WO2019128065A1 - 一种真空焊接炉的焊接机构 - Google Patents
一种真空焊接炉的焊接机构 Download PDFInfo
- Publication number
- WO2019128065A1 WO2019128065A1 PCT/CN2018/088224 CN2018088224W WO2019128065A1 WO 2019128065 A1 WO2019128065 A1 WO 2019128065A1 CN 2018088224 W CN2018088224 W CN 2018088224W WO 2019128065 A1 WO2019128065 A1 WO 2019128065A1
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- WO
- WIPO (PCT)
- Prior art keywords
- welding
- chamber
- plate
- negative pressure
- disposed
- 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
Definitions
- the welding mechanism of a vacuum welding furnace belongs to the technical field of vacuum welding.
- solder chips between the upper and lower sheets.
- This process is called splicing.
- the specific working process of the splicing is as follows: firstly, the solder paste is applied on the upper side of the slab, and the chip is placed at a specific position of the slab, and then the upper side is coated with the solder paste. On the upper side of the sheet, the top of the welding mold is covered on the bottom of the welding mold, and finally the welding mold is sent into the welding furnace for welding. The welding of the web needs to be carried out in a vacuum furnace.
- the Chinese utility model patent with the application number 201420820418.2 discloses a continuous vacuum welding furnace, which has the following technical problems during use:
- heating zone there is only one heating zone on the machine that is matched with the vacuum processing device. Because the material needs to be heated to a certain temperature, the solder paste can be melted and the welding effect is achieved, and the temperature rise of the material needs to move. Therefore, the heating time is long, and since the heating zone is disposed on the upper cover, the heating zone uses the radiation to heat the material, and the heat transfer efficiency is low, thereby further increasing the heating time of the material, so that the welding efficiency is low. ;
- the technical problem to be solved by the present application is to overcome the deficiencies of the prior art and provide a welding mechanism for a vacuum welding furnace capable of gradually heating a web, fast welding speed, and avoiding oxidation of the web.
- the welding mechanism of the vacuum welding furnace comprising: a welding chamber and a furnace cover on the upper side of the welding chamber, a welding cavity is arranged between the furnace cover and the welding chamber, and welding
- the lower part of the chamber is provided with a welding station.
- the side of the welding table near the feeding end is a heating zone
- the side of the welding station near the discharging end is a cooling zone
- the heating zone is provided with a negative pressure module on the upper side of the cooling zone, and the negative pressure is applied.
- the module can be lifted and lowered on the furnace cover, and the bottom of the vacuum pumping module and the heating zone are enclosed to form a sealed negative pressure chamber
- the welding chamber or the furnace cover is provided with a protective gas inlet pipe.
- the welding station comprises a plurality of heating plates and a plurality of cooling plates, the plurality of heating plates are spliced into a heating zone, and the plurality of cooling plates are spliced into a cooling zone.
- each of the heating plates is symmetrically disposed with an electric heating tube on both sides thereof, and a sensor mounting hole is disposed in a middle portion of the heating plate, and the sensor mounting hole is a blind hole disposed between the two electric heating tubes, and the sensor mounting hole is installed.
- the two sides of the cooling plate are symmetrically disposed with a water inlet passage, and at least one end of the cooling plate is provided with a drainage channel communicating with the two water inlet passages.
- the lower side of the welding chamber is provided with a liquid collecting cover, and the bottom sides of the liquid collecting cover are inclined from the side to the middle portion, and the bottom of the liquid collecting cover is provided with a liquid collecting cover liquid discharging pipe.
- the shielding gas inlet pipe is a main nitrogen inlet pipe, and a main nitrogen inlet pipe is disposed at both ends of the furnace cover, and a secondary nitrogen inlet pipe, a secondary nitrogen inlet pipe and a welding chamber are symmetrically disposed on both sides of the furnace cover. Connected.
- the lower part of the lower part of the furnace cover is symmetrically arranged with an air inlet plate, and the upper part of the air inlet plate is provided with an air inlet opening on the upper side, and is enclosed with the furnace cover to form an air inlet cavity, and the air inlet plate is spaced apart.
- the vacuum pumping module comprises a sealing plate and a vacuum lifting cylinder, wherein the sealing plate is disposed on the upper side of the heating zone and disposed parallel to the heating zone, and the bottom of the sealing plate and the heating zone are enclosed by a closed negative pressure cavity.
- a negative pressure tube is connected to the negative pressure chamber.
- the sealing plate is disposed on the lower side of the furnace cover, and the negative pressure lifting cylinder is disposed on the upper side of the furnace cover, and the piston rod of the negative pressure lifting cylinder is connected to the sealing plate through the connecting pipe, and the connecting pipe connects the negative pressure chamber with The negative pressure tube is connected.
- the method further includes a purification module, wherein the inlet end and the outlet end of the purification module are both in communication with the welding chamber.
- the purifying module comprises a purifying box and a coil and a filter arranged in the purifying tank, wherein the inlet end and the outlet end are respectively arranged on two sides of the purifying tank, the filter screen is arranged near the outlet end and the outlet end is closed.
- the coil is filled with circulating coolant, and a fan is arranged between the outlet end of the purification tank and the welding chamber.
- the purification module further comprises fins disposed in the purification tank.
- the heating zone of the welding mechanism of the vacuum welding furnace can heat the material, so that the material can be quickly welded in the negative pressure chamber, and the welding chamber is filled with protective gas, thereby avoiding the material and oxygen during the heating process.
- the cooling zone can cool the material, so that the temperature of the material removed from the welding chamber is low, that is, the material is prevented from being oxidized, and the welded material is conveniently processed in time, and the material is directly connected to the heating zone or
- the cooling zone contacts and heats and cools by means of heat conduction. Compared with the radiation heating method, the heating speed is greatly increased, so that the material can be quickly heated and cooled, and the energy consumption is reduced.
- a plurality of heating plates are spliced into a heating zone, and a plurality of cooling plates are spliced into a cooling zone, so that the welding chamber can simultaneously accommodate a plurality of chips, and the heating zone simultaneously heats the plurality of chips, so that the chips can be quickly welded.
- the temperature increases the welding speed.
- Each heating plate is provided with electric heating tube and temperature sensor, so that each heating plate realizes independent temperature control, so that the material can be gradually heated during the handling of the material to avoid excessive heating.
- the deformation of the web also prevents the solder from melting and flowing out too quickly, resulting in defective products.
- Each of the cooling plates is provided with a water inlet channel and a water outlet channel, so as to gradually reduce the temperature of the material piece, and avoid the cracking of the solder paste after solidification caused by the excessive temperature drop, resulting in poor contact between the chip and the material piece, and the failure occurs.
- the product can also avoid deformation of the web.
- the liquid collecting cover can discharge the liquid formed by the condensation in the cooling zone through the liquid collecting cover outlet pipe.
- the main nitrogen inlet pipe is arranged at both ends of the furnace cover, and the secondary nitrogen inlet pipe is symmetrically arranged on both sides of the furnace cover, thereby ensuring that the nitrogen gas rapidly fills the welding chamber, and the preparation time before welding is short and convenient to use.
- the auxiliary nitrogen gas inlet pipe uniformly injects nitrogen into the welding chamber through the air inlet plate, so that the air in the welding chamber can be completely emptied, and the heated material sheet is prevented from reacting with oxygen.
- the sealing plate and the heating zone are enclosed into a negative pressure chamber, and the negative pressure lifting cylinder can drive the sealing plate to lift and lower, thereby facilitating the moving of the material into or out of the negative pressure chamber.
- the negative pressure lifting cylinder is connected with the sealing plate through the connecting pipe and drives the sealing plate to lift and lower.
- the suction negative pressure pipe communicates with the negative pressure chamber through the connecting pipe, which not only facilitates the installation and connection of the sealing plate, but also facilitates the pumping of the negative pressure chamber. Negative pressure.
- the purification module can extract the shielding gas in the welding chamber and remove the welding oil vapor in the shielding gas to avoid excessive welding oil vapor generated by the solder paste, which affects the welding of the material.
- the coil heat exchanger exchanges heat with the extracted protective gas and lowers the temperature of the shielding gas to liquefy the welding oil, and then filters the shielding gas through the filter screen to leave the welding oil on the filtering net, thereby realizing Separation of welding oil and shielding gas.
- the fins can increase the heat exchange area between the coolant and the shielding gas, so that the shielding gas can be cooled rapidly, so that the welding oil in the shielding gas can be more thoroughly removed.
- Figure 1 is a perspective view of a vacuum welding furnace after removing the furnace cover.
- Figure 2 is a partial enlarged view of a portion A in Figure 1.
- Figure 3 is a schematic view of the installation of the electric push rod.
- Figure 4 is a perspective view of the welding station.
- Figure 5 is a right side view of the welding station.
- Figure 6 is a top cross-sectional view of the heating plate.
- Figure 7 is a top cross-sectional view of the cooling plate.
- Figure 8 is a front cross-sectional view of the weld chamber mounting member.
- Figure 9 is a front cross-sectional view of the mounting pin.
- Figure 10 is a perspective view of the furnace cover.
- Figure 11 is a front cross-sectional view of the furnace cover.
- Figure 12 is a partial enlarged view of the portion B in Figure 11.
- Figure 13 is a front cross-sectional view of the air intake plate.
- Figure 14 is a front elevational view of the vacuum pumping module.
- Figure 15 is a perspective view of a vacuum welding furnace.
- Figure 16 is a perspective view of the transport mechanism.
- Figure 17 is a front elevational view of the transport mechanism.
- FIG. 18 is a perspective view of a solder oil purification module.
- Figure 19 is a front cross-sectional view of the purification module.
- Feeding station 2101 feeding table letting position 22, mounting plate 23, adjusting spring 24, carrying rod 25, sealing sleeve 26, end cover 2601, conveying port 2602, baffle mounting groove 27, baffle 28, cooling plate 2801, cooling plate let position 2802, water inlet channel 2803, drainage channel 2804, cooling plate mounting hole 29, inlet pipe 30, heating plate 3001, heating plate to make the mouth 3002, electric heating pipe mounting hole 3003, sensor mounting hole 3004, heating plate mounting hole 31, electric heating tube 32, temperature sensor 33, liquid collecting cover 3301, liquid collecting cover liquid discharging pipe 34, suction negative pressure mounting frame 35, suction negative pressure lifting cylinder 36, sealing plate 37.
- a welding mechanism of a vacuum welding furnace includes a welding chamber 18 and a furnace cover on the upper side of the welding chamber 18, a welding chamber is disposed between the furnace cover 4 and the welding chamber 18, and a welding station 20 is disposed at a lower portion of the welding chamber 18, and the welding station 20
- the side near the feeding end is a heating zone
- the side of the welding station 20 near the discharge end is a cooling zone
- the upper side of the heating zone near the cooling zone is provided with a suction negative pressure module 9
- the suction negative pressure module 9 can be mounted up and down
- the bottom of the suction negative pressure module 9 and the heating zone are enclosed to form a sealed negative pressure chamber
- the welding chamber 18 or the furnace cover 4 is provided with a protective gas intake pipe.
- the heating zone of the welding mechanism of the vacuum welding furnace can heat the material, so that the material can be quickly welded in the negative pressure chamber, and the welding chamber 18 is filled with a protective gas, thereby avoiding the material and oxygen during the heating process.
- the reaction occurs, and the cooling zone can cool the material, so that the temperature of the material removed from the welding chamber 18 is low, that is, the material is prevented from being oxidized, and the welded material is conveniently processed in time, and the material is directly connected to the heating zone.
- the contact of the cooling zone, heating and cooling by means of heat conduction compared with the heating method using radiation, the heating speed is greatly improved, the material piece can be quickly heated and cooled, and the energy consumption is reduced.
- a conveying mechanism 2 is provided on the lower side of the welding chamber 18, and the welding chamber 18 is provided on the upper side of the frame 1.
- the transport mechanism 2 includes a transport rod 24 and a lifting mechanism, a translation mechanism and an opening and closing mechanism disposed on a lower side of the welding chamber 18.
- the middle portion of the transport rod 24 is disposed in the welding chamber 18, and both ends of the welding chamber 18 are closed by the end cover 26.
- each of the end covers 26 is provided with a carrying port 2601 on both sides thereof, the carrying rod 24 is horizontally disposed along the length direction of the welding chamber 18, and two carrying rods 24 are symmetrically disposed on both sides of the welding chamber 18, and each of the carrying rods 24 Both ends of the two end portions extend through the carrying port 2601 of the end cover 26.
- the lower side of the welding chamber 18 is horizontally provided with a transport mounting arm 45, the transport mounting arm 45 is in one-to-one correspondence with the transport rod 24, and the transport mounting arm 45 is disposed on the lower side of the transport rod 24 on the corresponding side, and both ends of each transport rod 24 are provided.
- the upper end of the mounting plate 22 is connected to the carrying rod 24 through the mounting plate 22, and the lower end of the mounting plate 22 is connected to the carrying mounting arm 45.
- the lifting mechanism is mounted on the frame 1, and the translation mechanism is mounted on In the lifting mechanism, the opening and closing mechanism is mounted on the translation mechanism, and the opening and closing mechanism is simultaneously connected with the two conveying rods 24, thereby realizing the opening, closing, lifting and translation of the two conveying rods 24, and facilitating the handling of the sheets.
- An adjusting spring 23 is disposed between one end of each of the carrying rods 24 and the mounting plate 22, and the adjusting spring 23 is sleeved on the carrying rod 24.
- the connecting rod 24 is slidably connected to the mounting plate 22 near the adjusting spring 23, and the adjusting spring 23 is disposed.
- one end of the adjusting spring 23 is supported on the mounting plate 22, and the other end is supported at the end of the carrying rod 24, so that the position adjusting spring 23 for adjusting the carrying rod 24 in the axial direction can also serve as a cushioning function. To avoid the impact load generated during handling, causing the material to fall.
- the lower side of the end cap 26 at both ends of the welding chamber 18 is spaced apart from the upper side of the welding table 20, so that a feeding end and a discharging end are formed at both ends of the welding chamber 18, and one end of the heating chamber is the feeding of the welding chamber 18. At the end, one end near the cooling zone is the discharge end of the welding chamber 18.
- a vertical baffle mounting groove 2602 is disposed at each end of each end cover 26, and a baffle 27 is slidably mounted in the baffle mounting groove 2602.
- the baffle 27 is slidably coupled to the carrying rod 24, and the baffle 27 and the carrying rod
- the seal is disposed between the 24, and the baffle 27 closes the transport port 2601 so that the baffle 27 can move with the transport rod 24 in the plane of the end cover 26 during the transport of the web by the transport rod 24, so that the baffle 27 always carries the transport port.
- the 2601 is closed to avoid nitrogen leakage, and the restriction on the size of the carrying port 2601 is also removed, thereby facilitating the setting of the movement trajectory of the carrying rod 24.
- the baffle 27 can also close the gap between the end cover 26 and the welding station 20, that is, the feeding end or the discharging end, and open the discharging end when the conveying rod 24 lifts the material to facilitate the movement of the material.
- Sealing sleeves 25 are mounted on both ends of each of the conveying rods 24, and each of the conveying rods 24 is slidably and sealingly connected to the shutters 27 through the sealing sleeve 25.
- the carrying rod 24 on each side of each station is provided with a plurality of receiving portions, and the receiving portion is disposed inside the carrying rod 24, and each supporting portion and the carrying rod 24 are disposed between
- the telescopic module is a cylinder or an electric push rod 69.
- the telescopic module is an electric push rod 69.
- the piston rod of the electric push rod 69 is connected to the receiving portion through the mounting portion of the receiving portion, so that the supporting portion extends to a position near the middle of the material, which is more stable when the material is lifted, and the electric push rod 69 is horizontally disposed.
- the bracket is mounted on the lower side of the telescopic portion of the electric push rod 69, and the receiving portions on both sides of each station are disposed toward the middle of the station.
- the soldering station 20 includes a plurality of heating plates 30 and a plurality of cooling plates 28, and the plurality of heating plates 30 are sequentially disposed along the length direction of the welding chamber 18 to form a heating zone, and the plurality of cooling plates 28 are along the welding chamber 18.
- the length directions are sequentially arranged to form a cooling zone, and the cooling zone is disposed near the discharge end, and each of the heating plates 30 and each of the cooling plates 28 is a station.
- the suction negative pressure module 9 is disposed on the upper side of the heating plate 30 near one end of the cooling zone.
- Each of the heating plates 30 is symmetrically disposed with a heating plate retaining port 3001, and two sides of each of the cooling plates 28 are symmetrically disposed with a cooling plate retaining port 2801, and the receiving portion extends into the heating plate retaining port 3001 or the cooling plate.
- the material in the position port 2801 and the flat plate placed on the heating plate 30 or the cooling plate 28 are lifted up, so that the material piece can be integrally placed on the cooling plate 28 or the heating plate 30, so as to prevent the material piece from being softened by heat, resulting in the material piece.
- the deformation is convenient, and the sealing of the negative pressure module 9 and the heating plate 30 is facilitated.
- An electric heating tube 31 is symmetrically mounted on both sides of each heating plate 30, and a temperature sensor 32 is disposed on the heating plate 30 between the two electric heating tubes 31, thereby achieving independent control of each heating plate 30, so that the heating plate 31 is provided.
- the temperature is gradually increased in the direction of the discharge end, so that the material is gradually heated to avoid the soldering dripping due to excessive heating.
- An inlet pipe 29 is connected to each of the cooling plates 28, and the cooling plate 28 cools the chips on the cooling table 28 by the cooling water, and the temperature of the cooling table 28 gradually decreases in the direction of the discharge end, thereby gradually feeding the material.
- the film is cooled to avoid cracking of the solidified solder paste due to excessive cooling.
- the feeding end of the welding chamber 18 is provided with a feeding table 21, and both ends of the feeding table 21 are provided with a feeding table reserving port 2101 matched with the receiving portion, and the material is placed on the feeding table 21.
- the transport mechanism 2 can transport the web to the soldering station 20 in the soldering chamber 18.
- the discharge end of the welding chamber 18 is provided with a discharge table 19, and both ends of the discharge table 19 are provided with a discharge table seating port 1901 which cooperates with the receiving portion, and the conveying mechanism 2 transports the cooled material to the workpiece
- the vacuum welding furnace is continuously welded, and the discharge and feeding can be realized without opening the furnace cover 4.
- the bottom of the welding chamber 18 is provided with a liquid collecting cover 33, and both sides of the liquid collecting cover 33 are gradually inclined from the side to the middle, and the central ends of the liquid collecting cover 33 are symmetrically disposed.
- the liquid collecting cover liquid discharging pipe 3301 can collect and discharge the water droplets formed by the liquefaction in the cooling zone outside the welding chamber 18, thereby avoiding the interference of the welding of the material in the welding chamber 18.
- the heating plate 30 is a rectangular plate, and a heating plate mounting hole 3004 is provided at a corner of the heating plate 30.
- An electric heating tube mounting hole 3002 is symmetrically disposed on both sides of the heating plate 30.
- the electric heating tube mounting hole 3002 is a horizontally disposed through hole, and an electric heating tube 31 is installed in each of the electric heating tube mounting holes 3002, thereby ensuring uniform heating.
- the middle of the heating plate 30 is further provided with a horizontal sensor mounting hole 3003.
- the sensor mounting hole 3003 is a blind hole disposed in parallel with the electric heating tube mounting hole 3002, and the length of the sensor mounting hole 3003 is half of the length of the heating plate 30, and the temperature sensor 32 It is installed in the sensor mounting hole 3003 so that the temperature of the heater board 30 can be detected in real time.
- the cooling plate 28 is a rectangular plate having a length and a width equal to the length and width of the heating plate 30, respectively, and a cooling plate mounting hole 2804 is provided at a corner of the cooling plate 28, and both sides of the cooling plate 28 are symmetrically disposed.
- the horizontal water inlet channel 2802, the water inlet channel 2802 is disposed along the length direction of the cooling plate 28, and one end of the cooling plate 28 is provided with a horizontal drainage channel 2803, and the drainage channel 2803 connects the two water inlet channels 2802 to complete the cooling.
- the temperature of the plate 28 is uniform and the cooling effect is good.
- Both ends of the drainage channel 2803 and the water inlet channel 2802 are provided with a connecting portion to facilitate the connection of the inlet pipe 29 and the outlet pipe.
- the welding chamber 18 is disposed on the upper side of the frame 1, and the welding chamber 18 is fixedly coupled to the frame 1 through the welding chamber mounting member 40.
- a plurality of welding chamber mounting members 40 are symmetrically disposed on both sides of the welding chamber 18.
- the lower ends of the welding chamber mounting members 40 are symmetrically disposed with a downwardly protruding fixing portion 4001.
- the fixing portion 4001 is provided with a through hole, and the welding chamber is provided.
- the mounting member 40 is fixedly coupled to the chassis 1 by bolts provided in the through holes of the fixing portion 4001.
- the two ends of the welding chamber mounting member 40 are symmetrically disposed with a stepped hole 4002.
- the diameter of the upper portion of the stepped hole 4002 is larger than the diameter of the lower portion.
- Each of the stepped holes 4002 is mounted with a mounting pin 39.
- the mounting pin 39 has a cylindrical shape and a mounting pin.
- the lower end of the 39 is coaxially provided with a threaded hole 3901.
- the threaded hole 3901 is a blind hole provided on the mounting pin 39.
- the diameter of the mounting pin 39 is equal to the diameter of the upper portion of the stepped hole 4002, and the lower end of the mounting pin 39 extends into the stepped hole 4002.
- the upper portion is fixedly connected to the welding chamber mounting member 40 by bolts.
- the heating plate mounting hole 3004 of the heating plate 30 is sleeved on the upper portion of the mounting pin 39, thereby completing the mounting of the heating plate 30, and the cooling plate mounting hole 2804 of the cooling plate 28 is sleeved on the upper portion of the mounting pin 39, thereby completing the cooling plate 28 Installation, easy to disassemble.
- the furnace cover 4 includes an upper cover cover and a lower cover mounting plate 14.
- the cover is a rectangular parallelepiped case with a lower side
- the cover mounting plate 14 is a rectangular parallelepiped plate.
- the mounting plate 14 is disposed on the lower side of the furnace cover and closes the lower opening of the furnace cover. Both the mounting arm 12 and the suction negative pressure module are mounted on the furnace cover mounting plate 14.
- the shielding gas is nitrogen
- the shielding gas inlet pipe is the main nitrogen inlet pipe 5
- the main nitrogen inlet pipe 5 is disposed at both ends of the furnace cover mounting plate 14, and the upper end of the main nitrogen inlet pipe 5 extends out of the furnace cover
- Each of the main nitrogen inlet pipes 5 is provided with a guide cover 6 on the upper side thereof, and the guide cover 6 is spaced apart from the upper side of the main nitrogen inlet pipe 5 on the corresponding side and spaced apart from the upper end of the main nitrogen inlet pipe 5, the guide cover 6 is cylindrical, the guide cover 6 and the main nitrogen inlet pipe 5 are vertically disposed, the guide cover 6 is disposed on the upper side of the furnace cover, and the guide cover 6 is disposed coaxially with the main nitrogen inlet pipe, and the guide cover 6 can be The pipe connected to the main nitrogen inlet pipe 5 is guided.
- An air hood 15 is disposed between each of the main nitrogen inlet pipe 5 and the furnace cover mounting plate 14.
- the left and right sides of the upper portion of the hood 15 are inclined from the bottom to the top, and the hood 15 is installed on the furnace cover.
- the lower side of the hood 15 is open, the lower side of the hood 15 is fixedly connected to the furnace cover mounting plate 14, and the lower side of the furnace cover 4 is provided with a hood 15 and a welding chamber 18
- the long holes are connected so that the protective gas can be injected into the welding chamber 18 in a uniform manner.
- the upper side of the furnace cover mounting plate 14 is further provided with a purifying air inlet pipe 7 and a purifying air outlet pipe 8, and the purifying air inlet pipe 7 and the purifying air outlet pipe 8 are both connected to the welding chamber 18 through the air hood 15, and the purifying air inlet pipe 7 and the purifying air outlet pipe 8 are disposed.
- a purifying air inlet pipe 7 and a purifying air outlet pipe 8 are both connected to the welding chamber 18 through the air hood 15, and the purifying air inlet pipe 7 and the purifying air outlet pipe 8 are disposed.
- the vacuuming module 9 it is possible to avoid that the temperature of the nitrogen gas is too low, causing the soldering oil to liquefy in the welding chamber 18, so that the temperature of the web is low and the welding time of the web is prolonged.
- the purification air outlet 8 communicates with the intake end of the purification module 59, and the purified air outlet 8 communicates with the intake end of the purification module 59, thereby being able to clean the welding oil vapor generated by the solder oil in the solder paste, and avoiding the welding oil vapor affecting the material. Piece of welding.
- the secondary nitrogen inlet pipe 16 is symmetrically disposed on both sides of the middle portion of the furnace cover mounting plate 14.
- the secondary nitrogen inlet pipe 16 is disposed on the upper side of the furnace cover mounting plate 14, and the outlet end of the secondary nitrogen inlet pipe 16 communicates with the welding chamber 18, so that nitrogen gas can be injected into the welding chamber 18 more uniformly, and the inside of the welding chamber 18 is ensured.
- the nitrogen is completely discharged to prevent the material from reacting with oxygen after heating.
- An air inlet plate 17 is disposed on a lower portion of the middle portion of the furnace cover mounting plate 14.
- the air inlet plate 17 is a rectangular plate.
- the upper side of the air inlet plate 17 is provided with an air inlet 1701 opening upward, and the air inlet 1701 is along the air inlet plate.
- 17 long holes arranged in the longitudinal direction, two sides of the furnace cover mounting plate 14 are provided with two air inlet plates 17, and two air inlet plates 17 are arranged in sequence along the length direction of the furnace cover mounting plate 14, each intake
- a plurality of gas injection holes 1702 are provided in the plate 17 at intervals in the longitudinal direction, so that uniform injection of nitrogen into the welding chamber 18 can be ensured.
- the lower side of the furnace cover mounting plate 14 is provided with a concave mounting opening 1401.
- the mounting opening 1401 is in one-to-one correspondence with the air inlet plate 17, and the upper portion of the air inlet plate 17 is installed in the mounting opening 1401 of the furnace cover mounting plate 14, and each The air inlets 1701 of the air inlet plates 17 are enclosed with the mounting holes 1401 of the furnace cover mounting plate 14 to form an air inlet chamber, and the air outlet end of the secondary nitrogen gas inlet pipe 16 communicates with the air inlet chamber, thereby facilitating injection into the air inlet chamber. Nitrogen.
- the negative pressure module 9 includes a vacuum mounting bracket 34, a sealing plate 36, a connecting tube 37, and a vacuum lifting cylinder 35, and the vacuum mounting bracket 34 is mounted on the upper side of the furnace mounting plate 14.
- the suction negative pressure lifting cylinder 35 is mounted on the suction negative pressure mounting frame 34, and the piston rod of the suction negative pressure lifting cylinder 35 is disposed vertically downward, and the sealing plate 36 is disposed on the lower side of the furnace cover mounting plate 14, and the sealing plate 36 is horizontal
- the bottom of the sealing plate 36 is concave, and the bottom surface of the sealing plate 36 is provided with a sealing ring around the outer edge of the sealing plate.
- the sealing plate 36 and the heating plate 30 are enclosed in a negative pressure chamber, and the material to be welded is disposed in the negative pressure chamber.
- a horizontal connecting plate 38 is mounted on the piston rod of the negative pressure lifting cylinder 35, the connecting plate 38 is disposed on the upper side of the furnace cover mounting plate 14, and the connecting pipe 37 is disposed between the connecting plate 38 and the sealing plate 36, and the connecting pipe 37 is The furnace cover mounting plate 14 is slidably and sealingly connected, and the lower end of the connecting pipe 37 is in communication with the negative pressure chamber, and the upper end of the connecting pipe 37 is connected with a suction negative pressure pipe.
- the present application also provides a vacuum welding furnace including a conveying mechanism 2 and a welding mechanism of the above-described vacuum welding furnace.
- the conveying mechanism 2 is disposed on the frame 1 on the lower side of the welding chamber 18.
- the lower side of the welding chamber 18 is spaced apart from the translation plate 41.
- the transport mounting arm 45 is disposed between the translating plate 41 and the welding chamber 18.
- the transport mounting arm 45 is slidably mounted on the translating plate 41 through the mounting seat.
- the translation mechanism is coupled to the translating plate 41 and drives the translating plate 41 to translate in the conveying direction of the web.
- the lower side of the translating plate 41 is spaced apart from the horizontal transport mounting plate 52.
- the upper side of the transport mounting plate 52 is symmetrically disposed with a translating plate guide 51.
- the translating plate guide 51 is disposed parallel to the center line of the carrying rod 24, and the translating plate 41 passes through
- the translating plate slider disposed on the lower side is slidably mounted on the translating plate guide 51, and the carrying mounting plate 52 is mounted on the elevating mechanism and lifted and lowered with the elevating mechanism.
- the lifting mechanism includes a horizontally disposed translation frame 49, a lifting guide block 48, a lifting guide frame 47, and a carrying lifting cylinder 46.
- the frame 1 is mounted with a horizontal translation frame rail 50, and the translation frame rail 50 is disposed in parallel with the translation plate rail 51.
- the translating frame 49 is slidably mounted on the translating frame rail 50 by a lower translating slider.
- the handling lifting cylinder 46 is horizontally mounted on the frame 1, and the piston rod of the carrying lifting cylinder 46 is disposed in the direction of the translating frame 49.
- the piston rod of the carrying lifting cylinder 46 is connected to the translating frame 49 and pushes the translating frame 49 along the web. Move in direction.
- the lifting guide block 48 is symmetrically disposed on both sides of the translating frame 49.
- the upper side of the lifting guide block 48 is provided with an elevating guiding portion, and the elevating guiding portion is inclined upward in a direction close to the carrying lifting cylinder 46, and the lifting guide frame 47 is lifted.
- the lower side of the lifting guide frame 47 is rotatably mounted with the lifting guide wheel, and the lifting guiding wheel is fitted with the lifting guide portion of the lifting guide block 48 on the corresponding side, thereby realizing the handling of the mounting plate 52.
- Lifting A vertical lifting rail is disposed on the frame 1, and the lifting mounting plate 52 is slidably mounted on the lifting rail by a lifting slider to guide the handling mounting plate 52.
- the translating mechanism includes a translating motor mounting bracket 54, a transporting mobile rack 55, and a translating motor 53, the translating motor mounting bracket 54 is disposed on the lower side of the transport mounting plate 52, and the translating motor 53 is mounted on the translating motor mounting bracket 54, and the translating motor 53 is The output shaft is horizontally set and placed parallel to the direction in which the web is transported.
- the translation motor 53 is coaxially mounted with a translation screw.
- the translation screw rotates synchronously with the translation motor 53.
- the transport carriage 55 is slidably mounted on the translation motor mount 54, and the transport carriage 55 is provided with a translation screw. Pan the nut.
- the upper side of the transporting carriage 55 passes through the transport mounting plate 52 and is connected to the translating plate 41 to drive the translating plate 41 to move synchronously.
- the transporting movable frame 55 and the transport mounting plate 52 are slidably disposed.
- the opening and closing mechanism includes a opening and closing mounting rod 42, an opening and closing guide plate 43, an opening and closing movement frame 56, a opening and closing motor mounting frame 57, an opening and closing movement frame 56, and an opening and closing power module.
- the opening and closing power module The motor 58 is opened and closed.
- the opening and closing motor mounting bracket 57 is disposed on the lower side of the transport mounting plate 52.
- the upper side of the opening and closing motor mounting bracket 57 is connected to the translating plate 41 and moves synchronously with the translating plate 41, and the opening and closing motor mounting frame 57 and the transport mounting plate 52 slide. connection.
- the opening and closing motor 58 is mounted on the opening and closing motor mounting frame 57.
- the opening and closing mobile frame 56 is slidably mounted on the opening and closing motor mounting frame 57.
- the output shaft of the opening and closing motor 58 is coaxially mounted with an opening and closing screw, and the opening and closing moving frame 56 is provided with an opening corresponding to the opening and closing screw.
- the opening and closing motor 58 is driven by the screw nut pair to move the opening and closing movement frame 56 in the sheet conveying direction.
- the upper side of the translating plate 41 is provided with a mounting rod slider, and the opening and closing mounting rod 42 is slidably mounted on the mounting rod slider, and the opening and closing mounting rod 42 is disposed along the conveying direction of the web, and the upper side and the opening of the opening and closing movable frame 56 are opened.
- the mounting rod 42 is connected and drives the opening and closing mounting rod 42 to move synchronously, and the opening and closing moving frame 56 is slidably connected to the carrying and mounting plate 52. Both ends of the opening and closing mounting rod 42 are provided with an opening and closing guide plate 43. Both sides of the opening and closing guide plate 43 are provided with an opening and closing guiding portion, and the opening and closing guiding portion is inclined gradually inward along the conveying direction of the material. Opening and closing guide wheels 44 are attached to both ends of each of the transport mounting arms 45, and the two transport mounting arms 45 are further provided with the opening and closing guide wheels 44 and the opening and closing guide portions of the opening and closing guide plates 43. Open and close the spring.
- a mounting arm rail is further mounted on the translating plate 41. The mounting arm rail is disposed perpendicular to the opening and closing mounting rod 42, and the transport mounting arm 45 is slidably mounted on the mounting arm rail by the opening and closing slider.
- the purification module 59 includes a purification tank 61 and a coil 67 and a filter 64 disposed in the purification tank 61.
- the purification tank 61 is a rectangular parallelepiped box, and a purification tank is connected to one side of the purification tank 61.
- the gas pipe 62, the other side of the purification tank 61 is connected with a purge tank outlet pipe, and a fan 65 is disposed between the purge tank outlet pipe and the welding chamber 18.
- the coil 67 is disposed in the purification tank 61.
- the coil 67 is also connected to the fuel supply tank 60.
- the oil outlet of the fuel tank 60 communicates with one end of the coil 67 through a circulation pump, and the other end of the coil 67 communicates with the fuel supply tank 60. Thereby a circulation of the cooling oil is achieved.
- a fin 68 connected to the coil 67 is also provided in the purge tank 61, so that heat exchange with nitrogen can be performed more quickly, and the temperature of the nitrogen gas is lowered.
- a filter installation box 63 is disposed on a side of the purifying tank 61 near the outlet tank of the purifying tank, and the purifying tank outlet duct communicates with the purifying tank 61 through the screen mounting box 63.
- the screen 64 is vertically disposed in the screen mounting box 63, and is cooled. The nitrogen gas passes through the filter screen 64 and is discharged through the purge tank outlet pipe and is again sent to the welding chamber 18.
- the screen 64 is used to filter the liquefied solder oil to remove the solder oil vapor in the nitrogen gas.
- the lower side of the purification tank 61 is further provided with a welding oil collecting bucket 66.
- the lower side of the purifying tank 61 has an inclined shape closer to the other end than the one end of the lubricating oil collecting tub 66, so that the liquid which is cooled and liquefied can flow into the lubricating oil. Collect the inside of the bucket 66.
- a welding process for the above vacuum welding furnace includes the following steps:
- furnace cover 4 closes the welding chamber 18, and the protective gas inlet pipe is filled with the shielding gas into the welding chamber 18;
- the welding chamber 18 is filled with nitrogen gas through the main nitrogen gas inlet pipe 5 and the sub nitrogen gas inlet pipe 16, so that the nitrogen gas fills the entire welding chamber 18, and the air in the welding chamber 18 is completely discharged.
- the electric heating pipe 31 heats the heating plate 30, and the inlet pipe 29 passes the cooling water into the cooling plate 28.
- the transport mechanism 2 transports the material piece by piece into the negative pressure chamber, and the heating zone gradually heats the material in the conveying process;
- the web is placed on the feeding table 21, and the lifting mechanism drives the conveying rod 24 to move downward.
- the opening and closing mechanism drives the two conveying rods 24 to move downward to the position close to the web, and feeds with the feeding table 21.
- the table position position 2101 is aligned, and the lifting mechanism again drives the conveying rod 24 to move downward and the receiving portion is located in the feeding table retaining port 2101, and then the electric push rod 69 drives the receiving portion to move and the supporting portion extends into the position.
- the underside of the web is aligned, and the lifting mechanism again drives the conveying rod 24 to move downward and the receiving portion is located in the feeding table retaining port 2101, and then the electric push rod 69 drives the receiving portion to move and the supporting portion extends into the position.
- the underside of the web is aligned, and the lifting mechanism again drives the conveying rod 24 to move downward and the receiving portion is located in the feeding table retaining port 2101, and then the electric push rod 69 drives the receiving portion to move and the supporting portion extend
- the lifting mechanism drives the conveying rod 24 to move upwards to complete the lifting of the web, and at the same time, the baffle 27 of the feeding end opens the feeding end, and the translation mechanism drives the conveying rod 24 to move toward the discharging end of the welding chamber 18, and the material is moved.
- the sheet is transported to a heating plate 30 in the welding chamber 18.
- the transport mechanism 2 is transported one by one, so that the web is heated by each of the heating plates 30, and then enters the heating plate 30 directly below the vacuuming module 9.
- the negative pressure lifting cylinder 35 drives the sealing plate 36 to move downward, so that the sealing plate 36 and the heating plate 30 directly below thereof are enclosed into a sealed negative pressure chamber, and the negative pressure tube will extract the gas in the negative pressure chamber to make the negative pressure.
- the negative pressure or even the vacuum state is maintained in the cavity to ensure the bubble overflow in the solder paste to ensure the quality of the solder.
- the suction negative pressure lifting cylinder 35 drives the sealing plate 36 to rise.
- the transport mechanism 2 transports the material piece welded in the negative pressure chamber to the discharge end, and the cooling zone gradually cools the material.
- the transport mechanism 2 continues to transport the web to the discharge end, and after the web is cooled by each of the cooling plates 28, it is moved to the discharge table 19 to complete the welding of the web.
- the receiving portion is directly mounted on the carrying rod 24, and the heating plate 30 is provided with a heating plate at the two ends of the heating plate 30, and the cooling plate is provided at both ends of the cooling plate 28. 2801, the support part supports the web through the two ends of the web.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Furnace Details (AREA)
- Arc Welding In General (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Tunnel Furnaces (AREA)
Abstract
Description
Claims (12)
- 一种真空焊接炉的焊接机构,其特征在于:包括焊接室(18)以及焊接室(18)上侧的炉盖,炉盖(4)与焊接室(18)之间设置有焊接腔,焊接室(18)下部设有焊接台(20),焊接台(20)靠近进料端的一侧为加热区,焊接台(20)靠近出料端的一侧为冷却区,加热区靠近冷却区的一端上侧设置有抽负压模块(9),抽负压模块(9)可升降的安装在炉盖(4)上,抽负压模块(9)底部与加热区合围成密闭的负压腔,焊接室(18)或炉盖(4)上设置有保护气进气管。
- 根据权利要求1所述的真空焊接炉的焊接机构,其特征在于:所述的焊接台(20)包括多块加热板(30)以及多块冷却板(28),多块加热板(30)拼接成加热区,多块冷却板(28)拼接成冷却区。
- 根据权利要求2所述的真空焊接炉的焊接机构,其特征在于:每块所述的加热板(30)的两侧均对称设置有电热管(31),加热板(30)的中部设置有传感器安装孔(3003),传感器安装孔(3003)为设置在两电热管(31)之间的盲孔,传感器安装孔(3003)内安装有温度传感器(32)。
- 根据权利要求2所述的真空焊接炉的焊接机构,其特征在于:所述的冷却板(28)的两侧对称设置有进水通道(2802),冷却板(28)的至少一端设置有与两进水通道(2802)连通的排水通道(2803)。
- 根据权利要求1所述的真空焊接炉,其特征在于:所述的焊接室(18)的下侧设置有集液罩(33),集液罩(33)的底部两侧为由侧部至中部逐渐向下的倾斜状,集液罩(33)底部设有集液罩出液管(3301)。
- 根据权利要求1所述的真空焊接炉的焊接机构,其特征在于:所述的保护气进气管为主氮气进气管(5),炉盖(4)的两端均设置有主氮气进气管(5),炉盖(4)的中部两侧对称设置有副氮气进气管(16),副氮气进气管(16)与焊接室(18)连通。
- 根据权利要求6所述的真空焊接炉的焊接机构,其特征在于:所述的炉盖(4)下部两侧对称设置有进气板(17),进气板(17)的上部设有上侧敞口的进气口(1701),并与炉盖(4)合围成进气腔,进气板(17)上间隔设置有多个将进气口(1701)与焊接室(18)连通的喷气孔(1702),副氮气进气管(16)与进气口(1701)连通。
- 根据权利要求1所述的真空焊接炉的焊接机构,其特征在于:所述的抽负压模块(9)包括密封板(36)以及抽负压升降气缸(35),密封板(36)设置在加热区上侧并与加热区平行设置,密封板(36)的底部与加热区合围成封闭的负压腔,负压腔连接有抽负压管。
- 根据权利要求8所述的真空焊接炉的焊接机构,其特征在于:所述的密封板(36)设置在炉盖(4)下侧,抽负压升降气缸(35)设置在炉盖(4)上侧,抽负压升降气缸(35)的活塞杆通过连接管(37)与密封板(36)相连,连接管(37)将负压腔与抽负压管连通。
- 根据权利要求1所述的真空焊接炉的焊接机构,其特征在于:还包括净化模块(59),净化模块(59)的进气端和出气端均与焊接室(18)连通。
- 根据权利要求10所述的真空焊接炉的焊接机构,其特征在于:所述的净化模块(59)包括净化箱(61)以及设置在净化箱(61)内的盘管(67)和滤网(64),进气端和出气端分别设置在净化箱(61)的两侧,滤网(64)靠近出气端设置并将出气端封闭,盘管(67)内充有循环的冷却液,净化箱(61)的出气端与焊接室(18)之间设置有风机(65)。
- 根据权利要求11所述的真空焊接炉的焊接机构,其特征在于:所述的净化模块(59)还包括设置在净化箱(61)内的翅片(68)。
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DE112018006659.2T DE112018006659T5 (de) | 2017-12-29 | 2018-05-24 | Schweißeinheit eines Vakuumschweißofens |
JP2020536686A JP7175987B2 (ja) | 2017-12-29 | 2018-05-24 | 真空溶接炉の溶接機構 |
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CN201711475755.7A CN107838516B (zh) | 2017-12-29 | 2017-12-29 | 一种真空焊接炉的焊接机构 |
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CN107963443B (zh) * | 2017-12-29 | 2019-07-16 | 山东才聚电子科技有限公司 | 一种真空焊接炉的搬运机构 |
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CN107838516B (zh) * | 2017-12-29 | 2023-10-03 | 山东才聚电子科技有限公司 | 一种真空焊接炉的焊接机构 |
CN107855623B (zh) * | 2017-12-29 | 2023-07-18 | 山东才聚电子科技有限公司 | 一种真空焊接炉控制系统及其控制方法 |
CN115625393B (zh) * | 2022-12-06 | 2023-11-14 | 山东才聚电子科技有限公司 | 一种静态真空焊接炉 |
CN116921794B (zh) * | 2023-09-05 | 2024-04-05 | 三河市海旭环保设备有限公司 | 一种半导体焊接用可智能控温的真空焊接炉 |
CN118060660A (zh) * | 2024-04-18 | 2024-05-24 | 江苏安德瑞医疗器械配件有限公司 | 一种取样钳加工用焊接装置 |
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CN107963443A (zh) * | 2017-12-29 | 2018-04-27 | 山东才聚电子科技有限公司 | 一种真空焊接炉的搬运机构 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111570998A (zh) * | 2020-06-09 | 2020-08-25 | 深圳市劲拓自动化设备股份有限公司 | 一种电路板真空焊接设备 |
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