CN109332959A - A kind of vacuum welding picks and its welding procedure - Google Patents
A kind of vacuum welding picks and its welding procedure Download PDFInfo
- Publication number
- CN109332959A CN109332959A CN201811446727.7A CN201811446727A CN109332959A CN 109332959 A CN109332959 A CN 109332959A CN 201811446727 A CN201811446727 A CN 201811446727A CN 109332959 A CN109332959 A CN 109332959A
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- Prior art keywords
- welding
- vacuum
- shell
- cavity
- heating
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- 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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
- B23K31/025—Connecting cutting edges or the like to tools; Attaching reinforcements to workpieces, e.g. wear-resisting zones to tableware
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/38—Selection of media, e.g. special atmospheres for surrounding the working area
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/003—Cooling means
Abstract
The present invention provides a kind of vacuum welding and picks and its welding procedure, including frame, cooling system, pumped vacuum systems, Lifting carrying system, heating system and electric-control system；Heating system includes shell, the first cover board, heating cavity and bottom plate, shell includes the first shell and second housing, first shell is flexibly connected with second housing and opposite can open to two sides, interior of shell is equipped with sheath, heating device is set on the outside of sheath, casing is set to outside heating cavity, cavity upper and lower ends fixed connection and sealing plate.Welded workpiece is pre-processed in advance before welding, the junction of welding workpiece is attached using soldering paste, the intracavitary of cavity is directly placed into after the completion of connection to be heated, welding efficiency is effectively raised, while each system effectively raises working efficiency by the control of electric-control system, it is more intelligent, reduce manual operation, can reach batch production to effect the being consistent property uniformity of the welding of cutter.
Description
Technical field
The present invention relates to vacuum welding technical field, especially a kind of vacuum welding picks and its welding procedure.
Background technique
Titanium alloy has good specific strength height, corrosion resistance, high temperature resistant and toughness and weldability as a kind of new material
The series of advantages such as preferably, and have and compatibility of the advanced composite material in terms of calorifics, electrochemistry, have become aviation system
The important structural material of industry is made, is also more and more paid attention in other industry, has and is more and more widely used prospect.By
It is active metal in titanium alloy, is aoxidized at 200 DEG C or more, so the welding of titanium will carry out in vacuum chamber.
The materials such as PCD, PCBN, CVD, MD, ND are widely used in life, either aerospace, shipbuilding, rail
The every field such as road traffic, automobile, food and drink have a great application, the welding product of superhard material structure be also it is more and more,
Structure also becomes increasingly complex, and superhard material has that very active chemical property, thermal conductivity be small, spy with large heat capacity at high temperature
Point, superhard material is also easily oxidized in welding, such as is made of in PCD, PCBN class cutter composite layer and alloy-layer, material
Expect that characteristic is different, the constriction coefficient after heating is different, is easy to cause that material is cracked, layering, bulging, easily occur oxidation and
The problems such as by air pollution, seriously affect welding quality.It must be solved using protective gas is filled inside pipeline when normal welding
The high-temperature oxydation problem of internal weld seams, the guard method of traditional easy device make the welding quality of product be in unstable shape
State, it is difficult to ensure that the stable mass production of product.
Summary of the invention
The purpose of the present invention is overcome the above-mentioned insufficient of the prior art and provide it is a kind of practical, safe and reliable,
Can batch steady production, be able to achieve workpiece non-oxidation, pore-free, flawless automatic welding, can greatly improve metal works weldering
The vacuum welding for connecing quality and welding efficiency picks and its welding procedure.
The technical scheme is that a kind of vacuum welding picks and its welding procedure, including frame, cooling system, pumping are true
Empty set system, Lifting carrying system, heating system and electric-control system, the frame left are equipped with pumped vacuum systems, and right side is equipped with
Electric-control system is equipped with cooling system, Lifting carrying system and heating system, the cooling system, pumped vacuum systems, liter among it
Carrier system and heating system drop by the control of electric-control system；
The heating system includes shell, the first cover board, heating cavity and bottom plate, and the shell includes outside the first shell and second
Shell, first shell are flexibly connected with second housing and opposite can open to two sides, and the interior of shell is equipped with sheath, described
Cover top portion and bottom are respectively equipped with the first cover board and bottom plate, and the heating device is set on the outside of sheath, and the casing is set to
Outside heating cavity, the cavity upper and lower ends fixed connection and sealing plate；
The Lifting carrying system includes driving device, mechanical skid plateform, the first shaft, the second shaft and several objective tables, institute
It states the first shaft and is fixedly connected by beam rail with mechanical skid plateform, the shaft lower end is connected with the second shaft, institute by loop bar
The second shaft is stated equipped with objective table, the driving device is set to the top of mechanical skid plateform, and the driving device driving is mechanical sliding
Platform band dynamic object stage moves up and down, and is arranged with the second cover board on first shaft；
The cavity is hollow, and sealing plate is equipped with to be moved in through-hole with the matched through-hole of objective table, the objective table, and described second
Cover plate lid is closed on the sealing plate of cavity upper end, and second cover board and sealing plate junction are equipped with gasket.
Further, the cooling system includes water jacket sheath and sink set, the water jacket sheath be set to shell and sheath it
Between, the outer side of shell is set to the pipe joint communicated with water jacket sheath, and the sink is sheathed on the close sealing in both ends on the outside of cavity
At plate, it is set to the sink communicated in the sink set, the sink is communicated or is independently arranged with water jacket protective case, outside the sink
It puts on and is equipped with water inlet pipe and/or outlet pipe.
Further, it is put on outside the sink and is additionally provided with pressure ring, both ends are additionally provided with retaining ring, the sealing plate on the outside of the cavity
It is fastenedly connected by pressure ring and cavity；First shell and second housing are movably hinged or axis connects, first shell and the
Two shell aperture junctions are equipped with locking device, and the locking device is buckle or bolt.
Further, it is equipped with partition on the inside of first cover board, the junction of first shell and second housing is equipped with side
Strip of paper used for sealing, the both ends of the sheath are opposite to be equipped with reflector.
Further, the outer upper end of institute's shell is equipped with water outlet pipe head, and lower end is equipped with water inlet pipe joint.
Further, the heating device is light radiation heater.
Preferably, the light radiation heater is infrared halogen lamp tube, and the quantity of the infrared halogen lamp tube is 10-30
Branch.
Further, bearing capacity≤80Kg of the objective table.
Further, the top of the objective table is equipped with several heat screens, and the cavity lower end is additionally provided with support plate, the branch
Fagging is equipped with mandril, several heat screens is equipped at the top of the mandril, each heat screen is separated by setting by spacer ring, described true
Blank pipe is communicated with the bottom of cavity.
Further, the cooling system includes water collector, hydraulic pressure switch and cooling-water machine, the water collector and water outlet pipe head
Connection, the water collector are connect by pipeline with cooling-water machine, and the cooling-water machine is set to heating cavity bottom, are set on the cooling-water machine
There is hydraulic pressure switch, the hydraulic pressure is opened to be connect with electric-control system.
Further, the vacuum system includes that vacuum meter, molecular pump, mechanical pump, sensor, vacuum tube, bellows are gentle
Movable valve, the molecular pump and mechanical pump are arranged in parallel and connect with vacuum tube, equipped with bellows and very among the vacuum tube
Sky meter, the other end of the vacuum tube are connected to the bottom of cavity, and operated pneumatic valve, institute are equipped on the molecular pump and mechanical pump
It states and is connect with sensor on molecular pump and mechanical pump, control of the sensor by electric-control system.
Further, the electric control part includes touch-screen display, temperature transmitter, temperature controller, pressure regulator and opens
Powered-down source forms the control unit of a whole set of electric-control system, the temperature transmitter, temperature controller, pressure regulator and Switching Power Supply
Connect with touch-screen display, the temperature transmitter and temperature controller are connect with heating device, the pressure regulator with
Vacuum pump connection.
Further, the frame is made of aluminium alloy extrusions, and top is equipped with work top, and the work top is quartz
Table top.
Further, the driving device is stepper motor, and the frame lower end is additionally provided with the universal wheel of strap brake.
A kind of vacuum welding picks and its welding procedure, comprising the following steps:
(1) workpiece to be processed is first ready to by preparation, and is cleaned to workpieces processing surface；
(2) workpiece after cleaning is dry, soldering paste is smeared in workpiece weld after drying；
(3) it is put into after the completion of smearing and workpiece is toasted, keep soldering paste dry and welding workpiece is positioned；
(4) welding hatch door is opened, is put the workpiece in vacuum welding picks, puts neat, closes hatch door；
(5) pumped vacuum systems is opened to vacuumizing in heating chamber, is reached vacuum requirement, is opened heating device, start to work
Part is welded；
(6) cooling system is opened after the completion of welding, while to air is poured in heating chamber, opening cabin when consistent with ambient pressure
Door, welding workpiece of taking detect quality, complete entire welding operation.
Compared with the prior art, the invention has the following features:
1, several objective tables are equipped in Lifting carrying system, the multiple batches of interlayer of energy multilayer places PCD, PCBN class cutter, simultaneously
It is moved up and down equipped with driving device driving objective table and facilitates arrangement of tool, improve welding efficiency, while can preferably make cavity
The efficiency vacuumized improves sealing effect, and processing rear cutter needs driving device driving up to move, and increases cutter cooling
Time is more conducive to being fully cooled cutter, is conducive to docking when Welding of cutters, improves the effect to Welding of cutters, mentions
High yield quality.
2, the intracorporal evacuating air of chamber is effectively reduced the oxidation when welding to cutter, mentioned by vacuum system
High welding efficiency and quality, reach seamless welding, the especially welding to small cutter or the cutter maintenance of superhard material, as long as
By cutter using being directly placed in heating apparatus and can complete after soldering paste connection, working efficiency is effectively raised, is improved
Welding quality.
3, cooling water rushes water segregator entrance, and aggregation is recycled by cooling-water machine again at water collector, plays well
Cooling effect to cavity, cooling water flow from the bottom up, further improve the cooling effect to cavity.
4, welded workpiece is pre-processed before welding in advance, the junction of welding workpiece is connected using soldering paste
Connect, be directly placed into the intracavitary of cavity after the completion of connection and heated, effectively raise welding efficiency, at the same each system by
The control of electric-control system effectively raises working efficiency, more intelligent, reduces manual operation, can be to the welding of cutter
Effect being consistent property uniformity, batch production can be reached.
Detailed construction of the invention is further described below in conjunction with the drawings and specific embodiments.
Detailed description of the invention
Fig. 1-is the structural schematic diagram that vacuum welding of the present invention picks；
Fig. 2-is shell mechanism schematic diagram in Fig. 1；
Fig. 3-is shell opening state structural schematic diagram in Fig. 2；
Fig. 4-is shell cross sectional plan view in Fig. 3；
Fig. 5-is shell opening state sectional view in Fig. 3；
Fig. 6-is heating cavity structural schematic diagram in Fig. 1；
Fig. 7-is process flow chart of the invention；
1-water jacket sheath, 2-shells, 3-sheaths, 4-hinges, 5-pipe joints, 6-sealing strips, 7-side sealing strips, 8-reflections
Cover, 9-side baffles, 10-heating devices, 11-partitions, the 12-the second cover board, 13-sealing plates, 14-sink sets, 15-water
Slot, 16-loop bars, 17-heat screens, 18-objective tables, 19-heating cavities, 20-mandrils, 21-support plates, 22-spacer rings,
23-pressure rings, the 24-the first shaft, the 25-the second shaft, 26-displays, 27-frames, 28-universal wheels, the 29-the first lid
Plate.
Specific embodiment
As shown in Fig. 1-7: a kind of vacuum welding picks and its welding procedure, including frame 27, cooling system, vacuumizes and be
System, Lifting carrying system, heating system and electric-control system, pumped vacuum systems is equipped on the left of the frame 27, and right side is equipped with electricity
Control system is equipped with cooling system, Lifting carrying system and heating system, cooling system, pumped vacuum systems, Lifting carrying among it
System and heating system are by the control of electric-control system.
Heating system includes shell 2, the first cover board 29, heating cavity 19 and bottom plate, and shell 2 includes the first shell 2 and the
Two shells 2, the first shell 2 are flexibly connected with second housing 2 and opposite can open to two sides, sheath 3 are equipped with inside shell 2, outside
The top and bottom of shell 2 are respectively equipped with the first cover board 29 and bottom plate, and the first shell 2 is equipped with side sealing strip with 2 junction of second housing
7, partition 11 is equipped on the inside of the first cover board 29, the both ends of sheath 3 are opposite to be equipped with reflector 8, and being provided with for reflector 8 is conducive to chamber
The raising of body temperature reduces scattering and disappearing for thermal temperature, and heating device 10 is set to 3 outside of sheath, and shell 2 is sheathed on heating cavity
Outside 19, the cover board junction of cavity upper and lower ends fixed connection and sealing plate 13, the first shell 2 and second housing 2 is equipped with side baffle
9。
Lifting carrying system includes driving device, mechanical skid plateform, the first shaft 24, the second shaft 25 and several objective tables
18, mechanical skid plateform is fixed on the rear end of heating system, and the first shaft 24 is fixedly connected by beam rail with mechanical skid plateform, under shaft
End is connected with the second shaft 25 by loop bar 16, and the second shaft 25 is equipped with objective table 18, and driving device is equipped with mechanical skid plateform
Top, driving device driving mechanical skid plateform band dynamic object stage 18 move up and down, the second cover board 12 are arranged on the first shaft 24, is driven
Dynamic device is stepper motor.
Cavity is cylindrical, is made of high purity quartz pipe, and cavity is hollow, sealing plate 13 be equipped with the matched through-hole of cavity,
Objective table 18 moves in through-hole, and the second cover board 12 lid closes the second cover board 12 and sealing plate on the sealing plate 13 of cavity upper end
13 junctions are equipped with gasket.
Cooling system includes water collector, hydraulic pressure switch and cooling-water machine, and water collector is connect with water outlet pipe head 5, and water collector is logical
Piping is connect with cooling-water machine, cooling-water machine be set to 19 bottom of heating cavity, cooling-water machine be equipped with hydraulic pressure switch, hydraulic pressure open with it is automatically controlled
System connection.
Cooling system further includes water jacket sheath 1 and sink set 14, and water jacket sheath 1 is set between shell 2 and sheath 3, shell 2
Outside is set to the pipe joint 5 communicated with water jacket sheath 1, and sink covers 14 set on both ends on the outside of cavity at sealing plate 13, sink
The sink 15 communicated is set in set 14, sink 15 is connect with water jacket protective case 3 by hose, is put on outside sink 15 equipped with water inlet pipe
Or outlet pipe；Sink 15 can also be independently arranged, and be equipped with water inlet pipe and outlet pipe on sink set 14 simultaneously and connect with cooling-water machine.
Put on outside sink 15 and be additionally provided with pressure ring 23, both ends are additionally provided with retaining ring on the outside of cavity, sealing plate 13 by pressure ring 23 with
Cavity is fastenedly connected, and sealing plate 13 and 15 housing junction of sink are equipped with gasket, and the fastening of compression ring 23 effectively raises
The sealing effect of cavity is conducive to vacuumize cavity.
First shell 2 is movably hinged with second housing 2 or axis connects, and the present embodiment is connected using hinge 4, the first shell
2 are equipped with buckle with the junction that is open of second housing 2, clasp the first shell 2 with second housing 2 using buckle when closure, avoid
Automatically open, the first shell 2 plays a very good protection to cavity with second housing 2, while can to the intracorporal stage property of chamber or
Workpiece carries out heating welding, and when after processing is completed, opening cooling system, the cooling water circulation in shell 2 can be to intracavitary progress
Fast cooling.
Outer upper end be equipped with water outlet pipe head 5, lower end is equipped with water inlet pipe joint 5, and cooling water from below to up, mentions well
High cooling effect, while the setting of cooling-water machine, constantly from lower end, water inlet pipe joint 5 enters low-temperature cold water, further mentions
High cooling effect.
Heating device 10 is light radiation heater；Preferably, light radiation heater is infrared halogen lamp tube, infrared halogen lamp
The quantity of pipe is 20, and halogen lamp tube is longitudinally equipped between sheath 3 and shell 2, can also be laterally arranged, what the present embodiment used
Be it is longitudinally disposed, sheath 3 plays a very good protection to fluorescent tube, and halogen lamp tube can be quickly to heating in cavity, temperature
Degree rises rapidly, and effectively raises working efficiency.
The bearing capacity of objective table 18 is 50Kg, and the top of objective table 18 is equipped with several heat screens 17, and cavity lower end is additionally provided with
Support plate 21, support plate 21 are equipped with mandril 20, several heat screens 17 are equipped at the top of mandril 20, and each heat screen 17 passes through spacer ring 22
It is separated by setting, vacuum tube is communicated with the bottom of cavity, and heat screen 17 improves the intracorporal temperature of chamber, prevents and treats dissipating for cavity inner temperature
It loses, is conducive to the rapid raising of temperature, while high temperature can be reduced and improved service life to the damage of external device.
Vacuum system includes vacuum meter, molecular pump, mechanical pump, sensor, vacuum tube, bellows and operated pneumatic valve, molecule
Pump and mechanical pump are arranged in parallel and connect with vacuum tube, and bellows and vacuum meter, the other end of vacuum tube are equipped among vacuum tube
It is connected to the bottom of cavity, operated pneumatic valve is equipped on molecular pump and mechanical pump, is connected with sensor on molecular pump and mechanical pump
Connect, sensor by electric-control system control, operated pneumatic valve be used to close and open with extraneous ventilation, first by pneumatic operated valve when use
Door is closed, and starts molecular pump or mechanical pump or molecular pump vacuumizes cavity by vacuum tube, by the intracorporal air of chamber
Discharge stops extracting when vacuum degree reaches 10-5torr, and maintains vacuum degree, adjustable using different as needed
Pump uses mechanical pump when needing low vacuum, when needing high vacuum to be extracted using molecular pump.
Electric control part includes touch-screen display 26, temperature transmitter, temperature controller, pressure regulator and Switching Power Supply, group
At the control unit of a whole set of electric-control system, temperature transmitter, temperature controller, pressure regulator and Switching Power Supply are shown with touch screen
Device 26 connects, and temperature transmitter and temperature controller are connect with heating device 10, and temperature transmitter is for adjusting to Welder
Part heats the temperature for being, temperature when temperature controller welds needed for controlling as needed；Pressure regulator is controlled to a vacuum pump, pressure regulation
Device is mainly used for the output power of the intracorporal air pressure of adjusting cavity, mechanical pump and molecular pump.
Frame 27 is made of aluminium alloy extrusions, and top is equipped with work top, and work top is quartzy stone table board；Driving device
For stepper motor, 27 lower end of frame is additionally provided with the universal wheel 28 of strap brake, facilitates the movement of bonding machine.
A kind of vacuum welding picks and its welding procedure, including following operating procedure:
(1) workpiece to be processed is first ready to by preparation, and carries out cleaning 20-25 using ultrasonic wave to workpieces processing surface
Minute；
(2) workpiece after cleaning is dry, soldering paste is smeared in workpiece weld after drying；
(3) it is put into after the completion of smearing and is toasted in workpiece and the oven that is placed at 200 DEG C, keep soldering paste dry and to welding
Workpiece is positioned；
(4) welding hatch door is opened, objective table is moved up using driving device from the top of heating cavity, workpiece is placed on loading
It is put on platform neatly, then moves down and be put into the heating cavity that vacuum welding picks, close hatch door；
(5) pumped vacuum systems is opened to vacuumizing in heating chamber, reaches vacuum requirement, opens heating device 10, is started pair
Workpiece is welded；
(6) cooling system is opened after the completion of welding, while to air is poured in heating chamber, opening cabin when consistent with ambient pressure
Door, welding workpiece of taking detect quality, complete entire welding operation.
The preferred embodiments of the invention are described in detail above, it is apparent that the present invention is not limited in above-mentioned embodiment party
Case.Within the scope of the technical concept of the present invention, a variety of equivalent variations, these equivalent changes can be carried out to technical solution of the present invention
Type all belongs to the scope of protection of the present invention.In addition, it is necessary to which explanation, each described in above-mentioned specific embodiment
Technical characteristic separately can be independently combined, as long as it is within the scope of the technical concept of the present invention.
Claims (10)
1. a kind of vacuum welding picks and its welding procedure, which is characterized in that including frame, cooling system, pumped vacuum systems, lifting
Carrier system, heating system and electric-control system, the frame left are equipped with pumped vacuum systems, and right side is equipped with electric-control system,
Centre is equipped with cooling system, Lifting carrying system and heating system, the cooling system, pumped vacuum systems, Lifting carrying system
With heating system by the control of electric-control system；
The heating system includes shell, the first cover board, heating cavity and bottom plate, and the shell includes outside the first shell and second
Shell, first shell are flexibly connected with second housing and opposite can open to two sides, and the interior of shell is equipped with sheath, described
Cover top portion and bottom are respectively equipped with the first cover board and bottom plate, and the heating device is set on the outside of sheath, and the casing is set to
Outside heating cavity, the cavity upper and lower ends fixed connection and sealing plate；
The Lifting carrying system includes driving device, mechanical skid plateform, the first shaft, the second shaft and several objective tables, institute
It states the first shaft and is fixedly connected by beam rail with mechanical skid plateform, the shaft lower end is connected with the second shaft, institute by loop bar
The second shaft is stated equipped with objective table, the driving device is set to the top of mechanical skid plateform, and the driving device driving is mechanical sliding
Platform band dynamic object stage moves up and down, and is arranged with the second cover board on first shaft；
The cavity is hollow, and sealing plate is equipped with to be moved in through-hole with the matched through-hole of objective table, the objective table, and described second
Cover plate lid is closed on the sealing plate of cavity upper end, and second cover board and sealing plate junction are equipped with gasket.
2. vacuum welding according to claim 1 picks and its welding procedure, which is characterized in that the cooling system includes water
Sheath and sink set are covered, the water jacket sheath is set between shell and sheath, and the outer side of shell is set to and communicates with water jacket sheath
Pipe joint, the sink is sheathed on the outside of cavity both ends at sealing plate, is set to the sink communicated, institute in the sink set
It states sink and communicates or be independently arranged with water jacket protective case, put on outside the sink equipped with water inlet pipe and/or outlet pipe.
3. vacuum welding according to claim 2 picks and its welding procedure, which is characterized in that put on outside the sink and also set
There is pressure ring, both ends are additionally provided with retaining ring on the outside of the cavity, and the sealing plate is fastenedly connected by pressure ring and cavity；Outside described first
Shell is movably hinged with second housing or axis connects, and first shell and second housing opening junction are equipped with locking device, described
Locking device is buckle or bolt；Partition, the junction of first shell and second housing are equipped on the inside of first cover board
Equipped with side sealing strip, the both ends of the sheath are opposite to be equipped with reflector.
4. being picked according to the vacuum welding that Claims 2 or 3 office is stated and its welding procedure, which is characterized in that the outside of institute's shell
Upper end is equipped with water outlet pipe head, and lower end is equipped with water inlet pipe joint；The heating device is light radiation heater；The light radiation adds
Hot device is infrared halogen lamp tube, and the quantity of the infrared halogen lamp tube is 10-30；Bearing capacity≤80Kg of the objective table.
5. vacuum welding according to claim 4 picks and its welding procedure, which is characterized in that set above the objective table
There are several heat screens, the cavity lower end is additionally provided with support plate, and the support plate is equipped with mandril, if being equipped at the top of the mandril
Dry heat screen, each heat screen are separated by setting by spacer ring, and the vacuum tube is communicated with the bottom of cavity.
6. vacuum welding according to claim 1 picks and its welding procedure, which is characterized in that the cooling system includes collection
Hydrophone, hydraulic pressure switch and cooling-water machine, the water collector are connect with water outlet pipe head, and the water collector is connected by pipeline and cooling-water machine
It connects, the cooling-water machine is set to heating cavity bottom, and the cooling-water machine is equipped with hydraulic pressure switch, and the hydraulic pressure is opened to be connected with electric-control system
It connects.
7. vacuum welding according to claim 1 picks and its welding procedure, which is characterized in that the vacuum system includes true
Empty meter, molecular pump, mechanical pump, sensor, vacuum tube, bellows and operated pneumatic valve, the molecular pump and mechanical pump are arranged in parallel
It is connect with vacuum tube, bellows and vacuum meter, the other end of the vacuum tube and the bottom of cavity is equipped among the vacuum tube
Portion is connected to, and is equipped with operated pneumatic valve on the molecular pump and mechanical pump, is connect with sensor on the molecular pump and mechanical pump,
Control of the sensor by electric-control system.
8. vacuum welding according to claim 1 picks and its welding procedure, which is characterized in that the electric control part includes touching
Panel type display, temperature transmitter, temperature controller, pressure regulator and Switching Power Supply are touched, the control unit of a whole set of electric-control system is formed,
The temperature transmitter, temperature controller, pressure regulator and Switching Power Supply are connect with touch-screen display, the temperature transmitter
It is connect with heating device with temperature controller, the pressure regulator is controlled to a vacuum pump.
9. being picked according to the described in any item vacuum weldings of claim 5-8 and its welding procedure, which is characterized in that the frame
It is made of aluminium alloy extrusions, top is equipped with work top, and the work top is quartzy stone table board；The driving device is stepping
Motor, the frame lower end are additionally provided with the universal wheel of strap brake.
10. vacuum welding according to claim 9 picks and its welding procedure, which comprises the following steps:
(1) workpiece to be processed is first ready to by preparation, and is cleaned to workpieces processing surface；
(2) workpiece after cleaning is dry, soldering paste is smeared in workpiece weld after drying；
(3) it is put into after the completion of smearing and workpiece is toasted, keep soldering paste dry and welding workpiece is positioned；
(4) welding hatch door is opened, is put the workpiece in vacuum welding picks, puts neat, closes hatch door；
(5) pumped vacuum systems is opened to vacuumizing in heating chamber, is reached vacuum requirement, is opened heating device, start to work
Part is welded；
(6) cooling system is opened after the completion of welding, while to air is poured in heating chamber, opening cabin when consistent with ambient pressure
Door, welding workpiece of taking detect quality, complete entire welding operation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811446727.7A CN109332959A (en) | 2018-11-29 | 2018-11-29 | A kind of vacuum welding picks and its welding procedure |
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| CN201811446727.7A CN109332959A (en) | 2018-11-29 | 2018-11-29 | A kind of vacuum welding picks and its welding procedure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111318847A (en) * | 2020-03-25 | 2020-06-23 | 荆门诺恒科技有限公司 | Aeroengine experiment pulley and welding process |
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| JPS6352764A (en) * | 1986-08-22 | 1988-03-05 | Ishikawajima Harima Heavy Ind Co Ltd | Vacuum brazing method for aluminum and vacuum brazing furnace |
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| CN103769712A (en) * | 2013-12-31 | 2014-05-07 | 吴江亿泰真空设备科技有限公司 | Vacuum brazing furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111318847A (en) * | 2020-03-25 | 2020-06-23 | 荆门诺恒科技有限公司 | Aeroengine experiment pulley and welding process |
| CN111318847B (en) * | 2020-03-25 | 2021-06-29 | 荆门诺恒科技有限公司 | Aeroengine experiment pulley and welding process |
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