CN110449695A - The flange welding technique that main shaft is rotated by 90 ° - Google Patents
The flange welding technique that main shaft is rotated by 90 ° Download PDFInfo
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- CN110449695A CN110449695A CN201910543285.6A CN201910543285A CN110449695A CN 110449695 A CN110449695 A CN 110449695A CN 201910543285 A CN201910543285 A CN 201910543285A CN 110449695 A CN110449695 A CN 110449695A
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- 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
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- 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
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
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- 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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses the flange welding techniques that main shaft is rotated by 90 °, it include: pre-splicing, preheating, 90 degree of rotations are fixed, the processing steps such as welding and tempering, and through above-mentioned technique after major axis horizontal welding improvement 90 degree of vertical weldings of Ei, and then combine the location improvement of welding gun solder joint, so that the more convenient adjusting of the operation of welding gun, the position of groove is more easier to precisely align simultaneously, furthermore, after processing of the present invention also by carrying out timely effect to the welding slag of per pass welding bead in welding process and coating, improve the total quality of weld seam, and rear one of welding bead would not have disturbing for welding slag and coating in the welding process.
Description
Technical field
The present invention relates to the flange welding techniques that flange welding technical field more particularly to main shaft are rotated by 90 °.
Background technique
Traditional axis class welding is all workpiece level to weld, since there is a groove of 18mm in two large flange faces, but due to
18mm size is less than welding gun protective case, so welding gun can only reach groove face, causes the loss of dry extension of electrode welding current big,
And fusion penetration also can not guarantee；
Secondly, do not have in traditional welding procedure thoroughly effectively at welding bead welding slag and coating carry out thoroughly it is clear
One of basis welded after when managing, and being welded because of first one, the behaviour for timely and effectively welding bead not being carried out out in this way
Work and equipment, can seriously affect the welding quality of rear one of weld seam, and then influence the effect entirely finally welded；
Again, in welding process, in former roads welding technique it is most important, therefore for solder joint position that welding gun is chosen
Set most important, but the design of current welding gun solder joint is reasonable not enough, causes the fastness of the commissure of welding poor.
Summary of the invention
In view of the above problems, the present invention is intended to provide the flange welding technique that main shaft is rotated by 90 °, the technique from
After major axis horizontal welding improves 90 degree of vertical weldings of Ei, and then the location improvement of welding gun solder joint is combined, so that the operation of welding gun is more
Add and facilitate adjusting, while the position of groove is more easier to precisely align, furthermore, the present invention is also by welding per pass in welding process
After the welding slag and coating in road carry out the processing of timely effect, the total quality of weld seam is improved, and rear one of welding bead was welding
There would not be disturbing for welding slag and coating in journey.
To achieve the goals above, the technical solution adopted in the present invention is as follows:
The flange welding technique that main shaft is rotated by 90 °, comprising the following steps:
S1: pre-splicing
Size flange is covered on main shaft according to drawing requirement, and fixed in non-groove side point solid welding；
S2: preheating
The main shaft that point welds is preheated with baking oven, 230 DEG C of temperature, 1 hour is kept the temperature, until 150~200 DEG C of workpiece；
S3: 90 degree of rotation installations of main shaft
Preheated main shaft, handrail axis are lifted to welding workstation, it is by 90 degree of fixed devices that main shaft is vertically solid
It sets；
S4: welding
First of welding: 13~17mm of electrode extension；45 ± 5 ° of angle of welding gun；It is axis and flange that welding wire, which is directed at position,
Fit clearance at；
Second welding: 13~17mm of electrode extension；45 ± 5 ° of angle of welding gun；It is first of weldering that welding wire, which is directed at position,
The outside welding toe of seam, in error 1.5mm；
Third road welding: 13~17mm of electrode extension；45 ± 5 ° of angle of welding gun；Welding wire is directed at position as second weldering
The inside welding toe of seam, in error 1.5mm；
4th welding: 13~17mm of electrode extension；45 ± 5 ° of angle of welding gun；Welding wire is directed at position as the weldering of third road
The inside welding toe of seam, error 1.5mm；
5th welding: 13~17mm of electrode extension；45 ± 5 ° of angle of welding gun；It is the 4th weldering that welding wire, which is directed at position,
The outside welding toe of seam, in error 1.5mm；
6th welding: 13~17mm of electrode extension；45 ± 5 ° of angle of welding gun；It is the 5th weldering that welding wire, which is directed at position,
The inside welding toe of seam, in error 1.5mm；
S5: tempering destressing
625 ± 25 DEG C of tempering temperature, furnace cooling after 2~3h is kept the temperature, eliminates internal residual stress；
S6: non-destructive testing.
Preferably, it is Φ 1.2mm that described first, which is welded to the selected wlding size of the 6th welding,.
Preferably, the current strength of first of welding is 300A, the current strength of second welding is 280A, the
Three current strength for being welded to the 6th welding are 270A.
Preferably, described first voltage strength for being welded to the 5th welding is 27V, the 6th welding
Voltage strength is 26V.
Preferably, first of welding, second are welded, the 5th welds, the speed of welding of the 5th welding is equal
For 50mm/s, the speed of welding of the third road welding and the 6th welding is 60mm/s.
Preferably, needing 100~180 DEG C of interlayer temperature of control in welding process.
Preferably, described 90 degree fixed devices include plumb pile, the automatic impaction device being fixed on plumb pile and set
The lower binding clasp on welding workstation is set, the lower binding clasp is correspondingly arranged up and down with the automatic impaction device, automatic impaction
Device can freely up and down be moved by the control of control module on the plumb pile.
Preferably, the bottom of the main shaft is placed in lower binding clasp by mechanical arm, top passes through automatic impaction
Device automatic impaction realizes 90 degree of rotations installation of main shaft.
Preferably, further including welding bead cleanup step, the welding bead cleanup step is to be welded by cleaning equipment in per pass
After the welding slag and coating of commissure are purged.
Preferably, the cleaning equipment is arranged on plumb pile, including cleaning unit one and cleaning unit two, it is described clear
Reason unit one and the cleaning unit two are rotatably arranged on the plumb pile, and power resources are cylinder, and described clear
Reason unit one and the cleaning unit two include that gas rushes cleaner and frictional cleaning device, cleaning unit one and clear up unit two from
The two sides of weld seam, which move toward one another, to be cleared up, and combines frictional cleaning to thoroughly remove welding slag and coating while gas is rushed and cleared up.
The beneficial effects of the present invention are:
Firstly, major axis horizontal welding is improved to vertical welding by the present invention, traditional axis class welding is all workpiece level to weld
It connects, but we rotate using by 90 degree of main shaft, vertical welding.Since there is the groove of 18mm in two large flange faces, vertical rear welding gun
Angle and alignment groove bottom is more easily adjusted.But since 18mm size is less than welding gun protective case, so welding gun can only reach slope
Discharge surface causes the loss of dry extension of electrode welding current big, so having determined under the premise of guaranteeing fusion penetration by repeatedly attempting
Present welding parameter；
Secondly, in order to keep main shaft more stable 90 degree of position, therefore realized by 90 degree of fixed devices, because if
The verticality in 90 degree of welding processes of main shaft is not improved, then will affect the welding track of welding gun, and then influence the quality of weld seam,
Therefore, after using above-mentioned 90 degree fixed devices, higher verticality can be remained during main shaft welding；
Again, the present invention is in order to improve the welding quality of each layer of welding bead in multiple tracks welding bead, therefore improved cleaning is used to set
It is standby that efficient cleaning in time is carried out to one of welding bead before being welded so that it is rear weld together when welding surface on free from admixture, into
And achieve the purpose that improve weldquality.
Detailed description of the invention
Fig. 1 is the welding figure of main shaft of the present invention.
Fig. 2 is the cross-sectional view in the face C-C in Fig. 1.
Fig. 3 is the solder joint schematic diagram of welding gun.
Fig. 4 is the schematic diagram of welding equipment rotary table of the present invention.
Fig. 5 is the schematic top plan view of cleaning equipment of the present invention.
Fig. 6 is the side schematic view of DOCK LEVELER of the present invention.
Fig. 7 is the welding point penetrant inspection report of welding procedure of the present invention welding.
Fig. 8 is the welding point metal lographic examination result using welding procedure of the present invention welding.
Fig. 9 is the test report using the welding point of welding procedure of the present invention welding.
Wherein: 1- main shaft, the small flange of 2-, 3- large flange, 10- automatic impaction device, 101- pressure head structure, 102- height tune
Save plate, 103-U shape plate, 11- plumb pile, depressor under 12-, 121- compressor arm, 122- compression cylinder, 123- arc panel, 13- limit
Circle of position disk, 14- clear up unit one, and 15- clears up unit two, and 16- is socketed annulus, 17- connecting rod, 18- compressed air pipe, 19- biography
It takes offence cylinder, 20- arc pipe, 21- high temperature resistant steel brush.
Specific embodiment
In order to make those skilled in the art be better understood on technical solution of the present invention, with reference to the accompanying drawing and
Embodiment is further described technical solution of the present invention.
Embodiment: referring to the flange welding technique that shown in attached drawing 1-3, main shaft 1 is rotated by 90 °, comprising the following steps:
S1: pre-splicing
Large flange 3, small flange 2 are covered on main shaft 1 according to drawing requirement, and fixed in non-groove side point solid welding；
S2: preheating
The main shaft 1 that point welds is preheated with baking oven, 230 DEG C of temperature, 1 hour is kept the temperature, until 150~200 DEG C of workpiece；
S3: 190 degree of rotation installations of main shaft
Referring to shown in attached drawing 4,6, preheated main shaft 1, handrail axis are lifted to welding workstation, fixed by 90 degree
Device vertically fixes main shaft 1；
Described 90 degree fixed devices include plumb pile 11, the automatic impaction device 10 being fixed on plumb pile 11 and setting
Lower binding clasp on welding workstation, the lower binding clasp are correspondingly arranged with about the 10 automatic impaction device, automatic impaction
Device 10 can freely up and down be moved by the control of control module on the plumb pile 11；
The bottom of the main shaft 1 is placed in lower binding clasp by mechanical arm, and top is automatic by automatic impaction device 10
It compresses, realizes 90 degree of rotations installation of main shaft 1；
Setting servo-driver and servo motor in automatic impaction device 10, servo motor is under the drive of servo-driver
It is moved to the top of main shaft 1, is fixed the top of main shaft 1 by the pressure head on automatic impaction device 10；
Pressure head structure 101 is the pyramidal structure of lower ending opening, and pyramidal structure is fixed on automatically by DOCK LEVELER 102
The top of main shaft 1 is stuck in pyramidal structure by the bottom end of 10 ontology of compactor when pressure head compresses, and position is fixed unique, simultaneously
The height of pressure head can also be adjusted by the adjustment effect of DOCK LEVELER 102, and then expands the use scope of pressure head, adapted to
The welding requirements of different size main shafts 1；
DOCK LEVELER 102 is one block of steel plate, and regulating tank is provided in steel plate, and the bottom of regulating tank penetrates through its bottom edge, top
It does not penetrate through, the top of pressure head is welded with U-board 103, and U-board 103 is sticked into regulating tank and be can move up and down, and passes through limit
Bolt limits the height of U-board 103, and then achievees the purpose that adjust fall head；
Lower compactor 12 includes that compression plate and a circle compressor arm 121, every compressor arm 121 are controlled by compression cylinder 122
It makes, a circle compressor arm 121 is enclosed around main shaft 1 one to be arranged, and the tilt angle of every compressor arm 121 is 30-45 degree, and every compresses
The top of bar 121 is respectively and fixedly provided with compactor；
Each 122 bottom of compression cylinder is welded with sliding block, and guide rail corresponding with each sliding block is provided on compression plate,
Movement of the sliding block in guide rail achievees the purpose that clamp feeding and discharging；
Compactor is arc panel 123 identical with 1 radian of main shaft, and several pieces of arc panels 123 are formed and 1 outer diameter of main shaft after combining
The clamping chamber to match can be close to 1 outer wall of main shaft when clamping；
123 inner wall of arc panel also one layer of resin material resistant to high temperature of fixed bonding improves main shaft 1 and exists in manufactured friction pad
Fixed effect in lower compactor 12；
Main shaft 1: before clamping, being first placed in lower compactor 12 by the course of work by manipulator, opens compression cylinder 122
Drive compressor arm 121 to close to the movement of the direction of main shaft 1, when a circle compressor arm 121 compresses main shaft 1, cylinder is static not
Dynamic, manipulator is separate, starts automatic automatic impaction device 10, and mobile pressure head selects according to the actual situation to the position of 1 upper end of main shaft
Selecting property adjusts the position of DOCK LEVELER 102, so that the upper end of main shaft 1 is stuck in the inside of pyramidal structure just, entirely welds in the later period
Position is unique in termination process, realizes preferable verticality；
S4: welding
First of welding: 13~17mm of electrode extension；45 ± 5 ° of angle of welding gun；It is axis and flange that welding wire, which is directed at position,
Fit clearance at；
Second welding: 13~17mm of electrode extension；45 ± 5 ° of angle of welding gun；It is first of weldering that welding wire, which is directed at position,
The outside welding toe of seam, in error 1.5mm；
Third road welding: 13~17mm of electrode extension；45 ± 5 ° of angle of welding gun；Welding wire is directed at position as second weldering
The inside welding toe of seam, in error 1.5mm；
4th welding: 13~17mm of electrode extension；45 ± 5 ° of angle of welding gun；Welding wire is directed at position as the weldering of third road
The inside welding toe of seam, error 1.5mm；
5th welding: 13~17mm of electrode extension；45 ± 5 ° of angle of welding gun；It is the 4th weldering that welding wire, which is directed at position,
The outside welding toe of seam, in error 1.5mm；
6th welding: 13~17mm of electrode extension；45 ± 5 ° of angle of welding gun；It is the 5th weldering that welding wire, which is directed at position,
The inside welding toe of seam, in error 1.5mm；
Further, it is Φ 1.2mm that described first, which is welded to the selected wlding size of the 6th welding,；
Further, the current strength of first of welding is 300A, and the current strength of second welding is 280A, the
Three current strength for being welded to the 6th welding are 270A；
Further, described first voltage strength for being welded to the 5th welding is 27V, the 6th welding
Voltage strength is 26V；
Further, first of welding, second welding, the 5th welding, the speed of welding of the 5th welding are equal
It is 50, the speed of welding of the third road welding and the 6th welding is 60；
Further, 100~180 DEG C of interlayer temperature of control is needed in welding process；
Welding gun need 2~3 will be robbed clearly in welding process, and the weldering height of third road welding bead and the 6th welding bead needs > 8mm,
He is 15mm；
Dry extension of electrode degree in welding process: 15mm ± 2mm；The electric current type of welding is direct current reversed polarity；
Further include welding protection gas in welding process, is 80%Ar+20%CO2, gas flow 10-15L/min, receipts
Arc current 170A receives arc voltage 17V；
It further include welding bead cleanup step particularly, the welding bead cleanup step is to pass through cleaning referring to shown in attached drawing 4,5
Equipment is purged the welding slag and coating of commissure after per pass welds.
Specifically, the cleaning equipment is arranged on plumb pile 11, including cleaning unit one and cleaning unit 2 15, it is described
Cleaning unit one and the cleaning unit 2 15 are rotatably arranged on the plumb pile 11, and power resources are drive cylinder
19, and the cleaning unit one and the cleaning unit 2 15 include that gas rushes cleaner and frictional cleaning device, clear up unit
One and cleaning unit 2 15 move toward one another and cleared up from the two sides of weld seam, combine frictional cleaning that will weld while gas is rushed and cleared up
Slag and coating thoroughly remove；
The cleaning unit one and cleaning unit 2 15 specifically include socket annulus 16, the connecting rod 17 of middle control structure, transmission
Cylinder 19 and cleaning portion, socket annulus 16 are socketed on plumb pile 11, and connecting rod 17 is fixedly connected on socket annulus 16 and cleaning
Between portion, the driving end of drive cylinder 19 is connect with 17 side of connecting rod, and tail portion passes through linking arm and corresponding cleaning unit
One connects with cleaning unit 2 15；
The cleaning unit one is located at 2 15 top of cleaning unit, the setting limit disk on the plumb pile 11
13, the size of limit disk 13 is greater than the size of socket annulus 16, and the cleaning sliding of unit one is located on limit disk 13, specifically
Round sliding rail is provided on limit disk 13, the socket annulus 16 of cleaning unit one is slidably connected in sliding rail, clears up unit two
15 16 sizes of socket annulus for being located on cleaning unit one, and clearing up on unit 2 15 are less than cleaning unit one, clear up unit two
15 17 end of connecting rod is also connected with lower extension, because cleaning unit 2 15 is located at the reason of one top of cleaning unit, but again
The cleaner for guaranteeing cleaning unit one and clearing up both units 2 15 end is in same level, therefore need to set under this
Extension extends downwardly into the cleaning portion cleared up on unit 2 15 with the cleaning portion of cleaning unit one on the same line；
The connecting rod 17 of each hollow structure is connect with compressed air pipe 18, and compressed air pipe 18 and air compressor machine connect
It connects, is supplied by compressed air pipe 18 to cleaning portion, under the action of high pressure draught, spray compressed air outward from cleaning portion
Processing is carried out gas to the welding slag of welding portion；
Each cleaner includes hollow arc pipe 20 and the high temperature resistant steel brush 21 for being fixed on 20 inside of arc pipe,
Steel brush capillary is close, handles thorough welding slag to remaining not easy-to-use gas punching by high temperature resistant steel brush 21 and coating carries out at friction
Reason reaches final effective processing to welding slag and coating in combination with gas punching processing, while the swiped through welding bead surface of steel brush has
Some roughness are more advantageous to the progress of rear welding together；
Connecting rod 17, arc pipe 20 are all made of steel resistant to high temperature and are made；
Operating process: the flange position on the position and 90 degree of main shafts 1 of limit disk 13 is generally corresponding to be arranged, in every welding
When complete one of welding bead, start one of drive cylinder 19, cleaning unit one driven to move, close to welding position, can be used and
Cleaning unit 2 15 interlocks, welding bead is cleared up in the reciprocating motion at interval, receives the double of gas punching and friction in scale removal process
It clears up again, achievees the purpose that thorough cleaning residue, be conducive to the welding quality that auxiliary improves weld seam；
S5: tempering destressing
625 ± 25 DEG C of tempering temperature, furnace cooling after 2~3h is kept the temperature, eliminates internal residual stress；
S6: non-destructive testing, the welding point form technical term of flange welding are the corner joints of plate and stick, are same
Form, therefore indicated in the accompanying drawings with technical term stick plate corner joint.
As shown in fig. 7, for using the welding point penetrant inspection report of welding procedure of the present invention welding.
As shown in figure 8, for using the welding point metal lographic examination result of welding procedure of the present invention welding.
As shown in figure 9, for using the test report of the welding point of welding procedure of the present invention welding.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. the flange welding technique that main shaft is rotated by 90 °, which comprises the following steps:
S1: pre-splicing
Size flange is covered on main shaft according to drawing requirement, and fixed in non-groove side point solid welding；
S2: preheating
The main shaft that point welds is preheated with baking oven, 230 DEG C of temperature, 1 hour is kept the temperature, until 150~200 DEG C of workpiece；
S3: 90 degree of rotation installations of main shaft
Preheated main shaft is lifted to welding workstation, is vertically fixed main shaft by 90 degree of fixed devices；
S4: welding
First of welding: 13~17mm of electrode extension；45 ± 5 ° of angle of welding gun；Welding wire alignment position is matching for axis and flange
Close gap location；
Second welding: 13~17mm of electrode extension；45 ± 5 ° of angle of welding gun；It is first of weld seam that welding wire, which is directed at position,
Outside welding toe, in error 1.5mm；
Third road welding: 13~17mm of electrode extension；45 ± 5 ° of angle of welding gun；It is second weld seam that welding wire, which is directed at position,
Inside welding toe, in error 1.5mm；
4th welding: 13~17mm of electrode extension；45 ± 5 ° of angle of welding gun；It is third road weld seam that welding wire, which is directed at position,
Inside welding toe, error 1.5mm；
5th welding: 13~17mm of electrode extension；45 ± 5 ° of angle of welding gun；It is the 4th weld seam that welding wire, which is directed at position,
Outside welding toe, in error 1.5mm；
6th welding: 13~17mm of electrode extension；45 ± 5 ° of angle of welding gun；It is the 5th weld seam that welding wire, which is directed at position,
Inside welding toe, in error 1.5mm；
S5: tempering destressing
625 ± 25 DEG C of tempering temperature, furnace cooling after 2~3h is kept the temperature, eliminates internal residual stress；
S6: non-destructive testing.
2. the flange welding technique that main shaft according to claim 1 is rotated by 90 °, it is characterised in that: first of welding
The wlding size selected to the 6th welding is Φ 1.2mm.
3. the flange welding technique that main shaft according to claim 2 is rotated by 90 °, it is characterised in that: first of welding
Current strength be 300A, second welding current strength be 280A, third road be welded to the 6th welding current strength
For 270A.
4. the flange welding technique that main shaft according to claim 3 is rotated by 90 °, it is characterised in that: first of welding
Voltage strength to the 5th welding is 27V, and the voltage strength of the 6th welding is 26V.
5. the flange welding technique that main shaft according to claim 4 is rotated by 90 °, it is characterised in that: first of weldering
It connects, second welds, the 5th welds, the speed of welding of the 5th welding is 50mm/s, the third road welding and the 6th
The speed of welding of road welding is 60mm/s.
6. the flange welding technique that main shaft according to claim 5 is rotated by 90 °, it is characterised in that: need to control in welding process
100~180 DEG C of interlayer temperature processed.
7. the flange welding technique that main shaft according to claim 1 is rotated by 90 °, it is characterised in that: described 90 degree fixed dresses
It sets including plumb pile, the automatic impaction device being fixed on plumb pile and the lower binding clasp being arranged on welding workstation, it is described
Lower binding clasp is correspondingly arranged up and down with the automatic impaction device, and automatic impaction device can be described vertical by the control of control module
It is freely up and down moved in stake.
8. the flange welding technique that main shaft according to claim 7 is rotated by 90 °, it is characterised in that: the bottom of the main shaft
It is placed in lower binding clasp by mechanical arm, 90 degree of rotations peace of main shaft is realized by automatic impaction device automatic impaction in top
Dress.
9. the flange welding technique that main shaft according to claim 1-7 is rotated by 90 °, it is characterised in that: further include
Welding bead cleanup step, the welding bead cleanup step be by cleaning equipment after per pass welding to the welding slag and medicine of commissure
Skin is purged.
10. the flange welding technique that main shaft according to claim 9 is rotated by 90 °, it is characterised in that: the cleaning equipment
It is arranged on plumb pile, including cleaning unit one and cleaning unit two, the cleaning unit one turn with the cleaning unit two
Dynamic to be arranged on the plumb pile, power resources are cylinder, and the cleaning unit one and the cleaning unit two wrap
It including gas and rushes cleaner and frictional cleaning device, cleaning unit one and cleaning unit two are moved toward one another from the two sides of weld seam and are cleared up,
Frictional cleaning is combined to thoroughly remove welding slag and coating while gas is rushed and cleared up.
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| CN113510424A (en) * | 2021-06-30 | 2021-10-19 | 宁波宏大电梯有限公司 | Assembly workbench for assembling chain wheel and main shaft and assembly method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113510424A (en) * | 2021-06-30 | 2021-10-19 | 宁波宏大电梯有限公司 | Assembly workbench for assembling chain wheel and main shaft and assembly method thereof |
| CN113510424B (en) * | 2021-06-30 | 2024-05-17 | 宁波宏大电梯有限公司 | Assembling workbench for assembling chain wheel and main shaft and assembling method thereof |
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| CN110449695B (en) | 2021-06-22 |
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