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. Summary

The welded H beam is welded by two flanges which on the up and down side and a web in

the middle side ,the normal H beam welding line is composed of assembling

machine gantry type welding machine straightening machine and other machines.Thought the producing line can satisfy the technical requirements for welding the H beam,

it asks the more machines, and the production efficiency is low.

Assembling, welding and straightening integral machine is combines the assembling,

welding, straightening into one machine, reduce cost, save the installation space, improve

productivity.

. Main technical parameter

2.1 H beam spec. (Unit: mm)

flange plate width web plate height web thickness flange thickness

200!00 2002000 "20 "2#

2.2$ower %e&cluding welding power and wire feeder'

main transmission power ( k)

main driving rolling power 0.*# k)+

the flu& recycling power ( k)+2

Hydraulic pump power #.# k)

2.3)elding speed 0.(#-( mmin

2.4)orking pressure of hydraulic system/0$a

. Structure and feature

3.1 Structures:

Assembling, welding, straightening integral machine is composed of main welding

machine, straightening device, pre-centering device, driving roller, idle roller, driving

elevating roller, hydraulic system, and electric control system and welding power.

The main welding machine is composed of foundation, main transmission device, flange

and web clamping device, frame upper-press device, welding torch ad1ust device, feeding

device and electric conduction device.

achine base is composed of structural steel and plate steel, fi&ed with transmission

roller, flange and web clamping system, welding torch ad1ust device, wire feeding device,

electric conduction device and so on. elow the base fi&ed with transmission shaft, chain

wheel cycle chain.

ain transmission system is drove by one speed reducer with chain wheel cycle chain and

transmission shaft, making the main transmission roller and the lower straightening wheel

rotating, it adopts frequency control of speed and can ad1ust the speed within 0.(#-

(mmin.

3lange and web clamping device is the key component to the precision of assembling and

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welding, it adopts hydraulic motor to drive two sets of worm reducer, each worm reducer

drives one set of gear transmission device which drives of two symmetrical flange and

web clamping device, thus, the forward and reverse screw and nut in the symmetrical

flange and web clamping device can push the flange and web of the work piece to center

of the main machine.

3rame upper-press device adopts oil cylinder to push the upper-roller to clamp the work

piece, the moving of the elevating beam adopts the pulley guide rail structure which can

make the moving more stable.

)elding torch ad1ust device is mainly used to ad1ust the position of two welding torches,

so that the welding torch can aim the welding seam accurately, two torches can staggered

at a fi&ed distance an the same time %about /0mm'. The oil cylinder on the welding torch

which is fi&ed #4can control the torch to approach or leave the welding seam.

)ire feeding device is used to fi& wire reel, and feed wire into the welding torch. A&le of

wire reel has the function of damping to prevent the welding stick getting debouched.

5lectric conduction is placed below the main transmission roller, it can connecting the

welding loop to prevent the welding current from burning the bearing.

The assistant straightening device is fi&ed in front of the machine to straighten the flange.

6t is composed of upper straightening roller, lower straightening roller, and flange

centering device. The upper roller uses hydraulic cylinder to push eccentric shaft and

clamp the web of work piece. The lower straightening roller is drove by the main chain.

7pper straightening device can move according to the width of the flange, the screw and

the nut can fi& moving position through the position displayer.

$re-centering device is used to centering the flange and web before assemble, which is

placed on the input end. 6t adopts oil cylinder to push the relevant flange and web turning

arm, and make the guiding wheel to toward the surface of work piece.

6nput and output ends of the main machine are equipped with different input rollers. 8n

the input ends is equipped with 2pcs of driving roller and 2pcs of idle roller. 8n the output

ends is equipped with 2pcs of elevating driving roller and 2pcs of idle roller. 9riving

elevating roller can still hold the work piece after the deformation.Hydraulic system controls the elevating of upper-pressure cylinder, the elevating and

clamping of oil cylinder, forward and reverse turning of the flange and web motor, moving

of welding torch, the elevating of oil cylinder, clamp and tense of straightening assistant

and straightening cylinder. The clamp and tense of pre-centers oil cylinder.

3.2 Structure features

(.2./ The main body of assembling and welding adopts automatic cantering structure

which is transferred by hydraulic motor gear of new type assembling machine, improving

the reliability and precision of transmission.

(.2.2 The au&iliary body of straightening adopting hydraulic cylinder driving eccentric

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shaft structure makes sure compact structure, big strengthening force, and convenient

ad1ustment.

(.2.( The output end adopts active lift roller, in order to adapt the transmitting work piece

after welding deformation.

.Operatin and !r"in#

4.1$late blank of the flange is put on the input roller by travelling cart, starting :flange

fasten; switch of the pre-centering system, making the guide pulley of the flange and the

edge of the flange contacted.

4.2$late blank of the web is put on the flange, starting :web fasten; switch of the pre-

centering system, making the guide pulley of the web and the edge of the web contacted.

4.3 $ress down :main roller forward; button, the web and the flange forward the

strengthening au&iliary position at the same time. The web and the flange end are aligned

by manual. %8r can be aligned by the flange guide roller of straighten device'

4.4$ress down :clamp flange; and :clamp web; buttons to fasten the work-piece.

4.$$ress down :loosen flange; and :loosen web; buttons to loosen the work piece a litter.

4.%5nd of flange and web is aligned by manual. %8r can be aligned by the flange guide

roller of straighten device'

4.&$ress down :clamp flange; and; clamp web; buttons again to fasten the work piece.

4.'Ad1usting the welding gun position, starting welding gun moving button, and making

the welding gun approach the welding seam.

4.$ress down :automatic circle; button, and the electric control system will start to work

according to the preset program, starting automatic spot welding forming. )hen the end

of the steel breaks away the flange fastening pulley, the upper pressure roller will loosen

automatic. And this moment turn the :automatic circle; to :manual operation;, finishing

the last spot welding about *00mm distance.

tes:

/' efore the work piece leaves the clamping device, you should switch the :manual

operation; mode, in order to avoid dangerous.

2)hen workpiece

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2. 3orbidden operating the machine not according to the rules, ite which is e&ceeding the machine capacity.

(. All the rotating and sliding parts should be added with lubricating oil, all the screws

should be tight.

. 6n daily working, machine should be tested first, and start to work after machine runs

well.

#. ?eep the machine clean, nothing can be put on the machine. And no person stands

before the machine during work. @ot to start the machine without right operator.

$.2 Maintenance pints

/. heck the machine in a fi&-cycle, when the components are not well, please changes it

in time.

2. The maintenance of hydraulic system refers to the hydraulic drawing. ?eep the

hydraulic oil clean, and the oil position is at the 2( of oil ruler. Air filter of the hydraulic

system should be kept clean, avoid the block up inside.

$.3 +isassemble and transprt

efore transport the hydraulic system, all the related pipes should be disassembled, and

the oil holes should be closed.

$.4 Use instructin:

/. Hydraulic oil @8.B @(2

2. 8il positionB 2( of oil ruler

(. 7se /20 mesh strainer when fill the oil to the tank.

. hange the oil, please noteB

/'. the oil should be changed when the first ( months, and after then, it will be " months to

change the oil. )hen under continuous working and high-temperature, dusty environment,

please shorten the cycle time for change the oil.

2'. $ull out all the oil and clean the tanks before add new oil into it.

$.$ Hydraulic system pressure ad,usted e-planatin

Cystem pressure

$late thickness@umber

$/ a& pressure $A $2 Cecond

pressure

/ D"/0 # 2(

2 D/020 #" (

@otesB $/ sets pressure of overflow valve. $2 sets pressure of reducing valve.

$.% earin# parts.

/. HEFA20.0-0G upper roller

2. HEF/020.0/.0/-/( main drive roller

(. HEF/020.0/.0/./0-00 driven roller of main machine

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. HEF/020.0/.0/.0G-00 idle roller of main machine

#. HEF/020.02.0-00 driven roller of conveyor

". HEF/020.0(.0/-00 idle roller of conveyor

*. HEF/020.0/.0#-/G guiding roller of web

!. HEF/020.0/.0!-0 guiding roller of flange

G. HEF/#.//-/ guiding roller of draw-bar bo&

$.& /earin#s

@o odel @ame ty 6nstallation parts

/ IT2*"-/GG 9eep groove ball bearing "(0"-2E 2! 3lange and web clamp roller

2 IT2*"-/GG 9eep groove ball bearing "20G-2E (" Iuiding roller of draw-bar bo&

( IT2*"-/GG 9eep groove ball bearing "2/0-2E " Transition of chain wheel

IT2*"-/GG 9eep groove ball bearing "20* ! Transmission of web plate

# IT2*"-/GG 9eep groove ball bearing "2/0 ! Iuiding wheel of door-frame

" IT2*"-/GG 9eep groove ball bearing "2/" /2 9raw-bar bo&

* IT2!!-/GG Celf-aligning roller bearing 222/0 Cupport roller of main machine

! IT2!!-/GG Celf-aligning roller bearing 222/ 2 Transmission a&le

G IT2!!-/GG Celf-aligning roller bearing 222/* 2 ain transmission roller

/0 IT2!!-/GG Celf-aligning roller bearing 2220! /0 Transmission of flange and web

plate

// IT2!!-/GG self-aligning roller bearing

222/2)((

2 7pper roller

/2 IT2G*-/GG conical roller bearing (200* 20 transmission of flange and web

plate

/( 7$2/0 unit bearing assembly ! convey

$.' Hydraulic sealin# element

@o odel @ame ty 6nstallation parts

/ FG!2-** 8bturating ring assembly /! (" Iet in and out of oil

2 FG!2-** 8bturating ring assembly / ( 3or pressure tapping connecting

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( I2(#-*" 8-ring packing /"J2. ! 7sed for anifold block

FG!2-** obturating ring assembly(( 2 used for oil suction pipe

# HI-((#-"" K& type polyurethane Ceal ring 92 /00 2 upper pressure oil cylinder

" HI-((#-"" K& type polyurethane Ceal ring d#0 /

* I(#2./-!2 8 -type rubber Ceal ring d/ #0J(./ 2

! I(#2./-!2 8 -type rubber Ceal ring 92 /00J#.* 2

G I(#2./-!2 8 -type rubber Ceal ring d/ "0J#.* /

/0 dust ring d#0 /

// HI-((#-"" K& type polyurethane Ceal ring 92 !0 oil cylinder of draw-bar bo&$s.2 sets of oil cylinder

/2 HI-((#-"" K& type polyurethane Ceal ring d# 2

/( I(#2./-!2 8 -type rubber Ceal ring d(2J(./ 2

/ I(#2./-!2 8 -type rubber Ceal ring d!0J(./

/# I(#2./-!2 8 -type rubber Ceal ring d"0J(./ 2

/" dust ring d# 2

/* HI-((#-"" K& type polyurethane Ceal ring 92 0 ! oil cylinder of cutting torch

$sB sets of oil cylinder/! HI-((#-"" K& type polyurethane Ceal ring d22

/G I(#2./-!2 8 -type rubber Ceal ring d22J(./ !

20 I(#2./-!2 8 -type rubber Ceal ring 92 0J(./ !

2/ HI-((#-"" K& type polyurethane Ceal ring 92 #0 ! support the oil cylinder

$s. sets of oil cylinder22 HI-((#-"" K& type polyurethane Ceal ring d2!

2( I(#2./-!2 8 -type rubber Ceal ring d2!J(./ !

2 I(#2./-!2 8 -type rubber Ceal ring 92 #0J(./ !

$. 0mmn errrs and slutins

/. Chaft of web centering

auseB transmission screw not mi& up

ColutionB disboard the gear cover of transmission screw, loosen transmission screw and

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swelling cover, move transmission screw, ad1ust guiding wheel, intensify swelling cover,

fit on gear cover.

2. )eb tilt, out of plumb

ause /lamping wheel of flange and web and the center line of the upper and down

roller are not in the same plane.

Colution/B ad1ust the clamping wheel

ause2B plate is thin= pressure of the upper roller is more

Colution2B smaller the pressure of upper oil cylinder

(. Trouble removal for welder according to operation manual.

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