12m Length CNC Pipe Making Machine With Lincoln Welding Source

12m Length CNC Pipe Making Machine With Lincoln Welding Source

Application:

The equipment is suitable for internal and external welding of longitudinal welded pipe with equal diameter. The equipment includes a set of trolley and roller device, a set of internal welding equipment and a set of external welding equipment, during the working, we put the welding seam downward to weld inner first, after finish inner welding, we put the welding seam upward to weld external, then, in one working station, the pipe can finish inner and external welding.

1. Suitable Product in this equipment:

Pipe diameter: Φ500mm—Φ1000mm

Pipe thickness: 9mm--32mm

Pipe length: ≤12m

Pipe welding seam requirement: Eligible by ultrasonic testing

2. External welding machine structure:

It is comprised of mechanical system, welding system and controller system.

2.1 Welding system:

It includes: welding power supply, control box, wire feeding mechanism and control device, welding flux conveying and recovery device, welding gun and welding cable, wire and other parts.

The wire feeding mechanism: welding wire disc, welding wire disc bracket, wire feeding motor, wire wheel, straightening device, wire feeding tube, conductive rod, conductive mouth, conductive mouth frame etc..

The flux feeding and recovery device: it includes flux feeding pipe, pneumatic switch, flux recovery mouth, recovery tube, vacuum source, flux recovery bucket etc.

2.2. Mechanical system

It includes frame, welding head, and electric adjustment mechanism.

• Frame: the column and the mobile arm, height adjustment device, base, level adjustment device, etc.

2.3 external welding main functions:

During the pipe moves forward, it welds at the same time and welding trolley can quickly return.

with automatic feeding system, with wire straightening function; Wire feeding speed must be stable, and with wire feeding inching function.

with flux automatic feeding and recycle system.

with welding seam tracking device, and has the manual adjustment function.

The guide tip spacing and angle can be adjusted according to the requirements of the production process.

The cantilever has sufficient rigidity, with pulsating-resistance device during the welding process

The flux conveying pipe is provided with a switch, can automatically switch the flux.

The external welding machine frame height can be adjusted, and is provided with a locking mechanism.

with automatic arc, and arc extinguishing control system.

The welding system can meet the requirements of large current high-speed welding, the welding quality is stable, strong anti-interference ability.

2.4 Pipe external welding machine main technical parameter

• Welding method: submerged welding
• Pipe size: Φ500mm-Φ1000mm
• Welding wire quantity: single wire
• Welding wire diameter: Φ3.0mm-Φ4.0mm
• Welding source: DC
• Welding speed: 0.3-1.5m/min(stepless adjustable, constant output power)
• Welding trolley running speed:0.3m-6m/min(stepless adjustable)
• Welding currency: DC:1000A

• Welding gun adjustment range: 50mm(horizontal),150mm(vertical)

3. Pipe inner welding machine structure

The machine is comprised of welding trolley, welding system, mechanic device, welding grounding device, inside welding monitor system, welding flux feeding and recycle device, and control system. Adopt trolley to move pipe, the welding gun fixed type.

3.1 Welding system

• Welding system: welding source, welding control cabinet, wire feeding system and welding gun.

• Welding flux feeding and recycle device: welding flux pressure feeding unit, slag and flux separate device, feeding recycle pipes, vacuum negative pressure recycle machine.

• Mechanic device: welding frame, hang beam, er beam lifting device, welding seam tracking device, welding gun multi-angel adjustment device, beam auxiliary supporting device, welding flux feeding hopper position adjustment device, welding gun frame.

• Welding grounding device: grounding electric brush device, galvanic circle.

• Inside welding monitors system: CMOS colorful camera, video processing circuits, television display.

• Welding wire disc.

3.2Main functions:

• With automatic wire feeding system, welding wire straighten function; wire feeding speed should be stable with inching feeding function.
• With welding flux automatic feeding and recycle using system.
• With welding seam automatic tracking device, and manual adjustment.
• With welding processing monitor system, operator can see the whole welding processing clearly.
• Current contact nozzle distance and angle can be adjusted according to the production technical requirement.
• Inside beam has enough rigidity, can avoid shake during welding.
• Welding flux feeding pipe has switch, can adjust feeding quantity
• Inside welding head with laser indicator, can let operator observe welding seam position.
• Inside welding head with wind pipe to blow the welding foreign matter away, to make sure the welding quality.
• Inside welding frame height can be adjusted, and with locking device.

3Main technical details

• Welding method: Submerged welding
• Welding pipe size: Φ500mm-Φ1000mm
• Welding wire quantity: single
• Welding wire diameter: Φ2.0mm-Φ2.4mm
• Welding source: DC
• Welding speed: 0.5-3m/min(stepless adjustable, constant output power)
• Welding currency: DC:600A
• Welding gun adjust range : 50mm(Horizontal),50mm(vertical)

4Trolley and rollers device:

It includes 2 sets of trolley and rollers, one is with driving power, the other is driven, the trolley driving adopts variable frequency motor, the trolley speed can be adjusted. And the roller can adjust pipe welding seam position.

5. Electrical control and operation system

Including: control cabinet, electrical control system, instrument display, alarm system and other components.

6. The machine components

Pipe making process:

1. Breach machine

What kind of breach machine we need is according to the quality of custom’s product making. Finally we can recommend an economic and useful one to suit you well then. What you see below picture is about breaches for two sides for good next welding.

2. pre-bending machine

We need to get working piece pre-bend at two ends of plate as the following picture for making a good pipe. Obviously there are two ways to make it. One is pre-bending machine and the other is press bake machine itself, but we don’t recommend the last way for the big work piece for long time use. Because of big work piece and big lateral force, it’s obviously easily to damage the machine.

For