Heavy Duty Horizontal Two Chucks Tube Laser Cutting Machine FLT-6035ETN

The main use and application scope of the product

It is mainly used for round, square, rectangular, elliptical and waist round pipes of common carbon steel and stainless steel materials, cutting workpiece external circle size Φ16-Φ350mm, the maximum length of raw material is 4000-6000mm, loading space is about 6400mm.

The main composition of the product

The main components of FLT-6035ETN series laser pipe cutting machine are: main machine tool, automatic feeding frame, feeding conveyor chain device, control system, low-voltage electrical system, laser, water chiller, extractor fan, etc.

Machine tool host part

The host part of the machine is the main component of the whole laser pipe cutting machine, the laser pipe cutting machine cutting function and cutting accuracy are achieved by the host part, the host part by the bed, with the support, side column, chuck part, X / Z axis device, with the material receiving device, auxiliary systems (protective cover, air and water), operation screen and other parts.

Automatic loading frame

The loading frame is composed of storage lifting device, horizontal conveying device, pressing device, dividing device, lifting device, flush device and clamping claw loading device. It can realize the bundle of pipes put into the storage basket at one time, and the pipes are automatically lifted and loaded, with rectangular pipe stacking detection and attitude correction function. The dividing device can ensure that only one pipe is conveyed to the front end at a time.

Lowering conveyor chain device

The downfeed chain unit consists of several transverse chain conveyors that take up the cut pipes and transport them out transversely. The chain operation is controlled by a variable frequency motor.

Electrical control part

The laser pipe cutting machine electrical control system is an important part to ensure the running trajectory of various graphics, the general electrical control system mainly consists of CNC system and low-voltage electrical system.
The CNC system of this machine is equipped with Bertru high-performance bus type 5000A CNC system, which is based on windows operating platform, stable and reliable operation, contains 32-bit microprocessor, and can be matched with nesting software.

Low voltage electrical system

The low-voltage electrical system is located in the electric control cabinet, which is the interface part of the electrical control of the whole machine. All the original components of the electrical system are made by famous manufacturers at home and abroad to ensure that the whole machine is stable, reliable and responsive in operation. The drive motor is AC servo motor, AC servo motor used to drive the X-axis, Y-axis, AW (synchronous rotation) axis of the machine tool, characterized by good acceleration performance, fast response speed, X,Y-axis maximum positioning speed up to 60m/min; machine tool Z-axis for the feed axis, using AC servo motor (with holding brake) for driving: that is, Z-axis cutting head, characterized by good dynamic response characteristics, both with the control and can be NC control.

The fiber laser

The fiber laser used has higher photoelectric conversion efficiency, lower power consumption and better beam quality compared to traditional lasers. The laser is compact, maintenance-free operation and ready for use. Due to its flexible laser output method, it can be easily integrated with system equipment.

Auxiliary peripherals

Including water chillers, exhaust systems, etc.

Bed and follower support part

The bed is made of welded plate and tube, divided into 2 sections, annealed to eliminate internal stress, rough machined and then finish machined by vibration aging, thus greatly improving the rigidity and stability of the machine tool and ensuring the accuracy of the machine tool. The machine is equipped with automatic lubrication device, which adds lubricating oil to the moving parts of the bed regularly and quantitatively to ensure that the moving parts operate in good condition, which can improve the service life of guide rails, gears and rack.
There are 2 groups of follow-me support mechanism on the bed, which are optimally arranged to provide auxiliary support for the pipe. Each group of supports has a separate servo motor driving the up and down movement of the pallet assembly. For rectangular tubes, the system will adjust the pallet height of the pallet assembly in real time according to the outer contour of the tube to ensure that the pallet supports the tube stably. When the chuck moves to the corresponding position, the auxiliary support automatically descends for avoidance.
The support is also designed with an alignment device to center the pipe so that the rear chucking device can accurately clamp the pipe.

X-axis, Z-axis, side column and chuck part

The side column is fixed on the bed, welded by steel plate as a whole, annealed to eliminate internal stress, rough machining, vibration aging and then finish machining to ensure the rigidity and stability of the moving parts of the laser head.
X-axis guide adopts high quality linear guide rail and module double guide, driven by servo motor drive screw for transmission, so that the Z-axis sliding plate to achieve reciprocating motion in the X direction. In the process of movement, the limit switch controls the stroke to limit, and there are also elastic cushion mechanical limits at both ends to ensure the safety of system operation.
The chuck is divided into three groups of pneumatic chucks, front, middle and rear, and the three groups of chucks are driven by servo motors to move and rotate synchronously in the Y-axis direction. Under the logic action set by the system, it can realize the pulling type cutting of the pipe, which can greatly improve the cutting accuracy and can conditionally realize the zero tail material cutting (depending on the workpiece cutting size and specific cutting process).
The Y-axis movement drive rack, linear guide and W-rotation drive gear of the chuck are all made of high precision products, which effectively ensure the accuracy of transmission; each group of chucks is controlled by limit switches and equipped with hard limit devices, which effectively ensure the safety of machine movement.
Z-axis device is mainly to realize the up and down movement of laser head. The up and down movement of the laser head is done by the servo motor driven linear module controlled by the CNC, which drives the laser head up and down reciprocating movement. The upper and lower ends are controlled by proximity switches to ensure the safety and reliability of the movement. The linear modules are all made of high quality products to ensure the accuracy of transmission.
The capacitive sensor in the Z-axis device detects the distance from the nozzle to the surface of the plate and then feeds the signal to the control system, and then the control system controls the Z-axis motor to drive the cutting head up and down, thus controlling the constant distance between the nozzle and the plate and effectively ensuring the cutting quality. The position of the focal point is adjusted according to the material and thickness of the cutting material, thus obtaining a good cutting section. So Z-axis can be used as a CNC axis for interpolation movement with X, Y and W axes, and it can also be switched to follower control to meet the needs of different situations. Since the Z-axis follower is also controlled by the CNC system, the accuracy of the follower is high and the stability is good, thus ensuring the quality of cutting.

Follow-Up Front Splice

There are 3 groups of follow-me front pick-up devices. All of them use servo motor driven screw to control the lifting and lowering of the splice plate, when the cut pipe is long, the splice plate holds the pipe to prevent it from sagging. For rectangular pipe, the system will automatically calculate and adjust the height of the pick-up plate in real time according to the outer contour of the pipe to ensure that the pick-up plate supports the pipe stably.
According to the length of the workpiece, the system will automatically control the receiving action of each group of receiving device, i.e., it can lift and turn synchronously, or use only one of the components to act independently, and can automatically turn over the receiving plate for unloading, and the position of the lower feed opening can also use the flip plate action to achieve waste screening, making the machine more intelligent, convenient and efficient.

Automatic feeding system

The loading frame consists of storage and lifting device, horizontal conveying device, pressing device, dividing device, lifting device, flush device and clamping jaw loading device.
The storage and lifting device is used for storing and placing bundles of pipes, and it adopts the chain-driven frame lifting method to lift the pipes to the horizontal conveying device.
The horizontal conveying device is composed of several groups of chains, which can send the pipes to the front of the upper frame. Each group of chains is divided into two sections, front and rear, driven by different motors, so that each section of the chain can be controlled individually.
The press device can correct the stacking or placement of pipes, and the press height can be adjusted automatically according to the pipe type.
The dividing device is located at the interface of two sets of conveyor chains, which can automatically sort the pipes and ensure that a single pipe is conveyed to the lifting side for feeding.
The lifting device can lift the pipe in place to a fixed height for clamping jaws.
The flanging device drives the flanging plate by servo motor to flange the lifted pipe in the direction of the axis (towards the laser head) so that the pipe ends are aligned for accurate clamping of the pipe in the chuck.
The jaw loading device is responsible for clamping the pipe and then sending it to the top of the mainframe for clamping in the rear chuck. The jaw feeding action is controlled by a servo motor. Depending on the size of the pipe, the jaws will automatically determine the feeding distance to ensure that the pipe is concentric with the chuck.
The automatic loading frame is controlled by a separate PLC, which communicates with the mainframe control system to complete the logical operation of the mainframe and loading frame.

Electrical control system

FLT-6035ETN three-chuck pipe cutting machine electrical control system is mainly composed of Bertrud CNC 5000A bus type system, servo system and low voltage electrical system.