end forming & cutting & bending machine
Blanking stroke and accuracy (U axis) | Feeding stroke / time: 200 ~ 750mm (length = 1000mm, precision + 0.3mm; 1000mm < < length 2000mm, precision + 0.5mm), maximum speed: 0.75m/s |
| Single feed stroke | 700mm |
Blanking quality requirement | The tolerance of cutting copper pipe roundness is less than 1% |
Coil dimensions & weight | Disc diameter of 1000 ~ 1230mm, the center hole of 130mm diameter tray, tray spacing of 250 ~ 340mm, the maximum coil weight less than 250Kg |
| alignment tolerance | Less than 2 per thousand |
| Repeated fixed length error | Less than 0.6 mm |
| Necking rate of nozzle bore | 0.15mm (120 mm and above) |
| Opening uniformity | Less than 0.5mm |
| Feed efficiency | 6S/ (open the root length of 1000 mm single material) |
| Pipe end forming technology requirement: | |
Stroke / machining station | Two position stroke. Single station spinning. It can satisfy the function of expanding and necking by changing different moulds |
Pipe end flaring capacity | Expansion: 3mm (after expanding the pipe diameter - the original pipe diameter) the following; (after expanding the inner diameter is greater than the original pipe diameter 0.3mm or more, deep 6 ~ 20mm adjustable, concentricity is less than 0.3mm) Shrink mouth: 2mm (original diameter - necking pipe diameter) below; (shrink mouth diameter is less than the original pipe diameter 0.3mm or more, deep 6 ~ 20mm adjustable, concentricity is less than 0.3mm) |
| Maximum clamping force | 1000Kg |
| Maximum strength | 1000Kg |
| Maximum machining depth error | 〈±0.5mm |
| Maximum coaxiality error | 〈0.1mm |
production efficiency | Single station less than 3 seconds (including root tube end forming mechanism to move, tube end forming time) |
| Double station less than 6 seconds / root (including the tube end forming mechanism to move, tube end forming time) | |
| Technical requirements for bent pipe mechanism: | |
| Maximum bend diameter X wall thickness | Phi 16mm * 1.0mm and below |
Elbow radius | Dual mode: only two kinds of bending radius each time. According to the requirements of R20 and R25 two specifications are each equipped with three sets of bending die, clamping and fixing part; the mould is changed with dovetail groove structure of other existing CNC bending equipment general, to facilitate long-term maintenance and replacement; |
| Workpiece length | 100～1200mm |
Straight line feeding stroke | 0 ~ 1200mm Speed: 0 ~ 1000mm/s Accuracy: + 0.05mm |
| Maximum feeding speed of pipe bending | 0.75-1m/s (adjustable) |
| Space rotation angle and accuracy (Y axis) | Angle 0 to 3600; speed 0 to + 6000/SEC; accuracy: + 0.050 |
| Space rotation angular velocity | More than 3600/s (adjustable) |
| Bend angle and accuracy | 0~2000, accuracy: + 0.050 |
| Bend angle speed (Z axis) | More than 1800/s (adjustable) |
Flat rate of copper tube | 1 in the non core bending diameter 9.52mm, bending radius of more than R20 (including R20) of copper, copper flat rate less than 1.15, can not bend is scratched, crushing and other quality problems. 2 in the non core bending diameter 9.52mm, bending radius R15 of copper, copper flat rate less than 1.185, can not bend quality problems scratch crush. |
Comprehensive blanking, tube end forming, bend speed | According to the bending of a 1 meter long, 5 of the 900 bending diameter of 9.52mm brass (including material, single station tube end forming, bending (Dan Mo), unloading, processing) completed 1 in less than 12 seconds (i.e. every T less than 12 seconds to complete a product). |
Composite surface condition | The surface of the copper tube has no obvious pulling, pulling, pressing, scoring and knurling like scratches, and the pipe head has no burrs; Phi 20 and the following specifications of copper pipe diameter is not smooth, the roundness is less than or equal to 3%. |
| Power Supply | Three-phase 380V |
| Gas pressure | 0.45－0.55Mpa |
| Equipment cooling mode | Air cooling |
● The equipment frame and fuselage cabin type keel structure, equipment is composed of square steel tube and arc welded steel plate forming, stress relief after the overall processing, to ensure that the device has enough strength, stiffness and stability, with four height adjustable feet cup.
● The parts of the equipment shall be subjected to the necessary surface treatment according to the actual working conditions and working environment, such as electroplating, blackening, quenching, carburizing, electrostatic spraying, etc., to meet the sufficient strength and surface function of the components
● Die for the whole mould; guided mode optional servo mode, boosting device and anti wrinkle device; clamping, guide mold, die mold and the surface hardness of not less than HRC50; the replacement operation of all kinds of mould is simple, convenient, and meet the requirements of processing technology.
● The feeding shaft of the linear shaft adopts high-speed linear moving assembly
● The machine head is an integral box type structure, and the bent arm is driven by a precise toothed chain. Both ends of the drive sprocket and the output shaft of the gear reducer are provided with supporting bearings, and the adjusting method of the chain is a butt type double helix structure
● The rotating shaft is powered by a precision planetary servo reducer, and the servo system is used to control the feeding, bending and rotation of the servo system
● The clamping mechanism is a parallelogram movement, over diagonal locking, ensure the clamping force and avoid gashang brass clip enough, all joints were German polymer free lubricating bearings, guide mode using slide rod structure, half back and full back Duan Hangcheng two, feed clamp adopts three petal chuck structure to ensure with enough force, mechanical strength and service life; core pulling with fast positioning and anti rotation device;
● The discharging frame is powered by one side discharging
●Straightening unit: the use of block substrate installation, convenient specification transformation. Through a pair of round school brass rolling wheel, eliminate local section micro deformation, through the horizontal copper tube surface and vertical surface are respectively provided 5 of the straightening wheels, and can according to the copper soft, hard, adjust straightening deformation of each straightening wheel. A smooth surface and is provided with two bearings, effectively guarantee the accuracy and stability of alignment.
● Fixed length feeding mechanism: AC servo motor drive ball screw feeding, feeding guide rod adopts wear-resisting rod and linear bearings, flexible movement, feeding clamp adopts reinforced cylinder
● The cutting mechanism: the cutter roller structure and external rotation type, in order to prevent the pre tension when the copper sliding knife edge collapse, lead, copper tube fixed clamping adopts double stage power cylinder clamping, clamping force of the clamping force to break the double clamping mechanism adopts independent cylinder feed, feed and return components, promote the smooth feed that knife back quickly, cutting head feed can be adjusted to accommodate different cutter wear changes, to ensure all the pipe necking rate. With intermittent blade injection device, the cutter head is provided with volatile oil lubrication to prolong the service life of the nozzle, the blade.
● Shifting mechanism: driven by servo motor, the screw rod is moved in parallel and driven by cylinder
● Blanking manipulator: after processing, it is clamped, pushed, rotated and unloaded by pneumatic mechanical finger
● Hydraulic system: inner oil tank, side inspection flange plate, equipped with air or hot and cold exchanger, this equipment adopts quantitative pump, the oil circuit adopts energy-saving, low noise design
● Pneumatic components: the main pneumatic components of equipment for the implementation of agencies and fuel injection, pneumatic circuit with voltage regulation, purification, lubrication and adjustment of pressure devices
● Electrical control:
1. CNC centralized control is adopted
2. each process manual, the whole machine automatic operation function
3. Alarm indicator: power supply, no material, cycle completed, abnormal cycle, emergency stop, overheating trip, cutting abnormal, abnormal discharge of products and other functions
4. The operation panel is composed of CNC display, knob, stop button and functional keyboard. It is clear and easy to operate
5. The electrical components of the equipment installed in accordance with the relevant provisions of the state, and a reliable grounding device, the electric terminal box, contactor and small air switch using VDE standard V type groove installation, all electrical components are clearly identified within the cabinet, the full plastic comb hole slot cabinet wiring, clear line number control panel; clean, clear and easy to read subtitles signs.
● Safety protection: the installation of the electrical components of the equipment conforms to the relevant regulations of the state, and has a reliable grounding device, a protective cover, automatic stop when opening the protective cover
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