Fixed-workbench Not-updown Milling Machine
Fixed-workbench not-updown milling machines are designed for milling medium, small and large parts without changing the fixture position on the workbench. The working table remains in a fixed position, and the cutter and the workpiece move relative to each other for processing. It is mainly composed of bed body, worktable, milling head, feed transmission part and electric control part.
I. Features
1. The movement of the fixed-workbench not-updown milling machine is realized by rotating, moving and restraining the table and drive system independently, so that the feed is exquisitely and reliably coordinated under the condition of variable coordinate transformation.
2. The feed mechanism is composed of a servo drive system and a synchronous belt transmission system. The numerical controller can realize low-friction, low-wear and accurate cutting according to the programmed cutting data. The workbench can be driven in two directions (X,Y) bidirectionally, the milling head can be rotated in three directions (X,Y,Z).
3. The transmission system is fast and stable. During the milling processes, the cutting force is transmitted to the machine tool frame in time, so that the heat caused by high-speed cutting is almost eliminated, and the accuracy of the finished product is guaranteed to a large extent.
4. The spindle of the fixed-workbench not-updown milling machine adopts frequency conversion speed regulation system, the speed can be infinitely adjusted within the set range, and a large processing range is realized.
5. The workbench itself is equipped with a recirculating lubrication system. During work, the oil supply pipe is opened to lubricate the slider rails and guideways, so as to achieve better protection and reliability.
II. Technical Parameters
1. Table size: 1500*1000mm
2. Stroke: X/Y1000/400mm
3. Spindle speed: 4000rev/min
4.Feed speed: 2000-3000mm/min
5.T-shaped groove: 25mm
6.Taper hole in spindle: Φ7:24
7. Spindle power: 5.5kw
8.Power supply: 7.5kw
9.Coolant: 500L/min
10.Detection accuracy: 0.01mm
11.Positioning accuracy: 0.015mm
12.Processing accuracy: 0.025mm
13. Control system: Simens 828D
III. Advantages
1. The structural system of the fixed-workbench not-updown milling machine is relatively simple. The transmission system is composed of synchronous belts, pulleys and gears, which are connected relatively close and make the transmission more stable.
2. The programmable numerical control system ensures the processing accuracy of parts. The positioning of the workpiece is completed by a single corner block method. The processing accuracy can reach 0.025mm.
3. The knee joint design is added to the table before and after, which increases the service life of the rolling bearing, saves oil and reduces performance degradation.
4. The use of a servo drive ensures that the movement rate is high and does not cause a jump in the workpiece.
5. The accessories are equipped with cooling, lubricating, network port and foot switch functions to ensure the mechanical stability, accuracy and convenience of the fixed-workbench not-updown milling machine.
IV. Applications
The fixed-workbench not-updown milling machine is suitable for processing medium and small parts, as well as large parts with complicated shapes and high accuracy requirements. It can be used to process various curved surfaces, inclined edges, grooves, holes and special surface shapes.
In addition to general milling, the fixed-workbench not-updown milling machine is also used for keyway milling, die processing and other special processing requirements.
V. Conclusion
The fixed-workbench not-updown milling machine has stable transmission performance and fast speed; it is easy to operate, has a small operating space, is suitable for small-batch production of parts with high precision requirements, and can greatly improve the production efficiency. It is an ideal machine tool for machinery processing at present.
