The 6P12 vertical milling machine has high technical and operational performance. This equipment is used to process various blanks from steel, cast iron, non-ferrous alloys. The unit works equally efficiently with parts of a simple and complex configuration. The main operation is mainly carried out by face and end mills. Consider the features of the device and the operation of this technique.
Device
The 6P12 vertical milling machine is equipped with a vertical pin spindle and a working surface in the form of a horizontally movable table. It is fixed on the console, moving vertically thanks to special guiding elements. The equipment under consideration provides elementary numerical control and a copying device that allows you to work with curved parts.
The rotary head of the spindle has a node axial mechanical movement of the sleeve. This feature makes it possible to service holes with axes placed relative to the surface of the table at diametrically opposite angles of 45 degrees.
The principle of operation of the vertical milling machine 6P12
Curved blanks on the equipment in question are processed according to copiers. The shape of the milled surfaces is analyzed by an electrocontact type sensor with a movable tip. Due to the rigorous design of the machine, it is possible to operate mills made of high-speed steels, as well as synthetic analogues of the hard and superhard categories.
The vertical console-milling machine 612 corresponds to the accuracy class "N", it is used in single and mass production. In all cases, the device demonstrates a high rate of milling and related manipulations.
Technical characteristics of the vertical milling machine 6P12
Below are the main parameters of the equipment in question:
- Overall dimensions - 2280/1965/2265 mm.
- Weight - 3.2 t.
- The dimensions of the desktop are 1250/320 mm.
- The maximum weight of the workpiece is 250 kg.
- The course of the main surface transversely / longitudinally - up to 800/250 mm.
- Vertical displacement of the base - up to 420 mm.
- The rotation speed of the spindle head is 40-2000 rpm.
- The number of speeds is 18.
- The range of variation of the position of the pintles is 70 mm.
- The number of innings is 22.
- Electric motor power - 7500 watts.
Most of the characteristics of the 6P12 vertical milling machine passed to its analogs and subsequent models. Among the most popular modifications of the unit:
- Version 6R13F3 (with multifunctional CNC complex).
- Shirokouniversalny model 6P13.
- Options 6T12 and 6T12-1.
- Foreign analogues (FV401, X5032, VM127M, 6D12).
Wiring diagram
The 6P12 vertical milling machine is equipped with an electric motor of 7.5 kW and a 2.2 kW feed motor. The electrical circuit of the device allows the operator to choose one of three working positions:
- Automatic mode (the table moves in the longitudinal direction).
- Management by means of handles and buttons.
- Round table function.
To simplify the switching of the feed speeds and the rotation of the spindle, the unit was equipped with a pulse start device of the power plant. When using buttons and levers, the circuit operates by closing the contacts of the corresponding keys.
Features
The machine spindle is activated and stopped by the “Start” and “Stop” buttons. The second key also stops the feed motor. The transfer of equipment to the accelerated mode is carried out using a separate button.
If one of the working gears is selected, the operator will not be able to activate another speed, the circuit will simply block such an attempt. The motor rotating the spindle element is braked according to the electrodynamic principle. The circuit also contains a special relay that protects against breakdown of rectifiers, which can occur when the motor is turned off.
The automatic mode of the equipment in question provides the following operation of the circuit:
- Active supply.
- Working feed.
- Quick lead.
If the round table option is used, the employee cannot activate other feeds, since they are under blocking. The mode operates with the help of the feed engine, it is possible to connect high speed.
Preparation for operation
Before using the 6P12 vertical milling machine, you should carefully study the passport and characteristics of the device. The manual presents the technical requirements for installation, rules of use, maintenance methods, safety measures.
Choosing a place for installation of equipment is necessary taking into account its dimensions, weight and parameters. You should also pay attention to the availability of free space for the operator and the workpieces being processed. Heavy parts are usually placed using special lifts.
Recommendations:
- After unpacking, it is necessary to clean the surface of the equipment from the protective composition, using special compounds.
- Lubricate the units and elements specified in the passport.
- Before operation, check the unit for defects and the correct settings of the main components. It should be borne in mind that the actual parameters may differ from the nominal values due to prolonged operation.
- After fixing the cutters, a protective fence is mounted. This item is included in the box.
- After assembling all components, the machine is started at idle, all operating modes are checked.
Repair and service
Most of the non-critical malfunctions of the 6P12 machine can be completely resolved independently, without calling a specialist:
- The power unit during operation is very hot and humming. Such a nuisance may occur due to an interphase short circuit or a violation of the integrity of the circuit between the turns of the motor winding. If, after repairing the coil, the fault persists, engine replacement is required.
- The bearing is knocking. Everything is simple here - the defective part is changed to a new element.
- If during start the motor is buzzing and does not rotate, it is necessary to check the phases for voltage. Replacing the fusible inserts will help correct the situation.
Other malfunctions require the participation of an installer or specialist.