The 675 milling machine was first manufactured in the 60s of the twentieth century. Today it is considered an improved version of the 678M machine. Despite the fact that the equipment was replaced with newer models, the 675 milling cutter is still widely used by modern domestic and foreign industrial enterprises for processing workpieces made of steel, non-ferrous metals and their alloys.
Appointment
An industrial milling machine is used to perform milling. Using a horizontal spindle, it is possible to carry out processing:
- disc milling cutters;
- shaped;
- cylindrical.
The rotary vertical spindle can be used with milling cutters:
When equipping equipment with a special nozzle, you can perform mortising operations. Due to the rotation function of the working milling head, metal processing can be carried out at an angle.
Machine setting
High precision metal work is achieved only when the milling cutter is installed correctly.
The machine may be operated indoors or on covered areas with a constant ambient temperature of 20 degrees. Humidity should not be more than 65%. The equipment should be installed on a foundation basis, the thickness of which is not less than 10-15 cm. The machine is connected to a three-phase power supply system with an operating voltage of 380 V, and grounding is also performed.
Key Specifications
The important parameters of the machine are as follows:
- accuracy class according to GOST 8-82 standards - increased;
- dimensions of the vertical table - 200 × 500 mm;
- dimensions of a horizontal rotary table - 200 × 630 mm;
- dimensions of the milling cutter: length - 1110, width - 1170, height - 1750 mm;
- the largest angle of rotation of the vertical head in the vertical plane ± 90 degrees in both directions;
- horizontal type spindle rotation speed (milling head) - 50-1600 rpm;
- the rotation speed of the vertical spindle is 63-2000 rpm.
Design features
Before buying a machine, it is important to study its structure. Description of the 675 milling machine:
- The universal unit is equipped with a cast-iron cast-iron bed on which the working table and headstock are mounted.
- The main movement of the milling cutter is the rotation of the working tool in the spindle. Rotation is transmitted through the gearbox to the horizontal spindle and through a conical pair of gears to the vertical spindle.
- Due to the cross handle, mechanical feeds are made, while the direction of movement coincides with the movement of the table.
- The 675 milling machine incorporates horizontal and rotary vertical spindles.
- Through the caliper mechanism, vertical and longitudinal movement of the desktop is transmitted.
- The spindle head, namely a spindle with a snap, is informed of a lateral feed.
- The working cutting tool is installed in the Morse No. 4 cone.
- The headstock movement is limited by stops.
- The milling machine is equipped with a 1.5 kW main motor.
- The movement from the electric motor is transmitted to the shaft through a V-belt drive; there is built-in local lighting.
- Protective and starting devices are located in the niche of the router.
- The unit is equipped with automatic lubrication stations that supply oil to rotating and moving elements.
- Cutting fluid is supplied to the working area, which minimizes the risk of tool cracking when operating at maximum speeds.
- Coolant is supplied by an electric pump.
- A retractable proboscis is mounted in the construction of milling machine 675, on which an additional vertical milling head is mounted.
- Machine weight - 1100 kg.
Benefits
Universal equipment has a rigid and massive design, due to which high-precision processing of metal products can be performed for a long time (2-3 shifts in a row). The 675 milling machine , the characteristics of which allow to integrate equipment into serial and small-scale production lines, perfectly absorbs vibration, which ensures the quality of work.
Using this model, it is possible to perform milling operations both of small workpieces (width 250 mm, length 800 mm), and massive parts. The big advantage is that the control of the 675 milling machine is convenient as well as intuitive. Since the adjustment and adjustment elements are ergonomically correctly located on the housing.
Economic processing of products using the 675 milling machine is possible due to the presence of a wide range of spindle revolutions and feeds, as well as due to the presence of fast movements. Please note that due to the classic layout, the time for training and getting skills at the machine is minimal.
Additional equipment
In addition to the machine in the assembly, the standard equipment includes an instruction manual and a set of working equipment. Please note that the technological capabilities of industrial equipment can be significantly expanded by equipping the design with auxiliary tools and a set of milling cutters for machine tools. Such devices and accessories are supplied at an additional cost.
You can upgrade the 675 milling machine with the following devices:
- rotary vice that rotate parallel to the bed;
- a round table that rotates;
- dividing, high-speed or mortising head.
The milling machine 675, the description of which is also presented in its passport, which is included in the standard package, can be installed both at large industrial enterprises and in small repair shops.