The service life of the milling machine fs 1a. The device and description of the components of the machine

Sheathing boards (lining) and for flooring, plinth, trim, glazing beads and others Decoration Materials wood used in construction furniture production and during repair work, are made on a machine with the abbreviation FSSh-1.

The equipment belongs to milling type with manual feeding. Equipped with a tenoning carriage. They also perform work on it using templates to obtain curved surfaces and cutting spikes. On the machine model FSSh-1, milling is carried out at an angle due to the presence of a special locking mechanism.

Such machines are installed in the shops of woodworking enterprises and workshops engaged in the production of products made of wood.

Rice. one - General form machine tool FSSh-1

Specifications

These include the following indicators:

• voltage and frequency of the power supply network (380 V, 50 Hz);
• supply voltage for control and signaling circuits (respectively 110 and 22 V).
• depth to which milling can be carried out (100 mm);
• the width and diameter of the workpieces used (respectively, no more than 700 mm and 90 mm);
• the size of the course of the tenoning block (926 mm);
• the amount of vertical movement of the spindle (100 mm);
• applied diameter cutting tool(no more than 250 mm);
• power and frequency electric motor(4.0; 4.75 kW and 1420 and 2820 rpm respectively);
• the number of revolutions per minute made by the spindle (3000, 4500, 6000 and 9000);
• spindle nozzle diameter (no more than 32 mm).

dimensions in mm 1000 x 1110 x 1270 and weight in tons 0.81.

Machine design features

The cutting tool of the milling machine is placed in a special housing with a nozzle, which is designed to remove dust and chips. The machine is connected to a general or local waste disposal system. There is a special mechanism in the design of the machine for adjusting the amount of wood waste removal.

Composite mechanisms and units of the unit

They are placed on the machine on a powerful frame and compactly inside it, taking into account the convenience and safety of use. The bed has a box shape and is made by welding or casting. Inside there are special guides for installing the drive. On the frame there is a table, reinforced with stiffeners, made of cast iron. A clamp with a ruler, moving along the T-shaped grooves, serves to fix the workpieces. Locking is done by clamps screw design. The carriage moves along the guides manually by the operator and serves to advance the workpiece in the desired direction. The milling machine drive is a device consisting of the following structural elements:

• asynchronous two-speed electric motor with a squirrel-cage rotor;
• transmission with poly V-belt;
• headstock;
• sub-engine plates;
• rods in the amount of 2 pieces.

The headstock is a housing made of cast iron in which the spindle is located. It is mounted on special bearings. In its upper part there is a cone-type hole for attaching a removable spindle nozzle (mandrel). There is also a bracket that serves to hold the mandrel. This device is driven by rack and pinion.

A steel shield with special claw protection and a movement limiter near the working tool closes it, which makes working on the machine absolutely safe in terms of safety.

The lifting mechanism is a unit consisting of a gearbox, a screw pair and a flywheel. Its purpose is to raise or lower the motion drive.

Location of controls

The unit is equipped with a compact control panel. It has 2 pushbuttons for turning the drive on and off and 2 signal lamps for green and white color, which notify about the supply of voltage to the machine and the inclusion of the drive, which transmits the rotation to the cutter. Electrical equipment is located in the niche of the frame. The rotational speed (recall, there are 4 of them) is changed by pressing the switch button.

Kinematic scheme

On fig. 2 shows a kinematic diagram showing the places where the bearings are installed.

Rice. 2 - Kinematic scheme

Wiring diagram

On fig. 3 shows the electrical circuit of the milling machine.

Rice. 3 - Electrical diagram

electrical equipment

A 4 kW two-speed electric motor is connected to the headstock via a belt-type transmission. Spindle acceleration or deceleration time 2.3 sec. The motor is protected against short circuit and overheating. Availability in wiring diagram interlocks ensure the safety of the operator when working on the equipment.

The electrical part is covered in more detail in the passport data and the operating instructions of the unit manufacturer.

Analogues

FSSh-1 machine, the abbreviation of which stands for milling machine tenoning is produced by several Russian enterprises, which, as a rule, add the first letter of the city where the manufacturer is located to the marking in brackets. The presence of the letter A indicates the improvements made in the design. Therefore, machine models are produced:

• FSSh-1A - Kurgan plant of woodworking machines;

• FSSh-1A(K) - Kirov Machine Tool Plant;

• FSSh-1A (D) - Dnepropetrovsk LLC "Stankostroitel".

The exception is the F4 machine model, which is considered an obsolete version produced before the FSSh-1 model. It differs by the diameter of the tool used for woodworking (up to 150 mm), the number of spindle revolutions (6 - 8 thousand per minute) and the power of the spindle motor (5 kW.)

Operating rules

The machine is installed in a room where the temperature does not fall below 10 C and humidity does not exceed 80%. The device must be properly grounded. For this, a special contact clamp is provided in its design. It is connected to the general circuit of the room. The operator, before starting daily work on this equipment, must know the device and the principle of operation. constituent parts and products in general. To do this, he reads the operating instructions supplied by the manufacturer of the product to a specific model and undergoes appropriate instruction.

Wooden blanks must be of the 1st grade in quality, have flat surface and the humidity of the wood used should not exceed 15%. They should not have foreign foreign objects. Workpieces of great length must be mounted on additional supports or, in extreme cases, such parts must be handled by 2 people. The quality of tool sharpening must be checked before it is installed on the equipment. It must comply with the requirements specified in the documentation for the respective instrument.

Getting started, must wear earplugs or earmuffs, goggles, gloves and overalls.

Safety

The quality of its work depends on how the FSS-1 is installed. Therefore, after its transportation to the installation site and the installation itself, the alignment of the installation accuracy should be checked for level. It should not exceed 0.1 mm per 1 m of the product. The bed is fixed to the base with the help of foundation bolts with a diameter of 12 mm in the holes provided on the bed. All protective grease from the places to be preserved is removed with a rag.

Before operating the machine in the operating mode, its readiness for operation is checked at idle, i.e. without workpiece processing.

Attention! The spindle drive has dynamic type braking. It should not turn on and off more than 10 times per hour.

The number of spindle revolutions is selected depending on the selected cutter diameter:

To adjust the number of revolutions, a motor speed switch and a belt are used, which are reset to one of two positions on a two-stage type drive pulley.

The safety of work on the FSSh-1 machine also depends on how the equipment is technically maintained during its operation. Every shift and scheduled inspections should be carried out, which are carried out within the time limits specified in technical documentation, which is maintained by the person responsible for the electrical facilities of the enterprise or workshop.

A daily inspection by the site foreman or the operator himself makes it possible to identify a malfunction or insecurity of fastening the machined tool, mandrel, and other structural units. A scheduled inspection includes a set of works on lubrication, its replacement, accuracy checks (technological and geometric) and testing of electrical components. They check the performance of starting push-button elements, switches, the quality of the connected cores and wires, the tension of the contact parts.

The FSSh-1A universal milling machine was developed by the team of the Kurgan woodworking equipment plant. It belongs to the class industrial equipment and is intended for completing furniture and woodworking production lines.

Description of structural elements

With this model of the machine, you can perform wide range milling operations for processing wooden blanks. Materials are fed manually, there is the possibility of cutting spikes. For this, the design has a special tenon-cutting carriage. You can also do the processing of curved surfaces using templates.

The design of this model is simple, the kinematic scheme of the drive is not complicated. The basis of the equipment is a pedestal, inside which the power plant is located. From it comes a rotational movement on a vertical shaft. The FSSh-1A model has adjustable table, protective equipment and a set of guides for processing wooden blanks.

Overview of hardware components:

• bed. This is a molded hard box required to install the main components. Some modifications of the machine provide for the manufacture of the frame by welding;
• Desktop. It is mounted in the upper part of the bed, made by casting from cast iron. The surface of the table is carefully polished, additional stiffening ribs are installed in the lower part;
• drive device. It consists of a two-speed electric motor, which is connected to the headstock by a belt drive;
• spindle head. A working spindle is installed on it with the help of rolling bearings. Its shaft has a taper hole for the mandrel. The installation of the cutter is carried out using a differential nut;
• studded carriage. It is installed on the edge of the desktop. Its movement relative to the working cutter occurs with the help of rolling bearings. The tenoning carriage plate has several mounting holes for mounting additional components.

To remove chips, the design provides a branch pipe for connection to the system exhaust ventilation. Improving the accuracy of processing contributes to the system of fixing workpieces with a measuring ruler. It can be used to cut at an angle.

For work safety most of cutter is closed with a steel protective shield. However, it does not affect the functionality of the equipment, since the design has convenient system shield illumination relative to the working tool.

Technical parameters of the machine

Please note that the machine is intended for indoor use only. Its design does not provide a system of protection against moisture. It is also recommended to follow temperature regime, the conditions of which are indicated in the technical data sheet.

The total weight of the assembled machine is no more than 810 kg. But even with such a relatively large weight, its dimensions are 100 * 111 * 127 cm. Thanks to this, the equipment can be installed in production or repair facilities with a small area.

Main specifications machine FSSh-1A:

• maximum allowable thickness wooden blank- 10 cm;
• desktop dimensions - 100 * 32.5 cm;
• parameter of the maximum vertical displacement of the spindle - up to 10 cm;
• speed of rotation of the spindle head - from 300 to 9000 rpm;
• the width of the workpiece mounted on the carriage cannot exceed the size - 70 cm;
• landing diameter of the spindle nozzle - 32 mm;
• the cutting mill can have a maximum diameter of up to 25 cm;
• the tenoning carriage has a maximum stroke of up to 92.6 cm.

The machine has the ability to change the height of the desktop. This parameter can be 86 cm. If a large height of the desktop is required, it is necessary to make a support stand. This takes into account the mass of the equipment and its vibration. Otherwise, defects will occur when processing wooden blanks.

For a detailed acquaintance with the features of the milling machine, it is recommended to watch the video:

The machine is designed to perform a variety of milling work on wood with manual feed, cutting simple tenons using a tenoning carriage.

When installing a copy carriage on the machine (by special order for a fee), curvilinear milling according to the copier with manual feed is possible.

Price: 240,000 rubles.

Specifications

Note: *When installing the copy carriage according to spec. order for a fee