YOUR WOOD-MACHINING

Delivered to readers a woodworking machine I own was designed, personally manufactured and now successfully use when building a house on his land. See how successful the design: compact.technologically, it seems suitable to “replicate”. The machine is so simple that sverhusiliya detailing for its production are unlikely to be needed. For all the attachment here free access. So if you want the design can be easily disassembled and transported in the trunk of the car, collect in a new place for thirty minutes.

We offer the option for universal woodworking machine with bearing elements made from a steel angle and sheet steel. Although know experienced homebrew is not difficult to find these materials a suitable replacement that will be on hand. Of course, with a maximum use of technical solutions providing compactness, manufacturability of Assembly and disassembly.

 

Take, for welded parts and assemblies. A lot of them. First of all is the support-base made from a steel angle 50×50 mm. Then there is a frame for installing G-shaped struts of the table and the bearing units of the driven shaft with the working bodies of the machine. It is made from a steel angle 60×60 mm. Welded work will also be required when rigid fixation of the bushings the l-shaped struts to the table top, run the line-limiter and a special turntable for the motor.

 

On the last should mention. It is welded from pieces of steel area is 40×40 mm and rod, the ends of which sliced inner thread M12. Rod serves as the rotary axis of the platform, inserted between the uprights and secured with two bolts M12. Three-phase asynchronous motor АИР100Ѕ4УЗ with 100-mm double-strand pulley is installed on the platform using four bolts with nuts and washers.

 

The tension in V-belt transmission is carried out by rotating the lamb on the rod passing through the hole in the platform, followed by zakanchivaya.

Prop-base, frame and four racks from 40x40mm steel angle, fastened together by bolts M20 form a base frame. Bolted to it is made from a sheet of aluminium gutters to sawdust and chips, other components and parts, including instrument start-up and motor control.

 

Table cover consists of two identical 6-mm steel plates held together by side members by means of M12 screws with a countersunk screw and lock washer. To the lower surface of the lid, as mentioned, welded to the four bushings which can be rotated l-shaped rack. As for the range-limiter, it should be fixed on the rails using compound clips and screws M8.

 

A few words about the engine. Because the machine used АИР100Б4УЗ three-phase (3 kW, 1410 rpm) for inclusion in a single-phase network had to introduce the f-sodegawa capacitors — starting and work. And for the most effective use is to provide for the connection of the windings or “star” or “triangle”. The first of these modes (with the symbol “Y”) recommended for use when sawing and planing with a low load (when the boards are not too thick). The “start” button is pressed here, if ЅА1 — disabled, ЅА2 — enabled and IS — set to “Y”. In this work magnetic contactor and locking SV1 ensure a reliable supply voltage to the motor windings.

 

 

 

 

A circuit diagram of a control elektrodvigatelei machine-universal.

 

Mode with the symbol “D” is high power. Switched to this after the motor, thoroughly disperse, gain the required momentum in the “Y”. Then feel free to increase the capacity of the phase-shifting capacitor, further connecting with ЅА1 another 100 UF. And only then, avoiding strong starting currents, the switching windings on a “triangle”, moving BASES in position “D”.

 

To stop the engine easily in any mode. To do this, simply click on the “Stop” button. Then immediately stops voltage supply to the coil of the magnetic starter coil, and it will de-energize the motor.

 

As for the switch ЅА4 “Reverse”, as shown, it can not install. And the required direction of rotation achieve in this case, during commissioning works by “swap ends” of one of the windings.

 

And one more remark about the peculiarities of the considered schemes. After stopping the motor, both of the capacitor must be discharged. To do this, we need only… to include ЅА1 and ЅА2.

 

It is time to consider and features of operation of the machine as a whole. Better to do it, referring to the illustrations.

 

First of all — adjust height of cut and depth of cut. The desired results are achieve… rotation of the screws. Special, adjusting with subsequent fixation of the lower nut.

The change in the tilt of the table (when sawing at an angle other than the direct) is a simple lift (or lowering) struts (on the opposite side of the saw blade) to the desired height. Optimum shaft speeds (1500 rpm for cutting and about 3500 rpm for planing source material) achieved by the appropriate selection of diameters of the driving and driven pulleys.

 

Other capabilities of the machine? They are in direct proportion to the tool at the working shaft. For example, using different cutters, it is possible to choose the slots, quarter. Replacing a circular saw blade for cutting the circle, we get a reliable mechanical cutter metal. And with the installation of a grinding — machine for sharpening the tool.

 

But all this requires care. And, of course, strict, strict observance of safety rules. In particular, when installing the shaft to the frame of the bed it must be tough, straight pin. Tightening the bolts first on one leg, to make sure that another did not rise above the frame and was not overly pressed against her. Then you need the same precaution approach to tightening the bolts on the second support. Skewed to eliminate immediately, placing the bearing metal strip. The bearings need to fill refractory lubricant. To make sure that they in no case did not get sawdust, shavings.

 

With no less care should be taken to the plane. Knives of the working body shall be securely fastened with bolts. It is worth Recalling that, when the planer is not in use, it must be closed with a special metal cover (on the drawing conventionally not shown).

 

Nuts “conveyers” in order to avoid any surprises must be washers, and other threaded connections doesn’t hurt to have a proper fastening. Before working on the machine should check how well everything is fixed. To ensure reliability V-belt transmission, turning a few times for the timing belt the crankshaft. The latter should rotate easily without jamming. And only then you can begin to work.

 

B. POTAPOV, Ryazan