SU20316A1 - A machine for drilling knots in planks and forming a cut on the walls of the resulting hole - Google Patents

Description

In this machine, for reproducing the work required, a spindle with a drill and a tap at one end and two cuts at the other is used to screw them into the fixed nuts in order to feed the tools during working spindle rotation and unscrewing these tools from products.

In FIG. 1 and 2 depict two side views of the machine.

Drill 1 and tap 2 are fixed in spindle 3 fitted with two cuts 4 and 5 intended to be screwed into fixed nuts b and 7 fixed in frame 8. On spindle 3 there are fixed two bevel gears 9 and 10 interlocking with bevel gear 11, fixed on the same axis 12 with the cylindrical wheel 13 interlocking with the gear 14, which is under the influence of the spring 15 and fixed on the axis 16. The latter is located inside the sleeve 17 placed in the bed 8, inside of which is also located the rod 18 of the button 19, eni the purpose of engaging a gear wheel 14 with the wheel 13 and for closing when this current in the motor. To the frame 8 is pivotally attached to the lever 20, equipped with a tooth 21 for

fixing the button attached to the button, by pressing it, the position and the protrusion 22 to act on the ring 23 attached to the spindle 3 in order to lower the spindle. The end of the spindle is connected to the crossbar 24, through which the rod 25, equipped with adjustable stops 26, 27 and 28, of which the stop 26, through the cross member 24 and the rod 25, is passed, is intended to act on the lever 29 pivotally attached to the frame 8 and provided with a protrusion 30, and the stops 27 and 28 are intended to act on the axle lever 31 connected to the base 8 to disengage the bevel wheels under the influence of the spring 32. A clamp 34 is attached to the cross member 24 by means of which cable 35, load 36, pre assigned to lift shpiydel 3 and its flange 37 exposing the protrusion 22 of the lever 20, the purpose of turning off the button 19 and reset all the mechanisms of the machine to its original position.

Moving the button 19 in the direction of the arrow a (Fig. 1), turn on the current to the engine, and also engage gear 14 with wheel 13, which in this case will result in rotation, through the bevel gears 11 n 9, spindle 3 together with enshrined

therein a drill 1 and a tap 2. After that, lower the lever 20, which with the prong 21 fixes the position of the button 19, and with the projection 22 press the ring 23 fixed on the spindle 3, as a result of which the latter moves in the direction of the arrow b, and cutting it 4 screwing into the fixed nut b, and drill 1, moving together with spindle 3, will drill a hole in the board. Upon completion of drilling, the thread 5 of the spindle 3 will begin to be screwed into the fixed nut 7, and at the same time the tap 2 will reproduce the thread in the drilled hole. At the end of the cutting, the cross member 24 presses the abutment 26 fixed to the rod 25, as a result of which the end 38 of the latter presses the lever 29, the protrusion 30 of which will press the sleeve 39 and move it in the direction of the arrow b. When this happens, the wheel 9 will be released from the engagement with the wheel 11, and the wheel 10 will turn on, as a result of which the spindle 3 will begin to move in the direction of the arrow c, and its cuts 5 and 4 will be unscrewed from the nuts 7 and 6. After this, under the action of the stop 28, lever 31 will release lever 30, whereby with the help of spring 32 gear 10 turns off and gear 9 turns on; at the same time, under the action of the load 36, the spindle 3 will move in the direction of the arrow c, and the shoulder 37 will press the protrusion 22 of the lever 20, which will lift and release the button 19, as a result, under the action of the spring 15, the gear 14 turns off and the current is opened to the engine.

The subject of the patent

1. A machine for drilling knots in planks and forming a cut on the walls of the resulting hole, characterized by the use of spindle 3 (Fig. 1, 2, carrying drill 1 and tap 2, balanced by a weight 36 and equipped with two cuts 4 and 5 d; the purpose of feeding the tool, screwing it into the fixed nuts 6 and 7 when the spindle is working and unscrewing at the return idle movement of the same spindle.

2, In the machine tool described in subsection 1, the use of a mechanism for starting the machine into operation consisting of; 1) from button 19 (FIGS. 1, 2) for closing the current in the engine and coupling gear 14 to wheel 13, transmitting through the wheels 11, 9 and 10 rotation of the spindle, and 2) from lever 20 fitted with a tooth 21 for fixing the attached when the button is pressed into position and with the protrusion 22 for lowering the spindles for inserting the cut 4 into the nut b.

3. In the machine described in paragraph 1, the use of a mechanism for communicating the reverse rotation to the spindle and its subsequent stopping, consisting of a rod 25 (FIG. L) with adjustable stops 26, 27 and 28, of which the stop 26 serves to influence it crossbar 24 with spindle, in order to lower the lever 29 and the coupling. using the protrusion 30 on it of the upper wheel 10 with the wheel 11, and the stop 27 is designed together with the stop 28 acting on the spring lever 31, to release the lever 29 after unscrewing the thread 4 from the nut for uncoupling the wheel And the upper wheel 10 and the clutch under the influence of the spring 32 of the lower wheel 9, and also for the purpose of lifting under the action of the load 36 by the flange 37 on the spindle 3 of the lever 20 and releasing the button 19 to return it and the wheel 14 by the spring 15 to its original position.