SU15045A1 - Sanding machine for saw point - Google Patents

Description

In the proposed machine with an emery wheel, for a point of sawing, the rocking motion of the wheel is achieved by using an eccentric, and for clamping and non-moving the vise are placed on a sled; For nodachi saws used conventional friction mechanism and, in addition, there are mechanisms for automatically stopping the machine but the end of the passage of the saw and for backing the saw when it is refined.

In FIG. 1 shows the top view of the machine; FIG. 2 is a side view of it; FIG. 3 is a front view; flg 4, 5, 6 and 7- details of parts of the machine,

The saw is inserted into the vice 1, which moves back and forth on the slide 2 being moved around the machine table and can rotate around the axis 3, thus achieving a different inclination depending on the angle of inclination of the teeth; the fixing of the vice is achieved with the help of screws and guides 4. The vice 1 is equipped with clamping screws 5, which serve to secure the saw and, depending on its length, are moved along the slot made in the vice.

The pulley 6 transmits rotation from the transmission shaft 7 through an eccentric 9 mounted on it through the gears 8, which serves to lift and lower the lever 10, on which the emery wheel 11 is fastened in bearings. For adjusting the height of raising and lowering the circle 11, rod 12 serves The upper end of the eccentric 9p is equipped at the other end with a screw thread and a nut 13. The bearings that support the emery wheel 11 can be moved but the lever 10, thereby adjusting the correctness of the lowering of the circle on the saw. Each ring 11 is driven in rotation from the transmission through the pulleys 14 and 15, the belt drive and the pulley 16 mounted on the same axis as the emery wheel 11.

When the position of the coupling 17 is on (Fig. 1), the shaft 7 is driven into rotation by a gear transmission 8; A box 18 (Fig. 1 N 3) with a screw 19, to which the lever 20 is attached, is mounted on the shaft 7, enabling it to communicate movement. with the help of the tool below. A vertical roller 22 (Fig. 1 i 3) supported by a bracket 23, a metal disk 24 with a conically rim and a gear 25 mounted on a rail 21, mounted on the same shaft movably strengthened the lever 26 (Fig. 4) rotating the shaft about and connected to the lever 20 - to the lever 26 by means of a hinge hinge pinned dog 28, which has a conical groove, which it grips the disk 24. The lever 20, moving as the shaft 7 grows, deflects the lever 2 (together with the last dogs attached to it) grabs the disk 24, is wedged in its conical recess and rotates through a certain angle; from the angle can be changed at the screw clearance 19 of the box 18, which achieves the required feed rate corresponding to the nile pitch.

When the saw reaches the end, the screw 29 of FIG. 1) presses the lever 50 rotating about axis 31 and causes its shoulder AB to move to the right, which causes: a) switching off the coupling 17 and disengaging gear 8 from the shaft 7 and b) releasing the rod 32, which is under the action of the spring 55 unaligned towards point 31, resulting in rotation about axis 39 of lever 34-58 connected to rod 32 when the hinge is 55. At the left end, lever 34 has a rod 36 which, when the lever rotates, presses the shank 37 of the pawl 28 and moves it away from disk 24, why the saw's nodach is stopped. The feed stop (idling) is used to install a new saw or to reverse the sled for the next turning.

Rotated the lever 58 about the axis 55 in a clockwise direction (Fig. 1), return the rod 82 to its original position, as a result of which the feeder is turned off.

To eliminate the strong jitter of the saw at its point, the rod 40 (Figs. 2 and 3) is used. It is fixed on the bar 41 connected to the rod 42, on which a spring 43 is put on, in order to move the blade off the saw, it is necessary to press the pedal 44 1, 6, 7), which lowers the latch 45 with the protrusion 46, which holds the lever 7 which is able to turn around the axis 8 counterclockwise, when the rod 42, under the pressure of the lever, moves the rod 40 from the saw.

The subject of the patent.

1. A machine with an emery wheel for the NILE point, characterized by the use of: 1) to communicate the swinging movements to the emery wheel-eccentric 9 (Fig. 1-3), received rotation from the transmission, including the coupling coupling, and acting on the rod 12, adjustable in the nut 13, the support for the circle 11 levers 10, 2) for clamping and non-movement of the saw-vice 1 on the slide 2, which are moved around the machine table with a slit, for the purpose of non-movement of the screws for the nila o, and which can be turned about a fixed axis 5 together with the table board, intact x installation of the nila at the required inclination to the working plane of the emery wheel, 3) D1H of feeding the nila-normal, receiving from the shaft 7 a jog friction mechanism 18, 19, 20, 26, 88, 24, which serves to communicate with the aid of a pinion gear 2o-21 the movement of the vise 1, 4) to automatically stop the machine at the end of the passage of the nila-mechanism consisting of a spring lever 50 connected on one side with the coupling coupling 17 and on the other supporting the working period of the machine, the spring rod 32 connected articulated with lever 34-58, having on one m end a handle for manual control, and -on the other, the projection 36 to act on the shank 57 (FIG. 4, 5) of the friction dog 28 when the lever 50 is deflected with a finger 29 fastened with a vice, and o) for backing up the saw at the turning point mechanism consisting of a rod 40 connected with a spring rod 42 (FIGS. 6, 7) and through it with the lever 47 being under the influence of the latch 45-46 operated by the pedal 44.

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