SU103071A1 - Nest milling machine in the rear legs of chairs - Google Patents

Description

Known machines for simultaneous drilling of sockets in the rear legs; chairs do not provide for milling of all the sockets on the inpaiBoii well of the rear arms.

In order to eliminate the noted deficiency in the described automaton, ten self-propelled drilling heads were used, which were placed in two mutually perpendicular planes on movable supports supported on frames brought in reciprocating two;

FIG. 1 shows a side view of the machine; in fig. 2 - in the llap: in FIG. 3 -: from the end.

Avchomat is fully electrified. It has ten working shndeldey and consists of a frame (1) and supports (2), (3), (4), (5), (6) and (7), mounted on movable frames (8), (9) and (10).

The caliper (2) is equipped with two working electric motors (I), on the shafts of which at both ends there is a hardened drill chuck) (12).

Suppor-t mounted ice angle of 8-12 ° to the plane of the table. This angle can be varied within the specified limits with the help of a wedge (13), inserted into or extended by the arrow O-P npsi screw (14).

The movement of the sunport is reciprocating. The opo is judged by the mechanism of the Krivop1i-Shatunn1ggz mechanism.

(15) from the electric motor (16) through the gearbox (17), bevel gear (18) and gear cylindrical gear (19).

The caliper (3) has one working electroplating tool (20), the shaft of which is provided with drilling cartridge (21).

The movement of the caliper (3) is similar to the movement of the caliper (2) and comes from the same electric motor with a gearbox, but via a bevel gear (22) and a notched gear: 23 (23) with the help of a crush mechanism (24).

The supports (2) and (3) are mounted on the movable frame (8). The movement of the frame is reciprocating.

The supports (4) and (6) each have one electric motor (25) and (26), on the shafts of which the drill bits (27) and (28) are fixed.

The movement of the supports (4) and ir (6) is returnable and is carried out by the tgr-and the help of the curvature of the meteorological mechanisms: the support (4) from the mechanism (29), the support (6) from the mechanism (30).

Both crank-and-crank mechanisms are mounted on one shaft (31) and set in motion from electric drive (16) via gear (17) and bevel gear (18).

The supports (5) and (7) each have 1) of the working motor (32) and (33), on the shafts of which the drill chucks are fixed.

The movement of the supports (5) and (7) is analogous to the movement of the supports (O and (6),

however, their path is longer. It is carried out with the help of crank mechanisms: the support (5) from the mechanism (34) and the support (7) from the mechanism (35).

Both crank mechanisms are mounted on the same shaft and are driven from the electric motor (16) via a gearbox (17) and a bevel gear (22).

The supports (4) and (5) are mounted on the movable frame (9), and the sui-norts (6) and (7) are mounted on the frame (10). Dvilgenie frames - reciprocating.

Eccentrics were used to change the amplitude of coloration of each head, depending on the specified socket length in the workpiece, and a cam camshaft (36) was used to automate the clamping of parts in the processing and pushing position after machining.

The sequence of operation of the machine is as follows. All the calipers by means of the connecting rod-crank mechanisms make reciprocating movements.

When the frame (8) with -sunorts (2) and (3) begins, lt of the extreme right position, the frame (10) with sunsieres (6) and (7) goes down, and the frame (9) with calipers (4) and (5) rises.

The frame (8), having reached the leftmost position, begins the reverse movement, the frame (10) is the first one, and it does not rise.

During the movement of the frames (9) and (10) in one and the same direction, release the machined part, throw it out of the machine, feed and clamp the next part to the machining position.

Subject invention

Claims (5)

1.Automatic machine for milling nests in the rear legs of chairs, made in the form of a multi-station unit equipped with loading magazines and automatic devices for feeding parts, characterized in that ten self-propelled machines were used to ensure the milling of all the nests on the right and left rear legs drilling heads, placed in two; reciprocating psr pendulum planes on movable calipers, mounted on frames, retractable, flashing by means of a crank rod nisms. 2. The form of execution of the automaton according to claim 1, characterized in that, in order to avoid idle strokes of horizontal heads, a two-sided arrangement of drill chucks is used on both sides of each motor shaft. 3. The form of execution of the automaton according to claim 1, characterized in that, in order to change the amplitude of oscillations of each head, depending on the predetermined length of the socket, eccentrics are used. 4. An automaton according to claim 1. characterized in that it uses their weight for the return stroke of vertical multi-orts, and for the working stroke - a shaft with eco-centers at the ends. 5. An automaton according to claim 1, characterized in that a cam camshaft is used to automate the clamping of parts in the machining position and push them out during machining. i-. 20 27 25