SU553031A1 - Spring Coiler - Google Patents

Description

one

The invention relates to the field of machine tools, in particular, to the designs of machine tools for the manufacture of products from irowalls, and, mainly, for workers.

A spring coiling machine is known that contains frame-mounted and kinematically coupled iridescent driving rollers, an iodic device, a mandrel, a walking foot, a pressure roller, a cutting device and is adjustable in the radial direction relative to the axis of the mandrel, and a radius stop.

The disadvantages of the known automaton include the fact that the length of the finished spring on the output part of the mandrel influences the shape of the subsequent turns, and to change the direction of the winding spring and the automaton, it is necessary to readjust the automaton and replace the winding tool.

The aim of the invention is the creation of an automatic machine for winding springs of any diameter and etching with straight ends without changing the winding tool, as well as the length of the finished and spring at the entrance of the circuit.

This is achieved by the fact that the mandrel has a channel in the winding plane, and the input part of the mandrel is a plane perpendicular to the wire feed direction, and the output part has radius

Cuttings, the radius of which is the inside of the inner radius of the spring, taking into account the angle of springing, this wiring device is fixed on the frame sharnnrno. FIG. I shows the described automatic machine for winding and shaping the outside: us; in fig. 2- mandrel cross-section along the winding plane; in fig. 3 - kinematic diagram of the mechanism of the automatic machine navivkn; on fng. 4 - types of hovering irrules.

The machine contains feed rollers 1 (see Fng. 1), a chuck foot 2, a mandrel 3, a slider 4, on the shaft 5 of which there is a radius stop 6 with a holder 7, a setting bar 8 for the wires installed in the iodine bearing 9, seated on axis 10, and the shaft II with the roller 12 on the lever 13. In addition, the machine includes a rocker mechanism 14 (see f) g. 3), the overtaking mechanism 15, raspalondemntely shaft 16 with cams, as well as the restrictive screw 17, shoulder 18 powers) sy 7 and emphasis 19.

The machine works as follows.

The position shown in FIG. 1, corresponds to the moment before cutting off the finished spring. After turning on the machine, the shaft 11 by the roller 12 through the lever 13 rotates the guide bars 8 around the axis 10. As a result of the relative displacement of the guide bars 8 and the mandrel 3, the wire is cut off from the wire. Under the action of the spring, the guide bars 8 return to their original position before the limit screw 17 so that the channels under the wire in the mandrel 3 and the guide bars 8 stand coaxially with each other. Then the wire is fed by the feed rollers 1 and the end of it is ready the spring is pushed out of the mandrel 3. After that, the slider 4 with the radius stop 6 moves towards the fed wire. The working part of the radius stop 6 is L-shaped and is located slightly below the wire feed line, so the end of the wire does not touch the Uior 6 when it is moving in opposite directions. At the appropriate length of the fed wire, the shoulder 18 of the holder 7 of the radius stop 6, the meeting on its way is the non-adjustable adjustable stop 19, rotates with the holder 7 around the shaft of the slide block 4. During the turn of the holder, the working part of the radius stop b grips the wire, bends it along the radius, and stands in working position. After winding the required number of turns at this position of the tools, the slider 4 moves back and the radius stop 6 rises to its original position. At this time, the wire, along with the wound part of the spring, is fed forward so long that, after the Spring segments, it has the right end of the required length. The feed rollers 1 stop, stopping the wire feed, and the roller 12, receiving movement from the lever 13 of the shaft II, shifts the guide bars 8 relative to the mandrel 3 and cuts off the finished thread. Further, the cycle of winding is repeated.

Claims (1)

Invention Formula A spring coiling machine containing mounted on a bed and kinematically associated driving drive rollers, wiring device, mandrel, step foot, pressure roller, cutting device and adjustable in the radial direction relative to the axis of the mandrel, radius stop, characterized in that, in order to expand the technological capabilities, the mandrel has a channel in the winding plane, and the input part of the mandrel is a plane perpendicular to the direction wire feed, and the output part has radial chamfers, the radius of which is the inner radius of the coiled spring, taking into account the angle of spring, while the wiring device is fixed on the sharpipe stapipa. Vuz.l 9G If, A A I i rff-ii | P h II Jl   I H I "5 d | fi ft 1 Tuwr Ml I-fhl 1V ... t j FIG. four