SU782058A1 - Device for cutting wires to stator winding machine tool - Google Patents

Description

one

The present invention relates to electrical engineering and can be used in machine tools for winding stators. electric cars.

A device for pulling 5 and segments of wire containing a leading crank, a connecting rod connected with a working body (knife), a rocker arm, a slide mounted on a connecting rod with axial movement, limited by stops, and elastic elements providing the interaction of a slide and stops 1. ,

The disadvantage of the described device is the inability to ensure the movement of the knife during a return stroke along a trajectory that does not capture the area of the magnet wire, i.e. it is impossible to obtain a short transition coil. In the finished product. A long transitional 20. coil requires additional, time spent on its completion: twist-. me, isolation, etc.

Another device is known for cutting, clamping and pulling wires, 25 comprising a base, a cutting mechanism and a cutting drive, a mechanism. This device is closest to the invention according to the technical, essence and the achieved result. 50

The cutting mechanism is a double-sided knife-hook, which is movably mounted in the slot of the rocker-clip (housing) and connected to the driven gear by means of a crank. . The rotation of the gear wheel is carried out manually and limited by the stops 2. The disadvantage of this device is the inability to move the knife by different paths during its working and reverse course, and hence the emission of short transient turns between the stator coil groups of the electric motor, i.e. It is impossible to ensure the movement of the knife during its return to the "e zone of the magnet wire, resulting in a long transition coil and additional time spent filling it.

The purpose of the invention is to increase productivity.

Claims (2)

The goal is achieved by the fact that the device contains spring-loaded stops mounted on the rotary ring / and liner, fixed on the axis of the crank and in contact with the stops, and the axis of the crank is mounted on the base. Axis execution; the crank with the leads allows, when the ring is rotated, to change the trajectory of the knife, which, depending on the position of the axis, makes a working stroke, at which the knife crosses the winding wire area and the wire is cut and clamped, as well as the idle (reverse) stroke, the path of which passes wires FIG. 1 shows a general view of the device; in fig. 2 - side view. The device for cutting the wires comprises a base 1 fixed in the working area of the machine, a cutting mechanism comprising a body 2 mounted on the ring 3, and a movable knife 4. The body 2 has a groove in which the knife 4 is installed with the possibility of reciprocating motion. The shank of the knock is fixed on the axis of the crank 5. The crank 5 is mounted on the axis 6, equipped with leads 7 and 8, interacting with spring-loaded stops 9 and 10, mounted in the rotary ring 3. On the base 1, the limiters 11 and 12 of the angle of rotation are fixed; axis b on which roller 13 is mounted; cut-off M drive (echoeniam including ring 3 mounted in guides (in fig. not shown) of base 1 with reversible movement, gear sector 14 fixed on moving ring 3, inlet gearing with a gear element The mechanism of the drive (in fig. not shown). The device works as follows .. From the drive of the mechanism through the gear sector 14, the rotation is transmitted to the movable ring 3, which during its movement (for example, clockwise) the plane A of the spring-loaded stop 9 rotates two-way axle 6 to the fixed limiter 11. With further movement of the ring 3, the spring-loaded support 10 pulls the roller 13, wring out and passes by the leash on the initial working position. When the double axle 6 is rotated, the crank 5 also rotates with it, and hence the knife shank 4 is fixed to the crank axis. During the rotation of the ring 3, the body 2, which is rotatably mounted on the ring, moves with it. The central part of the knife 4 is located in the guiding groove of the housing 2. Thus, the knife 4 performs a reciprocating movement along the groove of the housing 2 and at the same time the working part of the knife describes a circle whose center is the axis B of the rotation of the housing 2. The motion addition gives working hours: a knife that crosses the area of the nearest winding wire. In this case, the magnet wire is gripped by the working part of the knife and clamped (working stroke). After winding the required number of turns, the drive of the mechanism is turned on, and a reverse movement (counter-hour hand) is transmitted to the ring 3, Process. Repeat: spring-loaded stop 10, interacting with a double lead. axis b, rotates it to the limiter 12. Simultaneously, the crank yip 5 rotates, and hence the knife shank 4 associated with the crank 5. As the body 2 rotates together with the ring 3, the central part of the knife reciprocates along Copra 2, the working part of the knife at this time describes a curvilinear trajectory, unlike a working stroke, that lies outside the zone of the magnet wire and does not capture it. The proposed device for cutting wires, through the use of a two-axis crank axis, changes the trajectory of the working part of the knife and makes it possible to get a short transition coil after turning the stator to wind the next coil group laid on the forming tool without delaying the transition coil. The use of this invention makes it possible to shorten the stator winding time of an electric motor by eliminating the finishing operations to eliminate the long transition coil, i.e., to increase the productivity of the machine. Claim device for cutting wires to a stating machine, comprising a base, a cutting mechanism, in the body of which a movable knife is placed, one end of which is fixed to a crank mounted on an axis, and a cutting mechanism having a rotary ring, characterized in that to increase productivity, it contains spring-loaded stops mounted on a rotary ring, and drivers mounted on the crank axis and in contact with the stops, and the axis of the crank is mounted on the base. Sources of information taken into account in the examination 1. The author's certificate of the USSR 411250, cl. F 16 H 21/00, 1974. 2. Authors certificate of the USSR 276227, cl. H 02 K 15/00, 1970.