JPS5841268B2 - Automatic winding machine chuck drive device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a chuck drive device for an automatic winding machine, and particularly to an automatic winding machine for making a coil by winding a wire around a core having a plurality of terminals (multi-terminal core). The present invention relates to a chuck drive device for a core chuck device used for.

INDUSTRIAL APPLICABILITY The present invention is useful when applied to, for example, a case where a converter transformer for a calculator is manufactured by winding a wire around a drum-shaped core having ten terminals.

A multi-terminal core has a structure in which multiple terminals are erected on one end of a petal-shaped base and a drum-shaped core is fixed to the other end. The core δ is rotated a number of times according to the winding pattern.
A converter transformer or the like is manufactured by winding the wire rod in this way and then twisting the starting end, the terminal end, or the intermediate portion of the wire into different terminals.

Conventionally, to make such a transformer, winding the wire and attaching it to the terminals was done manually, which was extremely inefficient.

In particular, in this type of transformer, the number of turns of the coil must be precisely determined, so manual winding cannot provide satisfactory accuracy.

Furthermore, the work of tying off the terminals is extremely time-consuming.

The present invention automatically uses a single machine to automatically process everything from supplying the core to tying various wires according to the winding pattern, winding the coil, cutting the end of the wire after tying, and taking out the coil after wrapping. It is an object of the present invention to provide a chuck drive device for a core chuck device applied to an automatic winding machine that can perform wire winding efficiently and accurately.

The chuck drive device according to the present invention has a rotatably held core chuck device, and winds a coil by holding a core with a terminal in the chuck and rotating it around its axis, and then attaching the core to the chuck. In an automatic wire winding machine of the type that winds a terminal by rotating a fixed wire rod delivery nozzle around the terminal, a chuck gear fixed to a chuck sleeve can be engaged with and disengaged from the chuck gear. A winding gear supported movably in an axial direction, a drive motor that rotates the winding gear at a predetermined amount of rotation, and a cam device that moves the winding gear in the axial direction. That is.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a longitudinal sectional view showing an embodiment of a chuck driving device in a core chuck device of an automatic winding machine to which the present invention is applied.

First, this core chuck device has a collet chuck 15 that chucks a core (not shown in FIGS. 1 and 2).
has.

In the collet chuck 15, a collet 17 is inserted into a chuck sleeve 20 that is rotatably supported by a winding machine main body 18, and a compression spring is inserted between a flange 21 formed at the rear end of the collet shaft and the rear end of the sleeve 20. 22, and an air cylinder 19 is attached to the main body 18 behind the collet shaft.

As will be described later, a plurality of V-shaped grooves 23 are formed on the outer periphery of the chuck sleeve 20 and are spaced apart in the circumferential direction.
A check gear 24 is also mounted near the rear end of the sleeve 20.

The collet 17 is projected forward from the chuck sleeve 20 by the air cylinder 19, and the recess 17a at the tip thereof is
For example, after installing the collar of a multiterminal drum-shaped core, when the air cylinder 19 is deenergized, the collet 17 is pushed into the sleeve 20 by the spring force of the compression spring 22, thereby causing the core to close its terminal portion. is exposed to the front and is chucked.

Such a collet chuck 15 includes a chuck fixing device 25 (second
) is connected to a chuck rotation drive device 16 that rotates the collet and chuck sleeve 20 about their axis via a transmission mechanism 53 when winding a coil around the core.

FIG. 2 is a sectional view taken approximately along the line 1--2 in FIG. 1, mainly to show the chuck fixing device 25. As shown in FIG.

Referring to this figure, the collet chuck 15 is fixed, that is, the collet is fixed against rotation by the chuck sleeve 2.
This is done by engaging a stopper bar operated by a cam with a plurality of V-shaped grooves 23 formed on the outer periphery of the 0.

That is, the chuck fixing device 25 of this embodiment includes a plurality of V-shaped grooves 23 formed on the outer periphery of the chuck sleeve 20 of the core chuck device 15, and a radius of the sleeve 20 adjacent to the V-shaped grooves 23. A stopper rod 27 is pivotally connected to the winding machine main body 18 extending in the direction (transverse to the longitudinal direction of the sleeve 20) and pivotally supporting the sleeve at an intermediate portion thereof, and a stopper rod 27 is pivotally connected to the winding machine body 18 by a pin 29, and a stopper rod 27 is attached to the midsection of the stopper rod 27. a V-shaped protrusion 28 formed therein, a tension spring 29 installed between one end 27a of the stopper rod 27 and the main body 18, and a cam follower rod 3 capable of contacting the other end 27b of the stopper rod 27.
0 and a cam 26, and when the cam driven rod 30 is separated from the other end 27b of the stopper rod 27 depending on the rotational position of the cam 26, the V-shaped groove 23 and the protrusion 28 are pulled together by the tension spring 29. The rotation of the chuck sleeve 20 is fixed by the engagement, and the rotation of the cam 26 brings the cam driven rod 30 into contact with the other end 27b of the stopper rod 27 and pushes it up, so that the V-shaped groove 23 and the V It is configured so that the engagement with the letter-shaped protrusion 28 is released.

Note that the reference numeral 54 indicates a compression spring for keeping the cam follower rod 30 in constant contact with the cam 26.

Referring again to FIG. 1, the chuck rotation 1 drive device 16 of the collet chuck 15 transmits rotational force from the pulse motor 31 to the spline shaft 35 via the pulleys 32, 33 and the belt 34 connecting these. By meshing a winding gear 36 attached to a spline shaft 35 with a chuck gear 24 fixed to the chuck sleeve 20 of the collet chuck 15, the chuck sleeve 20 is driven to rotate around its axis.

A spline sleeve 37 is attached to the spline shaft 35 so as to be movable in the axial direction.
The winding gear 36 is fixed to the end of the winding gear 36.

One end of a cam lever 38 pivotally mounted on a cam lever shaft 45 is connected to a spline sleeve 37 by a pin 39, and a cam roller 40 is attached to the other end of the lever.

This cam roller 40 engages with a winding cam 41.

In addition, as shown in FIG. 2, the cam shaft 42 of the wire-wound cam 41
is pivotally supported by the winding machine main body 18, and the cam 26 of the chuck fixing device is fixed to the other end.

Further, the camshaft 42 is connected via a suitable joint 43 to a suitable drive source for vertically moving a wire feeding nozzle, which will be described later, for rotation.

In FIG. 1, the cam lever 38 is biased by a tension spring 44 so that its cam roller 40 always engages the winding cam 41.

During the terminal tightening operation, which will be described later, the cam lever 38 is moved to a position where the flyline sleeve 37 and the winding gear 36 are removed from the chuck gear 24 (the position shown by the imaginary line in FIG. 1) depending on the rotation angle position of the winding cam 41. Therefore, the rotational force of the pulse motor 31 is not transmitted to the chuck sleeve 20 (at this time, the sleeve is fixed by the fixing device 25), and the coil winding is performed by the winding cam 41 during operation. According to the rotational position, the spline sleeve 37 is moved in the opposite direction by the cam lever 38 and the tension spring 44, and the winding gear 36 and the chuck gear 24 are engaged with each other, and the fixing device 25 is released from the chuck. A rotational drive of the sleeve 20 is provided.

In this way, the chuck fixing device 25 and the chuck rotation driving device 16 operate in conjunction with each other by the cams 26 and 41 of the camshaft 42.

Next, a mode of chucking a core provided with a terminal and winding a coil with the above-mentioned core chucking device will be described.

As shown in FIG. 3, a wire rod delivery nozzle 50 faces the front surface of the collet chuck 15 of the core chuck device, and a coil wire 51 is fed out from this nozzle under a constant tension.

First, the wire feeding nozzle 50 is inserted into one of the cores 11 with terminals.
After the terminal is untangled by rotating around the terminal 14, the nozzle 50 is lowered as shown in FIG. At the same time, the collet chuck 15 of the core chuck device rotates around its axis, thereby winding the coil.

The number of windings is determined by the rotation speed of the pulse motor 31 (not shown in FIGS. 3 and 4).

In this case, it is preferable to control the rotation amount according to a preset digital switch program using a given winding pattern.

For example, if the rotation amount of the pulse motor can be controlled up to 1/10 rotation, the coil can be wound in a winding pattern of 0.1 turns.

When tightening the terminal 14 as shown in Figure 3,
That is, when the wire feeding nozzle 50 is rotating around the terminal, the rotation of the collet chuck 15 is fixed by the chuck fixing device, and as shown in FIG. 4, the nozzle 50 is lowered and the collet chuck 15 is rotated. In this case, the rotation of the nozzle 50 is fixed by a device not shown.

The automatic winding drive device according to the present invention is an automatic winding device that winds a coil around a core with multiple terminals in various winding patterns, cuts the wire near the terminals, and automatically performs this process. It is useful when applied to wire machines, and enables mass production of this type of coil.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of a core chuck device to which the present invention is applied, FIG. 2 is a sectional view taken approximately along the line ■-■ in FIG. 1, and FIGS. 3 and 4 are FIG. 6 is a diagram showing a state in which a core with a terminal is held in a core chuck device according to the present invention and a coil is wound thereon. 11... Core with terminal, 15... Collet chuck,
16... Chuck rotation drive device, 18... Winding machine main body, 20... Chuck sleeve, 23... V-shaped groove, 25... Chuck fixing device, 28... ■-shaped projection , 26... Wall 41... Winding cam, 51... Wire rod, 53... Transmission mechanism, 54... Compression spring.

Claims (1)

[Claims] 1 It has a core chuck device that is rotatably held, and the core with the terminal is held in check and the core with the terminal is rotated around its axis to wind the coil, and the chuck is fixed and the wire feeding nozzle is fixed to the terminal. In an automatic winding machine that winds a terminal by rotating it around a chuck sleeve, a chuck gear is fixed to a rotatable chuck sleeve, and an axis is attached to a spline shaft so that the chuck gear can be engaged with and detached from the chuck gear. a drive motor that rotates the winding gear at a predetermined amount of rotation via the spline shaft; A chuck drive device for an automatic wire winding machine, characterized in that it has a moving cam device.