JPS6212647B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for terminal processing a high-frequency coil having a pot-shaped core, and in particular, in the process of winding a lead wire drawn out from the winding of a bobbin to a terminal, the lead wire is quickly The present invention relates to a method for processing the terminals of a high-frequency coil that can reliably provide sufficient slack.

FIG. 1 shows the high-frequency coil with the pot-shaped core 1 removed. As shown in this figure, if the lead wire 4, which has been wound around the bobbin 3 fixed to the base 2 and then pulled out, is tied to the terminal 5 under tension, when the core 1 is placed over the bobbin 3, The lead wire 4 is pushed off at the lower end 1a of the core 1. Therefore, in order to prevent the lead wire 4 from breaking in this way, it is necessary to provide the lead wire 4 with enough slack to prevent it from being cut by the core 1 when the lead wire 4 is tied to the terminal 5. There is. Conventionally, this work has been done manually by holding the lead wires with a jig or the like, but this has the drawback of being complicated and time-consuming.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate such conventional drawbacks and provide a terminal processing method that can quickly form slack in a lead wire by automation and can significantly improve workability.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings, taking as an example a case in which the lead wires of the high frequency coil shown in FIG. 1 are tied.

In FIG. 2, 6 is a chuck of a winding machine, and the chuck 6 is designed to hold and rotate a bobbin 3 of a high frequency coil. A cylindrical sleeve 7 is attached to cover the outer periphery of the chuck 6, and its inner diameter is approximately the same as that of the core 1 shown in FIG. The sleeve 7 is movable in the axial direction of the chuck 6, and is automatically moved in the direction of the arrow by known means such as a cam or a pulse motor. This FIG. 2 shows the state when winding is applied to the bobbin 3, and at this time the sleeve 7 is retreated to the left in the figure. After the wire is hooked onto the bobbin 3, the chuck 6 is rotated to wind the wire around the bobbin 3.

FIG. 3 shows a step in which the lead wire 4 drawn out from the winding wire is tied to the terminal 5 after the winding work is completed. At this stage, the sleeve 7 has moved to the right until its tip 7a reaches a deeper position than the lower end 1a of the core 1 when it is placed over the bobbin 3. With the sleeve 7 stopped at this position, the lead wire 4 is pulled out toward the terminal 5 through a groove (not shown) formed on the side surface of the base 2 and is tangled with the terminal 5. When the tying work is completed, the excess lead wire 4 is cut off, and the sleeve 7 retreats to the left and returns to its original position.

Although the case where the lead wire at the end of winding after winding the bobbin 3 is tied up has been described above, the lead wire at the beginning of winding can also be tied up in exactly the same manner. That is, when starting winding, first, in the state shown in FIG. 2, the wire is wound about half a turn around the bobbin 3 at the winding start position. Next, after pulling out the lead wire in the direction of the terminal 5 through the groove in the side surface of the base 2, the sleeve 7 is advanced as shown in FIG. 3, and the lead wire can be tied in this state.

As described above, the coil terminal processing method according to the present invention provides a movable sleeve on the outside of the chuck that holds the high-frequency coil, and connects the lead wire to the terminal with the sleeve placed over the bobbin deeper than the core. It is characterized by being dark.

According to the present invention, since the lead wire is tied by placing the sleeve over the bobbin deeper than the core, the sleeve presses down the lead wire, creating sufficient slack in the lead wire, so that when the core is attached to the bobbin, The lead wire will not be cut by the core. Further, since one sleeve can hold the lead wire in any direction, and the movement of the sleeve is simple, it is easy to automate the movement of the sleeve. Therefore, it is possible to provide slack in the lead wire quickly and reliably, and the work of tying the lead wire to the terminal can be performed extremely efficiently.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an example of a high frequency coil with the core removed, and FIGS. 2 and 3 are process diagrams showing an embodiment of the present invention. 1...core, 3...bobbin, 4...lead wire, 5...terminal, 6...chuck, 7...sleeve.

Claims (1)

[Claims] 1. A chuck that holds a high-frequency coil and a sleeve that is movable in the axial direction of the chuck are provided on the outside of the chuck, and in the process of connecting the lead wire pulled out from the winding of the bobbin to the terminal, the sleeve is attached to the pot-shaped core. A high-frequency coil terminal processing method characterized by covering the bobbin to a deeper position than that covered by the bobbin.