WO1999031703A1

WO1999031703A1 - Deflecting coil winder

Info

Publication number: WO1999031703A1
Application number: PCT/JP1997/004630
Authority: WO
Inventors: Ken Saruta
Original assignee: Nittoku Engineering Co., Ltd.
Priority date: 1997-12-16
Filing date: 1997-12-16
Publication date: 1999-06-24

Abstract

A deflecting coil winder provided with a heating device for soldering electrodes to leads sections at both ends of a deflecting coil and for shaping and fixing the deflecting coil by a single device and which can control the voltage, current, and power to be applied to the heating device in a wide range and precise level. AC current from outside to the heating device is rectified to DC current by a rectifier (102) and then is converted by pulse wave current by an inverter (104). The pulse wave current is boosted by a high-frequency insulation transformer (109) and then is supplied to a heating device (113) by switching elements (125, 126) in a switching circuit (127). When the switching element (125) is closed, the pulse wave current is boosted by the high-frequency insulation transformer (110) and is supplied to a heating circuit (113). When the switching element (126) is closed, the pulse wave is stepped down for supplying the power to the welding circuit (114).

Description

Deflection coil winding machine

The present invention relates to an improvement in a deflecting coil winding machine in which electrodes made of a conductive member are welded to lead wires at both ends of a deflecting coil, and a voltage is applied between these electrodes to form a deflecting coil. Technology background

A deflection coil used for a brown tube or the like is generally wound into a special shape such as a saddle shape due to required characteristics, and is molded and fixed so that the shape can be maintained in a state of a coil without a core.

More specifically, for the wire material for winding, for example, in order to reduce induction loss, a wire in which a plurality of covered wires insulated around a thin conductive wire are used. Winding is performed using a special mold, and the coil that has been wound is energized at a predetermined voltage to generate heat based on the resistance of the conductor, thereby heating and melting the covering material of the covered wire. Are welded to each other. As a result, the wire material increases the rigidity due to the integral wire of the covered wire, and the deflection coil retains the saddle shape without being deformed even when it is removed from the mold.

The energization after this coil winding is performed by connecting electrodes made of metal pieces to the lead wires at both ends of the wound deflection coil, and for connecting the metal pieces to these lead wires, a winding machine is used. Is provided with a welding device as shown in FIG. 33, for example. In this welding device, electrodes were pressed against both sides of a plate-shaped metal piece 202 sandwiching the lead wire 201, and the electrodes were adjusted to this electrode by a transformer 203 and a switching circuit 204. By flowing a low voltage and a large current for a short time, the insulation film of the lead wire 201 is destroyed, The metal pieces and the leads are electrically connected, and these are thermally welded.

On the other hand, energization heating for forming and fixing the deflection coil is performed by supplying a higher voltage and a smaller current to both ends of the deflection coil than in the case of welding. For this reason, a separate transformer is required for welding the lead wire of the deflection coil and for energizing and heating the deflection coil. For the winding machine, besides the welding device, for example, see Fig. 34 A heating device as shown in Fig. 36 to Fig. 36 is provided.

Among them, the current-carrying heating device shown in Fig. 34 first converts the input current (for example, commercial AC 200 V) input to the input terminal 211 into a solid state relay (SSR) 213. Then, the signal is received by the primary side of the insulating transformer 211, rectified by the rectifier 214 provided on the secondary side of the transformer 212, and supplied to the deflection coil 200. In this case, the power applied to the deflection coil 200 is adjusted by turning on and off the solid state relay 2 13 by the timer circuit 2 15. In addition, since the resistance value differs depending on the size and type (for TV and monitor) of the deflection coil 200, the voltage applied to the deflection coil 200 needs to be changed. This was done by switching the secondary tap 2 1 6 of 1 2.

In the electric heating device shown in FIG. 35, a triac 22 1 is interposed in front of the rectifier 2 14 on the secondary side of the insulating transformer 21. The voltage and current on the secondary side are detected by a voltmeter 222 and an ammeter 222 and input to the controller 222. Then, the controller 222 controls the firing angle of the triac 221 in a feedback manner, adjusts the power applied to the deflection coil 200, and absorbs the variation in the resistance value of the deflection coil. .

In addition, the current-carrying heating device shown in FIG. 36 uses the duty ratio of the current rectified by the rectifier 2 14 on the secondary side of the insulating transformer 211 to the high-speed switching of the transistor 231 (up to 200 The control can be performed by the controller 2 1 2 based on the voltage value detected by the voltmeter 2 23 and the current value detected by the ammeter 2 24. Filter the switching of transistor 2 3 1 —By performing the feedback control, the voltage applied to the deflection coil 200 is adjusted to absorb the resistance value of the deflection coil 200.

However, the current-carrying heaters shown in FIGS. 34 to 36 have the following problems.

That is, as in the energization heating device shown in FIG. 34, the on / off control of the input voltage of the commercial ill wave number (for example, 200 V AC) and the adjustment of the voltage applied to the deflection coil 200 are performed by the insulating transformer 21. It is difficult to perform fine power control by switching the two taps 2 16, and it is also difficult to absorb the effects of power supply voltage fluctuations. In addition, in the electric heating device shown in FIG. 35, the triac 221 can be controlled to fire at a frequency of about 1 kHz at the maximum, and the feedback coil is controlled. Although the controllability of the power applied to 200 and the like is improved to some extent, the variable range of the frequency is still narrow, and it is difficult to control power over a wide range. Further, the voltage applied to the deflection coil 200 cannot be increased beyond the voltage on the secondary side of the insulating transformer 211.

In addition, in the current-carrying heating device shown in FIG. 36, the transistor 231 can be controlled by high-speed switching at a frequency of about 20 kHz at the maximum, so that the controllability is improved and the deflection coil 20 is controlled. If the inductance of 0 is small or if there is a short circuit in the deflection coil 200, the inrush current to the transistor 2 31 may destroy the transistor 2 3 1 Circuit is required. Further, similarly to the apparatus shown in FIG. 34, the voltage applied to the deflection coil 200 cannot be increased beyond the voltage on the secondary side of the insulating transformer 212.

The present invention has been made in view of such a problem, and the welding of the electrodes to the lead wires at both ends of the deflection coil and the electric heating for molding and fixing the deflection coil are performed by one apparatus. In addition, a winding machine of a deflection coil equipped with an electric heating and welding device capable of controlling the applied voltage, applied current, and applied power to the deflection coil at a wide and fine precision at this time. The purpose is to provide. Disclosure of the invention

The present invention relates to a deflecting coil winding machine comprising: a wire supply mechanism for supplying a wire made of a coated conductor; and a mold for winding a wire supplied from the wire supply mechanism to form a deflection coil. A conductive member provided on both sides of the circumference of the wire supplied from the wire supply mechanism, crimping means for crimping the conductive member to the wire, and a first electrode for sandwiching the conductive material crimping portion of the wire. Welding means for applying a predetermined voltage between the first electrodes to weld the conductive member to the wire; moving means for moving the conductive member crimping portion; and the moving means. Locking means for locking the conductive member crimping portion, a conductive member crimping portion locked by the locking means, and a winding end side of the deflecting coil wound with the conductive member crimping portion as a winding start side Conductive member crimped to the crimping part Second electrodes connected to each other, energizing heating means for applying a predetermined voltage between the second electrodes to mold and fix the deflection coil, and rectification for rectifying an external alternating current to a direct current. Means, an inverter circuit for converting the DC current into a pulse wave current having a predetermined duty ratio, feedback control means for detecting the voltage or current value of the pulse wave and performing feedback control of the duty ratio, A step of receiving a wave on the primary side and stepping up and stepping down the secondary voltage at a predetermined ratio, wherein the step-up side of the step-up means is connected to the energization heating means, and the step-down side of the step-down means Switching means for connecting the welding means, and selectively switching connection of the inverter circuit to the energizing heating means or the welding means via the transformer means.

With such a configuration, first, the welding means applies a voltage to the conductive member press-fit portion of the wire by the first electrode, so that the coating of the wire is melted, and the welding member moves to the side of the conductive member to be pressed. As a result, extensive contact between the conductive member and the conductor under the coating is ensured, so that a welding process of the conductive member and the conductor is performed. Then, the moving means of the conductive member moves the conductive member crimped to the wire, and the locking means locks the conductive member. Winding is performed in the state. Then, after a new conductive member is press-bonded to the wire at the end of the winding, the energizing heating means applies a voltage to these conductive members via the second electrode, thereby forming a coil (the energizing heating step). Is performed.

In such a welding step and an energizing heating step, an alternating current from the outside is rectified into a direct current by a rectifying means, and then converted into a loose wave current by an inverter circuit. To generate a high or low voltage on the secondary side of the transformer. The connection to the electric heating means or the welding means via the transformer means of the inverter circuit is made selectively by switching means. Therefore, both heating of the deflection coil using a high voltage and welding of conductive members to the conductors at both ends of the deflection coil using a low voltage can be performed by a single device. Can be simplified. Also, by performing feedback control of the duty ratio of the pulse wave current from the inverter circuit, it is possible to precisely converge the voltage or current generated on the secondary side of the transformer to the target value.

Further, according to the present invention, there is provided a first transformer as the step-up side transformer, and a second transformer as the step-down transformer, wherein the switching means comprises a first transformer of the inverter circuit. Or, switch the connection to the second transformer.

As a result, the connection can be selectively switched by the connection switching means of the inverter circuit to the first or second transforming means, so that the heating of the deflecting coil and the leading ends at both ends of the deflecting coil can be performed. A single device can be used for both welding and welding of metal members to the transformer, and by controlling the duty ratio of the pulse wave current from the inverter circuit to the secondary side of the transformer, The convergence control of the voltage or current to be performed to the target value can be performed accurately.

Further, in the present invention, the switching means selectively switches between a connection between a pressure increasing side of the transformer and the energization heating means and a connection between a pressure decreasing side of the transformer and the welding means. .

As a result, the heating and heating of the deflection coil and the gold on the leads at both ends of the deflection coil are performed. Both welding and welding of metal members can be performed by a single device, as well as inverter circuits. By performing feed-back control of the duty ratio of the loose wave current, it is possible to accurately converge the voltage or current generated on the secondary side of the transformer to the target value.

Further, in the present invention, the inverter circuit is a chopper type inverter circuit for performing high-speed switching of a switching element such as a transistor.

As a result, the inverter circuit is switched at a high speed by a switching element such as a transistor. The duty ratio of the Loose wave current is fine and wide, and it is possible to control it.Improvement of the controllability of the voltage, current, and power applied to the deflection coil, and it is applied corresponding to various deflection coils Power can be controlled, and variations in resistance of the deflection coil can be easily dealt with.

In the present invention, the transformer is a high-frequency insulating transformer.

As a result, since the high-frequency insulating transformer separates the power supply heating means and the welding means from the inverter circuit side, even if the inductance of the deflecting coil is low or the deflecting coil has a short circuit failure, etc. However, a large current does not flow in the transistor area of the inverter circuit, and there is little danger that the transistor area will be destroyed. Also, since the high-frequency insulating transformer is small, the size of the entire device can be reduced.

Further, according to the present invention, the conductive member is constituted by a conductive strip-shaped continuous member, a means for supplying the strip-shaped continuous member to the crimping means, and a means for cutting the strip-shaped continuous member at a predetermined position. Was. This makes it possible to easily supply the conductive member to the crimping means.

Further, in the present invention, the conductive member is formed of a hoop material obtained by cutting and raising a part of a conductive strip-shaped continuous member at a predetermined interval and bending the hoop material, and supplying the hoop material to the crimping means; Means for cutting the material at a predetermined position. This facilitates pressure bonding of the conductive member to the wire. Further, in the present invention, as the wrapping material, a crimping portion to be crimped to a wire is formed at a predetermined interval by cutting and raising a part of the wrapping material. Use hoops with claws to prevent them from sticking out. With this, when the crimping portion is crimped to the wire for forming the electrode, the wire does not protrude outside the crimping portion, but is securely crimped to the crimping portion, and the electrode can be formed more reliably. .

In the present invention, the means for moving the conductive member is a wire rod supply mechanism including a movement mechanism. Thus, the conductive member crimped on the wire can be moved without using a dedicated moving means, and the configuration of the winding machine can be simplified.

In the present invention, the means for moving the conductive member is a first electrode provided with a moving mechanism and a mechanism for holding the conductive member. Thus, the conductive member crimped to the wire can be moved without using any special moving means, and the configuration of the winding machine can be simplified. Means for cutting the wire between the conductive member and the mold were provided. Thus, after molding by energizing the coil, the wire is cut between the conductive member and the mold, so that the conductive member is left pressed against the wire on the wire feed mechanism side. By locking the conductive member to the locking means and winding the next coil, one coil can be formed by using substantially only one conductive member. Therefore, it is possible to reduce the amount of the conductive rate used and the labor of the crimping operation.

Further, in the present invention, the crimping means and the first electrode are constituted by a pair of opposing members provided with an axial relative movement mechanism. Thus, the structure of the device can be simplified. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a perspective view showing a deflection coil winding machine of the present invention.

FIG. 2 is a perspective view of a pressure welding mechanism.

FIG. 3 is a perspective view of a hoop material feeding mechanism. FIG. 4 is a configuration diagram showing an electric heating and welding device of the present invention.

FIG. 5 is a characteristic diagram showing a state of current control by the inverter circuit.

FIG. 6 is a characteristic diagram showing a state of current control by an inverter circuit.

FIG. 7 is an assembly diagram showing a coil winding and a molding process.

FIG. 8 is an assembling diagram showing a coil winding and a molding process. '

FIG. 9 is a perspective view showing a long material as a conductive member.

FIG. 10 is a longitudinal sectional view showing an example of an electrode of the current welding mechanism.

FIG. 11 is a perspective view of a conductive member crimped to a wire according to the embodiment shown in FIG.

FIG. 12 is a configuration diagram showing an electric heating and welding apparatus according to another embodiment of the present invention.

FIG. 13 is a perspective view of a main part of the pressure welding mechanism and the robot hand.

FIG. 14 is a perspective view of an essential part of the pressure welding mechanism, the robot hand, and the feed mechanism. FIG. 15 is a perspective view of a part of a winding machine showing still another embodiment of the present invention.

FIG. 16 is a partial perspective view of a nozzle, a pressure welding mechanism, and a feeding mechanism showing still another embodiment of the present invention.

FIG. 17 is a perspective view of a part of a winding machine showing still another embodiment of the present invention.

FIG. 18 is a perspective view of a winding machine showing still another embodiment of the present invention. FIG. 19 is a perspective view of a winding machine showing still another embodiment of the present invention. FIG. 20 is a perspective view of a main part of a crimping part, a power supply part, and a feed mechanism.

FIG. 21 is a perspective view of a main part of a crimping section, a current-carrying section, and a feed mechanism showing still another embodiment of the present invention.

FIG. 22 is a perspective view of a main part of a crimping part, a current-carrying part, a parts feeder and a robot hand showing still another embodiment of the present invention. FIG. 23 is a perspective view of a part of a winding machine showing still another embodiment of the present invention.

FIG. 24 is a perspective view of a part of the winding machine shown in FIG. 23 in different situations.

FIG. 25 is a perspective view of a part of a winding machine showing still another embodiment of the present invention. FIG. 26 is a perspective view of a part of the winding machine shown in FIG. FIG. 27 is a perspective view of a part of a winding machine showing still another embodiment of the present invention.

FIG. 28 is a perspective view of a part of a winding machine showing still another embodiment of the present invention.

FIG. 29 is a perspective view of a winding machine showing still another embodiment of the present invention. FIG. 30 is a perspective view of a winding machine showing still another embodiment of the present invention. FIG. 31 is a perspective view of a part of a winding machine showing still another embodiment of the present invention.

FIG. 32 is a perspective view of a part of a winding machine showing still another embodiment of the present invention.

FIG. 33 is a configuration diagram showing a conventional welding apparatus.

FIG. 34 is a configuration diagram showing a conventional electric heating device.

FIG. 35 is a configuration diagram showing another conventional energization heating device.

FIG. 36 is a configuration diagram showing another conventional energization heating device. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in Fig. 1, the winding machine is a wire rod supply mechanism that supplies wire rod for coil winding. And a die 2 around which the wire 8 is wound.

The nozzle 1 is supported via a support mechanism 7 on a movable base 3 that moves in three axial directions by a front-rear motor 4, a left-right motor 5, and a vertical motor 6, and is configured to be able to move arbitrarily in three-axial directions. .

To the nozzle 1, a wire 8 to which a thin wire is twisted is guided from a wire feeding mechanism (not shown), and the wire 8 is supplied from the tip of the nozzle 1 under a predetermined tension. C Die 2 Consists of a male mold 2a and a female mold 2b provided on the same axis. Of these, the upper male mold 2a can be moved up and down by the mold vertical motor 10, and the male mold 2a and the female mold 2b can be separated vertically from each other. ing.

The male mold 2a and the female mold 2b are provided with mold motors 9a and 9b, respectively, and the male mold 2a and the female mold 2b are brought close to each other. By rotating the motors 9a and 9b synchronously, the male mold 2a and the female mold 2b rotate integrally. As a result, the wire 8 supplied from the nozzle 1 is wound into the gap formed between the male mold 2a and the female mold 2b, and the winding is formed in a saddle shape.

In order to crimp the conductive member 12 (see FIGS. 10 and 11) to the wire 8 at the beginning and end of winding of the coil, a crimp welding mechanism 13 as shown in FIG. 2 is used. Is provided on the side of the mold 2.

The pressure welding mechanism 13 includes upper and lower electrodes 14 and 15 facing each other, a telescopic cylinder 16 for driving the electrode 14 toward the electrode 15, and a cutter 17 integrally supported with the electrode 14. Prepare.

These electrodes 14 and 15 are connected to a welding circuit 114 of an energizing heating and welding device 100 (see FIG. 4) described later via wirings 91 and 92, respectively. These electrodes 14 and 15 constitute a first electrode. The wiring 91 from the electrode 14 is also connected to the energization heating circuit 113 of the energization heating and welding device 100. As shown in FIG. 3, the conductive member 12 is obtained by cutting and raising a part of a hoop material 18 that is continuous in a belt shape at a predetermined interval, and bending the hoop material 18 rearward so as to have a substantially U-shaped cross section. Yes, cut and used at 17

In addition, the press-welding mechanism 13 is provided with a cut 32 as shown in FIG. 8 (b) for cutting the wire 8. The cutout 32 has a drive mechanism (not shown) independent of the electrode 14, and cuts the wire 8 near the conductive member 12 crimped to the wire 8 and at a position on the mold 2 side.

The hoop material 18 is supplied to the pressure welding mechanism 13 via a reel 20 shown in FIG. 1 and a feed mechanism 19 shown in FIG.

The feed mechanism 19 includes a groove-shaped guide 21 extending from immediately below the reel 20 to a pressure welding mechanism 13, and a slider 23 provided in the middle of the guide 21. The slider 23 slides along the guide 21 according to the expansion and contraction of the telescopic cylinder 24 interposed between the slider 23 and the guide 21.

Rectangular notches 25 are formed at predetermined intervals on both sides of the hoop material 18, and inside the slider 23, the hoop material 18 is engaged with the notch 25 to move the hoop material 18 to the slider 23. The claws 22 that move toward the pressure welding mechanism 13 are integrally housed. The claw 22 is urged toward the inside of the slider 23 by the spring 26, and projects a wedge-shaped tip toward the inside of the slider 23 when viewed from above. The front surface of the claw 22 is perpendicular to the moving direction of the slider 18, and the rear surface is inclined so as to form an acute angle with the front surface. Thus, when the slider 23 is advanced, that is, slid toward the pressure welding mechanism 13, the hoop 18 is sent forward by the claw 22 whose tip is engaged with the notch 25 of the hoop 18. On the other hand, when the slider 23 is retracted, that is, is slid in a direction away from the pressure welding mechanism 13, the claw 22 is piled on the spring 26 and slides the inclined surface along the notch 25 while retracting, whereby the notch is formed. Since it moves to the outside of 25, the hoop material 18 remains at the same position, and only the slider 23 retreats. A chuck 27 is attached to the male mold 2 a as locking means for the conductive member 12. The chuck 27 opens and closes according to the expansion and contraction of the built-in cylinder, and the nozzle 1 moves to lock the conductive member 12 carried from the pressure welding mechanism 13 to the male mold 2a. I do. The chuck 27 is made of a conductive material, and is connected via a wiring 93 to an energization heating and welding circuit 110 of an energization heating and welding device 100 (see FIG. 4) described later. The chuck 27 and the electrode 15 constitute a second electrode.

Since the chuck 27 rotates integrally with the male mold 2a, the connection between the chuck 27 and the wiring 93 is made by the non-rotation of the base of the male mold 2a as shown in Fig. 8 (a). This is performed via a brush 30 provided in the section 2c.

FIG. 4 shows an electric heating and welding apparatus 100. This electric heating and welding device serves as electric heating and welding means in the winding machine.

In the current-carrying heating and welding apparatus 100, after the alternating current input from the external input terminal 101 is rectified into a direct current by the rectifier 102, the transistor 103 as a switching element (for example, IGBT, etc.) and a chopper-type inverter circuit 104.

As shown in FIG. 5 or FIG. 6, the transistor overnight circuit 104 converts a direct current into a high-frequency pulse wave having a predetermined duty ratio by a transistor 103 which is controlled by high-speed switching by a controller 105. And variably controls the power supplied to the high-frequency insulating transformers 109 and 110 to be described later. Specifically, for example, in the case of a duty ratio of 50%, as shown in FIG. 5 (current is represented on the vertical axis and time is represented on the horizontal axis), the on / off timing of the transistor 3 is set to 1 / 2, and in the case of a duty ratio of 25%, as shown in FIG. A pulse wave is generated.

The pulse wave after passing through the inverter circuit 4 is sent to the primary side of the high-frequency insulating transformer 109 on the boosting side via the switch 125 or to the high-frequency insulating transformer 1 on the buck side via the switch 126. Guided to the primary side of 10. In this case, the switches 1 2 5 and 1 2 6 are selectively turned on by the switching circuit 1 2 7, so that the inverter circuit 1 4 is connected to the heating circuit 1 1 3 or the welding circuit 1 1 Any one of 4 Will be connected to

The pulse wave guided to the primary side of the high-frequency insulating transformer 1109 or 110 is converted to a substantially predetermined voltage on the secondary side of the high-frequency insulating transformer 1109 or 110. That is, on the secondary side of the high-frequency insulating transformers 109 and 110, the voltage is detected by the voltage sensor 106, and the current is detected by the electric sensor 107. When the detected value is input to the controller 105, the controller 105 controls the switching operation of the transistor 103 by feedback, thereby adjusting the adjustment of the duty ratio of the pulse wave to provide high-frequency insulation. A constant voltage or current is obtained on the secondary side of the transformers 109 and 110.

As a result, on the secondary side of the high-frequency insulating transformer 109, the voltage is raised to a high voltage of, for example, 240 V, which is connected to the energization heating circuit 113. In other words, the energization heating circuit 113 applies energization heating between the electrode 14 and the chuck 27 connected to both ends of the deflecting coil after the winding, melts the coating of the winding, and creates a gap between the windings. They are made to adhere to each other to form and fix them, and require a higher voltage and lower current than in the case of welding, so that high voltage passing through the secondary side of the high-frequency insulating transformer 109 is used. Low current is supplied. A rectifier circuit 29 is interposed on the secondary side of the high-frequency insulating transformer 109 so as to rectify the current supplied to the coil 20.

On the secondary side of the high-frequency insulating transformer 110, the voltage is reduced to a low voltage of, for example, 5 V, which is connected to the welding circuit 114. That is, this welding circuit 114 welds the conductive member 12 to the lead wire at the end of the deflection coil, and requires a low voltage and a large current as compared with electric heating. A low voltage and a large current are supplied through the transformer 10.

Next, the operation will be described.

First, the step of crimping the conductive member 12 to the wire 8 will be described, and then the winding of the coil and the forming step (electric heating step) will be described.

Extend the telescopic cylinder 24 of the feed mechanism 19 to drive the slider 23 forward Then, the hoop material 18 is sent forward by the claws 22, and the leading end thereof is sent between the electrodes 14 and 15 of the pressure welding mechanism 13.

Next, the nozzle 1 is moved by operating the motors 4, 5, and 6, and the wire 8 coming out of the nozzle 1 is guided between the electrodes 14 and 15, and the rearward position located at the forefront of the hoop material 18 Between the bent portion and the unfolded portion below the bent portion.

Here, when the electrode 14 and the cutter 17 are lowered by driving the telescopic cylinder 16, the cutter 17 cuts the top end of the hoop material 18 by one span. The cut portion is crimped to the wire 8 as the conductive member 12.

On the other hand, the cut conductive member 12 is pressed against the wire rod 8 sandwiched between the electrode member 14 so that the electrode member 14 crushes the electrode member 15 against the electrode member 15 facing the electrode member 14. At the same time, a voltage is applied to the electrodes 14 and 15 from the welding circuit 114. That is, the energizing heating and welding circuit 100 is turned on by the switching circuit 127 so that the switch 125 is turned off and the switch 126 is turned on, and the welding circuit 111 is turned on via the high-frequency insulating transformer 110. Supply low voltage and large current to the side.

The heat generated by this energization melts the coating of the coated wire that composes the wire 8, and the melted coating is pushed to the side by the pressure applied to the conductive member 12, and the conductive member 12 is coated. crimp directly inner conductor of the line, the conductive member 1 2 to the wire 8 is then _c welded, described winding and molding step of the coil (current heating process).

FIG. 7 (a) shows a state in which the conductive member 12 is crimped to the tip of the wire coming out of the nozzle 1. Here, the nozzle 1 is moved to move the conductive member 12 to the male mold 2a, and as shown in FIG. 7 (b), the conductive member 12 is gripped by the chuck 27. You.

Then, the female mold 2b is moved down by the mold up / down mode 10 to bring the male mold 2a and the female mold 2b into close contact with each other, and the synchronized operation of the mold motors 9a and 9b is performed. The male mold 2a and the female mold 2b are rotated integrally. As a result, the wire 8 sent out from the nozzle 1 under a predetermined tension is wound around the gap formed between the male mold 2a and the female mold 2b. Be included. At the same time, by driving the vertical motor 6, the tip of the nozzle 1 is swung up and down as shown in Fig. 7 (c) to adjust the shape of the winding. Thus, a saddle-shaped coil is formed on the outer periphery of the mold 2.

When the winding is completed, the nozzle 1 is moved from the mold 2 to the opposite side of the mold 2 over the electrodes 14 and 15 as shown in Fig. 7 (d), so that the wire 8 guided from the mold 2 is moved. Is sandwiched between the conductive members 12. Then, a new conductive member 12 is pressure-bonded to the wire 8 as shown in FIG.

Subsequently, as shown in FIG. 8 (a), while the conductive member 12 is sandwiched between the electrodes 14 and 15, the heating circuit 1 1 3 between the electrode 15 and the chuck 27 is maintained. A predetermined voltage is applied from. That is, the electric heating and welding apparatus 100 turns on the switch 125 and turns off the switch 126 by the switching circuit 127, and the electrode 15 and the chuck 2 via the high-frequency insulating transformer 110. Supply high voltage and low current between 7

As a result, the coil 200 on the mold 2 is energized through the conductive members 12 at both ends, and the coating of the coated wire of the wire 8 constituting the coil 200 is melted by the heat generated by the energization, The twisted covered wires are welded to each other. As a result of this welding, the rigidity of the winding of the coil 200 is increased, and the coil 200 is molded so as to maintain the saddle shape even when it is detached from the mold 2.

As described above, according to the present invention, by switching by the switching circuit 127, molding by energizing and heating the deflection coil 200 using a high voltage, and leading of the deflection coil 200 end using a low voltage are performed. The welding of the conductive member 12 to the wire can be selectively performed by one device.

In addition, since the inverter circuit 104 performs high-speed switching (for example, up to about 20 kHz) by using the transistor 103, the duty ratio of the inverter circuit 104 can be changed to the deflection coil 200 by adjusting the duty ratio. It is possible to finely and broadly control the applied voltage, current, and power. Power can be controlled to a predetermined state, and variation in the resistance value of the deflection coil 200 can be easily dealt with by voltage or current feedback control.

Also, since the heating circuit 113 and the welding circuit 114 are separated from the inverter circuit 104 by high-frequency insulating transformers 109 and 110, they are short-circuited to the deflection coil 200. Even if a defect or the like occurs, there is little danger that the transistor 103 of the inverter circuit 104 will be destroyed.

Further, since the high-frequency insulating transformers 109 and 110 are used as the transformer, the size of the transformer can be reduced, and the size of the entire device can be reduced.

Now, after the deflection coil 200 is formed, the wire 8 is cut by the force cutter 32 as shown in FIG. 8 (b). Since this cutting is performed on the mold 2 side, as a result, the coil 200 has the conductive member 12 crimped only to the lead wire at the beginning of winding, and the lead wire at the end of winding remains simply cut. State. In this state, the coil 200 is removed from the mold, and the conductive member 12 is cut off. The conductive member is used only for energizing in the molding process of the coil 200 and becomes unnecessary after the completion of the coil. Therefore, one of the lead wires of the coil 200 removed from the mold already has the conductive member 12 Since they are not crimped, the labor for cutting off the conductive member 12 can be reduced.

On the other hand, on the nozzle 1 side, as shown in FIG. 8 (c), a conductive member 12 is hung in a crimped state at the tip of a wire 8 protruding from the nozzle 1. This is the same state as in FIG. 5 (a). By moving the nozzle 1 and holding the conductive member 12 again with the chuck 27, the same process is repeated for the next coil.

Therefore, only one conductive member 12 needs to be crimped to one coil, and the energization processing by the energization heating circuit 1 13 is compared to the case where the conductive member 12 is crimped to both ends of the coil. Can save a lot of time and material for crimping work without any trouble.

Further, since the nozzle 1 having the moving mechanism also serves as a moving means of the conductive member 12, There is no need to provide a separate moving means. Since the nozzle 1 guides the wire 8 to the pressure welding mechanism 13 and holds it between the conductive members 12, a special mechanism for disposing the conductive member 12 on the outer periphery of the wire 8 is not necessary. Become. Furthermore, since the nozzle 1 moves, even if the dimensions of the mold 2 are changed, the molding operation can be performed with the same equipment without any special change.

As the conductive member 12, long members 50 to 54 having various cross-sectional shapes as shown in FIG. 9 are used instead of the hoop member 18 which is partially cut and raised in FIG. be able to.

Further, the shape of the crimping means (the electrodes 14 and 15 in this embodiment) is changed according to the shape of the conductive member 12. For example, if the tip of each of the electrodes 14 and 15 is formed into a concave surface as shown in FIG. 10, the conductive member 12 pressed between the electrodes 14 and 15 becomes a wire 8 To wrap around from both sides. By continuing the pressing while applying a voltage between the electrodes 14 and 15, the coating of the coated wire constituting the wire 8 is melted and pushed to the side by the press, and the conductive member is pressed. 1 2 is crimped to the conductor inside the covered wire. FIG. 11 shows the shape of the conductive member 12 after compression by the electrodes 14 and 15 having the shape shown in FIG. Thus, the conductive member 12 can be formed in various shapes. When the conductive member 12 is molded into such a complicated shape, a mechanism such as a pressure rod to be described later is provided separately from the electrodes 14 and 15 so that the conductive member can be formed before energization. Molding and crimping of 1 and 2 may be performed.

FIG. 12 shows another embodiment of the present invention.

In this embodiment, the pulse wave current after passing through the inverter circuit 104 is led to the primary side of the high-frequency insulating transformer 108, and the voltage of the secondary side of the high-frequency insulating transformer 108 is boosted. The voltage is increased to a high voltage of, for example, 240 V in the circuit 111, and the voltage is reduced to a low voltage of, for example, 5 V in the step-down circuit 112 on the secondary side of the high-frequency insulating transformer 108. The booster circuit 1 1 1 is connected to the heating circuit 1 1 3 via the switch 1 1 5 and the step-down circuit 1 1 2 is connected to the welding circuit 1 1 4 via the switch 1 16, respectively. These switches 1 15 and 1 16 have their connections selectively switched by a switching circuit 1 17. As a result, the secondary side of the high-frequency insulating transformer 108 is selectively connected to either the energization heating circuit 113 or the welding circuit 114.

With such a configuration, similarly to the embodiment shown in FIG. 4, the energization heating circuit 113 and the welding circuit 114 can be provided in one device and selectively used. Become. Also, based on the voltage or current on the secondary side of the high frequency insulation transformer 108 detected by the voltage sensor 106 or the current sensor 107, the duty ratio of the pulse wave current from the inverter circuit 104 is determined. By performing the feedback control on the voltage, the voltage or current generated on the secondary side of the high-frequency insulating transformer 108 can be precisely controlled to the target value. In addition, since the inverter circuit 104 is separated from the energization heating circuit 113 and the welding circuit 111 by the high-frequency insulating transformer 108, even if the deflection coil 200 has a short-circuit failure, etc. In addition, a large current does not flow through the transistors and the like of the inverter circuit 104, and the risk of damaging the transistors and the like can be reduced.

FIGS. 13 (a) and (b) show still another embodiment of the present invention.

In this embodiment, instead of sandwiching the wire 8 guided from the mold 2 by the movement of the nozzle 1 between the conductive members 12, a robot hand 3 having a moving mechanism 3 4 It is sandwiched between 1 and 2. The robot hand 34 includes a pair of hand members having an opening / closing mechanism for holding the wire 8.

FIG. 14 shows still another embodiment of the present invention.

In this embodiment, the robot hand 34 of the embodiment shown in FIG. 13 is used for supplying the conductive member 12, and a position where the pressure welding mechanism 13 and the feed mechanism 19 are separated from each other. Robot hand 34 transports conductive member 12 to crimping and welding mechanism 13 It is designed to be sent. Then, the conductive member 12 composed of the hoop material 52 shown in FIG. 9 is cut by the cutter 17 provided in the feed mechanism 19, and then the crimp welding mechanism is fed from the feed mechanism 19 by the robot hand 34. Go to 1 3

FIGS. 15 (a) and (b) show still another embodiment of the present invention.

In this embodiment, the robot hand 34 is used as a means for moving the conductive member 12 crimped to the wire 8 to the chuck 27, as shown in FIG. 15 (a). 4 first moves to the crimping and welding mechanism 13 to grip the conductive member 12 crimped to the wire 8, and then moves to the chuck 27 as shown in FIG. When the wire 7 is gripped by the wire 7, the wire 8 is released. By providing the robot hand 34 as described above, the mechanism for moving the nozzle 1 can be omitted.

FIGS. 16 (a) and (b) show still another embodiment of the present invention.

In this embodiment, a moving mechanism for integrally moving the pressure welding mechanism 13 and the feeding mechanism 19 is provided, and the mounting of the conductive member 12 to the wire 8 is performed by these movements. Specifically, in FIG. 16 (a), the end fed out from the nozzle 1 is wound around a mold (not shown). From this state, the wire crimping mechanism 13 and the feed mechanism 19 are moved, and the wire 8 is sandwiched between the conductive members 12 at the tip of the feed mechanism 19 as shown in FIG. 16 (b). After performing cutting of the conductive member 12 with the cutter 17 and crimping to the wire 8 and energization through the electrodes 14 and 15 by the press-welding mechanism 13 in the same manner as in the first embodiment, The wire crimping mechanism 13 and the feed mechanism 19 are moved to their original positions. Since the nozzle 1 does not move, the conductive member 12 crimped to the wire 8 stops at the same position.

As described above, by providing the crimping welding mechanism 13 with the moving mechanism, as shown in still another embodiment of the present invention shown in FIGS. 16 (a) and (b), the electric conductor crimped to the wire 8 is provided. The elastic member 12 can be moved to the chuck 27 by the pressure welding mechanism 13. In this case, as shown in Fig. 17 (a) and (b), The pressure welding mechanism 13 holding the conductive member 12 is moved to the vicinity of the chuck 27 on the mold 2a, and the electrodes 14 and 15 are moved away from each other as shown in FIG. 17 (c). While moving, the conductive member 12 may be pushed forward by the feed mechanism 19 and held by the chuck 27.

FIG. 18 shows still another embodiment of the present invention.

In this embodiment, the press-welding mechanism 13 includes a press-contact portion 13a and a current-carrying portion 13b individually. The crimping part 13a is provided with pressure ports 39a and 39b for crimping the wire 8 with a conductive member from above and below in the vertical direction, and the conducting part 13b is provided with electrodes 40a and 4b. 0 b. The pressure rods 39a, 39b and the electrodes 40a, 4Ob are arranged parallel to the center axis of the mold 2, and the nozzle 1 is located in the direction of the center axis of the mold 2 and the direction perpendicular to the center axis. It is supported by the moving mechanism 41 in the direction. The conductive member 12 is supplied to the crimping portion 13a by the same feed mechanism 19 and reel 20 as in the embodiment of FIG. After crimping the conductive member to the wire 8 at the crimping part 13a, the nozzle 1 is moved in parallel with the center axis of the mold 2 to move the conductive member crimped to the wire 8 to the conducting part 13b. And move to energize. The conductive member crimped to the wire 8 is conveyed to the chuck 27 by moving the nozzle 1 in a direction orthogonal to the center axis of the mold 2.

FIG. 19 shows still another embodiment of the present invention.

Here, the pressure welding mechanism 13 and the chuck 27 are arranged on the same line as the nozzle 1, and the nozzle 1 is provided with a moving mechanism 42 for moving along the line. In this case, the wire from the nozzle 1 to the mold 2 passes between the electrodes 14 and 15 of the crimping and welding mechanism 13, and does not move the wire 8 in particular. Can be crimped. The conductive member pressed onto the wire 8 is conveyed to the chuck 27 by moving the nozzle 1 in a direction orthogonal to the center axis of the mold 2 as in the ninth embodiment. As described above, even when the nozzle 1 is provided with the moving mechanism, the moving direction can be limited, whereby the moving mechanism can be simplified.

FIG. 20 shows still another embodiment of the present invention. Here, the crimping welding mechanism 13 is separated into a crimping portion 13a and a current-carrying portion 13b similarly to the embodiment of FIG. 18 and the feeding of the conductive member therebetween is illustrated. This is performed by the feed mechanism 19 as described above.

In still another embodiment of the present invention shown in FIG. 21, the crimping welding mechanism 13 is separated into a crimping part 13 a and a current-carrying part 13 b, and the crimping welding mechanism 13 is provided with a transfer mechanism. ing. Then, the crimping and welding mechanism 13 moves to the conductive member 12 crimped to the wire 8 by the crimping portion 13a, so that the crimping portion 13a of the conductive member 12 moves from the crimping portion 13a to the conducting portion 13b. Make a move. Since both the crimping section 13a and the current-carrying section 13b have a function of holding the conductive member 12, a moving mechanism is provided on one of them to move the conductive member 12 to the crimping section 13. It is also possible to move from a to the conducting part 13 b. As shown in FIG. 22, the movement of the conductive member 12 from the crimping portion 13 a to the energizing portion 13 b is performed as shown in FIG. 22 by using the robot of the embodiment shown in FIGS. It may be done with hands 34.

FIG. 23 shows still another embodiment of the present invention.

This embodiment relates to the connection of the heating coil and the welding device 100 to the deflection coil 200 on the mold 2, and an electrode 43 for current supply is provided separately from the pressure welding mechanism 13. After the completion of the winding, the conductive conductive member 12 crimped to the wire 8 is moved to the electrode 43 and locked on the electrode 43. The electrode 43 has a function of clamping the conveyed conductive member 12, and a current-carrying circuit for the current-heating and welding device 100. 7 and connected to. The movement of the conductive member 12 from the pressure welding mechanism 13 to the electrode is performed by, for example, a robot hand 34 similar to the embodiment shown in FIGS. 13 and 14.

In this embodiment, as shown in FIG. 24, the wire rod 8 may be cut after the conductive member 12 is crimped after the completion of the winding. In this case, two conductive members are used for one coil.

FIGS. 25 (a) and (b) show still another embodiment of the present invention. In this embodiment, an electrode 44 configured in the same manner as the electrode 43 is provided separately from the chuck 27 on the mold 2, and a robot hand is formed in the coil forming step in the same manner as in the first embodiment. 3 4 moves the conductive member 1 2 from the pressure welding mechanism 1 3 to the electrode 4 3, and the robot hand 34 moves the conductive member 1 2 held on the chuck 27 to the electrode 44, and The coils are connected to the current-carrying heating circuit 113 by holding the conductive members 12 crimped on both sides of the wire 8 of the coil 3 and 4, respectively.

Also in this embodiment, as shown in FIGS. 26 (a) and (b), it is possible to crimp the conductive member 12 after winding is completed and then cut the wire 8. is there. In this case, two conductive members are used for one coil.

FIGS. 27 (a) and (b) show still another embodiment of the present invention.

In this embodiment, the crimping welding mechanism 13 is provided with a moving mechanism, and the conductive member 12 crimped to the wire 8 is moved from the crimping welding mechanism 13 to the electrode 43 by moving the crimping welding mechanism 13. .

FIGS. 28 (a) to (c) show still another embodiment of the present invention.

In this embodiment, the electrode 43 has a moving mechanism, and the conductive member 12 crimped to the wire 8 is moved from the pressure welding mechanism 13 to the electrode 43 by moving the electrode 43. FIG. 29 shows still another embodiment of the present invention.

Here, the present invention is applied to a winding machine provided with a fixed mold 62 and a nozzle 61 rotating via a flyer 60.

In this winding machine, the flyer 60 is rotatably supported at the base end of a fixed male mold 62 a and rotates around the male mold 62 a in response to the operation of a motor (not shown). The flyer 40 is also provided with an axial moving mechanism, and the nozzle 61 is supported at the tip of the flyer 60. The male mold 62a is fixed to the base 64, while the female mold 62b has a mechanism that moves only in the axial direction relative to the male mold 62a. The pressure welding mechanism 13 and the reel 20 are provided near the female mold 62b. In this embodiment, the winding The line is created by the rotation of the flyer 60. The movement of the wire 8 to the pressure welding mechanism 13 and the movement of the conductive member 12 to the chuck 27 are performed by the rotation and axial movement of the flyer 60. The step of forming the coil after winding is basically the same as in the first embodiment. Thus, the present invention is also applicable to a winding machine that rotates a nozzle while fixing a mold.

FIG. 30 shows still another embodiment of the present invention.

In this embodiment, in a winding machine using the same flyer 60 as the embodiment shown in FIG. 29, the robot hand 34 of the embodiment shown in FIGS. 13 and 14 is used. Using the electrodes 43 and 44 of the embodiment shown in FIGS. 25 and 26, the conductive member 12 crimped to the wire 8 is moved by the robot hand 34. By providing the robot hand 34 in this way, the axial moving mechanism of the flyer 60 becomes unnecessary. In this embodiment, since one end of the wire 8 is held by the electrode 44 via the conductive member 12 in the winding step, the chuck 27 is unnecessary. FIG. 31 shows still another embodiment of the present invention.

In this embodiment, the flyer 60 is provided with an axial moving mechanism as in the embodiment of FIG. 29, and the electrodes 43 and 44 are provided as in the embodiment of FIG. Then, the movement of the conductive member 12 crimped to the wire 8 from the pressure welding mechanism 13 to the electrode 43 and the movement from the pressure welding mechanism 13 to the electrode 44 are performed by moving the flyer 60.

FIGS. 32 (a) and (b) show still another embodiment of the present invention.

In this embodiment, the crimping welding mechanism 13 is provided with a moving mechanism, and the movement between the crimping welding mechanism 13 of the conductive member wire 8 crimped to the wire 8 and the electrodes 43, 44 is performed by a crimping welding mechanism. This is done by moving 13

As shown in the above embodiments, the present invention allows various design changes. In each of the above embodiments, the nozzle 1 is used as the wire supply mechanism. However, the wire supply mechanism may be configured using a reel or the like. Industrial applicability

As described above, the deflection coil winding machine according to the present invention welds electrodes made of a conductive member to the lead wires at both ends of the deflection coil and applies a voltage between these electrodes to form the deflection coil. In a winding machine of a deflection coil for molding, the welding of the electrode and the molding of the deflection coil are performed by a single device to simplify the device, and the voltage, current, It can be used to control power widely and precisely.

Claims

The scope of the claims

1. A wire supply mechanism for supplying a wire made of a coated wire;

A mold for forming a deflection coil by winding a wire supplied from the wire supply mechanism;

In the winding machine of the deflection coil equipped with

A conductive member disposed on both sides of the outer periphery of the wire supplied from the wire supply mechanism, and a crimping unit for crimping the conductive member to the wire;

A first electrode sandwiching the conductive member crimping portion of the wire;

Welding means for applying a predetermined voltage between the first electrodes to weld the conductive member to the wire;

Moving means for moving the conductive member crimping section,

Locking means for locking the conductive member crimping portion moved by the moving means, a conductive member crimping portion locked by the locking means, and winding with the conductive member crimping portion as a winding start side. A second electrode connected to each of the conductive member press-fitted portions crimped on the winding end side of the turned deflection coil;

Energizing heating means for applying a predetermined voltage between the second electrodes to mold and fix the deflection coil;

Rectifying means for rectifying an external alternating current into a direct current,

An inverter circuit for converting the DC current into a pulse wave current having a predetermined duty ratio;

Feedback control means for detecting the voltage or current value of the pulse wave and performing feedback control of the duty ratio;

Transformer means for receiving the pulse wave on the primary side and increasing and decreasing the secondary voltage at a predetermined ratio,

The energization heating means is connected to the boost side of the transformation means, Connecting the welding means to the step-down side of the transforming means,

Switching means for selectively switching the connection of the INNO <1 circuit to the energizing heating means or the welding means via the transformer means;

A winding machine for a deflection coil, comprising:

2. There is provided a first transformer as the step-up side transformer and a second transformer as the step-down transformer, wherein the switching means comprises the first transformer of the inverter circuit. 2. The winding machine for a deflection coil according to claim 1, wherein the connection to the second transformer is switched.

3. The switching means is characterized in that it selectively switches between a connection between the pressure increasing side of the transformer and the energizing heating means and a connection between the pressure reducing side of the transformer and the welding means. The winding machine according to claim 1.

4. The deflecting coil winding machine according to claim 1, wherein the inverter circuit is a chopper-type inverter circuit that switches a switching element such as a transistor at a high speed.

5. The deflecting coil winding machine according to claim 1, wherein the transformer is a high-frequency insulating transformer.

6. The conductive member is constituted by a conductive band-shaped continuous member, a means for supplying the band-shaped continuous member to the crimping means, and a means for cutting the band-shaped continuous member at a predetermined position. The deflection coil winding machine according to claim 1.

7. The conductive member is formed of a hoop material obtained by cutting and bending a part of a conductive strip-shaped continuous member at a predetermined interval and bending the hoop material, and a means for supplying the hoop material to the crimping means; 2. A winding machine for a deflecting coil according to claim 1, further comprising: means for cutting the coil at a predetermined position.

8. As the hoop material, a crimping portion to be crimped to a wire and a claw formed at a predetermined interval by cutting and raising a part of the hoop material to prevent the wire from creeping out of the crimping portion during crimping. Claim 7 characterized by using a hoop material provided Deflection coil winding machine.

9. The deflecting coil winding machine according to claim 1, wherein the means for moving the conductive member is a wire supply mechanism having a moving mechanism.

10. The deflecting coil winding according to claim 1, wherein the means for moving the conductive member is the first electrode provided with a moving mechanism and a gripping mechanism for the conductive member. Wire machine.

11. The deflection coil winding machine according to claim 1, further comprising: means for cutting the wire between the conductive member and the metal mold that has been newly pressed to the wire.

12. The deflection coil according to claim 1, wherein the crimping means and the first electrode are constituted by a pair of opposing members provided with an axial relative movement mechanism. Winding machine.