JPS61245480A - Method and apparatus for terminal treatment of lead - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention is applicable to winding ends of coils such as intermediate frequency transformers and power transformers around bobbin terminals, cutting them, and wrapping wires for wiring. Wrap the loop around the terminal of the printed circuit board,
The present invention relates to a lead wire terminal processing method and apparatus for cutting.

[Prior Art] In the terminal treatment of the lead wire, for example, the lead wire (31) of the winding (2) wound around the bobbin (1) as shown in FIG.
)(32)(33) are wound around the terminals (4□)(42)(43) a predetermined number of times, the excess lead wire is cut off, and the lead wire is then fixed by soldering. Most of the lead wire terminal processing was done manually. In addition, for coils that wind thin wires of 0.02 mmφ to 0.311III1φ, some are mechanized using automatic winding machines, but the coils are mechanized by using a pencil-shaped winding supply unit that rotates around the terminal. The lead wire was wound a predetermined number of times, and the excess lead wire was cut by tension cutting.

[Problems to be Solved by the Invention] The conventional manual method had the following problems.

(a) In the case of thin winding wires with a diameter of 0.02 to 0.3 mm, the lead wires are wound around the terminals using fingers, tweezers, radio pliers, nippers, etc., resulting in poor workability.

(b) It becomes necessary to use grips to grip the lead wires with fingers or tweezers, and all the materials used are wasted.

(c) After winding, the excess lead wire was cut off using a puller or nippers, so the cut end of the lead wire protruded by about 0.5 to 1.0 cm from the outside diameter of the terminal. Short circuits with adjacent terminals, etc., and soldering are likely to cause defects.

(d) In the case of a thick winding wire with a diameter of 0.3 to 1.0 mm, the burden placed on the fingertips becomes large, and the excess lead wire must be cut using scissors or the like, resulting in poor workability.

In addition, the mechanical type using a conventional automatic winding machine has the same problems as (b) and (c) above, and also has a pencil-shaped winding supply section that rotates around the terminal. Since it is wrapped around the terminals, it cannot be used for devices with narrow terminals, and
A thick winding wire with a diameter of mmφ requires a thicker pencil-shaped tip, which may damage the wire, and is also expensive.

The present invention was made in view of the above-mentioned problems, and it automatically and reliably winds the lead wire around the terminal a predetermined number of times and cuts off the excess lead wire, and also ensures that the cut end of the lead wire is not connected to the terminal. The present invention provides a method for winding the material so that it does not protrude beyond the outer diameter, and a device with a simple structure for carrying out the method.

[Means for solving the problem] The method of the present invention involves inserting a terminal into a terminal insertion hole of a hair shaft,
The lead wire in the vicinity of the terminal is captured by rotation of a cylindrical body rotatably fitted on the hair shaft, and the lead wire is captured by the friction between the hair shaft and the cylindrical body in the rotational direction. The lead wire is cut to a predetermined length, and the cut lead wire is wound around the terminal by rotation of the hair shaft.

The device of the present invention includes a shaft having a terminal insertion hole for inserting a terminal into the tip and a guide groove with the tip as a hook, and the shaft is rotatably fitted into the shaft. A cylindrical body having a guide hole on the side wall of the distal end, the distal end of which serves as a capture claw for capturing the lead wire.

The present invention is characterized in that it includes an engagement/disengagement mechanism that engages/disengages the cylindrical body from the hair shaft.

[Example] Figures 1 to 6 show an example of the apparatus of the present invention. In Figure 1, (5) is a first holder that is movable in the vertical and horizontal directions; ) is a second holder fixed to the first holder (5). Said second
The holder (6) has a bearing (7) as shown in Figure 3.
Cylindrical sliders (8t) (82) (8a) are rotatably and slidably supported by (7), and a first , second flange (Ih) (10t), (92) (102)
, (93) (10a) are formed, and cylindrical bodies (121) (122) (12a) are fixed to the lower part with set screws (11) to (11) as shown in FIG.

The side walls of the distal ends of the cylindrical bodies (121, 12t, and 123) are provided with guide holes (13) whose distal ends serve as capture claws (13) for capturing lead wires, as shown in FIG.
14) is drilled and becomes 1ζ. Motors (15□) (152) (153) are fixedly installed in the first holder (5) and are rotated by control signals from a control unit (not shown), and these motors (15□) (15t) (15s) teeth,
Each rotation shaft (
161), (162), and (163). Said rotating shaft (16t) (162)
(163) is a bearing (17) (1
7) is rotatably supported by the first holder (5) and the slider (81) (82) (83)
The shafts (19t), (192), and (19a) are fixed to the distal ends thereof with set screws (1g) (18) as shown in FIG.

The tip of the hair shaft (19t) (192) (19a) has a terminal insertion hole (20) as shown in FIG.
) and a guide groove (22) are bored therein. The slider (
8t) (8z) (83) first flange (91) (92) (
The bottle holder (23'1) that comes into contact with the top surface of (93) (2
32) (23a) is a set screw (2) as shown in Figure 3.
4), and the pin holder (231) (2
32) (233) is held by a spring (25), and an engagement hole is bored in the first flange (91) (92) (9a) of the slider (8t) (82) (83). A pin (27) is provided which engages the groove (26). In addition, this pin (27) omits the spring (25) and uses the pin holder (23t) (23t)(
233) may be directly fixed to each of the
The second holder (6) includes an air cylinder (28t
) (282) (283) are fixedly installed, and a fork-shaped operator (30t) ( 302) (30a) are fixedly installed, and these operators (30t) (302) (30
A roller (31) as shown in FIG.
) (31) are rotatably provided, and these rollers (
31) (31) is the slider (lh) (82) (8
3) first flange (9t) (92) (93) and second flange (
It is inserted between 101) (102) and (10a). Said air cylinder (281) (282) (283
) controls the piston rods (29s) (292) ( 29a ) up and down, thereby controlling the controls (30□) (302) (30a
) with rollers (31) (31) slider (81) (8
2) Slide (83) up and down, thereby rotating the rotation axis (
16, ) (162) (16a) and the respective pins (27) of the pin holders (23t) (232) (23a) and the first one of the sliders (81) (82) (83).
Each engagement groove (2) of the collar (91) (92) (93)
6), and the sliders (81) (82
) (83) second flange (10*) (102) (10
3) A pin (32,) (322) (
32a) and a corresponding locking protrusion (33) fixed to the second holder (6). At this time, the operation elements (301) (30
2) Each roller (31) (31) of (30a)
) is the first collar part (91) (92) (93) and the second collar part (1
The slider (8□) (82) (83) is configured to come into contact with only one of the sliders (8□) (102) and (103).
It is designed so that it does not interfere with the rotation of the The air cylinders (281) (282) (283), the operator (3)
01) (302) (303), pin holder (23□)
(232) (23a), slider (81) (82) (
83) and the locking protrusion (33) are connected to the hair shaft (19).
1) (192) (193) and cylindrical body (12t) (122
) (123).

Note that the air cylinders (28*) (282) (28
a) can be replaced with an electromagnetic solenoid, and by driving the movable core of this electromagnetic solenoid up and down, the control elements (30t) (302) (303) are moved up and down, and the same operation as described above is performed. You can also do this.

A support rod (37) is provided on the outside of the front surface of the first holder (5).
(37) is provided protrudingly, and this support rod (37) has a thorn shaft (19), a cylindrical body (12), and a thorn shaft (19), a cylindrical body (12), etc. ,motor(
15), etc., can be attached to the third holder (38). In Fig. 1, (39) is a bobbin holder that is movable in the front-rear direction, and on the upper part of this bobbin holder (39), there is a winding (2) similar to that in Fig. 12.
Wind the lead wire (3) (3t) of the winding (2) (
3z) (33) to the corresponding terminal (4) (4□) (42
) (43), the bobbin (1) is fixed temporarily. Note that the lower end of the bobbin (1) and the bobbin holder (
39) may be provided with a spring to enable downward movement of the bobbin (1) and to smoothen the winding of the lead wire around the terminal.

Next, the operation of the above embodiment will be explained. For ease of explanation, lead wire (32) for one terminal (42)
Explain how to wrap and cut. Other terminals (4t) (4a
) is similarly performed.

(a) In Figures 1 and 2, move the first holder (5) downward and
Insert the terminal (42) into 0). At this time, the Karaage axis (
19□) and the tip surface of the cylindrical body (122) and the bobbin (1
) is set so that the distance between the terminal planting surfaces is approximately equal to the number of turns of the lead wire (for example, 3 turns).

(b) Then, when the motor (152) rotates based on the control signal from the control section, the hair shaft (192) and the cylindrical body (122) rotate in synchronization, as shown in FIG. The catching claw (13) of the cylindrical body (122) (13) is connected to the terminal (
42) and guide it through the guide hole (14) into the guide groove (192) of the hair shaft (192).
22).

(c) The motor (152) continues to rotate, and the lead wire (
32) is wound around the terminal (42) by the tether claw (21) of the tangled shaft (192), as shown in FIG.

(d) In the state shown in FIG. 8, the air cylinder (282) is driven based on the control signal from the control section, the piston rod (292) moves downward, and the operator (302)
The roller (31) (31) is the second roller of the slider (8□).
Slide the flange (102) downward. Therefore, the pin (27) of the pin holder (232) and the first flange (92)
is disengaged from the engagement groove (27), and the pin (32) of the second flange (102) of the slider (82) is engaged with the engagement protrusion (33), and the cylindrical body (122) is engaged with the engagement groove (27). ) stops rotating, resulting in the state shown in Fig. 9. On the other hand, since the Karaage shaft (192) continues to rotate, the guide groove of the Karaage shaft (192) (
As shown in FIG. 14) is cut by rubbing against the inner edge (14a) of the side wall.

(e) Since the spindle (192) continues to rotate even after the lead wire (32) is cut, the cut end (32) of the lead wire (32)
a) is wound around the terminal (42) by the hair claw (21) of the hair shaft (192), and the cut end (32a) of the lead wire (32) is wound around the outer diameter as shown in There is no protrusion.

In the embodiment, based on the control signal from the control section.

Capturing the lead wire, winding the lead wire, and cutting the lead wire as described in (a), (b), (c), (d), and (e) above.

Although the terminal processing is performed in the order in which the lead wires are wound, the present invention is not limited to this, and the above-mentioned (a) can be performed by omitting the operation (c) based on the control signal from the control section.
Capturing, cutting, and wrapping may be performed in the order of (b), (d), and (e).

In the above embodiment, the spindles (191) (192) (1
9a) formed at the tip of each
1) By providing two (21) facing each other on both sides, the lead wire can be wound around the terminal in either direction, but when winding only in one direction, there is only one claw. It may be used alone.

In addition, two capturing claws (13) (13) are formed at the tip of each of the cylindrical bodies (12□) (122) (123) to capture the lead wires when rotated in either direction. However, if only one direction of rotation is required, only one catching claw may be used.

[Effects of the Invention] In the lead wire terminal processing method according to the present invention, the terminal is inserted into the terminal insertion hole of the hair shaft as described above.

The lead wire near the terminal is captured by the rotation of the cylindrical body that is rotatably fitted on the shank, and the lead wire is cut to a predetermined length by the friction between the shank and the cylindrical body. Since it is configured so that it can be wrapped around the terminal by rotating the shaft,
It has some unique effects.

(A) Whether it is a thin winding wire of 0.02 to 0.3 mmφ or a thick winding of 0.3 to 1.0 mmφ, the operation of winding and cutting the terminal around the terminal can be automated, and Become certain.

(B) To wrap the lead wire around the terminal and cut it.
Furthermore, there is no need for a gripper to grip the end of the lead wire, and waste of wire can be avoided.

(C) Since the lead wire is wound around the terminal even after cutting, the cut end of the lead wire does not protrude beyond the outer diameter of the terminal, preventing short circuits and soldering between adjacent lead wires, etc. No defects will occur.

(D) Since winding and cutting are performed by the cylindrical body and the spindle that rotates around the axis of the terminal, it can also be used for bobbins with narrow terminal spacing.

As described above, the device of the present invention includes a rotatable locking shaft having a terminal insertion hole and a guide groove having a locking claw;
Since it is composed of a cylindrical body in which a guide hole is formed with a trapping claw, and a locking/disengaging mechanism for locking and disconnecting the cylindrical body from the hair shaft, in addition to the effects (A) to (D) mentioned above, the device The structure of the winding machine is simpler than that of the conventional automatic winding machine, and it is extremely inexpensive (for example, 10
It can be manufactured in 1/2 times less.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the lead wire terminal processing device according to the present invention, Fig. 2 is a side view of Fig. 1, and Fig. 3 is an enlarged view of the main parts of Fig. 2 with a part cut away. . FIG. 4 is a perspective view showing the main part of the locking shaft, FIG. 5 is a perspective view showing the main part of the cylindrical body, FIG. 6 is a perspective view showing the main part of the operator of the locking/disengaging mechanism, and FIG. 10 to 10 are explanatory diagrams of the operation of the device of the present invention. FIG. 7 shows the lead wire capturing operation, FIGS. 8 and 9 show the lead wire winding operation, and FIG. 10 shows the lead wire winding operation. FIG. 11 is an explanatory view showing the cutting operation of the lead wire, and FIG.
FIG. 2 is a perspective view of the coil showing the state before end treatment of the lead wire. (3) (3□) (32) (3a)...Lead wire, (
4) (4t) (4g) (43)...Terminal, (12)
(12t) (12sr) (12a)...Cylindrical body, (13)...Capture claw, (14)...Guide hole, (1
9) (19s) (192) (193)...Karage shaft, (20)...Terminal insertion hole, (21)...Karage claw, (22)...Guide groove, (40) ...Latching/disengaging mechanism. Fig. 1 Fig. 2 Fig. ζ-11111 Fig. 3

Claims (2)

[Claims] (1) Insert the terminal into the terminal insertion hole of the Karage shaft, capture the lead wire near the terminal by rotating the cylindrical body rotatably fitted on the Karage shaft, and capture the lead wire near the terminal, and The captured lead wire is cut to a predetermined length by rubbing in the rotation direction of the cylindrical body and the cylindrical body, and the cut lead wire is wound around the terminal by rotation of the hair shaft. Lead wire terminal processing method. (2) A hair shaft with a terminal insertion hole for inserting a terminal into the tip and a guide groove with a hair claw on the tip side; It is characterized by comprising: a cylindrical body having a guide hole provided in a side wall with a guide hole whose tip end serves as a capture claw for capturing the lead wire; and a locking/disengaging mechanism for engaging/disengaging the cylindrical body from the hair shaft. Lead wire terminal processing equipment.