JP3003517B2 - Terminal positioning jig - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal positioning jig used in a terminal connecting machine for spot welding or soldering a terminal to each stripped core of a two-core cable.

[0002]

2. Description of the Related Art Conventionally, in the case of spot welding or soldering a U-shaped terminal having two terminal barrels to each core wire of a two-core cable, as shown in FIG. First, one terminal barrel 61a and one of the stripped core wires 62a are overlapped and set between the upper and lower electrodes 51, 52 of the spot welder 50 to perform spot welding. Next, the other terminal barrel 61b and the stripped other core wire 62b are set between the upper and lower electrodes 51 and 52 in a state of being overlapped, and spot welding is performed.

[0003]

As described above, when the terminal 61 is held by hand and spot welding or the like is performed, the terminal barrel 61 is reliably inserted between the upper and lower electrodes 51 and 52.
It is difficult to hold a or 61b, the terminal may move slightly during spot welding, and spot welding may not be performed properly.

To solve such a problem, a terminal 6
It is conceivable that the first terminal 1 is securely fixed. In that case, first, the terminal is fixed so that one terminal barrel 61a is located between the upper and lower electrodes, and spot welding is performed. Since it is necessary to fix the terminal again so that the barrel 61b is located between the upper and lower electrodes and perform spot welding, another problem arises that the welding operation is complicated and the workability is deteriorated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a terminal positioning jig which can securely hold a terminal at a work position and has good workability.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a positioning method of a terminal used in a terminal connecting machine for spot welding or soldering a terminal to each stripped core wire of a two-core cable. A jig for use, comprising a base installed in front of the terminal connection machine, and a terminal fixing member slidably attached to the base, wherein the base is provided in a sliding direction of the terminal fixing member. On both sides, the terminal fixing member has a regulating surface formed of a ferromagnetic material that regulates the sliding amount by contacting the terminal fixing member to the same length as the core wire spacing at the terminal connection position. A terminal accommodating groove for accommodating the terminal such that a connection portion between each terminal and each core wire of the terminal protrudes from the upper surface thereof, and a contact surface with the regulating surface formed by a magnet. There is provided a determining jig.

Further, the regulating surface may be formed by a magnet and the contact surface may be formed by a ferromagnetic material, and the terminal receiving groove may be formed in a U-shape.

[0008]

The terminal positioning jig constructed as described above sets the base so that the connection portion of the terminal on the other side comes to the working position while the terminal fixing member is in contact with one of the regulating surfaces. Then, by sliding the terminal fixing member, the connection portion on one side of the terminal set in the terminal accommodating portion always comes to the working position. At this time, the terminal fixing member is securely held in contact with the regulating surface of the base by the attractive force of the magnet, so that no positional displacement occurs during the connection operation.

In the case where the terminal accommodating groove is formed in a U-shape, the terminal accommodating groove accommodates both a U-shaped terminal having two connection portions with a core wire and a set of two terminals on the left and right sides. Can be.

[0010]

Embodiments will be described below with reference to the drawings. As shown in FIG. 3, a positioning jig 10 for this terminal is used.
Is a lifting table 30 installed in front of the spot welding machine 20.
And a U-shaped terminal B having two terminal barrels b as shown in FIG. 4 (a) on each of the stripped core wires a of the two-core cable A, and FIG. ), The terminals B and C are positioned when spot-welding loose terminals such as a pair of terminals C on the left and right as shown in FIG.

As shown in FIGS. 1 and 2, the terminal positioning jig 10 includes a base 11 set on the upper surface of the lift 30 and a terminal fixing member slidably mounted on the base 11. And a member 15.

As shown in FIG. 1, the terminal fixing member 15 has a U-shaped terminal receiving groove 16 for receiving the terminals B and C with the terminal barrels b and c protruding forward. The rear wall is formed with a ridged slider 17 that fits into a slide guide 13b described later, and the right and left side walls 18 are entirely provided with magnets that form a contact surface with an iron plate 14 described later. A plate 19 is stuck.

The base 11 is formed by forming a recess 13 for accommodating the terminal fixing member 15 in a plate-like block 12 having a certain thickness. The slider 1 in the left-right direction.
A groove-shaped slide guide 13b into which the groove 7a is fitted is formed. Further, a thin iron plate 14 is adhered to the entire surface of the left and right side walls 13c so that an attractive force acts between the terminal plate 15 and the magnet plate 19 of the terminal fixing member 15.

The length of the recess 13 in the front-rear direction is substantially the same as the length of the terminal fixing member 15 in the front-rear direction, and the length in the left-right direction is longer than the length of the terminal fixing member 15 in the left-right direction by a predetermined length. The terminal fixing member 15 is slidable left and right within the recess 13 by the predetermined length. Here, the predetermined length is a distance L between the two terminal portions 16a and 16b of the U-shaped terminal receiving groove 16, and by sliding the terminal fixing member 15, one of the two terminal portions 16a and 16b is used. At a fixed position on the base 11.

The terminal positioning jig 10 constructed as described above has a terminal portion on the other side of the terminal accommodating groove 16 in a state where the terminal fixing member 15 is in contact with the iron plate 14 constituting the restriction surface on one side. After setting the base 11 on the elevating platform 30 so that 16b is located in front of the upper and lower electrodes 21 and 22,
The terminal B is set in the terminal receiving groove 15. At this time, the terminal barrel b on the other side of the terminal B is located between the upper and lower electrodes 21 and 22.
And spot welding is performed by superposing the core wire a on the other side of the two-core cable A.

Then, when the terminal fixing member 15 is slid to the other side, the terminal fixing member 15 is pulled by the attraction force of the magnet plate 19, and the terminal fixing member 15 is securely brought into contact with the iron plate 14, which is the regulating surface on the other side. Touch At this time, since the terminal barrel b on one side of the terminal B is located between the upper and lower electrodes 21 and 22, the core wire a on one side of the two-core cable A is overlapped on the terminal barrel b on one side and spot-welded. I do.

In this embodiment, the U-shaped terminal B has been described.
If each of the terminals C is individually set in the linear portion of the U-shaped terminal receiving groove 16, spot welding can be performed by the same operation.

In this embodiment, the magnet plate 19 is provided on the terminal fixing member 15 side and the iron plate 14 is provided on the base 11 side. Conversely, the magnet plate is provided on the base side and the iron plate is provided on the base side. It may be provided on the terminal fixing member side.

Further, in this embodiment, the case where the positioning jig is used in the spot welder 20 has been described. However, the present invention is not limited to the spot welder, and may be used in, for example, a soldering device for performing soldering. You may.

[0020]

Since the terminal positioning jig of the present invention is constructed as described above, the connection portion of the other terminal comes to the working position when the terminal fixing member is in contact with one of the regulating surfaces. When the base is set, the connection portion on either side of the terminal set in the terminal accommodating portion can be easily and surely held at the working position only by sliding the terminal fixing member. For this reason, work such as spot welding or soldering can be reliably performed, and workability is also improved.

In particular, in the case where the terminal accommodating groove is formed in a U-shape, the terminal accommodating groove accommodates both a U-shaped terminal having two connection portions with a core wire and a pair of left and right terminals. Therefore, there is no need to separately prepare a terminal fixing member having a terminal accommodating groove having a different shape according to the terminal shape, which is excellent in versatility.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment according to the present invention.

FIG. 2 is a sectional view of the same.

FIG. 3 is a side view showing a usage example of the above.

FIG. 4 is a plan view showing terminals used in the positioning jig according to the first embodiment.

FIG. 5 is a perspective view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Positioning jig 11 Base 13b Slide guide 14 Iron plate 15 Terminal fixing member 16 Terminal accommodation groove 17 Slider 19 Magnet plate 20 Spot welder 30 Elevating table

Claims (3)

(57) [Claims] 1. A terminal positioning jig used for a terminal connecting machine for spot welding or soldering a terminal to each of the stripped core wires of a two-core cable, the jig being provided in front of the terminal connecting machine. A base, and a terminal fixing member slidably attached to the base, wherein the base has a sliding amount by contacting the terminal fixing member on both sides in the sliding direction of the terminal fixing member. The terminal fixing member has a restricting surface formed of a ferromagnetic material that restricts the length to the same length as the core wire spacing at the terminal connection position. The terminal fixing member has a connection portion with each core wire of the terminal protruding from the upper surface thereof. A terminal positioning jig having a terminal accommodating groove for accommodating a terminal and having a contact surface with the regulating surface formed by a magnet. 2. A terminal positioning jig used for a terminal connecting machine for spot welding or soldering a terminal to each of the stripped core wires of a two-core cable, the jig being installed in front of the terminal connecting machine. A base, and a terminal fixing member slidably attached to the base, wherein the base has a sliding amount by contacting the terminal fixing member on both sides in the sliding direction of the terminal fixing member. The terminal fixing member has a restricting surface formed by a magnet for restricting to the same length as the core wire interval at the terminal connection position, and the terminal fixing member is configured such that a connection portion of each terminal with each core wire protrudes from the upper surface thereof. A terminal positioning jig having a terminal accommodating groove for accommodating a terminal and having a contact surface with the regulating surface formed of a ferromagnetic material. 3. The terminal receiving groove is U-shaped.
Or the jig for positioning a terminal according to 2.