JPH04237530A - Pressure welding machine for cord and connector - Google Patents

Abstract

PURPOSE:To inspect the connection of the pressure welded cord and connector within one revolution of the holder by arranging the holding part to hold plural connectors on a freely rotationable holder, and pressure welding the cord to the connector with the insert pressure welding mechanism at the tip end of which the insert pressure welding part is formed. CONSTITUTION:The cord is pressure welded to the connector stepwise with the insert pressure welding part 30, 31 of the pressurizing member 28, 29 within one rotation of the holder 4, and the inspection for the connection of the cord and the connector after pressure welding is executed also within one rotation of the holder 4, with the insert pressure welding mechanism 5 where the rotationable holder 4 that the holding part 3 to hold plural connectors are arranged at the same interval in the upper circumferential direction of the circumference is set, the eccentric members 24, 25 of different phase are set at the eccentric shaft 23 set at the upper side of this holder 4, and the pressurizing members 28, 29 that the insert pressure welding parts 30, 31 are formed at the tip end of each eccentric members 24, 25 are set respectively.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure welding machine for cords and connectors, and more particularly to a pressure welding machine for cords and connectors that can continuously perform pressure welding and connection inspection of cords and connectors.

0002

[Prior Art] Conventionally, in pressure welding of a cord and a connector, first the strip of the outer sheath of the cord and the tip of the core wire are trimmed using a tabletop stripper, then the cord is inserted into the connector, and the core wire of the cord is connected using a pressure welding machine. A contact is driven into the connector to press the cord and connector together, and then a continuity tester is used to test the connection, and a voltage resistance test is also performed.

0003

[Problem to be Solved by the Invention] However, in the pressure welding and inspection of the cord and connector as described above, the equipment is placed separately, so even if the equipment is connected by a chain conveyor or the like, the cord and connector cannot be connected to the equipment. It takes time to move from one place to another, and since these processes are mainly done manually, there is a problem with uneven quality.Furthermore, although it is a simple task, it is nerve-wracking and requires a lot of manual work. Therefore, there were problems such as low productivity.

[0004] In view of this, the present invention provides a cord and connector pressure welding machine that can reliably perform pressure welding of a cord and a connector and a connection inspection of a connected cord and connector without requiring much manual labor. It was done for that purpose.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention includes a holding part that holds a connector;
In a cord and connector pressure welding machine that has a pressure welding mechanism for inserting a cord into a connector and a connection inspection section between the connected cord and the connector, holding parts that hold a plurality of connectors are arranged at equal intervals in the circumferential direction. a rotatable holder, a plurality of eccentric members provided at different phases on eccentric shafts arranged at a distance from the axis of the holder, a base pivoted to the eccentric member, and an insertion pressure welding part at the tip. an insertion pressure welding mechanism having a plurality of pressing members formed therein, the plurality of pressing members can press a predetermined portion of the cord in the connector against the connector in stages during one rotation of the holder, and press the cord in the connector. The present invention is characterized in that the connection test is performed with the completed cord and connector directly facing the test section.

[0006]

[Operation] In the above cord and connector pressure welding machine,
The connector is held in holding parts arranged at equal intervals in the circumferential direction of the rotatable holder, and the insertion pressure contact parts of the pressing members provided at different phases on the eccentric shaft hold the cord in the connector in place. The parts are pressed against the connector in stages according to the rotation of the eccentric shaft, and the connection between the cord and the connector is inspected at a holding part at a different position on the holder, so that the pressure welding and connection inspection can be performed during one rotation of the holder. Can be done continuously.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained below with reference to embodiments shown in FIGS. 1 to 11.

Note that this embodiment shows a case where the cord has four core wires.

As shown in FIG. 1, the pressure welding machine 1 and its accompanying configuration include a box-shaped pedestal 2 and a rotatable holder having a holding portion 3 provided on the top of the pedestal 2 and holding a plurality of connectors. 4, an insertion press-contact mechanism 5 provided on the top of the holder 4 for press-contacting the cord to the connector, a connector storage section 6 provided on the side of the holder 4, and a connector storage section 6 from the storage section 6 to the holding section 3. It is equipped with a conveyor 7 for conveying the connector, a cylinder 8 for inserting the connector into the holding part 3, and a connection inspection part 9 provided on the upper part of the pedestal 2 to inspect the pressure-welded cord and connector. . In addition, 10 indicates a caster, and 11 indicates a receiving portion for the cord and connector that are pressed together.

The connector 12 is made of plastic or the like, and has a cubic shape as shown in FIGS. 2 to 4. On the left side in FIG. An outer skin pressure contact portion 15a is formed. A core wire insertion portion 17 into which the core wire 16 of the cord 13 is inserted is formed on the right side of the outer skin insertion portion 15, and an insertion portion 19 of the contact 18 made of a metal plate is formed above the core wire insertion portion 17. ing. Then, as shown in FIG. 4, the outer skin insertion portion 15 of the connector 12
The outer cover 14 inserted into the connector 12 is pressed into contact with the connector 12 by the insertion pressure welding mechanism 5, and the core wire 1 inserted into the core wire insertion part 17 is pressed against the connector 12 by the insertion pressure contact mechanism 5.
6 is adapted to be press-contacted to the connector 12 by press-contacting the contact 18 inserted into the insertion portion 19 by the insertion press-contact mechanism 5. Note that 20 indicates a handle portion.

The holder 4 has a box shape as shown in FIG. 5, and its four corners are cut at 45° to prevent the cord 13 from getting caught during rotation. A shaft 21 is provided at the center of the front surface of the holder 4, and this shaft 21 is pivotally supported by a casing 22 and driven in the direction of the arrow by a motor (not shown) provided inside the pedestal 2. ing. Further, U-shaped holding portions 3 for holding the connector 12 are fixed to the four sides of the holder 4 with openings in the circumferential direction.

As shown in FIGS. 5 and 6, the insertion pressure welding mechanism 5 includes an eccentric shaft 23 that is pivotally supported by the casing 22 and driven by a motor (not shown), and two shafts that are provided on the eccentric shaft 23 in different phases. It has two eccentric members 24, 25 and pressing members 28, 29 which are pivotally connected to these eccentric members 24, 25 by pins 26, 27, and the tips of these pressing members 28, 29 are provided with a shape shown in FIG. An insertion pressure contact portion 30 for inserting and pressure contacting the contact 18 into the core wire 16 of the cord 13 and an insertion pressure contact portion 31 for bringing the outer cover 14 into pressure contact with the connector 12 are formed. As shown in FIG. 5, four convex portions 32 corresponding to the number of core wires 16 (four in this embodiment) are formed on the insertion pressure contact portion 30 for the core wires 16. As shown in FIG. 6, among the insertion press-contact parts 30 and 31, the one on the left is for press-contacting the outer cover 14 to the connector 12, and the one on the right is for inserting and press-contacting the contact 18 to the core wire 16. showing something. The pressing members 28 and 29 are held by a guide member 33 and are slidable in the vertical direction by rotation of the eccentric shaft 23. Further, as shown in FIG. 6, a guide plate 34 made of spring steel or the like is provided on the left side of the pressing member 28 for inserting the cord 13 into the connector 12. This guide plate 34 is operated by a cylinder (not shown).

Further, as shown in FIGS. 7 and 8, the guide member 33 is provided with a correction piece 35 for maintaining the parallelism between the tip of the insertion pressure contact portion 31 and the upper surface of the holder 4, and a pressing member 28 shown in FIG. It is slidably provided in parallel with 29. This correction piece 35 has its lower surface contacting the upper surface of the holder 4 before the insertion pressure contact portion 31 presses against the outer skin 14 of the cord 13, so that the upper surface of the holder 4 does not stop at a horizontal position due to inertia of rotational force or the like. It is designed to return to a horizontal position if it stops tilting. In addition, the correction piece 35
is operated by a cylinder (not shown).

Next, the operation of the pressure welding machine 1 of the present invention will be explained. When the connector 12 stored in the storage section 6 shown in FIG. Ru. Then, the holder 4 rotates 90 degrees clockwise as shown by the arrow in FIG. 1, and the connector 12 from the A position moves to the B position. Then, the next connector 12 is attached to the holding section 3 at the A position. connector 1
When the holding part 3 attached to No. 2 comes to position B, the correction piece 3
5 descends toward the upper surface of the holder 4, and corrects the holder 4 so that the upper surface of the holder 4 becomes horizontal. When the correction of the holder 4 is completed, the outer skin 14 is first stripped by the guide plate 34 and the core wire 16 is removed, as shown in FIGS. 9 to 11.
The core wire 16 of the cord 13 that is protruding is inserted into the outer skin insertion part 15 of the connector 12, and then the guide plate 34 pushes the outer skin 14, so that the outer skin 14 is inserted into the outer skin insertion part 15, and the core wire 16 is inserted. It is inserted into the section 17. Then, the guide plate 34 retreats from the connector 12. Thereafter, the eccentric shaft 23 rotates, and the pressing member 28 is lowered via the eccentric member 24 and the pin 26, and the insertion pressure welding part 31 formed at the tip presses the outer skin 14 of the cord 13 with the outer skin pressure contact piece 15a of the connector 12. The outer skin 14 and the connector 12 are pressed and fixed. Next, when the eccentric shaft 23 rotates, the eccentric member 25, which is out of phase with the eccentric member 24, swings, and the pressing member 29 descends via the pin 27. Then, the insertion pressure contact portion 30 at the tip of the pressing member 29
The four convex portions 32 formed on the connector insert and press the four contacts 18 attached to the insertion portion 19 of the connector 12 against the four core wires 16, so that the contacts 18 are driven into the core wires 16. Core wire 16 and connector 12
and are fixed by pressure contact.

[0015] When the above work is completed with the holding part 3 at the B position, the holder 4 rotates 90° clockwise and moves to the B position.
The connector 12 to which the cord 13 was pressed at the position moves to the C position, and at the B position the new connector 12 and the other end of the cord 13 which was previously pressed to the connector 12 are pressed. Cord 13 and new connector 1 in position B
When the pressure welding in step 2 is completed, the connector 12 at the C position and the connector 12 at the B position are connected by one cord 13. Then, the holder 4 rotates 90 degrees clockwise, so the connectors 1 at the B position and C position are connected.
2 and 12 move to position C and position D, respectively. Here, since a touch sensor (not shown) is provided on the casing 22 directly facing the holding part 3 at the C position and the holding part 3 at the D position, the connectors 12, 12 and the cord that have been moved to the C position and the D position are connected to each other. 13, a continuity test and a withstand voltage test are performed as a connection test section 9. Then, the code 13 and connectors 12, 12 that passed the inspection are sent to the receiving section 11, and the codes 13 and connectors 12, 12 that failed the inspection are sent to the receiving section 11.
12 is designed to be removed by notifying a failure with a buzzer (not shown).

In this manner, the pressure contact between the connector 12 and the cord 13 and the connection inspection are continuously performed as the holder 4 rotates.

Although the number of core wires 16 is four in this embodiment, there is no particular limit to this number, and the number of core wires 16 is not limited to four.
Although the number of holding parts 3 disposed at four places is shown, the number may be increased depending on the work process and the number is not limited to these.

Furthermore, although the protrusion 32 is formed on the insertion pressure contact portion 30, it may be flat, but is not limited to this.

[0019]

[Effects of the Invention] As explained above, according to the present invention, there is provided a holder that can rotate holding parts that hold a plurality of connectors arranged at equal intervals in the circumferential direction, and At the same time, it has become possible to perform pressure welding and connection inspection of cords and connectors, making the pressure welding machine more compact and eliminating the need for a conveyor that moves over long distances, reducing work time.

In addition, the insertion pressure welding mechanism has a plurality of pressing members with different phases on one eccentric shaft, and an insertion pressure welding part is formed at the tip of the pressure member, and a large force can be applied at once to press against the connector. Since the force is distributed and applied in stages, it is possible to prevent deformation and cracking of the connector during pressure welding, and since these processes do not have to be done manually, both quality and productivity are greatly improved. It has effects such as:

[Brief explanation of the drawing]

FIG. 1 is a schematic front view of an embodiment of a pressure welding machine for cords and connectors according to the present invention.

FIG. 2 is a front view of the connector.

FIG. 3 is a longitudinal side view of the connector.

FIG. 4 is a longitudinal sectional side view of the connector with the cord pressure-connected.

FIG. 5 is a front view of the holder and insertion pressure welding mechanism of the pressure welding machine according to the present invention.

FIG. 6 is a partially longitudinal side view of the insertion pressure welding mechanism of the pressure welding machine according to the present invention.

FIG. 7 is a front view of the pressure welding machine according to the present invention before the correction piece comes into contact with the holder.

FIG. 8 is a front view of the pressure welding machine according to the present invention when the correction piece is in contact with the holder.

FIG. 9 is an explanatory diagram before the cord is inserted into the connector.

FIG. 10 is an explanatory diagram when a part of the cord is inserted into the connector.

FIG. 11 is an explanatory diagram of a state in which a cord is pressed into contact with a connector.

[Explanation of symbols]

1 Pressure welding machine 3 Holding part 4 Holder 5 Insertion pressure welding mechanism 9 Connection inspection section 12 Connector 13 Code 23 Eccentric shaft 24 Eccentric member 25 Eccentric member 30 Insertion pressure welding part 31 Insertion pressure welding part 35 Orthodontic piece

Claims (1)

[Claims] Claim 1: A cord and connector pressure welding machine having a holding part for holding the connector, a pressure welding mechanism for inserting the cord into the connector, and a connection inspection part for connecting the connected cord and the connector, in the upper circumferential direction. A rotatable holder with holding parts that hold multiple connectors arranged at equal intervals;
A plurality of eccentric members are provided at different phases on eccentric shafts arranged apart from each other on the axis of the holder, and a plurality of pressing members whose bases are pivotally attached to the eccentric members and whose tips are formed with insertion press-contact parts and an insertion pressure welding mechanism having an insertion pressure welding mechanism, which allows predetermined portions of the cord in the connector to be pressed against the connector in stages by the plurality of pressing members during one rotation of the holder, and inspects the pressed cord and connector. A pressure welding machine for cords and connectors, characterized in that the connection is inspected by directly facing the parts.