JPH0810797B2 - Connector pin press-fitting device and backup mechanism - Google Patents

Description

The present invention relates to a connector pin press-fitting device and a backup mechanism for the press-fitting device, and an object thereof is to provide a connector pin press-fitting device having a backup mechanism capable of effectively backing up a plurality of types of connector housings. An NC table on which the back wiring board is placed,
An index table that is rotatably supported and is driven to rotate by a drive unit; and a backup unit that is attached to the index table and clamps the connector housing and contacts the connector housing with the lower surface of the back wiring board when the connector pin is press-fitted. Backup means driving means for raising the backup means to bring the connector housing into contact with the lower surface of the back wiring board, and clamping the connector pin, and press-fitting the connector pin into the back wiring board and the connector housing backed up by the backup means. And a press-fitting head driving means for driving the connector pin press-fitting head.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector pin press-fitting device for simultaneously press-fitting connector pins into a back wiring board and a connector housing, and a backup mechanism for the press-fitting device.

When assembling an electronic device such as a communication device, a plurality of printed wiring board units each having an electronic component mounted on the printed wiring board are plug-in connected to a back wiring board (hereinafter abbreviated as back board). . With this configuration, the printed wiring board units are electrically connected to each other via the backboard.

As a method of mounting a connector on such a backboard, generally, a method of mounting a connector pin which is assembled and completed by press-fitting a connector pin into a connector housing, or a connector pin being press-fitted or soldered to the backboard. There are two methods of mounting and press-fitting the connector housing into this connector pin, but in general, the method is adopted because it is low in assembly cost and suitable for mass production.

2. Description of the Related Art When mounting a connector on a backboard by the method described above, a method of mounting connector pins (press fit pins) 3 and a connector housing 5 at the same position on the backboard 1 from the front and back at the same time as shown in FIG. Is generally adopted. In FIG. 8, 1a is a through hole, and 5a
Is a connector pin press-fitting hole. In this way, when the connector pin 3 and the connector housing 5 are mounted at the same time,
Since the connector housing 5 has to be held in contact with the lower surface of the backboard, the connector housing is backed up from below by a backup head according to the shape of the connector housing.

FIG. 9 schematically shows the shape of a conventional backup head. For a connector housing 5 having a wide width as shown in FIG. 9 (A), a backup having a shape just fitted inside the housing. For the head 7, and for the connector housing 5'having a narrow width as shown in FIG. 9B, a backup head 7'corresponding to its shape is used.

Problems to be Solved by the Invention Due to diversification of product functions in recent years, the number of connectors mounted on a backboard has been diversified, and a backup head must be prepared and replaced according to the shape of the connector housing. If so, it takes a lot of time to replace the backup head, and there is a problem that the connector cannot be mounted on the backboard at the original speed of the press-fitting device.

The present invention has been made in view of such a point,
It is an object of the present invention to provide a connector pin press-fitting device having a backup mechanism capable of effectively backing up a plurality of types of connector housings.

Means for Solving the Problems The connector pin press-fitting device of the present invention which achieves the above-mentioned object, an NC table on which a back wiring board is placed, an index table rotatably supported and rotationally driven by a driving means, Attached to the index table, the connector housing is clamped, and the connector housing is brought into contact with the lower surface of the back wiring board when the connector pin is press-fitted; and the backup means is lifted to bring the connector housing into contact with the lower surface of the back wiring board. Backup means driving means for contacting with each other and connector pin press-fitting head for clamping the connector pin and press-fitting the connector pin into the back wiring board and the connector housing backed up by the backup means. Constituted by and a press-fitting head driving means for driving the connector pin press-fitting head.

In addition, the backup mechanism mounted on the connector pin press-fitting device abuts with a thickness smaller than the width inside the connector housing, and when the tip of the abutment abuts the housing bottom surface, it abuts the housing edge. A backup head body having a horizontal surface for supporting the housing and having a plurality of insertion holes into which the connector pins are press-fitted. A mounting groove is formed in the backup body, a slide piece is slidably provided in the mounting groove, and a rotating piece is rotatably mounted between a first position and a second position. A first biasing means is attached to the slide piece to press the side surface of the connector housing to hold the side wall portion of the housing in cooperation with the side surface of the receiving portion. When the rotary piece is in the first position, The rotating piece abuts on one end of the slide piece so that the first urging means presses the side surface of the connector housing.

The backup mechanism further includes a stopper member attached to the backup head body so as to support the slide piece from the opposite side of the rotating piece when the rotating piece is in the first position, and the receiving portion is inserted into the connector housing. When the connector housing is biased from the inside, the second
The urging means and the driving means for raising the backup head body to bring the connector housing into contact with the lower surface of the back wiring board are provided.

Operation When the receiving portion of the backup head is inserted into the connector housing and the rotating piece is at the first position, the side wall portion of the connector housing is sandwiched between the first urging means and the side surface of the receiving portion of the backup head, and the second urging force is applied. Means hold against the connector housing from inside. When the connector housing is raised by the driving means when the connector pin is press-fitted, the slide piece comes into contact with the already mounted connector housing, and the rotary piece is pushed down by the slide piece to rotate approximately 90 ° to the second position. As a result, the slide piece falls in the mounting groove, and the connector housing is raised by the driving means until it comes into contact with the lower surface of the backboard. When the slide piece falls in the mounting groove, the first
Although the engagement between the biasing means and the side surface of the connector housing is released, since the second biasing means biases and holds the connector housing from the inside, the positional relationship between the backup head and the connector housing does not change, and the connector pin Can be pressed into the backboard and connector housing simultaneously.

With the configuration described above, the backup mechanism of the present invention can effectively back up a plurality of types of connector housings having different widths.

EXAMPLES Examples of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a side view of an embodiment of a connector pin press-fitting device according to the present invention, and FIG. 2 is a front view of the index table shown in FIG. Reference numeral 11 is an NC table having an opening in the center, and a backboard 13 for mounting a connector is mounted on the NC table 11. Reference numeral 15 is an index table for indexing, and six cylindrical brackets 17 are fixed at equal intervals on the circumferential surface thereof. Backup head at the tip in each cylindrical bracket 17
A backup 19 formed of 20 is slidably fitted.

At the bottom dead center, the backup 19 is pushed down by a hammer 23 operated by a cylinder 21, and the connector housing 25 is clamped by the backup head 20. Slide block 27 guides at the top dead center side
It is guided by 29 so as to be movable up and down, and when the cylinder 31 is operated, the slide block 27 slides in the vertical direction via the link mechanism 33 and pushes up the backup 19.

Reference numeral 35 denotes a connector pin press-fitting head, which is swingably attached over a range of 90 ° as shown by an arrow A. A slide block 37 for lowering the connector pin press-fitting head 35 is connected to a groove cam 41 which is rotationally driven via a link mechanism 39.

However, in order to mount the connector pins and the connector housing on the backboard 13 at the same time, first, the backup 19 located at the bottom dead center of the index table 15 is lowered by the hammer 23 by operating the cylinder 21,
Clamp the connector housing 25 with the backup head 20. The index table 15 is divided by 60 °, and FIG. 1 shows a state in which the backup head 19 located at the top dead center also clamps the connector housing 25 by the backup head 20.

The backup 19 located at the top dead center is pushed up by the slide block 27 by driving the cylinder 31, and the connector housing 25 is pressed against the lower surface of the backboard 13. On the other hand, the connector pin press-fitting head 35 is the first
At the horizontal position shown by the broken line in the figure, the connector pin 45 carried on the carrier 43 is clamped as shown in FIG. 3, and the connector pin 45 is carried by the mold (not shown).
Disconnect from 43. The connector pin press-fitting head 35 having the connector pin 45 clamped is rotated 90 ° as shown by an arrow A and held vertically. When the groove cam 41 is rotated in this state, the slide block 37 descends via the link mechanism 39, the connector pin press-fitting head 35 is pushed down, and the connector pin 45 is press-fitted in the order of the backboard 13 and the connector housing 25.

The configuration of the backup head, which is another aspect of the present invention, will be described below with reference to FIGS. 4 to 7.

FIG. 4 shows a perspective view of the backup head according to the embodiment. The backup head main body 47 has a receiving portion 49 formed at the upper end thereof, the receiving portion 49 having a thickness smaller than the inner width of the connector housing 25. There is. The height of the receiving portion 49 is formed to be the same as the height inside the connector housing 25, and when the tip of the receiving portion 49 abuts the bottom surface of the connector housing 25, it is formed on the upper end portion of the backup head body 47. The horizontal surface 47a is the edge portion 25a of the connector housing 25.
To support the connector housing 25. The receiving portion 49 is formed with a plurality of insertion holes 51 into which the connector pins 45 are inserted. The insertion hole 51 formed in the receiving portion 49 has a diameter such that the connector pins do not interfere with each other.

Referring to FIG. 5, the backup head body 47 is formed with two mounting grooves 53, and slide pieces 55 are slidably provided in the respective mounting grooves 53. A leaf spring 57 is attached to the slide piece 55 so as to press-contact the side surface 25b of the connector housing 25 and hold the side wall portion of the connector housing 25 in cooperation with the side surface of the receiving portion 49. A rotary piece 59 is rotatably supported in the mounting groove 53, and the rotary piece 59 is rotated between a first position shown in FIG. 5 and a second position shown in FIG. .

When the rotary piece 59 is in the first position shown in FIG. 5, the slide piece 55 is sandwiched between the rotary piece 59 and the stopper member 61 and held in the state shown in FIG. Is pressed against the side surface 25b. As shown in FIG. 4, leaf springs 62 are provided on both end surfaces of the receiving portion 49 of the backup head body 47 so as to press-contact the inner surface of the connector housing 25 and hold it. In FIG. 5, 13 is a backboard, 25 'is an already mounted connector housing, and 45 is a connector pin to be press-fitted.

The operation of the backup head of the present embodiment constructed as described above will be described below.

When the backup head body 47 is pushed up, the slide piece 55 comes into contact with the tip of the already mounted connector housing 25 '. This state is shown in FIG. When the backup head main body 47 is further raised, the slide piece 55 is pushed down by the already mounted connector housing 25 ', and the rotary piece 59 is rotated clockwise to the second position shown in FIG. As a result, the slide piece 55 falls until it abuts the bottom surface of the mounting groove 53 as shown in FIG. Slide piece
When 55 drops, leaf spring 57 and connector housing side 25
Although the engagement of b is released and the connector housing 25 cannot be clamped by the leaf spring 57, at this time, the leaf springs 62 provided on both end surfaces of the receiving portion 49 are attached to the inner surface of the connector housing 25 as shown in FIG. Since the connector housing 25 abuts and holds it, the connector housing 25 is continuously held with its inner surface abutting the side surface of the receiving portion 49 as shown in FIGS. 5 and 6.

As shown in FIG. 6, the backup preparation is completed with the connector housing 25 in contact with the lower surface of the backboard 13, and the connector pin press-fit head shown in FIG.
Connector pin is backboard
13. The connector housing 25 is press-fitted in this order.

After mounting the connector housing 25 on the backboard 13, the index table 15 is rotated to clamp the new connector housing 25 in the next operation.

That is, when the backup 19 is pushed down by the hammer 23, as shown in FIG. 7, the rotating piece 59 in the state shown by the broken line comes into contact with the tapered surface 65a of the block 65 attached to the housing guide 63 to rotate the block. The piece 59 is rotated clockwise, and the block 65 is rotated as shown by the solid line in FIG.
It comes into contact with the vertical surface 65b of. As a result, the slide piece 55 falls and is held between the rotary piece 59 and the stopper member 61, the leaf spring 57 is pressed against the side surface of the housing 25, and the connector housing 25 is clamped by the cooperation with the receiving portion 49. To do. By appropriately controlling the X dimension, the slide piece 55 is prevented from returning when the housing is clamped.

Since the backup head of the present embodiment is configured as described above, it can be universally applied to a plurality of types of connector housings having different width dimensions. It is desirable to perform the clamp operation at the bottom dead center and the pressing operation at the top dead center at the same time, but the invention is not limited to this.

EFFECTS OF THE INVENTION Since the present invention is configured as described above in detail, it is possible to effectively back up a plurality of types of connector housings, and because it is not necessary to replace the backups according to the type of connector housing, the productivity of the connector pin press-fitting device is improved. Can be significantly improved.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of a press-fitting device according to the present invention, FIG. 2 is a front view of an index table in FIG. 1, and FIG. 3 is an explanatory view showing how a press-fitting head clamps a connector pin, FIG. Is a perspective view of an embodiment of the backup head, FIG. 5 is a sectional view of the backup head when the rotary piece is at the first position, FIG. 6 is a sectional view of the backup head when the rotary piece is at the second position, and FIG. Is a sectional view of the backup head when the connector housing is clamped, FIG. 8 is an explanatory view showing a state in which connector pins are pressed into the backboard and the connector housing simultaneously, and FIG. 9 is a schematic view showing the shape of a conventional backup head. is there. 11 …… NC table, 13 …… backboard, 15 …… index table, 19 …… backup, 20 …… backup head, 23 …… hammer, 27 …… slide block, 35 …… connector pin press-fitting head, 41… … Groove cam, 45… Connector pin, 47… Backup head body, 49… Receiving part, 53… Mounting groove, 55… Slide piece, 57,62… Leaf spring, 59… Rotating piece, 61 …… Stopper member, 63 …… Housing guide.

Front page continued (72) Inventor Yoshiaki Kawasaki 3-9-18 Shin-Yokohama, Kohoku-ku, Yokohama-shi, Kanagawa Fujitsu First Communication Software Co., Ltd. (72) Inventor Takashi Nagata 3-9 Shin-Yokohama, Kohoku-ku, Yokohama-shi, Kanagawa No. 18 in Fujitsu Daiichi Communication Software Co., Ltd. (56) Reference JP-A-62-248292 (JP, A) JP-A-62-124835 (JP, A) JP-A-62-152200 (JP, A)

Claims (2)

[Claims] 1. An NC table (11) on which a back wiring board (13) is placed, an index table (15) rotatably supported and rotationally driven by a drive means, and attached to the index table (15). , A backup mechanism (19) that clamps the connector housing (25) and abuts the connector housing (25) with the lower surface of the back wiring board (13) when the connector pin is press-fitted, and raises the backup mechanism (19). The backup mechanism drive means (29, 31, 33) for bringing the connector housing (25) into contact with the lower surface of the back wiring board (13) and the connector pin (45) are clamped, and the connector pin (4
Connector pin press-fitting head (3) for press-fitting 5) into the connector housing (25) backed up by the back wiring board (13) and the backup mechanism (19).
5) and a press-fitting head drive means (37, 39, 41) for driving the connector pin press-fitting head (35), wherein the backup mechanism (19) is a connector housing (2).
5) The receiving part (4
9), a backup head main body (47) having a plurality of insertion holes (51) into which connector pins (45) are inserted, and a backup head main body (47) slidably provided in the connector housing (25). An elastic holding means that presses against the side surface (25b) to hold the side wall of the housing (25) in cooperation with the receiving portion (49), and the receiving portion (49) is inserted into the connector housing (25). A connector pin press-fitting device comprising: an urging means (62) for urging the connector housing (25) from the inside. 2. A receiving portion (49) having a thickness smaller than the width inside the connector housing (25) and an edge portion (25a) of the housing when the tip of the receiving portion abuts the bottom surface of the housing (25). A backup head body (47) having a horizontal surface (47a) that abuts on the housing and supports the housing (25), and has a plurality of insertion holes (51) into which connector pins (45) are inserted; It is slidably provided in a mounting groove (53) formed in the head body (47) and is pressed against the side surface (25b) of the connector housing (25) so that the side wall portion of the housing (25) receives the receiving portion (49). First holding in cooperation with the side
A slide piece (55) to which a biasing means (57) is attached, and a slide head (47) rotatably attached to the backup head body (47) in the attachment groove (53) between a first position and a second position.
The slide piece (55) is supported so that the first biasing means (57) is in pressure contact with the side surface (25b) of the connector housing (25) by contacting one end of the slide piece (55) when in the position. The rotating piece (59) is attached to the backup head body (47) so as to support the slide piece (55) from the opposite side of the rotating piece (59) when the rotating piece (59) is at the first position. A stopper member (61), a second urging means (62) for urging and holding the connector housing (25) from the inside when the receiving portion (49) is inserted into the connector housing (25), A backup mechanism for a connector pin press-fitting device, comprising: a drive means for raising the backup head body (47) to bring the connector housing (25) into contact with the lower surface of the back wiring board (13).