JPH0632433B2 - Electronic component lead expansion device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component lead spreading device for spreading leads arranged in two rows of electronic components such as flat pack connectors.

[Background of the Invention]

When a flat pack type connector or the like is attached to a printed circuit board, the leads are usually expanded before the attachment in order to improve the efficiency of the attachment work and the accuracy of the attachment position.
Conventionally, in order to expand such a lead, as disclosed in, for example, Japanese Patent Laid-Open No. 58-128793, a guide member is positioned between the upper and lower two rows of leads and the connector and the like are arranged in the longitudinal direction of the lead. By moving relative to
A method is adopted in which the leads are gradually expanded while being guided by the inclined surface of the guide member.

FIG. 5 is a schematic perspective view of a conventional device for expanding the leads of the connector by such a method and inserting the connector into a printed circuit board, and FIG. 6 shows a part of the device expanded. It is sectional drawing shown.

In FIG. 5, reference numeral 52 denotes a movable table on which the printed circuit board 53 is set, and the movable table X is arranged along the guide shaft 60.
It can be moved in any direction. 55 is a magazine in which the connector is stored. As shown in FIG. 6, a slider 59 and a guide member 61 are provided at the lower end position of this magazine. Reference numeral 56 is a motor for moving the slider 59 forward and backward in the Y direction, and 57 is a guide member 61.
Is a pneumatic cylinder for moving.

The operation will be described. After moving the moving table 52 to position the printed circuit board 53 at a predetermined position, the motor 56
Is operated to move the slider 59 forward. Magazine 55
The connector 62 at the bottom of the part is the component receiving surface 5 of the slider 59.
9b, the connector 62 of which is mounted on the slider 5
It is pushed out together with the slider 59 in a state of being engaged with the stepped portion 59a of No. 9. As the connector 62 advances, the upper and lower two rows of leads 63 of the connector 62 are guided by the inclined surface of the guide member 61 and gradually spread upward and downward.

When the tip portion of the lead 63 has moved forward from the edge of the printed circuit board 53, the motor 56 is stopped and at the same time the pneumatic cylinder 57 is operated to move the guide member 61 back to a position where it does not engage with the lead 63. Then, the motor 56 is operated again, and the connector 62 is further advanced. When the substrate 53 is inserted between the leads 63 by a predetermined depth, the motor 56 is operated in the reverse direction and the slider 59 is retracted. This completes the positioning and attachment of the connector 62.

Even with such a conventional device, there is no particular problem when handling a conventional electronic component having a relatively large lead rigidity. However, in recent years, as the leads of electronic components have become finer and their rigidity has become smaller, buckling, deformation, and displacement of the leads due to friction with the guide member when the leads are expanded have become problems.

[Object of the Invention]

It is an object of the present invention to provide an electronic component lead expanding device suitable for expanding a fine and fragile lead having a spring property provided in an electronic component such as a flat pack type connector.

[Outline of Invention]

The present invention, the electronic component is fixed by a fixing device, while the lead expansion piece is engaged with the leads arranged in the upper and lower two rows of the electronic component, the lead is expanded by moving it vertically. The holding device holds the lead in an expanded state.

Example of Invention

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an enlarged sectional view showing an essential part of an electronic component lead expanding device according to an embodiment of the present invention, and FIG. 2 is a front view showing the overall structure of the electronic component lead expanding device. is there. The electronic component handled by this electronic component lead expanding device is a flat pack type connector 49 as shown in FIG. In this connector 49, a large number of fine leads 46 are arranged in two rows, one on one side of the housing, and tabs 48 and mounting holes 47 are provided at both ends of the housing.

In FIGS. 1 and 2, reference numeral 16 is a lead expansion piece, and as shown in an enlarged view in FIG. 4, a step difference ΔS is formed on the upper surface. The lead expansion piece 16 and the bearing box 13 are attached to each other.
It can be slid along 4 in the direction of the arrow. A compression coil spring 15 for pushing the bearing box 13 upward is attached to the shaft 14.

Reference numeral 11 denotes a micrometer head for finely moving the lead expansion piece 16 in the arrow Z direction, and the tip of the micrometer head 11 has a bearing box 13
Butting against the upper part of. 12 is a micrometer head 1
1 is a stand that supports 1 on the slide base 17. The slide base 17 has a shaft 19 through a bearing box 17.
Is supported slidably in the X direction.

Reference numeral 20 is a compression coil spring for pressing the slide base 17 to the right side in FIG. 21 is a slide base 17
It is a handle wheel attached to one end of a feed screw (not shown) that engages with. By operating the handle wheel 21 and rotating the feed screw, the slide base 17 can be moved in the arrow X direction.

Reference numeral 35 denotes a fixing block for fixing the connector 49, and one or a plurality of recesses having the same shape as the housing of the connector 49 are formed. 31 is a fixed block 35
Is a movable block that presses the housing of the connector 49 set in the recess of the connector from above, and a pressing rubber 45 is provided in a portion of the connector 49 that engages with the housing. The movable block 31 is supported by a shaft (not shown) so as to be movable in the arrow Z direction.
When the handlebar 40 is turned, a feed screw (not shown) attached to the handlebar 40 is rotated and the movable block 31 is moved up and down. A protrusion 42 a is provided on one side surface of the movable block 31, and the fixed block 35 is provided.
A protrusion 42b is provided on one side surface of the.

33a is a projection of the lead 46 on the upper side of the connector 49
It is a chuck that is sandwiched between and held in an expanded state. The chuck 33a is attached to the movable block 31 by a shaft 32 so as to be movable in the arrow X direction, and can be moved in the arrow X direction by rotating a hand knob 34 attached to a feed screw (not shown). it can. Reference numeral 33b is a chuck for sandwiching the lower lead 46 of the connector 49 with the protrusion 42b and holding the same in an expanded state. The chuck 33b is attached by a fixed block 35 so as to be movable in the arrow X direction by a shaft 36, and is moved in the arrow X direction by rotating a hand knob 38 attached to a feed screw (not shown). be able to. 39 is the base of the device.

Next, the operation of the apparatus will be described. First, by operating the handle wheel 21, the lead expansion piece 16 is fixed to the fixed block 35.
Retreat in the direction away from. In addition, the hand knob 34,
38 is operated to move the chucks 33a and 33b forward so as to move away from the movable block 31 and the fixed block 35, respectively. Further, the hand knob 40 is operated to raise the movable block 31.

In this state, the connector 49 is set in the recess of the fixed block 35. At this time, the lower lead 46 of the connector 49 has the claw 33c of the chuck 33b in the opened state.
And the protrusion 42b. (See FIG. 1).

Next, the movable block 31 is moved down by operating the hand knob 40, and the connector 49 set in the recess of the fixed block 35 is pressed and fixed by the movable block 31 via the pressing rubber 45. At this time, the upper lead 46 of the connector 49 is located between the claw 33c of the chuck 33a and the protrusion 42a (see FIG. 1).

Next, the handle wheel 21 is operated to move the lead expanding piece 16 forward to the position shown in FIG. 1 while adjusting the vertical position of the lead expanding piece 16 by operating the micrometer head 11.

Next, by operating the micrometer head 11, the lead expanding piece 16 is raised to a position where the upper surfaces of both ends 16a of the lead expanding piece 16 contact the lower surface of the tab 48 of the connector 49. The upper surface of the central portion 16c of the lead spreading piece 16 is also higher than the upper surfaces of both end portions 16a by a step ΔS. Therefore, the base portion (R portion) of the upper lead 46 of the connector 49 engages with the upper surface of the central portion 16c of the lead spreading piece 16, and the upper lead is positioned so that the base portion is located above the lower surface of the tab 48 by ΔS. 46 is expanded. In this state, by operating the hand knob 34, the chuck 33a is moved to the movable block 31 side, and the chuck 3a is moved.
The upper lead 46 is sandwiched between the claw 33c of 3a and the protrusion 42a to hold the upper lead 46 in an expanded state.

Next, by operating the micrometer head 11, the lead expansion piece 16 is lowered from the current stop position by a predetermined amount. As a result, the base portion (R
Part) is pushed down by a predetermined amount on the lower surface of the lead expanding piece 16, and the lower lead 46 is expanded. In this state, by operating the hand knob 38, the chuck 33b is moved to the fixed block 35 side, and the chuck 33c and the protrusion 42b are moved.
The lower lead 46 is sandwiched between and to keep the expanded state.

Next, by operating the micrometer head 11, the lead expanding piece 16 is returned to the height position as shown in FIG. 1, and then the handle wheel 21 is operated to operate the lead expanding piece 1.
Move 6 backwards. This completes the lead expansion operation,
It is possible to insert the printed circuit board between the upper and lower leads 46 that have been expanded.

Although one embodiment of the present invention has been described above, the present invention is not limited thereto, and a device for fixing an electronic component such as a connector, a device for holding a lead in an expanded state, and a device for expanding a lead. A device for moving the piece member may have a configuration other than the above-mentioned embodiment. Further, by providing means for detecting the position of the piece member for expanding the lead, it is easy to automatically control the movement of the piece member.

〔The invention's effect〕

As described in detail above, according to the present invention, by moving the bridge member in the direction perpendicular to the arrangement direction of the leads of the electronic component, a force is applied in the plate thickness direction of the leads to expand the leads, so that the fragile It is possible to prevent buckling of fine leads, and
Since the holding device holds the lead in the expanded state, the expansion amount can be precisely controlled.

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional view showing an essential part of a lead expanding device according to an embodiment of the present invention, and FIG. 2 is a front view showing the overall structure of an electronic component lead expanding device according to the embodiment. 3 is a schematic perspective view of a connector, FIG. 4 is an enlarged perspective view of a lead expanding piece, FIG. 5 is a perspective view of a conventional device, and FIG. 6 is an enlarged cross-sectional view of a part of the conventional device. 11 ... Micrometer head, 13, 18 ... Bearing box, 14, 19, 32, 36 ... Shaft, 16 ... Lead expansion piece, 21 ... Handle wheel, 31 ... Movable block, 33a, 33b ... Chuck, 34, 38, 40 ...
... Hand knob, 35 ... Fixed block, 42a, 42b
...... Protrusion, 46 ...... Lead, 48 ...... Tab, 49 ...... Connector.

Claims (1)

[Claims] 1. A first means for fixing an electronic component having spring-like leads arranged in two rows above and below, a second means for finely moving a lead spreading piece up and down, and the lead spreading piece for the electronic device. Third means for moving back and forth towards the part,
A fourth means for holding and holding the lead of the fixed electronic component by a chuck, while finely adjusting the vertical position of the lead expanding piece by the second means,
The third means moves the lead expanding piece forward to a predetermined position between the upper and lower leads of the electronic component, and the second means raises the lead expanding piece by a predetermined amount to push up the upper lead by a predetermined amount. The upper lead is held by the fourth means in this expanded state, and the lower lead is moved by a predetermined amount by lowering the lead expansion piece by a predetermined amount by the second means. The lower lead is held down by the fourth means while being pushed down to be expanded, and the lead expanding piece is returned to the predetermined position by the second means, and then the third lead is held. An electronic component expanding device, wherein the lead expanding piece is retracted by means.