JPH04169088A - Pin automatic assembly device - Google Patents

Abstract

PURPOSE:To carry out pin mounting automatically and highly efficiently by providing a connector housing carrier means, by which a connector housing is sent to a fixed pin receiving point, and which has an oscillation mechanism for giving oscillation to the connector housing so as to help the tentative inserting of a pin through tare into a hole part. CONSTITUTION:A connector housing carrier means 51, by which a connector housing 12 is sent to a fixed pin receiving point, and which has an oscillation mechanism 52 for giving oscillation to the connector housing 12 so as to help the tentative inserting of a pin 4 into a hole part 13 by tare, is provided. The carrying of the housing 12 from other point to the pin receiving point is facilitated and expedited by the housing carrier means 51, and the tentative inserting of pins 4... can be immediately carried out, while the housing 12 and the pin 4 are oscillated at the same time by a time oscillation mechanism 52, and the pin is thus tentatively inserted promptly. The carrying and transfer can be promptly carried out by the housing carrier means 51 directly thereafter. The pin assembly can thus be automatically carried out with high efficiency.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an automatic connector pin assembly machine.

[Prior art and problems to be solved by the invention] Connectors generally used for wiring electronic devices, etc. are composed of a plastic box-shaped connector housing and a plurality of conductive pins inserted into the connector housing. Ru.

The fit tolerance between the hole of the connector pin and the pin is small, and in the past, the pins were manually inserted one by one into such holes, resulting in poor work efficiency.

Further, the connector in which a large number of pins have been temporarily inserted into the holes of the connector housing must be transferred to the next pin press-fitting process (using a press) while maintaining the connector in a normal posture. That is, it is necessary to store and transport the pins that have been temporarily inserted manually while keeping them from falling out, and this storage and transport is troublesome.

[Means to solve the problem]

The present invention is an automatic pin assembling machine that inserts a plurality of pins into holes in a connector housing. The connector housing is provided with a means for conveying the connector housing having a vibration am that assists temporary insertion into the hole by its own weight.

[Function] The vibration mechanism also vibrates the connector housing and the pin, making it easier for the pin to be temporarily inserted into the hole of the connector housing due to its own weight.

Moreover, since the housing conveyance means itself has this vibration mechanism, it is easy to transport the housing from another location to the pin receiving position and to transport the housing after the pin is temporarily inserted.
It can be carried out continuously and with high efficiency.

〔Example〕

Hereinafter, the present invention will be explained in detail based on illustrated embodiments.

In the plan view of FIG. 1, reference numeral 1 denotes a strip material conveying means, which is wound in a hoop shape around a support rotatable around a vertical axis 2, and feeds out the strip material 3 in the direction of arrow A. , feed B is given intermittently. As shown in FIG. 2 or 3, this band material 3 has a comb-teeth shape in which a large number of pin materials 4a are connected in parallel with each other by tie bars 5. For example, the comb-like band material 3 is integrally formed by punching out a thin metal plate using a press, and the tie bar 5 is located slightly above the vertical center of the pin material 4a in FIGS. 2 and 3. placed in the position, and
In the case of rotation, the lower end 6 side is formed in a tapered or stepped shape so that the width is narrow, and a small locking protrusion 7 is provided near the lower side of the tie bar 5. There is.

As is clear from the plan view in Fig. 1, the two comb-like strips 3.3 are horizontally aligned so that they are parallel to each other on the downstream side, and each is in an upright position. , give feed B.

9 is a positioning means, which uses a fluid cylinder or the like to move the arrow C.
It has a positioning pin 10 that reciprocates in the direction, and is inserted from the orthogonal direction between adjacent pin materials 4a, 4a in FIGS. 2 and 3 to perform positioning in the feeding direction.

Reference numeral 11 denotes a cutting means for cutting the tie bars 5 shown in FIGS. 2 and 3 to separate the pin materials 4a, and obtaining the pins 4 in an upright position as shown in FIG. It is. The pin material 4a for one stroke, which is intermittently fed by the above-mentioned strip conveying means 1, is cut and separated, and all the pins 4 necessary for one connector are get to.

In FIG. 4, a total of 12 pins, 7 short pins 4 in FIG. 2 and 5 long pins 4 in FIG. This example shows a situation where the file is inserted into...

In Fig. 1, the two strips 3 and 3 are fed at the same time, so the total number of pins 4 separated from both strips 3 and 3 is:
This corresponds to the number required for one connector.

The connector housing 12 has a box shape with a bottom and an upward opening made of an insulating material such as plastic or glue.

FIG. 5 is a plan view specifically showing the main part of FIG. 1 in cross section, and a structure symmetrical with respect to the D-D line is provided (in the lower half of the figure), but it is not shown. It is.

In this FIG. 5, 14 is a vertical plate, and a strip material guide plate I5 is provided close to and parallel to this vertical plate I4, and the strip material 3 of FIG. 2 slides into the gap 16. It is sent while doing so.

The band material conveying means 1 includes a feed pawl 18 that is swingable around a shaft 17.
, an elastic member (not shown) that resiliently biases the feed claw 18 in the E direction, and an actuator 19 such as a fluid cylinder that reciprocates the feed claw I8 in the directions of arrows F and G. When moving in the direction of arrow F, the tip 20 of the feed claw 18 is inserted between the pin materials 4a, 4a of the strip material 3 as shown in FIG. 6, is locked, and the strip material 3 is sent downstream. However, on the contrary, when moving in the direction of arrow G, the escape slope surface 21 is moved to the fifth position so that it floats against the above-mentioned elastic member and is released from the lock.
Shape as shown in the figure. Further, a long hole-shaped window 22 is provided in the strip guide plate 15 to allow the toe 20 to reciprocate.

Further, in FIGS. 5 and 7, the positioning means 9 is shown more specifically, and the positioning pin 10 can freely enter and exit into the gap 16 through a small hole provided in the strip guide plate 15. As shown in FIG. 7, adjacent pin materials 4a of the strip material 3
, 4a, and positioning of this strip material 3 in the feeding direction is performed.

Next, the cutting means 11 will be explained. Reference numeral 23 denotes a cutting blade mounting block, which has a recess 24 and a guide hole 26 penetrating the bottom wall 25 forming the recess 24, into which a shear blade holder 27 is slidably fitted. A compression spring 28 is interposed between the holder 27 and the bottom wall 25. A recess 29 is formed in the jar blade holder 27, and a guide hole 30 is provided through the bottom wall forming the recess 29.
The presser blade 31 is fitted into the recess 29 and inserted into the guide hole 30 and the guide hole 26 so as to be able to slide back and forth.

32 is a fluid cylinder, a shearing blade mounting plate 33 is fixed to the piston rod, and a shearing blade 34 is fixed to the mounting plate 33, and this shearing blade 34 is connected to the presser blade 31 (as shown in FIG. They are assembled in sliding contact so as to be relatively movable (in the vertical direction) and inserted into the guide hole 30.26 in the state shown in FIG.

Reference numeral 35 denotes a compression spring, which is interposed between the mounting plate 33 and the presser blade 31, and is used to obtain elastic pressing force by which the tip surface 31a of the presser blade 31 elastically presses the strip material 3. .

As is clear from FIG. 9, the upper surface 36 of the presser blade 31 is formed with an uneven strip having a rectangular wave shape in cross section, while the lower surface 37 of the shearing blade 34 is formed with an uneven strip that meshes with this uneven strip with high precision. A concavo-convex strip is formed that is relatively slidable in the direction. FIG. 8 shows the shearing blade 34 seen in a plan view, and the convex strip 38 on the lower surface 37 projects by a small dimension from the tip surface 34a to form a small rectangular parallelepiped-shaped cutting edge 39.・
... is the gap 16 in FIG.
The correspondence is as shown in FIG.

That is, they correspond to the tie bars 5 of the strip material 3 in a ratio of 1:1. In addition, as is clear from FIGS. 11 and 9, the presser blade 3
1 and the uneven stripes of the shear blades 34 alternately correspond to the tie bars 5 and the pin material 4a of the comb-like band material 3.

In FIGS. 5, 10, and 15, 40 is a receiving blade, and the number of square holes 4 is equal to the number of the cutting edges 39 in FIG. 8.
1... is installed through the square hole 41 of the receiving blade 40 with high precision.
. . . When cutting is performed, the cutting edge 39 . . . rushes inward. Therefore, this square hole 41... is connected to the tie bar 5 of the strip material 3.
It corresponds to...

The length dimension S shown in FIG. 12 is one stroke,
By reciprocating the feed claw 18 in the direction of arrows G and F shown in FIG.
Feed is given to the strip material 3 by this one stroke S,
With the positioning means 9, the tip of the band material 3 corresponds between the receiving blade 40, the shearing blade 34, and the presser blade 31, and when the mounting plate 33 moves forward by the operation of the fluid cylinder 32, the compression spring first The presser blade 31 is pressed through the blade 35 and moves forward, and the tip end surface 31a presses the band material 3 against the receiving blade 40 and holds it. If the mounting plate 33 continues to move forward continuously, it will be in the state shown in FIG. 5, and then only the shearing blade 34 will move forward relative to the presser blade 31 by the small dimension H, as shown in FIG. 12. Then, the cutting edge 39 of this shear blade 34 cuts the tie bar 5, and
All the pin materials 4a in the stroke S are connected to the pin 4 as shown in FIG. 13... and the cut piece of the tie bar that has been pierced toward the back surface 40a of the receiving blade 40 (although not shown in FIG. 5). It will be separated.

Thereafter, when the fluid cylinder 32 retreats, first the shear blade 34 and then the presser blade 31 retreat, so that the separated pins 4 fall under their own weight as indicated by arrows J.

Figure 14 shows the above operation explanation in a simplified perspective view. (As can be seen in conjunction with Figure 1) Band material 3,
3 are intermittently fed by one stroke S each, are cut and separated, and fall as independent pins 4... to be sent to the next process.

As shown in FIG. 4, when the numbers of long pins 4 and short pins 4 are different, the lower half of line D-D actually shown in FIG. One stroke S of the strip conveying means 1.1 in the lower half of the line.

This will cause S to be different. The total number of pins 4 in the upper and lower halves of the figure corresponds to the number required for one connector.

In addition, FIG. 15 shows the positional relationship of the above-mentioned presser blade 31, shear blade 34, and receiving blade 40 more specifically as a cross-sectional side view. Further, in FIG. 16, 42 is a tip droop prevention member that reciprocates in the direction of the arrow to temporarily support the tip of the strip material 3, and is used to prevent the strip material being fed by one stroke. 3 is supported for a short time until it is pressed down by the presser blade 31 shown in FIG.

Next, in FIGS. 17 and 18, the connector housing 12 is in the pin receiving position and is vibrating. This pin receiving position is determined by the cutting means 1 shown in FIGS. 5 and 15.
1 and separated by the cutting means 11 are guided to fall into this connector housing 12 by the guiding means 44.

As shown in FIGS. 15 and 16, this guiding means 44 includes an upper guiding board 46 having parallel grooves 45 in the vertical direction corresponding to the number of pins, and left and right and front and rear pins 4.・・・
A lower guide board 48 having three-dimensionally inclined guide passages 47 in order to match the spacing between the holes 13 of the connector housing 12 (see FIG. 4), and The nozzle section 49 is inserted into the nozzle section 49.

Immediately before the shear blade 34 cuts the tie bars 5..., the upper guide board 46 is pressed against the vertical plate 14 by the cylinder 50, and the groove 45 is closed, forming a vertical thank-you guide path. do. As shown in Figs. 17 and 18, the pins 4 falling parallel to each other gradually become spaced downward in the left-right direction, and the long pins and short pins approach each other in the front-rear direction. The guide paths 47 of the lower guide board 48 are formed so that the gap is reduced as shown in FIG. 46 etc., the lower guide plate 48 is reciprocatingly movable, and after the lower end nozzle part 49 is inserted into the housing 12, the pins 4... fall from above as shown by arrow P.

In FIGS. 17 to 21, 51 is a conveying means for transporting the housing 12 in the direction of arrow M, and the vibration mechanism 5
It has 2. That is, this conveying means 51 includes, for example, a parts feeder (not shown), a horizontal gutter-like member 53 connected to the parts feeder, and a horizontal gutter-like member 53 that is moved in the direction of the arrow M by applying vibration to the gutter-like member 53.
It is composed of a linear feeder 54 that generates a feeding force to the trough-like member 53, a stopper 56 that can be inserted into the upper opening-shaped guide groove 55 of the gutter-like member 53 from the lateral direction, and the like.

The guide groove 55 of the gutter-like member 53 has a stepped portion 57.
It consists of an upper wide part 58 and a lower narrow part 59. The thickness of the housing 12 is slightly smaller than the inner width of the upper wide portion 58, and the bottom corner portion of the housing 12 slides while engaging with the stepped portion 57. The lower narrow portion 59 is connected to the housing 1
This is to avoid the interference of the downward protrusion of the pin 4 after being inserted into the pin 2.

The vibration mechanism 52 corresponds to the linear feeder 54 described above, but other than this, various types of vibration equipment may be freely used.

The stopper 56 can be reciprocated by a fluid cylinder 60 or the like.
In FIG. 19, it is attached to a pressure receiving member 61.

In FIG. 19, reference numeral 62 denotes a connector housing positioning mechanism, which has two notched windows 63, 63 and 63 in each of the side walls 58a, 58a forming the upper wide part 58 of the gutter-like member 53.
. . and cutout windows 63, 63 in one side wall portion 58a.
In this case, the protruding portion 64.64 of the pressure receiving member 6J is inserted so as to be flush with the inner surface of the side wall portion 58a, and the cutout window 63.63 of the other side wall portion 58a is filled with fluid in the direction of the arrow. Projection 67 of locking member 66 that reciprocates in cylinder 65
, 67 rushes in. The protrusion 67 of this locking member 66,
67, press the corner of the housing 12,
Perform positioning.

With such a positioning mechanism 62, the nozzle portion 49 is easily and reliably inserted into the housing 12, which has been positioned in the feeding direction and in the left-right direction, as shown in FIG. Immediately after being inserted, the locking member 66 is retracted by the cylinder 65. By providing a small clearance between the nozzle portion 49 and the inner surface of the housing 12, the locking member 6
6 immediately causes the housing 12 to vibrate.

From above, via the above-mentioned guiding means 44, the pins 4...
If they fall almost simultaneously, pin 4 will fall as shown in Figure 22.
It is temporarily inserted under its own weight. Each pin 4 shows that the housing 12 is vibrating under the vibration of the vibration mechanism 52.
The temporary insertion into the housing hole 13 is facilitated.

By the way, since the pin 4 has a small protrusion 7 for locking, it cannot be inserted to the final press-fitting position (see Fig. 23) □This is called temporary insertion□, so after that, the stopper 56 (19th
21), the housing 12 and the temporarily inserted pins 4 are conveyed in the direction of the arrow M by the vibration of the gutter-like member 53. A pushing press (not shown) is provided on the downstream side, and when the upper end of the pin 4 is pressed with the pusher 68 of the press as shown in FIG. ... is press-fitted into the hole 13 and is firmly fixed. FIG. 24 shows such a completed state. Incidentally, as shown in FIG. 25, if desired, a step of bending the pins 4 may be added to make the bent pins 4 into a completed state.

It should be noted that the present invention is of course not limited to the illustrated embodiment, and for example, after cutting and separating the pins 4 from the strip material 3, the pins 4, which have been cut and separated in advance, are not dropped immediately.
..., stored for -10 days, and then sold one by one or -
It can be freely inserted into the housing 12 at the pin receiving position at any time. Furthermore, the locking small convex portions 7 of the pins 4 may be omitted, and it may be sufficient to set them to a size that allows them to be press-fitted into the holes 13. Also, long pin 4 and short pin 4
It is also possible to use one type of pin instead of the two types. Further, in the illustrated embodiment, a linear feeder 54 that performs both conveyance and vibration is shown, but the conveyance means 51 is a Conhair, Punch cylinder, etc., and the vibration mechanism 52 is provided only at the pin receiving position. It is also possible to adopt a structure in which the vibrations are transmitted to the housing 12 only for a short period of time during which the parts 4, . . . are temporarily inserted into the housing 12. Further, the actual insertion of press-fitting the pins 4 into the holes 13 of the housing 12 can be freely performed at the pin receiving position.

[Effects of the Invention] The housing conveying means 51 allows the housing 12 to be easily and quickly transported from another location to the pin receiving position.
Temporary insertion of the pins 4 is possible immediately, and at this time, the housing 12 and the pins 4 are both vibrated by the vibration mechanism 52, and the temporary insertion is quickly performed. Immediately after that, the housing can be quickly carried out and transferred by the housing transfer means 51. In this way, pin assembly can be performed automatically and with high efficiency.

[Brief explanation of drawings]

Fig. 1 is a simplified plan view showing one embodiment of the present invention, Figs. 2 and 3 are front views showing the band material, Fig. 4 is a perspective view for explaining the operation, and Fig. 5 is a sectional plan view of the main part. , Fig. 6 and Fig. 7 are front views for explaining the operation, Fig. 8 is a plan view of the shearing blade, Fig. 9 is a sectional view showing the meshing state of the shearing blade and the presser blade, and Fig. 10 is a front view of the receiving blade. 11 and 12 are explanatory views of the correspondence between the strip material and the main components of the cutting means, FIG. 13 is an explanatory view of the pin in a separated state, FIG. 14 is a simplified perspective view explaining the whole, and FIG. The figure is a cross-sectional side view of the main part, Fig. 16 is a front view of the main part, Fig. 17 is a front view of the main part, Fig. 18 is a side view of the main part, and Fig. 19 is a plan view of the main part.
FIG. 20 is a sectional side view of the main part, FIG. 21 is a front view of the main part, FIGS. 22 and 23 are sectional views of the main part for explaining the operation, and FIGS. 24 and 25 are explanatory views of the finished product. . ■...Strip material conveying means, 3...Comb tooth shaped band material, 4...
Pin, 4a...Pin material, 5...Tie bar, 11.
... Cutting means, 12 ... Connector housing, 13.
... hole, 44 ... guiding means, 51 ... housing conveyance means, 52 ... vibration mechanism. Patent applicant: Mitsubishi Cable Industries, Ltd. Same as above
Ryosei Techno Parts Co., Ltd.Figure 14Figure 16Figure 17Figure 18

Claims (1)

[Claims] 1. An automatic pin assembly machine that inserts a plurality of pins into the holes of a connector housing, which feeds the connector housing to a predetermined pin receiving position and applies vibration to the connector housing to insert the pins into the holes of the pins. 1. An automatic pin assembling machine characterized by comprising a connector housing conveying means having a vibration mechanism for assisting temporary insertion into a part by its own weight.