JPH0424632Y2 - - Google Patents

Description

[Detailed description of the invention] [Summary] Regarding the mechanism for pitch-feeding conveyed items along guide rails, the aim is to improve the performance by making it possible to shift the pitch-feed in the feeding direction. A guide rail with a through hole for guiding the conveyed goods; a pin that is fixed to a vertically movable drive shaft and penetrates the guide rail and is inserted into and removed from the recess or through hole by the vertical movement of the drive shaft; a first slider that is movable; a second slider that is supported by the first slider and that is supported by the first slider and that is provided with a bearing fitted into the drive shaft so as to be movable up and down; A cam mechanism that moves the second slider left and right, thereby moving the tip of the pin in a substantially square shape, and a moving means that moves the first slider in the left and right direction by an appropriate amount. and configure it.

[Industrial application field]

The present invention relates to a mechanism for pitch-feeding conveyed items along a guide rail, and more particularly to a mechanism capable of shifting a predetermined pitch in the feed direction.

Connectors that connect circuits and devices are made by implanting multiple contacts into an insulator. Generally, a contact whose middle part is press-fitted into an insulator has a pair of contacts that protrude from the middle part to one side and the other. The connecting portion is integrally formed.

Therefore, for example, in a connector that connects a flat cable with a conductor pitch of 2.54 mm and a printed wiring board with connecting terminals formed with a pitch of 2.76 mm, the contact has a pitch of 2.54 mm at one connection part.
, and the other connection part needs to be aligned with a pitch of 2.76 mm.

In such a connector that connects a flat cable and a wiring board, for example, a connector with 37 contacts planted in two rows has six types of contacts in which the protruding position of one connection part differs from that of the other connection part. It is configured using

FIG. 2 is a front view schematically showing an example of the configuration of the connector for connecting the flat cable and the wiring board.

In FIG. 2, a connector (plug) 1 has a plurality of contacts embedded in an insulator 2. The contact 3 is press-fitted into the through hole of the insulator 2 at the intermediate part 3.
a and the pressed part 3b connected to the flat cable.
and a connecting part 3c that connects to a socket (not shown) attached to the wiring board, the pressure contact part 3b protrudes upward from the intermediate part 3a, and the connecting part 3c
Projects downward from a. In the connector 1, in which the wiring pitch of the insulation displacement part 3b is the normal size of 2.54 mm, and the arrangement pitch of the connection part 3c is, for example, 2.76 mm according to the DIN standard, the connection part 3c is generally arranged in the contact alignment direction with respect to the insulation displacement part 3b. A plurality of contacts 3 of a plurality of types, for example four types, shifted by an appropriate amount are implanted.

Therefore, the pitch of the connection part 3c is all accurate.
2.76mm and some variation will occur, but the connection part 3 should be adjusted so that the variation is within an allowable range.
Set the shift amount of c.

[Conventional technology]

In conventional connectors in which a pair of connecting portions formed on the contacts have the same pitch, the work of implanting the contacts into the insulator is automated.

FIG. 3 is a schematic front view showing a main part of a contact planting device in which a pair of contact portions have the same pitch.

In FIG. 3, the insulator 4, in which a plurality of contact press-fitting through holes 4a are provided at a predetermined pitch, moves rightward along the guide rail 5, and contacts (not shown) are press-fitted therebetween.

A pitch feed mechanism 6 disposed below the guide rail 5 for pitch feeding (intermittent feeding) the insulator 4 is provided with a base body 7 and a plate cam 9 mounted on a rotating shaft 8 protruding from an upright surface of the base body 7. A drive shaft 11 that moves up and down via a roller 10 that rotates in contact with a plate cam 9; a slider 12 that is equipped with a bearing into which the drive shaft 11 is fitted so as to be able to move up and down and is slidable in the left-right direction; and an intermediate section on the shaft 13. a swing shaft 14 that is supported and can swing freely, and a swing shaft 1
A roller 15 is provided at the lower end of the slider 12 and is rotatable in contact with the plate cam 9; a roller 16 is provided at the upper end of the swing shaft 14 and is rotatable; It is equipped with a coil spring 17.

A pin 18 that fits into the through hole 4a of the insulator 4 is provided at the upper end of the drive shaft 11, and the plate cam 9, which rotates in the direction of the arrow in the figure (rotates counterclockwise), has a protrusion that spans approximately 1/2 of its entire circumference. A portion 9a is formed.

Then, when the plate cam 9 is rotated to the left, the lower part of the swing shaft 14 is pushed to the right with the protrusion 9a in contact with the roller 15, and the slider 12 is pushed by the roller 16 and moved to the left. Next, when the protrusion 9a begins to push up the roller 10, the drive shaft 11 rises, and with the protrusion 9a removed from the roller 15, the slider 12 returns to the right, and the protrusion 9a is removed from the roller 10. The drive shaft 11 returns downward.

As a result, the tip of the pin 18 moves in a rectangle-shaped trajectory that crosses the guide rail 5 in the vertical direction, and when the slider 12 returns to the right, the insulator 4 is sent rightward by the return amount. become.

Thereafter, by repeatedly rotating the plate cam 9 and synchronizing the press-fitting operation of the contacts,
A connector with a plurality of contacts embedded in the insulator 4 is completed.

[Problem that the invention attempts to solve]

As explained above, conventional contact automatic implantation devices are intended for connectors in which a pair of contacts have the same pitch, and the contacts to be press-fitted into the insulator protrude above the insulator. The portion (connection portion 3b in FIG. 2) will be clamped and supplied.

Therefore, in the connector 1 that connects the flat cable and the printed wiring board described above, the amount of conveyance movement of the insulator 2 or the supply press-fitting position of the contact 3 is adjusted in accordance with the pitch difference between the connecting portions 3b and 3c. However, as shown in Figure 3, the conventional device
Since the connector is not equipped with the adjustment means, there is a problem in that a connector that has a pair of connecting parts to be connected to different mating parts and in which one of the connecting parts and the other has a different alignment pitch cannot be automatically assembled by conventional equipment. Ta.

[Means for solving problems]

The present invention, which aims to eliminate the above problems, is the first
According to the embodiment shown in the figure, a guide rail 5 guides an insulator (transferred product) 2 provided with through holes (or recesses) 2a at a predetermined pitch.
It is fixed to a vertically movable drive shaft 11 and penetrates through the guide rail 5 by the vertical movement of the drive shaft 11 to form the through hole 2.
a, a first slider 22 that can be inserted into and removed from the pin 18, a first slider 22 that can be moved left and right, and a bearing that the drive shaft 11 fits in so that it can move up and down;
a slider 12, and a cam 9 that moves the drive shaft 11 up and down and moves the second slider 12 left and right, thereby moving the tip of the pin 18 in a substantially square shape.
This is a pitch feed mechanism for conveyed goods characterized by comprising a mechanism and a moving means for moving the first slider 22 in the left and right direction by an appropriate amount.

[Effect]

According to the above means quoting FIG. 1, a second slider is combined with a plate cam, a drive shaft driven by the plate cam, and a swing shaft, the feed pin moves drawing a rectangular locus, and The movement of the feed pin is shifted by the first slider that supports the second slider and moves laterally, the pair of stoppers, and the air cylinder. Therefore, by combining the shift with the movement of the feed pin, an automatic device for press-fitting contacts manufactured with different alignment pitches at one end and the other end into an insulator has been made possible.

〔Example〕

Hereinafter, an apparatus according to an embodiment of the present invention will be explained using the drawings.

FIG. 1 is a schematic front view (a) and a plan view (b) as viewed from arrow A--A, schematically showing the main components of a conveyed goods pitch feeding mechanism according to an embodiment of the present invention.

In FIG. 1, in which the same reference numerals are used for parts common to FIGS. The contact 3 is press-fitted during the movement to the right along the same line.

However, the through hole 2a is located at the middle part 3 of the contact 3.
The connecting portion 3c of the contact 3 has a stepped shape that is narrower than the fitting portion a, and the pitch of the intermediate fitting portion is 2.54 mm, while the pitch of the connecting portion fitting portion is approximately 2.76 mm. mm.

A pitch feeding mechanism 21 is disposed below the guide rail 5 and feeds the insulator 2 in pitches (intermittent feeding).
A slider (first slider) 22 that can slide in the left-right direction along the upright surface of the base body 7, a pair of stoppers 23 and 24 that restrict the sliding movement, and the slider 22.
an air cylinder 27 that brings it into contact with the stopper 23
and an air cylinder 25 for bringing the slider 22 into contact with a stopper 24, and the slider (second slider) 12 is slidable in the left-right direction along a guide groove 29 of the slider 22.

Stopper 2 is operated by air cylinders 25 and 27.
The amount of sliding of the slider 22 that comes into contact with 3 or 24 is determined by implanting the first contact 3 in which the connecting part 3c is not shifted in the contact alignment direction with respect to the pressed part 3b and the second contact 3 in which it is shifted in the insulator 2. When the connecting portion 3 formed on the second contact
This corresponds to the shift amount of c, thereby adjusting the amount of movement of the insulator 2 using the portion of the through hole 2a through which the contact connection portion passes.

In such a device, when the plate cam 9 is rotated to the left, the lower part of the swing shaft 14 is pushed to the right with the protrusion 9a in contact with the roller 15, and the coil spring 17
The slider 12, which is always urged to the right by the roller 16, is pushed by the roller 16 and moves to the left. Next, when the protrusion 9a begins to push up the roller 10, the drive shaft 11 rises, and with the protrusion 9a removed from the roller 15, the slider 12 returns to the right, and the protrusion 9a is removed from the roller 10. Then, the drive shaft 11 returns downward.

In addition, the pitch feed mechanism 21 is arranged so that the connecting part 3c is shifted in the contact alignment direction with respect to the pressure contact part 3b.
In order to implant six types of contacts in the same insulator 4 in which the connecting portions 3c are shifted, three sets of pitch feeding mechanisms 21 are required.

As a result, the tip of the pin 18 moves in a square-shaped trajectory that crosses the guide rail 5 in the vertical direction. The pin 18 fitted into the through hole 2a as the drive shaft 11 rises will send the insulator 2 to the right when the slider 12 returns to the right. can be shifted left and right.

That is, as shown in the figure, the air cylinder 27 is driven, and the drive shaft 28 contacts the stopper 23 with the slider 22, and the drive of the air cylinder 27 is released and the air cylinder 25 is driven, and the drive shaft 28 is brought into contact with the slider 22.
6 is in contact with the stopper 24 and the slider 22 is in contact with the slider 22.
This results in a shift in the left-right direction by a gap δ between the stopper 24 and the stopper 24. This air cylinder 2
5, or the air cylinder 27 is driven when the type of contacts 3 to be supplied changes.

In the case of this embodiment, the pitch feed mechanism 21 is capable of automatically supplying (press-fitting) two types of contacts 3 with different relative relationships between the connecting portions 3b and 3c into the insulator 2, and furthermore, the stoppers 23 and 24 are capable of supplying (press-fitting) two types of contacts 3 having different relative relationships with the connecting portions 3b and 3c. By making it movable in the left-right direction, etc., a multi-stage configuration of the shift amount can be realized.

[Effect of idea]

As explained above, according to the present invention, the performance of the pitch feed mechanism is improved by combining the operation of the feed pin that draws a rectangle-shaped trajectory and the operation of shifting the operation of the feed pin. This has the effect of making possible an automatic device for press-fitting a contact manufactured to have a different alignment pitch at the other end into an insulator.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram showing the main configuration of a pitch feed mechanism according to an embodiment of the present invention, Fig. 2 is a front view schematically showing a connector with a different pitch arrangement of a pair of connecting parts, and Fig. 3 is a conventional diagram. A schematic front view showing the main parts of a contact implantation device equipped with a pitch feeding mechanism,
It is. In the figure, 1 is a connector, 2 is an insulator, and 2a
3 is a through hole, 3 is a contact, 3a is an intermediate part, 3
b, 3c are connection parts, 5 is a guide rail, 9 is a cam, 10, 15, 16 are rollers, 11 is a drive shaft,
12 and 22 are sliders, 14 is a swing shaft, 18 is a pin, 21 is a pitch feed mechanism, 23 and 24 are stoppers, and 25 and 27 are air cylinders.

Claims (1)

[Scope of Claim for Utility Model Registration] A guide rail 5 that guides the conveyed product 2, which has recesses or through holes 2a at a predetermined pitch, and a drive shaft 11 that is fixed to a vertically movable drive shaft 11.
A pin 18 that penetrates the guide rail 5 and is inserted into and removed from the recess or through hole 2a by vertical movement of the pin 18, a first slider 22 that can move horizontally, and the drive shaft 11 are fitted to be able to move vertically. A second slider 12 that is provided with a bearing and is supported by the first slider 22 and is movable left and right; the drive shaft 11 is moved up and down, and the second slider 12 is also moved left and right; thereby, the pin A pitch feed mechanism for conveyed goods, characterized by comprising a cam 9 mechanism that moves the tip of the slider 18 in a substantially square shape, and a moving means that moves the first slider 22 in the left and right direction by an appropriate amount.