JPH0128988Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a positioning device used for positioning other parts such as pins to fit into holes of a perforated part.

Conventionally, the pin body 2 is inserted into the perforated part 1 and the first
The steps to be performed when assembling the connector 3 etc. as shown in the figure are as follows. That is, as shown in FIGS. 2 and 3, a perforated part 1 is placed on a guide rail 4, and a chain 5 running along the guide rail 4 is attached to the guide rail 4 below the guide rail 4.
Attachments 6 protruding from the upper surface are attached at required intervals.The attachments 6 sequentially feed the perforated part 1 to the front of the pin insertion device 7, and the positioning device 8 aligns the pin body 2 and the hole. The pin body 2 is inserted into the perforated part 1 by the pin insertion device 7. In general, the number of pins of the connector 3 ranges from 2 pins for a small number to about 20 pins for a large number, and the overall length varies, so if the positioning device 8 is of the tip stopper type, the position of the stopper 9 can be adjusted as shown in Figure 4. It is necessary to change the length of the perforated part 1 each time, which is undesirable because the work becomes complicated. Therefore, as shown in FIG. 5, a taper pin method is often used in which a taper pin 11 is inserted into the hole 10 of the component for positioning. This method has the advantage of increasing accuracy since there is no need to change the position of the taper pin depending on the part and the hole for inserting the pin is used as a reference. However, this method also has the following drawbacks. As mentioned above, the connector 3 has various numbers of pins, and the pin insertion device 7 is naturally adapted to the maximum number of pins. Therefore, for devices with a small number of pins, it is extremely efficient to line up several perforated parts and insert the pins at once. However, in order for this to be possible, when the perforated parts 1' for decimal pins are placed side by side, the dimensions of the abutting ends (the value of l ₁ + l ₂ in Fig. 6) must be the same as the perforated parts 1'' for the maximum number of pins. It must be equal to the dimension between the holes (for example, for 10 holes) (the value of L in Figure 6), but in reality it is difficult to match for design or processing reasons, and the As shown in the figure, the current situation is that only the parts at the proximal end can be positioned, and as you move toward the tip, the dimensional difference accumulates and positioning becomes almost impossible.Therefore, the present invention has been developed by arranging a large number of parts with holes for decimal pins side by side. An object of the present invention is to provide a positioning device that enables positioning even when dimensional differences accumulate.

Furthermore, as shown in Japanese Utility Model Application Publication No. 56-2673, there is a known device for sequentially positioning a required number of parts using pins of different lengths. Since they protrude to the opposite side of the part, as the number of pins increases, the difference in the tip positions of the pins at both ends becomes larger, and the longer pin protrudes more towards the opposite side of the part, which obstructs the processing equipment. Therefore, it was necessary to restrict the number of pins, and a stopper that restricted the number of parts was also an essential component, resulting in a disadvantage of high cost. Furthermore, since the pins are not equipped with escape mechanisms, there is also the inconvenience that they cannot be processed while the aligning device is moving forward.

Therefore, it is an object of the present invention to provide a simple and low-cost device that does not require the installation of a device such as a stopper, and also to enable processing or assembly even when the positioning device is moved forward.

In order to achieve the above object, the positioning device of the present invention has a table arranged so as to be movable back and forth toward a guide rail that transfers perforated parts in an aligned state, and has a tapered part at the tip. A required number of taper pins of different lengths, each of which has an outer diameter that can be fitted into the hole of a perforated component, are slidable in the front and rear directions relative to the table and biased forward by a spring body. The tips of the tapered pins are installed so that they protrude in parallel in a stepped manner, and the spacing between each taper pin is made equal to the spacing of other parts such as the pin body at the desired position to be inserted into the hole of the perforated part. It is characterized by having been set.

Embodiments of the present invention will be described below with reference to the drawings (Fig. 7 et seq.).

First, a table 13 is constructed which is movable at least in the front and back direction and has a required number of through holes 12 that are open on the front and rear sides thereof, and each through hole 12 of this table has a tapered portion 14 at its tip and has a length. A positioning device 16 in which a different required number of taper pins 15 are inserted so that their tips protrude in parallel in a stepped manner.
is configured. Incidentally, a window hole 17 is opened in the upper surface of the table 13 at the location where the through hole 12 is located, and a pin 18 fixed to each taper pin 15 is inserted through the pin 19 and a spring body 2 protruding from the front end of the table upper surface.
Connected by 0. Next, to explain the operating state (see Fig. 3 and Fig. 9), among the perforated parts in the aligned state, they are carried on the guide rail in front of the pin insertion device by the attachment 21 attached to the chain. Part 2 located at the proximal end
First, the table 13 moves forward and the tip tapered part 25 of the proximal taper pin 24 protruding to the maximum is inserted into the hole 23 of No. 2, and the tapered part 25 slightly pulls the component 22 away from the attachment 21. Move it and position it at the position of the pin body 26. At this time, parts 27 and below also move at the same time, but the amount of movement is such that the taper pin 28 can be inserted into the hole 29 of the second part 27 (i.e., within the radius from the center of the hole). (value that allows the center of the tapered part to be located). Next, the table 13 moves further forward, and the second taper pin 28 is inserted into the second component 27 and positioned while being similarly moved in the direction of separating it from the component 22. At this time, the third taper pin 3
The third and subsequent parts are also moved so that 0 can be inserted into the hole 32 of the third part 31. This operation is repeated thereafter, and when the positioning of the last component 33 is completed, the table 13 is moved back.

The present invention is constructed as described above, and since each taper pin positions the parts in sequence only by advancing the table, it is possible to align a large number of parts without accumulating dimensional errors of the parts and making it impossible to position them. Since positioning can be performed all at once even in a closed state, productivity can be greatly improved. Furthermore, it has become possible to provide a simple and inexpensive device without the need for a stopper as in the above-mentioned known example. Furthermore, since the taper pin has an escape mechanism, the assembly process for the part can be carried out even when the table is moved forward relative to the part, making it extremely convenient.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a connector, which is an example of an article formed by positioning, Fig. 2 is a plan view showing a general connector assembly process, Fig. 3 is a side view of Fig. 2, and Fig. 4 is a An explanatory diagram showing the positioning state using the conventional tip stopper method, Fig. 5 is an explanatory diagram showing the positioning state using the conventional taper pin method, and Fig. 6 shows the difference in dimensions when parts with holes for decimal pins are arranged side by side. FIG. 7 is a perspective view showing an embodiment of the positioning device of the present invention; FIGS. 8 and 9 are operating state diagrams of the embodiment of the present invention; FIG. 8 is a diagram showing the positioning of the first component. FIG. 9 shows a state in which the third component has been positioned. 1, 1', 1''...Perforated parts, 2...Pin body,
3... Connector, 4... Guide rail, 5...
Chain, 6... Attachment, 7... Pin insertion device, 8... Positioning device, 9... Stopper, 10... Hole, 11... Taper pin, 12...
...Through hole, 13...Tapered portion, 15...Taper pin, 16...Positioning device, 17...Window hole, 18
... Pin, 19 ... Pin, 20 ... Spring body, 21
...Attachment, 22...Parts, 23...
Hole portion, 24... Taper pin, 25... Taper portion, 26... Pin body, 27... Part, 28...
... Taper pin, 29 ... Hole, 30 ... Taper pin, 31 ... Part, 32 ... Hole, 33 ...
...The last part.

Claims (1)

[Scope of utility model registration request] A table is arranged so as to be movable back and forth toward a guide rail that transfers perforated parts in an aligned state, and has a tapered part at the tip, with an outer diameter that allows only the tapered part to fit into the hole of the perforated part. A required number of taper pins of different lengths are attached to the table so that they can slide freely in the front and back directions and are biased forward by a spring body so that their tips protrude in parallel in a step-like manner. The positioning device is further characterized in that the intervals between the tapered pins are set to be the same in accordance with the intervals of other parts such as pin bodies at desired positions to be inserted into the holes of the perforated parts.