JPS6238101B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an apparatus for supplying and assembling a shaft stopper.

Generally, in various types of industrial equipment, in order to prevent the shaft inserted into the bearing hole from slipping out, there is a type of equipment in which the outside of the shaft is covered with a shaft stopper. for example,
In the measuring device 1 shown in FIG. 1 used for a power meter, an hour meter, etc., two bearing plates 4 and 5 are held at a constant distance by a base plate 2 and a rod 3. Parallel shafts 6 and 7 are inserted through the shaft, and one shaft 6 is equipped with a plurality of display wheels 10, which are a combination of a scale wheel 8 and a gear 9, rotatably in parallel, and the other shaft 7 is equipped with a gear. It is formed by rotatably mounting a plurality of carry gears 11 that mesh with the gears 9. One end 6a, 7a of each shaft 6, 7 is flattened to prevent the shaft 6, 7 from slipping out in the direction of the arrow in Figure 1a, and the end A pair of shaft stopper support holes 12a, 12b are bored in the bearing plate 4 with 6a, 7a, and a substantially U-shape shown in FIGS. 1 and 2 is formed in the shaft stopper support holes 12a, 12b. The hook portions 13a and 13b at both ends of the shaft stopper 13 are inserted and engaged, and each shaft 6, 7 is held down by the flat plate portion 13c to prevent the shaft from coming off in the direction of arrow b in the figure.

In the present invention, the shaft stopper 13 is supplied to the shaft stopper support holes 12a, 12b, and is assembled by being attached thereto.

Conventionally, in order to carry out this supply and assembly, a large number of completed shaft stoppers 13 as shown in FIG. Ta. That is, as shown in FIGS. 3a and 3b, a large number of shaft stoppers 13 inserted into the vibrating ball feeder 14 are attached to the chute 1 that interlocks with the vibrating ball feeder 14.
The chute 1 is taken out one by one in a row on the top of the chute 1 through an inclined gap 16.
Non-vibrating chute 17 provided close to 5
It is transferred to the top and sent to the next assembly process from the outlet end (not shown) of this chute 17. Further, the sheet 17 has hook portions 13a and 13b as shown in FIG.
a mound part 17a on which the shaft stopper 13 is placed and guided with the shaft facing downward; and restraining members 17b, 17b that hold down the shaft stopper 13 from above with a certain clearance so that the shaft stopper 13 does not come off from the mound part 17a.
It is formed by.

However, in the apparatus for feeding the shaft stopper shown in FIGS. 3 and 4, the vibrating ball feeder 1
4, the shaft stoppers 13 may become entangled with each other and may not be fed onto the chute 15 in an orderly manner.
Since the chute 15 is vibrating when the shaft stopper 13 is transferred to the shaft stopper 13, the positional relationship between both chute 15 and 17 is relatively changed.
3 got caught on the mound 17a, the restraining member 17b, etc. at the entrance of the chute 17, and became clogged. For this reason, the shaft stoppers 13 could not be reliably aligned and smoothly supplied. Also,
When the shaft stopper 13 was inserted into the vibrating ball feeder 14, the shaft stopper 13 itself was sometimes deformed and did not match the shape of the chute 15, 17.

In order to eliminate these inconveniences, conventionally, as shown in FIG. 5, a vibrating linear feeder 18 and a horizontal chute 19 linked thereto are provided, and
A removable jig cassette 20 is provided on both sides, and a large number of shaft stoppers, which have been manually arranged in parallel on the mound (not shown) of the jig cassette 20, are transferred to the chute 19 and supplied to the assembly section. I was trying to do that.

In this conventional device, the shaft stoppers 13 do not become entangled with each other, and the jig cassette 2
0 and the chute 19 vibrate in synchronization, the transfer of the shaft stopper 13 is carried out smoothly without the shaft stopper 13 getting caught. However, since the shaft stopper 13 is manually aligned on the jig cassette 20, The disadvantage was that it was inefficient and unsuitable for mass production.

Also, conventionally the chute 1 shown in Figs. 3 and 5
7 and 19, take out the shaft stopper 13 one by one and insert it into the shaft stopper support hole 12a of the bearing plate 4.
12b, a device as shown in FIG. 6 was used.

That is, one shaft stopper 1 is mounted on the upper surface of the separation plate 21.
3 by vacuum suction from the small holes 22, 22, and then the separating plate 21 is raised in the direction of arrow a in FIG.
Insert into 3a. At this time, the shaft stopper 13 is inserted into the guide groove 23a while elastically compressing both side plate parts on which the hook parts 13a and 13b are formed. Next, the separating plate 21 is lowered to its original position, and then the sector gear 24 fixed to the retaining plate 23
is rotated 90 degrees in the direction of arrow b in the same figure by the rack 25, and the holding plate 23 is made to face the bearing plate 4 of the weighing device, which is conveyed and oriented by another device (not shown) (see the chain line in the figure). Next, the holding plate 23 is advanced in the direction of arrow c in the same figure, and at the same time, the extrusion body 26 in the holding plate 23 is advanced in the direction of arrow c in the same figure, and the shaft stopper 13 is moved along the guide grooves 23a, 23a to the bearing plate. 4, and with the hook portions 13a, 13b in the depressed state, insert the shaft stopper support holes 12a, 12b.
insert it inside. Then, the hook portions 13a, 13b elastically expand in the direction of arrow d in the figure and engage with the walls of the shaft stopper support holes 12a, 12b, completing the assembly. Thereafter, the holding plate 23 and the extrusion body 26 return to the solid line position in the figure, and the next assembly is restarted.

However, in the conventional device described above, the shaft stopper 13 is moved many times from the chute to the separation plate 21 and from the separation plate 21 to the retaining plate 23, so that the shaft stopper 13 may not be aligned at a predetermined position. There were cases where it became impossible to assemble the shaft stopper 13. Moreover, each time the holding plate 23 and the extrusion body 26 are assembled with one shaft stopper 13,
Since a 90 degree reversal operation was required, there were disadvantages such as high-speed assembly being impossible.

Also, conventionally, as shown in FIG. 7, the toggle mechanism 2
The shaft stopper 13 is attached to the hook portion 13 from above the separation plate 21 by the chucks 28a and 28b that are opened and closed by the chucks 28a and 28b.
a, 13b in the compressed state, and after rotating 90 degrees, move forward in the direction of the bearing plate 4 as shown by the chain line in the figure, open the chucks 28a, 28b, and insert the shaft stopper 13 into the shaft stopper support hole. A device to be attached to 12a and 12b has also been proposed.

However, this device also has the same disadvantages as the device shown in FIG. There was an inconvenience that 13 could not be attached.

The present invention has been made in view of these points, and allows the shaft stopper to be supplied in a continuous manner in the form of a band, and can be attached to the shaft stopper support hole by a simple operation without transferring the shaft stopper. To provide an apparatus for supplying and assembling a shaft stopper that can be assembled at high speed.

The present invention will be described below with reference to embodiments shown in FIGS. 8 to 20.

8 to 17 show an embodiment of the present invention.

The device of the present invention uses a band 29 formed by aligning shaft stoppers 13 in the unfolded state as shown in FIG. 9. This band material 29 is manufactured by stamping and forming a flat band material, and the shaft stopper metal fittings 1 which are in the unfolded state are attached to the upper and lower belt parts 29a and 29b.
It has a shape in which three hook portions 13a and 13b are connected.

As shown in FIGS. 8 and 10, the device of the present invention has the following features:
a reel 30 for winding the strip 29; a strip feeding device 31 for feeding the strip 29 wound around the reel 30;
The strip material 29 sent from this strip material feeding device 31
When the shaft stopper 13 is cut and removed, the shaft stopper 13 is positioned at a certain position on the bearing plate 4.
the shaft stopper support holes 12a, 12.
and a shaft stopper cutting and supplying device 32 that is assembled by engaging the hook portions 13a and 13b with the shaft stopper b.

To explain further, the strip material supply device 31 supplies the strip material 29
The reel 3
0 and the strip material insertion space 33 are guide plates 34 and 35 that guide the strip material 29, a number of vertical rollers 36 that press the strip material 29 against the guide plates 34 and 35, and upper and lower rollers of the strip material 29. A pair of horizontal rollers 37 are provided to regulate the position, and a drive roller 3 rotates at a fixed position to feed and drive the strip material 29.
8 and a pressure roller 40 that swings about a shaft 39 and comes into elastic contact with the drive roller 38. Further, on the exit side of the band material insertion space 33, tip guides 41 and 4 are provided for guiding the band material 29 in which the shaft stopper 13 is removed and only the belt portions 29a and 29b are left.
2 is provided.

The shaft stopper cutting supply device 32 is shown in FIGS. 8 and 10.
It is formed as shown in the figure and FIG.
That is, a narrow strip insertion space 33 into which the strip 29 is inserted is formed between the end surfaces of the guide walls 43 and 44 and the inner surface of the guide wall 45. Fixed blades 46 are fixed to the upper and lower portions of the guide wall 45, respectively, for cutting the shaft stopper 13 from the band material 29. On the other hand, inside the guide walls 43 and 44, a thin plate-like positioning member is inserted into the space 57 between each shaft stopper 13 of the strip material 29 next to the guide wall 43 to hold the strip material 29 in a fixed position. A plate 47 is provided so as to be able to reciprocate in a direction across the strip insertion space 33, that is, in the vertical direction in FIG. 8 (hereinafter referred to as the transverse direction). A stopper 48 that reciprocates in the transverse direction is provided adjacent to the positioning plate 47. This stopper 48 is reciprocated by engagement between a pin 58 protruding from the positioning plate 47 and an elongated hole 59 provided in the stopper 48 (FIG. 8), and is disposed between the inner end surface of the fixed blade 46 and the belt portion 29a. , 29b and fix the band material 29. A movable blade 49 is provided between the stoppers 48 and has a blade portion for cutting the shaft stopper 13 from the band material 29 between the movable blade 49 and the fixed blade 16 so as to be able to reciprocate in the transverse direction. This movable blade 49 is provided extending from the top and bottom of the base 50, and a die 5 is provided inside.
1, guide grooves 49a are formed for bending both ends of the shaft stopper 13 forward in the transverse direction. Further, between each of the movable blades 49, a pusher body 52 that similarly reciprocates in the transverse direction is provided. When cutting the shaft stopper 13, the extruded body 52 clamps and fixes the shaft stopper 13 between it and the die 51, and moves forward to move the shaft stopper 13 in the movable blade 49 toward the bearing plate 4. extrude Also, the die 51 is connected to the shaft 5
The roller 54 at the rear end moves into the groove 55 provided at the base of the movable blade 49.
Once inside, it rotates in the direction of the arrow a in FIG. 11, and is formed so as not to impede the forward movement of the movable blade 49 and the extrusion body 52. In addition, a positioning plate 47, a movable blade 4
9 and the extrusion body 52 are each reciprocated by a predetermined amount at a predetermined time by a drive mechanism (not shown) such as a cam or a lever.

Next, the operation of this embodiment will be explained.

First, the roll 56 with the strip material 29 wound thereon is attached to the chuck 30, and then the strip material 29 is placed on the guide plates 34, 3.
5. Pass the strip between the vertical roller 36, horizontal roller 37, drive roller 38 and pressure roller 40 and insert it into the strip insertion space 33.

Next, with the pressure roller 40 in elastic contact with the drive roller 38, the drive roller 38 is rotated in the direction of the arrow in FIG. I will send it to you.

When the strip material 29 is fed, the positioning plate 47 moves forward in the transverse direction and is inserted into the space 57 between each shaft stopper 13, and at the same time the pressure roller 40
The drive roller 38 and the strip material 2
9 to leave the strip 29 in a free state, and the strip 29
The positioning of the band material 29 is performed with the conveyance direction error zero (see FIG. 12).

In parallel with the advancement of this positioning plate 47, the extruded body 5
2 moves forward, and as soon as the positioning of the band material 29 is completed, the extruded body 52 is moved with the die 51 to the shaft stopper 13.
The band material 29 is fixed by clamping it. Also stoppa 4
8 is also pushed forward by a pin 58 protruding from the positioning plate 47, and as soon as the positioning of the band material 29 is completed, the belt portions 29a, 29b are moved between the fixed blade 46 and the belt portions 29a, 29b.
and fix the band material 29.

Next, the movable blade 49 moves forward and cuts the belt portions 29a, 29b and the shaft stopper 13 between it and the fixed blade 46 (see FIG. 13).

Then, the movable blade 49 moves further forward, and both ends of the shaft stopper 13 are gradually bent forward by the guide groove 49a and compressed elastically between the die 51 and formed into a substantially U-shape or U-shape. (14th
(see figure).

Next, the movable blade 49 and the extrusion body 52 move forward together, and the movable blade 49 is oriented at a certain position on the bearing plate 4.
Advancement is stopped just before . During the forward movement of the movable blade 49, the roller 54 of the die 51 enters the groove 55, and the die 51 rotates so as not to interfere with the forward movement of the extrusion body 52 and the shaft stopper (see solid line in Figure 15). ).

After that, only the extruded body 52 moves forward and the shaft stopper 1
3 toward the bearing plate 4 along the guide groove 49a. By this extrusion, the shaft stopper 13 has hooks 13a, 13b at both ends attached to the shaft stopper support holes 12a, 1.
2b (Fig. 16), and the moment the entire shaft stopper 13 comes out of the guide grooves 49a, 49a, the hook portions 13a, 13b open outward due to the restoring elasticity and engage the shaft stopper support holes 12a, 12b. (See the chain line in FIG. 15 and FIG. 17).

After that, the extrusion body 52, the movable blade 49, the stopper 4
8 and the positioning plate 47 are pulled back to their original positions behind the strip insertion space 33.

By repeating the above operations, the shaft stoppers are successively supplied and assembled.

Further, the belt portions 29a and 29b that come out from the strip material insertion space 33 in the conveyance direction of the strip material 29 are guided by pitch guides 41 and 42, respectively, and are fed.

18 to 20 show other embodiments of the apparatus of the present invention, in which a die 51 and an extrusion body 52 are shown in FIG.
By changing the shape of the mating surface with the 19th to
As shown in FIG. 0, it is provided with restoring elasticity in the direction of shrinking inward, and as shown in FIG. 20, it is configured to be attached to the bearing plate 4 by the restoring elasticity.

In this way, the shaft stopper supply and assembly device of the present invention continuously supplies the shaft stoppers with a strip material in which the shaft stoppers are arranged in parallel, and the movable blade moves back and forth once across the strip material. Since the shaft stopper is cut, formed, transported, and attached to the shaft stopper support hole using the extruded body, there is no possibility that the shaft stoppers may become entangled with each other or get caught during transportation. This eliminates the need for manual alignment of the shaft stopper, and since the band material is wound on a reel, it is easy to carry and handle, and there is no deformation of the shaft stopper. There is no need to change gears, so the shaping work of the shaft stopper can be done reliably, and since the shaft stopper can be attached by one reciprocation in the straight direction of the movable blade, assembly work is speeded up and mass production is possible. In addition, since the band material from which the shaft stopper has been removed is made up of an integrated belt, the remaining material of the band will not scatter into the moving parts of the device or toward the weighing device when the shaft stopper is cut, resulting in high safety and other effects. play.

Further, since the shaft stopper can be cut and molded by only the movable blade in which the blade portion and the guide groove are formed, the entire apparatus can be simplified.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the measuring device, Fig. 2 is a perspective view of the shaft stopper, Fig. 3a is a side view showing a conventional shaft stopper supply device, and Fig. 3b is the blade of Fig. 3a. A view in the direction of arrows, FIG. 4 is an enlarged sectional view taken along the - line in FIG. 3a,
FIG. 5 is a side view showing another example of a conventional supply device;
6 and 7 are plan views showing conventional assembly devices, FIG. 8 is a plan view showing an embodiment of the shaft stopper supply and assembly device of the present invention, and FIG. 9 is a partial perspective view of a band material. , FIG. 10 is a view in the direction of the arrow in FIG. 9, and FIG. 11 is a partially exploded perspective view of the shaft stopper cutting and supplying device.
Figure 2 is a sectional view taken along the line XII-XII of Figure 10, Figure 13 is a diagram similar to Figure 12 showing the shaft stopper in a cut state, and Figure 14 is the same as Figure 12 showing the shaft stopper in a bent state. , FIG. 15 is a view similar to FIG. 12 showing the shaft stopper in an extruded state, FIG. 16 is a perspective view showing the relationship between the shaft stopper and the bearing plate in the extruded state, and FIG.
Fig. 7 is a cross-sectional view showing the relationship between the shaft stopper and the bearing plate in the assembled state, Fig. 18 is a view similar to Fig. 14 showing another embodiment of the device of the present invention, and Fig. 19 is a view of another shaft stop. FIG. 20 is a perspective view similar to FIG. 16 showing the metal fitting and the bearing plate, and a side view showing the relationship between another shaft stopper and the bearing plate in an assembled state. 4... Bearing plate, 12a, 12b... Shaft stopper support hole, 13... Shaft stopper, 13a, 13b...
...Hook part, 29...Band material, 30...Reel, 31...
... Band material feeding device, 32... Shaft stopper metal cutting supply device, 33... Band material insertion space, 49... Moving blade, 5
2...Extruded body.

Claims (1)

[Scope of Claims] 1. Hooks formed at both ends are inserted into and engaged with a pair of shaft stopper support holes drilled in the bearing plate, so that the shaft stoppers to be attached to the bearing plate are aligned in an expanded state. a reel for winding a strip provided in the form of a belt, and a strip feeding device for feeding the strip wound around the reel through a strip insertion cavity of a shaft stopper cutting and feeding device; The shaft stopper cutting and supplying device is formed in a substantially U-shape and is configured to be movable in a direction that traverses the strip material located in the strip material insertion space, and is configured to move forward and backward in a direction across the strip material located in the strip material insertion cavity, and between it and a fixed blade, it cuts the strip material away from the strip material. A blade part for cutting the shaft stopper is provided on the outer surface of the U-shaped tip, and a guide groove is provided for bending the hooks at both ends of the shaft stopper forward between a die that is swingable in a direction perpendicular to the advance/retreat direction. a movable blade provided on the inner surface of the U-shaped tip; and a movable blade configured to be movable in the same direction as the movable blade within the movable blade. A shaft comprising: a push-out body that pushes out the shaft stopper held in the guide groove in the direction of the bearing plate fixed at a certain position and inserts a hook portion into the shaft stopper support hole. Fastener supply and assembly equipment.