JP3291801B2 - Machined cleaning equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machined product cleaning apparatus, and more particularly to a machined product cleaning apparatus for automatically removing chips generated during thread cutting of bolts and nuts from these bolts and nuts. About.

[0002]

2. Description of the Related Art Due to the thread cutting of bolts and nuts, the chips are attached to the bolts and nuts after these processes. To make these finished products,
The chips must be cleaned and removed. For this reason, conventionally, these bolts and nuts after processing are immersed in machine oil, and an operator manually cleans and removes them. However, such manual operations not only result in incomplete removal of chips, but also increase human costs,
There has been a demand for a reduction in production costs.

In view of the above-mentioned problems, the present applicant provides a machined product cleaning apparatus capable of automatically cleaning chips, such as bolts and nuts, which have been machined first, and supplying the chips to the next step. For the purpose, a spiral track is formed on the inner peripheral wall portion of the bowl-shaped container, a cleaning liquid is stored in the bowl-shaped container, a torsional vibration force is applied, and a machined product immersed in the cleaning liquid is used as the track. A cleaning device for machined products, characterized in that chips and extraneous matter are removed by the cleaning liquid while being transferred by vibrations, and are discharged to the outside from the discharge end of the truck. Hei 3-81
No. 764).

[0004] Machined products, for example, chips and the like adhering to nuts by the above proposed cleaning device are almost certainly cleaned by the cleaning liquid and discharged to the outside from the discharge end of the truck. There is also a mixture of fine chips that stick to the threaded holes of the nut. This has been the effect or action of removing the nuts in the cleaning liquid while applying an impact force to the nuts due to vibration, but this cleaning liquid separates, for example, chips attached to the nuts, and this density increases. When it comes, especially fine chips may be attached again.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and once a cleaning liquid is stored in a bowl-shaped container to a predetermined level, the cleaning liquid is discharged from the discharge end of the truck to the outside for a long time. It is an object of the present invention to provide a machined product cleaning apparatus capable of reliably removing chips and attached matter from a machined product without exception.

[0006]

The object of the present invention is to form a spiral track on the inner peripheral wall of a bowl-shaped container, store a cleaning liquid in the bowl-shaped container, and apply a torsional vibration force,
A machine for cleaning a machined product in which chips and deposits are removed by the cleaning solution while the machined product immersed in the cleaning solution is transferred on the truck by vibration and discharged from the discharge end of the truck. At the end of the track
The upper portion is formed by a plurality of parallel belt-like members,
A second track is formed directly below the shaped member.
Truck has a discharge end that extends outwardly from the bowl.
Attached to the idling track and formed at the bottom of the bowl.
A conduit is connected to the formed opening, a filter and a pump are connected to the conduit, and the other end is a nozzle, and the ejection port of the nozzle is a discharge end of the uppermost portion above the level of the cleaning liquid.
Parts brought close to the vicinity of, the by ejecting a cleaning liquid to the machining products being transported on said track, so as to circulate back the washing liquid in the bowl-shaped container was removed chips
And deposits are dropped onto the second track and
This is achieved by a machined cleaning device characterized in that it is discharged through a truck to the outside .

[0007]

[Function] A nozzle is provided near the discharge end of the uppermost portion of the truck of the bowl-shaped container, and the washing liquid ejected from the nozzle is sprayed on the nut passing therethrough, so that chips and deposits are temporarily removed by the machine. Even if they are still attached to the workpiece, they can be reliably removed here and supplied to the outside. In addition, it is formed by a plurality of parallel strips.
The second truck just below the uppermost part
Deposits and chips removed from the workpiece fall and
Discharged through the rack. In addition, by the suction circulation action of the pump, it is supplied to the nozzle through the filter,
And since this is returned to the bowl-shaped container, the bowl-shaped container can always contain a clean cleaning liquid, thereby maintaining the cleaning action and improving the cleaning effect when receiving the impact force due to vibration. It can be assured.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An apparatus for cleaning a nut according to an embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1 to 10 show an apparatus for cleaning a nut according to an embodiment. In the figures, the whole apparatus is indicated by 1, and the inner peripheral wall of a substantially cylindrical bowl-shaped container 2 has a spiral shape. A track 3 is formed, and a movable core 4 is fixed to the bottom wall of the bowl 2. The movable core 4 is fixed to the lower base block 5 by a leaf spring 6 which is inclined at an equal angular interval. Are combined. An electromagnet 8 around which a coil 7 is wound is fixed on the base block 5, and the above-described movable core 4 is disposed with a gap g therebetween. The torsional vibration drive unit is configured as described above, and the whole is covered with a cylindrical cover 10. Further, the entire torsional vibrator described above is supported on the floor by vibration-proof rubber 9. A machine oil L is stored in the bowl 2, and the bowl 2 is fixed to the movable core 4 by, for example, welding.

In the bowl 2, a cylindrical body 60 is further fixed concentrically to the bottom wall of the bowl 2, and a spiral track 61 is also provided on the inner wall.
Are formed. Furthermore, on the bottom wall of the bowl-shaped container 2,
As shown in FIG. 3, a drain is provided, which is normally closed. However, when it is desired to discharge the cleaning liquid in the bowl-shaped container 2, the drain is opened to discharge the cleaning liquid to the outside. .

Further, a discharge pipe 63 provided at the upper limit level of the cleaning liquid is fixed to the peripheral wall of the bowl-shaped container 2.
When the cleaning liquid is injected into the bowl 2 at a higher level than this, the cleaning liquid is discharged to the outside from here.

As shown in FIG. 2, the uppermost portion of the spiral track 3 has a plurality of parallel belt-like members 3a.
And a plurality of gaps h, and a linear external lead-out without any holes formed at the discharge end 3b of the spiral track 3 for supplying the nuts m one by one to the next step. The track 12 is connected.

The track portion 3A composed of the band-like member 3a is shown in FIG.
Extends over about 180 degrees of the uppermost track portion of the track, and is joined to the wider transport track portion 3B at its start end 3c. Are flush, and the nut m can be smoothly transferred from the track portion 3B to the track portion 3A.

A second track 16 is formed immediately below the uppermost portion of the track 3 formed on the inner peripheral wall of the bowl-shaped container 2 in parallel therewith. Is connected to a guide track 17 extending outward from the bowl 3 as shown in FIG. A discharge tube 18 made of a flexible synthetic resin is connected to the discharge end of the guide track 17, and is fixed to the bowl 2 by a stopper 19.

The belt-like member 3 forming the uppermost track
A plurality of mounting members 20a or 20b are fixed to the side wall portion (a) of FIG. 1A (FIG. 1) or the upper end edge portion of the bowl 2 (FIG. 3), for example, by welding, and a screw hole is formed therein. On the other hand, the outer peripheral edge of the annular lid 22 made of synthetic resin is applied to the screw holes of the mounting members 20a and 20b by aligning the screw insertion holes formed in the lid 22 with the screws 21.
1 and 2, it is fixed to the bowl 2 as shown in FIGS. As shown in FIG. 1, between the peripheral edge of the lid 22 and the upper edge of the bowl 2,
A gap S extending vertically and radially is formed in the left end region, and a gap S ′ extending only in the radial direction is formed in the right end region. The lid 22 has a central opening 22a, and a reinforcing ring 30 made of metal is fixed to the peripheral edge portion with a screw 31.

A cylindrical body 6 arranged concentrically in the bowl 2
0 at the outer peripheral portion of the upper wall portion and as shown in FIG.
Level H of machine oil L as a washing liquid stored in the tank
The impact plate 43 is attached at substantially the same level as that of the impact plate 43 so as to be inclined downward in the direction of transfer by vibration, and the thickness thereof is thin enough to cause secondary vibration when subjected to vibration.

A notch 44 as shown in FIGS. 4 and 7 is formed in a part of the upper edge of the cylindrical body 60.
The intermediate portion 44a forms a side wall portion which becomes gradually lower in the discharge end portion of the truck 61 along the vibration transfer direction.

As shown in FIG. 3, a through hole 60a is formed in the bottom wall portion of the cylindrical body 60, through which the cleaning liquid injected into the bowl 2 or the cylindrical body 60 is supplied. As shown in FIG. 3, the communication is made as close as possible to the same level.

According to the present invention, the cleaning liquid L contained in the bowl 2 is always sucked by the hydraulic pump P,
Since the water is circulated through the pipe Q connected to the opening 2a formed at the bottom of the bowl 2, chips and deposits that have been washed and removed in the bowl 2 when passing through the filter F are filtered here, and this is filtered by the nozzle N. By spraying a clean cleaning liquid, the persistently adherent, for example, fine chips can be effectively removed reliably, and the cleaning liquid L present in the container of the bowl 2 is always in a clean state. Therefore, it is possible to efficiently receive the vibration action and to remove the chips and the deposits attached to the nut m .

The first embodiment of the present invention is configured as described above. Next, this operation will be described.

In FIG. 1, when an alternating current is applied to the coil 7, an alternating magnetic attraction force is generated between the electromagnet 8 and the movable core 4 as is known, and the bowl 2 causes torsional vibration. The machine oil L is stored in the bowl 2, and a machined nut m is put into the machine oil L. It is to be noted that, although it is shown only sporadically for the sake of simplicity, it is assumed that the nut m is actually inserted at a higher density.

A number of nuts m are put into the cylinder 60. As the cylindrical body 60 receives the torsional vibration force of the bowl-shaped container 2, the spiral track 61 rises, and in this process, the chips P attached to the screw holes ma of the nut m are cleaned by the cleaning liquid L. It is dropped. Cleaning liquid L
Inside, the cutting oil adhering to the nut m is washed away.
When reaching the upper end of the spiral track 61, it falls from the bowl-shaped container 2 to the bottom wall portion between the cylindrical body 60, but is guided on the impact plate 43 before this, as follows. Be affected.

The nut m discharged from the cylinder 60 is shown in FIG.
8 and 9, the bowl 2 and the cylinder 6
Drops in the cleaning solution to the bottom between zero. As shown in FIG. 7, the nut m transferred in the standing position at the discharge end of the truck 61 in the cylindrical body 60 is moved by the centrifugal force due to the torsional vibration to cross the tapered side wall portion 44a and hit the impact plate 43.
Fall on. At this time, since it falls with a relatively large head, a large impact force is obtained and the nut m "shown in FIG.
It is transferred downward on the impact plate 43 by the movement force and the gravitational action due to the vibration in the posture as described above.
The developing, in a nut m ₂ to rush from the air in the washing solution L as shown in FIG. 8, the cleaning liquid L to the chips P adhering to the screw hole, and washed off at work large separation force The nut m ₂ is separated and falls on the impact plate 43. As shown in FIG. 9, even if the drop does not fall on the impact plate 43 with a drop in the cleaning liquid L as shown in FIG.
₁ and m ₂ , the bottom wall surface of the nut m ₁ receives a partial impact force against the impact plate 43 and the accompanying impact plate 4.
The chips P attached to the screw holes are efficiently separated into the cleaning liquid L by partial detachment from the nozzle 3 and repeated landing. At this time, of course, the cutting oil adhering to the nuts m ₁ and m ₂ is also washed away. Nut m in cleaning liquid L
_3, it undergoes the same operation also in the transport stroke of m ₄ but,
Cleaning liquid L while nut m ₁ is in the position of nut m ₂
At the time of entry, the cleaning liquid L receives a particularly large detergency. Furthermore 8, since 9 opposition drama plate 43 is relatively thick is small, and subjected to vibration forces subjected to secondary vibration, while subjected to vibration during the vibration, the nut m ₁ collisions as described above As a result, the chips P and the cutting oil adhering to the nuts m are separated from the nuts m very efficiently.

On the bottom of the bowl 2, the nut m receives the torsional vibration force and receives the centrifugal force outward to reach the entrance of the truck 3, 61. By this time, the chips or chips P that have already adhered to the screw holes ma of the nut m after machining
Is removed by the vibration and separated into the machine oil L, but when it is further transported by the vibration of the spiral tracks 3, 61, it is transported while repeating a small jumping motion. When colliding with the spiral tracks 3, 61, the chips P attached to the screw holes ma are efficiently sieved off by the impact force, and the spiral tracks 3, 61 have a considerably long process. In the meantime, the chips P are sufficiently removed, and the removed chips P are transferred from the plurality of gaps h of the track portion composed of the band-shaped member 3a to the lower second track 16 as shown in FIG. Fall.

[0025] Note to the end of the track portion 3B, the chips are separated from the nut m been transported together with the nut m, it reaches the track portion 3A, the gap h between the belt-shaped member 3 a
From the second track 16 below the opening f.
It falls down, but directly from the gap h between the strip-shaped members 3a.
After passing directly through the floor d, it falls onto the second truck 16
I do. It is transported here by vibration and is discharged from the discharge end through a guide track 17 to the outside through a discharge tube 18.

Although the cleaning liquid L does not splash outside due to the lid 22, the cleaning liquid L attached to the inner surface of the lid 22 due to the gaps S and S 'does not flow out of the bowl 2. . Also, since the lid 22 is inclined leftward as shown in FIG. 1, it flows down the inner surface to the left and falls downward from its end.

According to the present invention, an opening 2a is formed in the bottom wall of the bowl 2, and a pipe connecting member T is fixed to the opening 2a, and the pipe Q is connected to the filter F and the hydraulic pump P. Is connected to the nozzle N. This nozzle N is provided with a nozzle opening near the discharge end of the truck 3 of the bowl 2, and the cleaning liquid L 'circulating through a nut m passing below the nozzle N is clearly shown in FIG.
So that it can be sprayed. By this squirt
And reliably removes fine chips that are still persistently attached
be able to. The cleaning liquid that has been sprayed is returned into the bowl 2, passes through the opening 2a, is again purified by the filter F, and is returned into the bowl 2.

The embodiment of the present invention performs the above-described operations and exerts effects. However, the embodiment can be performed automatically, and the chips and cutting oil of the machined nut m can be reliably removed without any manual operation. Can be removed.

[0029] Having described embodiments of the present invention, of course, the present invention is not limited thereto, and various modifications are possible based on the technical idea of the present invention.

In the above-described embodiment, the nozzle N is provided only near the discharge end of the truck 3 of the bowl 2, but the present invention is not limited to this, and a similar nozzle N may be provided on the upstream side. In this case, hydraulic pump, filter, pipe, bowl 2
The openings 2a may be provided independently of each other, but the piping Q may be further provided as one system, the nozzles may be configured as manifolds, and these nozzles may be provided near the tracks.

[0031]

According to the machined product cleaning apparatus of the present invention, chips and cutting oil adhering to machined products, for example, bolts and nuts, can be automatically and reliably removed.

[Brief description of the drawings]

FIG. 1 is a partial cutaway side view of a nut cleaning device according to a first embodiment of the present invention.

FIG. 2 is a partially broken plan view of the same.

FIG. 3 is an enlarged sectional view taken along the line [3]-[3] in FIG.

FIG. 4 is an enlarged perspective view of the main part.

FIG. 5 is an enlarged perspective view of another important part.

FIG. 6 is an exploded side view of still another essential part.

FIG. 7 is a side view showing the operation of the other essential parts.

FIG. 8 is an enlarged side sectional view similar to FIG. 7;

FIG. 9 is an enlarged side sectional view similar to FIG. 7;

FIG. 10 is an enlarged sectional view of a main part in FIG. 1;

[Explanation of symbols]

 2 bowl-shaped container (bowl) 3 truck F filter L cleaning liquid (machine oil) N nozzle P pump Q piping

Claims (1)

(57) [Claims] 1. A spiral track is formed on an inner peripheral wall portion of a bowl-shaped container, a cleaning liquid is stored in the bowl-shaped container, and a machined product immersed in the cleaning liquid by applying a torsional vibration force is applied to the track. In a machined product cleaning apparatus in which chips and deposits are removed with the cleaning liquid while being transferred by vibration, and discharged from the discharge end of the truck to the outside, the uppermost portion of the truck is provided with a plurality of parallel parts. Belt-like member
And a second track immediately below the band-shaped member.
And the discharge end of the second truck has a bowl-shaped volume.
A conduit is connected to an opening formed in the bottom of the bowl and connected to a guide track extending outward from the container, a filter and a pump are connected to the conduit, and the other end is a nozzle. Outlet above cleaning liquid level
Close to the vicinity of the discharge end of the uppermost part , after ejecting the cleaning liquid to the machined product being transferred on the truck, so that the cleaning liquid is returned and circulated in the bowl-shaped container , The removed chips and deposits are transferred to the second track.
And eject it outward through the guide track
An apparatus for cleaning machined products, wherein