JP3739290B2 - Cutting oil application device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cutting oil application device that conveys cutting oil and applies the cutting oil to an object. In particular, the present invention relates to a cutting oil application device for cutting that supplies cutting oil to a cutting tool of a machine tool such as a machining center, a lathe, or a polishing machine.
[0002]
[Prior art]
Conventionally, in machining, oil has been applied to an object such as a workpiece or a tool in order to improve machining accuracy or extend the life of a tool. In the method in which liquid oil is directly applied to the target, the amount of application is too large, and it takes time to remove excess oil, which reduces productivity. In addition, since excess oil soars around the device, it was necessary to take measures to prevent the working environment from deteriorating.
[0003]
For this reason, spray oil (liquid fine particles) that has been transported to the vicinity of the target object is applied to the target object by increasing the oil flow rate appropriately by increasing the flow velocity at the tip of the tapered outlet. Was done. With such oil application, machining can be performed with the minimum amount of oil required, so that not only machining accuracy and productivity can be improved, but also work environment can be improved and factory equipment can be simplified. become.
[0004]
[Problems to be solved by the invention]
However, in the oil supply device as described above, when oil is supplied to a plurality of workpieces or the like, an oil supply pump and a spray generation unit are separately required for each of the supply destinations. The cost was very high.
[0005]
In addition, in such an apparatus, the number of pipes for spray supply and the like increases, and the apparatus becomes complicated and large in size, so that there is a problem in terms of installation space for the apparatus and space for arranging pipes.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a cutting oil application apparatus according to the present invention is connected to a spray generating section that generates oil spray, an outflow section from which the oil spray flows out, a flow path formed inside, and the flow path. A manifold that has a plurality of openings and is supplied with oil spray from the outflow portion into the flow path.The internal flow path is formed using a tubular flow path formed separately from the main body of the manifold, and this tubular flow path is replaced with another tubular body by exchanging it with the manifold main body so as to change its coefficient of friction or inner diameter. The flow path in the manifold formed by using the tubular flow path is branched from the flow path.Connected to a plurality of branch channels, each branch channel is connected to the plurality of openings, the plurality of openings are connected to a discharge port having an inner diameter narrower than the channel, The supply of the oil spray into the flow path and the discharge from the discharge port are performed by the pressure of gas supplied from a gas supply source. According to the cutting oil application apparatus as described above, cutting oil can be supplied to a plurality of supply destinations with a simple structure.The Further, the pipe friction coefficient and the inner diameter of the flow path can be easily changed, and the flow velocity in the manifold can be adjusted without replacing the entire manifold.
[0007]
In the cutting oil application device, further comprising a reservoir of oil to be supplied to the spray generator, and an oil supply means for conveying the oil of the reservoir to the spray generator,
In the spray generation unit, it is preferable that the oil spray is generated by mixing the oil supplied from the oil supply means and the gas supplied from the gas supply source. According to the cutting oil application apparatus as described above, oil spray can be reliably generated with a simple structure.
[0008]
Moreover, it is preferable that a flow path for connecting the flow path in the manifold and the oil storage portion is formed. According to the cutting oil application apparatus as described above, the oil adhering to the inner wall of the flow path can be returned to the oil reservoir and reused.
[0009]
Moreover, it is preferable that the outflow part and the inlet part of the flow path of the manifold are close to each other so that the oil spray from the outflow part can be directly supplied to the flow path of the manifold. According to the cutting oil application apparatus as described above, it is possible to minimize the conveyance length of the oil spray that has flowed out of the spray generation unit, and the ratio of the oil droplets in the conveyance flow path is relatively small. Since the oil fluid can be supplied to the oil discharge port, it is possible to prevent the conveyance flow rate, the conveyance flow rate from being lowered, and the conveyance flow path from being clogged.
[0010]
Moreover, it is preferable that the spray generation part and the manifold are integrally formed. According to the cutting oil application apparatus as described above, the outflow part and the inlet part of the flow path of the manifold can be brought closer to each other, and the conveyance length of the oil spray flowing out from the spray generation part is minimized. be able to.
[0011]
Moreover, it is preferable that the flow path in the manifold has the oil spray inlets at substantially both ends, and the outlets are connected to the respective inlets. According to the cutting oil application apparatus as described above, since the oil spray can be supplied from both ends of the flow path, the variation in the discharge flow rate from each discharge port is smaller than when oil spray is supplied from only one side of the flow path. It can reduce more reliably.
[0012]
The length of the oil spray supply passage from the outflow portion to one end of the flow path is substantially the same as the length of the oil spray supply passage from the outflow portion to the other end of the flow path. Preferably there is. According to the cutting oil application apparatus as described above, the pressures at both ends of the manifold can be made substantially equal, so that the variation in the discharge flow rate from each discharge port can be further reduced.
[0013]
The flow path in the manifold and the opening are connected via a valve, and switching between a setting for discharging the oil spray from the discharge port and a setting for stopping the discharge of the oil spray is performed by opening and closing the valve. Preferably it is possible.
[0015]
Moreover, it is preferable that the setting of stopping the generation of the oil spray and allowing the gas to flow out from the oil spray generation unit is possible. According to the cutting oil application apparatus as described above, the oil adhering to the inner wall of the pipe can be blown out. Further, it can be used for removing chips by air blow after cutting.
[0016]
The plurality of openings of the manifold are preferably formed on at least two different surfaces of the manifold so that the oil spray can be discharged from a plurality of directions. According to the cutting oil application apparatus as described above, oil can be discharged from a plurality of directions with one manifold, so that the production space can be effectively utilized and the length of the flow path in the manifold can be shortened. Therefore, it is possible to more reliably prevent the conveyance flow rate, the conveyance flow rate from being lowered, and the conveyance flow path from being clogged.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0018]
(Embodiment 1)
FIG. 1: has shown the block diagram of the cutting oil coating device which concerns on Embodiment 1 of this invention. The spray generators 37 a and 37 b are disposed adjacent to the manifold 12 at both ends of the manifold 12. Air is supplied to the spray generators 37a and 37b by an air source 30 which is a gas supply source. The air from the air source 30 is supplied to the spray generator 37a via the air transfer tube 31a. It is supplied to the spray generator 37b via 31b. The amount of air supplied to the spray generators 37a and 37b can be controlled by the air flow rate adjusting valves 32a and 32b, respectively.
[0019]
Oil supply to the spray generators 37a and 37b is performed by an oil pump 33 which is an oil supply means, and the oil from the oil pump 33 is conveyed to the spray generator 37a via the oil transfer tube 35a. It is supplied to the spray generator 37b via the tube 35b. Oil is supplied to the oil pump 33 from an oil tank 34 which is an oil reservoir.
[0020]
The amount of oil supplied to the spray generators 37a and 37b can be controlled by the oil flow rate adjusting valves 36a and 36b, respectively. The air and oil conveyed through each tube are mixed in the spray generators 37a and 37b, respectively, and oil spray is generated. The oil spray in the spray generators 37a and 37b flows into the flow path 14 in the manifold 12 through the outflow part (not shown). That is, the oil spray is conveyed and discharged by the air pressure of the air source 30.
[0021]
Here, as the particle size of the oil particles of the oil spray becomes larger and the concentration of the oil particles becomes higher, the oil particles are combined with each other and become supersaturated, and the tendency of the oil particles to become droplet-like during transportation becomes stronger. . This tendency becomes more prominent when the transport distance becomes longer. When the ratio of the oil fluid droplets during conveyance increases, there is a problem that the conveyance flow velocity and the conveyance flow rate decrease, and the conveyance flow path may be clogged. That is, if the oil particles change into droplets, it becomes difficult to stably supply the oil to the workpiece. This is the same not only when the oil particles change into droplets during conveyance, but also when oil with a large particle size is mixed at the time of flowing out from the spray generating section.
[0022]
On the other hand, when oil and air are transported alone, compared to transporting in a mixed state of oil and air, there is almost no problem that the transport flow velocity and transport flow rate decrease even when the transport distance is increased. .
[0023]
In the present embodiment, the spray generators 37 a and 37 b are disposed adjacent to the manifold 12. For this reason, the outflow part of the oil spray and the inlet part of the flow path 14 are also adjacent to each other. That is, since the oil spray outflow part and the inlet part of the flow path 14 are close to each other, the oil spray generated in the spray generating parts 37a and 37b can be directly flowed into the spray conveying flow path 14 in the manifold 12. it can. As a result, the transport length of the oil spray that has flowed out of the spray generating portions 37a and 37b can be minimized, that is, the length of the flow path formed in the manifold 12 can be suppressed. Since the oil fluid can be supplied to the discharge pipe 18 of the manifold 12 which is the final outlet in a state where the ratio of the oil in the form of droplets is relatively small, the conveyance flow velocity, the conveyance flow rate is lowered, and the conveyance flow path is clogged. Can be prevented.
[0024]
Moreover, even if the position of the cutting process and the positions of the oil pump 33 and the air source 30 become longer, the length of each tube for conveying oil and air alone may be increased, and the conveying length of the oil spray. Does not affect.
[0025]
Next, the operation after the oil spray is conveyed into the manifold 12 will be described. As shown in FIG. 1, a flow path 14 is formed in the manifold 12, and a plurality (six in FIG. 1) of flow paths 14 a are branched from the flow path 14. An electromagnetic valve 15 is connected to each flow path 14a.
[0026]
The oil spray in the manifold 12 is discharged to the outside through each solenoid valve 15, the discharge pipes 16 and 18, and the discharge port at the tip of the discharge pipe 18. The discharge pipe 16 is connected to the opening of the manifold 12 that communicates with the flow path 14 a through the electromagnetic valve 15. Each solenoid valve 15 can be controlled separately. In the state shown in FIG. 1, each electromagnetic valve 15 is in a closed state, and oil discharge from the discharge pipe 18 is stopped by a check valve 17. If the solenoid valve 15 is moved in the direction of arrow a, oil is discharged from the discharge pipe 18.
[0027]
In the present embodiment, since the spray generators 37 a and 37 b are connected to the flow paths 14 at both ends of the manifold 12, it is possible to reduce variation in the discharge flow rate from the discharge port at the tip of each discharge pipe 18. .
[0028]
In addition, the oil spray in the manifold 12 has a reduced discharge port diameter and passes through a unified discharge pipe 18 so that the pressure, flow rate, and flow velocity during discharge are constant, and the workpiece is stably supplied. Can be made. The discharge pipe 18 may be an orifice, or may serve as a tool such as a drill having a discharge port at the tip.
[0029]
As described above, in this embodiment, the oil spray conveyance length is minimized to prevent a decrease in the conveyance flow rate and the conveyance flow rate due to the droplet shape of the oil particles. In order to achieve this, it is effective to reduce the inner diameter of the flow path in the manifold 12. As a result, the oil spray conveyance speed can be increased, and a sufficient conveyance speed is ensured over the entire flow path in the manifold 12. This is also effective in reducing variations in the discharge flow rate from the discharge pipe 18 at both ends and the center of the manifold 12.
[0030]
Further, since there is an effect of pumping oil adhering to the inner wall surface of the flow path, clogging of the flow path can be prevented. Further, such an increase in the oil spray conveying speed can be achieved by increasing the air supply amount by adjusting the air flow rate adjusting valves 32a and 32b. For reducing the inner diameter, if it is too small, the pressure loss increases, so it is necessary to balance the flow velocity and the pressure loss.
[0031]
Further, the flow path 14 in the manifold 12 can be a tubular flow path formed separately from the main body of the manifold 12. The tube friction coefficient and the inner diameter of the flow path 14 can be easily changed by replacing the tubular flow path with another tubular flow path by inserting / removing the tubular flow path into / from the main body of the manifold 12. This makes it possible to adjust the flow rate in the manifold 12 without replacing the entire manifold 12.
[0032]
Further, the oil supply from the oil transfer tubes 35a and 35b may be stopped and used. Thereby, the oil adhering to the pipe inner wall can be blown out. This is effective, for example, when the cutting operation is stopped without requiring oil discharge. Further, it can be used for removing chips by air blow after cutting.
[0033]
Further, a bypass channel that connects the channel 14 in the manifold 12 and the oil tank 34 may be formed. By having such a bypass flow path, the oil adhering to the pipe inner wall as described above can be returned to the oil tank 34 again. This may be performed when each solenoid valve 15 is closed and oil discharge from the discharge pipe 18 is stopped.
[0034]
In the embodiment shown in FIG. 1, the spray generators 37 a and 37 b are described as being disposed adjacent to the manifold 12. However, the spray generators 37 a and 37 b are integrated with the manifold 12. The spray generators 37a and 37b may be incorporated in the manifold 12 respectively.
[0035]
(Embodiment 2)
The second embodiment is an embodiment specifically showing the spray generating unit. FIG. 2A is a diagram showing a main part of the present embodiment. FIG. 2B is an enlarged cross-sectional view in the vicinity of the flow path 42 of the spray generator 40 shown in FIG. A flow path 42 is formed in the main body 41 of the spray generating unit 40. The spray generating air pipe 43, the air from the air pipe 44, and the oil from the oil pipe 45 flow into the flow path 42.
[0036]
As shown in FIG. 2B, the spray generator 46 has a smaller inner diameter than the flow path 42a, and the flow rates of oil and air increase. In the spray generator 46, the air from the air pipe 43 and the oil from the oil pipe 45 are mixed to generate oil spray.
[0037]
The air in the spray generating air pipe 43 and the air pipe 44 is supplied from an air source 47, and the conveying flow rate in each pipe can be adjusted by adjusting valves 48c and 48d which are air flow rate adjusting means, respectively. The oil in the oil pipe 45 is supplied by an oil pump 48 that is an oil supply means, and oil from an oil tank 49 that is an oil reservoir flows into the oil pump 48. The oil flow rate in the oil pipe 45 can be adjusted by an adjustment valve 50a which is an oil flow rate adjusting means.
[0038]
By adjusting the flow rate in the air pipe 43 and adjusting the oil flow rate in the oil pipe 44, the oil spray amount and the oil spray particle size can be adjusted. Further, the pressure at the final outlet of the oil spray can be adjusted by adjusting the flow rate in the air pipe 44. A pressure gauge 48 detects the pressure of the oil spray.
[0039]
In this figure, only one end portion of the both ends of the manifold 12 is shown, but the spray generating portion having the same configuration as the spray generating portion 40 is connected to the flow of the manifold 12 through the connecting portion on the other end side. It is connected to the path 14.
[0040]
The adjusting valves 48a and 48b are for adjusting the air flow rates of the air pipes of the spray generating section on the other end side. Moreover, the adjustment valve 50b is for adjusting the oil flow rate of the spray generation part in the other end side. The oil spray outflow part of the spray generating part 40 and the inlet part of the flow path 14 of the manifold 12 are connected by a connecting part 50.
[0041]
The spray supply unit 40 shown in this figure does not have the oil spray particle size selection function as in Embodiment 3 shown later. For this reason, the oil spray flowing out from the spray generating unit 40 has a large variation in particle size, and droplet-shaped oil may be mixed. However, in the present embodiment, since the spray generating unit 40 is disposed adjacent to the manifold 12, the oil spray generated in the spray generating unit 40 is sprayed through the connecting unit 50 in the spray conveying channel in the manifold 12. 14 can flow directly. For this reason, the conveyance length of the oil spray can be minimized, and the oil fluid is supplied to the discharge pipe 18 of the manifold 12 as the final outlet in a state where the ratio of the oil droplets in the conveyance flow path is relatively small. Since it can supply, the fall of a conveyance flow velocity, a conveyance flow rate, and the clogging of a conveyance flow path can be prevented. Furthermore, since no container or oil recirculation passage is required, there is an advantage of small size and low cost.
[0042]
(Embodiment 3)
FIG. 3 shows a configuration diagram of a cutting oil coating apparatus according to Embodiment 3 of the present invention. In the present embodiment, the spray generator 1 is not adjacent to the manifold 12 as in the first and second embodiments, but the spray generator 1 is connected to the manifold 12 via the transport tubes 11a and 11b. This embodiment is useful when it is necessary to separate the manifold and the spray generation unit for convenience of work layout. However, in this case, as described in the first embodiment, simply separating the manifold and the spray generating portion increases the oil spray conveyance length by the length of the conveyance tubes 11a and 11b. The problem is that the oil particles increase and change into droplets, the transport flow velocity and the transport flow rate decrease, and the transport channel is clogged. In the present embodiment, in order to compensate for this point, the spray generator 1 has a particle size selection function. Hereinafter, it demonstrates concretely, referring drawings.
[0043]
The spray generation unit 1 is a container 2 that forms a main body and also serves as an oil storage unit, to which a spray discharge tube 3, an air discharge port 4, spray transfer pipes 5 a and 5 b, and an oil supply port 6 are attached. The air discharge port 4 is for supplying air into the container 2, and is connected to an air source 7, and the discharge flow rate can be adjusted by an adjustment valve 9 b that is an air flow rate adjusting means. The pipes 5 a and 5 b are for conveying the oil spray in the container 2 to the outside of the container 2. The pipes 5a and 5b are connected to transfer tubes 11a and 11b, which are oil spray transfer passages, respectively. The transfer tubes 11a and 11b are connected to connection pipes 13a and 13b at both ends of the manifold 12, respectively. With such connection, the oil spray in the container 2 is supplied into the manifold 12.
[0044]
First, the operation in the container 2 and the conveyance of the oil spray into the manifold 12 will be described. FIG. 4 is an example of a cross-sectional view of the spray generator shown in FIG. Oil spray is discharged into the container 2 from a spray discharge port 3 c of the spray discharge tube 3. The spray discharge tube 3 is formed in duplicate with an air tube 3a and an oil tube 3b inserted therethrough.
[0045]
The air tube 3a is connected to the air source 7, and the discharge flow rate can be adjusted by the adjusting valve 9a. The oil tube 3 b is connected to an oil pump 8 that is an oil supply means, and the oil flow rate from the oil pump 8 can be adjusted by an oil flow rate adjustment valve 10.
[0046]
Further, the tip of the oil tube 3b enters the air tube 3a. In the spray discharge port 3c, the oil supplied from the oil pump 8 and the air supplied from the air source 7 are mixed and discharged into the container 2 as oil spray.
[0047]
The particle size of the oil spray discharged from the spray discharge port 3c varies from a fine one to a large one. Also, oil droplets instead of sprays are discharged. Oil sprays and oil droplets with large particle diameters are easy to drop by gravity, whereas the speed of fine oil sprays to drop by gravity is slow and the residence time in the container 2 is long. Hereinafter, the fine oil spray means a smoke-like one that can float in the air.
[0048]
Since the inside of the container 2 is pressurized by the air pressure from the spray discharge port 3c, the fine oil spray staying in the container 2 moves in the direction of arrow b under the influence of this pressurization, and the pipe 5a, It is carried into 5b. In this figure, the two spray transfer pipes 5a and 5b are separately arranged, but one pipe may be branched into two.
[0049]
Since oil sprays and oil droplets with large particle diameters tend to drop in the direction of the liquid surface of the oil 21, they are not easily affected by air pressure, and these oil sprays and oil droplets with large particle diameters are placed in the pipes 5a and 5b. Is difficult to flow in.
[0050]
Although details of the role of the air discharge port 4 will be described later, the internal pressure of the container 2 can be increased by the discharge air from the air discharge port 4, and the flow rate of the oil spray can be accelerated.
[0051]
Further, the oil 21 in the container 2 can be replenished from the oil filler opening 20 by removing the oil filler cap 19. The oil 21 flows into the pump 8 through the supply port 6. An oil supply tank may be connected to the oil supply port 20 to detect that the oil 21 in the container 2 is less than a certain amount, and the oil is automatically supplied from the oil tank.
[0052]
Oil sprays flow into the pipes 5a and 5b, and these oil sprays are conveyed by air pressure from the air source 7. In the present embodiment, most of the oil sprays transported are fine oil sprays with a selected particle size, so there is almost no decrease in the transport flow rate or transport flow rate, and even if the tube length of the transport tubes 11a and 11b is increased. The oil spray can be transported stably.
[0053]
Since the operation after the oil spray is conveyed to the manifold 12 is the same as that in the first embodiment, the description thereof is omitted. In FIG. 3, when the transfer tubes 11a and 11b having substantially the same inner diameter are used, the lengths of the tubes 11a and 11b are made substantially equal to each other, so that the connection pipes 13a immediately before flowing into the manifold 12 13b, the pressure, flow rate, and flow rate can be substantially equal.
[0054]
Furthermore, in this embodiment, since the connection pipes 13a and 13b are connected to both ends of the flow path 14, the variation in the discharge flow rate from the discharge port at the tip of each discharge pipe 18 can be reduced.
[0055]
Here, the role of the air discharge port 4 will be described. As described above, the flow rate of the oil spray increases by passing through the discharge pipe 18 having a reduced diameter. This flow rate increases as the internal pressure of the container 2 increases. The internal pressure of the container 2 depends not only on the discharge air pressure from the spray discharge port 3 but also on the diameter of the discharge pipe 18. The smaller the diameter of the discharge pipe 18, the higher the internal pressure of the container 2.
[0056]
Since the internal pressure of the container 2 can be increased by discharging air from the air discharge port 4, the discharge air pressure discharged from the discharge pipe 18 can be increased without changing the diameter of the discharge pipe 18. Since the air discharge port 4 is intended only for air supply, the effective sectional area can be increased as compared with the air tube 3a of the spray discharge port 3. That is, by having the air discharge port 4, the variable range of the discharge air pressure can be sufficiently widened. Further, from this, when the discharge pipe 18 is replaced with a larger diameter and the internal pressure in the container 2 decreases, the supply of air from the air discharge port 4 can compensate for the decrease in the internal pressure in the container 2. it can.
[0057]
As described above, in the present embodiment, most of the oil spray flowing through the transfer tubes 11a and 11b and the flow path 14 in the manifold 12 is a fine oil spray, so the pressure of the discharge air from the air discharge port 3 Thus, the oil spray can be conveyed at high speed.
[0058]
In this way, by increasing the oil spray conveying speed, a sufficient conveying speed is ensured over the entire flow path 14 of the manifold 12, so that the discharge pipes 18 at both ends and the center of the manifold 12 can be used. The variation in the discharge flow rate can be further reduced. Such an increase in the conveying speed can also be achieved by reducing the inner diameters of the conveying tubes 11a and 11b.
[0059]
Further, a bypass flow path that connects the flow path 14 in the manifold 12 and the spray generating unit 1 may be formed. By having such a bypass flow path, the oil adhering to the pipe inner wall as described above can be returned to the container 2 again. In addition, when each solenoid valve 15 is closed and oil discharge from the discharge pipe 18 is stopped, the oil spray can be returned to the container 2 again, and the oil spray can be returned between the spray generator 1 and the manifold 12. It can be circulated.
[0060]
(Embodiment 4)
FIG. 5 shows a block diagram according to another embodiment of the manifold. In the manifold 51 shown in FIG. 5A, transfer tubes 53a and 53b for transferring oil spray are respectively connected to the flow path 54 by connection pipes 52a and 52b formed at both ends.
[0061]
In addition, three discharge pipes 55 are attached to the both side surfaces of the manifold 51 in openings formed on both side surfaces of the manifold 51, and each of the discharge pipes 55 has a diameter relative to the discharge pipe 55. A throttled discharge pipe 56 is connected. Further, an electromagnetic valve 57 is disposed between the flow path 54 and each discharge pipe 55, and switching between oil spray discharge from each discharge pipe 56 and discharge stop can be controlled.
[0062]
FIG.5 (b) has shown the top view of the manifold which concerns on another embodiment, FIG.5 (c) has shown the side view of FIG.5 (b). In the manifold 58 shown in the figure, transfer tubes 61a and 61b for transferring oil spray and a flow path 60 are connected by connection pipes 59a and 59b formed on the upper and lower surfaces, respectively.
[0063]
Further, the side surface of the manifold 58 is formed in a hexagonal shape, and a discharge pipe 61 is attached to each side surface. A discharge pipe 62 whose diameter is narrowed with respect to the discharge pipe 61 is connected to each discharge pipe 61. Has been. Further, an electromagnetic valve 63 is disposed between the flow path 60 and each discharge pipe 61, and switching between oil spray discharge from each discharge pipe 62 and stopping can be controlled.
[0064]
According to the fourth embodiment, oil can be discharged from a plurality of directions with a single manifold, so that the production space can be effectively utilized. In particular, in the embodiment shown in FIG. 5A, the installation space in the longitudinal direction can be shortened. As described above, by effectively using the side surface of the manifold, the length of the flow path in the manifold can be shortened as compared to the embodiment shown in FIGS. Can be more reliably prevented.
[0065]
In the present embodiment, it is sufficient that the discharge unit is oriented in at least two directions, and the setting of the arrangement of the discharge unit may be determined according to the arrangement of the workpieces, the production space, and the like. For example, in the embodiment shown in FIG. 5A, discharge pipes may be provided on the left and right side surfaces and the upper and lower surfaces of the manifold 51. In the embodiment shown in FIG. It may be increased or decreased.
[0066]
In addition, it is good also as a structure which used the manifold which concerns on this embodiment, and made the spray generation part adjoined like Embodiment 1, 2, or the structure which incorporated the spray generation part in the manifold.
[0067]
Moreover, in each said embodiment, although the example which used air for generation | occurrence | production of oil spray and conveyance was demonstrated, other gas may be sufficient.
[0068]
Moreover, in each said embodiment, an oil spray generation | occurrence | production part is not restricted to embodiment as shown in FIGS. 1-4, What is necessary is just to be able to generate oil spray from liquid oil. For example, an air spray may be generated in the oil to generate an oil spray, or an oil spray may be generated by mixing air and oil by a siphon method or a gravity method.
[0069]
【The invention's effect】
As described above, according to the present invention, the spray generator and a manifold having a plurality of openings are connected, and the plurality of openings are provided with discharge ports whose inner diameter is narrower than the flow path in the manifold. The liquid for cutting can be stably supplied to a plurality of supply destinations with a simple structure.
[0070]
In addition, the oil spray flowed out from the spray generating section can be increased by bringing the outflow section close to the inlet of the manifold flow path so that the oil spray from the outflow section can be directly supplied to the flow path of the manifold. Since the oil fluid can be supplied to the discharge pipe 18 of the manifold 12 which is the final outlet in a state where the ratio of the droplet-like oil is relatively small in the conveyance flow path, Decrease in the conveyance flow rate and clogging of the conveyance channel can be prevented.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a cutting oil application apparatus according to Embodiment 1 of the present invention.
FIG. 2A is a configuration diagram of a spray generator according to an embodiment of the present invention.
(B) Main part sectional drawing of the spray generation part shown to Fig.2 (a).
FIG. 3 is a configuration diagram of a cutting oil coating apparatus according to Embodiment 2 of the present invention.
FIG. 4 is a cross-sectional view of a spray generator according to an embodiment of the present invention.
FIG. 5 is a configuration diagram of a manifold according to an embodiment of the present invention.
[Explanation of symbols]
1, 37a, 37b, 40 Spray generator
2 containers
3 Spray discharge pipe
3a, 31a, 31b, 43, 44 Air tube
3b, 35a, 35b, 45 Oil tube
3c Tube tip
4 Air outlet
5a, 5b Spray transport pipe
6 Oil supply port
7, 30, 47 Air source
8, 33, 48 pump
9a, 9b, 32a, 32b, 48a, 48b, 48c, 48d Air flow rate adjusting valve
10, 36a, 36b, 50a, 50b Oil flow adjustment valve
11a, 11b, 53a, 53b, 61a, 61b Conveying tube
12, 51, 58 Manifold
13a, 13b, 52a, 52b, 59a, 59b Connection pipe
14, 14a channel
15, 57, 63 Solenoid valve
16, 18, 55, 56, 61, 62 Discharge pipe
17 Check valve
34, 49 Oil tank
50 connecting part

Claims (10)

An oil spray from the outflow part has a spray generation part for generating oil spray, an outflow part from which the oil spray flows out, a flow path formed inside, and a plurality of openings connected to the flow path. A manifold supplied into the flow path,
Passage in said manifold, said the body of the manifold are formed with tubular flow path formed separately, the tubular flow channel by interchanging connecting or disconnecting the manifold body to alter its pipe friction coefficient or inner Can be exchanged to another tubular channel,
The flow path of the tubular flow channel within the manifold formed by using a is connected to the branch flow path of the multiple branching from the flow path, wherein each branch channel is connected to said plurality of openings The plurality of openings are connected to a discharge port having an inner diameter narrower than the flow path, and supply of the oil spray into the flow path and discharge from the discharge port are supplied from a gas supply source. The cutting oil application device is performed by the pressure of the gas to be applied. Furthermore, an oil reservoir for supplying the spray generator, and an oil supply means for conveying the oil in the reservoir to the spray generator,
2. The cutting oil application device according to claim 1, wherein in the spray generation unit, the oil spray is generated by mixing the oil supplied from the oil supply unit and the gas supplied from the gas supply source.  The cutting oil coating apparatus according to claim 2, wherein a flow path connecting the flow path in the manifold and the oil storage portion is formed.  The cutting oil coating apparatus according to claim 1, wherein the outflow part and an inlet part of the flow path of the manifold are close to each other so that oil spray from the outflow part can be directly supplied to the flow path of the manifold.  The cutting oil coating apparatus according to claim 1, wherein the spray generation unit and the manifold are integrally formed.  6. The cutting oil according to claim 1, wherein the flow path in the manifold has an inlet for the oil spray at substantially both ends, and the outlet is connected to each inlet. Coating device.  The length of the oil spray supply passage from the outflow portion to one end of the flow path is substantially the same as the length of the oil spray supply passage from the outflow portion to the other end of the flow path. Item 7. A cutting oil coating apparatus according to Item 6.  The flow path in the manifold and the opening are connected via a valve, and can be switched between a setting for discharging the oil spray from the discharge port and a setting for stopping the discharge of the oil spray by opening and closing the valve. The cutting oil coating apparatus according to any one of claims 1 to 7. The cutting oil application device according to any one of claims 1 to 8 , wherein generation of the oil spray is stopped and a gas is allowed to flow out from the oil spray generation unit. The cutting oil application device according to any one of claims 1 to 9 , wherein the plurality of openings of the manifold are formed on at least two different surfaces of the manifold so that the oil spray can be discharged from a plurality of directions.

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