JPH1057916A - Device for cleaning mechanically worked matter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely remove a chip washed out from a recessed part without being left on the surface of a matter to be cleaned in a cleaning device for a mechanically worked matter which is constituted so that cleaning liquids are injected from specified injection nozzles in turn. SOLUTION: The cleaning device is provided with a cleaning liquid supplying means which supplys the cleaning liquid from a pump to the specified injection nozzles 14, 15 among many injection nozzles 14, 15 and supplys no cleaning liquid to other injection nozzles 14, 15 and a compressed air supplying means which supplys compressed air to the specified injection nozzles 14, 15 supplied with the cleaning liquid from the pump by the cleaning liquid supplying means. A state that the cleaning liquid supplying means is operated for a first set period and then the compressed air supplying means is operated for a second set period is repeated and, further, the specified injection nozzles 14, 15 are changed to other specified injection nozzles 14, 15 every time operations of the cleaning liquid supplying means is started.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machined washing apparatus for washing chips from a machined machined machine.

[0002]

2. Description of the Related Art Some machines for cleaning machined workpieces are configured so that high-pressure cleaning liquid is sprayed from a spray nozzle to a workpiece to be cleaned from a short distance to wash away chips. Chips easily accumulate in recesses on machined products,
In particular, it is important to sufficiently wash off chips from screw holes and oil passage holes.

In this case, for example, Japanese Patent Laid-Open No. 5-123656
As disclosed in Japanese Unexamined Patent Application Publication No. H11-163, an injection nozzle (corresponding to each desired position) such as a screw hole in an object to be cleaned (W in FIG. 5 of the above official gazette) is used. 7)
Instead of supplying the cleaning liquid from the pump to all the injection nozzles simultaneously, supply the cleaning liquid only to a specific injection nozzle for a set time, and then supply the cleaning liquid to another specific injection nozzle. There is a configuration in which the cleaning liquid is sequentially supplied to each specific injection nozzle so that the cleaning liquid is supplied only during a set time.

[0004] This makes it possible to inject a sufficiently high-pressure cleaning liquid from a specific injection nozzle without using a particularly large-capacity pump for the cleaning liquid, which is advantageous in terms of simplification of the structure. Since the total amount of the cleaning liquid may be small, the processing of collecting chips from the used cleaning liquid can be easily performed.

[0005]

As described above, if the cleaning liquid is sequentially jetted for each specific jet nozzle, the order of a specific jet nozzle comes,
When the cleaning liquid is jetted from the specific jet nozzle, a state occurs in which the cleaning liquid is not jetted from this specific jet nozzle, or even if jetted, the cleaning liquid is jetted much later. .

[0006] Thus, when chips are washed out of the concave portion by spraying the cleaning liquid from a specific spray nozzle,
In some cases, only the washing out from the concave portion is ended, and the washed out chips adhere to and remain near the outside of the concave portion. The present invention provides a cleaning device for a machined work in which a cleaning liquid is sequentially sprayed for each specific spray nozzle, in addition to washing out the chips from the concave portions, the chips are washed from the object to be cleaned itself. The purpose is to construct so that it can be reliably removed.

[0007]

[Means for Solving the Problems]

[I] According to the feature of claim 1, first, a cleaning liquid is jetted from a specific jet nozzle among a large number of jet nozzles for a first set time, and a second jet is performed from the same specific jet nozzle.
Compressed air is injected for a set time, and then a cleaning liquid is injected from another specific injection nozzle for a first set time, and compressed air is injected from the same specific injection nozzle for a second set time. Is injected. In such a large number of injection nozzles, the cleaning liquid and the compressed air are injected from the specific injection nozzle, the cleaning liquid and the compressed air are injected from the next another specific injection nozzle, and the cleaning liquid and the cleaning liquid from the other specific injection nozzle and the like. An operation called injection of compressed air is performed.

As described above, according to the first aspect of the present invention, the compressed air is injected from the same injection nozzle from which the cleaning liquid has been injected, while the cleaning liquid is being injected sequentially for each specific injection nozzle. Thereby, when chips are washed out from the concave portion by spraying the cleaning liquid from a specific spray nozzle,
Thereafter, even if the washed chips are attached to the vicinity of the outside of the concave portion by the injection of the compressed air from the same specific injection nozzle, the chips are blown off from the object to be cleaned by the above-described injection of the compressed air. It is.

According to a second aspect of the present invention, first, a cleaning liquid is injected from a specific first injection nozzle among a plurality of first injection nozzles for a set time, and then another specific first injection is performed. The cleaning liquid is jetted from the nozzle only for the set time, and at the same time, the cleaning liquid is jetted from the second jet nozzle over a wide range.

As described above, according to the second aspect of the present invention, the cleaning liquid is sequentially sprayed for each specific first injection nozzle, and at the same time, the cleaning liquid is sprayed over a wide range from the second injection nozzle. Therefore, when chips are washed out of the concave portion by spraying the cleaning liquid from a specific first spray nozzle, at the same time, the chips washed out by spraying the cleaning liquid from the second spray nozzle over a wide area. Even if the dust adheres to the vicinity of the outside of the concave portion, the chips are washed away from the object to be cleaned by the above-described injection of the cleaning liquid from the second injection nozzle.

[III] According to the feature of the third aspect, first, the cleaning liquid is jetted from a specific first injection nozzle among a plurality of first injection nozzles for a first set time, and the same specific first injection nozzle is sprayed. Compressed air is injected from the injection nozzle only for a second set time, and then from another particular first injection nozzle to the first
The cleaning liquid is injected only during the set time, and the compressed air is injected only from the same specific first injection nozzle during the second set time, and at the same time, the cleaning liquid is injected from the second injection nozzle. Injected over a wide range. In such a large number of first injection nozzles, the injection of the cleaning liquid and the compressed air from the specific first injection nozzle, the injection of the cleaning liquid and the compressed air from the next another specific first injection nozzle, and the further another specific The operation of injecting the cleaning liquid and the compressed air from the first injection nozzle is performed, and at the same time, the cleaning liquid is injected over a wide range from the second injection nozzle.

As described above, according to the third aspect of the present invention, the compressed air is injected from the same first injection nozzle to which the cleaning liquid has been injected while the cleaning liquid is being injected sequentially for each specific first injection nozzle. At the same time, the cleaning liquid is sprayed over a wide range from the second spray nozzle. Thereby, when the chips are washed out from the concave portion by the injection of the cleaning liquid from the specific first injection nozzle, the subsequent injection of the compressed air from the same specific first injection nozzle,
Further, even if the washed chips are attached to the vicinity of the outside of the concave portion due to the spray of the cleaning liquid from the second spray nozzle over a wide area, the chips are cleaned by the above-described injection of the compressed air and the cleaning liquid. They are blown off and washed away from the objects themselves.

[IV] According to the feature of claim 4, similar to the case of claim 2 or 3, the "action" described in the above-mentioned [II] or [III] is provided. It has various “actions”. According to the feature of the fourth aspect, the second injection nozzle that injects the cleaning liquid over a wide range is directed to the surface of the object to be cleaned away from the injection position of the first injection nozzle (a machining hole or a concave portion such as a machining hole). ing.

Therefore, when the chips washed out of the concave portion by the injection of the cleaning liquid from the specific first injection nozzle tend to adhere to the vicinity of the outside of the concave portion, the chips from the same specific first injection nozzle are compressed. The aforementioned chips are blown off by the air injection. Conversely, the chips washed out from the recess,
When it comes to adhere to the surface of the object to be cleaned slightly away from the recess, the cleaning liquid is sprayed from the second spray nozzle,
The aforementioned chips are washed away.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION

(1) FIGS. 1 and 2 show an apparatus for cleaning a machined product such as a transmission case in an agricultural tractor, and a support table 1 on which an object W to be cleaned is mounted, and a guide rail on which wheels 1a of the support table 1 are mounted. 2. Support table 1 along guide rail 2
A first operation cylinder 4 for moving the cleaning chamber 3 to the cleaning chamber 3, a door 5 for the cleaning chamber 3 which is slid vertically, and the like.

A right wall portion 6 and a left wall portion 7 are fixed to the left and right sides of the guide rail 2 in the cleaning room 3, and an upper wall portion 8 is fixed over the right and left wall portions 6, 7. A back wall portion 9 is disposed behind the cleaning room 3. The back wall portion 9 is supported so as to be able to change the angle around the horizontal axis P1, and an operation lever 10 provided on the outside and the back wall portion 9 are connected by a link rod 11, and the back lever portion 9 is operated by the operation lever 10. Can be changed (the position can be changed to a plurality of positions in the range between the upright state shown in FIG. 1 and the angle inclined leftward in FIG. 1).
A front wall portion 12 is supported by a second operation cylinder 13 so as to be swingable around a horizontal axis P2 at an end of the upper wall portion 8 on the door 5 side.

As shown in FIGS. 1 and 2, a first spray nozzle 14 for spraying the cleaning liquid over a relatively narrow area and a second spray nozzle 15 for spraying the cleaning liquid over a relatively wide area are provided. , Right and left wall portions 6, 7, upper wall portion 8, back wall portion 9, front wall portion 12, and a large number of fixed to the support base 1 (for example, the total of the first and second spray nozzles 14, 15 About 1
About 20).

As shown in FIG. 2, when the object W to be cleaned is placed in the cleaning chamber 3, it faces each of a large number of recesses (such as screw holes and holes for oil passages) formed in the object W to be cleaned. As described above, the first injection nozzle 14 is arranged. Similarly, in a state where the object to be cleaned W is placed in the cleaning chamber 3, each of the relatively large concave portions (shaft holes and openings, etc.) formed in the object to be cleaned W and a surface having no concave portion are opposed to each other. like,
The second injection nozzle 15 is provided.

(2) Next, the first and second injection nozzles 14,
15 circuit configurations will be described. As shown in FIG.
The multiple first and second injection nozzles 14 and 15 are
2,3,4,5,6,7,8,9 groups G1, G2
G3, G4, G5, G6, G7, G8, and G9 are divided into small numbers. First to eighth groups G1 to G8
Are mixed with the first and second injection nozzles 14 and 15 (for example, the total number of the first and second injection nozzles 14 and 15 is about 12 in one group, and The proportions of the numbers of the first and second ejection nozzles 14 and 15 are different in each of the first to eighth groups G1 to G8), and the ninth group G9 includes only the second ejection nozzle 15. The first and second injection nozzles 14 and 15 of the first to ninth groups G1 to G9 include right and left wall portions 6 and 7,
The upper wall portion 8, the back wall portion 9, the front wall portion 12, and the support table 1 are separately arranged.

A cleaning liquid (about 70 ° C.) is supplied from a tank 16 by a pump 17 to four electromagnetically operated first, second, third, and fourth on-off valves 21, 22, and 2 from an electromagnetically operated switching valve 18.
The third injection nozzle 15 of the ninth group G9 is connected to the check valve 20, and the air compressor 19
(Supplying compressed air at normal temperature) is connected to the switching valve 18.

The first and second injection nozzles 14 and 15 of the first and second groups G1 and G2 are connected in parallel to the first opening / closing valve 21 via the first switching valve 31, and the third and fourth injection nozzles are connected. First and second injection nozzles 14, 15 of groups G3, G4
Are connected in parallel to the second on-off valve 22 via the second switching valve 32. The first and second injection nozzles 14, 15 of the fifth and sixth groups G5, G6 are connected in parallel to the third on-off valve 23 via the third switching valve 33, and the seventh and eighth groups G7, G7, G8 first and second injection nozzles 14,
15 is connected in parallel to the fourth on-off valve 24 via the fourth switching valve 34.

As shown in FIGS. 1 and 2, in the first and second injection nozzles 14 and 15 of the first to ninth groups G1 to G9, right and left wall portions 6 and 7, upper wall portion 8 and back wall portion. Part 9, the first and second injection nozzles 1 arranged on the front wall part 12
Reference numerals 4 and 15 denote first to fourth switching valves 31 via a hose 25.
To 34 and the check valve 20.

The first and second spray nozzles 14 and 15 arranged on the support table 1 are connected to a connection plug 26 provided at an end of the support table 1 via a hose 27. A connection plug 28 is also arranged below the back wall 9, and the first to fourth switching valves 31 to 34 and the check valve 20 are connected to the connection plug 28 via a hose 29. Thereby, as shown in FIGS. 1 and 2, when the support 1 is pulled into the cleaning chamber 3, the connection plug 26 of the support 1 is connected to the connection plug 28 of the cleaning chamber 3, and is disposed on the support 1. The first and second injection nozzles 14 and 15 are
The switching valves 31 to 34 and the check valve 20 are connected.

(3) Next, first to fourth switching valves 31 to 34
Will be described. As shown in FIG. 4 and FIG.
The fourth switching valves 31 to 34 include the case 35 and the operation cylinder 30.
The cleaning liquid (compressed air from the air compressor 19) from the pump 17 is supplied to the spool 36 via a hose 37.

A plurality of first ports 38 and a plurality of second ports 39 are formed in the case 35.
Are the first and second injection nozzles 14, 1 of the first group G1.
5 (first of the third, fifth and seventh groups G3, G5 and G7)
The second port 39 communicates with the first and second injection nozzles 1 and 2 of the second group G2.
4, 15 (fourth, sixth, eighth groups G4, G6, G8
The first and second injection nozzles 14, 15) communicate with each other.

When the spool 36 is slid upward by the operation cylinder 30 as shown in FIG.
The first and second injection nozzles 14 and 15 of the first group G1 are supplied to the first port 38 via the first port 38a (the first and second injection nozzles of the third, fifth and seventh groups G3, G5 and G7). 14, 15). Conversely, operating cylinder 3
When the spool 36 is slid downward by 0, the cleaning liquid (compressed air) is supplied from the inside of the spool 36 to the second port 39 via the elongated hole 36a, and the first and second injection nozzles 14 and 15 of the second group G2. (First and second injection nozzles 1 of fourth, sixth, and eighth groups G4, G6, G8
4, 15).

(4) -1 The cleaning apparatus is configured to wash the object to be cleaned W by alternately jetting a cleaning liquid and compressed air in the first half, and dry by jetting compressed air in the second half. Next, the flow of cleaning in the first half will be described with reference to FIGS.
It will be described based on.

As shown in FIG. 1, in a state where the support table 1 is outside, the support table 1 is placed on the portion to be cleaned W while being applied to the stopper 40 of the support table 1 (step S1). The angle of the back wall 9 is set by the operation lever 10 so as to match the shape of the stopper 40 side.

This cleaning apparatus is configured to be able to clean a plurality of types of objects W to be cleaned, and the position of the stopper 40 can be changed in the left-right direction on the paper of FIG. 1 so as to match the position of the object W to be mounted. The position of the stopper 40 is changed in advance according to the article W to be placed. In this case, since the first and second spray nozzles 14 and 15 are arranged so as to correspond to all the objects W to be mounted, depending on the type of the object W to be cleaned, the injected cleaning liquid (compressed) may be used. Air) does not hit the object W to be cleaned.
And second injection nozzles 14 and 15.

When the start button (not shown) is pressed after the object W to be cleaned is placed on the support table 1 (step S).
2) The pump 17 and the air compressor 19 start operating (step S3), and as shown in FIG. 2, the support 1 is pulled into the cleaning chamber 3 by the first operation cylinder 4 (step S4), and the second operation is performed. The front wall 12 is closed by the operation cylinder 13 (step S5), and the door 5 is lowered and closed (step S6).

Next, a fourth set time T4 corresponding to the cleaning time
Is started (step S7), the first on-off valve 21 shown in FIG. 3 is opened, and the second, third, and fourth on-off valves 2 are opened.
2, 23 and 24 are closed (step S8). The operating cylinder 30 causes the spool 36 of the first switching valve 31 to
First and second injection nozzles 14, 15 of the first group G1
(Step S9), and the switching valve 18 is operated toward the pump 17 (step S1).
0). As a result, as shown in FIG. 3, the cleaning liquid from the pump 17 is supplied to the first and second injection nozzles 1 of the first group G1.
4, 15 and the second injection nozzle 1 of the ninth group G9
5 and the cleaning liquid is sprayed onto the cleaning object W.

The above-described state corresponds to the first set time T1 (for example, 5
Seconds) (steps S11 and S12),
The switching valve 18 is operated toward the air compressor 19 (step S13), and the compressed air from the air compressor 19 is supplied to the first and second injection nozzles 14, 15 of the first group G1, and the second air of the ninth group G9. The compressed air is supplied to the injection nozzle 15 and is injected into the cleaning object W for the second set time T2 (for example, about 3 seconds) (Steps S14 and S15).

Next, the first switching valve 31 shown in FIG. 3 is operated toward the first and second injection nozzles 14 and 15 of the second group G2 (downward in FIG. 4) (step S19), and step S10 is performed. Return to Thereby, steps S10 to S18
As a result, the cleaning liquid is jetted from the first and second jet nozzles 14 and 15 of the second group G2 and the second jet nozzle 15 of the ninth group G9 onto the workpiece W for the first set time T1. From the first and second injection nozzles 14 and 15 of the same second group G2 and the second injection nozzle 15 of the ninth group G9 to the object W to be cleaned for the second set time T2.
During this time, compressed air is injected.

(4) -2 When the injection of the cleaning liquid and the compressed air by the first and second injection nozzles 14 and 15 of the first and second groups G1 and G2 and the ninth group G9 is completed, steps S17 and S18 are repeated. The process proceeds to S20 and the second on-off valve 22 shown in FIG.
Is opened, and the second, third, and fourth on-off valves 21, 23, and 24 are closed.

As a result, the operation of the spool 36 of the second switching valve 32 by the operating cylinder 30 (steps S21 and S27) and the operation of the switching valve 18 (steps S22 and S23) are performed in the same manner as in (4) -1. The first and second injection nozzles 14 and 15 of the third group G3 and the ninth
The cleaning liquid (first set time T1) and the compressed air (second set time T2) from the second spray nozzle 15 of the group G9 to the object to be cleaned W are injected (first set time T2), and the first and second of the fourth group G4. Injection nozzles 14, 15 and ninth group G9
Of the cleaning liquid (the first
(Set time T1) and injection of compressed air (second set time T)
2) is performed.

Next, the process proceeds from steps S25 and S26 to step S28, where the third on-off valve 23 shown in FIG. 3 is opened, and the first, second, and fourth on-off valves 21, 22, and 24 are closed. . As a result, the operation of the spool 36 of the third switching valve 33 by the operating cylinder 30 (steps S29 and S35) and the operation of the switching valve 18 (steps S30 and S31) are performed in the same manner as in (4) -1. Injection of the cleaning liquid (first set time T1) and compressed air from the first and second injection nozzles 14 and 15 of the fifth group G5 and the second injection nozzle 15 of the ninth group G9 to the workpiece W (second The set time T2) is performed, and the first and second sets of the sixth group G6 are performed.
The injection nozzles 14, 15 and the second of the ninth group G9
Injection of the cleaning liquid (first set time T1) and compressed air (second set time T2) from the injection nozzle 15 to the workpiece W is performed.

Next, the process proceeds from steps S33 and S34 to step S36, where the fourth on-off valve 24 shown in FIG. 3 is opened and the first, second and third on-off valves 21, 22, 23 are closed. . Thus, the operation of the spool 36 of the fourth switching valve 34 by the operating cylinder 30 (steps S37 and S43) and the operation of the switching valve 18 (steps S38 and S39) are performed in the same manner as in (4) -1. Injection of the cleaning liquid (first set time T1) and compressed air from the first and second injection nozzles 14 and 15 of the seventh group G7 and the second injection nozzle 15 of the ninth group G9 to the workpiece W (second The set time T2) is performed, and the first and second groups of the eighth group G8 are set.
The injection nozzles 14, 15 and the second of the ninth group G9
Injection of the cleaning liquid (first set time T1) and compressed air (second set time T2) from the injection nozzle 15 to the workpiece W is performed.

As described above, the injection of the cleaning liquid and the compressed air from the first and second injection nozzles 14 and 15 of the eighth group G8 and the second injection nozzle 15 of the ninth group G9 to the workpiece W is completed. At this time, if the fourth set time T4 corresponding to the cleaning time has not yet elapsed (step S4).
0), steps S41 and S42 to step S7 in FIG.
Then, the injection of the cleaning liquid and the compressed air is repeated in the same manner as described above.

In this case, the configuration is such that the length of the fourth set time T4 can be arbitrarily changed. If the fourth set time T4 is set to be relatively long, steps S8 to S4 are performed.
After Step 3 is repeated several times, steps S16,
The process proceeds from S24, S32, and S40 to step S44 in FIG. 10 described below, and the cleaning is completed. Conversely, the fourth set time T
4 is set to a short value, steps S16 and S16 in the middle from step S8 until reaching step S43 for the first time.
The process proceeds from S24, S32, and S40 to step S44 in FIG. 10 described below, and the cleaning is completed.

(5) -1 Next, the drying flow in the latter half is described with reference to FIGS.
12 will be described. When the cleaning is completed as described in (4) -1 and (2) above, the pump 17 shown in FIG. 3 is stopped (Step S44), the switching valve 18 is operated to the air compressor 19 side (Step S45), and the first pump is operated. The fourth switching valves 31 to 34 are in the first, third, fifth and seventh groups G1 and G
The operation is performed on the G3, G5, G7 side (upward on the sheet of FIG. 4) (step S46). The first on-off valve 21 is opened, and the other second, third, and fourth on-off valves 22, 23, and 24 are closed (step S47). Thereby, the compressed air from the air compressor 19 is supplied to the first and second injection nozzles 14 and 15 of the first group G1 and the ninth group G9.
, And the compressed air is injected into the cleaning object W for a third set time T3 (for example, about 5 seconds or 6 seconds) (steps S48 and S49).

Next, the second on-off valve 22 is opened and the other first, third and fourth on-off valves 21, 23, 24 are closed (step S50), and the compressed air from the air compressor 19 is discharged. The compressed air is supplied to the first and second injection nozzles 14 and 15 of the third group G3 and the second injection nozzle 15 of the ninth group G9, and the compressed air is supplied to the cleaning target W for a third set time T3 (for example, 5 seconds or 5 seconds). It is injected only for about 6 seconds (steps S51, S52).

Next, the third on-off valve 23 is opened and the other first, second and fourth on-off valves 21, 22, 24 are closed (step S53), and the compressed air from the air compressor 19 is discharged. The compressed air is supplied to the first and second injection nozzles 14 and 15 of the fifth group G5 and the second injection nozzle 15 of the ninth group G9, and the compressed air is supplied to the cleaning target W for a third set time T3 (for example, 5 seconds or 5 seconds). It is injected only for about 6 seconds (steps S54 and S55).

Next, the fourth on-off valve 24 is opened and the other first, second and third on-off valves 21, 22, 23 are closed (step S56), and the compressed air from the air compressor 19 is discharged. The compressed air is supplied to the first and second injection nozzles 14 and 15 of the seventh group G7 and the second injection nozzle 15 of the ninth group G9, and the compressed air is supplied to the cleaning target W for a third set time T3 (for example, 5 seconds or 5 seconds). It is injected only for about 6 seconds (steps S57, S58).

As described above, the first, third, fifth and seventh groups G
1, G3, G5, G7 first and second injection nozzles 14,
When the injection of the compressed air from the second injection nozzle 15 of the ninth group G9 and the ninth group G9 ends, the first to fourth switching valves 3
1 to 34 are the second, fourth, sixth and eighth groups G2, G4 and G
6, the operation is performed on the G8 side (downward in FIG. 4) (step S59), and the process returns to step S47 in FIG.

As a result, the same operation as described above is performed.
First and second injection nozzles 14, 1 of the second group G2
5 and the injection of compressed air from the second injection nozzles 15 of the ninth group G9 (third set time T3) (step S4)
7, S48, S49), injection of compressed air from the first and second injection nozzles 14, 15 of the fourth group G4, and the second injection nozzle 15 of the ninth group G9 (third set time T3) (step S50) , S51, S52), injection of compressed air from the first and second injection nozzles 14, 15 of the sixth group G6, and the second injection nozzle 15 of the ninth group G9 (third set time T3) (step S53, S5
4, S55), injection of compressed air from the first and second injection nozzles 14, 15 of the eighth group G8 and the second injection nozzle 15 of the ninth group G9 (third set time T3)
(Steps S56, S57, S58) are performed.

(5) -2 Next, the first to fourth switching valves 31 to 34 are operated toward the first, third, fifth, and seventh groups G1, G3, G5, and G7 (upward in FIG. 4) (step). S60), the first to fourth on-off valves 21 to 21
24 is opened (step S61). This allows
The compressed air from the air compressor 19 is
First and second of the 5,7 groups G1, G3, G5, G7
The injection nozzles 14, 15 and the second of the ninth group G9
The compressed air is supplied to the injection nozzle 15 and is injected into the cleaning object W for a third set time T3 (for example, about 5 seconds or 6 seconds) (steps S62 and S63).

Next, the first to fourth switching valves 31 to 34 are switched to the second,
The compressed air from the air compressor 19 is operated to the 4, 6, 8 groups G2, G4, G6, G8 side (downward in FIG. 4) (step S64), and the second, 4, 6, 6, 8 groups G2, The compressed air is supplied to the first and second injection nozzles 14 and 15 of G4, G6, and G8 and the second injection nozzle 15 of the ninth group G9, and the compressed air is applied to the cleaning target W for a third set time T3 (for example, 5 seconds). Or about 6 seconds) (steps S65 and S66).

The drying of the object to be cleaned W is completed as described above. Thereafter, the air compressor 19 is stopped (step S67), and the first to fourth switching valves 31 to 34 are operated.
Is operated toward the first, third, fifth, and seventh groups G1, G3, G5, and G7 (upper side in FIG. 4) (step S68).
Then, as shown in FIGS. 2 to 1, the door 5 is lifted and opened (step S69), and the front wall 12 is opened by the second operation cylinder 13 (step S7).
0), the support table 1 is taken out of the cleaning chamber 3 by the first operation cylinder 4 (Step S71).

[Another Embodiment of the Invention] Step S in FIG.
8 to step S43 in FIG. 9, in order from the first and second injection nozzles 14 and 15 of the first group G1.
The first and second injection nozzles 14, 15 of the eighth group G8
Although the cleaning liquid and the compressed air are configured to be jetted, the order may be arbitrarily changed. In the configuration shown in FIG. 3, besides the pump 17, a dedicated pump (not shown) that constantly supplies only the cleaning liquid to the second injection nozzles 15 of the ninth group G9 may be provided. Thereby, the switching valve 18 is operated to the air compressor 19 side in FIGS. 6, 7, 8, and 9, and the compressed air is injected from the first and second injection nozzles 14 and 15 of the first to eighth groups G1 to G8. In this case, the cleaning liquid is ejected from the second ejection nozzles 15 of the ninth group G9.

The configuration for changing the setting of the order described above may be applied to step S46 in FIG. 10 to step S59 in FIG. In step S8 of FIG. 6 to step S43 of FIG. 9, the first and second set times T1 and T2 may be arbitrarily set and changed. Furthermore, the length of each of the first set times T1 shown in FIGS. 6, 7, 8, and 9 may be changed so as to be different from each other, and the first and second set times T1 and T2 are the same. The length may be set. In step S46 of FIG. 10 to step S68 of FIG. 12, the third set time T3 may be arbitrarily set and changed.

Instead of the configuration in which the fourth set time T4 corresponding to the cleaning time is set, the first and second sets of the first group G1 are replaced.
The number of repetitions is set, such as how many times the operation of supplying the cleaning liquid and the compressed air from the injection nozzles 14 and 15 to the first and second injection nozzles 14 and 15 of the eighth group G8 is performed. May be configured to shift from step S43 in FIG. 9 to step S44 in FIG.

[0052]

According to the features of claim 1, 2 or 3,
In the apparatus for cleaning a machined workpiece configured so that the cleaning liquid is sequentially injected for each specific injection nozzle, by injecting compressed air during each injection of the cleaning liquid, or by another second injection By injecting the cleaning liquid over a wide area by the nozzle, or by injecting the cleaning liquid over a wide area by another second injection nozzle while injecting compressed air during each time the cleaning liquid is being injected,
The chips washed out from the recesses can be reliably removed without leaving the objects to be cleaned, and the cleaning performance of the cleaning device can be improved.

According to the feature of claim 4, claim 2 or 3
The effect of the invention according to claim 2 or 3 as in the case of
It has. According to the feature of the fourth aspect, whether the chips washed out from the concave portion adhere to the vicinity of the outside of the concave portion or to the surface of the object to be cleaned slightly away from the concave portion, It is possible to reliably remove the chips that have been washed out from the object without leaving them on the object to be cleaned, so that the cleaning performance of the cleaning device can be further improved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view of a cleaning apparatus before an object to be cleaned is drawn into a cleaning chamber and operated.

FIG. 2 is a longitudinal sectional side view of the cleaning apparatus in a state after an object to be cleaned is taken out of a cleaning chamber and operated.

FIG. 3 is a circuit diagram showing a supply system of a cleaning liquid and compressed air to first and second injection nozzles.

FIG. 4 is a longitudinal side view of the first, second, third, and fourth switching valves.

FIG. 5 is a diagram showing a flow of cleaning in the cleaning device.

FIG. 6 is a diagram showing a flow of cleaning in the cleaning device.

FIG. 7 is a diagram showing a flow of cleaning in the cleaning device.

FIG. 8 is a diagram showing a flow of cleaning in the cleaning device.

FIG. 9 is a diagram showing a flow of cleaning in the cleaning device.

FIG. 10 is a diagram showing a flow of drying in a cleaning device.

FIG. 11 is a diagram showing a flow of drying in a cleaning device.

FIG. 12 is a diagram showing a flow of drying in a cleaning device.

[Explanation of symbols]

 Reference Signs List 14 injection nozzle, first injection nozzle 15 second injection nozzle 17 pump T1 set time, first set time T2 second set time W object to be cleaned

Claims (4)

[Claims] A plurality of injection nozzles capable of injecting a cleaning liquid and compressed air to each desired position on an object to be cleaned; a cleaning liquid supplied from a pump to a specific one of the plurality of injection nozzles; Cleaning liquid supply means for preventing the supply of the cleaning liquid to the spray nozzle; compressed air supply means for supplying compressed air to the specific injection nozzle to which the cleaning liquid has been supplied from the pump by the cleaning liquid supply means; After the unit is operated for the first set time, the state of operating the compressed air supply unit for the second set time is repeated, and each time the operation of the cleaning liquid supply unit is started, the specific injection nozzle is separated. And an operation switching means for changing to a specific spray nozzle. 2. A plurality of first injection nozzles capable of injecting a cleaning liquid to each desired position on an object to be cleaned, and a cleaning liquid applied to the object to be cleaned over a wider range than the first injection nozzle sprays the cleaning liquid. And supplying a cleaning liquid from a pump to a specific first injection nozzle of the plurality of first injection nozzles and not supplying the cleaning liquid to the other first injection nozzles. A first cleaning liquid supply unit, a second cleaning liquid supply unit for supplying a cleaning liquid from a pump to the second spray nozzle, and a state in which the first cleaning liquid supply unit is operated for a set time in a state where the second cleaning liquid supply unit is operated. Operation switching means for changing the specific first injection nozzle to another specific first injection nozzle and operating the first cleaning liquid supply means again for a set time. Ete certain cleaning device of the machine the workpiece. 3. A plurality of first injection nozzles capable of injecting a cleaning liquid and compressed air to each desired position on an object to be cleaned, and the object to be cleaned over a wider range than the first injection nozzle sprays the cleaning liquid. A second injection nozzle capable of injecting a cleaning liquid and compressed air onto an object; a cleaning liquid supplied from a pump to a specific first injection nozzle of the plurality of first injection nozzles; A first cleaning liquid supply means for preventing supply of the cleaning liquid, a second cleaning liquid supply means for supplying a cleaning liquid from a pump to the second injection nozzle, and the specific liquid supplied with the cleaning liquid from the pump by the first cleaning liquid supply means. Compressed air supply means for supplying compressed air to the first injection nozzle, and operating the first cleaning liquid supply means for a first set time, and then operating the compressed air supply means for a second set time. Operating state switching means for changing the specific first injection nozzle to another specific first injection nozzle each time the operation of the first cleaning liquid supply means is repeated and the operation of the first cleaning liquid supply means is started. Equipment for cleaning workpieces. 4. The method according to claim 1, wherein the first spray nozzle is set to face a machined hole or a machined hole formed in the object to be cleaned.
The machined object cleaning apparatus according to claim 2 or 3, wherein the second spray nozzle is set so as to face the surface of the object to be cleaned other than the machined hole and the machined hole.