JPS61101281A - Washing method and device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cleaning method and apparatus, and more particularly, the present invention relates to a cleaning method and apparatus, and more particularly, to a method for effectively removing cutting debris generated by cutting a workpiece by leading it out from a cleaning fluid discharge groove that is sequentially displaced. The present invention relates to a cleaning method and apparatus for cleaning.

For example, when cutting is performed on a casting or the like constituting an engine, such as drilling a jacket hole in a cylinder block, the cutting waste generated by the cutting must be effectively removed.

Generally, in the automobile industry, cleaning devices are employed to automatically remove cutting waste from relatively large workpieces such as cylinder blocks and cylinder heads.

This type of cleaning device is composed of a liquid cleaning device and an air blowing device. That is, a line is extended from the upstream cutting device to the downstream side, a tunnel mechanism is arranged along this line, and the liquid cleaning device and the air blow device are separated from the tunnel mechanism by a predetermined distance. They are arranged alternately.

Therefore, it is cut by a cutting machine, and for this reason,
A workpiece with cutting debris adhered to it is introduced into the tunnel, and first, the liquid cleaning device is energized. As a result, the cutting debris is washed away, and then the air blowing device blows out air at a predetermined pressure to the workpiece that has arrived just before the air blowing device, which further blows out the adhering cutting debris together with the cleaning fluid. It will be dropped.

Therefore, in this case, the liquid cleaning device and the air blowing device are each provided with a plurality of nozzles that eject liquid and air onto the workpiece.

By the way, in the above-mentioned conventional apparatus, cleaning of a workpiece having holes inside the cylinder head, cylinder block, etc. is carried out by spraying a cleaning liquid at a predetermined pressure from the nozzle toward the workpiece, in order to reduce the impact caused by the so-called pressurized liquid. Generally, this is done through

However, according to this cleaning method, the cleaning effect on the machined holes and the machined surface on the outer surface of the workpiece is extremely excellent, and cutting debris can be almost completely removed, but the pressure liquid does not reach the inside of the holes. cannot be reached. Therefore, the cutting debris adhering to the interior of the hole is not subjected to any impact due to the pressure, and is merely removed from the hole when the pressurized fluid flows down into the vehicle as a natural flow. Therefore, it has been pointed out that there is a risk that cutting debris may remain inside the holes, and that the cutting debris cannot be completely removed.

Therefore, as a result of intensive research and efforts, the inventors of the present invention have created a plate that closes off the four sides of a workpiece in which a plurality of holes are formed, and has holes corresponding to the holes of the workpiece formed on one side of the workpiece. A machine body with a single hole formed thereon is placed over the plate body to supply pressure liquid for cleaning into the blocked workpiece, and a plurality of plate bodies each having a single hole are placed on top of each other. By sequentially displacing a plate having several holes, and thereby leading the pressure fluid supplied into the workpiece to the outside sequentially through the holes, at least the pressure fluid inside the workpiece can be removed from a single hole. The cutting waste inside the hole is completely removed because it is led out only through the hole, and this is done sequentially for multiple holes by displacing the plate that formed the hole. It has been found that by doing so, the cutting waste in the hole is collected and completely removed by the ejected pressurized fluid, and the various inconveniences mentioned above are solved at once.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a cleaning method and apparatus that can completely remove cutting debris from a hole with a simple configuration and that can perform the cleaning process efficiently.

To achieve the above object, the present invention provides a nozzle block with a workpiece in which a plurality of holes whose positions are displaced from each other is bored, clamps the workpiece, and then drills the plurality of holes in the nozzle block. Closing with an opening/closing means, introducing a cleaning fluid into the workpiece, and selectively opening/closing the opening/closing means to sequentially draw out cleaning liquid from each hole to clean the inner wall of each hole. It is characterized by

Further, the present invention provides a nozzle block having a fluid passage connected to a fluid supply pipe to introduce a cleaning fluid, a conveying means for conveying a workpiece having a plurality of holes to the nozzle block, and a conveying means for conveying a workpiece to the nozzle block, and and a drive means for opening and closing the opening and closing means. The method is characterized in that one of the holes is opened and the pressure fluid supplied from the fluid supply pipe is jetted out from the hole of the can, thereby cleaning the inner wall of the hole.

Next, the cleaning method according to the present invention will be described in detail below with reference to the accompanying drawings, citing preferred embodiments in relation to the cleaning apparatus that implements the cleaning method.

In FIG. 1, reference numeral 10 indicates a cleaning device according to the present invention, and this cleaning device 10 includes a first housing 12 that includes a conveying device that can be displaced in horizontal and vertical directions, and a substantially central portion of the housing 12. The second bulge is formed in the vertical direction.
A housing 14 is included.

The first casing 12 and the second casing 14 have pillars 16a, 1
6b in a hollow manner, and the second housing 1
Legs 18a and 18b are disposed at the lower part of the housing 4 to support the second housing 14, which is especially heavy.

Incidentally, at both ends of the first housing 12, a first opening 15a for taking in a workpiece and a second opening 15b for discharging a workpiece are defined, and
Inside the housing 12, rail members 22.22 are installed which are supported in a hollow manner by the support columns 20a to 20j. Between the pillars 20a and 20b, that is, the second opening 15b
A first cylinder 24 is disposed directly below the support columns 20e and 2Of, and a second cylinder 26 is disposed directly below the center of the housing 14 between the support columns 20e and 2Of. 20j, that is, directly below the first opening 15a, a third cylinder 28 is disposed.

As can be seen from FIG. 2, the rail member 22.2
2 are arranged in equilibrium with each other, and as a result, the cylinder rod 24a of the first cylinder 24 can extend from between the rule members 22 to the opening 15b. Similarly, the cylinder rod 2 . 6 a of the second cylinder 26 can also extend between the rail members 22 . The rod 28a is also displaceable from between the rail members 22.22 towards the opening 15a.

Conveyance tables 3Qa and 30b are disposed on the rail members 22 and 22 with a predetermined distance between them, and rollers 32a and 32a are rotatably disposed on the lower surface of the conveyance table 30a, respectively. A roller 32b is rotatably mounted on the lower surface of the
, 32b are provided. In this case, the carrier 30a,
The cylinder rods 24a are located at the center of each cylinder 30b.
, 26a, 28a are formed into holes 36a, 36b for fitting pedestals 34a, 34b that engage with the pedestals 34a, 34b.

Next, a guide member 38 is provided on each of the transport tables 30a and 30b.
a, 38b are erected, the pedestal 34a engages with the guide member 38a, and the pedestal 34b engages with the guide member 38b.
engage with. That is, a holding member 40a that is bent in cross section is removably attached to the upper surface of the pedestal 34a, and a nozzle block 42a that contacts the lower surface of the workpiece is fixed to the upper part of the holding member 40a. The guide member 38a is inserted into holes (not shown) formed in the holding member 40a1 and the nozzle block 42a, respectively, and is inserted into the nozzle block 42a.
, guides the holding member 40a against movement in the vertical direction. Similarly, a bendable holding member 40b is removably arranged on the upper part of the pedestal 34b, and a nozzle block 42b that contacts the lower surface of the workpiece is mounted and fixed on the upper part of this holding member 40b. Similarly to the above, the nozzle block 42b
A hole (not shown) is formed in the holding member 40b, and the guide member 38b is inserted into this hole so that the nozzle block 42b and the holding member 40b can be displaced in the vertical direction.

At the upper ends of the nozzle blocks 42a and 42b, for example,
A hole portion 43a that sufficiently holds an uneven workpiece such as a cylinder head and communicates with a hole drilled in the workpiece;
43b is formed, and passages 46 are formed inside the nozzle blocks 42a and 42b to communicate with the holes 43a and 43b, respectively, for supplying cleaning liquid and compressed air to the workpiece W. is defined. This passage 46 can engage a supply pipe 48 for supplying cleaning liquid as well as air.

That is, as can be easily understood from FIG. 2, a hollow guide member 50 is supported on the side of the second housing 14 and extends in the horizontal direction. A supply pipe 48 is slidably disposed. The fluid supply pipe 4
A joint 52 for supplying cleaning liquid and compressed air is connected to the end of the cylinder 8, and a cylinder rod 56 of a cylinder 54 is further engaged with this joint 52. Incidentally, one end of the joint 52 is connected to a flexible tube 57 for supplying cleaning liquid and compressed air to the lower surface nozzle block 42a. Therefore, it is easily understood that when the cylinder 54 is energized, the cylinder rod 56 displaces the fluid supply pipe 48 and the joint 52 together, and the distal end of the fluid supply pipe 48 is fitted into the passage 46 and secured. , it will be done.

Next, in the above configuration, the second housing 14 has one
A pair of work clamp cylinders 58 and 60 are arranged to face each other. In this case, the cylinder rod 58a of the work clamp cylinder 58 is connected to a shaft 64a via a joint 62a, and a cylindrical body 66a is connected to the tip of the shaft 64a. Note that the cylindrical body 66a has a cylindrical sliding member 67a engaged with the shaft 64a at its tip.

On the other hand, the cylinder rod 6 of the work clamp cylinder 60
0a is connected to the shaft 64b via a joint 62b. The tip of this shaft 64b is connected to a cylindrical body 66b, and a cylindrical sliding member 67b that engages with the shaft 64b is engaged at the tip of the cylindrical body 66b, similarly to the cylindrical body 66a. As can be easily understood from FIG. 2, in this case, the axis 6
4b is larger in length than the shaft 64a, and a spline 68 is formed on this shaft 64b7. Therefore, a first gear 70 is engaged with the spline 68, and this gear 70 is connected to a second gear 7 which is pivoted on a rotational drive shaft 76 of a motor 74 supported by a support plate 72.
meshes with 8.

Next, above the work clamp cylinder 58 is a fluid supply pipe 8 for supplying cleaning liquid and cleaning air.
0 is arranged so as to be freely displaceable in the horizontal direction. That is, the cylinder 82 is attached to the housing 14, and the fluid supply pipe 8
0 can be inserted into the inside of the cylinder 82 and connected to the fluid supply port of the nozzle block holder.

Therefore, this nozzle block holder and the shaft 84 that holds the nozzle block holder at both ends thereof will be explained.

First, bearings 86a and 86b are provided in the housing 14, and the shaft 84 is rotatably supported by the bearings 86a and 86b. A housing 14 is attached to one end of this shaft 84.
a motor 88 external to the shaft 84 for rotating the shaft 84;
A rotary drive shaft 88a is connected to the rotary drive shaft 88a. As can be easily understood from FIGS. 1, 3, and 4, the shaft 84 is configured to have a square cross section, and its interior is provided with a passage 92a by partition walls 9Qa and 90b that intersect in a cross shape. , 92b, 92c and 92d are defined. In this case, the passages 92a to 92d communicate with the outside through openings 94a to 94d, and the shaft 8
Nozzle blocks 95a to 9 that spray cleaning fluid onto the workpiece at different positions are located in the center of the four surfaces of 4.
5d (see Figure 1).

Next, a description will be given of the first nozzle block holder 100a and the second nozzle block holder 100b that are attached to both ends of the shaft 84 configured as described above.

As shown in FIGS. 3 and 4, the nozzle block holder 100a has a body 101 with a square front face, and cylindrical bodies 102a, 102b, 102c and 102d extend in the axial direction of the cylinder 82 at the corners thereof. configured to exist. Moreover, the body 101 has the cylindrical body 1
Circular pipe line 104 opening inside 02a to 102d
a to 104d are formed. As shown in FIG. 2, these conduits 104a to 104d communicate with a hole 108 of the shaft 84 via an inclined surface 106.
are connected to the openings 94a to 94 through the passages 92a to 92d.
They communicate with d.

Therefore, the openings 94a to 94d are configured to communicate with passages 110a to 110d extending from the body 101 to the cylindrical bodies 102a to 102d, respectively. The respective passages 110a to 110d are connected to the cylindrical bodies 102a to 1
Pathways 112a, 112 that branch off in the middle of 02d
b, 114a.

114b, 116a, 116b, 118a, and 118b.

In this case, the passages 112b and 114a are connected to the body 101.
The passages 122a and 122b are connected to the passages 122a and 122b bored in the casing 120a which is bulged to the outside of the housing.
2a and 122b are communicatively connected to a triangular prism-shaped fluid introduction pipe 123a. On the other hand, the passages 114b and 116a are connected to the housing 12.
It communicates with passages 124a and 124b drilled in 0b, and these passages 124a and 124b communicate with a triangular prism-shaped fluid introduction pipe 123b. Furthermore, passages 116b, 1
18a are passages 126a and 12 bored in the housing 120c.
6b and these passages 126a, 126b.
communicates with the fluid introduction pipe 123c. Furthermore, passage 1
18b and 112a are passages 12 bored in the housing 120d.
8a, 128b and these passages 128a.
, 128b are connected to the fluid introduction pipe 123d. In this case, the passage 122a communicates with a nozzle hole (not shown) of a nozzle block 130a fixed along the axial direction of the cylinder 82 via the introduction pipe 123a, and the passage 122b also communicates with a nozzle hole (not shown) of the nozzle block 130b. Communicate with. Furthermore, the passage 124a is the introduction pipe 123b.
communicates with a nozzle hole of the nozzle block 130c via;
The passage 124b is similarly connected to the nozzle hole of the nozzle block 130d. The passage 126a is then connected to the nozzle hole of the nozzle block 130e via the introduction pipe 123c, and the passage 126b is similarly connected to the nozzle hole of the nozzle block 130e.
It communicates with the nozzle hole 30f. Furthermore, passage 128
A communicates with the nozzle hole of the nozzle block 130g via the introduction pipe 123d, and the passage 128b similarly communicates with the nozzle hole of the nozzle block 130h.

On the other hand, nozzle holding members 134a to 134d having cylindrical conduits 132a to 132d that are partially fitted into the cylindrical bodies 102a to 102d are slidably engaged, and each of the nozzle holding members 134a to 134d is connected to a pair of nozzle holding members 134a to 134d. The nozzle blocks 136a to 136d are removably held therein.

The nozzle block holder 100b has approximately the same configuration as the nozzle block holder 100a, and the pipe line 1
The difference is that it does not have 04a to 104d.

Therefore, in the present invention, in a workpiece in which a large number of holes are formed, pressure liquid for cleaning is supplied to each hole in a concentrated manner to remove cutting debris adhering to each hole. A cleaning mechanism is arranged inside the housing 14 at the same height as the nozzle block 42a. This cleaning mechanism 1
50 is shown in FIG. 5 and subsequent figures. This cleaning mechanism 150 is
4 includes a cylinder 152 disposed horizontally, and a cylinder rod 154 of this cylinder 152 is connected to the connecting member 15.
6 to one sliding member 158. The sliding member 158 is attached to the supporting members 160a, 1 inside the housing 14.
60b engages a guide member 162 supported in a hollow manner, and the sliding member 158 further holds a bending first leg 164. On the other hand, a second guide member 1 is installed inside the housing 14 on the opposite side of the guide member 162.
66 is disposed, and this guide member 166 is connected to a support member 168.
a and 168b in a hollow manner. Support member 1
68a and 168b further support a plate 172 extending in the longitudinal direction of the guide member 166 via bearings 170a and 170b, and a pair of upper and lower rollers 174 and 176 roll along the longitudinal direction of the plate 172, respectively. .

As can be easily understood from FIG. 6, the roller 174 is formed of a roller having two surfaces: a roller surface 174a that slopes toward the inside of the casing 14, and a horizontal surface 174b that is located outside of the roller surface 174a; 176 is movable by two surfaces having a plane 176a that is inclined toward the outside of the housing 14 and a horizontal plane 176b.

In this way, the plate 172 on which the rollers 174 and 176 roll has one end connected to the crank mechanism 17.
8, and one end of this crank mechanism 178 is further connected to a cylinder 180. Therefore, when the cylinder 180 is driven to displace the crank mechanism 178 in the direction of arrow A, the plate 172 connected to the crank mechanism 178 is displaced vertically upward, causing the roller 174 to rise. This will be easily understood.

Incidentally, the rotation shafts of the rollers 174 and 176 are rotatably supported by a vertical member 182, and the vertical member 182 is further connected to a second leg portion 184. There, the legs 164, 184 are connected to vertically extending holes 186.
A manifold support plate 188 is supported. As can be easily understood from FIG. 7, the manifold support plate 188 swingably holds the manifold 190 by means of pin members 192a and 192b.
There is a hole 194 transitioning from the vertical direction to the horizontal direction and extending further downward, that is, the hole 19
4a to 194m are drilled. Moreover, a slide Fi 196 is engaged with the lower end of this manifold 190,
One end of the slide plate 196 engages with the tip of a cylinder rod 200 extending from the cylinder 198 via a bent portion 197 . In this case, a plate 204 having oval grooves 202a to 202m formed therein is attached to the upper surface of the manifold 190, as shown in FIG.

Each hole of the groove 202 communicates with a bent hole 194 formed in the manifold 190.

That is, in this embodiment, the groove 202 consists of grooves 203a to 203m, as shown in FIG.
It consists of 94a to 194m. In addition, in the figure, reference numeral 210 is a mist collector for accommodating the mist generated by the cleaning liquid and compressed air inside the housing 14.

The cleaning method and cleaning apparatus according to the present invention are basically constructed as described above, and the functions and effects thereof will be explained next.

First, when the workpiece W1 arrives at the end of the first housing 12 by a transport device (not shown), the cylinder 28 is energized.
The pedestal 34b attached to the cylinder rod 28a of the cylinder 28 rises together with the holding member 40b to support the workpiece W1. In this case, a nozzle block 42b is fixed to the upper part of the holding member 40b, and this nozzle block 42b engages with the bottom of the workpiece W1 to firmly hold it. Therefore, the cylinder 28
is driven again and the workpiece W1 is lowered. The pedestal 34b that has reached the inside of the first casing 12 is located at the hole 3 of the transport platform 30b.
6b, and engages with the conveyance table 30b here. Next, the conveyance table 30b moves on the rail member 22 with the roller 32b.
, 32b are transported by a drive device (not shown) to the second
It is moved to just below the casing 14. At this time, the cylinder loft 28a is slightly lowered and released from the pedestal 34b in advance.

Due to this movement of the conveyance table 30b, the conveyance table 30a, which was already positioned directly below the second housing 14, moves to the cylinder 24 side. Note that since the transport table 30b performs the same operation in relation to the transport table 30a and the second housing 1'4, the transport table 30a will be explained here.

The pedestal 34a that engages with the conveyor table 30a on the cylinder 26 is moved by the cylinder rod 26a under the driving action of the cylinder 26.
performs a rising operation, so that it rises toward the second housing 14 side.

Since the nozzle block 42a is positioned on the holding member 40a disposed on the pedestal 34a, the workpiece W2 on the nozzle block 42a enters the inside of the second housing 14. When it reaches a predetermined position, cylinder 5
4 is energized, the supply pipe 48 is displaced horizontally together with the joint 52, and the fluid passage 4 of the nozzle block 42a is
6 and its tip are engaged. At the same time, the nozzle block 42a is sufficiently clamped and positioned by the engagement of the supply pipe 48.

Next, the work clamp cylinder 58 and the work clamp cylinder 60 facing it are driven, and the work clamp cylinder 58 displaces the cylinder rod 58a in the horizontal direction, and engages the cylindrical body 66a with the cylindrical conduit 132c of the nozzle holding member 134c. At the same time, the sliding member 67a inside the cylindrical body 66a is fitted into the cylindrical conduit 132c. As a result, the nozzle holding member 134c is displaced relative to the workpiece W2 and clamps the workpiece W2. At the same time, the work clamp cylinder 60 is energized and the shaft 64b is displaced, and the sliding member 67b of the cylindrical body 66b presses the nozzle block 136b in the same manner as above, and firmly engages with the other side of the work W2. . That is, the work W2 is clamped by the work clamp cylinders 58 and 60. In this case, the gear 78 of the motor 74 is meshed with the gear 70, which is in mesh with the gear 70 because it slides on the spline 68 cut into the shaft 64b.
The mesh with 8 will never break.

In the above configuration, if the cylinder 82 into which the liquid supply pipe 80 is fitted is driven to move in the horizontal direction,
The tip end fits into the cylindrical conduit 104c. If cleaning liquid is supplied from the fluid supply pipe 80, the cleaning liquid passes through the fluid supply pipe 80, enters the pipe line 104c, and reaches the passage 92C through the hole 108, as well as through the opening 94c, as shown by the arrow. and reaches the passage 110c. This passage 110c
Since the nozzle blocks 136c and 136d communicate with the cylindrical pipe line 132c, cleaning liquid is injected onto the workpiece W2 from the nozzle blocks 136c and 136d. On the other hand, the passage 110c is connected to the passages 116a and 116b. For this reason,
The cleaning liquid reaches the passages 124b and 126a, and the cleaning liquid is similarly poured onto the workpiece W2 from nozzle blocks 130d and 130e communicating with the respective passages. Moreover, since the cleaning liquid is also poured into the nozzle block 95c from the passage 92c of the shaft 84, the cleaning liquid is eventually supplied from the supply pipe 80 to the five surfaces of the workpiece W2. At the same time, cleaning liquid is also supplied from the fluid supply pipe 48 to the nozzle block 42a through the passage 46. This cleaning liquid is useful for removing cutting debris from the lower surface of the workpiece W2.

When the first cleaning step performed as described above is completed after a predetermined period of time has elapsed, the cylinder 26 is driven again and the cylinder rod 26a is lowered.

As a result, the nozzle block 42a and the workpiece W2 held therein integrally move downward to a predetermined position. During this time, the cleaning fluid supply force 5 from the fluid supply pipe 80 to the shaft 84 is stopped.

Next, the cylinder 82 is energized and the fluid supply pipe 80 performs a clocking operation, and its tip end is connected to the nozzle block holder 1.
00a is released from the cylindrical pipe 104c. In the same way, the cylinder 54 also performs a clocking-out operation, and the supply pipe 48 separates from the nozzle block 42a.

Thereafter, the motor 88 is driven to rotate, thereby causing the shaft 84 and the nozzle block holders 100a, 100
b rotate integrally. As a result, the next-stage nozzle blocks 130b and 130c occupy the lowest position. Next, the cylinder 26 is driven again and the workpiece W2 is raised. Therefore, the work clamp cylinders 58, 60 are energized again, and the sliding members 57a of the cylindrical bodies 66a, 66b are
, 67b are the nozzle block holders 100a, 1
00b is secured to the cylindrical bodies 102b, 102b, and the workpiece W2 is clamped.

In such a state, the cylinder 26 performs a clock-out operation, and the workpiece W2 is eventually moved to the workpiece clamp cylinder 58.
It is held in a hollow state while being clamped by 6G.

At this time, the liquid supply pipe 80 is connected to the pipe line 104b under the driving action of the cylinder 82, and then the fluid supply pipe 80 supplies the cleaning liquid into the shaft 84 again. Similarly to the above, the nozzle block 95 is applied to the workpiece W2 through the passage.
Cleaning liquid is supplied from ports b, 130b, 130c and 136c, 136c, and the cleaning liquid is ejected from the side and upper end of the workpiece.

Furthermore, the second part of the workpiece W2 cleaned by this
When the process is completed, the cylinder 26 is driven again and the operation to maintain the workpiece W2 is started. That is, the cylinder 26 is energized again to lower the workpiece to a predetermined position.

Next, the motor 88 is rotationally driven to rotate the shaft 84, and the next nozzle block 95a, 130a, 130
h, 136a, 136a, etc. occupy the lowest position. In this state, the cylinder 26 is energized and the work W
? is raised to a predetermined position, and then the work clamp cylinders 58, 60 and cylinder 82 are driven to
2 and connect the air supply system to the nozzle block holders 100a and 100b. That is, air is now supplied from the fluid supply pipe 80 to the nozzle blocks 95a, 130a, 130h.

Air at a predetermined pressure is ejected from 136a, 136a, and 42a onto the workpiece W2, removing the cleaning liquid together with the cutting debris. This operation is carried out by the nozzle block 95d1130g,
130f, 136d, and 136d to complete the four steps. Note that in the fourth step, air is not ejected from the nozzle block 42a.

When the cleaning process is completed as described above, the cylinder 26
is caused to move downward, and as a result, the workpiece W2 is seated in the hole 36 of the conveyance table 30.a together with the nozzle block 42a1 holding member 40a. Therefore, by driving a conveying device (not shown) in the horizontal direction, the rollers 32a, 32 of the conveying table 30a can be moved.
a moves on the rail member 22 and reaches the delivery portion. During this period, the workpiece W held on the conveyor table 30b
1 reaches just above the cylinder 26 as described above.

On the other hand, when the cylinder 24 is driven, the cylinder 24
The cylinder rod 24a raises the workpiece W2 to the outside of the housing 12 together with the nozzle block 42a, and takes out the workpiece W2 via a transport device (not shown). During this time, the mist collector 210 is constantly energized to effectively discharge the cleaning liquid and the mist from the compressed air inside the casings 12 and 14.

By the way, as mentioned above, in the cleaning device, for example,
It is not uncommon for a workpiece, such as a cylinder block, in which a large number of holes are formed to be subjected to a cleaning process in order to remove cutting debris adhering to the holes.

Even for such workpieces, the apparatus of the present invention can effectively achieve its functions. Therefore, an example thereof will be described next.

First, the nozzle block 95c of the shaft 84 is replaced to accommodate the workpiece W3 consisting of a cylinder head. In this case, a new nozzle block 250 is preferably supported on the shaft 84. Nozzle block 2
50 has branching passages 250a, 250b, and nozzles 252a,
252b is formed. The nozzles 252a and 252b fit into the holes of the workpiece W3.

On the other hand, the workpiece W3 is clamped to the nozzle holding members 134c and 134c in relation to the nozzle block holders 100a and 100b.
Similarly to the nozzles 252a and 252b, nozzles 256a and 256b are provided for supplying a pressure liquid consisting of cleaning liquid.
The nozzle holding members 258a and 258b formed with are engaged. That is, the nozzles 256a and 256b are in communication with the hole 254.

Therefore, after the preparation for the workpiece W3 is completed as described above, first, the workpiece is attached to the nozzle holding member 258a,
258b. In this case, the cylinder 26 is used to transport the workpiece W3 as in the embodiment described above.

Next, the cylinder 152 is driven with respect to the workpiece W3 clamped by the nozzle holding members 258a and 258b. As a result, the sliding member 158 is displaced in the direction of arrow B in FIG. 5 via the connecting member 156. For this reason, the legs 164 integral with said sliding member 158 are likewise displaced, and thus the legs 164 displace the manifold support plate 188 with the aid of the rollers 174, 176 which displace the plate 172. Therefore, the manifold 190 supported by the manifold support plate 188 can be displaced directly below the workpiece W3. Note that at this time, the tip of the cylinder rod 200 of the cylinder 198 has separated from the bent portion 197.

As described above, the cylinder 180 is next driven to the manifold 190 positioned directly below the workpiece W3. Crank mechanism 178, displaced by cylinder 180, pulls plate 172 upward. As can be easily understood from FIG. 6, the inclined surface 1 of the roller 174
74a can accommodate the inclined surface even if the plate 172 is displaced diagonally under the driving action of the crank mechanism 178, and similarly, the inclined surface 176a of the roller 176 is also tightly joined to the lower surface of the plate 172. It turns out. As a result of the plate 172 being pulled up as described above,
The plate body 204 in which a plurality of grooves 202 are formed is connected to the workpiece W.
It comes to be airtightly attached to the bottom surface of 3. At this time, the manifold 190 has the bin member 192 attached to the manifold support plate 188.
Since it is swingably supported via the pins 192a and 192b, the close contact state is preferably ensured. In this state, the cylinder 198 is driven and the end of the cylinder rod 200 engages with the bent end portion 197 of the slide plate 196. Therefore, pressure liquid for cleaning is supplied from the supply pipe 80, and this pressure liquid is supplied to the nozzles 256a and 256b.
Also, it is introduced into the hole 254 of the workpiece W3 from the nozzles 252a and 252b.

As shown in FIG. 9, this workpiece W3 has a hole 19 in advance.
A plurality of holes are drilled, holes AI to A13 corresponding to holes 4a to 194m. Therefore, the hole 25 of the workpiece W3
The pressure liquid that has reached the inside of 4 flows through these holes A in a state where the pressure is dispersed.
Each of them attempts to escape downward from A1 to A13. However, under the driving action of the cylinder 198, the slide plate 19
6 closes the opening tips of the holes 194a to 194m, making it impossible for the pressurized liquid in the holes 254 to escape to the outside. Then, the cylinder 198 is driven, thereby causing the slide Fi, 196 to be displaced in the direction of arrow A in FIG. As a result, the elongated hole 196a drilled in the slide plate 196 is inserted into the hole 194.
Connects to a. Therefore, the pressure liquid in the hole 254 is led out from the hole 194a through the long hole 196a. That is, the pressure liquid in the hole 254 is transferred to the hole 19.
As a result, the cutting waste adhering within the hole 194a can be effectively discharged to the outside.

Next, the cylinder 198 is driven again, the cylinder rod 200 is displaced, and the slide plate 196 is further displaced slightly in the direction of the arrow. For this reason, the elongated hole 196a of the slide plate 196 then communicates with the hole 194b.

Then, the pressurized liquid in the hole 254 again spouts out from the open end of the hole 254 to the outside through the elongated hole 196a.
Cutting debris adhering to the inner wall of 94b is also effectively removed.

In this way, the cutting waste of the workpiece W3 that adheres to the inner walls of the holes 194a to 194m is removed from the cylinder 198.
are removed one after another under the action of displacement in the A direction, and finally the cutting waste is completely removed from all of these holes. Here, as can be easily understood from FIG. 5, the grooves 202 in the plate body 204 are respectively displaced by a predetermined angle to form the slide plate 1.
It should be noted that the 96 elongated holes 196a are configured to communicate with these grooves one after another without overlapping. With this configuration, only a single groove can communicate with the elongated hole 196a, and as a result,
As described above, the pressure liquid can be ejected to the outside only from the groove communicating with the elongated hole 196a. This means that since the pressure liquid itself is concentrated in one groove, the pressure of the liquid reaching the hole is extremely strong, and therefore, the role of effectively removing cutting debris can be achieved.

In this way, when the removal of cutting waste from the workpiece W3 is completed, the cylinder 198 is driven again to open the cylinder mouth.
The throat 200 is displaced in the direction opposite to the direction of arrow A, and the slide plate 196 is returned to its original position. Then, the engagement between the bent portion 197 and the cylinder rod 200 is released, and the cylinder rod 200 is displaced in the direction of arrow A. Next, the cylinder 180 is driven to return to its original position, and for this purpose the crank mechanism 178 performs a rotational movement to displace the plate 172 to a horizontal position. That is, the work W
The close contact state of the body 204 with respect to 3 is released. Therefore,
The cylinder 152 is driven to drive the cleaning mechanism 150 in the direction opposite to the direction of arrow B, that is, in the direction of returning to the original position, and then the rollers 174 and 176 move the plate 1
72 and the sliding member 158 moves on the guide member 16.
It is possible to return to the original position by sliding on 2. Further, the cylinder 26 is energized again to bring it into contact with the lower part of the workpiece W3, and the clamp cylinders 58 and 60 are operated to withdraw the workpiece W3 to lead out the workpiece W3 to the outside as in the previous embodiment.

Next, still another embodiment of the cleaning device according to the present invention will be described in a first embodiment.
This is shown in FIGS. 0 to 12. In this embodiment, the same reference numerals as in the previous embodiment indicate the same components.

Therefore, in the device of the present invention, support rods 300 and 302 are further bridged in parallel to the leg portions 164 and 184, and this support rod 302
, cylinders 304a to 304m are arranged in parallel. The cylinder head tips of the respective cylinders 304a to 304m engage with arms 306a to 306m supported by the support rod 302, and these arms 306a to 30
At the tip of each of the 6m rods, there is a rod 3 as shown in Figure 11.
08, the opening/closing plates 310a to 310m are attached.

In the cleaning device having the above configuration, the workpiece W4 clamped by the clamp cylinders 58 and 60 is positioned below the nozzle block 250 as in the previous embodiment, and further, the cleaning mechanism is moved under the driving action of the cylinder 152. 150 is positioned directly below the workpiece W4.

The cylinder 180 is driven to displace the plate 172 slightly from the horizontal position, thereby causing the leg portion 18
4 side is raised to bring the opening/closing plates 310a to 310m into close contact with the lower surface of the workpiece W4. Therefore, pressure liquid for cleaning is supplied from the nozzle block 250a to the workpiece W4, and cleaning liquid is similarly supplied to the workpiece W4 from the nozzles 256a and 256b.

In this state, the cylinders 304a to 304
I11 is sequentially activated. As a result, the opening/closing plate 310
a to 310m are selectively rotated about the rod 308 as shown in FIG. 11, and as a result, pressurized liquid is discharged to the outside from the hole formed in the workpiece W4 as in the previous embodiment. That is, the opening/closing plates 310a to 310m usually play the role of sealing the cleaning pressure liquid into the workpiece by coming into close contact with the lower surface of the workpiece W4, but
Since each opening/closing plate performs an opening/closing operation under the selective driving action of the cylinders 304a to 304m, there is a hole in the workpiece W4 that opens, and the concentrated pressure fluid flows through the hole. is derived to the outside. As a result, cutting debris and the like adhering to the hole are completely removed under the action of the pressurized fluid.

In this way, the cylinder 152 is energized after cutting debris has been removed from all holes, and the cleaning mechanism 150
returns to its original position. Next, the cylinder 26 is energized and the cleaned workpiece W4 is led out, as in the previous two embodiments.

According to the present invention, it is possible to effectively and collectively supply cleaning pressure liquid even to a workpiece in which a large number of holes are formed as described above.

Therefore, it is possible to more effectively remove even the minute cutting debris attached to the inner wall of the hole than by simply removing the cutting debris by natural flow, and in particular, it is possible to clean workpieces that require precision such as cylinder heads. It becomes possible to suitably respond to Furthermore, as is easily understood from the above configuration example, the desired cutting waste removal effect can be achieved with an extremely simple structure. Therefore, the manufacturing cost is not very high, and since it is easy to handle, there is little fear of failure, and there are also advantages such as easy maintenance and inspection.

Although the present invention has been described above with reference to preferred embodiments, the present invention is not limited to these embodiments, and various improvements and changes in design can be made without departing from the gist of the present invention. Of course.

[Brief explanation of the drawing]

The figures relate to the cleaning device of the present invention, in which FIG. 1 is a front longitudinal sectional view of the main part, FIG. 2 is a side longitudinal sectional view of the main part, and FIG. 3 is a longitudinal sectional view of the main part.
The figure is a front view of the nozzle block, and Figure 4 is a cross-sectional view of the nozzle block taken along the line IV-IV in Figure 2. Figure 5 shows a cleaning mechanism for cleaning the holes in which many holes are drilled. FIG. 6 is a partial longitudinal sectional view showing the relative positional relationship between the cleaning mechanism and the nozzle block shown in FIG. 5, and FIG. 7 is a vertical sectional view showing the engagement relationship between the nozzle block and the cleaning mechanism. , FIG. 8 is a plan view showing the relationship between the plate and the slide plate constituting the cleaning device, FIG. 9 is a longitudinal cross-sectional view showing the positions of many holes formed in the workpiece, and FIG. FIG. 11 is a partially omitted front view of the device shown in FIG. 10, and FIG. 12 is a schematic plan view showing another embodiment of the cleaning device; FIG. FIG. 10...Cleaning device 12.14...Housing 15a
, 15b...opening 16a, 16b...pillar 18a
, 18b-・Legs 20a-20j・・Strut 22・
・Rail members 24, 26, 28...Cylinder 30a, 30b...Transfer platform 32a, 32b...O-ra 34a134b...Pedestal 36a, 36b - One hole 33a, 38b...Guide member 40a, 40b...Holding Members 42a, 42b... Nozzle blocks 43a, 43b... Hole portion 44... Engagement portion 46...
Passage 48...Fluid supply pipe 50...Guide member 52...Coupling 54...Cylinder 56...Cylinder rod 57...Tube 58.6
0... Work clamp cylinder 62a, 62b...
Joints 64a, 64b-・Shafts 66a, 66b・
・Cylindrical body 57a, 67b...Sliding member 68...Spline 70
... Gear 72 ... Support plate 74 ... Motor 76 ... Rotation drive shaft 78 ... Gear
80...Fluid supply pipe 82...Cylinder
84...Shaft 86a, 86b...Bearing 88...
- Motors 90a, 90b... Bulkheads 92a to 92d
...Passages 94a to 94d...Openings 95a to 95d...Nozzle blocks 100a, 100b...Nozzle block holder 10
1...Body 102a to 102d...Cylindrical body 104a to 104d...Pipeline 106 -- Surface 108... Hole 110a to 11Od.-
Passage 112a, 112b - Passage 114a,
114b...Aisle 116a, 116b...Aisle 1
18a, 118b--Passage 120a-120d...Housing 122a, 122b--Passage 123a-123d
...Fluid introduction pipes 124a, 124b...Passage 126a, 1
26b - Passage 128a, 128b - Passage ゛130a to 130h... Nozzle block 132a to 13
2d...Cylindrical pipe line 134a-134d...Nozzle holding member 136a-13
6d...Nozzle block 150...Cleaning mechanism
152...Cylinder 154...Cylinder rod 156...Connecting member 158...Sliding members 160a, 160b...Supporting member 162...Guiding member 164...Leg portion 1
66...Guide members 168a, 168b...Support members 170a, 170b
・-Bearing 172 ・・Plate 174, 176 ・・Roller 178 ・・Crank mechanism 180 ・・Cylinder 182 ・・Vertical member 184 ・・・Leg 1
86... Hole 188... Manifold support plate 190... Manifold 192a, 192b... Bin member 194a to 194m
・One hole part 196 ・・Slide plate 197
・・Bending portion 198 ・・Cylinder 200 ・・Cylinder rod 202 ・・・A204 ・・Plate 210 ・・Mist collector 250 ・・Nozzle block 250a, 250b・
・Passage 252a, 252b... Nozzle 254 ・
One hole portion 256a, 256b--Nozzle 258a, 258b--Nozzle holding member 300.30
2...Support rods 3048-3041T! ...Cylinder 306a to 306m...Arm 308...Rod 310a to 310m...Opening/closing plate

Claims (5)

[Claims] (1) A workpiece in which a plurality of holes with mutually displaced positions are bored is conveyed to a nozzle block, the workpiece is clamped, the plurality of holes are closed by an opening/closing means, and the workpiece is A cleaning method characterized by introducing a cleaning fluid into the hole, and selectively opening and closing the opening/closing means to sequentially draw out the cleaning liquid from each hole to clean the inner wall of each hole. (2) a nozzle block having a fluid passage connected to a fluid supply pipe to introduce cleaning fluid; a conveyance means for conveying a workpiece having a plurality of holes to the nozzle block; and a hole in the workpiece. and a driving means for opening and closing the opening/closing means, and selectively opens and closes the opening/closing means under the driving action of the driving means to open at least one of the plurality of holes. open the two holes,
A cleaning device characterized in that the pressure fluid supplied from the fluid supply pipe is ejected from the single hole to clean the inner wall of the hole. (3) In the cleaning device according to claim 2,
The opening/closing means includes a manifold having a number of holes corresponding to the holes of the workpiece, an opening/closing plate for closing the holes of the manifold, and a driving means for displacing the opening/closing plate, and the driving means has a driving action. A cleaning device that selectively opens holes in the manifold by sequentially displacing the opening/closing plate downward. (4) In the cleaning device according to claim 3,
A cleaning device in which the opening/closing means is displaced via a plate that moves under the driving action of a cylinder and is closely joined to a hole in a workpiece. (5) In the cleaning device according to claim 2,
A cleaning device in which the opening/closing means includes plates for respectively closing holes in the work, a crank arm connected to these plates, and a drive device connected to the crank arm and rotating the crank arm.