JPH0315187Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Technical Field] The present invention relates to a workpiece cleaning device, particularly a large-sized workpiece cleaning device.

[Conventional technology]

Conventionally, when the final process of a processing line in a production system installed in an unmanned machine tool factory or the like is completed, a cleaning device is generally provided to clean chips accumulated on a workpiece or a pallet.

Among these cleaning devices, especially for cleaning large workpieces, conventionally, multiple nozzles for jetting air toward the workpiece are fixedly arranged in a chamber into which the workpiece is taken in to clean it, and the air is simultaneously A cleaning device is used that cleans the workpiece in a sealed room by spraying water.

[The problem that the idea attempts to solve]

However, in the conventional cleaning device, a plurality of nozzles are fixedly arranged in a sealed room, and air is ejected from the nozzles toward the workpiece at the same time, so the amount of air ejected is large. Furthermore, since air is blown out at the same time, there is a problem in that a disturbance occurs in the closed room, and the lower surface of the workpiece in particular cannot be cleaned completely and some chips remain.

This invention was proposed to solve the problem in view of the above facts, and its purpose is to improve the conventional large workpiece cleaning equipment, clean the entire surface of the workpiece, and achieve good cleaning efficiency. Our goal is to provide the best cleaning equipment.

[Means and actions to solve the problem]

In order to solve the above problems, this invention has a box-shaped main body with a closed shape to prevent chips from scattering outside during cleaning, and a workpiece to be cleaned inside the main body. a nozzle frame that is formed into a gate shape that encloses the workpiece and is provided so as to be movable back and forth over the entire length of the workpiece and constitutes a plurality of fluid flow paths; a first drive device that moves the nozzle frame; A plurality of workpiece upper cleaning nozzles attached to one of the plurality of flow passages to clean the upper part of the workpiece, and a plurality of workpiece lower part cleaning nozzles attached to the other of the plurality of flow passages to clean the lower part of the workpiece. and a flow path switching for switching the flow path so that fluid is supplied to the upper cleaning nozzle when the nozzle frame moves forward, and fluid is supplied to the lower cleaning nozzle when the nozzle frame moves backward. a chip storage section provided below the main body for storing and discharging the chips that have been washed and fallen to the outside of the main body; The cleaning device is characterized by comprising a door attached to the door so that it can be opened and closed, and a second drive device that opens and closes the door.

With the cleaning device of the present invention, the entire surface of the workpiece is cleanly cleaned by the air jet from the nozzle as the nozzle frame reciprocates, leaving no chips behind and reducing air consumption. Cleaning efficiency is improved.

〔Example〕

Hereinafter, one embodiment of the cleaning device of the present invention will be described in detail based on the drawings.

FIG. 1A is a front view of the cleaning device according to the present invention, FIG. 2 is a side view of FIG. 1A, and FIG. 3 is a side sectional view taken along the line A--A in FIG.

First, an overview of the cleaning device will be explained.

In FIG. 1A, a conveyance line for conveying workpieces is provided in front of the front of the cleaning device 1. As shown in FIG.
A workpiece W processed by an unillustrated machine tool is transported on this transport line by an unmanned cart, stops in front of the cleaning device 1, and is drawn into the cleaning device 1 by a pulling device. The workpiece W drawn into the cleaning device 1 is subjected to workpiece cleaning. The workpiece W that has been subjected to the predetermined workpiece cleaning is then sent out onto the conveyance line, and transported again to a predetermined storage location by the unmanned cart and stored therein.

The cleaning device 1 of the present invention includes a main body 2 formed in a box shape, and a nozzle formed in a gate shape so as to enclose a workpiece W in the main body 2, and provided so as to be movable back and forth over the entire length of the workpiece W. A frame body 3, a plurality of nozzles 4 and 7 attached to the nozzle frame body 3 for cleaning the workpiece W, and the main body 2 for discharging the washed chips to the outside of the machine. a hopper 5, which is a chip storage section provided below; and a door 6, which is attached to one wall of the main body 2 so that it can be opened and closed vertically, in order to carry the work W into and out of the cleaning device 1 from the conveyance line. The main components include a first drive device 30 for moving the nozzle frame 3, a second drive device 60 for opening and closing the door 6, and the like.

Next, the structure and opening/closing state of the door 6 attached to the front of the main body 2 when carrying the large workpiece W into and out of the main body 2 of the cleaning apparatus 1 will be explained.

As shown in FIG. 1A, the door 6 is opened and closed vertically by a second drive device 60 using the frames 2a, 2a of the main body 2 on the front wall of the cleaning device 1 as guide grooves. This second drive device 60 includes a motor 6 with a reduction gear.
01, sprocket 602, bearing unit 60
4, a shaft 605, sprockets 606, 607, a chain 608, etc. as main elements. In Fig. 1A and Fig. 2, the cleaning device 1
A reduction motor 601 for opening and closing the door 6 up and down is mounted on the upper right side of the door. The motor 60 with speed reduction
Rotation is transmitted from the sprocket 1 to the sprocket 602 via the output shaft. Angles 603, 603 are attached to the frames 2a, 2a on the front of the main body 2, and bearing units 604,
604 is fixed. The bearing unit 60
A shaft 605 is inserted into the shaft 4, 604, and sprockets 606, 606 are pivotally supported on both sides of the shaft 605. Furthermore, a sprocket 607 for transmitting rotation to the shaft 605 is pivotally supported beside the sprocket 606 on the right side. A chain 608 is installed between the sprocket 602 and the sprocket 607, and the motor 601 with a reduction gear rotates the shaft 60 through the output shaft, the sprocket 602, the chain 608, and the sprocket 607.
5.

Sprockets 606, 6 pivotally supported on the shaft 605
Chains 609, 609 are spanned over 06, and one end thereof is fixed to and integrated with the lower back surface 6a, 6a of the door 6. Also, chain 609, 609
The other end is fixed to an upper end 702a of a blower case 702, which will be described later.

Therefore, the output shaft, sprocket 602, and chain 608 are connected to the shaft 605 by the motor 601 with a reduction gear.
Rotation is transmitted via the sprocket 607. Further, as the shaft 605 rotates, one end of the chain 609 is fixed and integrated with the lower part 6a of the back side of the door 6 via the sprocket 606 and the chain 609, so the door 6 rises and swings due to the weight of the door 6. It is lowered and closed.

Next, a state in which the door 6 of the cleaning device 1 is raised and the large workpiece W is stored in the main body 2 with the door 6 open will be described.

FIG. 1A and FIG. 3 show a state in which the workpiece W is drawn into the main body 2 and cleaned.

The main body 2 of the cleaning device 1 is placed on a base on a column 201. As shown in FIG. 1A, the pillar 201
In the space, there are four pillars 202 for placing the workpiece W.
has been erected. Base 20 on the pillar 202
3 is placed on the column 202, and two rails 205 for guiding the pallet 204 are placed at the side end of the base 203 on the pillar 202, extending toward the back in the direction perpendicular to the plane of the paper, as shown in FIG. 1A. It is listed here. A guide block 204a at the bottom of the pallet 204 is guided on its side by a guide roller 206, and furthermore, a guide roller 207 suppresses the weight of the pallet 204.
A pulling device 208 is installed in the lower center of the pallet 204.
is placed, and the retracting device 208 and the base 203
A slider 209 is inserted between the
The pallet 204 is made easy to carry in and out. Note that a hydraulic cylinder 210 is attached to the retracting device 208, and the retracting device 208 is moved in the front-rear direction by driving the hydraulic cylinder 210.

Next, the nozzle frame 3 which is the main part of the cleaning device 1
I will explain about it.

As shown in FIG. 1A, a gate-shaped nozzle frame 3 is attached to the wall inside the main body 2 so as to enclose the workpiece W. This nozzle frame 3 is composed of a nozzle pipe 3a, a pipe 3b, a connecting pipe 3c, a nozzle pipe 3d, and a pipe 3e. A plurality of nozzles 7 for cleaning the lower part of the workpiece are respectively attached. The nozzle 4 for cleaning the upper part of the workpiece and the nozzle 7 for cleaning the lower part of the workpiece are structurally completely the same, but the only difference is the mounting height position.

The nozzles 4 and 7 are normal nozzles 4 that do not rotate.
a, 7a, and rotating nozzles 4b, 7 whose tips rotate.
It is composed of b. Of these, rotating nozzle 4
b and 7b are shown in FIG. 1B, which is a detailed view of section D in FIG. 1A. According to the figure, the rotating nozzles 4b, 7
In b, a bent nozzle 13 is rotatably supported via a bearing 11 on a joint 10 screwed onto a boss 3d provided on a nozzle pipe, and is configured to be rotatable by the action of air injection.

As shown in FIG. 3, the nozzle frame 3 is provided so as to be able to reciprocate over the entire length of the work W. Third
In the figure, there is a nozzle frame 3 in the upper part of the main body 2.
A drive motor 301 constituting a first drive device 30 for driving the nozzle pipes 3a, 3d, etc. is attached via a bracket 302. The first drive device 30 includes a drive motor 30
1. Brackets 302, 303, guide rail 3
04, Sprocket 305, 306, Chain 3
07, 311, etc. as main elements.

A guide rail 304 for moving the nozzle pipes 3a, 3d, and 3e constituting the nozzle frame 3 in the front-rear direction is attached to the upper part of the main body 2 via a bracket 302 and a bracket 303. Sprockets 305 and 306 are attached to the front and rear ends of the guide rail 304, and a chain 307 is spanned between the sprockets 305 and 306. Guide rail 30
4 includes nozzle pipes 3a, 3d of the nozzle frame 3,
Guide member 308 for moving 3e in the front and back direction
is inserted and fitted, and both ends of a chain 307 spanning sprockets 305 and 306 are fixed to a guide member 308. Further, the output shaft 309 of the drive motor 301 and the shaft 310 of the sprocket 305 are mounted by a chain 311.

Therefore, the nozzle pipes 3a and 3b of the nozzle frame 3 are connected to the output shaft 30 from the drive motor 301.
9. The chain 30 transmits rotation to the shaft 310 via the chain 311, and further extends from the shaft 310 to the sprocket 305 and the sprocket 306.
7 in the front-back direction as shown by the arrow, the guide member 308 fixed and integrated with the chain 307 moves in the front-back direction as shown by the arrow along the guide rail 304. As a result, the nozzle pipes 3a, 3d, and 3e of the nozzle frame 3 are also moved in the front-back direction.

As shown in FIG. 3, a nozzle pipe 3a, which constitutes the nozzle frame 3,
b is screwed with screws 312, 312.

A connecting pipe 3c is connected to the pipe 3b. It is particularly desirable that the joint pipe 3c be in a position for cleaning the lower part of the workpiece W, as shown by the solid line in FIG. It may be placed in such a position as to wash from the center to the lower part of W, or it may be connected to other parts. Further, it would be even better if the connecting pipe 3c was not fixed and could be easily moved up and down. Nozzle pipes 3d and 3e are screwed onto the lower part of the joint pipe 3c. The lower ends of the nozzle pipes 3a and 3e and the upper and lower ends of the nozzle pipe 3d are closed by plugs 3f.

One end of high pressure braided hoses 313a, 313b is attached to the nozzle pipe 3a, pipe 3b, and the other end is attached to the bracket 302.
It is connected to position solenoid valves 314a and 314b.

And these two position solenoid valves 314a, 314b
constitutes the flow path switching member 314.

FIG. 4 is a model diagram showing only the nozzle pipe 3a, pipe 3b, and two-position solenoid valves 314a, 314b. The state shown in Figure 4 is the 2-position solenoid valve 31.
4a is in a passing state, and the high pressure braided hose 31
Air flows in 3a and is supplied to the nozzle pipe 3a, and air is injected from a nozzle 4, which is a nozzle for cleaning the upper part of the workpiece, attached to the nozzle pipe 3a, cleaning only the top and side surfaces of the workpiece W, but not cleaning the bottom surface. . In this case, nozzle pipe 3a, pipe 3b
Air is injected from the nozzle 4 while moving forward as described above.

Further, at the same time as the nozzle pipes 3a and 3b move back, the two-position solenoid valve is switched to create the opposite state. That is, by putting the 2-position solenoid valve 314b into the passing state, the high pressure braided hose 3
Air flows into the nozzle pipe 13b, passes through the nozzle pipe 3b and the connecting pipe 3c, is supplied to the nozzle pipes 3d and 3e, and is injected from the nozzle 7, which is a nozzle for cleaning the lower part of the workpiece, attached to the nozzle pipes 3d and 3e. , only the bottom surface of the workpiece W is cleaned.
(At this time, air is not injected from the upper side surface, so the workpiece and side surface are not cleaned.) If necessary, if the two-position solenoid valves 314a and 314b are set to the passing state at the same time and are all opened, the upper and It is also possible to clean the sides and bottom.

Next, a description will be given of the structure of the chip storage section 5 provided below the main body 2 in order to wash chips adhering to the large workpiece W and pallets and discharge the chips to the outside of the machine. do.

In FIGS. 1 and 2, four screw conveyors 501a, 501b, 501c and 501d are installed in the front and back direction between the pillars 201 and 201 at the bottom of the main body 2, and each screw conveyor 501a, 501b, 501c and 50
1d is connected to a drive motor 502 and is adapted to be rotated. In addition, each screw conveyor has 50
1a, 501b, 501c, and 501d are screws on the right and left, respectively, with the central portion in the length direction serving as a boundary, so that even when rotated in the same direction, chips are gathered to the center. Therefore, the work W
The chips adhering to the pallets are cleaned by air jet from the air nozzle, and are dropped onto the bottom surface of the main body 2 and transferred to each screw conveyor 501a, 501b, 5.
The rotation of 01c and 501d brings it closer to the center.

Furthermore, each of the above screw conveyors 501a, 50
1b, 501c, each screw conveyor 501a to 501c is provided as shown in FIGS.
One screw conveyor 503 is installed in a direction perpendicular to 01d, and this screw conveyor 503 is connected to a drive motor 504 and rotated. And each screw conveyor 501
The chips collected in the center by the screws a, 501b, 501c and 501d are further collected in the lower center of the main body 2 by the screw conveyor 503, and the chips accumulated in the lower center are It is discharged outside the machine from a certain point.

Next, after cleaning the workpiece W by blowing out air from the air nozzle, there is dust floating in the main body 2, so a device for removing the dust will be described.

In FIG. 1A and FIG. 2, filter cloths 701 are provided in both sides of the main body 2 in, for example, ten rows in the front-rear direction. A blower case 702 is placed on the top of the main body 2, and by driving a fan 703 installed in the blower case 702, dust is sucked into a filter cloth 701 and filtered by the filter cloth 701. The air is exhausted to the outside of the machine.

Next, regarding the operation of the cleaning device 1 in the cleaning state,
This will be explained based on the flowchart shown in FIG.

(a) A large workpiece W to be cleaned is fixed on a pallet 204 with a jig, and the pallet with the large workpiece W is transferred onto an unmanned trolley, transported to the front of the cleaning device 1, and stopped.

(b) The control device of the cleaning device 1 operates, and the operation of the cleaning device 1 itself starts according to the already installed program.

(c) The door 6 of the cleaning device 1 is opened by the driving operation of the second driving device 60.

(d) The large workpiece W is pulled from the unmanned cart by the pulling device 20
It is drawn into the main body 2 of the cleaning device 1 by the driving operation of the hydraulic cylinder 210 of 8.

(E) The door 6 of the cleaning device 1 is closed by the driving operation of the second drive device 60 that is opposite to the above (C).

(F) Next, the air nozzle 4 moves forward by the driving operation of the first drive device 30, and the upper surface of the large workpiece W is moved from the nozzle 4a attached to the nozzle pipe 3a of the nozzle frame 3 and the rotating nozzle 4b. Clean by spraying air. At the same time as switching to the 2-position solenoid valve 314b, the nozzle pipes 3a and 3b retreat, and at the same time air is injected from the nozzle 7a attached to the nozzle pipes 3d and 3e, air is also injected in a rotating state from the rotating nozzle 7b, and the large workpiece W is Clean the underside of the

(g) Door 6 opens in the same way as the operation in (c) above.

(H) The large workpiece W is pushed forward by the hydraulic cylinder 210 of the pulling device 208 and transferred onto the waiting unmanned cart.

The predetermined cleaning is completed by the operations (a) to (g) above, and the large workpiece W is transported to a predetermined storage location by an unmanned cart.

〔effect〕

As explained above, the cleaning device of the present invention has multiple nozzles for cleaning the upper part of the workpiece attached to one nozzle pipe and multiple nozzles for cleaning the lower part of the workpiece to another nozzle pipe. The nozzle pipe is movable back and forth as a nozzle frame. Then, the nozzle frame is moved from one direction to clean the workpiece.

Therefore, even if the workpiece is large, it can be cleaned by simply increasing the amount of movement of the nozzle frame.
Furthermore, the amount of air consumed during cleaning can be reduced.

In addition, in this cleaning device, the upper part and sides of the workpiece are cleaned with the nozzle for cleaning the upper part of the workpiece during the forward movement of the nozzle frame, and the lower part of the workpiece and the side part are cleaned with the nozzle for cleaning the lower part of the workpiece during the return movement of the nozzle frame. Since we use a cleaning method that cleans the pallet, after the top surface of the pallet is washed once, chips remaining on the top surface of the workpiece or chips floating in the air fall down, resulting in the pallet being washed. This eliminates the possibility of chips remaining on the top surface, further improving cleaning efficiency.

[Brief explanation of the drawing]

Fig. 1A is a front view of the entire cleaning device of the present invention, Fig. 1B is a detailed view of section D in Fig. 1A, Fig. 2 is a side view of Fig. 1A, and Fig. 3 is a front view of the entire cleaning device of the present invention. A in figure A
-A side cross section as seen from the arrow A; Figure 4 is a model diagram showing only the nozzle pipe and two-position solenoid valve, which are the main parts of the present invention; and Figure 5 is a flowchart explaining the operation of the cleaning device of the present invention. be. DESCRIPTION OF SYMBOLS 1... Cleaning device, 2... Main body, 3... Nozzle frame, 3a, 3d, 3e... Nozzle pipe, 3b...
...Pipe, 3c...Connection pipe, 4...Nozzle (nozzle for cleaning the upper part of the workpiece), 5...Hopper, 6
... Door, 7 ... Nozzle (nozzle for cleaning the lower part of the workpiece), 210 ... Hydraulic cylinder, 304 ... Guide rail, 314a, 314b ... 2-position solenoid valve (flow path switching section), 609 ... Chain.

Claims (1)

[Scope of utility model registration request] A main body formed in a box shape and having a sealed shape to prevent chips from scattering to the outside during cleaning;
A nozzle frame body is formed in a gate shape to enclose a workpiece to be cleaned within the main body, and is provided so as to be movable back and forth over the entire length of the workpiece, and constitutes a plurality of fluid flow paths, and a nozzle frame body for moving the nozzle frame body. 1 drive device, a plurality of workpiece upper cleaning nozzles attached to one of the plurality of flow passages for cleaning the upper part of the workpiece, and a plurality of workpiece upper cleaning nozzles attached to the other of the plurality of flow passages for cleaning the lower part of the workpiece. a plurality of workpiece lower cleaning nozzles; and a fluid flow system configured to supply fluid to the upper cleaning nozzle when the nozzle frame moves forward and to supply fluid to the lower cleaning nozzle when the nozzle frame moves backward. a flow path switching member for switching the flow path; a chip storage section provided below the main body for storing washed and fallen chips and discharging them out of the main body; A door attached to the wall of the building so that it can be opened and closed while maintaining a sealed state, and a second door that opens and closes the door.
A cleaning device comprising: a drive device;