JPH1066941A - Parts washing equipment for automatic machine tools - Google Patents

Abstract

(57) [Summary] [PROBLEMS] In a system for cleaning machined parts discharged from an automatic machine tool, it is possible to wash the machined parts in a short period of time, thereby improving the removability of dirt and improving the dirt removal. It is an object of the present invention to prevent the splatter from scattering into the surrounding environment, and to achieve the miniaturization and space saving of the device. SOLUTION: Processed parts 3 continuously discharged from an automatic machine tool 2 are received by a plurality of baskets 16 in conjunction with a part discharge mechanism 4 of the automatic machine tool 2. Multiple baskets 1
6 is attached to the chain 13, and the basket 16 which has received the part 3 moves the chain 13 in the order of the installation positions of the part washing means (B), the part drying means (C) and the part discharge means 26 (D). It is circulated by driving. The automatic machine tool component cleaning apparatus having such a configuration is installed integrally with the automatic machine tool 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for cleaning components discharged from an automatic machine tool.

[0002]

2. Description of the Related Art For example, various industrial parts machined by automatic machine tools such as automatic lathes, automatic drilling machines, automatic milling machines, and the like include oils, greases, waxes, fluxes, and other processing oils, Various stains such as powder and dust are attached. The following two methods can be used to roughly clean various components to which such dirt adheres.

[0003] First, there is a method of temporarily stocking processed parts discharged from an automatic machine tool and, when a certain amount is reached, performing off-line cleaning using a separately prepared cleaning device. Secondly, there is a method in which processed parts discharged from an automatic machine tool are received by a conveyor such as a conveyor, and then sent to a dedicated cleaning device to wash dirt attached to the parts online. .

[0004]

Among the conventional parts cleaning methods described above, in the former method of cleaning parts offline, the processed parts are stocked for a certain period of time and then the dirt attached to the parts is cleaned. There is a problem in that the place where the parts are stocked and the surrounding area are contaminated, and the above-mentioned stains such as oil, grease, wax, and flux become more difficult to remove as the storage period is longer, for the following reasons. That is, the viscosity increases with the evaporation of the volatile components in the dirt, and the dirt sticks to the component surface and is difficult to remove.
In addition, a chemical reaction is caused by contact with oxygen or moisture in the air, or a chemical reaction between a component of dirt and a component changes the substance into a substance that is difficult to remove. Furthermore, new dirt such as dust and dirt adheres and accumulates from the surrounding environment during the storage period, and it becomes more difficult to remove dirt.

[0005] On the other hand, in the latter method of directly cleaning parts online, the automatic machine tool and the cleaning device exist independently as separate devices.
There is a problem that a transfer device is required and the entire device becomes large. This is contrary to the recent demand for space saving. In addition, since dirt such as oil is basically taken out between the automatic machine tool and the cleaning device, there is a problem that the surrounding environment and the like are contaminated.

[0006] For this reason, in a conventional system for cleaning processed parts discharged from an automatic machine tool, it is possible to clean the processed parts within a short period of time and to improve the dirt removal performance. It is an object of the present invention to prevent dirt from scattering into the surrounding environment and to achieve a reduction in the size and space of the apparatus.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and has been developed to realize an automatic processing which realizes cleaning of a machined part in a short time, prevention of dirt from scattering to the surrounding environment, downsizing of the apparatus, and the like. An object of the present invention is to provide a machine tool parts washing apparatus.

[0008]

According to a first aspect of the present invention, there is provided a component washing apparatus for an automatic machine tool, comprising: a plurality of machined parts which are continuously discharged from the automatic machine tool; Parts receiving means for receiving the parts in conjunction with the parts discharge mechanism of the automatic machine tool in the container, parts cleaning means for removing dirt from the parts received in the parts container, and discharging the cleaned parts out of the apparatus Component discharging means, and component transfer means for circulating the component storage container in the order of the installation positions of the component receiving means, the component cleaning means, and the component discharging means, and integrated with the automatic machine tool. It is characterized by being installed.

According to another aspect of the present invention, there is provided a component washing apparatus for an automatic machine tool, wherein a machined component continuously discharged from the automatic machine tool is automatically stored in a plurality of component storage containers. Parts receiving means for receiving the parts in conjunction with the parts discharge mechanism of the machine tool, washing means for washing the parts received in the parts container, part drying means for drying the washed parts, and the dried parts A component discharging means for discharging the component receiving container, a component receiving means, a component washing means, a component drying means, and a component discharging means for circulating the component receiving container in the order of the respective installation positions; It is characterized by being installed integrally with the machine tool.

[0010] In the above-described part washing apparatus for an automatic machine tool according to the present invention, the plurality of parts discharged from the automatic machine tool by the part receiving means may be combined into one part. It is characterized in that it is received in a storage container. Further, for example, as described in claim 5, the component transfer means is arranged to circulate and move the plurality of component storage containers in a vertical direction.

The automatic machine tool parts washing apparatus of the present invention is installed integrally with the automatic machine tool, and the machined parts are cleaned (washed and cleaned) in the washing machine integrated with the automatic machine tool. (E.g., drying), the processed parts can be cleaned in a short time without taking dirt out of the apparatus. Therefore, it is possible to prevent the dirt from scattering into the surrounding environment and easily remove dirt attached to the processed part. Further, since there is no need to separately provide a transport device or the like between the automatic machine tool and the cleaning device, the size and space of the automatic machine tool including the cleaning device can be reduced.

Further, by receiving a plurality of parts discharged from the automatic machine tool in one part container, the cleaning time, for example, the cleaning and drying time can be increased without reducing the processing capacity. Further, by making the component transfer means a vertical type so as to circulate and move the plurality of component storage containers in the vertical direction, it is possible to further reduce the size and space of the automatic machine tool including the cleaning device. .

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a state in which an automatic machine tool component washing apparatus 1 according to an embodiment of the present invention is attached to an automatic machine tool 2. As shown in FIG. 1, the automatic machine tool parts washing apparatus 1 is installed integrally with the automatic machine tool 2, and receives the machined parts 3 discharged from the automatic machine tool 2 at regular intervals. After removing dirt such as processing oil and cutting powder adhering to the surface of the component 3, the dust is discharged outside the apparatus.

Examples of the automatic machine tool 2 to which the automatic machine tool parts washing apparatus 1 is attached include automatic cutting machines such as an automatic lathe, an automatic drilling machine, and an automatic milling machine. The present invention can be applied to various kinds of automatic machine tools whose dimensions and the like are limited to a certain range and are discharged at a certain interval.

As shown in the side view of FIG. 2, the automatic machine tool parts washing apparatus 1 includes a pair of upper and lower sprockets 11 and 12.
, And a loop-shaped chain 13 is stretched over the sprockets 11 and 12. As shown in the front view of FIG. 3, the sprockets 11, 12 and the chain 13 are arranged in a left-right pair. A motor 15 is connected to the upper sprocket 11 via a speed reducer 14, and by driving the motor 15, the loop-shaped chain 13 is configured to circulate vertically. The lower sprocket 12
Can be replaced with a guide plate or the like.

Between the pair of right and left chains 13 driven in synchronization with each other, a plurality of component containers, for example, five baskets 16, 16... For receiving the processed components 3 discharged from the automatic machine tool 2. Are installed at equal intervals. As shown in FIG. 4, these baskets 16 are rotatably mounted between a pair of left and right chains 13 via a shaft 16a, and are suspended horizontally in a normal free state. The basket 16 is made of a mesh material such as a wire mesh so that the cleaning liquid, the drying air and the like directly act on the component 3.

The basket 16 as a parts container is
By driving the motor 15 on the chain 13 as the component transfer means, the chain 13 is circulated by one pitch in the order of the component receiving position A, the component washing position B, the component drying position C, and the component discharging position D. Of these, the part cleaning position B
The component drying position C functions as a component cleaning position.

The automatic machine tool parts washing apparatus 1 of this embodiment has a timing adjustment position E in addition to the four work positions described above. An empty basket 16 comes to the timing adjustment position E, but this is simply the chain 1
3 is for adjusting the basket interval above and has no meaning in the work.

Each basket 16 stops at each of the work positions A to D and the timing adjustment position E for a certain period of time, and then moves by one pitch to the next position. Each work position A ~
D, that is, a component receiving position A, a component cleaning position B, a component drying position C, and a component discharging position D are provided with a component receiving unit, a component cleaning unit, a component drying unit, and a component discharging unit, respectively.

First, the component receiving means provided at the component receiving position A is a component discharging mechanism of the automatic machine tool 2, for example, a component shooter 17 disposed corresponding to the discharging position of the conveyor 4 for transporting the processed component 3. , And configured to receive the processed part 3 by the basket 16 stopped at the part receiving position A via the part shooter 17. That is, in conjunction with the conveyor 4, the basket 16
To receive the processed part 3. The reception of the processed part 3 at the part receiving position A is performed by, for example, one basket 1
6 to receive one machined part 3
You can control the movement of six and one basket one
At 6, it can be controlled to receive a plurality of processed parts 3.

In the receiving mode of the processed parts 3 described above, when the movement of the basket 16 is controlled so that one basket 16 receives a plurality of processed parts 3, the subsequent part washing means and part drying means The unit time in can be extended. Therefore, it is possible to increase the cleaning and drying time without lowering the cleaning capacity.

The basket 16 which has received the processed part 3 at the part receiving position A moves to the part washing position B next.
At the component cleaning position B, a component cleaning unit is provided as one of the component cleaning units. The component cleaning unit has a cleaning liquid tank 19 for holding a cleaning liquid 18. The processed parts 3 stored in the basket 16 are immersed in the cleaning liquid 18 held in the cleaning liquid tank 19 to remove dirt such as processing oil and cutting powder adhering to the surface. Cleaning liquid 1
As 8, for example, a water-based cleaning liquid or a solvent-based cleaning liquid is used, and a cleaning liquid corresponding to dirt attached to the processed part 3 is used.

The cleaning liquid tank 19 is provided with a pump 20 as a circulation / stirring system for the cleaning liquid 18, and a pump protection upstream of the pump 20 for removing relatively coarse foreign substances such as cutting chips. A filter 21 is provided on the downstream side, and a filter 22 for removing fine particles and the like is provided on the downstream side. As a result, the cleaning liquid 18 is purified and the cleaning liquid 18 is stirred.

Further, the cleaning liquid tank 19 can be provided with a mechanical force applying means for accelerating the removal of the dirt adhering to the processed part 3 according to the type of dirt and the degree of dirt adhesion. For example, not only the above-described stirring of the cleaning liquid 18 but also various known mechanical force applying means such as providing a jet injection nozzle of the cleaning liquid 18 in the circulation system of the cleaning liquid 18 or using ultrasonic cleaning or bubbling cleaning together. can do. Further, these can be used in combination. Further, a cleaning liquid heating means or the like may be provided in order to enhance the cleaning effect of the cleaning liquid 18. On the other hand, spray cleaning of the cleaning liquid 18 or the like can be applied instead of immersion cleaning depending on the type of dirt and the degree of adhesion of dirt.

The basket 16 containing the parts 3 'cleaned at the part cleaning position B is then moved to the part drying position C. At the part drying position C, a part drying means is provided as another part cleaning means. The part drying means includes a blower 23 and a blower motor 24 which generate air for blowing the cleaned part 3 '. The blower 23 is provided with an air blowing nozzle 25. In this embodiment, four air blowing nozzles 25 are arranged so as to blow air from four directions, up, down, left, and right. Note that, instead of the blower motor 24, it is also possible to use an external air pressure source or the like.

Pressurized air is blown from these air blowing nozzles 25 to the cleaned parts 3 ', and at the same time as the liquid is drained, the cleaning liquid adhering to the cleaned parts 3' is evaporated and dried. If necessary, the air from the blower 23 can be heated to generate hot air, and the hot air can be blown on the cleaned component 3 'to improve the drying efficiency.

It should be noted that it is also possible to remove dirt only by blowing air from the blower 23 without passing through the part washing means, depending on the type of dirt adhering to the processed part 3 and the degree of dirt adhesion. That is, blower 23,
It is also possible to constitute the component cleaning means only by the gas blowing mechanism having the blower motor 24 and the air blowing nozzle 25. In addition, depending on the type of the cleaning liquid 18 or the like, it is possible to configure the component cleaning means only by a mechanism for bringing the processed component 3 into contact with the cleaning liquid 18 without providing the component drying means. That is, the component cleaning means only needs to have at least one of a mechanism for bringing the processed component 3 into contact with the cleaning liquid 18 and a gas blowing mechanism.

At the component drying position C, the cleaning liquid is evaporated and dried at the same time as the drainage, and the cleaned component 3 ″ is moved to the component discharging position D, and the component discharging provided at the component discharging position D is performed. The component is discharged out of the apparatus by the means 26. The component discharging means 26 has a movable tray 28 having a U-shaped cross section that moves along a fixed guide 27 that is inclined as shown in FIGS. The movable tray 28 can be moved between an initial position X and a component discharge position Y by a cylinder 29 or the like.

In order to discharge the cleaned parts 3 "out of the apparatus by the moving tray 28, first, when the basket 16 containing the cleaned parts 3" reaches the predetermined part discharging position D, the moving tray 28 is moved to the initial position. Move from X to component discharge position Y. Since the moving path of the tip of the movable tray 28 is set so as to contact the push plates 16b provided on both sides of the basket 16, the movable tray 28 is extended from the initial position X, which is the tray storage position, to the tray extension position. By moving to the component discharge position Y which is the direct position, the basket 16 is moved.
Is about 90 ° to 135 ° about the shaft 16a.
Rotate at an angle. With the rotation of the basket 16, the cleaned parts 3 ″ contained in the basket 16 fall into the movable tray 28, and are discharged from the apparatus along the inclination of the movable tray 28 and the fixed guide 27.

The basket 16 rotated by the movable tray 28 returns to a horizontal state by its own weight when the movable tray 28 returns to the initial position X, advances to the timing adjustment position E by the next pitch movement, and further moves to the component receiving position A. Then, the next cleaning is performed. The cleaning and discharging of the processed parts 3 accompanying the circulating movement of the baskets 16 are repeated for each basket 16.

The automatic machine tool parts washing apparatus 1 of the above-described embodiment is installed integrally with the automatic machine tool 2 and directly cleans and drys the machined parts 3 discharged from the automatic machine tool 2. The processed part 3 can be immediately cleaned (washed and dried) because it is directly received in conjunction with the automatic machine tool 2 by the basket 16 passing through. As described above, by shortening the time from the processed state of the component 3 to the cleaning, it is possible to easily remove dirt attached to the component 3.

In the automatic machine tool 2 and the automatic machine tool parts washing apparatus 1 integrated therewith, work from processing to cleaning of the parts 3 is performed, and the parts 3 ″ discharged outside the machine are cleaned. As a result, the dirt is not taken out of the apparatus, so that it is possible to prevent the dirt from scattering into the surrounding environment, and to simplify the storage management of the parts 3 ″ discharged out of the apparatus. At the same time, it is possible to purify the storage environment and the like.

Further, since there is no need to separately provide a transfer device for transferring parts between the automatic machine tool 2 and the cleaning device, the size and space of the automatic machine tool 2 including the cleaning device 1 can be reduced. Can be. In particular, as in the embodiment described above, the basket 1 attached to the chain 13
When the vertical type 6 is circulated in the vertical direction, the installation area of the automatic machine tool parts washing apparatus 1 can be further reduced, which is effective for downsizing and space saving of the apparatus. In addition, it is also possible to use a horizontal type as needed.

In addition to this, as described above, by receiving a plurality of processed parts 3 in one basket 16, the cleaning and drying time of the processed parts 3 can be extended. For example, even when the machining time is short and the ejection pitch of the machined parts 3 ejected from the automatic machine tool 2 is fast, the plurality of machined parts 3 are collectively received by one basket 16, and the actual work position, By moving to the component cleaning position B and the component drying position C, the unit time for cleaning and drying can be extended. Thereby, the washing and drying time can be increased without reducing the processing capacity.

As described above, the receiving mode of the machined part 3 can be adapted to the discharge pitch of the machined part 3 discharged from the automatic machine tool 2 without reducing the processing capacity. Depending on the case, it becomes possible to provide higher cleaning quality and to cope with worse soiling. This is a remarkable effect of the apparatus of the present invention for circulating the basket 16 for receiving the processed part 3.

Here, the automatic machine tool parts washing apparatus 1 of the above-described embodiment has a minimum necessary configuration for simple washing. The cleaning liquid 18 in the cleaning liquid tank 19 is configured to circulate through the filters 21 and 22 that remove chips and particles, but the amount of processing oil and the like brought into the cleaning liquid 18 with the cleaning gradually increases. Then, the cleaning liquid 18 is contaminated. In general, a method of removing the oil contained in the cleaning liquid 18 by removing the cleaning liquid 18 with increased oil stains by introducing a rinsing step after the cleaning, or passing the oil through an oil separator such as a coalescer is adopted.

Although the above-described configuration can be adopted also in the automatic machine tool parts cleaning apparatus of the present invention, the cleaning liquid 18 in the cleaning liquid tank 19 can be sufficiently used in the above-described embodiment. Can be within common sense use ranges, as described below.

That is, the machined part 3 is to be cleaned under the following conditions (a) to (e). (a) The amount of processing oil adhering to the surface of the processed part 3 is generally about 4 mg / cm ² . (b) It is assumed that the amount of the cleaning liquid 18 in the cleaning liquid tank 19 is 10 L. (c) The surface area of the processed part 3 is set to 10 cm ² on average. (d) The processing speed of the machined part 3 is 30s / 1 piece (2 pieces / mi
n). (e) The operating time of the equipment shall be 10H / day.

Under such conditions, 10 L of the washing solution 18
The amount of cutting oil brought in is 48 g / day (about 5
0cc / day) (= 4mg / cm ² × 10cm ² × 2pcs / min × 60min × 10
H). If 50 cc of processing oil is mixed into 10 L (10000 cc) of the cleaning liquid 18, the concentration will be 0.5%. In general, when the cleaning liquid 18 is disposable, the limit of dirt is several percent, and if it is discarded with 1% dirt, it will last for two days. 40 μg / cm ² (= 4 mg / cm ² × 0.01) of dirt oil is adhered to the surface of the part 3 pulled up from the cleaning liquid 18 of 1% dirt. If it is to be removed, the oil remaining on the surface of the part 3
40 μg / cm ² × 20% = 8 μg / cm ² , which is within 10 μg / cm ² which is the boundary value for precision cleaning.

Therefore, if the non-rinse type cleaning liquid 18 is used and the total amount of the cleaning liquid 18 is replaced, for example, once every two days, a considerably good cleaning degree can be obtained, which is about the boundary area of precision cleaning. . As described above, according to the automatic machine tool parts washing apparatus 1 of the above-described embodiment, the use of the rinsing means, the oil separator, and the like is eliminated, and the apparatus is further downsized. You can get the degree.

It should be noted that the above-described automatic machine tool parts washing apparatus 1 shows one embodiment of the present invention, and the present invention is not limited to this, and various modifications may be made within the scope of the present invention. It is possible.

[0043]

As described above, according to the apparatus for cleaning parts of an automatic machine tool according to the present invention, the machined parts discharged from the automatic machine tool are cleaned in a short time to enhance the removal of dirt. In addition to this, it is possible to prevent the dirt from scattering into the surrounding environment, and to achieve a reduction in the size and space of the device.

[Brief description of the drawings]

FIG. 1 is a view showing a state in which an automatic machine tool component washing apparatus according to an embodiment of the present invention is attached to an automatic machine tool.

FIG. 2 is a side view schematically showing the configuration of the automatic machine tool parts washing apparatus shown in FIG.

FIG. 3 is a front view schematically showing the configuration of the automatic machine tool parts washing apparatus shown in FIG.

FIG. 4 is a perspective view for explaining a component discharging means of the component washing device for an automatic machine tool shown in FIGS. 2 and 3;

FIG. 5 is a side view for explaining a component discharging unit of the automatic machine tool component cleaning device shown in FIGS. 2 and 3; It is.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Automatic machine tool parts washing apparatus 2 ... Automatic machine tool 3 ... Machined parts 3 '... Washed parts 3 "... Cleaned parts 13 ... Chain 15 ... Motor 16 ... ... Basket 17 ... Parts shooter 18 ... Cleaning liquid 19 ... Cleaning liquid tank 23 ... Blower 25 ... Air blowing nozzle 26 ... Part discharging means

Claims (5)

[Claims] 1. A component receiving means for receiving processed parts continuously discharged from an automatic machine tool in a plurality of component storage containers in conjunction with a component discharge mechanism of the automatic machine tool; Parts cleaning means for removing dirt from the received parts, parts discharging means for discharging the cleaned parts out of the apparatus, and parts receiving means, parts cleaning means and parts discharging means for storing the parts container. A component transfer unit that circulates and moves the components in the order of the installation positions, and is installed integrally with the automatic machine tool. 2. The component cleaning apparatus for an automatic machine tool according to claim 1, wherein said component cleaning means has at least one of a mechanism for bringing said component into contact with a cleaning liquid and a mechanism for blowing gas to said component. A washing machine for automatic machine tools. 3. A component receiving means for receiving processed parts continuously discharged from the automatic machine tool in a plurality of component containers in conjunction with a component discharge mechanism of the automatic machine tool; Cleaning means for cleaning the received parts; component drying means for drying the cleaned parts; component discharge means for discharging the dried parts out of the apparatus; component receiving means for the component housing container; A component transferring means for circulating and moving the cleaning means, the component drying means, and the component discharging means in the order of the respective installation positions, wherein the component is installed integrally with the automatic machine tool. Cleaning equipment. 4. The component washing apparatus for an automatic machine tool according to claim 1, wherein the plurality of components discharged from the automatic machine tool by the component receiving means are arranged in one component storage container. A part washing device for automatic machine tools, which is received at 5. The component washing device for an automatic machine tool according to claim 1, wherein the component transfer means is arranged to circulate the plurality of component storage containers in a vertical direction. Characteristic cleaning equipment for automatic machine tools.