JP4028993B2 - Cleaning tool - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides a mounting portion at the tip of the main shaft so that the mounting portion of the tool can be mounted, and removably attaches the connecting portion of the tool to the mounting hole, and rotates or drives the tool to perform cutting or drilling. The cleaning tool used in a machine tool that can be used for any machining operation such as, in particular, cleans the front end surface formed at the tip of the main shaft so as to support the rear surface of the flange of the tool. The present invention relates to a cleaning tool that can be used.
[0002]
[Prior art]
FIGS. 1 to 5 show embodiments of the present invention. In these figures, configurations denoted by reference numerals 1 to 13 are those conventionally known (for example, see Japanese Patent Laid-Open No. 5-337769). ). Therefore, a conventional example will be described with reference to FIG.
In FIG. 3, 1-4 show the structure of a known machine tool, 1 is a frame, 2 is a main shaft that is rotatable with respect to the frame 1, 3 is a tapered hole provided at the front end of the main shaft, Reference numeral 4 denotes a pull tool.
Next, 5 shows a tool provided with a mounting portion for the main shaft 2. Reference numeral 6 denotes a main body portion of the tool. Reference numeral 7 denotes a cutting blade for cutting a workpiece (which may be a drill blade) that is replaceably attached to the cutting blade insertion portion 6a provided at the front end portion of the main body portion 6. For example, around the front end portion A plurality of, for example, three cutting edges are provided. Reference numeral 8 denotes a handle portion provided at the rear end portion of the main body portion 6, for example, a shank portion as a well-known attachment portion. The outer peripheral surface of the handle portion is provided to be removably attached to the tapered hole 3. A hole, for example, a tapered surface 8a corresponding to the tapered hole 3 is formed.
[0003]
Reference numeral 9 denotes a pull stud attached to the rear end of the main body 5 by screwing means for drawing the shank 8 using the pulling tool 4. Reference numeral 10 denotes a flange provided on the outer periphery of the main body 6, which is a portion to be held by a holding portion of a known tool changer, and has a groove 11 for fitting a holding tool on the outer peripheral surface. Reference numeral 13 denotes a fluid supply path used when generally used fluid such as compressed air, cooling liquid (water, oil) or the like is supplied from a supply device (not shown).
The tool 5 is configured such that the rear surface 10a of the flange portion 10 and the front end surface 2a of the main shaft 2 can be in close contact with each other so that there is no gap. Alternatively, it is configured so that a gap is formed, and a hard vibration isolator is interposed in advance, and the vibration of the flange 10 is supported by the front end surface 2a of the main shaft 2 by virtue of the vibration of the flange 10. The cutting blade 7 for cutting is prevented from vibrating. As is well known, a fitting portion is formed on a part of the outer peripheral surface of the flange portion 10 so that a driving piece on the machine tool side is fitted.
[0004]
When using the thing of the said structure, the shank part 8 is inserted in the taper hole 3, and the pull stud 9 is drawn in by the pull tool 4. FIG. The pulling force is, for example, about 700 kg to 2 t. The shank portion 8 is fitted into the taper hole 3 by pulling in as described above.
The rear surface 10a of the flange portion 10 and the front end surface 2a of the main shaft 2 are also in close contact. As is well known, when the vibration isolator is present in contact with the front end surface 2a of the main shaft 2, it is compressed between its front end surface and the rear surface 10a of the collar portion 10 and its rigidity is increased. Thus, the front end face 2a and the rear face 10a are indirectly closely integrated.
[0005]
When the main shaft 2 is rotated in the mounting state as described above, the tool 5 is integrally rotated, and the workpiece is cut by the cutting blade 7 (in the case of FIG. By moving relative to the direction of arrow 12). In the case of this cutting process, even if a large force is applied to the tool 5 in the direction of bending the spindle 5 due to the cutting force applied to the cutting edge 7, the gap between the front end face 2a of the spindle and the rear face 10a of the flange portion 10 is increased. Since the vibration isolator 15 is in direct contact or has a high rigidity as described above, it exhibits a large resistance to the bending force as described above. As a result, the bend is prevented and vibration of the tool 5 accompanying the bend is prevented. As a result, the workpiece can be subjected to good cutting with high accuracy.
[0006]
[Problems to be solved by the invention]
In this conventional apparatus, when the tool 5 is rotated by the rotation of the spindle 2 and the workpiece is cut by the cutting edge 7, a large force for bending the tool 5 with respect to the spindle 2 with a large cutting resistance. Is added, the rigidity between the front end surface 2a of the main shaft 2 and the rear surface 10a of the flange portion 10 is increased, and the above-mentioned bending force can be resisted with a large strength. As a result, there is an advantage that a clean cut surface can be obtained by preventing the vibration of the tool 5 due to the force to bend.
However, if dust such as chips adheres to the front end surface 2a of the spindle 2, the periphery of the tool 5 cannot be supported evenly, and the high binding force of the tool 5 by the spindle 2 is reduced. There is a problem that it becomes impossible to prevent the vibration of the tool 5 due to the force to bend, and high quality cutting with high accuracy becomes impossible.
In order to solve this problem, it is conceivable to remove the tool 5 and clean the spindle front end surface 2a. However, if this is done manually by an operator, the tool 5 may be accidentally cut into the tapered hole 3. There is a risk that dust and other dust may be scattered and cause a larger problem.
[0007]
The object of the present application is to receive the front end formed at the front end of the main shaft so that the rear surface of the flange portion of the tool can be supported in a state where the shank portion of the tool is mounted in the mounting hole provided at the front end portion of the main shaft. An object of the present invention is to provide a cleaning tool capable of cleaning a surface.
Another object is to provide a cleaning tool that allows fluid to flow from the inside to the outside when cleaning the receiving surface formed at the tip of the main shaft.
[ 0008 ]
Another object is that the flow path that allows fluid to flow out toward the gap formed on the rear surface of the cleaning tool in a state where the shank portion of the cleaning tool is mounted to the mounting hole provided at the tip of the main shaft has a gap. Even in the case where a large number of close passages are provided, the total amount of fluid from the fluid passage is small by distributing the fluid in order from the main fluid passage to the many flow paths. It is an object of the present invention to provide a cleaning tool that can selectively supply a satisfactory amount of fluid to a large number of flow paths.
Other objects and advantages will be readily apparent from the drawings and the following description associated therewith.
[ 0009 ]
[Means for Solving the Problems]
The cleaning tool according to the present invention has a shank portion that can be detachably attached to a mounting hole provided at the tip portion of the main shaft, and a shank portion that is attached to the mounting hole provided at the tip portion of the main shaft. In the state, a cleaning tool comprising a projecting member formed to face the front end surface for supporting the rear surface of the buttocks of the tool formed at the front end of the main shaft with a slight gap therebetween,
In the cleaning tool, a plurality of fluids in an inner fluid passage are caused to flow out toward the gap formed in a state where the shank portion is mounted to a mounting hole provided at the tip of the main shaft. In a state where the flow path is provided, and the cleaning tool is relatively rotatable with respect to the main body of the cleaning tool, and the main shaft and the shank part are rotated integrally. A rotating body formed with a weight capable of obtaining inertia that rotates at a different rotational speed is provided, a fluid passage for receiving fluid is provided inside the rotating body, and the rotating body is provided with the rotating body. Is a number smaller than the number of the above-mentioned flow passages that selectively communicates the internal fluid passage and the inner openings of the plurality of flow passages by rotating relative to the main body portion. Set up a relay route The front end surface formed at the tip of the main shaft is washed with the fluid flowing in the outer peripheral direction from the flow path by allowing the fluid to flow out from the fluid passage inside the tool toward the gap formed in the periphery. It is.
[ 0010 ]
Preferably, in a state in which the shank portion that can be detachably attached to the attachment hole provided in the tip end portion of the main shaft, and the shank portion attached to the attachment hole provided in the tip end portion of the main shaft, A cleaning tool comprising a projecting member formed to face the front end surface for supporting the rear surface of the buttock of the tool formed at the front end of the main shaft with a slight gap therebetween,
In the cleaning tool, a plurality of fluids in an inner fluid passage are caused to flow out toward the gap formed in a state where the shank portion is mounted to a mounting hole provided at the tip of the main shaft. A flow path is provided, and relative rotation with respect to the main body of the cleaning tool can be freely performed inside the cleaning tool, but in a state where the main shaft and the shank part are rotated integrally. A rotating body linked to the outside is provided so as not to rotate, and a fluid passage for receiving fluid is provided inside the rotating body. The rotating body rotates relative to the main body. Accordingly, the number of relay passages smaller than the number of the flow paths is provided so that the internal fluid passages and the inner openings of the plurality of flow paths are selectively communicated sequentially, and the fluid passages inside the cleaning tool are provided. From above to be formed around By discharging the fluid towards the gap, a front end surface formed at the tip of the spindle as long as it was to clean the fluid flowing in the outer circumferential direction from the flow path.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, drawings showing embodiments of the present invention will be described. In the description of FIG. 1 to FIG. 5, the functions, properties, features, etc. of the components, members, etc. using the same reference numerals as those in FIG. 3 are matters relating to the description of the new member configurations, combinations, etc. added below. Except for the above, it can be understood that the above description is the same as the above description, and a part of the overlapping description is omitted.
[0012]
A main body 16 of the cleaning tool 15 of FIG. 1 is attached to and detached from a mounting portion provided at the distal end portion 2b of the main shaft 2, for example, the tapered hole 3 or the like, in place of the shank portion 8 as an attachment handle portion in the tool 5. A shank portion 8 is provided as an attachment handle portion that can be freely mounted.
The tool 5 is formed on the front end 2a of the main shaft 2 in a state in which the shank portion 8 is mounted on the main body 16 of the cleaning tool 15 with respect to the tapered hole 3 provided in the distal end portion 2b of the main shaft 2. The protruding member 10 is formed so as to face the front end surface 2a for supporting the rear surface 10a of the collar portion with a slight gap 17 therebetween. The projecting member 10 has the same configuration as the flange portion 10 of the tool 5. Since the main body 16, the shank portion 8 and the like of the cleaning tool 15 are different from the tool 5 in that they do not require strength, they may be made of any material such as metal or nonmetal similar to the tool 5.
[0013]
Arbitrary fluid supplied from a supply device (not shown) is supplied to the inside of the cleaning tool 15 from an arbitrary place, for example, through fluid supply paths 13 and 13a provided along the center line 14 at the tip 2b of the main shaft 2. A hollow fluid passage 20 is provided for receiving. The hollow portion serving as the fluid passage 20 is useful for reducing the weight of the entire cleaning tool 15, and is the same as in the case of FIG. 3, but the shank portion 8 is bent by largely cutting the corner portion 20a toward the main body 16 side. Has the function of softening and softening.
As shown in FIG. 5, a fluid such as compressed air, a cooling liquid (water, oil), or the like may be supplied to the fluid passage 20 from the front end side. Further, around the fluid passage 20, the fluid is allowed to flow out toward the gap 17 formed in a state where the shank portion 8 is attached to the tapered hole 3 provided at the tip portion 2 b of the main shaft 2. A large number of passages 21 are formed radially. Although six flow paths 21 are provided in the radial direction in FIG. 1, the number of gaps between them may be reduced by doubling them, or the flow paths 21 may be halved. When the number of the flow paths 21 is reduced, a space generated between the jet outlets of the respective flow paths 21 is increased, and a portion that is not easily washed is generated. A diffusion convex member (a deflecting member) may be provided so as to diffuse the fluid ejected vigorously in the radial direction from the outlet of each flow path 21 toward the rear surface 10a in the circumferential direction.
[0014]
The cleaning tool 15 configured as described above is attached to the spindle 2 in exchange for the tool 5 in the same manner as when the tool 5 is inserted. As is well known, this replacement work is performed by gripping and replacing the groove 11 for fitting the gripper on the outer peripheral surface by the gripping portion of the tool changer, so that the front end surface 2a formed at the front end of the main shaft 2 temporarily has chips and the like. There is no fear that they will adhere to the inner surface of the taper hole 3 even if they are attached. After mounting the cleaning tool 15, the fluid is supplied from the fluid supply path 13 inside the main shaft 2 toward the fluid passage 20, and the above-described nozzles 21 a of the respective flow paths 21 formed around the fluid passage 20 are used as described above. By allowing the fluid to flow toward the gap 17, the front end surface 2a formed at the tip of the main shaft 2 can be cleaned with the fluid flowing from the flow path 21 through the gap 17 in the outer circumferential direction. At the time of the cleaning, the main shaft 2 may be in a stationary state. However, when the main shaft 2 is gently rotated, the fluid ejected vigorously from the outlets of the respective flow paths 21 in the radial direction is The front end surface 2a of the main shaft 2 is efficiently and evenly cleaned by flowing and diffusing relatively in the circumferential direction.
[0015]
Next, FIG. 2 which shows an example different from the cleaning tool 15 of FIG. 1 in that it can be used as a tool in use will be described. In this figure, the same reference numerals are used for the components, functions, properties, features, and the like that can be understood to be the same as the descriptions in FIGS. Therefore, although it seems that the point which can be combined with the tool has already been understood from the display of the drawings, the cleaning tool 15 shown in the drawing is not dedicated to independent cleaning, and is not limited to independent cleaning, but is generally known as an arbitrary one. configuration cleaning function that has been subjected to the cleaning device 15 of FIG. 1 with respect to the tool 5 by, for example, a fluid passage 20 for receiving fluid from the fluid supply passage 13 to the interior of the tool 5, the shank portion 8 of the spindle A large number of radiating fluids are provided so that fluid flows out toward the gap 17 formed on the rear surface of the flange portion 10 corresponding to the annular projecting member 10 in a state of being attached to the tapered hole 3 provided at the distal end portion. The structure which added the flow path 21 was provided.
[0016]
According to the configuration as shown in the figure, the tool 5 is inserted into the spindle 2 and cutting is performed as is generally known. In that case, a fluid is supplied from the fluid supply passage 13 inside the main shaft 2 toward the fluid passage 20 simultaneously with the cutting processing or immediately after the completion of the cutting processing, and a plurality of each formed around the fluid passage 20. The fluid flows out from the outlet of the flow channel 21 toward the gap 17, so that the front end surface 2 a formed at the tip of the main shaft 2 flows on the front end surface 2 a from the flow channel 21 toward the outer periphery in the outer circumferential direction. Can be washed. When such a cleaning tool 15 / tool 5 is used, the front end surface 2a is cleaned immediately after the completion of the cutting process or in a very short time after the completion of the cutting process. Replacing the surface-constrained type blade holder 5 with the next machining operation, that is, a close contact between the rear surface 10a of the flange 10 of the tool 5 and the front end surface 2a of the main shaft 2 so that there is no gap, is precise. You can start metal working.
[0017]
Next, FIG. 4 showing an example different from the cleaning tool 15 of FIG. 1 in the configuration of supplying and distributing the cleaning fluid will be described.
In FIG. 4, parts that are considered to have the same or equivalent configuration as those in FIGS. 1 and 3 have the same reference numerals as those in FIGS. A duplicate description is omitted. (Also, in the next figure, the alphabet f is sequentially added to those in FIGS.
[0018]
The illustrated cleaning tool 15e includes a main body portion 16e, a shank portion 8e, a pull stud 9e, an overhang member 10e, a groove 11e, a fluid passage 20e, and a flow path 21e, similarly to the cleaning tool shown in FIG. However, a hollow cylindrical rotating body 25 is provided in the main body portion 16e. The hollow portion 26 in the rotary body 25 is closed at the tip end side with an arbitrary lid 28 and serves as a fluid passage leading to the fluid supply passage 13e. Further, the rotating body 25 is rotatably supported by the main body portion 16e via a bearing bearing 27 that can be expected to be lightly rotated, and is relatively rotatable. The rotating body 25 inside the cleaning tool rotates at a different number of rotations at the initial stage of rotation, midway or at the end of the rotation in a state where the main shaft 2e and the shank portion are rotated together. It is formed of a material having a large specific gravity and a weight so that inertia can be obtained. Therefore, even when the main shaft 2e and the shank portion 8e are slowly rotated together, the rotating body 25 rotates slightly later than that, and rotates at a lower rotational speed. In addition, a cylindrical metal inertial body 28 having a relatively large weight is attached to one end of the rotating body 25 through a connecting member 28 such as a bolt so as to be detachable as necessary to enhance the flywheel effect. You can keep it. In addition, if the cylindrical metal inertial body 28 is formed in an eccentric state, even if the main shaft 2e and the shank portion 8e are gently rotated together, the eccentrical inertial body 28 swings and swings together. It can be prevented from rotating.
[0019]
The rotating body 25 is provided with one or a plurality of relay paths 23 in the radial direction, and when the rotating body 25 relatively rotates relative to the main body portion 16e, or in the main body portion 16e. On the other hand, when the rotating body 25 does not rotate, the outer end of the relay path 23 faces the opening of the inner end of the flow path 21 of the main body 16e in the course of the rotation of the main body 16e, and both openings Correspond to each other, and the fluid inside the hollow portion 26 selectively passes through one or a plurality of relay passages 23 one after another, that is, selectively supplies fluid one after another to the plurality of flow paths 21e. The fluid is sequentially ejected sequentially toward the gap 17e between the rear surface 10ae and the front surface 2ae, and the gaps 17 are successively washed in the rotational direction one after another.
[0020]
According to the configuration as described above, when the shank portion 8e is mounted on the main shaft 2e and the main shaft 2e and the shank portion 8e are gently rotated together as described in FIGS. Since the inertia is large, the relative rotation is performed slowly with a slight delay. Then, as is clear from FIG. 4B, if a large number of flow paths 21e on the main body 6e side rotate clockwise, the relay path 23 of the rotating body 25 rotates relatively counterclockwise. become.
[0021]
As described above, this means that the total amount of fluid supplied from one or a plurality of rotating bodies 25 (a smaller number than the number of the flow paths 21e) to the many flow paths 21e is small. However, there is an effect that a sufficient amount of fluid can be selectively supplied to each of the large number of flow paths 21e. Therefore, even if the supply of fluid from the fluid supply path 13e is small, the receiving surface 2ae facing the annular gap 17e over the wide range can be sequentially cleaned with a small amount of fluid. In the above case, the case where the main shaft 2e and the shank portion 8e are slowly rotated together has been described. However, even when the shaft 2e and the shank portion 8e are rotated together and then stopped, the rotating body 25 is also stopped. Since the rotation continues due to inertia, the same cleaning effect can be obtained if the fluid supply is continued.
[0022]
Next, FIG. 5 which shows an example different from the cleaning tool 15 of FIG. 1 in the configuration of supplying and distributing the cleaning fluid will be described.
The illustrated cleaning tool 15f includes a main body portion 16f, a shank portion 8f, a pull stud 9f, an overhang member 10f, a groove 11f, a fluid passage 20f, and a flow path 21f, similarly to the cleaning tool shown in FIGS. In addition, inside the main body portion 16f, a hollow fluid supply member 30 having a function common to the hollow cylindrical rotating body 25e is provided. The hollow portion 26f inside the fluid supply member 30 is closed at the front end side with an arbitrary lid 28f, and serves as a fluid passage that leads to the fluid supply passages 13f, 33, and 34. Further, the fluid supply member 30 is rotatably supported by the main body portion 16f via a bearing 27f. Reference numerals 31, 32, and 35 are known mechanisms for restraining the fluid supply member 30 from rotating even when the shaft 2f and the shank portion 8f are rotated together (for example, Japanese Patent Laid-Open No. 63-169249). (Refer to Japanese Patent Laid-Open No. 63-245305), 31 is a member in which the lower end is detachably fixed to the tip of the fluid supply member 30 in the drawing, and a connecting member 32 is attached to the upper end in the drawing. The connecting member is shown mounted and mounted so as to be able to move in and out toward the receiving member 35 at all times and in a biased state. Reference numeral 35 denotes a receiving member fixed to the frame 1f. The receiving member 35 includes a fluid supply path 13f connected to a fluid supply device (not shown). And a concave fitting portion for receiving. The connecting member 32 and the connecting member 31 are formed with fluid supply paths 33 and 34 for communicating with the fluid supply path 13f, respectively.
[0023]
Therefore, when cleaning the end surface 2af of the main shaft, the tool 5 used for the cutting process is extracted in the axial direction 14f of the main shaft 2f, and the groove 11f for fitting the gripping tool of the cleaning tool 15f shown in FIG. It is gripped by the gripping portion of the tool changer, inserted into the tapered hole 3f with the shank portion 8f at the top, the tip of the connecting member 32 is fitted into the recess of the receiving member 35, and pulled and attached by the pulling tool 4f. . When mounted in this manner, the fluid supply path 13f communicates with the fluid supply paths 33 and 34, and the fluid is supplied from the fluid supply path 13f into the fluid passage 26f of the fluid supply member 30, and from there, as in FIG. The end face 2af of the main shaft is cleaned by jetting into the gap 17f through the relay path 23f and the flow path 21f having the above configuration.
[0024]
In the configuration as described above, as described with reference to FIGS. 1, 2, and 4, when the shank portion 8e is attached to the main shaft 2e and these are gently rotated together,
Since the fluid supply member 30 is fixed to the frame 1 through the connecting member 31, the connecting member 32, and the receiving member 35, the fluid supply member 30 is in a non-rotatable state, and as a result, the fluid is supplied to the main portion 16f by the rotation of the main portion 16f. The member 30 rotates relatively.
Then, as is apparent from FIG. 4B, if a large number of flow paths 21f on the main body 16f side rotate clockwise, the relay path 23f of the fluid supply member 30 rotates relatively counterclockwise. It will be.
[0025]
As described in the embodiment of FIG. 4 described above, this configuration is performed from one or a plurality of fluid supply members 30 (a smaller number than the number of flow paths 21f) to a large number of flow paths 21f. Even if the total amount of fluid supplied is small, there is an effect that the fluid can be selectively supplied as a sufficient amount to each of the large number of flow paths 21f. Therefore, even if the amount of fluid supplied from the fluid supply path 13f is small, the receiving surface 2af facing the annular gap 17f over the wide range can be sequentially cleaned with a small amount of fluid.
[0026]
【The invention's effect】
As described above, the present invention cleans the front end surface formed at the tip of the main shaft with the fluid flowing in the outer peripheral direction from the flow path by allowing the fluid to flow out from the fluid passage inside the cleaning tool toward the gap formed in the periphery. Therefore, when cleaning the receiving surface formed at the tip of the main shaft, the dust such as chips adhering to the front end surface 2a of the main shaft 2 is not taken into the inside, but is directed outward. Has the effect of washing away.
[ 0027 ]
Furthermore, in the present invention, a plurality of fluids in the inner fluid passage are allowed to flow out toward a gap formed in a state where the shank portion is attached to the tapered hole provided at the tip portion of the main shaft. In the state in which the flow path is provided and the cleaning tool is relatively rotatable with respect to the main body of the cleaning tool, and the main shaft and the shank part are rotated together. Is provided with a rotating body formed with a weight that allows inertia to rotate at different rotational speeds, and provided with a fluid passage for receiving fluid inside the rotating body. The number of relays is smaller than the number of the flow paths so that the internal fluid passage and the inner openings of the plurality of flow paths are selectively communicated sequentially by rotating relative to the main body. Has a road been established? , Even with a small supply amount of the fluid from the fluid supply passage 13, there is excellent effect washed can have supporting surfaces 2a opposed to the annular gap 17 over a wide range of the above with a small amount of fluid.
[Brief description of the drawings]
FIG. 1A is a partially broken view showing a state in which a cleaning tool is attached to a main spindle of a machine tool (the lower half of the center line is not shown), and FIG. 1B is a cross-sectional view taken along line AA in FIG. Sectional drawing.
FIG. 2 is a partially cutaway view showing a state in which a tool having a cleaning function is attached to the spindle of the machine tool (the lower half of the center line is not shown).
FIG. 3 is a partially cutaway view showing a state in which a tool is attached to the spindle of the machine tool (the lower half of the center line is not shown).
4A is a partially broken view showing a state in which a cleaning tool showing a different example is attached to the main spindle of the machine tool (the lower half of the center line is not shown), and FIG. 4B is a view of FIG. FIG.
FIG. 5 is a partially cutaway view showing a state where a cleaning tool showing a further different example is attached to the spindle of the machine tool (the lower half of the center line is not shown).
[Explanation of symbols]
2 ... spindle, 3 ... taper hole, 4 ... pulling tool, 5 ... tool, 6 ... main body, 7 ... cutting blade, 8 ... shank, 10, ...・ Saddle part, 12 ... arrow, 13 ... fluid supply path, 15 ... cleaning tool, 16 ... main body part, 20 ... fluid passage, 21 ... flow path, 23 ... Relay path, 25 ... rotating body, 26 ... fluid passage, 27 ... bearing, 28 ... inertial body, 29 ... connecting member, 30 ... fluid supply member.

Claims (2)

A shank portion that can be detachably attached to a mounting hole provided at the tip of the main shaft;
In a state where the shank portion is mounted to the mounting hole provided at the tip end portion of the main shaft, it faces the front end surface for supporting the rear surface of the flange portion of the tool formed at the front end of the main shaft with a slight gap. A cleaning tool comprising an overhang member formed to
In the cleaning tool, a plurality of fluids in an inner fluid passage are caused to flow out toward the gap formed in a state where the shank portion is mounted to a mounting hole provided at the tip of the main shaft. In a state where the flow path is provided, and the cleaning tool is relatively rotatable with respect to the main body of the cleaning tool, and the main shaft and the shank part are rotated integrally. A rotating body formed with a weight capable of obtaining inertia that rotates at a different rotational speed is provided, a fluid passage for receiving fluid is provided inside the rotating body, and the rotating body is provided with the rotating body. Is a number smaller than the number of the above-mentioned flow passages that selectively communicates the internal fluid passage and the inner openings of the plurality of flow passages by rotating relative to the main body portion. Set up a relay route The front end surface formed at the tip of the main shaft is washed with the fluid flowing in the outer peripheral direction from the flow path by allowing the fluid to flow out from the fluid passage inside the tool toward the gap formed in the periphery. A cleaning tool characterized by that. A shank portion that can be detachably attached to a mounting hole provided at the tip of the main shaft;
In a state where the shank portion is mounted to the mounting hole provided at the tip end portion of the main shaft, it faces the front end surface for supporting the rear surface of the flange portion of the tool formed at the front end of the main shaft with a slight gap. A cleaning tool comprising an overhang member formed to
In the cleaning tool, a plurality of fluids in an inner fluid passage are caused to flow out toward the gap formed in a state where the shank portion is mounted to a mounting hole provided at the tip of the main shaft. A flow path is provided, and relative rotation with respect to the main body of the cleaning tool can be freely performed inside the cleaning tool, but in a state where the main shaft and the shank part are rotated integrally. A rotating body linked to the outside is provided so as not to rotate, and a fluid passage for receiving fluid is provided inside the rotating body. The rotating body rotates relative to the main body. Accordingly, the number of relay passages smaller than the number of the flow paths is provided so that the internal fluid passages and the inner openings of the plurality of flow paths are selectively communicated sequentially, and the fluid passages inside the cleaning tool are provided. From above to be formed around Of by discharging the fluid toward the gap, the cleaning device, characterized in that the front end surface formed at the tip of the spindle are to be cleaned by the fluid flowing in the outer circumferential direction from the flow path.

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