JP2008200769A - Under-fluid rotation machining device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an under-fluid rotation machining device, in which less bad effect of fluid flow generated by rotation of a tool is given to the tool, and chips generated during machining are efficiently gathered. <P>SOLUTION: The device is provided with: a tool 1 in a circular form to rotate around the rotation axis of a tool rotation shaft 3 provided at a center of the disc for machining a workpiece existing in a fluid; and a cover 2 covering the tool 1, and comprising opening parts 12a, 12b, and 12c partly or wholly around a machining part by the tool 1, around the tool rotation shaft 3, and to the outer circumferential surface of the tool. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a submerged rotary machining apparatus that performs machining such as cutting or polishing on a workpiece by rotating a tool at high speed in a liquid such as water or oil.

  Generally, in a processing device that performs machining by rotating a tool at high speed in a liquid such as water or oil, the entire tool is covered with a cover in order to remove chips generated during machining from the machining point. It is equipped with a mechanism for injecting liquid from the outside of the cover to the machining point inside the cover, and in order to collect chips, it has a suction system that collects machining liquid containing chips from the inside of the cover. The system becomes large-scale, for example, equipped with a machining fluid filtration mechanism for removing powder. An electrical discharge machining apparatus is also available as a machining apparatus having a machining liquid injection mechanism, a recovery mechanism, and a filtration mechanism.

  As a configuration for preventing such a system from becoming excessively large, there is a configuration in which an impeller is rotated together with a tool, and a machining liquid containing chips is discharged from a cover covering the tool (Patent Documents 1 and 2). reference). However, when the tool is rotated in the liquid, a flow from the rotation center of the tool to the outer diameter direction occurs as the tool rotates, and the chips scatter in the tangential direction of the tool along the flow. Even if an impeller is placed on top, chips cannot be collected.

In addition, as in Patent Documents 1 and 2, when the entire tool is covered with a cover and chips are collected from a place other than the outer peripheral surface of the tool, a liquid flow from the processing point to the collection position is required. When the workpiece and the workpiece are brought into close contact with each other, no liquid flows from the outside into the cover, so that no liquid flow is generated and chip collection is impossible. Further, the inside of the cover is turbulent, and a large-diameter grindstone disk or the like having low rigidity of the tool itself is distorted by the liquid flow and cannot be used. When the cover and the workpiece are not in close contact with each other, chips flow out of the gap due to the water flow generated by the rotation of the tool.
Japanese Patent Publication No. 61-19387 JP 2005-297090 A

  In a processing apparatus that performs machining in a liquid as described above, when a tool such as a grindstone disk or an electric discharge machining electrode is rotated at high speed in the liquid, chips are scattered by the liquid flow generated by the rotation. It is difficult to collect chips. In addition, when trying to collect chips, the tool is covered with a cover, and a machining fluid supply mechanism, a chip collection mechanism, a filtration device, and the like are required for the cover, and the system becomes large. Further, when the tool is covered with a cover without a gap, the rotation of the tool is hindered by the liquid flow in the cover.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a submerged rotary machining apparatus that can collect the chips generated during machining efficiently with little adverse effect on the tool caused by the rotation of the tool. To do.

  In order to solve the above-described problems, the submerged rotary machining apparatus of the present invention has a disk shape and rotates a tool rotation axis provided at the center of the disk as a rotation axis to a workpiece existing in the liquid. A tool that performs machining with respect to the tool, and a cover that covers the tool and has a part that is processed by the tool, a periphery of the tool rotation shaft, and a part or all of the tool that faces the outer peripheral surface of the tool. And

  Further, the submerged rotary machining apparatus of the present invention forms a disk and rotates a tool rotation shaft provided at the center of the disk as a rotation axis to perform machining on a workpiece existing in the liquid. A tool, a cover that covers the tool and has an opening in a portion machined by the tool, a seal that shields the work piece from the entire periphery of the edge of the opening in the tool machining portion of the cover, and the tool to be machined A pipe that is attached to the cover in the vicinity of the place where it is rotated and detached from the object and flows out of the cover by a flow generated by the rotation of the tool, a filtration device that filters the liquid that has flowed out, It is set as the structure provided with piping which returns the liquid in the said cover from the vicinity of the said tool rotating shaft.

  Further, the submerged rotary machining apparatus of the present invention forms a disk and rotates a tool rotation shaft provided at the center of the disk as a rotation axis to perform machining on a workpiece existing in the liquid. A tool, a cover that covers the tool and has an opening in a machining portion of the tool, a seal that shields a work piece from the entire periphery of the edge of the opening of the machining portion of the cover, and a rotation axis of the tool A configuration including a supply device that supplies liquid into the cover from the vicinity, and a suction device that sucks liquid containing chips from the vicinity of a portion where the tool is rotated and detached from the workpiece. And

  Further, the submerged rotary machining apparatus of the present invention forms a disk and rotates a tool rotation shaft provided at the center of the disk as a rotation axis to perform machining on a workpiece existing in the liquid. A tool, a cover that covers the tool and has an opening in a portion machined by the tool, a seal that shields the work piece from the entire periphery of the edge of the opening in the tool machining portion of the cover, and the tool to be machined A supply device that supplies liquid into the cover from the vicinity of a location where it hits an object, and a suction device that sucks liquid containing chips from the vicinity of the location where the tool rotates and leaves the workpiece. The configuration is as follows.

  ADVANTAGE OF THE INVENTION According to this invention, there is little bad influence to the tool of the liquid flow which generate | occur | produces by rotation of a tool, and the submerged rotary processing apparatus which can collect efficiently the chip which generate | occur | produces in the case of a process can be provided. .

Hereinafter, nine embodiments of a submersible rotary machining apparatus according to the present invention will be described with reference to the drawings.
(First embodiment)
As shown in FIG. 1, the submerged rotary machining apparatus according to the first embodiment of the present invention forms a disk and rotates a workpiece 4 to perform machining such as cutting and polishing. 1, a cover 2 that covers the tool 1, and a tool rotating shaft 3 that rotates the tool 1. The cover 2 has openings 12 a, 12 b, and 12 c on the part where the tool 1 contacts the workpiece 4, the periphery of the tool rotation shaft 3, and part or all of the cylindrical surface covering the outer periphery of the tool 1, respectively. .

  In the submerged rotary machining apparatus of the present embodiment configured as described above, as shown in FIG. 2, the liquid 15 flows into the cover 2 from the opening 12 b around the tool rotation shaft 3, and the machining partial opening is made. The flow of flowing out of the cover 2 from the part 12a and the tool outer peripheral cylindrical surface opening 12c occurs.

  According to the present embodiment, the flow of the liquid 15 generated by the rotation of the tool 1 can be rectified as described above. Further, by rectifying, the influence of the liquid flow on the tool 1 in the cover 2 can be stabilized, and the deformation of the tool 1 due to the liquid flow can be prevented even when the tool 1 is a grindstone disk or the like having low rigidity.

(Second Embodiment)
Next, a second embodiment of the submerged rotary machining apparatus according to the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the same structure as 1st Embodiment, and the overlapping description is abbreviate | omitted. In the present embodiment, in addition to the first embodiment, a filter 5 for collecting chips generated by processing is provided in the opening 12c of the tool outer peripheral cylindrical surface of the cover 2.

  According to the present embodiment, the flow of the liquid generated by the rotation of the tool 1 is rectified, and the flow and the filter 5 are used to cut off the cutting generated by processing without providing a liquid recovery device outside. Powder can be collected.

  Three modified examples of the submerged rotary machining apparatus of the present embodiment are shown in FIGS. The first modification shown in FIG. 4 has a configuration in which the rotating shaft 3 of the thick disk-shaped tool 1 is supported by both end support portions 3a and 3b, and is suitable for a large machining apparatus. The second modification shown in FIG. 5 is configured to polish the workpiece 4 with the end surface 1 a of the tool 1. The third modification shown in FIG. 6 is a configuration in which the opening 12a of the machining portion of the cover 2 by the tool 1 and the opening 12b around the tool rotating shaft 3 are connected, and is suitable for a simple machining apparatus. These three modifications can also provide the effects of the present embodiment, such as liquid rectification and chip collection.

(Third embodiment)
Next, a third embodiment of the submerged rotary machining apparatus of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the same structure as 1st, 2nd embodiment, and the overlapping description is abbreviate | omitted. In the present embodiment, in addition to the configurations of the first and second embodiments, on the side of the edge of the tool machining portion opening 12a of the cover 2 on which the tool 1 is rotated and detached from the workpiece 4, In this configuration, a seal 6 that contacts the workpiece 4 is provided.

  In the submerged rotary machining apparatus of the present embodiment configured as described above, chips generated when the tool 1 is rotated and detached from the workpiece 4 are removed from the opening 12 a to the outside of the cover 2 by the seal 6. It becomes possible to stay in the cover 2 without taking out, and the collection rate of chips by the filter 5 can be improved.

A modification of the present embodiment is shown in FIG. In this modification, a seal 6 that contacts the workpiece 4 is provided on the entire periphery of the edge of the tool machining part opening 12 a of the cover 2.
In the submerged rotary machining apparatus configured as described above, in addition to the chips generated when the tool 1 is rotated and detached from the workpiece 4, the chips swung together with the tool 1 are replaced with the seal 6. Thus, it is possible to keep the inside of the cover 2 without coming out of the cover 2 from the opening 12a, and the collection rate of chips by the filter 5 can be further improved.

(Fourth embodiment)
Next, a fourth embodiment of the submerged rotary machining apparatus according to the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the same structure as 1st-3rd embodiment, and the overlapping description is abbreviate | omitted. In this embodiment, in the second and third embodiments, part or all of the filter 5 is externally attached to the outside of the cover 2 and a bag-like filter 16 is provided.

  According to this embodiment, it is possible to increase the surface area of the filter by providing the bag-like filter 16 externally attached to the cover 2, reduce the pressure loss due to the filter, and the pressure loss due to the filter gives the liquid flow. By reducing the influence, the collection rate of chips by the filter can be improved.

(Fifth embodiment)
Next, a fifth embodiment of the submerged rotary machining apparatus according to the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the same structure as the 1st-4th embodiment, and the overlapping description is abbreviate | omitted. In this embodiment, chips are applied to the outer peripheral surface of the cover 2 near the portion where the tool 1 is rotated and detached from the workpiece 4 through the suction pipe 20 in the configuration of the first to fourth embodiments. It is the structure which provided the suction device 7 which attracts | sucks the contained gas and liquid.

  In the submerged rotary machining apparatus of the present embodiment, chips can be collected not only by the filter 5 provided on the outer peripheral surface of the cover 2 but also by the suction device 7. Moreover, even if there is no opening in the tool outer peripheral cylindrical surface of the cover 2, it becomes possible to collect the chips. Therefore, it becomes possible to increase the upper limit of the amount of chips collected and increase the operating time of the submerged rotary processing apparatus.

(Sixth embodiment)
Next, a sixth embodiment of the present invention will be described with reference to FIG. The submerged rotary machining apparatus according to the present embodiment includes a tool 1 that rotates in a disk shape, a cover 2 that is opened only by a machining portion by the tool 1, a tool rotating shaft 3 that rotates the tool 1, and a cover 2 A tool 6 is connected to the outer peripheral surface of the tool 1 of the cover 2 in the vicinity of the seal 6 that contacts the workpiece 4 around the entire periphery of the opening edge of the tool processing portion and the workpiece 1 and rotates away from the workpiece 4. A pipe 8a for guiding the liquid to the outside of the cover 2 by a flow generated by the rotation of the tool 1, a filtration device 9 for filtering the liquid containing chips, and the filtered liquid from the vicinity of the tool rotation shaft 3 into the cover 2 It is composed of a return pipe 8b.

  According to the present embodiment, since the liquid outside the cover 2 and the liquid inside the cover 2 can be prevented from being mixed, it is possible to prevent the chips from flowing out of the cover 2 and to increase the collection rate of the chips. Is possible. Further, since only the liquid flow generated by the rotation of the tool 1 is used, there is no need to provide a liquid recovery mechanism and a supply mechanism.

(Seventh embodiment)
Next, a seventh embodiment of the present invention will be described with reference to FIG. The submerged rotary machining apparatus according to the present embodiment includes a tool 1 that rotates in a disk shape, a cover 2 that is opened only by a machining portion by the tool 1, a tool rotating shaft 3 that rotates the tool 1, and a cover 2 Chip 6 connected to the outer peripheral surface of the tool 1 of the cover 2 near the part where the tool 1 is rotated and detached from the work 4 and the seal 6 that contacts the work 4 on the entire periphery of the edge of the opening of the processed part by the tool 1 The suction device 7 that sucks the liquid containing the liquid through the suction pipe 20 and the supply device 10 that supplies and injects the liquid from the periphery of the tool rotating shaft 3 into the cover 2 through the liquid supply pipe 21. .

  According to the present embodiment, since the liquid in the cover 2 is supplied from the supply device 10 and sucked by the suction device 7, it is possible to prevent the liquid outside the cover 2 and the liquid inside the cover 2 from being mixed. Can be prevented from flowing out of the cover 2, and the collection rate of chips can be increased.

(Eighth embodiment)
Next, an eighth embodiment of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the same structure as the said 7th Embodiment, and the overlapping description is abbreviate | omitted. The submerged rotary machining apparatus according to the present embodiment is opposite to the cover 2 that opens not only the machining portion by the tool 1 but also the periphery of the tool rotation shaft 3 and the side on which the tool 1 is rotated away from the workpiece 4. And a supply device 10 for supplying and injecting liquid into the cover 2 from the side.

  In the submerged rotary machining apparatus of the present embodiment configured as described above, the flow of liquid flowing into the cover 2 from the opening 12b around the tool rotation shaft 3 of the cover 2 and the cover 2 from the supply apparatus 10 A liquid flow is formed which flows through and into the suction device 7.

  According to the present embodiment, the capacity of the supply device 10 can be reduced by using the flow of the liquid flowing into the cover 2 from the opening 12b of the cover 2 near the tool rotation axis 3. In addition to the flow generated by the rotation of the tool 1, the collection rate of chips can be increased by using the flow of liquid flowing from the supply device 10 to the suction device 7.

(Ninth embodiment)
Next, a ninth embodiment of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the same structure as 1st-8th embodiment, and the overlapping description is abbreviate | omitted. In addition to the configurations of the first to eighth embodiments, the submerged rotary machining apparatus of the present embodiment rotates with the tool 1 and rotates to rotate the impeller that sucks liquid from the cover opening 12b around the tool rotation shaft 3 11. By the rotation of the impeller 11, the liquid flows into the cover 2 from the opening 12 b around the tool rotation shaft 3 of the cover 2.

  According to the present embodiment, the amount of fluid taken into the cover 2 can be increased, and thereby a large amount of liquid can be applied to the processing portion to suppress heat generation. Moreover, it becomes possible to let many liquids pass through the filter 5 etc., and the collection rate of chips can be increased. In addition, the capacity of the supply device 10 can be reduced.

The structure of the submerged rotary processing apparatus of the 1st Embodiment of this invention is shown, (a) is a top view, (b) is sectional drawing which follows the bb line of (a). The effect | action of the submerged rotary processing apparatus of the 1st Embodiment of this invention is shown, (a) is a top view, (b) is sectional drawing which follows the bb line of (a). The structure of the submerged rotary processing apparatus of the 2nd Embodiment of this invention is shown, (a) is a top view, (b) is sectional drawing which follows the bb line of (a). The structure of the submerged rotary processing apparatus of the 1st modification of the 2nd Embodiment of this invention is shown, (a) is a top view, (b) is sectional drawing which follows the bb line of (a). The partially notched side view which shows the structure of the submerged rotary processing apparatus of the 2nd modification of the 2nd Embodiment of this invention. The top view which shows the structure of the submerged rotary processing apparatus of the 3rd modification of the 2nd Embodiment of this invention. The top view which shows the structure of the submerged rotary processing apparatus of the 3rd Embodiment of this invention. The top view which shows the structure of the submerged rotary processing apparatus of the modification of the 3rd Embodiment of this invention. The top view which shows the structure of the submerged rotary processing apparatus of the 4th Embodiment of this invention. The top view which shows the structure of the submerged rotary processing apparatus of the 5th Embodiment of this invention. The top view which shows the structure of the submerged rotary processing apparatus of the 6th Embodiment of this invention. The top view which shows the structure of the submerged rotary processing apparatus of the 7th Embodiment of this invention. The top view which shows the structure of the submerged rotary processing apparatus of the 8th Embodiment of this invention. The structure of the submerged rotary processing apparatus of the 9th Embodiment of this invention is shown, (a) is a top view, (b) is sectional drawing which follows the bb line of (a).

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Tool, 1a ... End surface, 2 ... Cover, 3 ... Tool rotating shaft, 3a, 3b ... Support part, 4 ... Workpiece, 5 ... Filter, 6 ... Seal, 7 ... Suction device, 8a, 8b ... Piping, DESCRIPTION OF SYMBOLS 9 ... Filtration apparatus, 10 ... Supply apparatus, 11 ... Impeller, 12a, 12b, 12c ... Opening part, 15 ... Liquid, 16 ... Filter, 20 ... Suction piping, 21 ... Liquid supply piping

Claims (10)

  A tool that has a disk shape and rotates with a tool rotation axis provided at the center of the disk as a rotation axis to perform machining on a workpiece that exists in the liquid, and covers the tool and machining with the tool A submerged rotary machining apparatus comprising: a portion, a periphery of the tool rotation shaft, and a cover having an opening in a part or all of the tool facing the outer peripheral surface of the tool.   2. The submersible rotary machining apparatus according to claim 1, further comprising a filter that collects chips generated by machining in all or a part of the opening of the cover facing the outer peripheral surface of the tool. .   3. The seal according to claim 1, further comprising a seal that shields the tool from the workpiece on the side where the tool on the edge of the tool machining portion opening of the cover is rotated away from the workpiece. Submerged rotating machine.   3. The submerged rotary machining apparatus according to claim 1, further comprising a seal that shields a gap between the cover and the workpiece on the entire periphery of the edge of the tool machining portion opening of the cover.   The in-liquid rotary machining apparatus according to claim 1, wherein a bag-like filter is attached to the outside of the cover.   2. The suction device according to claim 1, further comprising a suction device connected to the cover in the vicinity of a place where the tool is rotated and detached from the workpiece, and sucks a liquid containing chips out of the cover. Submerged rotating machine.   A tool that forms a disk and rotates with a tool rotation axis provided at the center of the disk as a rotation axis to perform machining on a workpiece existing in the liquid, and a part that is covered with the tool and processed by the tool A cover that has an opening in the cover, a seal that shields the work piece from the work piece at the entire periphery of the edge of the tool machining portion of the cover, and the cover in the vicinity of the place where the tool is rotated away from the work piece A pipe that is attached to the pipe and flows out of the cover by a flow generated by the rotation of the tool, a filtration device that filters the flowed out liquid, and the filtered liquid from the vicinity of the tool rotation shaft. A submerged rotary processing apparatus comprising a pipe that is returned to the inside.   A tool that forms a disk and rotates with a tool rotation axis provided at the center of the disk as a rotation axis to perform machining on a workpiece existing in the liquid, and a part that is covered with the tool and processed by the tool A cover that has an opening in the cover, a seal that shields the work piece from the entire periphery of the edge of the opening in the tool machining portion of the cover, and a supply that supplies liquid into the cover from the vicinity of the tool rotation axis An in-liquid rotary processing apparatus comprising: an apparatus; and a suction device that sucks a liquid containing chips from the vicinity of a portion where the tool is rotated and detached from the workpiece.   A tool that forms a disk and rotates with a tool rotation axis provided at the center of the disk as a rotation axis to perform machining on a workpiece existing in the liquid, and a part that is covered with the tool and processed by the tool A cover that has an opening in the cover, a seal that shields the work piece from the entire periphery of the edge of the opening of the machined portion of the cover, and a liquid that enters the cover from the vicinity of the location where the tool hits the work piece. And a suction device for sucking a liquid containing chips from the vicinity of a portion where the tool is rotated and detached from the workpiece. apparatus. The impeller for sucking liquid from the opening of the cover around the tool rotation shaft by rotation is attached to the tool rotation shaft in the cover. The submerged rotary processing apparatus according to any one of the above.

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