JP2019107747A - Processing device and method for storage of brush-shaped tool in processing device - Google Patents

Abstract

To make it possible to store brush hairs in a good state when storing a brush-shaped tool into a stocker of a tool magazine.SOLUTION: A method for storage of a brush-shaped tool in a processing device according to which a tool magazine comprising a stocker, which can store a brush-shaped tool in which plural brush hairs are provided at a tip of a shank, is located, the brush-shaped tool is moved downward toward a the stocker by an auto tool changer mechanism, and the brush-shaped tool is stored at a predetermined storage position in the stocker. The brush-shaped tool is rotated at a preset slow rotational speed, and in such a state, the brush-shaped tool is moved downward toward the storage position and is stored.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a processing apparatus and a method of storing a brush-shaped tool in the processing apparatus. More particularly, the present invention relates to a processing apparatus provided with an automatic tool changer mechanism for automatically changing a tool attached to a spindle, and a method of storing a brush-shaped tool in the processing apparatus.

  Conventionally, based on a processing program such as NC data (NC program) having a plurality of processing steps by numerical control with a microcomputer etc., it is isolated from the outside by a tool such as an end mill provided with a cutting edge at the tip of the shank. There is known a processing apparatus for cutting a workpiece in three dimensions in a processing space, which is a closed space, to produce a three-dimensional object of a desired shape from the workpiece.

  In such a processing apparatus, for example, a spindle to which a shank of a tool is attached and a table on which a workpiece is placed are in any direction of the X axis direction, the Y axis direction and the Z axis direction in the XYZ orthogonal coordinate system. The relative positional relationship between the cutting edge of the tool and the workpiece placed on the table is arbitrarily changed in three dimensions by relatively moving or the like.

  Then, according to each processing step of the processing program, by moving the spindle and the table while bringing the cutting edge of the tool rotated by the spindle into contact with the workpiece, the cutting edge of the tool cuts the workpiece into a desired shape Process to produce a three-dimensional structure.

  In addition, in such a processing apparatus, it is general to use a plurality of tools provided with a cutting edge having a shape corresponding to each application such as roughing or finishing, as a tool, and the plurality of tools are stored respectively A tool magazine in which a plurality of stockers are formed as a tool storage recess is disposed in the processing space of the processing apparatus.

  Then, under control of the microcomputer, the processing device returns the tool for roughing or finishing, in which the proximal end of the shank is held by the chuck of the spindle, back to the stocker of the tool magazine and holds it from the chuck of the spindle. The spindle was selected by removing the existing tool and selecting one of the other tools stored in the tool magazine's stocker, and gripping the proximal end of the selected tool's shank onto the chuck of the spindle. It has a mechanism that automatically performs the process of detachably holding the tool.

  Such a mechanism is a conventionally known technique disclosed in, for example, JP-A-9-314435, JP-A 2002-345844 or JP-A-2015-62974, and is widely used as an auto tool changer mechanism. Generally known.

  Therefore, since a conventionally well-known technique can be applied to such an auto tool changer mechanism, the detailed description of its configuration and operation is appropriately omitted.

  Here, in the processing apparatus provided with the above-described auto tool changer mechanism, when a workpiece is cut by a tool, small holes in the workpiece or tool magazine in which cutting powder is disposed in the processing space are present. It was supposed to get in.

  Such cutting powder that has entered the small holes present in the workpiece and the tool magazine has caused a reduction in the accuracy of cutting with a tool and a defect in the process of replacing a tool by an auto tool changer mechanism.

  For this reason, in a processing apparatus provided with a conventional auto tool changer mechanism, a tool for cutting a workpiece such as a rough cutting tool or a finishing tool (this specification and the claims). "A tool for cutting a workpiece" is appropriately referred to as a "tool for cutting". A brush hair for removing cutting powder generated by cutting with a tool for cutting (In the present specification and claims, “tool with brush bristles for removing cutting powder generated by cutting with a cutting tool” may be referred to as “brush-shaped tool” ) Was stored in the stock magazine of the tool magazine.

  Here, FIG. 1 is a perspective view showing an example of the brush-shaped tool. The brush-shaped tool 100 shown in FIG. 1 includes a large number of bristles 104 disposed at the tip 102 a of the shank 102. Each brush hair 104 is disposed to extend along the central axis O direction of the shank 102.

  When the chuck of the spindle grips the proximal end 102b of the shank 102 of the brush-shaped tool 100, the length of the shank 102 gripped by the chuck is adjusted to position the chuck positioning member relative to the shank 102 Tool holder. The tool holder 106 is removably attached to the shank 102.

  Then, when performing a cleaning operation to remove cutting powder generated by cutting with the cutting tool, the chuck of the spindle grips the proximal end portion 102b of the shank 102 of the brush shaped tool 100 by the auto tool changer mechanism. Then, by rotating the brush shape tool 100 by a spindle at a preset rotational speed (for example, 5000 to 6000 rotations per second), cleaning is performed to remove cutting powder by rotation of the brush hairs 104 of the brush shape tool 100 I was working.

  Here, the state of the tips 104a of the brush hairs 104 of the brush shaped tool 100 does not spread in the outer diameter direction of the shank 102 when the brush shaped tool 100 is new, but the above cleaning by the brush shaped tool 100 As the work is performed, it gradually spreads in the outer diameter direction of the shank 102 due to the aged deterioration.

  On the other hand, in the conventional processing apparatus, the brush shape tool 100 stored in the stocker of the tool magazine is held by the chuck of the spindle by the auto changer mechanism, or the brush shape tool 100 held by the chuck of the spindle is the tool As in the case of the cutting tool, the process of returning and storing it in the stocker of the magazine has been performed by simply moving the spindle in the vertical direction.

  That is, as shown in FIG. 2, when the brush shape tool 100 held by the chuck 302 of the spindle 300 is returned to the stocker 202 of the tool magazine 200 and stored, the operation of simply moving the spindle 300 downward is I was going.

  Therefore, when the bristles 104a of the brush-shaped tool 100 are not spread, the brush-shaped tool 100 held by the chuck 302 of the spindle 300 is returned to the stocker 202 of the tool magazine 200 and stored. As shown in FIGS. 3 (a) and 3 (b), when the brush shape tool 100 moves downward and enters the stocker 202 (refer to FIG. 3 (a)), The brush-shaped tool 100 can be stored in the stocker 202 without sticking to the stocker 202, the upper surface portion 200a of the tool magazine 200, or the like (see FIG. 3B).

  However, when the bristles 104 a of the brush shaped tool 100 are spread, when the brush shaped tool 100 held by the chuck 302 of the spindle 300 is returned to the stocker 202 of the tool magazine 200 and stored, As shown in FIGS. 4A and 4B, when the brush shape tool 100 moves downward and enters the stocker 202, the tips 104a of the bristles 104 are the top opening 202a of the stocker 202 and the tool magazine. There is a problem that the brush-shaped tool 100 can not be stored in the stocker 202 of the tool magazine 200 in a good state because it is caught on the upper surface portion 200a of 200 (see FIG. 4A). (Refer FIG.4 (b).).

  That is, when the tip 104a of the brush bristles 104 is caught on the upper end opening 202a of the stocker 202 or the upper surface 200a of the tool magazine 200, the brush shaped tool 100 is moved downward and stored in the stocker 202. The brush shape tool 100 is pushed into the stocker 202 in a state where the tips 104a of the brush bristles 104 are caught on the upper end opening 202a of the stocker 202, the upper surface portion 200a of the tool magazine 200, etc. It is to bring about the problem of further expanding (see FIG. 4 (b)).

JP-A-9-314435 JP, 2002-345844, A JP, 2015-62974, A

  The present invention has been made in view of the above-described problems of the prior art, and the object of the present invention is to provide a brush-shaped tool for storing the brush-shaped tool in a stocker of a tool magazine. It is an object of the present invention to provide a processing apparatus and a storage method of a brush-shaped tool in the processing apparatus, which can store brush bristles in a good state.

  In order to achieve the above object, according to the present invention, when storing the brush shape tool in the stocker of the tool magazine, the brush shape tool is stored while being rotated.

  Therefore, according to the present invention, when the brush shape tool is stored in the stocker of the tool magazine, a twist in the rotational direction is applied to the bristles of the brush shape tool so that the bristles of the brush shape tool are wound up. And can be stored in the stocker while preventing the spreading of the bristles of the brush shape tool.

  That is, according to the present invention, the brush shape tool can be stored in a good condition in the stocker of the tool magazine without expanding the bristles of the brush shape tool.

  That is, the processing apparatus according to the present invention arranges a tool magazine provided with a stocker capable of storing a brush-shaped tool in which a large number of brush hairs are arranged at the tip of a shank, and arranges the above-mentioned brush-shaped tool A processing apparatus which moves downward toward a stocker to store the brush shape tool in a preset storage position in the stocker, and rotates the brush shape tool at a preset slow rotational speed. A rotation control means, and a lowering control means for moving downward to the storage position and storing the brush shape tool while rotating the brush shape tool at the slow rotational speed are included.

  In the processing apparatus according to the present invention, a tool magazine provided with a stocker capable of storing a brush-shaped tool having a large number of brush hairs disposed at the tip of the shank is disposed, and the brush-shaped tool is operated by the auto tool changer mechanism. A processing apparatus which moves downward toward the stocker to store the brush-shaped tool in a preset storage position in the stocker, and moves the brush-shaped tool downward toward the storage position. Set in advance when the lowering control means to be stored and the tip of the brush shaped tool moved downward by the lowering control means are moved to the contact position where they will be in contact with the stocker with a preset margin Control means for rotating the brush shape tool by a preset number of rotations at the determined slow rotation speed It is obtained by way.

  A processing apparatus according to the present invention is the processing apparatus according to the present invention as described above, wherein the number of rotations is one or more.

  In the processing apparatus according to the present invention, in the processing apparatus according to the present invention described above, the slow rotational speed is set to 1 to 2 rotations per second.

  Further, in the method of storing the brush-shaped tool in the processing apparatus according to the present invention, a tool magazine provided with a stocker capable of storing a brush-shaped tool in which a large number of brush hairs are arranged is disposed at the tip of the shank. A method of storing the brush-shaped tool in the processing apparatus for moving the brush-shaped tool downward to the stocker by the auto tool changer mechanism and storing the brush-shaped tool in a preset storage position in the stocker. The brush shape tool is rotated at the determined slow rotation speed, and the brush shape tool is moved downward to the storage position and stored while being rotated at the slow rotation speed. .

  Further, in the method of storing the brush-shaped tool in the processing apparatus according to the present invention, a tool magazine provided with a stocker capable of storing a brush-shaped tool in which a large number of brush hairs are arranged is disposed at the tip of the shank. A method of storing a brush-shaped tool in a processing apparatus, wherein the brush-shaped tool is moved downward toward the stocker by an auto tool changer mechanism, and the brush-shaped tool is stored in a preset storage position in the stocker. When the shape tool is moved downward to the storage position and stored, when the tip of the brush shape tool is moved to the contact position where it is in contact with the stocker with a preset margin, The brush shape tool is rotated by a preset number of rotations at a preset slow rotation speed Those were Unishi.

  Further, in the method of storing the brush-shaped tool in the processing apparatus according to the present invention, in the storage method of the brush-shaped tool in the processing apparatus according to the present invention described above, the number of rotations is one or more.

  Further, in the method of storing the brush-shaped tool in the processing apparatus according to the present invention, in the storage method of the brush-shaped tool in the processing apparatus according to the present invention described above, the slow rotational speed is 1 to 2 rotations per second. It is.

  Since the present invention is configured as described above, when storing the brush shape tool in the stocker of the tool magazine, the brush hairs of the brush shape tool can be stored in a good state. It plays an excellent effect.

FIG. 1 is a perspective view showing an example of a brush shape tool. FIG. 2 is an explanatory view showing an operation when the brush shape tool is stored in the stocker of the tool magazine by the auto-changer mechanism in the conventional processing apparatus. FIGS. 3 (a) and 3 (b) are explanatory views showing an operation when the brush shape tool in a state in which the bristles of the brush hairs are not spread by the conventional processing device is stored in the stocker of the tool magazine. 3 (a) and 3 (b) schematically show a part of a cross section taken along the line AA in FIG. FIGS. 4 (a) and 4 (b) are explanatory views showing an operation when the brush shape tool in a state in which the bristles of the brush hairs are spread by the conventional processing device is stored in the stocker of the tool magazine. 4A and 4B schematically show a part of a cross section taken along the line A-A of FIG. FIG. 5 is a perspective view schematically showing the processing apparatus according to an example of the embodiment of the present invention. FIG. 6 is a block diagram showing a functional configuration of a microcomputer related to the implementation of the present invention. FIG. 7 is a flow chart showing the processing routine of the brush shape tool storage process executed by the microcomputer in connection with the implementation of the present invention. FIG. 8 is an explanatory view showing an operation at the time of storing the brush shape tool in a state in which the bristles of the brush hairs are spread by the processing device according to the present invention in the stocker of the tool magazine. In addition, FIG. 8 is corresponded to what showed typically a part of the cross section by the AA of FIG. FIGS. 9 (a) and 9 (b) are explanatory views schematically showing an operation at the time of storing the brush shape tool in a state in which the bristles of the brush hairs are spread by the processing device according to the present invention in the stocker of the tool magazine. FIG. 9 (a) is an explanatory view showing the positional relationship between the tips of the bristles of the brush-shaped tool and the upper end opening of the stocker. Moreover, FIG.9 (b) is operation | movement explanatory drawing which shows typically B arrow view of Fig.9 (a). FIG. 10 is a flowchart showing another processing routine of the brush shape tool storage processing executed by the microcomputer in connection with the implementation of the present invention.

  Hereinafter, with reference to the accompanying drawings, an example of an embodiment of a processing apparatus and a method for storing a brush-shaped tool in the processing apparatus according to the present invention will be described in detail.

  In the following description of the embodiment, the same reference numerals are used to indicate the same or corresponding components as the components described in the "Background Art" section above, and thereby the description of the overlapping components and functions. It shall be omitted as appropriate.

(I) Description of Overall Configuration of Processing Apparatus 10 According to the Present Invention FIG. 5 shows a perspective view schematically showing the processing apparatus according to an example of the embodiment of the present invention.

  The entire operation of the processing apparatus 10 is controlled by the microcomputer 60, and the processing of the workpiece 70 is performed based on a processing program.

  In addition, the material of the to-be-processed object 70 is not specifically limited, For example, there exist resin materials, such as a zirconia and a transparent acrylic board used when producing a denture, and other various materials.

  The processing apparatus 10 includes a base member 12 of a fixed system, side members 14L and 14R erected perpendicular to the base member 12 at both left and right ends of the base member 12, and a base member 12 at the rear end of the base member 12. While erecting at right angles, the rear member 16 connecting the two left and right side members 14L and 14R is provided, and a processing space S for cutting the workpiece 70 is formed by these.

  The processing space S is separable from the outside by a cover member 50 disposed openably and closably, and the workpiece 70 can be processed in the processing space S shielded from the outside.

  Guide rails 18 are supported at their both ends by the side members 14L and 14R, respectively, and are extended in the X-axis direction in the XYZ orthogonal coordinate system.

  The support member 20 is slidably mounted on the guide rail 18 and supported movably in the X-axis direction.

  A head 22 is disposed on the support member 20 so as to be movable in the Z-axis direction. The head 22 has various cutting tools 101 or brush-shaped tools 100 provided with cutting edges shaped at the tip of the shank according to the application such as roughing and finishing, etc., freely rotatable around the Z axis. A spindle 300 for gripping is provided.

  A holder 26 is disposed on the base member 12 for rotatably holding the workpiece 70 about the X axis and the Y axis. In addition, since the holder 26 can use a conventionally well-known apparatus, description of the detailed structure and effect | action is abbreviate | omitted.

  Reference numeral 28 denotes a motor serving as a driving source for rotating the cutting tool 101 or the brush-shaped tool 100 gripped by the spindle 300 around the Z axis. Note that various driving sources such as a motor serving as a drive source for moving the support member 20 supporting the head 22 in the X-axis direction and a motor serving as a drive source for moving the head 22 supported on the support member 20 in the Z-axis direction Illustration of is omitted.

  Since the spindle 300 is movable in the X-axis direction and the Z-axis direction via the head 22, the spindle 300 and the cutting tool 101 or the brush-shaped tool 100 gripped by the spindle 300 are in the head 22 in the Z-axis direction. While moving, it moves in the X axis direction through the head 22.

  Therefore, in the processing apparatus 10, the workpiece 70 held rotatably around the X axis and the Y axis by the holder 26 and the spindle 300 that moves in the X axis direction and the Z axis direction have their positional relationship It is possible to change in three dimensions relatively.

  In the processing apparatus 10, the microcomputer 60 controls the drive of each drive source including the motor 28 in accordance with each processing step of the processing program so that the cutting edge of the cutting tool 101 rotated by the spindle 300 is a workpiece The position of the workpiece 70 held by the carriage 22 and the holder 26 is moved while being in contact with the surface 70, and the workpiece 70 is cut into a desired shape by the cutting edge of the cutting tool 101 to perform three-dimensional shaping Make things.

  Further, in the processing apparatus 10, the microcomputer 60 controls the driving of each drive source including the motor 28 in accordance with each processing step of the processing program, thereby the brush hairs 104 of the brush shaped tool 100 rotated by the spindle 300. The position of the workpiece 70 held by the carriage 22 and the holder 26 is moved while being in contact with the workpiece 70 or the tool magazine 20, and the workpiece 70 or the tool magazine 20 is moved by the brush hairs 104 of the brush shape tool 100. Perform cleaning work to remove cutting powder deposited on the

  Here, although the tool holder 106 is provided in the brush-shaped tool 100, as shown in FIGS. 3 (a) and (b), FIGS. 4 (a) and (b), and FIG. When the shape tool 100 is accommodated in the stocker 202 of the tool magazine 200, the lower surface 106 a abuts on the upper end opening 202 a of the stocker 202. Thus, the brush shape tool 100 is prevented from falling into the stocker 202 of the tool magazine 200, and the tool holder 106 also functions as a fall prevention stopper.

  The side member 14R is provided with a metal tool magazine 200 that accommodates the cutting tool 101 and the brush-shaped tool 100.

  In the processing apparatus 10 according to the present embodiment, the cutting tool 101 or the brush-shaped tool 100 gripped by the spindle 300 can be disposed on the stocker 202 of the tool magazine 200 from the upper side.

  As the tool magazine 200 can be used a conventionally known one, a detailed description of its configuration and operation will be omitted.

  The processing apparatus 10 is provided with an automatic tool changer mechanism that is conventionally known, and returns the cutting tool 101 or the brush-shaped tool 100 held by the chuck 302 of the spindle 300 to the stocker 202 of the tool magazine 200 to Any of the other cutting tools 101 or brush-shaped tool 100 stored in the stocker 202 of the tool magazine 200 while removing the cutting tool 101 or the brush-shaped tool 100 gripped from the chuck 302 of 300. By holding the selected cutting tool 101 or the brush-shaped tool 100 on the chuck 302 of the spindle 300, the selected cutting tool 101 or the brush-shaped tool 100 can be grasped on the spindle 300. Automatically performs the processing to be.

  In addition, as a process for selecting a desired cutting tool 101 or brush-shaped tool 100 from time to time from the stocker 202 of the tool magazine 200, various methods have been conventionally proposed, and such conventionally known ones should be used. Therefore, the detailed description of the configuration and the operation is omitted.

(II) Description of Functional Configuration of Microcomputer 60 Related to the Implementation of the Present Invention FIG. 6 is a block diagram showing the functional configuration of the microcomputer 60 related to the implementation of the present invention.

  The microcomputer 60 is constructed to have a brush shape tool rotation control unit 62 and a brush shape tool lowering control unit 64 as functional configurations related to the implementation of the present invention.

  The brush shape tool rotation control unit 62 controls the motor 28 serving as a driving source for rotating the brush shape tool 100 about the Z axis to control the rotational speed of the brush shape tool 100 held by the spindle 300.

  The brush-shaped tool lowering control unit 64 controls a drive source that moves the head 22 in the Z-axis direction, and controls the movement of the brush-shaped tool 100 downward in the Z-axis direction of the brush-shaped tool 100 held by the spindle 300 Do.

  The brush shape tool lowering control unit 64 controls the downward movement of the brush shape tool 100 from the lowering start position to the storage position via the contact position, in connection with the practice of the present invention. That is, the brush shape tool lowering control unit 64 starts the downward movement of the brush shape tool 100 at the lowering start position, and when the brush shape tool 100 reaches the storage position via the contact position, the brush shape tool 100 Stop moving down.

  When moving the brush shape tool 100 from the descent start position to the storage position, the positional relationship between the brush shape tool 100 and the stocker 202 of the tool magazine 200 at the descent start position and the length of the brush hairs 104 of the brush shape tool 100 The distance by which the brush shape tool lowering control unit 64 lowers the brush shape tool 100 may be set in advance based on the dimensions of each configuration including the height.

  Here, in the present specification and claims, the above-mentioned “lowering start position” means that the cleaning operation for removing cutting powder by the brush shape tool 100 held on the spindle 300 is completed, and the spindle 300 is used. This means the upper position of the held brush shape tool 100 when it is moved to the upper position of the stocker 202 set in advance in the tool magazine 200 (refer to “dropping start position” in FIG. 8).

  Further, in the present specification and claims, the “contact position” mentioned above means that the tip 104 a of the brush bristles 104 of the brush shaped tool 100 held on the spindle 300 is the upper end opening 202 a of the stocker 202. It means a position where the touch state is established with a preset margin (margin) (refer to “touch position” in FIG. 8).

  Further, in the present specification and claims, the “storage position” described above refers to the case where the brush shaped tool 100 held on the spindle 300 is stored in the stocker 202 and held in the tool magazine 200 in advance. It means the set position (refer to "stored position" in FIG. 8).

  As shown in FIG. 8, the contact position is located below the lowering start position, and the storage position is located below the contact position.

(III) Description of the Operation of the Processing Device 10 According to the Present Invention In the above configuration, the operation of the processing device 10 according to the present invention will be described with reference to the flowchart shown in FIG. FIG. 7 shows a flowchart showing a processing routine of the brush shape tool storage processing executed by the microcomputer in connection with the implementation of the present invention.

  In the processing apparatus 10, when the cleaning operation for removing cutting powder by the brush shape tool 100 held by the spindle 300 is finished, and the brush shape tool 100 held by the spindle 300 moves to the preset descent start position, The processing routine of the brush shape tool storage processing shown in FIG. 7 is activated and executed, and the step of lowering the brush shape tool 100 by the auto tool changer mechanism and storing it in the stocker 202 of the tool magazine 200 is performed.

  When the processing routine for the brush shape tool storage process is started, the brush shape tool rotation control unit 62 controls the brush shape tool 100 held on the spindle 300 to a preset slow rotational speed (for example, 1 to 2 rotations per second). The rotation operation is started at a certain rotation speed) (step S702).

  When the process of step S702 is completed, the process proceeds to step S704, and the brush shape tool held by the spindle 300 is controlled by controlling the drive source for moving the head 22 in the Z axis direction under control of the brush shape tool lowering control unit 64. An operation of moving 100 downward from the lowering start position in the Z-axis direction is started.

  Then, when the brush shape tool lowering control unit 64 moves the brush shape tool 100 to the storage position set in advance, the brush shape tool 100 stops moving downward, and the brush shape tool rotation control unit 62 The rotation of the brush shape tool 100 is stopped (step S706).

  That is, the processing apparatus 10 continues the lowering of the brush shape tool 100 in the state of continuing the rotation, and stops the rotation at the storage position.

(IV) Description of the operation and effect of the processing apparatus 10 according to the present invention When the brush shape tool 100 described above moves from the descent start position to the storage position, the tip 104a of the brush shape tool 100 passes through the contact position. become.
That is, according to the processing apparatus 10, as shown in FIG. 8, in the returning operation of the brush shaped tool 100 to the stocker 202 by the auto tool changer mechanism, the brush shaped tool 100 is downward while being slowly rotated by the spindle 300. At the contact position, the tip 104a of the brush bristles 104 enters the stocker 202 from the upper end opening 202a, and then moves further downward to be lowered to the storage position and stored in the stocker 202.

  That is, in the returning operation of the brush shape tool 100 to the stocker 202 by the auto tool changer mechanism, the tip 104 a of the brush hair 104 is the upper end of the stocker 202 simply by lowering the brush shape tool 100 as in the conventional processing apparatus. After contacting the opening 202a, it has to be bent upward (see FIG. 4B).

  However, in the processing apparatus 10, since the brush hairs 104 are rotating (refer to the rotation in the direction of arrow C in (b-1) in FIGS. 9A and 9B), the brush hairs 104. A twist in the rotational direction is added at a position where the hair tip 104a of the upper contact portion 202a of the stocker 202 is in contact with the upper end opening 202a of the stocker 202 (the contact position and its vicinity) (see (b-2) The brush bristles 104 whose tips 104a are in contact with the upper end opening 202a of the stocker 202 operate to be wound around the central axis O of the shank 102, and the brushes whose tips 104a are in contact with the upper end opening 202a of the stocker 202 The hair 104 does not bend upward.

  That is, although the brush hairs 104 whose hair tips 104a are in contact with the upper end opening 202a of the stocker 202 are stopped rotating at the time of the contact, the entire brush shape tool 100 is slowly rotating, so the hair tips 104a become stocker The bristles 104 in contact with the upper end opening 202 a 202 are twisted and wound toward the central axis O of the shank 102.

  As described above, according to the processing apparatus 10, when the brush shaped tool 100 is stored in the stocker 202 of the tool magazine 200, a twist in the rotational direction is applied to the brush hairs 104 of the brush shaped tool 100 to The bristles 104 of the shape tool 100 can be wound up, and can be stored in the stocker 202 while preventing the tips 104 a of the bristles 104 of the brush shape tool 100 from spreading.

  Therefore, according to the processing apparatus 10, the brush shape tool 100 can be stored in the stocker 202 of the tool magazine 200 in a good state without expanding the tips 104a of the brush hairs 104 of the brush shape tool 100. It will be.

(V) Description of Other Embodiments and Modifications The above-described embodiment is merely an example, and the present invention can be practiced in other various forms. That is, the present invention is not limited to the above-described embodiment, and various omissions, replacements, and changes can be made without departing from the scope of the present invention.

  For example, the above-described embodiment may be modified as shown in the following (1) to (7).

  (1) In the above-described embodiment, as the processing routine of the brush shape tool storage process, an example in which the brush shape tool 100 is lowered while being rotated is described, but of course the present invention is not limited thereto.

  A flowchart showing another processing routine of the brush shape tool storage processing executed by the microcomputer 60 in connection with the implementation of the present invention is shown in FIG.

  In the following description of the flowchart of FIG. 10, processing steps that are the same as or correspond to the processing steps of the flowchart shown in FIG. 7 described above are indicated using the same step numbers, and redundant descriptions are appropriately omitted. It shall be.

  In the processing routine shown in the flowchart of FIG. 10, the brush shape tool lowering control unit 64 starts moving the brush shape tool 100 downward without rotating the brush shape tool 100 (step S704).

  Then, when the brush shape tool 100 is moved to the contact position set in advance by the brush shape tool lowering control unit 64, the brush shape tool 100 held on the spindle 300 is controlled in advance by the control of the brush shape tool rotation control unit 62. The rotation is stopped after rotating by a preset rotation number (for example, one rotation) at a set slow rotation speed (for example, a rotation speed of about 1 to 2 rotations per second).

  Thereafter, when the brush shape tool 100 is moved to the storage position set in advance, the brush shape tool lowering control unit 64 stops the downward movement of the brush shape tool 100.

  Therefore, also according to the processing routine shown in the flowchart of FIG. 10, since the bristles 104 are rotating at the contact position (rotation of the arrow C direction in (b-1) of FIG. 9A and FIG. (See (b) in FIG. 9 (b)) (see (b) in FIG. 9) (b) (see (b) of FIG. 9). 2), the bristles 104 with their tips 104a in contact with the upper end opening 202a of the stocker 202 operate so as to be wound around the central axis O of the shank 102, and the tips 104a of the stocker 202 The bristles 104 in contact with the upper end opening 202a do not bend upward.

  Then, according to the processing routine shown in the flowchart of FIG. 10, the driving time of the motor 28 serving as a driving source for rotating the brush shape tool 100 around the Z axis can be shortened.

  (2) In the modification shown in (1) described above, the brush shape tool 100 is rotated at a contact position at a preset slow rotational speed and then the rotation is stopped after the rotational speed is preset. However, of course, it is not limited to this. That is, the brush shape tool 100 may be continuously lowered while the rotation is continued, and the rotation may be stopped at the storage position or a position immediately before the storage position.

  (3) In the above embodiment, although the brush shape tool 100 having the shape shown in FIG. 1 has been described as the brush shape tool, it is a matter of course that the shape of the brush shape tool is not limited to this. The invention can be applied to brush-shaped tools of various shapes known in the prior art.

  (4) In the above-described embodiment, a sensor (detection means) for detecting the position of the tips 104a of the brush hairs 104 of the brush shape tool 100 is provided to monitor the detection result of the sensor (detection means). The position (contact position and storage position) in the Z-axis direction of the brush-shaped tool 100 held by the spindle 300 may be determined.

  (5) In the embodiment described above, although the rotation speed of about 1 to 2 rotations per second is exemplified as the preset slow rotation speed, it is a matter of course that the slow rotation speed is not limited to this. . That is, the slow rotation speed may be a rotation speed of less than one rotation per second or a rotation speed of more than two rotations per second.

  (6) In the modification shown in the above (1), one rotation is exemplified as the preset rotation number, but it is a matter of course that the rotation number is not limited to this. That is, as long as the number of rotations is at least one, the number of rotations exceeding one (for example, 1.5 or 2) may be rotated.

  (7) It goes without saying that the above-described embodiment and the various modifications shown in the above (1) to (6) may be combined as appropriate.

  The present invention can be applied to a processing apparatus for cutting a work while replacing a tool stored in a tool magazine by an auto tool changer mechanism.

  DESCRIPTION OF SYMBOLS 10 processing apparatus, 12 base members, 14L side members, 14R side members, 16 rear members, 18 guide rails, 20 support members, 22 heads, 26 holders, 28 motors, 50 cover members, 60 microcomputers, 62 brush shapes Tool rotation control unit (rotation control means), 64 brush shape tool lowering control unit (fall control means), 70 workpiece, 100 brush shape tool, 102 shank, 102a tip, 102b base end, 104 brush hair, 104a Hair, 106 tool holder, 106a lower surface, 101 cutting tool, 200 tool magazine, 200a upper surface, 202 stocker, 202a upper opening, 300 spindle, 302 chuck, O shank central axis, S processing space

Claims (8)

A tool magazine provided with a stocker capable of storing a brush shaped tool provided with a large number of brush hairs is disposed at the tip of the shank, and the brush shaped tool is moved downward toward the stocker by an auto tool changer mechanism. A processing apparatus for storing the brush shape tool at a preset storage position in the stocker,
Rotation control means for rotating the brush shape tool at a preset slow rotation speed;
And d) lowering control means for moving the brush shape tool downward at the slow rotational speed and moving it downward to the storage position. A tool magazine provided with a stocker capable of storing a brush shaped tool provided with a large number of brush hairs is disposed at the tip of the shank, and the brush shaped tool is moved downward toward the stocker by an auto tool changer mechanism. A processing apparatus for storing the brush shape tool at a preset storage position in the stocker,
Lowering control means for moving the brush shape tool downward to the storage position and storing it;
When the tip of the brush-shaped tool moved downward by the lowering control means is moved to the contact position where it comes in contact with the stocker with a preset margin, the preset slow rotational speed And a rotation control unit configured to rotate the brush shape tool by a preset number of rotations. In the processing apparatus according to claim 2,
The processing device is characterized in that the number of rotations is one or more. The processing apparatus according to any one of claims 1, 2 or 3.
The processing apparatus characterized in that the slow rotational speed is 1 to 2 rotations per second. A tool magazine provided with a stocker capable of storing a brush shaped tool provided with a large number of brush hairs is disposed at the tip of the shank, and the brush shaped tool is moved downward toward the stocker by an auto tool changer mechanism. A method of storing a brush shape tool in a processing device for storing the brush shape tool to a preset storage position in the stocker,
Rotating the brush shape tool at a preset slow rotational speed,
A method of storing a brush-shaped tool in a processing apparatus, wherein the brush-shaped tool is rotated at the slow rotational speed and moved downward to the storage position to be stored. A tool magazine provided with a stocker capable of storing a brush shaped tool provided with a large number of brush hairs is disposed at the tip of the shank, and the brush shaped tool is moved downward toward the stocker by an auto tool changer mechanism. A method of storing a brush shape tool in a processing device for storing the brush shape tool to a preset storage position in the stocker,
When the brush shape tool is moved downward to the storage position and stored,
When the tip of the brush-shaped tool is moved to the contact position where it will be in contact with the stocker with a preset margin, the brush shape for a preset number of rotations at a preset slow rotational speed A method of storing a brush-shaped tool in a processing apparatus characterized by rotating a tool. In the method of storing a brush-shaped tool in the processing apparatus according to claim 6,
The method of storing a brush-shaped tool in a processing apparatus, wherein the number of rotations is one or more. A method of storing a brush shape tool in a processing apparatus according to any one of claims 5, 6 or 7.
The method for storing a brush-shaped tool in a processing apparatus, wherein the slow rotation speed is 1 to 2 rotations per second.

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