Cutting machine

Abstract

To provide a cutting machine which eliminates a need for an operator to attach a fan manually.SOLUTION: A cutting machine 100 includes a rotating body 54, a fan 63, a cutting movement mechanism, and a fan holder 88. The rotating body 54 includes: a processing tool 8 which processes a workpiece 5; and a spindle 55 which rotates while holding the processing tool 8 directly or indirectly. The fan 63 is detachably provided at the rotating body 54 and blows air to the processing tool 8 and the workpiece 5 in conjunction with rotation of the rotating body 54. The cutting movement mechanism moves the rotating body 54. The fan holder 88 moves the rotating body 54 with the cutting movement mechanism to attach / detach the fan 63 to / from the rotating body 54.SELECTED DRAWING: Figure 18

Description

[Technical Field]

[0001] The present invention relates to a cutting machine. [Background technology]

[0002] Conventionally, there has been known a cutting machine that cuts a workpiece by rotating a rod-shaped processing tool around an axis, as disclosed in Patent Document 1. The cutting machine disclosed in Patent Document 1 includes a rotating spindle and a tool holder attached to the spindle. The processing tool is held at the tip of the tool holder.

[0003] In a cutting machine, cutting powder is generated when a workpiece is cut with a machining tool. Therefore, to remove the generated cutting powder, air is sometimes blown toward the workpiece and the machining tool during cutting. For example, Patent Document 1 discloses a fan that can be attached to the outer periphery of a tool holder and blows air toward the workpiece and the machining tool. When the spindle is rotated with the tool holder equipped with this fan attached to it, air can be blown toward the workpiece and the machining tool by the fan while the workpiece is being cut with the machining tool. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-89206 Summary of the Invention [Problem to be solved by the invention]

[0005] When performing cutting using the fan disclosed in Patent Document 1, an operator must manually attach the fan to a tool holder, which is a burdensome and tedious task for the operator.

[0006] The present invention has been made in view of the above points, and an object of the present invention is to provide a cutting machine in which the operator does not need to manually attach a fan. [Means for solving the problem]

[0007] The cutting machine of the present invention comprises a rotating body including a processing tool for processing a workpiece and a spindle that directly or indirectly holds and rotates the processing tool, a fan that is detachably attached to the rotating body and blows air onto the workpiece and / or the processing tool held by the spindle as the rotating body rotates, a moving mechanism that moves the rotating body, and an attachment / detachment mechanism that attaches and detaches the fan to and from the rotating body by moving the rotating body with the moving mechanism.

[0008] When cutting a workpiece in a cutting machine, cutting dust is generated. In some cases, a fan is attached to the rotating body to remove this dust. Conversely, depending on the processing conditions, it may be desirable to perform cutting processing without using a fan. With the above configuration, the fan can be automatically attached and detached to and from the rotating body. There is no need for an operator to attach and detach the fan. This reduces the workload of the operator. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide a cutting machine that does not require an operator to manually attach a fan. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a perspective view of a cutting machine according to an embodiment of the present invention; [Figure 2] FIG. 2 is a plan view of the workpiece and the adapter. [Figure 3] FIG. 2 is a schematic diagram of a processing tool. [Figure 4] FIG. 2 is a perspective view of the cutting machine when the door of the storage device is open. [Figure 5] FIG. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] FIG. [Figure 9] FIG. [Figure 10] FIG. 1 is a front view of the spindle when the fan is attached to the tool holder. [Figure 11] FIG. [Figure 12] FIG. 2 is a plan view of the holding device, the tool magazine, and the fan holder. [Figure 13] FIG. 1 is a cross-sectional view of a tool magazine when machining tools are stored in the tool magazine. [Figure 14] FIG. [Figure 15] FIG. 2 is a block diagram of a cutting machine. [Figure 16] FIG. 10 is a diagram showing an example of a processing condition under which a fan comes into contact with a workpiece. [Figure 17] 10 is a flowchart of a machining tool replacement operation. [Figure 18] FIG. 10 is a schematic diagram of the spindle and fan holder when the fan is removed from the tool holder. [Figure 19] FIG. 1 is a schematic diagram of a spindle and a fan holder when the fan is attached to the tool holder. [Figure 20] FIG. 10 is a schematic diagram of the spindle and the fan holder when the fan is attached to the tool holder and is being removed from the fan holder. [Figure 21] FIG. 1 is a perspective view of a fan equipped with a magnet. [Figure 22] FIG. 1 is a plan view of a tool magazine and a fan holder in a cutting machine equipped with two fans of different sizes. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, a cutting machine according to one embodiment will be described with reference to the drawings. It should be noted that the embodiment described here is not intended to limit the present invention. Furthermore, the same reference numerals are used for members and parts that perform the same functions, and duplicated descriptions will be omitted or simplified as appropriate.

[0012] FIG. 1 is a perspective view of a cutting machine 100 according to this embodiment. In the following description, the direction away from the cutting machine 100 as viewed from the front of the cutting machine 100 is referred to as the front, and the direction toward the cutting machine 100 is referred to as the rear. The symbols F, Rr, L, R, U, and D in the drawings represent the front, rear, left, right, top, and bottom of the cutting machine 100, respectively. The cutting machine 100 is disposed in an XYZ Cartesian coordinate system. The X-axis, Y-axis, and Z-axis are mutually orthogonal. As shown in FIG. 1 , the X-axis extends in the front-to-back direction and slopes downward toward the rear. The Y-axis extends in the left-to-right direction. The Z-axis extends in the up-to-down direction and slopes backward toward the top. However, these directions are defined for convenience of explanation and do not limit the installation mode of the cutting machine 100 or the present invention.

[0013] The cutting machine 100 cuts a workpiece 5 (see FIG. 2) with a processing tool 8 (see FIG. 3) to produce an object. The type of object is not particularly limited, and may be a dental molded product, such as a crown prosthesis, an artificial tooth, or a denture base. Examples of crown prostheses include crowns, bridges, copings, inlays, onlays, veneers, and custom abutments. In this embodiment, the cutting machine 100 is used in the field of dental technology and produces a dental molded product from the workpiece 5. However, the field in which the cutting machine 100 is used is not limited to the field of dental technology.

[0014] FIG. 2 shows an example of a workpiece 5 to be cut in this embodiment. The workpiece 5 shown in FIG. 2 is plate-shaped. Here, the workpiece 5 is disk-shaped. The workpiece 5 is formed from materials such as zirconia, wax, polymethyl methacrylate resin (PMMA), hybrid resin, PEEK (polyether ether ketone resin), and gypsum. When zirconia is used as the material of the workpiece 5, semi-sintered zirconia is preferably used. However, the shape and material of the workpiece 5 are not particularly limited. The workpiece 5 may be, for example, block-shaped (e.g., cubic or rectangular). A circular fitting hole 6a is formed in the adapter 6. The workpiece 5 is attached to the adapter 6 by fitting into the fitting hole 6a.

[0015] FIG. 3 is a schematic diagram of a processing tool 8. The processing tool 8 according to this embodiment is formed in a rod shape. The processing tool 8 has a cutting tool portion 8a at its lower portion. The upper portion of the processing tool 8 is a shank portion 8b that is gripped by a spindle 55 (see FIG. 8) described later. A tool holder 61 described later is attached to the processing tool 8. The processing tool 8 includes not only a tool for cutting the workpiece 5, but also a tool for polishing the workpiece 5.

[0016] The cutting machine 100 is a cutting machine with a so-called disk changer function. As shown in FIG. 1, the cutting machine 100 includes a storage device 10, a transport device 30 (see FIG. 5), and a cutting device 50.

[0017] The storage device 10 is a device that stores a plurality of workpieces 5. As shown in FIG. 4, the storage device 10 is disposed to the left of the cutting device 50. The storage device 10 is configured so that it can store a plurality of workpieces 5 therein. The storage device 10 includes a storage case main body 11, a door 12, and a stocker 13.

[0018] As shown in FIG. 4, the storage case body 11 is formed in a box shape and has an internal space. A stocker 13 is disposed in the internal space of the storage case body 11. An opening 17 is formed in the front of the storage case body 11. The opening 17 connects the internal space of the storage case body 11 with the outside. The door 12 is provided so that the opening 17 of the storage case body 11 can be opened and closed. The door 12 is supported by the storage case body 11. As shown in FIGS. 1 and 4, the door 12 is configured to be rotatable around a right end portion 12a.

[0019] As shown in FIG. 4, the stocker 13 is attached to the inner wall of the door 12. The stocker 13 includes a stocker main body 21 and a plurality of storage sections 22 provided in the stocker main body 21. The stocker main body 21 is formed in a box shape. A transport hole 23 is formed in the wall surface of the stocker main body 21. The transport hole 23 is an opening that connects the internal space of the storage case main body 11 with the internal space of the cutting device 50. As shown in FIG. 4, when the door 12 is open, the transport hole 23 opens toward the front. When the door 12 is closed, the transport hole 23 opens toward the right, toward the cutting device 50.

[0020] As shown in FIG. 4, the multiple storage sections 22 are arranged in a straight line in the Z-axis direction. Each of the multiple storage sections 22 has a space inside. One workpiece 5 is stored in one storage section 22. The workpiece 5 is stored in the storage section 22 while attached to the adapter 6. The number of storage sections 22 that the stocker 13 has is not particularly limited, but in this embodiment, there are six. Therefore, six workpieces 5 can be stored in the stocker 13. However, the number and arrangement of the storage sections 22 are not particularly limited.

[0021] FIG. 5 is a front view schematically showing the stocker 13 and the conveying device 30. The conveying device 30 is disposed inside the storage device 10. The conveying device 30 is a device that selects one workpiece 5 from the plurality of workpieces 5 stored in the stocker 13 and conveys the selected workpiece 5 to the cutting device 50 (see FIG. 1). The conveying device 30 removes the workpiece 5 stored in the storage section 22 of the stocker 13 from the stocker 13 and conveys it to the cutting device 50. The conveying device 30 conveys the workpiece 5 to the cutting device 50 while it is still attached to the adapter 6. The conveying device 30 also transports the workpiece 5 that has been cut in the cutting device 50 from the cutting device 50 to the stocker 13 of the storage device 10. The conveying device 30 stores the workpiece 5 removed from the cutting device 50 in the storage section 22 of the stocker 13. The transport device 30 is a device that can automatically exchange a plurality of workpieces 5, and realizes a so-called auto-disk changer (automatic exchange mechanism for workpieces 5).

[0022] Fig. 6 is a plan view showing the conveying device 30. Fig. 6 shows a state in which the workpiece 5 is gripped by the conveying device 30. As shown in Fig. 6, the conveying device 30 includes a conveying main body 31, a gripping hook 32, a first conveying mechanism 37, and a second conveying mechanism 38.

[0023] As shown in FIG. 5, the conveying body 31 is disposed in the internal space of the storage case body 11 of the storage device 10. As shown in FIG. 6, the conveying body 31 has a plate-shaped first conveying body 31a and a box-shaped second conveying body 31b. The first conveying body 31a is configured to be movable in the Y-axis direction. Here, the first conveying body 31a is provided with a first shaft 41 and a second shaft 42 extending upward. The first shaft 41 and the second shaft 42 are disposed to face each other in the X-axis direction. The first shaft 41 is disposed in front of the second shaft 42. The second conveying body 31b is configured to be able to accommodate the first conveying body 31a.

[0024] As shown in FIG. 6 , the gripping hook 32 clamps and holds the workpiece 5. The gripping hook 32 has a first hook 32a, a second hook 32b, a first spring 34, and a second spring 35. The first hook 32a and the second hook 32b clamp and hold the adapter 6, to which the workpiece 5 is attached, in the X-axis direction. The first hook 32a and the second hook 32b are arranged opposite each other in the X-axis direction. Here, the first hook 32a and the second hook 32b can clamp the left end of the adapter 6. The first hook 32a is arranged in front of the second hook 32b. The first hook 32a is supported by a first shaft 41 and is rotatable about the first shaft 41. The second hook 32b is supported by a second shaft 42 and is rotatable about the second shaft 42.

[0025] The first spring 34 applies an elastic force to the first hook 32a. The first spring 34 applies an elastic force in a direction in which the tip of the first hook 32a moves toward the second hook 32b. The second spring 35 applies an elastic force to the second hook 32b. The second spring 35 applies an elastic force in a direction in which the tip of the second hook 32b moves toward the first hook 32a. In this embodiment, the first hook 32a and the second hook 32b clamp and grip the adapter 6 using the first spring 34 and the second spring 35, respectively. However, the mechanism of the gripping hook 32 described here is merely an example, and the configuration of the gripping hook 32 is not particularly limited. The gripping hook 32 may be configured to grip the adapter 6, for example, by electrical control.

[0026] The first transport mechanism 37 is a mechanism that transports the transport body 31 and the gripping hooks 32 in the Z-axis direction. As shown in FIG. 5, the first transport mechanism 37 is disposed inside the storage case body 11 of the storage device 10. As shown in FIG. 6, the first transport mechanism 37 includes a pair of first rails 37a and a first drive motor 37b. The pair of first rails 37a are disposed to face each other in the X-axis direction. As shown in FIG. 5, the pair of first rails 37a extend in the Z-axis direction. The pair of first rails 37a face each other in the Y-axis direction with the stocker 13 of the storage device 10.

[0027] A conveying body 31 (more specifically, a second conveying body 31b) is slidably mounted on the pair of first rails 37a. As shown in FIG. 6, the conveying body 31 is disposed between the pair of first rails 37a. The first drive motor 37b is a motor that moves the conveying body 31 and the gripping hook 32 in the Z-axis direction. Here, the first drive motor 37b is connected to the conveying body 31 (more specifically, the second conveying body 31b), and moves the conveying body 31 along the pair of first rails 37a in the Z-axis direction, thereby moving the gripping hook 32 in the Z-axis direction. However, the configuration of the first conveying mechanism 37 is not particularly limited, and the first conveying mechanism 37 may be a so-called ball screw mechanism.

[0028] The second transport mechanism 38 transports the first transport body 31a and the gripping hook 32 in the Y-axis direction. The second transport mechanism 38 transports the workpiece 5 to the cutting device 50 (see FIG. 1) through a transport hole 23 (see FIG. 5) formed in the stocker body 21. As shown in FIG. 6, the second transport mechanism 38 includes a pair of second rails 38a and a second drive motor 38b. The pair of second rails 38a are rails that are extendable and retractable in the Y-axis direction. The pair of second rails 38a are arranged to face each other in the X-axis direction. The second rails 38a include a fixed rail 39a, a movable rail 39b, and an intermediate rail 39c.

[0029] The fixed rail 39a is fixed to the second transport body 31b. The intermediate rail 39c connects the fixed rail 39a and the movable rail 39b and is disposed between the fixed rail 39a and the movable rail 39b. The intermediate rail 39c is provided so as to be slidable relative to the fixed rail 39a and the movable rail 39b. However, the configuration of the second transport mechanism 38 is not particularly limited. The first transport body 31a and the gripping hook 32 are disposed between the pair of movable rails 39b. Here, the first transport body 31a is fixed to the pair of movable rails 39b.

[0030] The second drive motor 38b is a motor that moves the first conveying body 31a and the gripping hook 32 of the conveying body 31 in the Y-axis direction. The second drive motor 38b is connected to the first conveying body 31a. However, the second drive motor 38b may also be connected to a pair of second rails 38a. In this case, when the second drive motor 38b is driven, the movable rail 39b moves in the Y-axis direction, changing the positional relationship between the fixed rail 39a and the movable rail 39b. For example, when the movable rail 39b moves to the right, the first conveying body 31a mounted on the movable rail 39b and the workpiece 5 gripped by the gripping hook 32 are transported to the cutting device 50 through the transport hole 23 (see FIG. 5). When the movable rail 39b moves to the left, the fixed rail 39a and the movable rail 39b overlap in the Y-axis direction. As a result, the first conveying body 31a and the gripping hook 32 are housed within the second conveying body 31b.

[0031] Next, the cutting device 50 shown in Fig. 1 will be described. The cutting device 50 is a device that cuts the workpiece 5. The cutting device 50 is formed integrally with the storage device 10. A portion of the cutting device 50 is in communication with the storage device 10.

[0032] Fig. 7 is a front view showing the cutting device 50. Fig. 7 shows a state in which the cover 52 is open. As shown in Fig. 7, the cutting device 50 includes a cutting case main body 51, a cover 52, a rotating body 54, a spindle motor 59 (see Fig. 15), a fan 63 (see Fig. 9), a cutting movement mechanism 65, a holding device 70, a rotation support member 75 (see Fig. 11), a tool magazine 85, a fan holder 88 (see Fig. 12), and a holding device movement mechanism 91.

[0033] As shown in Fig. 7, cutting case body 51 is formed in a box shape and has a space inside. An opening 53 is formed in the front of cutting case body 51. The space inside cutting case body 51 communicates with the outside through opening 53. Cover 52 is provided so as to be able to open and close opening 53. Here, cover 52 is supported by cutting case body 51 so as to be slidable in the Z-axis direction.

[0034] FIG. 8 is a perspective view of the rotating body 54. In this embodiment, the rotating body 54 includes a processing tool 8, a spindle 55, and a tool holder 61. The spindle 55 holds and rotates the processing tool 8. As shown in FIG. 7, the spindle 55 extends in the Z-axis direction. A spindle motor 59 (see FIG. 15) is connected to the spindle 55. The spindle motor 59 is a drive source that rotates the spindle 55 around the Z-axis. When the spindle motor 59 is driven, the spindle 55 rotates around the Z-axis. As the spindle 55 rotates, the processing tool 8 held by the spindle 55 rotates around the Z-axis. As a result, the processing tool 8 rotates around an axis extending in the Z-axis direction. The cutting device 50 cuts the workpiece 5 (see FIG. 2) by bringing the processing tool 8 into contact with the workpiece 5 while the spindle 55 is rotating the processing tool 8.

[0035] As shown in FIG. 8, the spindle 55 has a tool gripping portion 57 that grips the processing tool 8. The tool gripping portion 57 forms the lower end portion of the spindle 55. In this embodiment, the tool gripping portion 57 is configured to be able to grip the shank portion 8b (see FIG. 3) of the processing tool 8. The tool gripping portion 57 grips the processing tool 8 so that the axis of the spindle 55 and the axis of the processing tool 8 are aligned. The configuration of the tool gripping portion 57 is not particularly limited. The tool gripping portion 57 may be, for example, an electric chuck.

[0036] As shown in FIG. 8 , the tool holder 61 is a member attached to the processing tool 8. In this embodiment, the tool holder 61 serves to determine the position of the processing tool 8 relative to the tool gripping portion 57 of the spindle 55 so that the processing tool 8 can be appropriately attached to the tool gripping portion 57. By adjusting the attachment position of the tool holder 61 in the axial direction (Z-axis direction) of the processing tool 8, the length of the shank portion 8b (see FIG. 3 ) of the processing tool 8 held by the tool gripping portion 57 can be adjusted. By attaching the tool holder 61 to an appropriate position in the axial direction of the processing tool 8, the tool gripping portion 57 can appropriately hold the processing tool 8. When the spindle 55 rotates around the Z-axis, the tool holder 61 rotates around the Z-axis together with the processing tool 8.

[0037] The shape of the tool holder 61 is not particularly limited, but in this embodiment, the tool holder 61 is formed in a cylindrical shape. The tool holder 61 has an insertion hole 61a that opens in the Z-axis direction. The tool holder 61 is attached to the machining tool 8 by inserting the machining tool 8 into the insertion hole 61a of the tool holder 61. Serration grooves 61b extending in the Z-axis direction are formed on the outer peripheral surface of the tool holder 61. The serration grooves 61b are formed around the entire outer peripheral surface of the tool holder 61.

[0038] FIG. 9 is a perspective view of the fan 63. The fan 63 is a member used to remove cutting powder generated when cutting the workpiece 5 (see FIG. 2). The material of the fan 63 is not particularly limited, but in this embodiment it is a resin material. The fan 63 is composed of blades 63b and a frame 63c. In this embodiment, the outer shape of the frame 63c is cylindrical. The blades 63b are provided on the frame 63c. The fan 63 is configured so that when the fan 63 rotates around the Z axis, the blades 63b can blow air in the Z axis direction. The shape of the blades 63b is not particularly limited.

[0039] A hole 63a is formed inward of the blades 63b. The hole 63a is open in the Z-axis direction and is located in the center of the fan 63. The diameter of the hole 63a is approximately equal to the outer diameter of the tool holder 61. The fan 63 is configured so that the hole 63a can be fitted into the tool holder 61. As shown in FIG. 10 , when the hole 63a is fitted into the tool holder 61, the fan 63 is attached to the tool holder 61. When the spindle 55 rotates around the Z-axis with the fan 63 attached to the tool holder 61, the fan 63 also rotates around the Z-axis. As a result, air is blown onto the workpiece 5 and the machining tool 8 while cutting the workpiece 5.

[0040] As shown in FIG. 9, serration grooves 63d extending in the Z-axis direction are formed on the inner peripheral surface of the hole 63a. The serration grooves 63d are formed around the entire inner peripheral surface of the hole 63a. The serration grooves 63d of the hole 63a are configured to mesh with serration grooves 61b (see FIG. 8) formed on the outer peripheral surface of the tool holder 61. When the fan 63 is attached to the tool holder 61, the serration grooves 61b of the tool holder 61 mesh with the serration grooves 63d of the fan 63. When the tool holder 61 rotates around the Z-axis in conjunction with the rotation of the spindle 55 (see FIG. 8) around the Z-axis, the serration grooves 61b of the tool holder 61 mesh with the serration grooves 63d of the fan 63, making it difficult for the fan 63 to slip relative to the tool holder 61. In other words, the rotational force of the spindle 55 is efficiently transmitted to the fan 63. This allows the fan 63 to effectively blow air toward the workpiece 5 and the machining tool 8 when the spindle 55 rotates around the Z axis.

[0041] The cutting movement mechanism 65 is a mechanism for moving the spindle 55. In this embodiment, the spindle 55 is moved in the Z-axis direction and the Y-axis direction. Note that the cutting movement mechanism 65 may also move the spindle 55 in three axes, i.e., the X-axis, the Y-axis, and the Z-axis. As shown in FIG. 7, the cutting movement mechanism 65 includes a Z-axis movement mechanism 65Z that moves the spindle 55 in the Z-axis direction and a Y-axis movement mechanism 65Y that moves the spindle 55 in the Y-axis direction. The Z-axis movement mechanism 65Z includes a pair of guide shafts 66Z extending in the Z-axis direction, a carriage 67Z slidably mounted on the guide shafts 66Z, and a Z-axis motor 68Z (see FIG. 15) that moves the carriage 67Z in the Z-axis direction. As shown in FIG. 7, the spindle 55 is attached to the carriage 67Z. When the Z-axis motor 68Z moves the carriage 67Z in the Z-axis direction, the spindle 55 moves together with the carriage 67Z in the Z-axis direction.

[0042] The Y-axis movement mechanism 65Y includes a pair of guide shafts 66Y extending in the Y-axis direction, a carriage 67Y slidably mounted on the guide shafts 66Y, and a Y-axis motor 68Y (see FIG. 15) that moves the carriage 67Y in the Y-axis direction. As shown in FIG. 7, the guide shaft 66Z of the Z-axis movement mechanism 65Z is fixed to the carriage 67Y. When the Y-axis motor 68Y moves the carriage 67Y in the Y-axis direction, the carriage 67Z also moves in the Y-axis direction. Because a spindle 55 is attached to the carriage 67Z, when the carriage 67Y moves in the Y-axis direction, the spindle 55 also moves simultaneously.

[0043] As shown in FIGS. 11 and 12 , the holding device 70 is a device that detachably holds the workpiece 5. Here, the holding device 70 holds the workpiece 5 to be cut during cutting. The holding device 70 is a so-called clamp. The holding device 70 has a shape that corresponds to the shape of a portion of the workpiece 5, i.e., the shape of a portion of the adapter 6. Here, the holding device 70 is C-shaped. The holding device 70 has a first holding portion 71, a second holding portion 72, and a connecting portion 73. The first holding portion 71 and the second holding portion 72 extend in the Y-axis direction and face each other in the X-axis direction. The workpiece 5 is placed between the first holding portion 71 and the second holding portion 72, and is gripped by being sandwiched between the first holding portion 71 and the second holding portion 72. The connecting portion 73 connects the first holding portion 71 and the second holding portion 72, and spans between the first holding portion 71 and the second holding portion 72. Here, the connecting portion 73 is connected to the rear end of the first holding portion 71 and the rear end of the second holding portion 72.

[0044] The rotation support member 75 supports the holding device 70 rotatably around the X-axis. The rotation support member 75 is C-shaped in a plan view. The rotation support member 75 includes a first portion 76, a second portion 77, and a third portion 78. The first portion 76 and the second portion 77 extend in the Y-axis direction. The first portion 76 and the second portion 77 face each other in the X-axis direction. The first holding portion 71 of the holding device 70 is rotatably connected to the first portion 76 by a first rotation shaft 80 extending in the X-axis direction. The second holding portion 72 of the holding device 70 is rotatably connected to the second portion 77 by a second rotation shaft 81 extending in the X-axis direction. The third portion 78 extends in the X-axis direction. The third portion 78 is connected to the rear end of the first portion 76 and the rear end of the second portion 77. A case 83 that houses a rotary motor 82 is provided in the second portion 77. The rotation motor 82 is connected to the second rotation shaft 81. When the rotation motor 82 is driven, the second rotation shaft 81 rotates around the X-axis direction. As a result, the holding device 70 rotates around the X-axis direction together with the first rotation shaft 80 and the second rotation shaft 81.

[0045] As shown in FIG. 12 , the tool magazine 85 is provided on the right side of the rotary support member 75. The tool magazine 85 is capable of accommodating a plurality of machining tools 8. The diameters and shapes of the plurality of machining tools 8 may be the same or different. The plurality of machining tools 8 are accommodated in the tool magazine 85 with tool holders 61 attached to each of them. In this embodiment, tool holders 61 with a common outer diameter and material are attached to the plurality of machining tools 8. The tool magazine 85 is formed in a box shape. Here, a plurality of storage holes 86 for accommodating the machining tools 8 are formed in the top surface of the tool magazine 85. In this embodiment, 15 storage holes 86 are formed, so that the tool magazine 85 can accommodate a maximum of 15 machining tools 8. The number of storage holes 86 is not particularly limited.

[0046] FIG. 13 is a cross-sectional view of the accommodating hole 86. Note that the serration grooves 61b of the tool holder 61 are not shown in FIG. 13. In this embodiment, the accommodating hole 86 is a stepped hole including a first accommodating hole 86a and a second accommodating hole 86b. The second accommodating hole 86b is located below the first accommodating hole 86a. The diameter of the first accommodating hole 86a is larger than the diameter of the second accommodating hole 86b. The outer diameter of the machining tool 8 is smaller than the diameter of the first accommodating hole 86a and smaller than the diameter of the second accommodating hole 86b. Therefore, the machining tool 8 can be inserted into both the first accommodating hole 86a and the second accommodating hole 86b. The outer diameter of the tool holder 61 is smaller than the diameter of the first accommodating hole 86a and larger than the diameter of the second accommodating hole 86b. Therefore, the tool holder 61 can be inserted into the first accommodating hole 86a but cannot be inserted into the second accommodating hole 86b. As shown in FIG. 13, the tool magazine 85 accommodates the machining tool 8 by supporting the tool holder 61 on the bottom surface 86c of the first accommodating hole 86a.

[0047] 13, the vertical length of the first accommodating hole 86a is approximately equal to the vertical length of the tool holder 61. Therefore, when the machining tool 8 is accommodated in the tool magazine 85, the machining tool 8 is inserted into the accommodating hole 86 with the shank portion 8b exposed. This allows the tool gripping portion 57 to grip the machining tool 8 while it remains inserted in the accommodating hole 86.

[0048] As shown in FIG. 12 , a fan holder 88 is provided in the tool magazine 85. The fan holder 88 is an example of an "attachment / detachment mechanism" that attaches and detaches the fan 63 to and from the tool holder 61. In the present embodiment, the fan holder 88 is provided in the front portion of the tool magazine 85. Note that the arrangement of the fan holder 88 is not limited thereto. The fan holder 88 is a member for accommodating the fan 63 when the fan 63 is not attached to the tool holder 61. As shown in FIG. 14 , the fan holder 88 includes a base 88 a and an accommodating portion 88 b. The base 88 a is formed in a rectangular parallelepiped shape. As shown in FIG. 12 , the base 88 a is fixed to the tool magazine 85, thereby fixing the fan holder 88 to the tool magazine 85. Note that the method for fixing the fan holder 88 to the tool magazine 85 is not particularly limited. For example, the fan holder 88 may be fixed using a bolt or by being bonded with an adhesive.

[0049] The housing portion 88b is provided at the front of the base portion 88a. In this embodiment, the housing portion 88b and the base portion 88a are integrally formed. As shown in FIG. 14, the housing portion 88b has a shape corresponding to part of the outer shape of the fan 63. The housing portion 88b is formed in a C-shape that opens forward. The fan 63 is housed in the fan holder 88 by being inserted into the housing portion 88b from the front. As shown in FIG. 14, the housing portion 88b has a groove portion 88c formed in its inner circumferential surface. The groove portion 88c is formed over almost the entire inner circumferential surface of the housing portion 88b. The groove portion 88c is recessed toward the outside (radially outward) of the housing portion 88b. The groove portion 88c is formed to fit into the frame 63c of the fan 63. The fan 63 is housed in the housing portion 88b of the fan holder 88 by fitting the groove portion 88c into the frame 63c of the fan 63. When the fan 63 is housed in the housing portion 88b, the groove portion 88c restricts movement of the fan 63 in the Z-axis direction. Step portions 88d, 88e are formed on the upper and lower sides of the groove portion 88c of the housing portion 88b. The upper and lower step portions 88d, 88e face the upper and lower surfaces of the frame 63c of the fan 63, respectively, in the Z-axis direction. The upper step portion 88d abuts against the upper surface of the frame 63c, restricting upward movement of the fan 63. The lower step portion 88e abuts against the lower surface of the frame 63c, restricting downward movement of the fan 63.

[0050] The holding device moving mechanism 91 shown in FIG. 7 is a mechanism that moves the holding device 70 in the X-axis direction. The holding device moving mechanism 91 moves the tool magazine 85 and the fan holder 88 in the X-axis direction together with the holding device 70. The configuration of the holding device moving mechanism 91 is not particularly limited. Although not shown here, the holding device moving mechanism 91 includes a rail extending in the X-axis direction and a drive motor. The holding device 70 is engaged with the rail via other members. When the drive motor is driven, the holding device 70 is configured to be movable in the X-axis direction along the rail.

[0051] The control device 150 shown in FIG. 1 is a device that performs control related to cutting of the workpiece 5. The control device 150 is made up of a microcomputer. In this embodiment, the control device 150 is provided inside the cutting machine 100. Note that the control device 150 may also be provided outside the cutting machine 100. The control device 150 includes, for example, a central processing unit (CPU), a ROM that stores programs to be executed by the CPU, and a RAM. Here, the control related to cutting of the workpiece 5 is performed using a program stored in the microcomputer.

[0052] FIG. 15 is a block diagram of the cutting machine 100. As shown in FIG. 15, the control device 150 is communicatively connected to the transport device 30 and the cutting device 50. The control device 150 controls the operation of the transport device 30 and the cutting device 50. Here, the control device 150 is communicatively connected to the first drive motor 37b and the second drive motor 38b of the transport device 30. The control device 150 is communicatively connected to the spindle 55, the spindle motor 59, the cutting movement mechanism 65, the rotation motor 82, and the holding device movement mechanism 91. The control device 150 is communicatively connected to the tool gripping portion 57 of the spindle 55. The control device 150 is communicatively connected to the Y-axis motor 68Y and the Z-axis motor 68Z of the cutting movement mechanism 65. The control device 150 is configured to control the operation of these devices.

[0053] The control device 150 functionally comprises a transfer control unit 151, a processing control unit 152, a tool exchange control unit 153, and a fan attachment / detachment control unit 154. The control device 150 may comprise processing units other than these, but the description thereof will be omitted here. The transfer control unit 151 is a processing unit that controls the transfer device 30 and controls the automatic exchange operation of the workpiece 5 by the transfer device 30.

[0054] The machining control unit 152 is a processing unit that controls the cutting device 50 to perform cutting on the workpiece 5. The machining control unit 152 drives the spindle motor 59 to rotate the machining tool 8, while controlling the cutting movement mechanism 65 and the holding device movement mechanism 91 to change the relative positional relationship between the machining tool 8 and the workpiece 5. In this way, the machining control unit 152 executes control to perform cutting on the workpiece 5.

[0055] The machining control unit 152 is configured to selectively perform machining with the fan 63 attached to the tool holder 61 and machining with the fan 63 not attached to the tool holder 61 based on predetermined conditions. Specifically, the predetermined conditions are machining conditions under which the fan 63 comes into contact with the workpiece 5 when cutting is performed with the fan 63 attached to the tool holder 61. For example, as shown by symbol P1 in FIG. 16 , when cutting the bottom surface of a small-diameter, deep hole, the fan 63 comes into contact with the workpiece 5 when cutting is performed with the fan 63 attached to the tool holder 61. In such a case, the machining control unit 152 is configured to perform machining with the fan 63 not attached to the tool holder 61. Conversely, as shown in Figure 10, when the machining conditions are such that the fan 63 will not come into contact with the workpiece 5 even when cutting with the fan 63 attached to the tool holder 61, the machining control unit 152 is configured to perform machining with the fan 63 attached to the tool holder 61.

[0056] 15 is a processing unit that controls the cutting device 50 to perform control to replace the machining tool 8 held by the tool holding unit 57 of the spindle 55. In this embodiment, the tool replacement control unit 153 performs control to replace the machining tool 8 held by the tool holding unit 57 based on machining data input by a user to the cutting machine 100. Here, the machining data is data that includes information such as the material of the workpiece 5, the shape of the workpiece 5 before machining, the shape of the workpiece 5 after machining, and the type of machining tool 8 used for cutting.

[0057] The fan attachment / detachment control unit 154 is a processing unit that controls the cutting device 50 to execute control to attach and detach the fan 63 to and from the tool holder 61 attached to the machining tool 8. The fan attachment / detachment control unit 154 is configured to execute control to attach the fan 63 to the tool holder 61 before the machining control unit 152 executes machining with the fan 63 attached to the tool holder 61. In addition, the fan attachment / detachment control unit 154 is configured to execute control to detach the fan 63 from the tool holder 61 after the machining control unit 152 executes machining with the fan 63 attached to the tool holder 61.

[0058] The operation of the cutting machine 100 according to this embodiment will be described below. Here, the operation of replacing the processing tool 8 and the operation of attaching and detaching the fan 63 to and from the tool holder 61 will be described. First, the operation of replacing the processing tool 8 will be described. In this embodiment, the operation of replacing the processing tool 8 is performed when the fan 63 is not attached to the tool holder 61. Therefore, when the tool replacement control unit 153 attempts to replace the processing tool 8 with the fan 63 attached to the tool holder 61, the control device 150 is configured so that the fan attachment / detachment control unit 154 removes the fan 63 from the tool holder 61 before the tool replacement control unit 153 replaces the processing tool 8. In other words, the fan attachment / detachment control unit 154 is configured to control the removal of the fan 63 from the tool holder 61 before the tool replacement control unit 153 controls the removal of the processing tool 8 from the spindle 55. After the tool exchange control unit 153 executes control to mount the machining tool 8 on the spindle 55, the fan attachment / detachment control unit 154 is configured to execute control to mount the fan 63 on the tool holder 61.

[0059] 17 is a flowchart of the operation of replacing the processing tool 8. As described above, the operation of replacing the processing tool 8 is executed by the tool replacement control unit 153. In step S01, the tool replacement control unit 153 controls the cutting movement mechanism 65 and the holding device movement mechanism 91 to move at least one of the spindle 55 and the tool magazine 85 so that the spindle 55 is positioned above the tool magazine 85. In step S01, the tool replacement control unit 153 moves at least one of the spindle 55 and the tool magazine 85 so that the axis of the processing tool 8 held by the tool holding unit 57 and the center of the accommodation hole 86 that accommodates the processing tool 8 are approximately aligned.

[0060] In step S02, the tool change control unit 153 moves the spindle 55 downward. In step S02, as shown in FIG. 13, the spindle 55 is moved downward until the tool holder 61 abuts against the bottom surface 86c of the first accommodating hole 86a of the accommodating hole 86. As shown in FIG. 17, in step S03, the tool change control unit 153 controls the tool gripping unit 57 to release the grip on the processing tool 8. As a result, the processing tool 8 is accommodated in the accommodating hole 86.

[0061] In step S04, the tool change control unit 153 moves the spindle 55 upward. In step S05, the tool change control unit 153 moves at least one of the spindle 55 and the tool magazine 85 to a position above the machining tool 8 to be used next. In step S05, the tool change control unit 153 moves at least one of the spindle 55 and the tool magazine 85 so that the axis of the machining tool 8 to be used next and the axis of the spindle 55 are approximately aligned. In step S06, the tool change control unit 153 moves the spindle 55 downward. In step S07, the tool change control unit 153 controls the tool gripping unit 57 to grip the machining tool 8. This completes the machining tool 8 replacement operation.

[0062] Next, the operation of cutting machine 100 when attaching and detaching fan 63 to and from tool holder 61 will be described with reference to Figures 18 to 20. Note that serration grooves 61b of tool holder 61 are not shown in Figure 18. As described above, the operation of attaching and detaching fan 63 to and from tool holder 61 is controlled by fan attachment / detachment control unit 154. First, the operation of mounting fan 63 to tool holder 61 will be described.

[0063] The fan attachment / detachment control unit 154 controls the cutting movement mechanism 65 and the holding device movement mechanism 91 to move at least one of the spindle 55 and the fan holder 88 so that the spindle 55 is positioned above the fan 63 housed in the fan holder 88. At this time, as shown in FIG. 18 , the fan attachment / detachment control unit 154 moves at least one of the spindle 55 and the fan holder 88 so that the axis of the spindle 55 and the center of the hole 63a of the fan 63 are approximately aligned.

[0064] When the spindle 55 moves until the axis of the spindle 55 and the center of the hole 63a of the fan 63 are substantially aligned, the fan attachment / detachment control unit 154 moves the spindle 55 downward. As a result, as shown in FIG. 19 , the tool holder 61 attached to the machining tool 8 fits into the hole 63a of the fan 63, and the fan 63 is attached to the tool holder 61. In this embodiment, the fan 63 is held in the tool holder 61 by frictional force. At this time, the fan 63 is housed in the housing portion 88b (see FIG. 14 ) of the fan holder 88, and movement in the Z-axis direction is restricted by the groove portion 88c (see FIG. 14 ). Therefore, when the tool holder 61 fits into the hole 63a of the fan 63, the fan 63 does not move in the Z-axis direction, and the fan 63 can be properly attached to the tool holder 61. In this embodiment, the Z-axis direction corresponds to the “first direction.”

[0065] When the fan 63 is attached to the tool holder 61, the fan attachment / detachment control unit 154 detaches the fan 63 from the fan holder 88 while the fan 63 remains attached to the tool holder 61. Because the fan holder 88 has a C-shape that opens forward, the fan 63 can move forward. In this embodiment, the X-axis direction corresponds to the "second direction." If the fan holder 88 is made of a flexible material (e.g., synthetic resin), the fan 63 can move forward while pushing the fan holder 88 apart. As shown in FIG. 20 , the fan attachment / detachment control unit 154 controls the holding device moving mechanism 91 to move the fan holder 88 backward. That is, the spindle 55 to which the fan 63 is attached is moved forward relative to the fan holder 88. This causes the fan attachment / detachment control unit 154 to detach the fan 63 from the fan holder 88. With the above operations, the operation of attaching the fan 63 to the tool holder 61 is completed.

[0066] Next, the operation of the fan attachment / detachment control unit 154 when detaching the fan 63 from the tool holder 61 will be described.

[0067] 20, the fan attachment / detachment control unit 154 controls the cutting movement mechanism 65 and the holding device movement mechanism 91 to move at least one of the spindle 55 and the fan holder 88 so that the spindle 55 is positioned in front of the fan holder 88. At this time, the fan attachment / detachment control unit 154 moves at least one of the spindle 55 and the fan holder 88 so that the positions of the fan 63 and the fan holder 88 are approximately the same in the Y-axis direction and the Z-axis direction.

[0068] When the spindle 55 has moved until the positions of the fan 63 and the fan holder 88 are substantially the same in the Y-axis and Z-axis directions, the fan attachment / detachment control unit 154 controls the holding device moving mechanism 91 to move the fan holder 88 forward. That is, the spindle 55 to which the fan 63 is attached is moved rearward relative to the fan holder 88. As a result, the fan 63 is accommodated in the accommodation portion 88b (see FIG. 14) of the fan holder 88, as shown in FIG. 19.

[0069] When the fan 63 is accommodated in the accommodation portion 88b (see FIG. 14) of the fan holder 88, the fan attachment / detachment control portion 154 moves the spindle 55 upward. At this time, the movement of the fan 63 in the Z-axis direction is restricted by the groove portion 88c (see FIG. 14) of the fan holder 88, so the fan 63 does not move upward. Therefore, as shown in FIG. 18, the fan 63 detaches from the tool holder 61. By the above operation, the fan 63 is removed from the tool holder 61.

[0070] According to this embodiment, the cutting machine 100 includes a rotating body 54, a fan 63, a cutting movement mechanism 65, and a fan holder 88. The rotating body 54 includes a processing tool 8, a spindle 55, and a tool holder 61. The spindle 55 has a tool gripping portion 57 that grips the processing tool 8 and rotates around the Z axis. The tool holder 61 is attached to the processing tool 8. The fan 63 is detachably attached to the tool holder 61 and blows air onto the processing tool 8 and the workpiece 5 as the spindle 55 rotates. The cutting movement mechanism 65 moves the spindle 55 in the Y-axis and Z-axis directions. The fan holder 88 is configured to allow the fan 63 to be attached to and detached from the tool holder 61 by moving the spindle 55 using the cutting movement mechanism 65. This allows the fan 63 to be attached to and detached from the tool holder 61 automatically. An operator does not need to attach or detach the fan 63 to or from the tool holder 61. The workload of workers can be reduced.

[0071] According to this embodiment, the fan holder 88 is fitted with the frame 63c of the fan 63 and has a groove 88c that restricts movement of the fan 63 in the Z-axis direction. When the spindle 55 is moved in the Z-axis direction to attach or detach the fan 63, the fan 63 does not move in the Z-axis direction, so the fan 63 can be attached or detached to or from the tool holder 61 smoothly.

[0072] According to this embodiment, the fan holder 88 is formed in a C-shape that opens forward. This allows the fan 63 to be detached from the fan holder 88 while remaining attached to the tool holder 61 by moving the spindle 55 forward relative to the fan holder 88.

[0073] According to this embodiment, the cutting machine 100 is equipped with a tool magazine 85 that stores a plurality of processing tools 8, and a control device 150 that has a tool change control unit 153 that executes control to attach and detach any one of the plurality of processing tools 8 to and from the spindle 55. This allows the cutting machine 100 to automatically change the processing tools 8.

[0074] In a cutting machine in which the fan 63 is always attached to the tool holder 61 and cannot be automatically attached or detached, the machining tool 8 needs to be replaced with the fan 63 attached to the tool holder 61 and stored in the tool magazine 85. Therefore, the fan 63 may get in the way when replacing the machining tool 8. Therefore, the spacing between the storage holes 86 of the tool magazine 85 needs to be increased, resulting in an increase in the size of the tool magazine 85. However, according to this embodiment, the machining tool 8 is replaced with the fan 63 not attached to the tool holder 61. The machining tool 8 is stored in the tool magazine 85 with the fan 63 not attached to the tool holder 61. Therefore, the fan 63 does not get in the way when replacing the machining tool 8. Therefore, there is no need to increase the spacing between the storage holes 86, which allows the tool magazine 85 to be made smaller.

[0075] In this embodiment, the tool holders 61 having a common outer diameter are attached to the multiple processing tools 8 housed in the tool magazine 85, and therefore the fans 63 can be attached to the multiple processing tools 8. As a result, when it is desired to attach the fans 63 to the multiple processing tools 8 and perform processing, it is not necessary to prepare multiple fans 63 corresponding to the dimensions and shapes of each of the processing tools 8 in advance.

[0076] In this embodiment, when the tool replacement control unit 153 executes control to replace the machining tool 8, the fan 63 is not attached to the tool holder 61. Therefore, when replacing the machining tool 8 while the fan 63 is attached to the tool holder 61, it is necessary to remove the fan 63 before replacing the machining tool 8. According to this embodiment, the fan holder 88 is provided in the front part of the tool magazine 85. Because the fan holder 88 is provided near the tool magazine 85, the movement amount of the spindle 55 and the tool magazine 85 is small when replacing the machining tool 8 after removing the fan 63 from the tool holder 61. Therefore, the replacement of the machining tool 8 after removing the fan 63 can be performed efficiently.

[0077] According to this embodiment, the fan 63 has a hole 63a into which the tool holder 61 is fitted. As a result, the fan 63 is attached to the tool holder 61 by the frictional force generated between the fan 63 and the tool holder 61.

[0078] According to this embodiment, serration grooves 63d are formed on the inner peripheral surface of the hole 63a of the fan 63. Serration grooves 61b that mesh with the serration grooves 63d of the fan 63 are formed on the outer peripheral surface of the tool holder 61. This makes it difficult for the fan 63 to slip relative to the tool holder 61. The rotational force of the spindle 55 is efficiently transmitted to the fan 63. This allows air to be efficiently blown onto the machining tool 8 and the workpiece 5.

[0079] According to this embodiment, the machining control unit 152 of the control device 150 is configured to selectively perform machining with the fan 63 attached to the tool holder 61 and machining with the fan 63 not attached to the tool holder 61, based on predetermined conditions. The fan attachment / detachment control unit 154 of the control device 150 is configured to attach the fan 63 to the tool holder 61 before performing machining with the fan 63 attached to the tool holder 61, and to detach the fan 63 from the tool holder 61 after performing machining with the fan 63 attached to the tool holder 61. This allows machining to be performed with the fan 63 attached or detached in accordance with the machining conditions.

[0080] Although one embodiment of the present invention has been described above, the embodiment is merely an example, and various other embodiments are possible.

[0081] In the above embodiment, the fan 63 is attached to the tool holder 61 by fitting the tool holder 61 into the hole 63a of the fan 63. However, the method of attaching the fan 63 to the tool holder 61 is not limited to this. For example, as shown in FIG. 21 , the fan 63 may be provided with a magnet 95, and the tool holder 61 may be formed of a ferromagnetic material so as to be attracted to the magnet 95. In this case, the fan 63 is attracted to the tool holder 61 by the magnetic force of the magnet 95, and the fan 63 is attached to the tool holder 61. This makes it difficult for the fan 63 to come off the tool holder 61 when attached.

[0082] As shown in FIG. 22 , the cutting machine 100 may include a fan 163 in addition to the fan 63 of the above-described embodiment. The number of the additional fan 163 is not particularly limited and may be one or two or more. The fan 63 and the additional fan 163 may have different shapes or the same shape. The size of the fan 63 and the additional fan 163 may be the same or different from each other. When the cutting machine 100 includes the additional fan 163 in addition to the fan 63, the control device 150 may be configured to selectively perform machining with the fan 63 attached to the tool holder 61 or with the additional fan 163 attached to the tool holder 61 based on predetermined conditions. This allows the fan to be replaced according to the machining conditions and cutting can be performed. For example, when the size of the fan 63 and the size of the additional fan 163 are different, cutting can be performed using a fan of a size appropriate for the machining conditions.

[0083] In the above embodiment, the fan holder 88 is provided in the tool magazine 85. However, the arrangement of the fan holder 88 is not limited to this. The fan holder 88 may be provided inside the cutting device 50 at a position different from the tool magazine 85. For example, the fan holder 88 may be provided in the case 83 that houses the rotary motor 82. The fan holder 88 may also be configured to be attached to the adapter 6. The fan holder 88 and the fan 63 housed in the fan holder 88 may be housed in the stocker 13 of the housing device 10 while attached to the adapter 6. In this case, the cutting machine 100 may be configured so that, when the fan 63 is to be attached to or detached from the tool holder 61, the fan holder 88 and the fan 63 are transported into the cutting device 50 together with the adapter 6 by the transport device 30.

[0084] In the above embodiment, the fan holder 88 is used as the attachment / detachment mechanism for attaching / detaching the fan 63 to / from the tool holder 61, but the configuration of the attachment / detachment mechanism is not limited to this. For example, a conventionally known electric gripper with a built-in electric motor may be used as the attachment / detachment mechanism. In this case, the electric gripper may be configured to operate by driving the electric motor and grip the fan 63. When attaching / detaching the fan 63 to / from the tool holder 61, the electric gripper may be configured to grip the fan 63 and restrict movement of the fan 63.

[0085] In the above embodiment, the tool gripping portion 57 directly grips the processing tool 8. However, the tool gripping portion 57 may indirectly grip the processing tool 8. For example, the tool gripping portion 57 may grip the processing tool 8 by gripping a tool holder 61. In this case, the upper part of the tool holder 61 is the gripped part gripped by the tool gripping portion 57. Tool holders 61 having a common outer shape of the gripped part may be attached to a plurality of processing tools 8. This allows the tool gripping portion 57 to appropriately grip processing tools 8 of different shapes.

[0086] In the above embodiment, the fan 63 is detachably attached to the tool holder 61. However, the fan 63 may be configured to be detachably attached to a member other than the tool holder 61 as long as it is configured to be detachably attached to the rotating body 54. For example, the fan 63 may be configured to be detachably attached to the tool gripping portion 57 of the spindle 55, or may be configured to be detachably attached to the processing tool 8.

[0087] In the above embodiment, the cutting machine 100 is a cutting machine with a disc changer function, but the cutting machine 100 may not have a disc changer function. In other words, the cutting machine 100 does not have to be equipped with the storage device 10 and the transport device 30. [Explanation of symbols]

[0088] 5 Workpiece 8 Processing Tools 50 Cutting equipment 54 Rotating Body 55 Spindle 57 Tool gripping part 61 Tool holder 61b Serration groove 63 fans 63a Hole (engaging part) 63d serration groove 65 Cutting movement mechanism (moving mechanism) 85 Tool Magazine 88 Fan holder (detachable mechanism) 88c Groove (restriction part) 95 Magnet 100 cutting machine 150 control device 163 Another Fan

Claims

1. a rotating body including a processing tool for processing a workpiece and a spindle for directly or indirectly holding and rotating the processing tool; a fan that is detachably provided on the rotating body and that blows air onto the workpiece and / or the processing tool held by the spindle as the rotating body rotates; a moving mechanism that moves the rotating body; an attachment / detachment mechanism that attaches / detaches the fan to / from the rotating body by moving the rotating body with the movement mechanism.

2. the attachment / detachment mechanism has a fan holder that houses the fan, The cutting machine according to claim 1 , wherein the fan holder is configured to restrict movement of the fan when the fan is attached to or detached from the rotating body.

3. The cutting machine according to claim 2 , wherein the fan holder restricts movement of the fan when the rotating body moves in a first direction, and allows movement of the fan when the rotating body moves in a second direction.

4. The fan holder is formed in a C-shape that opens in the second direction, The cutting machine according to claim 3 , wherein the fan holder includes a restricting portion that restricts movement of the fan in the first direction.

5. a tool magazine that accommodates a plurality of the machining tools; a control device that executes control to attach and detach one of the plurality of machining tools housed in the tool magazine to and from the rotating body.

6. the control device is configured to execute control for attaching and detaching the fan to and from the rotating body; The control device a control for disengaging the fan from the rotating body is executed before a control for disengaging the processing tool from the spindle is executed; The cutting machine according to claim 5 , wherein the cutting machine is configured to execute control to mount the fan on the rotating body after executing control to mount the machining tool on the spindle.

7. The cutting machine according to claim 5, wherein the attachment / detachment mechanism is provided in the tool magazine.

8. 2. The cutting machine according to claim 1, wherein the fan has an engaging portion that engages with the rotating body.

9. The cutting machine according to claim 8 , wherein the engaging portion is a hole into which the rotating body is fitted.

10. The hole has a serration groove formed therein, The cutting machine according to claim 9, wherein the outer peripheral surface of the rotor is formed with serration grooves that mesh with the serration grooves of the hole.

11. 9. The cutting machine according to claim 8, wherein the rotating body is made of a ferromagnetic material, and the engaging portion is a magnet.

12. a control device that selectively performs processing with the fan attached to the rotating body and processing with the fan not attached to the rotating body based on predetermined conditions; The control device Before performing processing with the fan attached to the rotating body, the fan is attached to the rotating body; The cutting machine according to claim 1 , wherein the fan is detached from the rotating body after machining is performed with the fan attached to the rotating body.

13. one or more fans other than the fan; 2. The cutting machine according to claim 1, further comprising a control device that selectively performs machining with the fan attached to the rotating body and machining with the other fan attached to the rotating body based on predetermined conditions.

14. The cutting machine according to claim 13, wherein the fan and the another fan are different in size from each other.

Images