Processing device, control method of the same, and program

Abstract

To facilitate connection between a dust collection duct 110 and a hose 301 of a dust collector 300, regardless of a positional relation between a processing device 1000 and the dust collector 300.SOLUTION: The processing device 1000 includes: a spindle which processes a workpiece; an exterior cover 101 which houses the spindle; and the dust collection duct 110 which is connected to the hose 301 of the dust collector 300 so as to collect chips occurring due to processing by the spindle with the dust collector 300. The dust collection duct 110 has: a cover part 112 which receives chips occurring due to the processing; a connection port 111 which is connected to the hose 301 of the dust collector 300; and a duct part 114 which allows the cover part 112 and the connection port 111 to communicate with each other. In the dust collection duct 110, the cover part 112 is connected to a lower side of the exterior cover 101 so that a position of the connection port 111 connected to the hose 301 of the dust collector 300 can be switched.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a processing apparatus for processing a workpiece.

Background Art

[0002] In a processing apparatus, there is known one that has a processing space inside the processing apparatus and performs processing within the processing space. Further, as such a processing apparatus, in order to collect dust such as chips generated in the processing space, a dust collection port connected to a dust collector is provided on the back side of the processing apparatus, and the cutting chips collected in the processing area inside the processing apparatus are sucked from the dust collection port by the dust collector and discarded outside. (See Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Here, in the case of a configuration in which a dust collector is arranged outside the processing apparatus as in Patent Document 1, dust collection from the processing apparatus is performed by connecting a dust collection duct on the processing apparatus side and a hose on the dust collector side. In the case of the configuration of Patent Document 1, since the dust collection port is provided on the back side of the processing apparatus, the dust collection duct is also provided on the back side. However, the dust collector is not always installed on the back side of the processing apparatus, and depending on the positional relationship between the processing apparatus and the dust collector, it may be difficult to connect the dust collection duct and the hose of the dust collector.

Means for Solving the Problems

[0005] The processing device of the present invention includes a spindle for processing a workpiece, a housing for accommodating the spindle, and a dust collection duct connected to the hose of the dust collector to collect the chips generated by the processing of the spindle. The dust collection duct has a receiving portion for receiving the chips generated by the processing, a connection port connected to the hose of the dust collector, and a duct portion for communicating the receiving portion and the connection port. The receiving portion is connected to the lower side of the housing so that the position of the connection port connected to the hose of the dust collector can be switched.

Advantages of the Invention

[0006] According to the present invention, regardless of the positional relationship between the processing device and the dust collector, it is possible to easily connect the dust collection duct and the hose of the dust collector.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Mode for Carrying Out the Invention

[0008] The embodiment will be described with reference to FIGS. 1 to 13(b). First, the overall configuration of the processing device 1000 of the present embodiment will be described with reference to FIGS. 1 and 2.

[0009] [Processing device] FIG. 1 is a front view of the processing device 1000 according to the present embodiment with the dust collector 300 connected thereto. As shown in FIG. 1, the processing device 1000 houses a processing machine 100 (FIG. 2) in an exterior cover 101 as a housing. The exterior cover 101 has an opening / closing door 102 as a door that can access a processing space 140 (FIG. 9(a) etc.) described later. By opening the opening / closing door 102, it is possible to exchange the workpiece and manually exchange the tool. The opening / closing door 102 is provided on the front surface of the processing device 1000 so as to be openable and closable. Also, during the processing of the workpiece, the opening / closing door 102 is closed. The opening and closing of the opening / closing door 102 is detected by a sensor (not shown).

[0010] Further, the dust collector 300 collects chips generated by the processing machine 100. For this purpose, the dust collector 300 and the processing device 1000 are connected via a hose 301 and a dust collection duct 110. Although details will be described later, the hose 301 has flexibility and is connected to the dust collector 300, and can move the position on the connection side with the dust collection duct 110 to a certain extent freely. On the other hand, the dust collection duct 110 has its proximal end connected to a dust collection port 131 (see FIGS. 8(a) and (b), etc.) provided in the processing device 1000, and its distal end connected to the hose 301. The dust collection port 131 is formed to open into a processing space 140 where processing is performed by a tool in the processing device 1000. Chips generated in the processing space 140 are collected by the dust collector 300 via the dust collection port 131, the dust collection duct 110, and the hose 301.

[0011] In the case of this embodiment, a plurality of legs 103 for supporting the processing device 1000 and installing it on the installation surface are provided on the lower surface of the exterior cover 101. Therefore, there is a gap between the lower surface of the exterior cover 101 and the installation surface. The dust collection duct 110 is provided below the exterior cover 101 as will be described later, and is disposed in the gap between the lower surface of the exterior cover 101 and the installation surface.

[0012] [Processing machine] FIG. 2 shows the processing machine 100 disposed in the exterior cover 101 of the processing device 1000. In FIG. 2, a housing portion 130 (see FIGS. 9(a) and (b), etc.) for forming a processing space 140 to be described later is omitted. The processing machine 100 includes a frame 1 as a moving mechanism support member, a first moving mechanism 10, a second moving mechanism 20, and a third moving mechanism 30 respectively supported by the frame 1, a support mechanism 40 for supporting a workpiece W as a processing object, a first rotation mechanism (rotating device) 50 and a second rotation mechanism 60 as rotation means for rotatably rotating the support mechanism 40, a tool magazine 70, and an electrical unit 80. The first moving mechanism 10, the second moving mechanism 20, and the third moving mechanism 30 constitute a moving device 200 as a moving means for relatively moving a spindle 11 and a holding device 41, to be described later, in the three axial directions of X, Y, and Z.

[0013] Frame 1 is placed on a pedestal 2 having a cavity inside. As shown in FIG. 2, it is composed of a first frame portion 3 and a second frame portion 4 bent at a right angle from the end of the first frame portion 3. In this embodiment, the first frame portion 3 is arranged along the vertical direction, and the second frame portion 4 is arranged along the horizontal direction.

[0014] The first moving mechanism 10 is supported on the first surface 3a of the first frame portion 3 of the frame 1 via the second moving mechanism 20, and the main shaft 11 can move in the Z-axis direction (vertical direction, first direction). A tool 12 is detachably attached to the main shaft 11 via a tool holder (clamp). The main shaft 11 is rotationally driven by a motor 13. The first moving mechanism 10 has a motor 14 and a guide shaft (not shown) arranged in the Z-axis direction, and reciprocally moves (moves up and down) the main shaft 11 in the Z-axis direction along the guide shaft by driving the motor 14. The main shaft 11 is movably supported on the guide shaft via a Z-axis support member (not shown). The guide shaft and the Z-axis support member are covered by a cover 17.

[0015] The second moving mechanism 20 is supported on the first surface 3a of the first frame portion 3 of the frame 1, and can move the main shaft 11 together with the first moving mechanism 10 in the X-axis direction (horizontal direction, second direction) orthogonal to the Z-axis direction. The second moving mechanism 20 has a motor 21 and a guide shaft (not shown) arranged in the X-axis direction, and reciprocally moves the first moving mechanism 10 in the X-axis direction along the guide shaft by driving the motor 21.

[0016] The third moving mechanism 30 is supported on the second surface 4a of the second frame portion 4 of the frame 1, and can move the support mechanism 40 in the Y-axis direction (horizontal direction, third direction) orthogonal to the Z-axis direction and the X-axis direction. The third moving mechanism 30 has a motor (not shown) and a guide shaft (not shown) arranged in the Y-axis direction, and reciprocally moves the support mechanism 40 in the Y-axis direction along the guide shaft by driving the motor.

[0017] In addition, the third moving mechanism 30 includes a support plate portion 31 that supports the second rotating mechanism 60, and the support plate portion 31 reciprocates in the Y-axis direction along the guide shaft. As shown in FIG. 2, the support mechanism 40 side in the Y-axis direction of the gantry 2 is open, preventing interference between the support plate portion 31 and the second rotating mechanism supported by the support plate portion 31 and the gantry 2 even when they move in the Y-axis direction. And, as will be described in detail later, the third moving mechanism 30 can move the support mechanism 40 in the Y-axis direction together with the second rotating mechanism 60 and the first rotating mechanism 50.

[0018] The support mechanism 40 supports, for example, a workpiece W as an object to be machined that is machined by a tool 12 such as a dental prosthesis. Such a support mechanism 40 has a holding device 41 that holds the workpiece W, and a support portion 42 whose both ends are respectively connected to the rotating portions 51 of the first rotating mechanism 50 and that supports the workpiece W via the holding device 41. The holding device 41 and the support portion 42 are separate bodies, and as will be described in detail later, the holding device 41 is fixed to the support portion 42. However, the holding device 41 and the support portion 42 may be integrated.

[0019] The first rotating mechanism 50 is rotatable about an a-axis that is a rotation axis orthogonal to the Z-axis direction of the support mechanism 40. In the present embodiment, the a-axis is parallel to the X-axis direction. Such a first rotating mechanism 50 has a support frame 53 that rotatably supports the rotating portions 51, 52 (see FIG. 3(b)), and a motor that rotationally drives the rotating portion 51. The support frame 53 is formed in a substantially U-shape so as to surround the support mechanism 40, and includes a first support portion 53a that supports the motor and the rotating portion 51 on one side (drive side), a second support portion 53b that supports the rotating portion 52 on the other side (driven side), and a connecting portion 53c that connects the first support portion 53a and the second support portion 53b.

[0020] The rotating part 51 supported by the first support part 53a and the rotating part 52 supported by the second support part 53b are arranged so as to face each other in the a-axis direction and are rotatable about the a-axis as the rotation axis. And both end parts in the a-axis direction of the support mechanism 40 are respectively supported by the rotating parts on both sides. Thereby, the first rotation mechanism 50 supports the support mechanism 40 so as to be rotatable about the a-axis (X-axis).

[0021] The first rotation mechanism 50 is rotatable by at least 180° and can reverse the front and back of the workpiece W supported by the support mechanism 40. In the present embodiment, the first rotation mechanism 50 can rotate the support mechanism 40 by 360° about the a-axis.

[0022] The second rotation mechanism 60 can rotate the support mechanism 40 about the b-axis which is another rotation axis orthogonal to the Z-axis direction and the a-axis. In the present embodiment, the b-axis is parallel to the Y-axis direction. Such a second rotation mechanism 50 has a rotating part to which the support frame 53 of the first rotation mechanism 50 is attached, and a motor that rotationally drives the rotating part. The rotating part is attached with the connecting part 53c of the support frame 53 and can rotate the support frame 53 about the b-axis by being rotationally driven by the motor. Therefore, the second rotation mechanism 60 supports the support mechanism 40 together with the first rotation mechanism 50 so as to be rotatable about the b-axis (Y-axis). As long as the above-described moving mechanism, support mechanism, and rotation mechanism can execute their respective roles, they may be realized by other structures.

[0023] The tool magazine 70 as a tool holding unit can store a plurality of tools. It is arranged adjacent to the first rotation mechanism 50 and supported by a support member, and this support member is supported by the support plate portion 31 of the third movement mechanism 30. Therefore, the tool magazine 70 can be moved in the Y-axis direction together with the support mechanism 40 and the like by the third movement mechanism 30. However, even when the support mechanism 40 rotates about the a-axis, the tool magazine 70 does not rotate, and even when the support mechanism 40 rotates about the b-axis, the tool magazine 70 does not rotate. That is, the tool magazine 70 is supported by the support plate portion 31 so as to maintain a predetermined posture even when the support mechanism 40 rotates about the a-axis and the b-axis. The tool magazine 70 can be moved in the Y-axis direction together with the support mechanism 40 and the like by the third movement mechanism 30.

[0024] A plurality of types of tools integrally formed with the tool holders 12a respectively are held in the tool magazine 70 and arranged in a plurality of rows along the Y-axis direction. And the tool attached to the spindle 11 can be exchanged. The tool exchange may be performed by an operator or automatically by the processing machine 100. In this embodiment, in order to automatically exchange the tool, the spindle 11 can automatically grip and release the tool.

[0025] When automatically exchanging the tool, the second movement mechanism 20 and the third movement mechanism 30 move the empty space in the tool magazine 70 where there is no tool below the spindle 11. In other words, the spindle 11 is relatively moved on the XY plane with respect to the tool magazine 70. Then, the first movement mechanism 10 lowers the spindle 11 (moves it in the Z-axis direction), and by operating the detaching device such as a chuck provided on the spindle 11, the tool 12 attached to the spindle 11 is removed and placed in the empty space of the tool magazine 70. Next, the first movement mechanism 10 raises the spindle 11, and the second movement mechanism 20 and the third movement mechanism 30 move the position where the tool 12 to be exchanged in the tool magazine 70 is arranged below the spindle 11. Then, again, the first movement mechanism 10 lowers the spindle 11, and by operating the detaching device, the tool 12 to be exchanged is attached to the spindle 11. Note that the tool 12 is, for example, a drill or an end mill.

[0026] In this embodiment, before and after the storage and retrieval of the tool, the tip of the tool 12 held by the spindle 11 is brought into contact with a tool length sensor (touch sensor) 96 as tip detection means capable of detecting the tip of the tool 12, thereby performing an operation of checking whether the tool 12 is held by the spindle 11. At this time, the center (a-axis) in the Z direction of the workpiece is aligned with the tool tip. As shown in FIG. 2, the tool length sensor 96 is provided at a position adjacent to the tool magazine 70. In particular, in this embodiment, it is disposed on the second support portion 53b that supports the driven-side rotating portion 52.

[0027] The electrical equipment unit 80 is attached inside the frame 1. That is, the electrical equipment unit 80 is disposed on the opposite side of the first surface 3a of the first frame portion 3 and on the opposite side of the second surface 4a of the second frame portion 4. Such an electrical equipment unit 80 controls the processing machine 100, and includes a control board that controls the driving of the spindle and the motors of each axis, and a plurality of control units that calculate the pulses output to the motors from the signals of the rotary encoders of the corresponding motors and appropriately control the rotation of the corresponding motors.

[0028] Moreover, the processing machine 100 of this embodiment is an NC processing device that performs automatic processing under computer control. Specifically, processing data is created by a CAD / CAM system using an external terminal such as a personal computer, and based on this data, the workpiece W is processed by numerical control. For this purpose, an external terminal such as a personal computer that issues commands to the processing machine 100 is connected to the control board of the processing machine 100. The external terminal may create an NC code according to the conditions and transmit it to the control board. Note that the processing machine 100 itself may be provided with a computer equipped with a CPU and a memory capable of numerical control.

[0029] For example, when a dental prosthesis is created by a processing machine 100, data of the dental prosthesis measured by a three-dimensional measuring instrument is transferred to a CAD / CAM system, and processing data is created by the CAD / CAM system. Then, based on this processing data, the processing machine 100 is controlled to cut the workpiece W with the tool 12, thereby creating a dental prosthesis.

[0030] [Air blowing] Next, the configuration of the air blowing in the processing apparatus 1000 of the present embodiment will be described with reference to FIGS. 3(a) and 4. In the present embodiment, an air blow portion 87 (see FIG. 4(a), etc.) for blowing air toward the tool mounted at the tip of the spindle 11 is provided on the spindle 11. In the present embodiment, as will be described later, by blowing air toward the holding device 41 using this air blow portion 87, the chips adhering to the holding device 41 are removed. In other words, this air blow portion 87 can blow air toward the holding device 41.

[0031] Also, as shown in FIGS. 3(a) and (b), during the cleaning operation of blowing air from the air blow portion 87 onto the holding device 41, the holding device 41 is inclined with respect to the horizontal direction by the second rotation mechanism 60 as a rotation device. In the present embodiment, the holding device 41 is inclined such that the side opposite to the tool magazine 70 disposed adjacent to the holding device 41 is downward, in other words, such that the tool magazine 70 side is higher. The inclination angle is, for example, 20° with respect to the horizontal direction. Here, the inclination angle refers to the angle inclined about the Y-axis from the state where the surface of the holding device 41 or the surface of the workpiece W is parallel to the XY plane, that is, the horizontal state. Depending on the configuration of the apparatus, it may be inclined about the X-axis from the horizontal state. The cleaning operation will be described later.

[0032] The air blow part 87 will be described with reference to FIGS. 4(a) and 4(b). FIG. 4(a) is a perspective view of the main shaft 11 as seen from the side (tip side) where the tool is attached. The air blow part 87 has a plurality (four locations in this embodiment) of air outlets (blowout ports) 121 around the chuck part 11a for attaching the tool on the tip side of the main shaft 11. Further, an air inlet 122 connected to a compressor (not shown) is provided in the main shaft 11. When compressed air is fed through the air inlet 122, air is blown from the four air outlets 121 toward the tool provided at the tip of the main shaft 11. Thereby, the tool is cooled and the chips adhering to the tool are removed. Since there are four air outlets 121, air can be applied to the entire tool. Of course, there may be four or more air outlets 121.

[0033] FIG. 4(b) is a cross-sectional view of the air outlet 121 of the air blow part 87. The air blow part 87 has a communication port 123 connected to the air inlet 122, a nozzle 124 formed downstream of the communication port 123 in the direction of air flow and having a smaller cross-sectional area than the communication port 123, and an air outlet 121 formed at the tip of the nozzle 124. These are formed inside the main shaft 11. The nozzle 124 is inclined toward the tool side attached to the main shaft 11 as it goes downstream in the direction of air flow. Thereby, the air flowing in from the air inlet 122 is blown out from the air outlet 121 through the communication port 123 and the nozzle 124. Since the nozzle 124 is thinner than the communication port 123, the flow velocity of the air blown out from the air outlet 121 can be increased. Further, since the nozzle 124 is inclined toward the tool, air can be blown from the air outlet 121 toward the tool. Note that the air outlet 121 is formed in a partial conical shape such that the cross-sectional area increases from the nozzle 124 toward the tip, so that the air outlet 121 is easy to process.

[0034] [Control Configuration of the Processing Apparatus] Next, the control configuration of the processing apparatus 1000 will be described with reference to FIG. 5. As shown in FIG. 5, the electrical equipment unit 80 includes a CPU 85 which is an arithmetic means, input / output ports (I / O) 86i, control units 84x, 84y, 84z for each motor, a control unit 84c for the main spindle 11, a control unit 84a for the a-axis, a control unit 84b for the b-axis, and the like. The CPU 85 provided on the control board of the electrical equipment unit 80 performs various operations using the memory 86m based on the input data and signals, and transmits instructions for the rotational speed and position to the control units 84x, 84y, 84z, 84a, 84b, 84c which serve as connected servo amplifiers.

[0035] The I / O 86i is connected to the compressor 350, the dust collector 300, and the tool length sensor 96 of the processing machine 100. The compressor 350 supplies compressed air to the air blow unit 87, blows air onto the tool from the air blow unit 87 as described above, and collects the removed chips with the dust collector 300. The tool length sensor 96 detects the length of the tool and sends a signal to the CPU 85.

[0036] The control units 84x, 84y, 84z for each motor drive the motors for X, Y, and Z based on commands from the CPU 85. Encoders are provided in the control units 84x, 84y, 84z for each motor respectively. The encoder detects, for example, the number of rotations, the rotation angle, and the rotation direction of the rotation shafts of the control units 84x, 84y, 84z for each motor. Then, the amount (position) by which each stage x, y, z has moved due to the drive of the control units 84x, 84y, 84z for each motor is detected.

[0037] The control unit 84c controls a motor (not shown) that rotates the main spindle 11 to control the rotation speed of the main spindle (spindle). Also, the control units 84a, 84b for the a-axis and b-axis drive the motors for the a-axis and b-axis based on commands from the CPU 85.

[0038] The control unit 84a controls the motor 54 of the first rotation mechanism 50 to rotate the support mechanism 40 about the a-axis. The control unit 84b controls the motor of the second rotation mechanism 60 to tilt the support mechanism 40 about the b-axis and determine the posture of the support mechanism 40. Further, the control unit 84x controls the motor 21 of the second movement mechanism 20 to move the main shaft 11 in the X-axis direction and determine the position of the main shaft 11 in the X-axis direction. The control unit 84y controls the motor of the third movement mechanism 30 to move the support mechanism 40 in the Y-axis direction and determine the position of the support mechanism 40 in the Y-axis direction. The control unit 84z controls the motor 13 of the first movement mechanism 10 to move the main shaft 11 in the Z-axis direction and determine the position of the main shaft 11 in the Z-axis direction. Thereby, the relative positions of the main shaft 11 and the support mechanism 40 in the X-axis, Y-axis, and Z-axis are determined. By controlling each part of the processing apparatus 1000 by the CPU 85 in this way, predetermined processing is performed on the workpiece W held by the holding device 41 of the support mechanism 40 as described above.

[0039] [Holding device] Here, as shown in FIG. 3(b), the holding device 41 of the present embodiment has a substantially C-shaped configuration. This is to enable machining of the object to be machined (workpiece) even when it is tilted by 90° about the a-axis (X-axis), and the holding device 41 has a C-shaped configuration with the front side in FIG. 3(a) open. That is, the holding device 41 for holding the workpiece W includes a pair of arm portions 41a and a connecting portion 41b. The pair of arm portions 41a are arranged so as to sandwich the workpiece W from both sides. The connecting portion 41b connects one ends of the pair of arm portions 41a to each other and is integrally formed with the pair of arm portions 41a. On the other hand, the other end sides of the pair of arm portions 41a are not connected, whereby the holding device 41 is formed in a substantially C-shaped configuration.

[0040] Further, the holding device 41 includes a resin part 410 as a resin main body, a sheet metal 420 as a first reinforcing plate, a sheet metal 430 as a second reinforcing plate, and a holding cover 440 as a holding member. The holding device 41 is configured by coupling these with a plurality of bolts 420a, 440a, etc. Specifically, with the resin part 410 sandwiched between a pair of sheet metals 420, 430, the pair of sheet metals 420, 430 are fixed to the resin part 410 with bolts. In this state, the work W on the disk is placed, the work W is pressed by the holding cover 440, and the holding cover 440 is fixed to the resin part 410 with bolts via the sheet metal 420. Such bolts are rotated with a wrench or the like to fix and remove the work. Note that, in addition to fastening with such bolts, other fastening methods may be used.

[0041] In any case, a plurality of fasteners such as the plurality of bolts 420a, 440a are exposed on the surface of the holding device 41, and chips generated when processing the work W with a tool tend to remain around the bolts 420a, 440a. If chips are deposited in this way, it becomes difficult to rotate the bolts with a tool such as a wrench when attaching and detaching the work. Therefore, in this embodiment, the following cleaning operation can be executed.

[0042] [Cleaning Operation] Regarding the cleaning operation of the holding device 41 of this embodiment, it will be described with reference to FIGS. 6 to 7 while referring to FIGS. 3(a) and 4. As shown in FIGS. 3(a) and (b) described above, during the cleaning operation, the motor of the second rotation mechanism 60 is controlled to rotate the support mechanism 40 by 20° in the horizontal direction about the b-axis. Then, while blowing air with the posture of the support mechanism 40 inclined, the main shaft 11 is moved.

[0043] In the cleaning operation, the air is blown out while moving the main shaft 11 above a plurality of bolts 420a and 440a, which are fixtures, in order. Note that if the air is moved so as to hit each bolt, it does not necessarily have to pass above each bolt. Specifically, the air is blown in the order of the arrows shown in FIG. 6. Here, the holding device 41 of the support mechanism 40 is inclined with respect to the horizontal direction so that the right side of FIG. 6 is higher. Further, in FIG. 6, the bolts at the positions of P1, P4, P5, and P8 are bolts 440a for fixing the holding cover 440 for pressing and holding the workpiece W to the resin part 410 via the sheet metal 420. Also, the bolts at the positions of P2, P3, P6, and P7 are bolts 420a for fixing the sheet metal 420 to the resin part 410.

[0044] The main shaft 11 moves relative to the holding device 41 so that the position of the air blown from the air blow part 87 is first between the position P1 and the position P2, and then in the order of the positions P3, P4, P5, P6, P7, and P8. The relative movement between the main shaft 11 and the holding device 41 is performed by the above-described first movement mechanism 10, second movement mechanism 20, and third movement mechanism 30 as movement devices. Note that when the main shaft 11 is not moved in the Z-axis direction during the cleaning operation, the second movement mechanism 20 and the third movement mechanism 30 may be used to relatively move the main shaft 11 and the holding device 41.

[0045] As described above, since the holding device 41 is inclined so that the right side of FIG. 6 is higher, the positions P1 to P4 on the right side of FIG. 6 are higher than the positions P5 to P8 on the left side. Therefore, during the cleaning operation, the main shaft 11 and the holding device 41 move relatively so that the air blown by the air blow part 87 is sequentially blown from the upper side to the lower side of the inclined holding device 41. By blowing the air in such an order, the air is blown from obliquely above to below against the chips adhering to the surface of the holding device 41, so that the chips can be efficiently removed. In particular, the bolts 420a and 440a are parts protruding from the surface of the holding device 41, and it is difficult for the chips to fall off. However, by inclining the holding device 41 with respect to the horizontal direction and blowing the air sequentially from the upper side to the lower side as described above, even the chips that are difficult to fall off can be efficiently removed.

[0046] However, the order of blowing air is not limited to this. For example, in the above example, since the distances between position P1 and position P2, and between position P7 and position P8 are relatively short, by blowing air between these positions, the chips at both positions can be removed. However, when the distances are long, air may be blown toward each position. Also, regarding positions P3 to P6, if the positions of adjacent bolts are close, air may be blown between the nearby bolts.

[0047] Also, as the order of blowing air, first, start from the lower side to the upper side of the holding device 41 that is inclined at the opening side opposite to the connecting portion 41b of the holding device 41. Next, it may be performed from the upper side to the lower side of the connecting portion 41b. For example, the order is position P7, P8, P1, P2, P3, P4, P5, P6. In this way, when air is blown from the lower side to the upper side at the opening side of the C-shaped holding device 41, that is, at the portion without the connecting portion, since the chips easily fall through the opening of the holding device 41, even if air is blown in order from the lower side, the chips can be efficiently removed. And on the side of the connecting portion 41b, by blowing air from the upper side to the lower side, the chips easily fall along the inclination, and the chips can be efficiently removed. In the case of such an order as well as in the case of the order shown in FIG. 6 above, since the main shaft 11 can be moved in a substantially circular manner while constantly applying air to the surface of the holding device 41, the cleaning operation can be performed efficiently.

[0048] An example of the flow of such a cleaning operation will be described using the flowchart of FIG. 7. The cleaning operation (cleaning mode) in the present embodiment is executed by the CPU 85 expanding and executing a program in a storage means such as the memory 86m. When the cleaning mode is executed during machining, first, the current coordinate position is stored in the memory 86m as the return coordinate position (S1). That is, since the cleaning mode is executed during machining, the position is saved in order to return to the original machining position after the cleaning mode ends.

[0049] Next, the main shaft 11 is raised in the Z-axis direction and retracted from the holding device 41 (S2). At this time, the rotation of the main shaft 11 is stopped (S3). Next, the tool held by the main shaft 11 is stored in the tool magazine 70 (S4). After storing the tool, the main shaft 11 is raised again (S5). Next, the second rotation mechanism 60 is driven to rotate the holding device 41 about the b-axis (Y-axis) and tilt it with respect to the horizontal direction (S6). The angle is, for example, 20° with respect to the horizontal direction as described above, but other angles may also be used.

[0050] In this state, the main shaft 11 and the holding device 41 are relatively moved in the X-axis direction and the Y-axis direction and moved to the midpoint between the position P1 and the position P2 shown in FIG. 6 (S7). As described above, the distance between the position P1 and the position P2 is short, and air can be blown against them at the same time, so the midpoint position is used here. Next, the main shaft 11 is lowered in the Z-axis direction (S8). This position becomes the standby position before air is blown against it.

[0051] Then, the blowing of air by the air blow portion 87 is started (S9). At this time, the air flow rate is maximized, and air is blown using the nozzle 124 of the air blow portion 87 to generate a strong air blow and make it easier to blow off chips. Next, while blowing air, the main shaft 11 is moved to the position P3 and stays at that position for a predetermined time (S10). After that, in the order indicated by the arrows in FIG. 6, while blowing air, the main shaft 11 is moved and the operation of staying at that position for a predetermined time is performed. That is, the main shaft 11 is sequentially moved to the midpoint position between the position P4 (S11), the position P5 (S12), the position P6 (S13), and the position P7 and the position P8, stopped at each position for a predetermined time, and then moved to the next position.

[0052] Regarding S10 to S14, not only the movement in the XY direction but also the movement in the Z direction is performed following the tilt angle of the holding device 41 so as to keep the distance between the air outlet 121 (nozzle tip) of the air blow portion 87 and the holding device 41 constant. That is, when the holding device 41 is tilted to the state of slanting downward to the left in FIG. 3(a), as the position on the left side is reached, the nozzle tip position is gradually lowered along the tilt angle of the holding device 41.

[0053] When the air blow reaches the midpoint between position P7 and position P8, the air blowing by the air blow unit 87 is stopped (S15). Then, the main shaft 11 is raised in the Z-axis direction and retracted from the holding device 41 (S16). After that, the holding device 41 is returned to the horizontal direction (S17). Raising the main shaft 11 and returning the holding device 41 horizontally in this way is to prevent interference between the main shaft 11 and other members.

[0054] Next, the tool stored in the tool magazine 70 at S4 is taken out (S18). That is, the tool that has been used is chucked again by the main shaft 11. Then, the main shaft 11 is rotated (S19), and the main shaft 11 and the holding device 41 are relatively moved to the return position stored at S1 (S20). And the interrupted machining operation is resumed. Air can be efficiently blown against the bolt position exposed on the surface of the holding device 41, reducing the chips deposited on this part and reducing the labor of cleaning by the user after machining is completed.

[0055] Here, in this embodiment, the direction in which the holding device 41 is tilted in the cleaning mode is the direction in which the side opposite to the tool magazine 70 is downward. This is to make the chips fly to the side opposite to the tool magazine 70. For example, when the holding device 41 is in the center of the machining chamber and the tool magazine 70 is on the right side, if the holding device 41 is tilted to a state where it slopes downward to the left, when air is blown against the holding device 41, the chips will fly to the left, so that the deposition of chips on the tool magazine 70 can be suppressed.

[0056] Also, if the holding device 41 is inclined such that the side opposite to the tool magazine 70 is downward, in other words, the tool magazine 70 side is upward, the second support portion 53b of the first rotation mechanism 50 becomes a shield between the holding device 41 and the tool magazine 70, and chips can be less likely to fly onto the tool magazine 70. The inclination direction of the holding device 41 in the cleaning mode is preferably a direction in which at least a part of the support mechanism and the rotation mechanism, like the second support portion 53b, becomes a shield with respect to the tool magazine, and the inclination angle is preferably 5° or more and 45° or less with respect to the horizontal direction. In particular, it is preferable to incline the holding device 41 so that the portion gripped by the spindle 11 of the tool placed on the tool magazine 70 is hidden by the shield when viewed from the horizontal direction (X direction).

[0057] In the above-described embodiment, the cleaning mode is performed with the holding device 41 rotated and inclined around the b-axis. However, the cleaning operation may be performed with the holding device 41 rotated and inclined with respect to other rotation axes. Also, when the tool magazine is not in the processing chamber, the cleaning mode may be performed by inclining the holding device 41 in the same manner as described above, or the cleaning mode may be performed by inclining the holding device 41 with respect to other directions or other rotation axes. Further, by inclining the holding device 41 with respect to the horizontal direction during the execution of the cleaning mode, for example, it is easier for the user to drop the chips adhering to the holding device 41 with a brush or the like during finishing.

[0058] Also, in the cleaning mode described above, after blowing air toward the tools stored in the tool magazine 70, air may be blown also toward the plurality of bolts 420a and 440a of the holding device 41, or air may be blown toward the tools stored in the tool magazine 70 after blowing air toward the plurality of bolts 420a and 440a. In any case, if air is blown toward the plurality of bolts 420a and 440a, it is possible to make it difficult for chips to be caught when performing the attachment / detachment operation of the plurality of bolts 420a and 440a. Further, in the cleaning mode, air may be blown toward at least any one of the plurality of bolts 420a and 440a with the holding device 41 rotated and tilted. That is, if it is possible to make it difficult for chips to be caught by the plurality of bolts 420a and 440a, the cleaning mode may be performed at any timing.

[0059] For example, the timing for executing the above-described cleaning mode may be an arbitrary timing by the user or a predetermined timing such as at the end of processing. When the material of the workpiece is resin, it is particularly preferable to execute the cleaning mode. This is because, in the case of resin, it is easily aggregated by static electricity and then becomes difficult to remove. For example, the cleaning mode may be executed a plurality of times during the processing of one workpiece. Further, when there are a plurality of processing modes for the processing of one workpiece, the cleaning mode may be executed for each of the processing modes or a plurality of times in one processing mode. Conventionally, there has also been a configuration in which a static eliminator is provided for this purpose, but if the cleaning mode as in the present embodiment is executed, such a static eliminator can be omitted.

[0060] On the one hand, when the workpiece is made of a material other than resin such as zirconia, the frequency of the cleaning mode may be set lower than that in the case of resin. This is because the cleaning mode takes a certain amount of time, and frequent execution of the cleaning mode will reduce productivity. Therefore, when the material of the workpiece is other than resin, it is preferable to reduce the frequency of executing the cleaning mode, for example, by executing the cleaning mode only at the end of processing. Note that the frequency of executing the cleaning mode may be selectable according to the type of workpiece.

[0061] By executing the cleaning mode at an arbitrary timing or a predetermined timing as described above, it is possible to prevent excessive accumulation of chips on the holding device 41. Further, by tilting the holding device 41 and blowing air, the chips can be efficiently removed in each single cleaning mode.

[0062] As described above, in this embodiment, in a processing apparatus that fixes a workpiece with a fastener such as a bolt and performs processing by rotating a holding device 41 that holds the workpiece, by executing the cleaning mode for the fastener with the holding device 41 tilted, the chips can be efficiently removed by a simple method. And it is easy to reduce the amount of chips deposited before attaching and detaching the workpiece. Such a cleaning mode may be incorporated into an existing processing apparatus having the above-described configuration as a control method or program of the processing system.

[0063] [Chip dust collection] Next, a configuration for collecting chips blown away in the cleaning mode as described above and chips generated during processing will be described with reference to FIG. 1 and FIGS. 8(a) to 13(b). As shown in FIG. 1 described above, the processing apparatus 1000 of the present embodiment is connected to a dust collector 300. The processing apparatus 1000 and the dust collector 300 are connected via a hose 301 and a dust collection duct 110. The dust collector 300 is driven at least during the processing operation to collect chips generated during the processing operation. Note that it is also driven during the execution of the above-described cleaning mode. However, when the operation of the dust collector 300 is not interlocked with the operation of the processing apparatus 1000 and is driven separately by an operator's operation, the operator may operate the dust collector 300 as appropriate.

[0064] Further, the processing apparatus 1000 includes a processing machine 100 and an exterior cover 101 that houses the processing machine 100. As shown in FIGS. 8(a) to 9(b), the processing machine 100 has a housing portion 130 that houses therein a main shaft 11, a holding device 41, a tool magazine 70, etc., and forms a processing space 140 in which processing is performed by a tool. In the present embodiment, a dust collection port 131 to which the dust collection duct 110 is connected is provided on the bottom surface 132 of the housing portion 130. That is, in the present embodiment, the dust collection port 131 is provided on the bottom surface 132 in the vertical direction instead of on the back side of the apparatus. The dust collection port 131 is configured by making a plurality of holes in sheet metal, but it may be in a mesh shape. Thereby, even if a tool, a bolt, or the like drops onto the bottom surface 132, it can be prevented from entering the dust collection port 131.

[0065] Further, the dust collection port 131 is provided at a position where at least a part thereof overlaps with the holding device 41 in the home position when viewed from the vertical direction. The home position of the holding device 41 is the position where the holding device 41 is located at the start of processing with respect to the XY direction, and is the origin position to which it returns at the end of processing or during interruption. In the present embodiment, when the housing portion 130 is viewed from the vertical direction, the home position is set at a position substantially in the center in the X-axis direction and on the front side of the center in the Y-axis direction. FIGS. 8(a) and (b) show a state where the holding device 41 is located in the home position with respect to the XY direction, and the dust collection port 131 is formed substantially directly below the holding device 41 in the home position.

[0066] Note that the position of the dust collection port 131 does not have to be directly below as long as it is below the holding device 41, and it may be displaced in any of the front, rear, left, or right directions. However, in order to efficiently collect chips and the like generated by the processing of the workpiece held by the holding device 41, it is preferable that the dust collection port 131 is provided at a position where at least a part thereof overlaps with the holding device 41 in the home position when viewed from the vertical direction.

[0067] In the present embodiment, inclined surfaces 133 and 134 that incline downward from the end of the housing portion 130 toward the dust collection port 131 are provided on the bottom surface 132 of the housing portion 130 in which the dust collection port 131 is formed. First, as shown in FIGS. 8(a) and (b), the inclined surface 133 is provided below the tool magazine 70 so as to incline downward from the right side wall 130a of the housing portion 130 toward the dust collection port 131.

[0068] FIG. 8(a) is a view showing the case where the tool magazine 70 side of the holding device 41 is tilted to the maximum so as to be high. FIG. 8(b) is a view showing the case where the tool magazine 70 side of the holding device 41 is tilted to the maximum so as to be low. The inclined surface 133 is formed so as not to interfere with the holding device 41 in any state. Since chips may accumulate in a lump at the lower part of the tool magazine 70 located in the machining space 140, the inclined surface 133 is provided below the tool magazine 70. By providing the inclined surface 133 only on one side in the left-right direction (X-axis direction) of the accommodating portion 130, the machining space 140 can be effectively utilized, and while the apparatus is miniaturized, it becomes easier to move the chips toward the dust collecting port 131.

[0069] Also, in the present embodiment, as shown in FIG. 10, an inclined surface 134 is also provided on the front side of the accommodating portion 130. FIG. 10 is a perspective view of the accommodating portion 130 cut by inserting a cylinder including a circle B as viewed from the back side. Therefore, the left front side in FIG. 10 is the back side, and the right rear side is the front side. The inclined surface 134 is provided so as to incline downward from the front side wall 130b of the accommodating portion 130 toward the dust collecting port 131.

[0070] Note that an opening 141 that enables access to the machining space 140 is formed in the front side wall 130b when the opening / closing door 102 (see FIG. 1) of the exterior cover 101 is opened, and the inclined surface 134 is provided below the opening 141. The inclined surface 134 is also formed so as not to interfere with the holding device 41 in any of the states shown in FIGS. 8(a) and 8(b). Also, by providing the inclined surface 134 only on one side in the front-rear direction (Y-axis direction) of the accommodating portion 130, the machining space 140 can be effectively utilized, and while the apparatus is miniaturized, it becomes easier to move the chips toward the dust collecting port 131.

[0071] Next, the dust collecting duct 110 connected to the dust collecting port 131 will be described. The dust collecting duct 110 is provided such that the position of the connection port 111 connected to the hose 301 of the dust collector 300 can be switched in either the left or right direction when the exterior cover 101 as a housing is viewed from the front. Specifically, as shown in FIG. 1, the dust collecting duct 110 extends from the lower side of the exterior cover 101 in either the left or right direction when the exterior cover 101 is viewed from the front, and at least the connection port 111 connected to the hose 301 of the dust collector 300 protrudes from the exterior cover 101 when viewed from above. That is, as shown in FIG. 1, the dust collecting duct 110 is disposed in the gap between the lower surface of the exterior cover 101 formed by the plurality of legs 103 and the installation surface. The dust collecting duct 110 can be attached to the housing portion 130 by changing the direction in which it protrudes from the exterior cover 101, as shown in FIGS. 9(a) and 9(b). Also, as shown in FIG. 12, the dust collecting duct 110 is provided in the housing portion 130 such that the tip side including the connection port 111 of the dust collecting duct 110 protrudes from the exterior cover 101 when viewed from above.

[0072] In the case of this embodiment, as shown in FIG. 11, the dust collecting duct 110 is fixed to the lower surface of the housing portion 130 by a plurality of screws 142. A flange 113 is provided around the covering portion 112 with an upward opening so as to cover the entire dust collecting port 131 at the base end portion of the dust collecting duct 110. By fastening the flange 113 and the lower surface of the housing portion 130 with a plurality of screws 142, the dust collecting duct 110 is fixed to the lower surface of the housing portion 130. That is, the covering portion 112 as a receiving portion is connected to the bottom surface 132 of the housing portion 130. The covering portion 112 and the flange 113 are formed to be symmetric with respect to an imaginary line passing through the central portion in the front-rear direction and parallel to the left-right direction. Even if the mounting direction is reversed left and right, the dust collecting port 131 can be covered by the covering portion 112, and the positions of the screw holes of the flange 113 (mounting portion) and the screw holes provided on the lower surface of the housing portion 130 are made to coincide.

[0073] Also, it may be configured as a mechanism for varying the length of the duct portion 114. It can be attached so as to protrude forward or backward, and the position of the connection port 111 can be adjusted to a position where it is easy to connect the hose. That is, when viewing the processing apparatus 1000 from the front, the position where the connection port 111 protrudes from the exterior cover 101 can be switched not only left and right but also forward and backward. The arrangement of the fastening portion by the screws of the flange 113 is square, and it can be attached even when rotated by 90°. When attaching so that the duct extends forward and backward, as a mechanism for varying the length of the duct portion 114, the position may be adjusted. Also, the position where the connection port 111 protrudes from the exterior cover 101 may be set to an arbitrary position around the exterior cover 101. In this case, for example, the shape of the flange 113 is circular, and by making the position of the fastening portion by the screws point-symmetrical with respect to the opening center on the dust collection port 131 side of the covering portion 112, the protruding direction of the connection port 111 may be set to an arbitrary position around the center of the dust collection port 131.

[0074] FIG. 9(a) is a view showing the dust collection duct 110 arranged to protrude to the left when viewed from the front, and FIG. 9(b) is a view showing the dust collection duct 110 arranged to protrude to the right when viewed from the front. In either case, the dust collection duct 110 is fixed to the housing portion 130 such that the connection port 111 provided at the tip side of the dust collection duct 110 protrudes from the exterior cover 101. Note that the dust collection duct 110 may be fixed so as to be rotatable about the Z-axis direction with respect to the housing portion 130, regardless of the fixing method as described above. In this case, for example, the dust collection duct 110 is rotated with the leg portion 103 in the rotation direction of the dust collection duct 110 removed.

[0075] Further, as shown in FIGS. 9(a) and 9(b), the accommodating portion 130 is open at the top so that the main shaft 11 can be moved in the X-axis direction by the second moving mechanism 20 (FIG. 2), and roll curtains 135a and 135b are provided to close the gap between this opening and the main shaft 11. The roll curtains 135a and 135b are arranged on both sides of the main shaft 11 in the X-axis direction (longitudinal direction) and are interlocked with the movement of the main shaft 11 in the X-axis direction. Specifically, the ends of the roll curtains 135a and 135b on the main shaft 11 side are connected to the main shaft 11, and the opposite ends are connected to winding portions 136a and 136b capable of winding and pulling out the roll curtains 135a and 135b. Further, at both ends of the roll curtains 135a and 135b in the Y-axis direction (width direction) at positions where they do not interfere with the main shaft 11, pressing portions 137a and 137b made of, for example, a metal plate are provided to prevent the roll curtains 135a and 135b from floating.

[0076] When the main shaft 11 moves in one direction in the X-axis direction, such roll curtains 135a and 135b cause one side roll curtain to be wound around the winding portion while the other side roll curtain is pulled out from the winding portion. At this time, since both ends in the width direction are suppressed by the pressing portions 137a and 137b, this operation can suppress the generation of a gap between the roll curtains 135a and 135b and the opening of the accommodating portion 130. By providing the roll curtains 135a and 135b at the moving position of the main shaft 11 in this way, it is possible to suppress the scattered chips generated by processing from flying outside from the main shaft 11 side of the accommodating portion 130.

[0077] Note that, as the material of the roll curtains 135a and 135b, a resin such as PET (polyethylene terephthalate) is used. Further, the roll curtains 135a and 135b are made of a transparent film containing an antistatic material. If the roll curtains 135a and 135b are transparent, the processing chamber can be viewed from above, and it is easy to grasp the processing state.

[0078] The dust collection duct 110 has a covering portion 112 on the base end side, a connection port 111 provided on the tip end side, and a duct portion 114 that communicates the connection port 111 and the covering portion 112. As shown in FIG. 11, the covering portion 112 has a rectangular shape with an open upper side, and the duct portion 114 is provided on the side surface of the covering portion 112 so as to communicate with the space inside the covering portion 112. The duct portion 114 is formed in a rectangular parallelepiped shape that is narrower than the width of the covering portion 112 in the front-rear direction and also narrower in the width in the height direction. The connection port 111 is provided in both the front and rear directions of the tip end portion of the duct portion 114, and opens to the front side and the rear side, respectively. That is, in the present embodiment, two connection ports 111 with different orientations are provided in the dust collection duct 110.

[0079] When connecting the hose 301 of the dust collector 300, the hose 301 is connected to one of the front and rear connection ports 111, and the other connection port 111 is blocked by a blocking member 115 such as a rubber stopper. For example, in FIGS. 9(a), (b), and 11, the rear connection port 111 is blocked by the blocking member 115, and the hose 310 is connected to the front connection port 111. The front and rear connection ports 111 have the same shape and can be blocked by a common blocking member 115, and a common hose 301 can be connected. Therefore, when connecting the hose 301 to the rear connection port 111, the front connection port 111 is blocked by the blocking member 115.

[0080] Note that the connection port 111 may be two or more. For example, in addition to the front and rear, connection ports 111 may be provided on the front end surfaces in the left-right direction so as to open in the protruding direction (left direction or right direction) of the dust collection duct 110.

[0081] Figs. 9(a) and (b) are cross-sectional views in which the dust collection duct 110 is connected to the lower surface of the housing portion 130. The dust collection duct 110 is fixed to the lower surface of the housing portion 130 via a flange 113 so as to cover the entire dust collection port 131 by means of an opening in which a covering portion 112 is formed upward. The duct portion 114 is disposed in a substantially horizontal direction such that the upper surface thereof is shifted downward from the flange 113. Thereby, when the flange 113 is fixed to the lower surface of the housing portion 130, interference between the upper surface of the duct portion 114 and the lower surface of the housing portion 130 is prevented. Note that the lower surface of the duct portion 114 is set to substantially the same height as the lower surface of the covering portion 112. The connection port 111 is provided at the tip of the duct portion 114, and its lower end is provided so as to be positioned above the lower surface of the duct portion 114. Thereby, when the hose 301 is connected, an unreasonable force is not applied to the connection port 111 due to interference between the hose 301 and the installation surface or the like. Thus, in the present embodiment, when the dust collection duct 110 is provided on the lower surface of the housing portion 130, the vertical positional relationships of the covering portion 112, the duct portion 114, and the connection port 111 are appropriately regulated.

[0082] According to the present embodiment as described above, regardless of the positional relationship between the processing device 1000 and the dust collector 300, it is possible to facilitate the connection between the dust collection duct 110 and the hose 301 of the dust collector 300. That is, in the present embodiment, the dust collection duct 110 connected to the dust collection port 131 is provided on the lower surface of the housing portion 130, and the tip portion including the connection port 111 of the dust collection duct 110 protrudes outside the exterior cover 101. At this time, although the entire connection port 111 protrudes outside, by making at least a part of the connection port 111 protrude outside, it is possible to facilitate the connection between the hose 301 and the connection port 111. Further, the dust collection duct 110 can be selectively fixed to the lower surface of the housing portion 130 so as to protrude either to the left or right. Therefore, the hose 301 of the dust collector 300 can be selectively connected to either the left or right of the processing device 1000, and regardless of the positional relationship between the processing device 1000 and the dust collector 300, it is possible to facilitate the connection between the dust collection duct 110 and the hose 301 of the dust collector 300. Further, since the covering portion 112 is fixed to the lower surface of the housing portion 130 and the duct portion 114 passes between the two leg portions 103, it is easy to switch the direction of the dust collection duct 110.

[0083] Particularly, in the case of the present embodiment, since the connection port 111 is provided in both the front and rear directions, the hose 301 of the dust collector 300 can be selectively connected to positions in four directions: front, rear, left, and right. Therefore, the degree of freedom in the installation location of the dust collector 300 and the connection location of the hose 301 is increased, and regardless of the positional relationship between the processing device 1000 and the dust collector 300, it is possible to more easily connect the dust collection duct 110 and the hose 301 of the dust collector 300.

[0084] Also, when the hose 301 is connected to the front connection port 111, the operator of the processing device 1000 can remove this hose 301 from the connection port 111, open the front opening / closing door 102, and put the hose 301 into the processing space 140, thereby facilitating the cleaning of the processing space 140 using this hose 301.

[0085] [Another example of the dust collection duct] In the above-described embodiment, the dust collection duct 110 having a plurality of connection ports 111 has been described. However, as shown in FIGS. 13(a) and 13(b), the connection port 111 may be rotatable. For example, even if there is one connection port 111, the direction in which the connection port 111 is open may be changed by rotating the connection port 111. That is, the dust collection duct 110A shown in FIGS. 13(a) and 13(b) includes a processing machine side duct portion 116 fixed to the housing portion 130 of the processing machine 100, and a connection side duct portion 117 having a connection port 111 and rotatably connected to the processing machine side duct portion 116 so that the direction of the connection port 111 can be changed. The processing machine side duct portion 116 corresponds to the above-described covering portion 112 and the duct portion 114, and is configured to shorten the duct portion 114 and eliminate the connection port 111. Further, a cylindrical portion 116a for rotatably connecting the connection side duct portion 117 is provided at the tip of the processing machine side duct portion 116.

[0086] The connection side duct portion 117 includes a first cylindrical portion 117a detachably fixed to the cylindrical portion 116a, and a second cylindrical portion 117b formed so as to be bent at a substantially right angle from the first cylindrical portion 117a and having a connection port 111. For the connection side duct portion 117, for example, if the first cylindrical portion 117a is fixed to the cylindrical portion 116a with the connection port 111 facing either the front or the rear, the direction of the connection port 111 can be selected in two directions, the front and the rear. Also, regardless of the direction of the connection port 111, it is possible to make the direction upward or the like, and the degree of freedom in connecting the hose 301 can be increased. Regarding other configurations, such as the point that the dust collection duct 110A can be selectively fixed to the lower surface of the housing portion 130 so as to protrude in either the left or right direction from the exterior cover 101, it is the same as the above-described dust collection duct 110.

[0087] <Other Embodiments> In the above-described embodiment, the housing for housing the processing machine 100 is the exterior cover 101. However, the exterior cover may also serve as the housing portion that forms the processing space.

Description of Reference Numerals

[0088] 11 ··· Main shaft 20 ··· Second moving mechanism (moving device) 30 ··· Third moving mechanism (moving device) 41 ··· Holding device 60 ··· Second rotating mechanism (rotating device) 70 ··· Tool magazine 87 ··· Air blow part 100 ··· Processing machine 101 ··· Exterior cover (housing) 102 ··· Opening / closing door (door) 110, 110A ··· Dust collection duct 111 ··· Connection port 112 ··· Cover part (receiving part) 113 ··· Flange (mounting part) 114 ··· Duct part 115 ··· Closing member 116 ··· Processing machine side duct part 117 ··· Connection side duct part 130 ··· Storage part 131 ··· Dust collection port 132 ··· Bottom surface 133, 134 ··· Inclined surface 140 ··· Processing space 300 ··· Dust collector 301 ··· Hose 1000 ··· Processing device W ··· Workpiece

Claims

【Claim 1】 a spindle for machining a workpiece, a housing for accommodating the spindle, a dust collection duct connected to a hose of the dust collector so as to collect chips generated by machining with the spindle by the dust collector, and the dust collection duct has a receiving portion for receiving chips generated by machining, a connection port connected to the hose of the dust collector, and a duct portion for communicating the receiving portion and the connection port, and a machining apparatus, characterized in that the position of the connection port connected to the hose of the dust collector is switchable, and the receiving portion is connected to the lower side of the housing.

Images