Machine tool, control method, and computer program product

Abstract

The present application provides a machine tool, a control method, and a computer program product. The machine tool includes a first processing machine having a first tool that processes an object having a plurality of tooth portions and a first movement mechanism that moves the first tool, and a control device that controls the first processing machine. The first tool has a tool body that rotates around a center axis, a sensor that detects phases of the plurality of tooth portions, and a sensor mounting portion that is located on one side of the tool body in an axial direction of the center axis and on which the sensor is mounted. The control device performs a detection process that controls the first processing machine to detect the phases of the plurality of tooth portions by the sensor and a processing process that controls the first processing machine to process the object by the first tool based on a result of the detection process. In the detection process, the control device sets a posture of the first tool to a first posture in which the center axis is inclined with respect to a horizontal direction. In the processing process, the control device sets the posture of the first tool to a second posture in which the center axis is inclined with respect to a vertical direction.

Description

Technical Field

[0001] This invention relates to a machine tool, a control method, and a program. Background Technology

[0002] There is a known machine tool that houses a machining machine with tools within a housing (e.g., see Patent Document 1).

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2025-32751 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] In the aforementioned machine tools, it is desirable to improve the workability of operators who use the machine tools for operations and those who perform maintenance on the machine tools.

[0008] In view of the above, one of the objectives of the present invention is to provide a machine tool, control method, and program that can improve the operator's workability.

[0009] Solution for solving the problem

[0010] One embodiment of the machine tool of the present invention is a machine tool for machining gears on an object, comprising: a first machining machine having a first tool for machining the object having a plurality of teeth and a first moving mechanism for moving the first tool; a housing having a first receiving portion for accommodating the first machining machine therein; and a control device for controlling the first machining machine. The first tool has: a tool body rotatable about a central axis; a sensor capable of detecting the phase of the plurality of teeth; and a sensor mounting portion located axially along the central axis, closer to the tool body, and on which the sensor is mounted. The control device is capable of performing: a detection process, controlling the first machining machine and detecting the phase of the plurality of teeth by the sensor; and a machining process, controlling the first machining machine based on the result of the detection process and machining the object using the first tool. In the detection process, the control device sets the posture of the first tool to a first posture. In the machining process, the control device sets the posture of the first tool to a second posture. The second posture is a posture in which the central axis is inclined relative to the vertical direction. The first posture is a posture in which the central axis is inclined relative to the horizontal direction.

[0011] One embodiment of the machine tool of the present invention is a machine tool for machining an object, comprising: a first support portion capable of supporting the object; a second support portion capable of supporting the object; a first machining machine having a first tool for machining the object supported by the first support portion; a second machining machine having a second tool for machining the object supported by the second support portion; a moving device capable of moving the object between a position supported by the first support portion and a position supported by the second support portion; a housing housing the first support portion, the second support portion, the first machining machine, the second machining machine, and the moving device therein; and a control device for controlling the first machining machine and the second machining machine. The housing has: a first receiving portion housing the first machining machine; a second receiving portion housing the second machining machine; an opening spanning the wall portion constituting the first receiving portion and the wall portion constituting the second receiving portion; and a door member blocking the opening portion in a manner that allows it to be opened. The control device has: a control device body; and an operating panel capable of moving relative to the control device body.

[0012] One aspect of the control method of the present invention is a control method for a machine tool that performs gear machining on an object. The machine tool includes: a first machining machine having a first tool for machining the object having a plurality of teeth and a first moving mechanism for moving the first tool; a housing having a first receiving portion for housing the first machining machine therein; and a control device for controlling the first machining machine. The first tool has: a tool body capable of rotating about a central axis; a sensor capable of detecting the phase of the plurality of teeth; and a sensor mounting portion located axially along the central axis, closer to the tool body, and on which the sensor is mounted. The control method includes: a detection process, controlling the first machining machine and detecting the phase of the plurality of teeth by the sensor; and a machining process, controlling the first machining machine based on the result of the detection process and machining the object using the first tool. The control method includes: in the detection process, setting the posture of the first tool to a first posture; and in the machining process, setting the posture of the first tool to a second posture. The second posture is a posture in which the central axis is inclined relative to the vertical direction. The first posture is a posture in which the central axis is inclined relative to the horizontal direction.

[0013] One embodiment of the program of the present invention enables a computer to execute the above-described control method.

[0014] Invention Effects

[0015] According to one aspect of the present invention, the operability of the machine tool can be improved by the operator. Attached Figure Description

[0016] Figure 1 This is a perspective view of a machine tool representing one implementation method.

[0017] Figure 2 This is a perspective view of a machine tool representing one embodiment, and it is derived from... Figure 1 Images of machine tools viewed from different angles.

[0018] Figure 3 It is a perspective view of a machine tool according to one embodiment and a view showing the door component in an open state.

[0019] Figure 4 This is a partial sectional view of a machine tool representing one embodiment.

[0020] Figure 5 This is a diagram showing a portion of a machine tool according to one embodiment and a diagram showing a portion of the detection process steps.

[0021] Figure 6 This is a block diagram illustrating a portion of a machine tool in one implementation.

[0022] Figure 7 This is a flowchart illustrating an example of the processing steps of a control device in a machine tool according to one embodiment.

[0023] Figure 8 It is a diagram showing a portion of a machine tool according to one embodiment and a diagram showing a portion of the machining process steps.

[0024] Figure 9 This is a diagram showing a portion of the machine tool used in the comparative example and a diagram showing a portion of the detection process steps in the comparative example. Detailed Implementation

[0025] In the accompanying drawings, the XYZ coordinate system is appropriately represented as a three-dimensional orthogonal coordinate system. In the XYZ coordinate system, the Z-axis direction is the up-down direction. The side to which the arrow of the Z-axis points (+Z side) is the top side, and the opposite side (-Z side) is the bottom side. In the following description, the Z-axis direction is referred to as the "up-down direction Z". The X-axis and Y-axis directions are horizontal directions orthogonal to the up-down direction. The X-axis and Y-axis directions are mutually orthogonal. In the following description, the X-axis direction is referred to as the "front-back direction X", and the Y-axis direction is referred to as the "left-right direction Y". The side to which the arrow of the X-axis points in the front-back direction X (+X side) is called the "front side", and the opposite side (-X side) is called the "back side". The side to which the arrow of the Y-axis points in the left-right direction Y (+Y side) is called the "left-right direction one side", and the opposite side (-Y side) is called the "left-right direction other side". In the following implementation, the forward / backward direction X corresponds to the "first horizontal direction", and the left / right direction Y corresponds to the "second horizontal direction" that intersects with the first horizontal direction.

[0026] Figures 1 to 3 The machine tool 100 shown in this embodiment is a machine tool for machining gears on an object W. More specifically, in this embodiment, the machine tool 100 performs gear cutting and chamfering on the object W to manufacture gears. In this embodiment, the object W is a plate-shaped component before machining. The object W may be a cylindrical component or a cylindrical component before machining. It should be noted that in this specification, "a component is plate-shaped" includes not only the case where the component is strictly plate-shaped, but also the case where the component is approximately plate-shaped. In this specification, "a component is cylindrical" includes not only the case where the component is strictly cylindrical, but also the case where the component is approximately cylindrical. In this specification, "a component is cylindrical" includes not only the case where the component is strictly cylindrical, but also the case where the component is approximately cylindrical. The object W is made of metal. Gear cutting is a machining process that cuts a portion of the outer peripheral surface of an object W to create multiple teeth Wa on the object W. Chamfering is a machining process that chamfers the edges of the multiple teeth Wa. In this embodiment, the machine tool 100 is an NC machine tool that performs machining of the object W based on a numerical control (NC) program.

[0027] like Figures 1 to 3 As shown, the machine tool 100 includes a housing 10 and a control device 20. (As indicated...) Figure 4As shown, the machine tool 100 includes a moving device 40, a gear cutting machine 70, a chamfering machine 80, a support portion 76, a support portion 86, and a support portion 90. In this embodiment, the chamfering machine 80 corresponds to the "first machine tool". The gear cutting machine 70 corresponds to the "second machine tool". The support portion 86 corresponds to the "first support portion". The support portion 76 corresponds to the "second support portion".

[0028] The housing 10 internally accommodates the moving device 40, the gear cutting machine 70, the chamfering machine 80, and the supports 76, 86, and 90. For example... Figure 1 As shown, the housing 10 is a generally rectangular box-shaped structure that is longer in the left-right direction (Y). The housing 10 has a main body 11, a protruding receiving portion 12, and a replacement portion 13. The main body 11 is located on the ground. In this embodiment, the main body 11 is a generally rectangular box-shaped structure that is longer in the left-right direction (Y). Figure 4 As shown, the main body 11 houses the gear cutting machine 70. That is, in this embodiment, the main body 11 is equivalent to a "second housing" that houses the gear cutting machine 70, which is a second processing machine.

[0029] The protruding receiving portion 12 is located on the front side (+X side) of the main body portion 11. The protruding receiving portion 12 protrudes forward from the main body portion 11 on the front side (+X side). More specifically, the protruding receiving portion 12 protrudes forward from a portion of the main body portion 11 on the other side (-Y side) in the left-right direction. The protruding receiving portion 12 is generally rectangular box-shaped. The protruding receiving portion 12 has an opening on the rear side (-X side). The internal space of the protruding receiving portion 12 is connected to the internal space of the main body portion 11 via the rear opening. The protruding receiving portion 12 houses the chamfering machine 80. That is, in this embodiment, the protruding receiving portion 12 corresponds to a "first receiving portion" that houses the chamfering machine 80, which is the first processing machine. Figure 1 As shown, the protruding receiving portion 12 extends in the vertical direction Z. The lower end of the protruding receiving portion 12 is located above the lower end of the main body portion 11. The protruding receiving portion 12 is configured to separate upward from the ground where the machine tool 100 is located.

[0030] The replacement part 13 is located on the other side (-Y side) in the left-right direction of the main body 11. The replacement part 13 protrudes from the main body 11 to the other side in the left-right direction. The replacement part 13 is generally rectangular box-shaped. The replacement part 13 has an opening 13a that opens to the other side in the left-right direction. The lower end of the replacement part 13 is located above the lower end of the main body 11. The replacement part 13 is configured to separate upward from the ground where the machine tool 100 is located.

[0031] like Figure 3As shown, the housing 10 has a hole 14. The hole 14 spans the wall portion constituting the main body portion 11 and the wall portion constituting the protruding receiving portion 12. The hole 14 has a first portion 14a and a second portion 14b. The first portion 14a is the portion of the hole 14 provided in the wall portion constituting the protruding receiving portion 12. The first portion 14a is provided in the wall portion constituting the protruding receiving portion 12 located on one side (+Y side) in the left-right direction. The first portion 14a opens to one side in the left-right direction. The first portion 14a is rectangular in shape when viewed from the left-right direction Y. The first portion 14a connects the interior of the protruding receiving portion 12 to the exterior of the housing 10. The second portion 14b is the portion provided in the wall portion constituting the main body portion 11. The second portion 14b is provided in the wall portion constituting the main body portion 11 located on the front side (+X side) in the wall portion constituting the main body portion 11. The second portion 14b opens to the front side. The second portion 14b is rectangular in shape when viewed from the front-rear direction X. The second portion 14b connects the interior of the main body portion 11 to the exterior of the housing 10. The end of the second part 14b on the other side (-Y side) in the left-right direction is connected to the end of the first part 14a on the rear side (-X side).

[0032] like Figure 2 As shown, the housing 10 has a door member 30 that blocks the opening 14 in an openable manner. In this embodiment, the door member 30 has a first door portion 31 and a second door portion 32. The first door portion 31 blocks the first portion 14a in an openable manner. In this embodiment, the first door portion 31 is an opening and closing door connected to the front edge (+X side) of the first portion 14a via a hinge (not shown). The first door portion 31 has a window portion 31b and a handle portion 31c. The operator P can visually confirm the interior of the protruding receiving portion 12 through the window portion 31b. The operator P can open the first door portion 31 by pulling the handle portion 31c to one side in the left-right direction (+Y side), causing the first door portion 31 to rotate around the hinge (not shown).

[0033] The second door 32 blocks the second part 14b in a manner that allows it to be opened. In this embodiment, the second door 32 is a sliding door that can move in the left-right direction (Y). The second door 32 has a window 32b and a handle 32c. The operator P can visually inspect the interior of the main body 11 through the window 32b. The operator P can open the second door 32 by pulling the handle 32c to one side in the left-right direction (+Y side), thereby moving the second door 32 to one side in the left-right direction. Figure 2 The diagram shows the state where both the first door section 31 and the second door section 32 are closed. Figure 3 The diagram shows the state where both the first door section 31 and the second door section 32 are open. It should be noted that "operator P" includes operators who use the machine tool 100 for work, as well as operators who perform maintenance on the machine tool 100.

[0034] The moving device 40 is a device capable of moving the object W. For example... Figure 4 As shown, the moving device 40 is located inside the main body 11. The moving device 40 has a rotating part 41 and a plurality of gripping parts 42. The rotating part 41 is located on the other side (-Y side) in the left-right direction inside the main body 11. The rotating part 41 is rotatable about a rotation axis AX extending in the vertical direction Z. The plurality of gripping parts 42 protrude radially outward from the rotating part 41 about the rotation axis AX. The plurality of gripping parts 42 are arranged at equal intervals around the circumference of the rotation axis AX. In this embodiment, four gripping parts 42 are provided. Each gripping part 42 has a pair of arms 42a. The pair of arms 42a extend parallel to each other in a direction orthogonal to the rotation axis AX. The pair of arms 42a are arranged opposite each other in both the direction in which the arms 42a extend radially about the rotation axis AX and the vertical direction Z. The pair of arms 42a can hold the object W by clamping it between the pair of arms 42a. Each gripping part 42 can move in the circumferential direction around the rotation axis AX by rotating the rotating part 41 around the rotation axis AX.

[0035] In this embodiment, the moving device 40 can move the object W between a position supported by the support 76, a position supported by the support 86, and a position supported by the support 90 by rotating the rotating part 41 about the rotation axis AX. In this embodiment, the rotating part 41 rotates counterclockwise about the rotation axis AX when viewed from above.

[0036] Support portions 76, 86, and 90 are capable of supporting the object W. In this embodiment, the circular plate-shaped object W is supported by each of the support portions 76, 86, and 90 with its plate surface facing the vertical direction Z. In other words, in this embodiment, the object W is supported by each of the support portions 76, 86, and 90 with its center line extending in the vertical direction Z. It should be noted that when the object W is cylindrical or cylindrical, the object W is supported by each of the support portions 76, 86, and 90 with its center line extending in the vertical direction Z. In the following description, the center line of the circular plate-shaped, cylindrical, or cylindrical object W is sometimes simply referred to as the center line of the object W. The support portion 76 is located inside the main body portion 11. The support portion 76 protrudes upward from the bottom 11a of the main body portion 11. The bottom 11a is the lower wall portion among the wall portions constituting the main body portion 11. The support portion 76 is located relative to the moving device 40 on the side of the left-right direction Y (+Y side), which intersects the front-back direction X. An object W, transported by the gripping portion 42, is placed on the upper side of the support portion 76. The support portion 76 supports the object W from below. The support portion 76 supports the object W in a position where it can be processed by the gear cutting machine 70. The support portion 76 is rotatable about a rotation axis WR1 extending in the vertical direction Z. The centerline of the object W supported by the support portion 76 coincides with the rotation axis WR1. The object W supported by the support portion 76 rotates about the rotation axis WR1 as the support portion 76 rotates.

[0037] The support portion 86 protrudes upward from the bottom 11a of the main body 11. The support portion 86 is located on one side (front, +X side) in the front-rear direction X relative to the moving device 40. A portion of the front part of the support portion 86 is located within the protruding receiving portion 12. It should be noted that the entire support portion 86 may also be located within the main body 11. An object W, transported by the gripping portion 42, is placed on the upper side of the support portion 86. The support portion 86 supports the object W from below. The support portion 86 supports the object W in a position where it can be processed by the chamfering machine 80. The support portion 86 is rotatable about a rotation axis WR2 extending in the vertical direction Z. The centerline of the object W supported by the support portion 86 coincides with the rotation axis WR2. The object W supported by the support portion 86 rotates about the rotation axis WR2 as the support portion 86 rotates about the rotation axis WR2.

[0038] The support portion 90 protrudes upward from the bottom 13b of the replacement portion 13. The bottom 13b is the lower wall portion among the wall portions constituting the replacement portion 13. The support portion 90 is located on the opposite side (-Y side) of the moving device 40 in the left-right direction Y. The support portion 90 and the support portion 76 clamp the rotating portion 41 of the moving device 40 in the left-right direction Y. The object W transported by the gripping portion 42 and the object W replaced by the operator P are placed on the upper side of the support portion 90. The support portion 90 supports the object W from below. The operator P can remove the object W supported by the support portion 90 through the opening 13a to the outside of the machine tool 100. The operator P can support a new object W on the support portion 90 through the opening 13a, thereby placing the object W into the machine tool 100.

[0039] The tooth cutting machine 70 is a machine for cutting the teeth of an object W supported by the support 76. The tooth cutting machine 70 is located inside the main body 11. The tooth cutting machine 70 has a tooth cutting tool 71 and a moving mechanism 75. In this embodiment, the tooth cutting tool 71 is equivalent to a "second tool". The moving mechanism 75 is equivalent to a "second moving mechanism" that moves the tooth cutting tool 71, which is the second tool.

[0040] The cutting tool 71 is used to perform tooth cutting on an object W supported by the support portion 76. The cutting tool 71 is, for example, a gear hob. In this embodiment, the cutting tool 71 is rotated about a first central axis TR1 extending in a direction intersecting the vertical direction Z, thereby performing tooth cutting on the object W supported by the support portion 76 and rotating about the rotation axis WR1. When the object W is processed by the cutting tool 71, the first central axis TR1 extends along the front-rear direction X when viewed from the vertical direction Z. When the object W is processed by the cutting tool 71, the first central axis TR1 extends in a direction inclined at a predetermined rotation angle relative to the front-rear direction X towards the vertical direction Z. Through tooth cutting, a plurality of teeth Wa are formed on the outer peripheral surface of the object W. The outer peripheral surface of the object W is the radially outer surface of the object W's surface centered on the centerline of the object W.

[0041] The moving mechanism 75 moves the cutting tool 71. The moving mechanism 75 can move the cutting tool 71 in the front-to-back direction (X), the left-to-right direction (Y), and the up-down direction (Z). The moving mechanism 75 can also rotate the cutting tool 71 about an axis (not shown) extending in the left-to-right direction (Y). The moving mechanism 75 can adjust the rotation angle of the cutting tool 71 during cutting. The moving mechanism 75 can be of any structure as long as it can move the cutting tool 71.

[0042] The chamfering machine 80 is a machine for chamfering an object W supported by a support portion 86. The chamfering machine 80 is located inside the protruding receiving portion 12. The chamfering machine 80 has a chamfering tool 81 and a moving mechanism 85. In this embodiment, the chamfering tool 81 is equivalent to a "first tool". The moving mechanism 85 is equivalent to a "first moving mechanism" that moves the chamfering tool 81, which is the first tool.

[0043] The chamfering tool 81 is used to chamfer an object W supported by the support portion 86 and having multiple teeth Wa. The chamfering tool 81 is, for example, a gear hob. More specifically, the chamfering tool 81 is, for example, a chamfering gear hob. In this embodiment, the chamfering tool 81 is rotated about a second central axis TR2 extending in a direction intersecting the vertical direction Z, thereby chamfering the object W supported by the support portion 86 and rotating about the rotation axis WR2. When the object W is processed by the chamfering tool 81, the second central axis TR2 extends in the horizontal direction Y when viewed from the vertical direction Z. When the object W is processed by the chamfering tool 81, the second central axis TR2 extends in a direction inclined at a predetermined rotation angle relative to the horizontal direction Y towards the vertical direction Z. The edges of the multiple teeth Wa of the object W are chamfered through the chamfering process.

[0044] like Figure 5 As shown, the chamfering tool 81 has a base 81a, a tool body 82, a sensor mounting portion 83, and a sensor 84. The base 81a extends axially along the second central axis TR2. In this embodiment, the base 81a is cylindrical with the second central axis TR2 as its center. The tool body 82 is disposed on the base 81a. In this embodiment, the tool bodies 82 are arranged axially along the second central axis TR2, and there are two tool bodies 82a and 82b. The two tool bodies 82a and 82b are, for example, gear hobs centered on the second central axis TR2. The two tool bodies 82a and 82b are spaced apart axially along the second central axis TR2. The base 81a and the two tool bodies 82a and 82b are rotatable about the second central axis TR2.

[0045] The sensor mounting part 83 is connected to one end of the base 81a along the axial direction of the second central axis TR2. The sensor mounting part 83 is located on one side of the tool body 82a, 82b along the axial direction of the second central axis TR2. A sensor 84 is mounted on the sensor mounting part 83.

[0046] Sensor 84 is capable of detecting the phase of multiple teeth Wa of object W. It should be noted that "sensor 84 is capable of detecting the phase of multiple teeth Wa" means that the control device 20 can acquire the phase of the multiple teeth Wa based on the signal output from sensor 84. When detecting the phase of the teeth Wa, sensor 84 is located radially about the rotation axis WR2, outside the object W supported by support 86, and is in a state of facing the multiple teeth Wa in this radial direction. In this radially facing state, sensor 84 can detect the phase of the multiple teeth Wa by rotating the object W around the rotation axis WR2. In this embodiment, sensor 84 is located in front of object W (+X side), and can detect the phase of the multiple teeth Wa in a state of facing object W in the front-rear direction X. In this embodiment, sensor 84 is a proximity sensor. Sensor 84 becomes ON when facing the teeth Wa of object W rotating around the rotation axis WR2. When sensor 84 is positioned opposite the valley between adjacent teeth Wa of an object W rotating about the rotation axis WR2, the control device 20 can acquire the phase of multiple teeth Wa based on signals output from sensor 84 indicating that sensor 84 is on / off. Sensor 84 can be any type of sensor as long as it can detect the phase of multiple teeth Wa.

[0047] In this embodiment, when the sensor 84 is observed in the front-rear direction X opposite to the object W during the detection process S41 described later, it is positioned offset from the second central axis TR2. The sensor 84 is mounted on the rear (-X side) surface of the sensor mounting portion 83 at an end near the base 81a along the axial direction of the second central axis TR2. The sensor 84 is mounted on the radially outer end of this end portion centered on the second central axis TR2. In the processing process S42 described later, the portion of the sensor 84 mounted on the rear surface of the sensor mounting portion 83 becomes a portion lower than the second central axis TR2.

[0048] The moving mechanism 85 moves the chamfering tool 81. The moving mechanism 85 allows the chamfering tool 81 to move in the front-to-back (X) direction, the left-to-right (Y) direction, and the up-down (Z) direction. The moving mechanism 85 also allows the chamfering tool 81 to rotate about a rotation axis WR3 extending in the front-to-back (X) direction. The rotation axis WR3 passes through the center of the two tool bodies 82a and 82b along the second central axis TR2. The moving mechanism 85 can adjust the rotation angle of the chamfering tool 81 during chamfering. The moving mechanism 85 has a base portion 85a and a movable portion 85b. The base portion 85a is fixed within the protruding receiving portion 12. The chamfering tool 81 is mounted on the movable portion 85b in a manner that allows it to rotate about the rotation axis WR3. The movable portion 85b can move relative to the base portion 85a in the front-to-back (X) direction, the left-to-right (Y) direction, and the up-down (Z) direction. By moving the movable portion 85b relative to the base portion 85a, the chamfering tool 81 moves in each direction. The moving mechanism 85 can be of any structure as long as it can move the chamfering tool 81.

[0049] The chamfering machine 80 has a pressing part 87. The pressing part 87 presses down on the object W supported by the support part 86 from above. The pressing part 87, the support part 86, and the object W rotate together about the rotation axis WR2. The pressing part 87 is movable in the vertical direction Z.

[0050] The control device 20 controls the moving device 40, the gear cutting machine 70, the chamfering machine 80, and the support portions 76 and 86. In this embodiment, the control device 20 is capable of performing gear cutting and chamfering operations. Figure 1 As shown, the control device 20 is located on the front side (+X side) of the housing 10. The control device 20 is mounted on the left-right side (+Y side) of the front surface of the main body 11. The control device 20 includes a control device body 21, an operation panel 22, and a connecting part 23.

[0051] The control device body 21 is located on the front side (+X side) of the housing 10. The control device body 21 is mounted on the left-right side (+Y side) of the front surface of the main body 11. The control device body 21 and the protruding receiving portion 12 are spaced apart in the left-right Y direction. The control device body 21 is located at a position separated from the hole portion 14 in the left-right direction. The control device body 21 is cuboid in shape. The front-rear X dimension of the control device body 21 is smaller than the front-rear X dimension of the protruding receiving portion 12. The front surface of the control device body 21 is located rearward (-X side) than the front surface of the protruding receiving portion 12. The control device body 21 has a housing 21a. The housing 21a is cuboid box-shaped. The housing 21a is mounted on the left-right side of the front surface of the main body 11. The front surface of the housing 21a is the same as the front surface of the control device body 21.

[0052] like Figure 6 As shown, the main body 21 of the control device has a control unit 21b and a storage unit 21c. The control unit 21b and the storage unit 21c are housed inside the outer casing 21a. The control unit 21b is, for example, a processor such as a CPU (Central Processing Unit). The control unit 21b is the part that executes the program that causes each part to perform processing on the object W. This program is stored in the storage unit 21c.

[0053] The control panel 22 is operated by operator P when operator P uses machine tool 100, and when operator P performs maintenance on machine tool 100. For example... Figure 1 As shown, the operation panel 22 is mounted to the control device body 21 via the connecting part 23. The operation panel 22 is movable relative to the control device body 21. The operation panel 22 has an operation panel body part 22a and a handle part 22b.

[0054] In this embodiment, the main body 22a of the control panel is generally rectangular. The main body 22a has a display section 22c and multiple operation sections 22d. The display section 22c displays information related to the machining performed by the machine tool 100. The multiple operation sections 22d are operated by the operator P. The multiple operation sections 22d include those operated when removing the cutting tool 71 from the cutting machine 70, and those operated when removing the chamfering tool 81 from the chamfering machine 80. The operation sections 22d are, for example, buttons pressed by the operator P. The display section 22c and the operation sections 22d are located on one of the surfaces of the main body 22a. The surface with the display section 22c and the operation sections 22d is called the operation surface 22e. A handle section 22b is mounted on the lower surface of the main body 22a. Operator P can move the control panel 22 relative to the control device body 21 by grasping the handle 22b and pushing or pulling the handle 22b.

[0055] The connecting part 23 connects the control device body 21 and the operation panel 22. The connecting part 23 has a first shaft part 23a, an arm part 23b, and a second shaft part 23c. The first shaft part 23a protrudes upward from the upper surface of the control device body 21. More specifically, the first shaft part 23a protrudes upward from the end on the other side (-Y side) of the upper surface of the control device body 21 in the left-right direction. The first shaft part 23a is cylindrical with a rotation axis CR1 extending in the vertical direction Z as its center. The arm part 23b is connected to the upper end of the first shaft part 23a. The arm part 23b extends radially outward from the upper end of the first shaft part 23a with the rotation axis CR1 as its center. The arm part 23b is rotatable about the rotation axis CR1. The second shaft part 23c is cylindrical with a rotation axis CR2 extending in the vertical direction Z as its center. The second shaft part 23c extends downward from the lower surface of the arm part 23b. The upper end of the second shaft portion 23c is connected to the radially outer end of the rotation axis CR1 in the arm portion 23b. The lower end of the second shaft portion 23c is connected to the operation disk 22. The arm portion 23b and the operation disk 22 can rotate relative to each other about the rotation axis CR2.

[0056] exist Figures 1 to 4 In this example, the control panel 22 is located between the control device body 21 and the protruding receiving portion 12 in the left-right direction (Y). Figures 1 to 4 In the example, the orientation of the control panel 22 is such that the control surface 22e faces the opposite side (-Y side) in the left-right direction. Figures 1 to 4 In this example, the operation dial 22 is positioned overlapping the hole 14 when viewed from the left-right direction (Y). That is, in this embodiment, the operation dial 22 can be moved to a position overlapping the hole 14 when viewed from the left-right direction (Y), where it extends through the first portion 14a of the wall constituting the protruding receiving portion 12. In this embodiment, the operation dial 22 can be moved to a position overlapping the first portion 14a when viewed from the left-right direction (Y). Figure 4 As shown by the double-dotted line, the operation panel 22 can be moved to a position located in front of the control device body 21 (+X side). When the operation panel 22 is located in front of the control device body 21, its operation surface 22e can be positioned with the operation surface facing forward. Figure 4 As shown by the double-dotted line, the operation panel 22 is located between the control device body 21 and the protruding receiving part 12 in the left-right direction Y, and can be tilted in the front-back direction X relative to the surface orthogonal to the left-right direction Y.

[0057] In this embodiment, the control device 20 follows Figure 7 The flowchart illustrates the control method for executing the machine tool 100. In this embodiment, the control method is executed by the control unit 21b. For example... Figure 7As shown, the control device 20 executes the first movement process S10. In the first movement process S10, the control device 20 moves the unprocessed object W, which is placed on the support 90 by the operator P, to the support 76 via the moving device 40, so that the object W is supported by the support 76.

[0058] After the first movement process S10, the control device 20 executes the tooth cutting process S20. In the tooth cutting process S20, the control device 20 controls the tooth cutting machine 70 to perform tooth cutting on the object W supported by the support portion 76. As a result, multiple teeth Wa are created on the object W. After the tooth cutting process S20, the control device 20 executes the second movement process S30. In the second movement process S30, the control device 20 moves the object W onto the support portion 86 via the moving device 40, so that the object W is supported by the support portion 86. In the second movement process S30 of this embodiment, the control device 20 lowers the pressing portion 87 and presses the object W supported by the support portion 86 from above.

[0059] After the second movement process S30, the control device 20 performs the chamfering process S40. The chamfering process S40 includes a detection process S41 and a machining process S42. That is, the control device 20 can execute both the detection process S41 and the machining process S42; the control method of this embodiment includes both the detection process S41 and the machining process S42. The detection process S41 is the process of controlling the chamfering machine 80 and detecting the phase of multiple teeth Wa of the object W using a sensor 84. Figure 5 As shown, in the detection process S41, the control device 20 sets the posture of the chamfering tool 81 to a first posture PT1. That is, the control method of this embodiment includes setting the posture of the chamfering tool 81 to the first posture PT1 in the detection process S41. The first posture PT1 is a posture in which the second central axis TR2 is tilted relative to the left-right direction Y, which is the horizontal direction. In this embodiment, the tilt angle θa of the second central axis TR2 of the first posture PT1 relative to the left-right direction Y is 40° or more. The tilt angle θa is 70° or less. The tilt angle θa is, for example, about 50°. These tilt angle θa values ​​are absolute values. There is no particular limitation as long as the tilt angle θa is greater than 0°. In the first posture PT1, the chamfering tool 81 is located on the lower side as it moves toward the other side (-Y side) in the left-right direction. The first posture PT1 is a posture in which the chamfering tool 81 tilts toward the upper-lower direction Z relative to the left-right direction Y as the sensor mounting part 83 descends toward the lower side of the tool body 82.

[0060] In the first posture PT1, the second central axis TR2 extends along the left-right direction Y when viewed from the vertical direction Z. That is, in the detection process S41, the control device 20 sets the posture of the chamfering tool 81 such that, when viewed from the vertical direction Z, the second central axis TR2 extends along the left-right direction Y, which intersects the front-back direction X. Furthermore, the control method of this embodiment includes setting the posture of the chamfering tool 81 in the detection process S41 such that, when viewed from the vertical direction Z, the second central axis TR2 extends along the left-right direction Y. In this embodiment, the first posture PT1 is also the standby posture of the chamfering tool 81. That is, when the chamfering machine 80 is not performing the chamfering process S40, the posture of the chamfering tool 81 is the first posture PT1.

[0061] In detection process S41, the control device 20 aligns the left-right Y position of the sensor 84 with the left-right Y position of the rotation axis WR2, positioning the sensor 84 and the object W in the front-back X direction. In detection process S41, while the sensor 84 and the object W are positioned in the front-back X direction, the control device 20 rotates the support 86 around the rotation axis WR2, thereby rotating the object W around the rotation axis WR2. Thus, the control device 20 can obtain the positions of multiple teeth Wa in the circumferential direction around the rotation axis WR2 and the relative positional relationships of the valleys between the teeth Wa, based on the sensor 84. Therefore, the control device 20 can detect the phase of the multiple teeth Wa based on the detection results of the sensor 84.

[0062] After inspection process S41, control device 20 executes machining process S42. Machining process S42 is a process that controls the chamfering machine 80 based on the result of inspection process S41, and performs machining on the object W using chamfering tool 81. Figure 8As shown, in processing S42, the control device 20 sets the posture of the chamfering tool 81 to a second posture PT2. That is, the control method of this embodiment includes setting the posture of the chamfering tool 81 to the second posture PT2 in processing S42. The second posture PT2 is a posture in which the second central axis TR2 is tilted relative to the vertical direction Z. In this embodiment, the second posture PT2 is a posture in which the second central axis TR2 is tilted relative to the horizontal direction Y. The tilt angle θb of the second central axis TR2 in the second posture PT2 relative to the horizontal direction Y is greater than 0° and less than 40°. In this embodiment, the tilt angle θb is greater than 0° and less than 20°. The tilt angle θb is, for example, about 10°. These tilt angle θb values ​​are absolute values. The tilt angle θb is less than the tilt angle θa. In other words, the tilt angle of the second central axis TR2 in the first posture PT1 relative to the horizontal direction Y is greater than the tilt angle of the second central axis TR2 in the second posture PT2 relative to the horizontal direction Y. In the second posture PT2, the chamfering tool 81 is positioned on the upper side as it faces the other side (-Y side) in the horizontal direction. The second posture PT2 is a posture in which the chamfering tool 81 is tilted relative to the left-right direction Y and the right-right direction Z with the sensor mounting part 83 rising upward relative to the tool body 82. That is to say, in the first posture PT1 and the second posture PT2, the directions in which the chamfering tool 81 is tilted relative to the left-right direction Y and the right-right direction Z are opposite to each other.

[0063] In machining process S42, the control device 20 rotates the tool body 82 around the second central axis TR2, and performs chamfering on multiple teeth Wa of the object W through the tool body 82. In machining process S42, the control device 20 aligns the teeth of the tool body 82 with the teeth Wa of the object W based on the phase of the multiple teeth Wa obtained in detection process S41. In machining process S42, the control device 20, for example, uses either tool body 82a or tool body 82b to sequentially chamfer the upper and circumferential edges of each tooth Wa, the upper and circumferential edges of each tooth Wa on the other side, the lower and circumferential edges of each tooth Wa on the other side. By performing chamfering on the multiple teeth Wa, the gear machining of the object W is completed, and a gear is manufactured.

[0064] like Figure 7 As shown, after processing S42, the control device 20 executes the third movement process S50. In the third movement process S50, the control device 20 moves the object W, which has been completed as a gear, onto the support 90 via the moving device 40, so that the object W is supported by the support 90. The operator P can remove the object W, which has been completed as a gear, from the machine tool 100 via the opening 13a of the changing part 13.

[0065] Figure 9 This is a diagram showing a portion of machine tool 200, which is a comparative example. Figure 9 The diagram shows the case where inspection process S41a is being performed in the machine tool 200 of the comparative example. The posture of the chamfering tool 281 differs between the inspection process S41a in the machine tool 200 of the comparative example and the inspection process S41 in the machine tool 100 of this embodiment. For example... Figure 9 As shown, in the comparative example, the chamfering tool 281 of the chamfering machine 280 in the machine tool 200 is set to a third posture PT3 in the detection process S41a. The third posture PT3 is a posture in which the second central axis TR2 is parallel to the left-right direction Y, which is the horizontal direction. In the chamfering tool 281, the sensor 284 is positioned at a position overlapping with the second central axis TR2 when viewed from the front-back direction X. Except for the above points, the detection process S41a is the same as the detection process S41 of this embodiment.

[0066] In the inspection process S41a of the comparative example machine tool 200, the position of the sensor 284 mounted on the sensor mounting part 83 in the left-right direction Y is also aligned with the position of the rotation axis WR2 in the left-right direction Y. At this time, if the posture of the chamfering tool 281 is the third posture PT3 in which the second central axis TR2 is parallel to the left-right direction Y, then the position of the chamfering tool 281 in the left-right direction Y needs to be moved significantly in the left-right direction Y compared to the position of the chamfering tool 281 in the left-right direction Y when performing the machining process S42. Therefore, in the inspection process S41a, the chamfering tool 281 will protrude significantly in the left-right direction Y relative to the support part 86, and there is a problem that in order to accommodate the chamfering tool 281 inside, the size of the protruding receiving part 12 that houses the chamfering machine 280 in the left-right direction Y becomes larger. If the size of the protruding receiving part 12 in the left-right direction Y becomes larger, there is a problem that the space around the machine tool 200 becomes narrower, making it difficult for the operator P to perform the operation. Specifically, for example, there is a problem that the gap in the left-right direction Y between the protruding receiving part 12 and the control device body 21 becomes narrower, making it difficult for the operator P to work between the protruding receiving part 12 and the control device body 21 in the left-right direction Y.

[0067] To address the aforementioned problems, according to this embodiment, in the detection process S41, the control device 20 sets the posture of the chamfering tool 81 to a first posture PT1. The first posture PT1 is a posture in which the second central axis TR2 is tilted relative to the left-right direction Y, which is the horizontal direction. Therefore, as... Figure 5As shown, in the detection process S41, the chamfering tool 81 can be configured to be tilted relative to the left-right direction Y. Compared with the case where the chamfering tool 81 is in the third posture PT3, the size of the chamfering tool 81 in the left-right direction Y in the detection process S41 can be reduced. Therefore, in the detection process S41, it is possible to suppress the chamfering tool 81 from protruding significantly relative to the support portion 86 in the left-right direction Y. Specifically, in this embodiment, in the detection process S41, compared with... Figure 5 Compared to the chamfering tool 281 in the third posture PT3 shown by the double-dotted line, the end of the chamfering tool 81 on one side (+Y side) in the left-right direction can be located on the other side (-Y side) in the left-right direction. This reduces the left-right Y dimension of the protruding receiving portion 12 that houses the chamfering machine 80. Specifically, in this embodiment, the end of the protruding receiving portion 12 on one side in the left-right direction can be located on the other side of the machine tool 200 compared to the comparative example. This allows for miniaturization of the protruding receiving portion 12 in the left-right Y direction, thereby easily ensuring a larger space around the machine tool 100 for the operator P to perform operations. Specifically, in this embodiment, as... Figure 4 As shown, the distance between the control device body 21 and the protruding receiving portion 12 in the left-right direction Y can be increased, making it easier for the operator P to work between the control device body 21 and the protruding receiving portion 12 in the left-right direction Y. Therefore, the operability of the operator P can be improved in the machine tool 100. In addition, since the protruding receiving portion 12 can be miniaturized, the manufacturing cost of the housing 10 can be reduced. Therefore, the manufacturing cost of the machine tool 100 can be reduced.

[0068] In this embodiment, the inclination angle θa of the second central axis TR2 of the first posture PT1 relative to the left-right direction Y, i.e., the horizontal direction, is greater than the inclination angle θb of the second central axis TR2 of the second posture PT2 relative to the left-right direction Y. Therefore, it is easy to increase the inclination angle θa, which can further reduce the size of the chamfering tool 81 in the left-right direction Y under the first posture PT1. As a result, it is easy to further miniaturize the protruding receiving portion 12 in the left-right direction Y, which can further improve the operability of the operator P. In addition, the manufacturing cost of the machine tool 100 can be further reduced.

[0069] In this embodiment, the inclination angle θa of the second central axis TR2 of the first posture PT1 relative to the left-right direction Y, i.e., the horizontal direction, is 40° or more. Therefore, it is easy to further appropriately increase the inclination angle θa, and it is possible to more appropriately reduce the size of the chamfering tool 81 in the left-right direction Y under the first posture PT1. As a result, it is easy to further appropriately miniaturize the protruding receiving portion 12 in the left-right direction Y, and it is possible to more appropriately improve the workability of the operator P. In addition, it is possible to more appropriately reduce the manufacturing cost of the machine tool 100.

[0070] The closer the inclination angle θa is to 90°, the smaller the dimension of the chamfering tool 81 in the left-right direction Y under the first posture PT1. However, if the inclination angle θa is too large, the wiring layout in the chamfering machine 80 becomes difficult. Furthermore, if the inclination angle θa is too large, the amount of movement required to move the chamfering tool 81 when transferring from the detection process S41 to the processing process S42 becomes larger. Therefore, the accuracy of tooth alignment using the phases of multiple teeth Wa in the processing process S42 may sometimes decrease. In contrast, in this embodiment, the inclination angle θa is 70° or less. As a result, it is possible to suppress the difficulty of wiring layout in the chamfering machine 80 and to suppress the decrease in tooth alignment accuracy in the processing process S42.

[0071] In this embodiment, when the sensor 84 is viewed from the front-rear direction X relative to the object W during the detection process S41, it is positioned at a position offset from the second central axis TR2. For example, when the sensor 84 is positioned in the sensor mounting portion 83 at a position overlapping the second central axis TR2 when viewed from the front-rear direction X in the first posture PT1, the position of the sensor 84 in the left-right direction Y becomes more... Figure 5 The sensor 84 shown is positioned on the opposite side (-Y side) in the left-right direction Y. In this case, to align the sensor 84's front-back direction X with the rotation axis WR2 in the first posture PT1, the chamfering tool 81 needs to be moved to a position greater than... Figure 5 The position shown is on the left-right side (+Y side). In contrast, by positioning the sensor 84 at a position offset from the second central axis TR2 when viewed from the front-rear direction X, as in this embodiment, the amount of movement of the chamfering tool 81 to the left-right side can be reduced. Therefore, it is easier to position the wall portion on the left-right side of the protruding receiving portion 12 further to the other side of the left-right direction, and the protruding receiving portion 12 can be further miniaturized in the left-right direction Y.

[0072] In this embodiment, the support portion 86, serving as the first support portion, is located relative to the moving device 40 on one side (+X side) in the first horizontal direction, i.e., the front-rear direction X. The support portion 76, serving as the second support portion, is located relative to the moving device 40 on one side (+Y side) in the second horizontal direction, i.e., the left-right direction Y. In the detection process S41, the control device 20 sets the posture of the chamfering tool 81 to a posture in which the second central axis TR2 extends in a direction intersecting the front-rear direction X when viewed from the vertical direction Z. When the support portion 76 and the support portion 86 are configured as described above, as Figure 4As shown, operator P sometimes performs maintenance or other tasks on the inside of the corner formed by the main body 11 and the protruding receiving portion 12. In this embodiment, as described above, the protruding receiving portion 12 can be miniaturized in the left-right direction Y, which extends from the second central axis TR2 when viewed from the vertical direction Z. Therefore, the space inside the corner formed by the main body 11 and the protruding receiving portion 12 can be expanded, further improving the workability of operator P.

[0073] In this embodiment, the housing 10 includes: a hole 14 spanning the wall portion constituting the protruding receiving portion 12, which serves as the first receiving portion, and the wall portion constituting the main body portion 11; and a door member 30 that blocks the hole 14 in a way that allows it to be opened. Therefore, the operator P can open the hole 14 by opening the door member 30. The hole 14 spans the protruding receiving portion 12 and the main body portion 11, and no pillars or the like separating the protruding receiving portion 12 and the main body portion 11 are provided within the hole 14. Therefore, the operator P can easily perform operations on both the chamfering machine 80 in the protruding receiving portion 12 and the gear cutting machine 70 in the main body portion 11 via the opened hole 14. This further improves the operator P's workability. Specifically, the operator P can easily perform maintenance operations on the chamfering tool 81, replacement operations on the chamfering tool 81, maintenance operations on the gear cutting tool 71, and replacement operations on the gear cutting tool 71 via the hole 14.

[0074] In this embodiment, the door member 30 includes: a first door portion 31, which can be opened to block the first portion 14a of the wall portion constituting the protruding receiving portion 12; and a second door portion 32, which can be opened to block the second portion 14b of the wall portion constituting the main body portion 11. Therefore, compared to blocking the hole portion 14 in an openable manner using only one door portion, it is easier to block the hole portion 14 in an openable manner using two door portions. Furthermore, when the operator P performs work only on either the protruding receiving portion 12 or the main body portion 11, by opening only one door portion, work can be performed without unnecessarily exposing the interior of the machine tool 100.

[0075] In this embodiment, the control device 20 includes a control device body 21 and an operation panel 22 that can move relative to the control device body 21. Therefore, the operator P can move the operation panel 22 to a position where it is easy to perform operations. This further improves the workability of the operator P. For example, when disassembling the chamfering tool 81 and the tooth-cutting tool 71, the operator P needs to operate the operation panel 22. By moving the operation panel 22 to the vicinity of the hole 14, the operator P can easily operate the operation panel 22 and perform operations on each tool without changing their posture. Therefore, the workability of disassembling each tool can be improved.

[0076] Thus, by providing a hole 14 that spans the wall portion constituting the protruding receiving portion 12 and the wall portion constituting the main body portion 11, and by enabling the operation panel 22 to move relative to the control device main body 21, the operability of the operator P can be appropriately improved.

[0077] In this embodiment, the operation panel 22 can be moved to a position where it overlaps with the hole 14 when viewed from the left-right direction Y, through the first portion 14a of the wall constituting the protruding receiving portion 12. Therefore, the operator P, who performs operations through the hole 14, can easily move the operation panel 22 to an easily operable position. Thus, the operability of the operator P can be further improved.

[0078] In this embodiment, the first tool of the first processing machine housed within the protruding receiving portion 12, which serves as the first receiving portion, is a chamfering tool 81 for chamfering the object W. Therefore, it is easy to miniaturize the protruding receiving portion 12 that houses the chamfering processing machine 80. This improves the operability of the chamfering processing machine 80 for the operator P.

[0079] The control device 20 is a computer that executes the control method of this embodiment described above. A program is installed in the control device 20 to cause the computer to execute the control method. This program is stored, for example, in storage unit 21c and executed by control unit 21b. At least a portion of the functions of the control device 20 are implemented, for example, by executing the program stored in storage unit 21c, i.e., software. It should be noted that the program may also be stored in a different storage unit than storage unit 21c. The control device 20 may also be composed of multiple parts or devices, each having a portion of the functions of the control device 20.

[0080] At least a portion of the functionality of the control device 20 can be implemented in hardware, such as by circuitry including LSI (Large Scale Integration), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array), and CPU (Central Processing Unit), or by a combination of software and hardware. The storage unit 21c, which stores a program that causes the control device 20 (as a computer) to execute the processing method of this embodiment, can be implemented using storage media such as RAM (Random Access Memory), ROM (Read Only Memory), HDD (hard disk drive), and flash memory. The storage unit 21c is not particularly limited as long as it can store a program that causes the control device 20 to execute the control method of this embodiment. The storage unit 21c can be a microcomputer or a disk medium such as a CD-ROM. The storage unit 21c can also be separate from the control device 20. In this case, the control device 20 can communicate with the storage unit 21c via wired or wireless communication and execute the program stored in the storage unit 21c.

[0081] This invention is not limited to the embodiments described above. Other configurations and methods may be employed within the scope of the technical concept of this invention. The machine tool disclosed herein can be any machine tool that processes an object, including those performing machining other than gear machining. Examples of machining other than gear machining include cutting, grinding, lapping, and marking (engraving) for manufacturing components other than gears. Cutting includes, for example, drilling.

[0082] The first tool can be any tool used to process the object. When the first tool is used to process an object with multiple teeth, it can be, for example, a tool other than a chamfering tool, such as a grinding tool for grinding multiple teeth. The first tool can also be a tool used for processing other than gear machining. The second tool can be any tool used to process the object. For example, it can be a grinding tool for grinding multiple teeth. The second tool can also be a tool used for processing other than gear machining. A second processing machine without a second tool may also be chosen.

[0083] In the inspection process, the control device can also set the posture of the first tool to any posture. In the inspection process, the control device can also set the posture of the first tool so that its central axis is parallel to the horizontal direction. The inclination of the central axis of the first tool in the first posture relative to the horizontal direction can be the same as, or less than, the inclination of the central axis of the first tool in the second posture relative to the horizontal direction. In the machining process, the control device can also set the posture of the first tool to any posture. In the machining process, the control device can also set the posture of the first tool so that its central axis is parallel to the vertical direction. The operating panel of the control device may not be movable relative to the main body of the control device. When the housing has a hole spanning the wall portion constituting the first receiving portion and the wall portion constituting the second receiving portion, a door member that can block the hole in an openable manner may also be composed of a single door portion. The housing may also not have a hole spanning the wall portion constituting the first receiving portion and the wall portion constituting the second receiving portion.

[0084] It should be noted that this technology can be configured as follows.

[0085] (1) A machine tool for machining gears on an object, comprising: a first machining machine having a first tool for machining the object having a plurality of teeth and a first moving mechanism for moving the first tool; a housing having a first receiving portion for housing the first machining machine therein; and a control device for controlling the first machining machine, the first tool having: a tool body capable of rotating about a central axis; a sensor capable of detecting the phase of the plurality of teeth; and a sensor mounting portion located on one side of the tool body in the axial direction of the central axis, and the sensor being mounted thereon, the control device being capable of performing: a detection process, controlling the first machining machine and detecting the phase of the plurality of teeth by the sensor; and a machining process, controlling the first machining machine based on the result of the detection process and machining the object by the first tool; in the detection process, the control device sets the posture of the first tool to a first posture, and in the machining process, the control device sets the posture of the first tool to a second posture, the second posture being a posture in which the central axis is inclined relative to the vertical direction, and the first posture being a posture in which the central axis is inclined relative to the horizontal direction.

[0086] (2) The machine tool according to (1), wherein the inclination of the central axis of the first posture relative to the horizontal direction is greater than the inclination of the central axis of the second posture relative to the horizontal direction.

[0087] (3) The machine tool according to (2), wherein the inclination of the central axis of the first posture relative to the horizontal direction is more than 40°.

[0088] (4) The machine tool according to any one of (1) to (3), wherein, in the detection process, when viewed from the direction opposite to the object, the sensor is configured at a position offset from the central axis.

[0089] (5) A machine tool according to any one of (1) to (4), wherein the machine tool comprises: a first support portion capable of supporting the object; a second support portion capable of supporting the object; a second processing machine having a second tool for processing the object supported by the second support portion and a second moving mechanism for moving the second tool; and a moving device capable of moving the object between a position supported by the first support portion and a position supported by the second support portion, wherein the first tool is a tool for processing the object supported by the first support portion, the first support portion is located on one side of a first horizontal direction relative to the moving device, the second support portion is located on one side of a second horizontal direction intersecting the first horizontal direction relative to the moving device, and in the detection process, the control device sets the posture of the first tool to a posture in which the central axis extends in a direction intersecting the first horizontal direction when viewed from the vertical direction.

[0090] (6) The machine tool according to (5), wherein the housing has: a second receiving portion for receiving the second processing machine inside; a hole spanning the wall portion constituting the first receiving portion and the wall portion constituting the second receiving portion; and a door member for blocking the hole portion in a manner that allows it to be opened.

[0091] (7) The machine tool according to (6), wherein the door member has: a first door portion that blocks the portion of the wall portion constituting the first receiving portion in a manner that can be opened; and a second door portion that blocks the portion of the wall portion constituting the second receiving portion in a manner that can be opened.

[0092] (8) The machine tool according to (6) or (7), wherein the control device has: a control device body; and an operation panel that is movable relative to the control device body.

[0093] (9) A machine tool for processing an object, comprising: a first support portion capable of supporting the object; a second support portion capable of supporting the object; a first processing machine having a first tool for processing the object supported by the first support portion; a second processing machine having a second tool for processing the object supported by the second support portion; a moving device capable of moving the object between a position supported by the first support portion and a position supported by the second support portion; a housing housing housing the first support portion, the second support portion, the first processing machine, the second processing machine, and the moving device; and a control device for controlling the first processing machine and the second processing machine, the housing housing having: a first receiving portion housing the first processing machine; a second receiving portion housing the second processing machine; a hole spanning the wall portion constituting the first receiving portion and the wall portion constituting the second receiving portion; and a door member blocking the hole portion in a manner capable of being opened, the control device having: a control device body; and an operating panel capable of moving relative to the control device body.

[0094] (10) The machine tool according to (8) or (9), wherein the operating disk is movable to a position that overlaps with the hole when viewed from the direction through which the portion of the wall constituting the first receiving portion passes through the wall constituting the first receiving portion.

[0095] (11) The machine tool according to any one of (1) to (10), wherein the first tool is a chamfering tool for chamfering the object.

[0096] (12) A control method for controlling a machine tool that performs gear machining on an object, the machine tool comprising: a first machining machine having a first tool for machining the object having a plurality of teeth and a first moving mechanism for moving the first tool; a housing having a first receiving portion for housing the first machining machine therein; and a control device for controlling the first machining machine, the first tool having: a tool body capable of rotating about a central axis; a sensor capable of detecting the phase of the plurality of teeth; and a sensor mounting portion located on one side of the tool body in the axial direction of the central axis, and the sensor being mounted thereon, the control method comprising: a detection process for controlling the first machining machine and detecting the phase of the plurality of teeth by the sensor; and a machining process for controlling the first machining machine based on the result of the detection process and machining the object by the first tool, wherein in the detection process, the posture of the first tool is set to a first posture, and in the machining process, the posture of the first tool is set to a second posture, the second posture being a posture in which the central axis is inclined relative to the vertical direction, and the first posture being a posture in which the central axis is inclined relative to the horizontal direction.

[0097] (13) According to the control method of (12), wherein the inclination of the central axis of the first posture relative to the horizontal direction is greater than the inclination of the central axis of the second posture relative to the horizontal direction.

[0098] (14) According to the control method of (13), wherein the inclination of the central axis of the first posture relative to the horizontal direction is more than 40°.

[0099] (15) The control method according to (13) or (14), wherein the machine tool comprises: a first support portion capable of supporting the object; a second support portion capable of supporting the object; a second processing machine having a second tool for processing the object supported by the second support portion and a second moving mechanism for moving the second tool; and a moving device capable of moving the object between a position supported by the first support portion and a position supported by the second support portion, the first tool being the tool for processing the object supported by the first support portion, the first support portion being located on one side of a first horizontal direction relative to the moving device, the second support portion being located on one side of a second horizontal direction intersecting the first horizontal direction relative to the moving device, and the control method comprising: in the detection process, setting the posture of the first tool to a posture in which the central axis extends in a direction intersecting the first horizontal direction when viewed from the vertical direction.

[0100] (16) The control method according to any one of (13) to (15), wherein the first tool is a chamfering tool for chamfering the object.

[0101] (17) A program that causes a computer to perform the control method as described in any one of (12) to (16).

[0102] The structures and methods described above in this specification can be appropriately combined within a range that do not contradict each other.

[0103] Explanation of reference numerals in the attached figures

[0104] 10: Housing; 11: Main body (second receiving part); 12: Protruding receiving part (first receiving part); 14: Hole; 20: Control device; 21: Control device body; 22: Operating panel; 30: Door component; 31: First door; 32: Second door; 40: Moving device; 70: Gear cutting machine (second processing machine); 71: Gear cutting tool (second tool); 75: Moving mechanism (second moving mechanism); 76: Support part (second support part); 80: Chamfering machine (first processing machine); 81: Chamfering Angle tool (first tool); 82, 82a, 82b: tool body; 83: sensor mounting part; 84: sensor; 85: moving mechanism (first moving mechanism); 86: support part (first support part); 90: support part; 100: machine tool; PT1: first posture; PT2: second posture; S40: chamfering; S41: inspection processing; S42: processing processing; TR2: second central axis (central axis); W: object; Wa: tooth; Z: up and down direction; θa, θb: inclination.

Claims

1. A machine tool for machining gears on an object, comprising: The first processing machine has a first tool for processing the object having a plurality of teeth and a first moving mechanism for moving the first tool. The housing has a first receiving portion that houses the first processing machine inside; and The control device controls the first processing machine. The first tool has: The main body of the tool is capable of rotating around its central axis; The sensor is capable of detecting the phase of the plurality of teeth; and The sensor mounting section is located axially along the central axis, closer to one side than the tool body, and the sensor is mounted thereon. The control device is capable of performing: The detection and processing involves controlling the first processing machine and detecting the phase of the plurality of teeth using the sensor. and The processing involves controlling the first processing machine based on the results of the detection processing, and processing the object using the first tool. In the detection process, the control device sets the posture of the first tool to a first posture. During the processing, the control device sets the posture of the first tool to a second posture. The second posture is one in which the central axis is tilted relative to the vertical direction. The first posture is a posture in which the central axis is tilted relative to the horizontal direction.

2. The machine tool according to claim 1, wherein, The inclination of the central axis of the first posture relative to the horizontal direction is greater than the inclination of the central axis of the second posture relative to the horizontal direction.

3. The machine tool according to claim 2, wherein, The central axis of the first posture is tilted at an angle of 40° or more relative to the horizontal direction.

4. The machine tool according to claim 1, wherein, In the detection process, when viewed from the direction opposite to the object, the sensor is positioned off-center from the central axis.

5. The machine tool according to claim 1, wherein, The machine tool includes: The first support portion is capable of supporting the object; The second support portion is capable of supporting the object; The second processing machine has a second tool for processing the object supported by the second support and a second moving mechanism for moving the second tool. and The moving device enables the object to move between a position supported by the first support and a position supported by the second support. The first tool is a tool for processing the object supported by the first support portion. The first support portion is located on one side of the first horizontal direction relative to the moving device. The second support portion is located on one side of a second horizontal direction that intersects the first horizontal direction relative to the moving device. In the detection process, the control device sets the posture of the first tool such that, when viewed from the top and bottom, the central axis extends in a direction intersecting the first horizontal direction.

6. The machine tool according to claim 5, wherein, The housing has: The second receiving section houses the second processing machine. A hole is provided across the wall portion constituting the first receiving portion and the wall portion constituting the second receiving portion; and A door component that blocks the opening in a manner that allows it to be opened.

7. The machine tool according to claim 6, wherein, The door component has: The first door portion, in a manner that allows it to be opened, blocks the portion of the wall portion constituting the first receiving portion within the opening portion; and The second door is able to be opened to block the portion of the wall portion that forms the second receiving portion in the hole.

8. The machine tool according to claim 6, wherein, The control device has: The main body of the control device; and The control panel is movable relative to the main body of the control device.

9. A machine tool for machining an object, comprising: The first support portion is capable of supporting the object; The second support portion is capable of supporting the object; The first processing machine has a first tool for processing the object supported by the first support portion; The second processing machine has a second tool for processing the object supported by the second support portion; The moving device enables the object to move between a position supported by the first support and a position supported by the second support; The housing houses the first support portion, the second support portion, the first processing machine, the second processing machine, and the moving device. and The control device controls the first and second processing machines. The housing has: The first receiving section houses the first processing machine. The second receiving section houses the second processing machine. A hole is provided across the wall portion constituting the first receiving portion and the wall portion constituting the second receiving portion; and A door component that blocks the opening in a manner that allows it to be opened. The control device has: The main body of the control device; and The control panel is movable relative to the main body of the control device.

10. The machine tool according to claim 8, wherein, The operating panel can be moved to a position that overlaps with the hole when viewed from a direction through which the portion of the wall constituting the first receiving portion passes through the wall constituting the first receiving portion.

11. The machine tool according to any one of claims 1 to 10, wherein, The first tool is a chamfering tool used to chamfer the object.

12. A control method for controlling a machine tool that performs gear machining on an object. The machine tool includes: The first processing machine has a first tool for processing the object having a plurality of teeth and a first moving mechanism for moving the first tool. The housing has a first receiving portion that houses the first processing machine inside; and The control device controls the first processing machine. The first tool has: The main body of the tool is capable of rotating around its central axis; The sensor is capable of detecting the phase of the plurality of teeth; and The sensor mounting section is located axially along the central axis, closer to one side than the tool body, and the sensor is mounted thereon. The control method includes: The detection and processing involves controlling the first processing machine and detecting the phase of the plurality of teeth using the sensor. and The processing involves controlling the first processing machine based on the results of the detection processing, and processing the object using the first tool. In the detection process, the posture of the first tool is set to a first posture. In the processing, the posture of the first tool is set to the second posture. The second posture is one in which the central axis is tilted relative to the vertical direction. The first posture is a posture in which the central axis is tilted relative to the horizontal direction.

13. The control method according to claim 12, wherein, The inclination of the central axis of the first posture relative to the horizontal direction is greater than the inclination of the central axis of the second posture relative to the horizontal direction.

14. The control method according to claim 13, wherein, The central axis of the first posture is tilted at an angle of 40° or more relative to the horizontal direction.

15. The control method according to claim 13, wherein, The machine tool includes: The first support portion is capable of supporting the object; The second support portion is capable of supporting the object; The second processing machine has a second tool for processing the object supported by the second support and a second moving mechanism for moving the second tool. and The moving device enables the object to move between a position supported by the first support and a position supported by the second support. The first tool is a tool for processing the object supported by the first support portion. The first support portion is located on one side of the first horizontal direction relative to the moving device. The second support portion is located on one side of a second horizontal direction that intersects the first horizontal direction relative to the moving device. The control method includes: in the detection process, setting the posture of the first tool to a posture in which the central axis extends in a direction intersecting the first horizontal direction when viewed from the top and bottom.

16. The control method according to claim 13, wherein, The first tool is a chamfering tool used to chamfer the object.

17. A computer program product storing a program that causes a computer to perform the control method as described in any one of claims 12 to 16.

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