Mounting device, mounting method, and product manufacturing method

Abstract

The invention provides a mounting apparatus, a mounting method, and a method of manufacturing a product. In order to be able to detect whether or not an object to be turned is normally gripped with respect to a turning machine prior to turning, a mounting device (1) is provided with a pressing jig (3) that presses an object to be turned (400) against the turning machine (200), and the pressing jig (3) is provided with: a contact body (33) that can come into contact with the object to be turned; and a force sensor (35) that detects, via the contact body (33), a force in a pressing direction acting on the object to be turned from the turning machine, and a torque about an axis orthogonal to the pressing direction.

Description

Technical Field

[0001] The present invention relates to a mounting device and a mounting method for mounting a turning object on a turning machine, and a method for manufacturing a product. Background Art

[0002] In various mechanical processes, a chuck for holding a workpiece as a processing object is known. In addition, for example, Patent Document 1 discloses a holding force sensor for measuring the holding force (holding force) of a chuck for holding a workpiece. The holding force sensor of Patent Document 1 has a strain generator (including a large-diameter curved plate portion, a small-diameter curved plate portion, etc.) cantilevered on one side of a base, and when the chuck holds these curved plate portions, a strain gauge mounted on the strain generator generates strain to detect the holding force (holding force).

[0003] In the manufacture of the disc brake plate, it is known to hold the disc brake plate by a holding plate of a turning machine and perform turning on the disc brake plate. In addition, it is also known to automate the turning process by using a device for holding (loading) the disc brake plate by a holding plate of a turning machine, thereby efficiently manufacturing the disc brake plate.

[0004] The disc brake plate is a disc-shaped structure also called a rotor disc. The disc brake plate and the brake caliper together constitute a disc brake. Here, for example, Patent Document 2 discloses a structure having a pressing force sensor, which receives the pressing force between the linear motion member and the brake pad in a disc brake that generates a braking force by pushing a linear motion member with an actuator to press a brake pad (brake caliper) against a rotor disc and outputs an analog value corresponding to the pressing force.

[0005] Prior art literature

[0006] Patent Literature

[0007] Patent Document 1: Japanese Patent Application Publication No. 2022-70011

[0008] Patent Document 2: Japanese Patent Application Publication No. 2004-92812 Summary of the invention

[0009] Problem that the invention aims to solve

[0010] The turning machine described above can perform desired turning on the object by properly holding (gripping) the object to be turned relative to the turning machine. However, there is no known structure that can detect whether the object to be turned is properly held relative to the turning machine before turning.

[0011] An object of one embodiment of the present invention is to realize a mounting device, a mounting method, and a product manufacturing method capable of detecting whether a turning object is normally gripped relative to a turning machine before turning.

[0012] Solutions for solving problems

[0013] In order to solve the above-mentioned problem, an installation device involved in one embodiment of the present invention is an installation device for installing a turning object on a turning machine, the installation device has a pressing jig, the pressing jig presses the turning object against the turning machine, and the pressing jig is installed with: a contact body that can contact the turning object; and a force sensor that detects the force in the pressing direction acting from the turning machine on the turning object and the torque around an axis orthogonal to the pressing direction via the contact body.

[0014] In order to solve the above-mentioned problem, an installation method involved in one embodiment of the present invention is an installation method for installing a turning object on a turning machine, and the installation method includes: a pressing process, pressing the turning object on the turning machine; and a detection process, after the pressing process, detecting the force in the pressing direction acting on the turning object from the turning machine and the torque around an axis orthogonal to the pressing direction by a force sensor.

[0015] In order to solve the above-mentioned problem, a method for manufacturing a product according to one aspect of the present invention includes a mounting step of mounting the turning object, which is a base material of the product, on the turning machine using the above-mentioned mounting method.

[0016] Effects of the Invention

[0017] According to one aspect of the present invention, it is possible to realize a mounting device, a mounting method, and a product manufacturing method capable of detecting whether a turning object is normally gripped relative to a turning machine before turning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of a mounting device according to one embodiment of the present invention.

[0019] Figure 2 It is shown Figure 1 A block diagram of the structure of the installation device is shown.

[0020] Figure 3 yes Figure 1 A partially exploded side view of a pressing jig included in the mounting device shown.

[0021] Figure 4 yes Figure 1A perspective view of a force sensor included in the mounting device shown.

[0022] Figure 5 It is shown Figure 1 A diagram showing an example of notification of a determination result of an installation device.

[0023] Figure 6 It is shown Figure 1 A diagram showing an example of notification of a determination result of an installation device.

[0024] Figure 7 This is a flowchart illustrating the processing steps of the mounting method involved in one embodiment of the present invention.

[0025] Figure 8 This is a flowchart illustrating the processing steps of a method for manufacturing a product according to one embodiment of the present invention. DETAILED DESCRIPTION

[0026] <Structure of mounting device>

[0027] Reference Figure 1 to Figure 3 A mounting device 1 according to an embodiment of the present invention will be described. Figure 1 is a cross-sectional view of the mounting device 1 . Figure 2 It is a block diagram showing the structure of the mounting device 1. Figure 3 is a partial side view of the mounting device 1. Figure 1 In the figure, a part of the structure is shown in a cross-sectional view for the convenience of explanation. Figure 3 In the figure, the force sensor 35 is shown in a separated state for the convenience of explanation.

[0028] The mounting device 1 is a mounting device for mounting the turning object 400 on the turning machine 200. Here, as an example, the turning object 400 is a disc-shaped structure before turning, which is a base material of a disc brake plate, and the turning object 400 is a disc-shaped casting having a draft angle. The turning object 400 can also be called a disc brake plate before turning. However, the turning object 400 is not limited to the disc brake plate before turning.

[0029] The mounting device 1 includes a pressing jig 3 and a driving mechanism 5 for driving the pressing jig 3. The driving mechanism 5 includes a pressing cylinder 51 and a mounting portion 52 on which the pressing jig 3 is mounted. The pressing cylinder 51 moves the mounting portion 52 in one axial direction. In this embodiment, the one axial direction is defined as the Z axis. In addition, the accompanying drawings also show an XYZ three-dimensional coordinate system in which a plane perpendicular to the Z axis is set as an XY plane and the X-axis and Y-axis directions are defined.

[0030] The pressing jig 3 presses the turning object 400 against the turning machine 200. The pressing jig 3 is configured such that: the surface of the mounting portion 52 of the driving mechanism 5, which is mounted on the negative direction side of the Z axis, moves in the negative direction of the Z axis as the mounting portion 52 moves in the negative direction of the Z axis, thereby approaching the turning machine 200 disposed at a position closer to the negative direction side of the Z axis than the pressing jig 3.

[0031] Here, the turning machine 200 has a holding disk 201 on the positive direction side of the Z axis. As an example, the holding disk 201 is a three-claw holding disk. The holding disk 201 can hold (clamp) the turning object 400 in a detachable manner from the positive direction side of the Z axis. Regarding the specific structure of the holding disk 201, a holding disk provided in a well-known turning machine can be used, so it is not described here, but it is configured to hold the turning object 400 by the holding disk 201 in a state where the turning object 400 is pressed against the turning machine 200 by the pressing jig 3. As described later, at the timing when the turning object 400 is held by the holding disk 201, the pressing jig 3 releases the holding of the held turning object 400.

[0032] The driving mechanism 5 moves the pressing jig 3 which has released the state of holding the turning object 400 in a direction away from the turning machine 200 (Z-axis positive direction side). This is an overview of the movement of the pressing jig 3. Next, the structure of the pressing jig 3 will be described.

[0033] <Structure of the Pressing Jig>

[0034] The pressing jig 3 includes a base 31 , a holding plate 32 , a contact body 33 , and a force sensor 35 .

[0035] The base 31 is a flat plate-shaped structure extending in a direction perpendicular to the pressing direction (Z-axis direction). Figure 3 In the example shown, the base 31 is formed of a triangular flat plate and has a first main surface 31a facing the object 400 and a second main surface 31b opposite to the first main surface 31a.

[0036] The retaining plate portion 32 is mounted on the first main surface 31a and has a center axis parallel to the Z axis. The end on the positive side of the Z axis is fixed to the first main surface 31a. The retaining plate portion 32 holds (clamps) the turning object at the end on the negative side of the Z axis. Figure 3 2 is an example, showing the end portion of the holding plate portion 32 on the negative side of the Z axis. Figure 3As shown, the holding plate portion 32 can be a three-claw holding plate similar to the holding plate 201 of the turning machine 200 described above, and the holding plate portion 32 holds a predetermined holding position of the turning object 400, and moves each claw of the three-claw holding plate toward the central axis when the holding is released. In addition, the holding plate portion 32 is not limited to this form. As an example, when the turning object 400 is a disc brake plate, the predetermined holding position refers to a through hole provided in the center portion of the disc-shaped disc brake plate with a draft angle.

[0037] The contact body 33 is a rod-shaped structure that is attached to the first main surface 31a of the base 31 and extends in the pressing direction. A plurality of contact bodies 33 are provided at equal intervals along a virtual circle centered on the holding plate 32. Figure 3 In the example shown, three contact bodies 33 are provided around the holding plate 32, and a virtual line connecting the contact bodies 33 forms an equilateral triangle. The holding plate 32 is arranged at the center of gravity of the virtual equilateral triangle. In addition, there only need to be two contact bodies 33.

[0038] The end of each contact body 33 on the positive direction side of the Z axis is fixed to the first main surface 31a, and each contact body 33 can contact the turning object 400 at the end on the negative direction side of the Z axis. Specifically, the end of each contact body 33 on the negative direction side of the Z axis can contact the surface on the positive direction side of the turning object 400 pressed against the turning machine 200 in the negative direction of the Z axis, and the lengths of each contact body 33 are equal to each other. Each contact body 33 transmits the pressing force in the positive direction of the Z axis received from the turning object 400 to the base 31 through contact.

[0039] The force sensor 35 is mounted on the second main surface 31b side of the base 31. The force sensor 35 detects the force in the pressing direction and the torque around the axis orthogonal to the pressing direction acting from the turning machine 200 on the turning object 400 via the contact body 33. The force sensor 35 is arranged so as to be located on the inner side of the arrangement position of the holding plate portion 32. The force sensor 35 is fixed to the second main surface 31b on the second main surface 31b side of the base 31 by the connecting member 36. In addition, the frame portion 112 to which the force sensor 35 is connected is connected to the mounting portion 52.

[0040] The force sensor 35 is a six-axis force sensor, but may also be a three-axis force sensor. Figure 4 The force sensor 35 which is a six-axis force sensor will be described.

[0041] Figure 4 FIG. 3 is a perspective view of a force sensor 35 which is a six-axis force sensor. Figure 4As shown, the force sensor 35 includes a strain generating body 11 and a strain gauge group consisting of six strain gauges 12a1, 12a2, 12b1, 12b2, 12c1, and 12c2. Here, the six-axis force sensor is a force sensor that can detect the X-axis direction component, Y-axis direction component, Z-axis direction component, moment component around the X-axis, moment component around the Y-axis, and moment component around the Z-axis of the external force. In addition, the strain generating body 11 is configured in a manner that the two main surfaces are parallel to the XY plane. The main surface on the negative direction side of the Z axis, which is one of the pair of main surfaces of the strain generating body 11, is called the main surface 11a, and the main surface on the positive direction side of the Z axis, which is the other main surface, is called the main surface 11b.

[0042] In addition, the force sensor 35 is an example, and other existing force sensors may also be used. For example, regarding the structure of the force sensor, the Japanese Patent Application No. 2020-165898 (Japanese Patent Application No. 2019-068598) may also be applied. Figure 1 and Figure 2 The force sensor described.

[0043] In addition, the force sensor 35 includes a plurality of resistor elements and a plurality of bridge circuits in addition to the strain generating body 11 and the strain gauges 12a1, 12a2, 12b1, 12b2, 12c1, 12c2. However, in the present embodiment, the strain generating body 11 and the strain gauges 12a1, 12a2, 12b1, 12b2, 12c1, 12c2 are described, and the description of the plurality of resistor elements and the plurality of bridge circuits is omitted. Regarding the structure of the plurality of resistor elements and the plurality of bridge circuits, it is possible to apply existing force sensors (for example, those disclosed in Japanese Patent Publication No. 2020-165898). Figure 1 and Figure 2 The structure of the force sensor described in the specification.

[0044] The strain generating body 11 is a plate-shaped member made of elastic material. Figure 4 As shown, the strain generating body 11 includes a core 111, a frame 112 surrounding the core 111, and arm portions 113a to 113c connecting the core 111 and the frame 112. Examples of the material of the strain generating body 11 include conductors such as aluminum alloy, alloy steel, stainless steel, and dielectrics such as ceramics, resins, and glass. In the present embodiment, the strain generating body 11 is made of ceramics, which is an example of a dielectric.

[0045] In addition, as a processing method of the strain generating body 11, mechanical processing of a base material as a plate-like member with uniform thickness can be cited. As an example of mechanical processing, cutting can be cited. Regarding cutting, NC (Numerical Control) processing can be preferably used. In addition, when an external force acts on the core 111 in a state where the frame portion 112 is fixed, a strain corresponding to the external force is generated in the arm portions 113a to 113c. Therefore, the core 111 is sometimes referred to as a "force-bearing portion" and the frame portion 112 is sometimes referred to as a "fixed portion".

[0046] The force sensor 35 is configured such that the main surface 11a on the negative side of the Z axis, which is one of the pair of main surfaces of the strain generating body 11, faces the Figure 1 The second main surface 31b of the base 31 shown in the figure (with the connecting member 36 in between). The force sensor 35 is configured such that, when the frame portion 112 is fixed to the second main surface 31b of the base 31 via the connecting member 36, an external force, that is, a force acting from the turning machine 200 on the turning object 400, is applied to the core portion 111 via the contact body 33, the base 31, and the connecting member 36. The force sensor 35 detects the X-axis direction component, the Y-axis direction component, and the Z-axis direction component of the force. The X-axis direction component, the Y-axis direction component, and the Z-axis direction component of the force correspond to the "force in the pressing direction acting from the turning machine 200 on the turning object 400" detected by the force sensor 35. In addition, the force sensor 35 detects the moment component of the force around the X-axis, the moment component around the Y-axis, and the moment component around the Z-axis. These components correspond to the "torque around the axis orthogonal to the pressing direction" detected by the force sensor 35.

[0047] In addition, there is no particular limitation on the shape of the core 111, but in the present embodiment, a column shape with a substantially triangular bottom surface (i.e., a substantially triangular prism shape) is adopted as the shape of the core 111. In addition, there is no particular limitation on the shape of the frame 112, but in the present embodiment, a ring shape is adopted as the shape of the frame 112. The outer periphery and the inner periphery of the frame 112 are both substantially circular and are formed in a concentric manner. The strain generating body 11 is formed by processing a substrate of uniform thickness as described above. Therefore, the thickness of the core 111 is substantially equal to the thickness of the frame 112 (equal in the present embodiment). The core 111 is accommodated inside the inner periphery of the frame 112 in such a manner that the center of the ring-shaped frame 112 coincides with the center of gravity of the core 111.

[0048] In the present embodiment, as the shape of the arm portions 113a to 113c, a column shape (i.e., a substantially quadrangular prism shape) having a substantially quadrilateral cross section and extending in one direction is adopted. In addition, there is no particular limitation on the number of the arm portions 113a to 113c, but in the present embodiment, the number of the arm portions 113a to 113c is set to 3. The arm portion 113a extends from the core portion 111 in the negative direction of the Y axis to connect the core portion 111 to the frame portion 112. In addition, the arm portion 113b extends from the core portion 111 in the direction of -120° (120° clockwise) from the negative direction of the Y axis in the XY plane to connect the core portion 111 to the frame portion 112. In addition, the arm portion 113c extends from the core portion 111 in the direction of +120° (120° counterclockwise) from the negative direction of the Y axis in the XY plane to connect the core portion 111 to the frame portion 112.

[0049] However, the shapes of the core 111, the frame 112, and the arms 113a to 113c are not limited to the above shapes. For example, the core 111, the frame 112, and the arms 113a to 113c may be as described in Japanese Patent Application Publication No. 2020-165898. Figure 1 That shape.

[0050] like Figure 2 As shown, the mounting device 1 further includes a control unit 7. The control unit 7 controls the various structures of the pressing jig 3. In addition, the control unit 7 obtains the output signal of the force sensor 35. The control unit 7 obtains a signal representing the force in the pressing direction and the torque around an axis orthogonal to the pressing direction acting from the turning machine 200 on the turning object 400 detected by the force sensor 35. Specifically, the control unit 7 uses a threshold value based on the obtained signal to determine whether the turning object 400 is in contact with the retaining disk 201 of the turning machine 200 (force in the pressing direction). In addition, the control unit 7 sets a threshold value for the value of the torque, and uses the obtained signal to determine that the turning object 400 is tilted when the value of the torque becomes above the threshold value.

[0051] Here, the inclination of the turning object in the present application specification means the inclination of the turning object pressed against the turning machine relative to the turning object when the turning machine assumes that the turning object is normally held. Being held normally means that the turning machine can perform the desired turning process on the turning object. For example, when the center axis of the turning object held by the turning machine is parallel to the vertical direction and is set as "normally held", when the center axis of the turning object is tilted relative to the axis along the vertical direction, it is assumed that there is an inclination of the turning object. In addition, in another example, when the center axis of the turning object held by the turning machine is in a horizontal plane and is set as "normally held", when the center axis of the turning object is tilted relative to the horizontal plane, it is assumed that there is an inclination of the turning object. There are various reasons why the turning object is tilted relative to the turning machine, for example, a defect in the mounting device 1, especially a defect in the holding plate portion 32 of the pressing jig 3, can be cited. In addition, as one of the causes of poor gripping, a defect in the structure of the object to be turned can be considered. In addition to inappropriate deformation, displacement of the center of gravity, etc., the defect in the structure of the object to be turned can also be listed as a defect caused by casting when the inspection object 400 is a disk-shaped casting that has been turned and is the base material of a disc brake plate.

[0052] In addition, the control unit 7 can also control the holding and release of the holding disk unit 32. In addition, the control unit 7 can also control the driving mechanism 5. Figure 2 In the example of FIG. 1 , one control unit 7 is configured, but a control unit may be provided for each control of each component.

[0053] In addition, if Figure 2 As shown, the mounting device 1 includes a transmitting unit 8. When at least one of the force in the pressing direction and the torque around the axis orthogonal to the pressing direction detected by the force sensor 35 is a value outside the prescribed numerical range, the transmitting unit 8 transmits a prescribed signal. In other words, when the tilt of the turning object 400 is a tilt outside the allowable range, the transmitting unit 8 transmits a prescribed signal. The transmitting unit 8 can obtain a signal related to the tilt of the turning object 400 from the control unit 7. In addition, the control unit 7 determines whether it exceeds the prescribed numerical range.

[0054] The sending method of the sending unit 8 can adopt a well-known sending method. When the sending unit 8 includes a sound output device, the sending can be performed by sound. In addition, when the sending unit 8 includes a light-emitting device, the sending can be performed by light. As another example of the sending method of the sending unit 8, when the sending unit 8 includes a display device, an image indicating that a value outside a prescribed numerical range has been detected can be displayed on a display screen of the display device. Figure 5 and Figure 6 This is explained.

[0055] Figure 5 and Figure 6 They are respectively an image 801 ( Figure 5 )、802( Figure 6 ) example. Figure 5 The image 801 shown includes an image 801a displayed when the force in the pressing direction and the torque around the axis orthogonal to the pressing direction detected by the force sensor 35 are within the numerical ranges respectively predetermined for them. Figure 5 In the example of , the character "OK" is displayed in the image 801a. That is, the image 801 (image 801a) indicates that the tilt of the turning object 400 is within the allowable range, and in the present embodiment, indicates that the turning object 400 is not tilted. In addition, the measurement data 801b of the force sensor 35 may be displayed as shown on the left side of the image 801.

[0056] Figure 6 The image 802 shown includes an image 802a displayed when at least one of the force in the pressing direction and the torque around the axis orthogonal to the pressing direction detected by the force sensor 35 exceeds a predetermined numerical range. Figure 6 In the example, the character "NG" is displayed in the image 802a. That is, the image 802 (image 802a) indicates that the tilt of the turning object 400 exceeds the allowable range, and in this embodiment, it indicates that the turning object 400 is tilted. Figure 5 Similarly to the image 801 shown in the figure, the measurement data 802b of the force sensor 35 may be displayed in the image 802 as shown on the left side of the screen. Figure 6 In the example of FIG. 802 , an illustration 802c is displayed on the lower side of the screen of the image 802a, which allows visual comparison between the turning object 400 with a tilted state and the turning object of the model without a tilt. In the illustration 802c, an illustration 802c1 showing the turning object 400 with a tilted state overlaps an illustration 802c2 showing the turning object of the model without a tilted state. Here, the illustration 802c1 showing the turning object 400 with a tilted state reflects the determined tilt.

[0057] Furthermore, the display device that displays the above-mentioned image may be arranged in a management room that is separated from the turning work site, in addition to being arranged at the turning work site.

[0058] As described above, according to the mounting device 1 of the present embodiment, by detecting with the force sensor 35, it is possible to identify the object 400 being held in a tilted state relative to the turning machine 200. This can help provide the object 400 being held in a non-tilted state relative to the turning machine 200 to the turning process, and can reduce the occurrence of problems with the turned product. In addition, it can be determined that the object 400 is held in a tilted state by the turning machine 200, and the subsequent turning process can be interrupted. This can avoid the danger of the object 400 being inappropriately separated from the turning machine 200 and flying out during the turning process due to the subsequent turning process being performed in a state where the object 400 is held in a tilted state by the turning machine 200.

[0059] In addition, as described above, the structure is provided with a plurality of contact bodies 33, and the contact bodies 33 are in contact with the turning object 400 at a plurality of locations. Thus, when the turning object 400 is tilted, the pressing jig 3 (base 31) is tilted by the contact bodies 33, and the force sensor 35 on the back side can detect the tilt.

[0060] Furthermore, by providing the transmitting unit 8 as described above and having a transmitting function, an operator at the turning processing site can be informed that the turning object 400 is tilted.

[0061] The pressing jig 3 described in the present embodiment can also be applied to a known mounting device for loading a turning object on a turning machine. The control unit 7 and the transmission unit 8 can also be components of the pressing jig 3 .

[0062] <Installation method>

[0063] use Figure 7 A method of attaching the turning object 400 to the turning machine 200 according to the present embodiment will be described. Figure 7 4 is a flowchart showing the process of the method for mounting the turning object 400. The method for mounting the turning object to the turning machine (S10) includes a pressing step (S11) and a detection step (S12).

[0064] The pressing step S11 is a step of pressing the object 400 to the turning machine 200. The pressing step S11 is performed by driving the pressing jig 3 holding the object 400 on the holding plate 32 in the negative direction of the Z axis by the driving mechanism 5 described above.

[0065] Furthermore, the turning machine 200 and the pressing jig 3 are pre-aligned. Specifically, the alignment is performed so that the central axis of the holding plate 201 of the turning machine 200 and the central axis of the holding plate portion 32 of the pressing jig 3 are coaxial (axis parallel to the Z axis). The alignment may be performed in a state where the holding plate portion 32 of the pressing jig 3 does not hold the turning object, or may be performed in a state where the holding plate portion 32 holds the turning object.

[0066] The pressing step S11 is completed when the holding plate 32 of the pressing jig 3 releases the turning object 400. Immediately before the holding plate 32 of the pressing jig 3 releases its grip, the holding plate 201 of the turning machine 200 completes gripping the turning object 400.

[0067] After the pressing step S11 , the detection step S12 is performed. In the detection step S12 , the force in the pressing direction and the torque about the axis orthogonal to the pressing direction acting from the turning machine 200 on the turning object 400 are detected by the force sensor 35 .

[0068] In the detection step S12, by using the force sensor 35 to detect the force in the pressing direction and the torque around the axis orthogonal to the pressing direction, it is possible to determine whether the turning object 400 is tilted. The detection using the force sensor 35 has been described above, but in the detection step S12, the force sensor 35 detects the X-axis direction component, the Y-axis direction component and the Z-axis direction component of the force in the pressing direction, as well as the moment component around the X-axis, the moment component around the Y-axis and the moment component around the Z-axis, and uses these detection results as output signals, which are acquired in the control unit 7, and the control unit 7 determines the tilt of the turning object 400. In addition, the above-mentioned transmission unit 8 ( Figure 2 ) is the sending process performed.

[0069] According to the above-described mounting method (S10), the force sensor 35 is used to detect and identify the object 400 being held in a state where the object 400 is tilted relative to the turning machine 200. This helps to provide the object 400 being held in a state where the object 400 is not tilted relative to the turning machine 200 to a turning process of a subsequent process, and can reduce the occurrence of problems with turned products.

[0070] In addition, in this embodiment, an installation method using the installation device 1 is described, but a well-known installation device can also be used to perform the installation method involved in the present invention, and a force sensor is used to detect the force in the pressing direction acting on the turning object from the turning machine and the torque around the axis orthogonal to the pressing direction.

[0071] <Product Manufacturing Method>

[0072] The above-mentioned method of mounting a turning object on a turning machine can be incorporated into a method of manufacturing a product as a mounting step of mounting a turning object as a base material of a product on a turning machine. Figure 8 One way to illustrate how a product is made. Figure 8 : is a flow chart showing the process of the method for manufacturing the product of this embodiment. Figure 8 As shown, the product manufacturing method (S20) includes a mounting step (S21), a determination step (S22) and a turning step (S23).

[0073] The installation process S21 includes the above Figure 7 A pressing step S11 and a detection step S12 after the pressing step S11.

[0074] In the determination step S22, it is determined whether the inclination of the object to be turned exceeds the permissible range. The inclination of the object to be turned is determined based on the force in the pressing direction and the torque around the axis orthogonal to the pressing direction acting from the turning machine on the object to be turned, which are detected by the force sensor 35 in the detection step S12. The determination step S22 is performed by the control unit 7. If the result of the determination is that the inclination of the object to be turned exceeds the permissible range, the control unit 7 enters the control step S22. Figure 8 In this case, the turning process is not performed (the turning process is not performed). In the case of a tilt that exceeds the allowable range, a predetermined signal may be sent. On the other hand, if the result of the determination is that the tilt of the turning object is within the allowable range (in this embodiment, the turning object 400 is not tilted), the process proceeds to step 140. Figure 8 If the answer is "Yes", the process proceeds to the turning process step S23. In the turning process step S23, the turning object 400 held in a non-inclined manner relative to the turning machine 200 is turned to complete the product. In addition, the turning process can be a well-known turning process, so the description here is omitted.

[0075] According to the above product manufacturing method S20, the object to be turned is held so as not to be tilted relative to the turning machine, and therefore a product to which turning processing with high accuracy has been performed can be manufactured.

[0076] In addition, according to the above manufacturing method S20, during the installation process of the turning object on the turning machine, a process is added to determine whether the turning object is tilted based on the detection result of the force sensor 35, which is a process that has not been used before. In the past, sometimes even when it was installed in a tilted state on the turning machine, turning processing was directly applied, and it was discarded as a defective product in the subsequent manufacturing process. However, according to the structure of the present embodiment, it is possible to determine that the turning object is installed in a tilted state on the turning machine at a stage before the turning process is performed. As a result, the determined turning object can be normally installed on the turning machine through some methods, and the number of turning objects discarded as defective products can be reduced compared to before. Such an effect can also help achieve, for example, Goal 9 of the Sustainable Development Goals (SDGs) advocated by the United Nations, "Building a foundation for industrial and technological innovation (infrastructure, system preparation, etc.)".

[0077] 〔Summarize〕

[0078] The mounting device involved in the first embodiment of the present invention is a mounting device for mounting a turning object on a turning machine. The mounting device is provided with a pressing jig, which presses the turning object against the turning machine, and the pressing jig is installed with: a contact body that can contact the turning object; and a force sensor that detects the force in the pressing direction acting from the turning machine on the turning object and the torque around an axis orthogonal to the pressing direction via the contact body.

[0079] According to the structure of the first method, by detecting with the force sensor, it is possible to determine that the object being turned is held in a state where it is tilted relative to the turning machine. This can help provide the object being turned that is held in a state where it is not tilted relative to the turning machine to the turning process, and can reduce the occurrence of problems with the turned product. In addition, it can be determined that the object being turned is held in a state where it is tilted by the turning machine, and the subsequent turning process can be interrupted. This can avoid the risk of the object being turned improperly detaching from the turning machine and flying out during the turning process due to the subsequent turning process being performed in a state where the object being turned is held in a state where it is tilted by the turning machine.

[0080] The mounting device involved in the second embodiment of the present invention is based on the structure of the mounting device involved in the first embodiment mentioned above, and the pressing jig has: a flat base extending in a direction orthogonal to the pressing direction; and a retaining disk portion, which is mounted on the main surface of the two main surfaces of the base on the side where the contact body is mounted, namely the first main surface, the retaining disk portion is used to hold the turning object, and the force sensor is mounted on the main surface of the two main surfaces of the base on the side opposite to the first main surface, namely the second main surface side, the contact body is a rod-shaped structure extending along the pressing direction, and a plurality of the contact bodies are arranged at equal intervals along a virtual circle centered on the retaining disk portion.

[0081] According to the structure of the second embodiment, the contact body is in contact with the turning object at multiple locations. When the turning object is tilted, the pressing jig is tilted by the contact body, so that the force sensor on the back side can detect the tilt.

[0082] The installation device involved in the third embodiment of the present invention is based on the structure of the installation device involved in the first embodiment or the second embodiment mentioned above, and further includes a sending unit. When at least one of the force in the pressing direction and the torque around the axis orthogonal to the pressing direction detected by the force sensor is a value exceeding a prescribed numerical range, the sending unit sends a prescribed signal.

[0083] According to the configuration of the third embodiment, by providing the transmission function, the worker at the turning processing site can be informed that the turning object 400 is tilted.

[0084] A mounting device according to a fourth aspect of the present invention is the mounting device according to any one of the first to third aspects, wherein the object to be turned is a disk-shaped casting having a draft angle.

[0085] According to the structure of the fourth embodiment, in the case of a disc-shaped casting having a draft angle, when the casting is clamped in the clamping object device through the portion having the draft angle, the casting may be tilted due to a slight positional deviation. An example of a disc-shaped casting is a disc brake plate. When clamping such a disc-shaped casting having a draft angle, if the mounting device of one embodiment of the present invention is used, it is possible to determine whether there is tilt and only perform turning processing on the casting (turning object) clamped without tilting.

[0086] In order to solve the above-mentioned problem, the installation method involved in the fifth mode of the present invention is an installation method for installing a turning object on a turning machine, and the installation method includes: a pressing process, pressing the turning object on the turning machine; and a detection process, after the pressing process, detecting the force in the pressing direction acting on the turning object from the turning machine and the torque around an axis orthogonal to the pressing direction by a force sensor.

[0087] According to the structure of the fifth mode, by detecting with the force sensor, it is possible to determine that the object being turned is held in a state where it is tilted relative to the turning machine. This can help provide the object being turned that is held in a state where it is not tilted relative to the turning machine to the turning process, and can reduce the occurrence of problems with the turned product. In addition, it can be determined that the object being turned is held in a state where it is tilted, and the subsequent turning process can be interrupted. This can avoid the risk of the object being turned improperly detaching from the turning machine and flying out during the turning process due to the subsequent turning process being performed in a state where the object being turned is held in a state where it is tilted by the turning machine.

[0088] In order to solve the above-mentioned problems, a sixth aspect of the present invention relates to a method for manufacturing a product including a mounting step in which the turning object, which is a base material of the product, is mounted on the turning machine using the mounting method described in the fifth aspect.

[0089] According to the configuration of the sixth aspect, the object to be turned is clamped so as not to be tilted relative to the turning machine, and thus a product can be manufactured without performing turning processing with high accuracy.

[0090] A product manufacturing method according to a seventh aspect of the present invention is based on the structure of the product manufacturing method according to the sixth aspect, wherein the product is a disc brake disc.

[0091] [Additional Notes]

[0092] The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims. Embodiments obtained by appropriately combining technical methods disclosed in different embodiments are also included in the protection scope of the present invention.

Claims

1. A mounting device for mounting a turning object on a turning machine, The mounting device includes a pressing jig, and the pressing jig presses the turning object against the turning machine. The pressing fixture is equipped with: a contact body capable of contacting the turning object; and A force sensor detects, via the contact body, a force in a pressing direction and a torque about an axis orthogonal to the pressing direction, which force acts from the turning machine on the turning object.

2. The mounting device according to claim 1, wherein: The pressing fixture has: a flat plate-shaped base extending in a direction orthogonal to the pressing direction; and a holding plate portion mounted on the first main surface of the two main surfaces of the base portion on the side where the contact body is mounted, the holding plate portion being used to hold the turning object, The force sensor is mounted on the second main surface side, which is the main surface opposite to the first main surface, of the two main surfaces of the base. The contact body is a rod-shaped structure extending in the pressing direction, and a plurality of the contact bodies are provided at equal intervals along a virtual circle centered on the holding disk portion.

3. The mounting device according to claim 1, wherein: The device further includes a transmitting unit configured to transmit a predetermined signal when at least one of the force in the pressing direction and the torque around an axis perpendicular to the pressing direction detected by the force sensor is a value outside a predetermined numerical range.

4. The mounting device according to claim 1, wherein: The turning object is a disk-shaped casting having a draft angle.

5. A mounting method for mounting a turning object on a turning machine, the mounting method comprising: A pressing step of pressing the turning object against the turning machine; as well as A detection step is performed after the pressing step, wherein a force in a pressing direction and a torque around an axis orthogonal to the pressing direction acting from the turning machine to the turning object are detected by a force sensor.

6. A method for manufacturing a product, wherein: The method comprises a mounting step in which a turning object as a base material of a product is mounted on a turning machine, The installation process includes: A pressing step of pressing the turning object against the turning machine; and A detection step is performed after the pressing step, wherein a force in a pressing direction and a torque around an axis orthogonal to the pressing direction acting from the turning machine to the turning object are detected by a force sensor.

7. The method for manufacturing a product according to claim 6, wherein: The product in question is a disc brake pad.

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