Operating panel for machine tools

Abstract

An operation panel for a machine tool includes a first housing (31U) that houses a cooling target object, an air supply device (61) that is disposed inside the first housing (31U), and an air guide member (81) that forms an air flow path (90) inside the first housing (31U) and guides air supplied from the air supply device (61) toward the cooling target object via the air flow path (90). The air flow path (90) has an enlarged flow path portion (150) in which a flow path area of the air flow path (90) increases from an upstream side of an air flow toward a downstream side.

Description

Technical Field

[0001] This invention relates to an operating panel for machine tools. Background Technology

[0002] For example, Japanese Patent Publication No. 2016-530658 (Patent Document 1) discloses a control console for a CNC machine tool. The control console includes: a housing; a screen disposed in the housing on the front side; at least one circuit board having electrical components; and a cooling channel through which fluid can pass.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Publication No. 2016-530658 Summary of the Invention

[0006] The problem the invention aims to solve

[0007] As disclosed in Patent Document 1 above, there is a known type of control panel for machine tools. In such a control panel for machine tools, various cooling objects that rise in temperature as the machine tool operates are housed within the control panel housing. Therefore, it is required to efficiently cool these cooling objects within the limited space inside the housing.

[0008] Therefore, the purpose of this invention is to solve the above-mentioned problems and provide an operating panel for a machine tool that can efficiently cool objects housed in a housing.

[0009] Solution for solving the problem

[0010] The machine tool control panel according to the present invention comprises: a housing for housing an object to be cooled; an air supply device disposed within the housing; and an air guide member forming an airflow path within the housing, guiding air supplied from the air supply device toward the object to be cooled via the airflow path. The airflow path has an enlarged flow path portion whose flow path area increases from the upstream side of the airflow toward the downstream side.

[0011] In this machine tool control panel, the expanded flow path section is configured such that the flow path area of ​​the airflow increases from the upstream side to the downstream side, thus allowing air to flow smoothly within the expanded flow path section. This increases the airflow towards the object being cooled, thereby improving the cooling efficiency of the object.

[0012] Furthermore, preferably, the air supply device has multiple blade sections arranged at intervals around a predetermined axis, and rotates around the predetermined axis. The flow path expansion section extends circumferentially along the predetermined axis.

[0013] With this configuration of the machine tool control panel, air can flow smoothly in the enlarged flow path that extends circumferentially along a predetermined axis.

[0014] Furthermore, it is preferable that the air supply device is an axial flow type that supplies air along a predetermined axis. The enlarged flow path section extends circumferentially along the predetermined axis at a position opposite to the multiple blade section along the predetermined axis.

[0015] According to the control panel for machine tools constructed in this way, air can flow smoothly in the enlarged flow path that extends circumferentially along a predetermined axis at a position opposite to the multiple blade sections.

[0016] Furthermore, preferably, the air supply device also includes: a central shaft portion having a cylindrical shape centered on a predetermined axis, disposed radially inside the predetermined axis relative to the plurality of blade portions; a motor housed in the central shaft portion; a fan protector surrounding the outer periphery of the plurality of blade portions; and a rib extending between the central shaft portion and the fan protector, wherein wiring from the motor is routed. The air guide member has a wall portion disposed at a position overlapping the rib portion when viewed axially along the predetermined axis. The expanded flow path portion extends around the central shaft portion, originating from a space on one side separated by the wall portion, and extends away from the central shaft portion via a space on the other side separated by the wall portion when viewed axially along the predetermined axis.

[0017] According to the control panel for machine tools configured in this way, air can flow smoothly from the space on one side of the wall through the space on the other side of the wall into the enlarged flow path extending away from the central axis of the air supply device. At this time, the wall is positioned in the air supply device to overlap with the ribs that obstruct air supply, so the air supply volume from the air supply device to the air flow path can be maintained regardless of the presence or absence of the wall.

[0018] Furthermore, it is preferable that the expanded flow path section has a first interval section in which air supplied from the air supply device flows into the first interval section, in which the flow path depth along the predetermined axis increases from the upstream side of the air flow to the downstream side, and the flow path width in the radial direction of the predetermined axis is constant.

[0019] In the machine tool control panel configured in this way, the flow path area of ​​the enlarged flow path section gradually increases with the increase of the flow path depth in the first section, thus enabling smooth airflow. Furthermore, since the flow path width is constant in the first section, it is possible to prevent the air guide member from becoming excessively large in the radial direction of the predetermined axis.

[0020] In addition, preferably, the expanded flow path section also has a second section into which air supplied from the air supply device flows. The second section is located downstream of the air flow compared to the first section. In the second section, the flow path depth along the axial direction of the predetermined axis and the flow path width in the radial direction of the predetermined axis increase as the air flow moves from the upstream side to the downstream side.

[0021] In the machine tool control panel constructed in this way, the flow area of ​​the expanded flow path section in the second section increases rapidly with the increase of the flow path depth and the flow path width, thus enabling a smoother airflow.

[0022] In addition, preferably, the expanded flow path section also has a third section, into which air supplied from the air supply device flows. The third section is located downstream of the air flow compared to the second section. In the third section, the flow path depth along the predetermined axis is constant, and the flow path width in the radial direction of the predetermined axis increases as the air flow moves from the upstream side to the downstream side.

[0023] In the machine tool control panel configured in this way, the flow path area of ​​the expanded flow path section gradually increases with the increase of the flow path width in the third section, thus enabling smooth airflow. Furthermore, the flow path depth is constant in the third section, thus preventing the air guide member from becoming excessively large along the predetermined axis.

[0024] Furthermore, preferably, the machine tool's control panel also includes electronic components. The object to be cooled is a heat sink arranged and connected to the electronic components in an axial direction along a predetermined axis. The air guide member has: a first flat portion connected to an air supply device, extending in a plane direction orthogonal to the predetermined axis; a second flat portion having an opening that opens the airflow path radially outward along the predetermined axis, positioned at a location separate from the first flat portion in the radial direction of the predetermined axis and offset from the first flat portion in the axial direction of the predetermined axis, extending in a plane direction orthogonal to the predetermined axis; and an inclined portion extending between the first flat portion and the second flat portion in an inclined direction inclined relative to the predetermined axis. The air supply device, the second flat portion, and the heat sink are arranged in the listed order from the inner radial direction to the outer radial direction of the predetermined axis. The first flat portion and the electronic components are arranged in the listed order from the inner radial direction to the outer radial direction of the predetermined axis.

[0025] With such a configuration, the machine tool control panel can accommodate the air supply device, air guide component, electronic components, and heat sink in a compact space along a predetermined axis.

[0026] The effects of the invention

[0027] As described above, according to the present invention, it is possible to provide an operating panel for a machine tool that can efficiently cool objects housed within a housing. Attached Figure Description

[0028] Figure 1 This is a perspective view of a machine tool using the control panel in Embodiment 1 of the present invention.

[0029] Figure 2 It means Figure 1 A 3D view of the control panel.

[0030] Figure 3 It means along Figure 2 A cross-sectional view of the control panel viewed in the direction of sight along line III-III.

[0031] Figure 4 It means Figure 3 A three-dimensional view of the air guiding components and air supply device.

[0032] Figure 5 It means along Figure 4 The top view of the air guide component and air supply device, viewed in the direction indicated by arrow V.

[0033] Figure 6 It means Figure 3 A three-dimensional view of the air supply device.

[0034] Figure 7 It means Figure 3 Another perspective view of the air supply device in the image.

[0035] Figure 8 This is a top view showing the internal structure of the air guide component.

[0036] Figure 9 It means along Figure 8 A cross-sectional view of the air guide component viewed in the direction of sight along line IX-IX.

[0037] Figure 10 It means along Figure 8 A cross-sectional view of the air guide component viewed from the XX line in the direction of sight.

[0038] Figure 11 It means along Figure 8 A cross-sectional view of the air guide component viewed in the direction of sight along the XI-XI line.

[0039] Figure 12 It means along Figure 8 A cross-sectional view of the air guide component viewed in the direction of sight along line XII-XII.

[0040] Figure 13It means along Figure 8 A cross-sectional view of the air guide component viewed in the direction of sight along line XIII-XIII.

[0041] Figure 14 This is a top view showing the internal structure of the air guide component of the control panel in Embodiment 2 of the present invention.

[0042] Figure 15 It means along Figure 14 A cross-sectional view of the air guide component viewed in the direction of sight along the XV-XV line.

[0043] Figure 16 It means along Figure 14 A cross-sectional view of the air guide component viewed in the direction of sight along the XVI-XVI line.

[0044] Figure 17 It means along Figure 14 A cross-sectional view of the air guide component viewed in the direction of sight along line XVII-XVII.

[0045] Figure 18 It means along Figure 14 A cross-sectional view of the air guide component viewed in the direction of sight along the XVIII-XVIII line.

[0046] Figure 19 It means along Figure 14 A cross-sectional view of the air guide component viewed in the direction of sight along the XIX-XIX line. Detailed Implementation

[0047] Embodiments of the present invention will be described with reference to the accompanying drawings. Furthermore, in the drawings referred to below, the same or equivalent components are labeled with the same reference numerals.

[0048] (Implementation Method 1)

[0049] Figure 1 This is a perspective view of a machine tool using the control panel in Embodiment 1 of the present invention. (Refer to...) Figure 1 Machine tool 100 is a machining center that performs workpiece machining by bringing a rotating cutting tool into contact with the workpiece; more specifically, it is a horizontal machining center in which the axis of rotation of the cutting tool extends in the horizontal direction. Machine tool 100 is an NC (Numerically Controlled) machine tool that automates various actions for workpiece machining using numerical control performed by a computer.

[0050] The machine tool 100 has a cover 21. The cover 21 divides the space into a machining area and forms the appearance of the machine tool 100. The machining area is the space where workpieces are machined, and it is sealed in a way that prevents foreign matter such as chips or cutting oil generated during workpiece machining from leaking to the outside of the machining area.

[0051] The cover 21 has a front cover 23 and a door 25. An opening 26 is provided in the front cover 23. The opening 26 opens the processing area to the external space. The door 25 is provided in the opening 26. The door 25 can be in an open position (open state) and a closed position (closed state). Figure 1 The sliding motion is shown between the positions of the door section 25 shown.

[0052] The machine tool 100 also has an operation panel 10. The operation panel 10 is located outside the machining area. The operation panel 10 is mounted on the front cover 23. The operation panel 10 is disposed adjacent to the opening 26.

[0053] Furthermore, the control panel in this invention is not limited to horizontal machining centers. For example, it can also be applied to lathes, vertical machining centers, composite machining centers with turning and milling functions, or AM / SM hybrid machining centers that can perform additional machining (AM) and subtractive machining (SM) of workpieces.

[0054] Next, the overall structure of the control panel 10 will be explained. Figure 2 It means Figure 1 A 3D view of the control panel. (Refer to...) Figure 2 The control panel 10 has a housing 31. The housing 31 constitutes the appearance of the control panel 10.

[0055] The housing 31 has a first housing 31U and a second housing 31L. The first housing 31U is positioned above the second housing 31L. The first housing 31U is rotatably connected to the second housing 31L about a rotational axis 120. Both the first housing 31U and the second housing 31L have a flat plate shape. Both the first housing 31U and the second housing 31L have a flat plate shape parallel to a plane including the rotational axis 120.

[0056] The control panel 10 includes various operating parts 32 such as buttons, dials, or switches used by the operator when operating the machine tool 100, and a display part 36 for displaying the machining status of the workpiece in the machine tool 100. The operating parts 32 such as buttons, dials, or switches are provided in the second housing 31L. The display part 36 is provided in the first housing 31U.

[0057] Figure 3 It means along Figure 2 A cross-sectional view of the control panel viewed in the direction of sight along line III-III. (Refer to...) Figure 2 and Figure 3 The first housing 31U has a counter wall 52. The counter wall 52 is disposed on the back side of the display unit 36. The counter wall 52 extends in a plane direction orthogonal to the thickness direction of the first housing 31U. The counter wall 52 and the display unit 36 ​​are arranged such that they are spaced apart from each other in the thickness direction of the first housing 31U. The counter wall 52 and the display unit 36 ​​together divide and form an internal space for accommodating the air supply device 61 and the like, which will be discussed later.

[0058] The operation panel 10 also has a partition wall portion 55. The partition wall portion 55 is disposed within the first housing 31U. The partition wall portion 55 is spaced apart from the opposing wall 52. The partition wall portion 55 extends parallel to the opposing wall 52. The distance in the thickness direction between the opposing wall 52 and the partition wall portion 55 in the first housing 31U is smaller than the distance in the thickness direction between the display portion 36 and the partition wall portion 55 in the first housing 31U.

[0059] An air passage 54 is formed between the opposing wall 52 and the partition wall 55. An air inlet 53 is provided in the opposing wall 52. The air inlet 53 is formed by a through hole that penetrates the opposing wall 52. The air inlet 53 connects the air passage 54 to the outside of the first housing 31U.

[0060] The operation panel 10 also includes a display device 41. The display device 41 is composed of a liquid crystal panel or an organic EL display panel. The display device 41 has a thin plate shape and is arranged parallel to a plane orthogonal to the thickness direction of the first housing 31U. The display section 36 is composed of the display surface of the display device 41.

[0061] The operation panel 10 also includes an electronic component 43 and a heat sink 47. The electronic component 43 and the heat sink 47 are disposed between the display device 41 and the partition wall 55 in the thickness direction of the first housing 31U. The electronic component 43 is composed of a CPU (Central Processing Unit). The electronic component 43 is mounted on a substrate 42. The substrate 42 is disposed parallel to the opposing wall 52 and the partition wall 55. The electronic component 43 is disposed on the opposite side of the display device 41 relative to the substrate 42.

[0062] The heat sink 47 is made of a metal such as aluminum. The heat sink 47 is housed within the first housing 31U. The heat sink 47 is positioned between the electronic component 43 and the partition wall 55 in the thickness direction of the first housing 31U.

[0063] The heat sink 47 is connected to the electronic component 43. The heat sink 47 and the electronic component 43 are thermally connected. Grease or thermally conductive sheets may also be placed between the heat sink 47 and the electronic component 43. The heat sink 47 is arranged to overlap with the electronic component 43 in the thickness direction of the first housing 31U (the axial direction of the central axis 130 discussed later).

[0064] The heat sink 47 has a heat sink 44 and multiple fins 45. The heat sink 44 is arranged parallel to the opposing wall 52 and the partition wall 55. The heat sink 44 faces the substrate 42 across the electronic component 43. The heat sink 44 is connected to the electronic component 43. The multiple fins 45 are arranged between the partition wall 55 and the heat sink 44 in the thickness direction of the first housing 31U. The multiple fins 45 are integrally formed with the heat sink 44. The multiple fins 45 extend from the heat sink 44 toward the partition wall 55. The multiple fins 45 are arranged in a spaced manner in a direction orthogonal to the thickness direction of the first housing 31U.

[0065] The control panel 10 also includes an air supply device 61 and an air guide member 81. The air supply device 61 and the air guide member 81 are disposed within the first housing 31U. The air supply device 61 and the air guide member 81 are positioned in the thickness direction of the first housing 31U between the display device 41 and the partition wall portion 55. The air supply device 61 is connected to the air guide member 81. The air supply device 61 is mounted on the partition wall portion 55. The air supply device 61 faces the opposing wall 52 across an air passage 54. The air passage 54 communicates with the intake side of the air supply device 61.

[0066] The air guide member 81 is used to form an airflow path 90 within the first housing 31U. The air guide member 81 is composed of a duct that forms the airflow path 90.

[0067] The air guide member 81 is provided with an upstream opening 84 and a downstream opening 85. The air flow path 90 extends between the upstream opening 84 and the downstream opening 85. The upstream opening 84 is provided at the end of the air flow path 90 on the upstream side of the airflow. The air flow path 90 is connected to the ejection side of the air supply device 61 via the upstream opening 84.

[0068] The downstream opening 85 is located at the downstream end of the airflow path 90. The downstream opening 85 opens into the space between the heat sink 44 and the partition wall 55. The downstream opening 85 opens opposite the heat sink 47. The downstream opening 85 opens opposite the multiple fins 45.

[0069] Driven by the air supply device 61, air from outside the first housing 31U is introduced into the air passage 54 within the first housing 31U via the air inlet 53. The air flowing through the air passage 54 is then delivered from the air supply device 61 to the air flow path 90. The air passes through the air flow path 90 and is guided towards the radiator 47 (multiple fins 45). The air, heated by heat exchange with the radiator 47, bypasses the end 57 of the partition wall 55 and flows out into the air passage 54. The air flowing out of the air passage 54 is discharged to the outside of the first housing 31U via an exhaust port (not shown) provided to the opposite wall 52.

[0070] Next, a more detailed description of the construction of the air supply device 61 and the air guide component 81 will be provided. Figure 4 It means Figure 3 A three-dimensional view of the air guiding components and air supply device. Figure 5 It means along Figure 4 The top view of the air guide component and air supply device, viewed in the direction indicated by arrow V. Figure 6 and Figure 7 It means Figure 3 A three-dimensional view of the air supply device. Figure 6 The diagram shows an air supply device 61 on the intake side, in Figure 7 The image shows an air supply device 61 on the ejection side.

[0071] Reference Figures 3-7 The air supply device 61 has a multi-blade section 66, a central shaft section 63, and a motor 62.

[0072] Multiple blade sections 66 are arranged at intervals around a central axis 130, which is an imaginary straight line. The multiple blade sections 66 are equally spaced around the central axis 130. The central axis 130 extends in the thickness direction of the first housing 31U. The axial direction of the central axis 130 corresponds to the thickness direction of the first housing 31U.

[0073] The air supply device 61 is an axial flow type that supplies air along the central axis 130. The air supply device 61 is a propeller fan. The air supply device 61 has a flat plate shape with the central axis 130 oriented in the thickness direction. The end face of the air supply device 61 facing in one direction along the central axis 130 corresponds to the intake side, and the end face of the air supply device 61 facing in the opposite direction along the central axis 130 corresponds to the exhaust side.

[0074] A central shaft portion 63 is disposed on the shaft of the central axis 130. The central shaft portion 63 has a cylindrical shape centered on the central axis 130. The central shaft portion 63 is disposed inside the radial direction of the central axis 130 relative to the multiple blade portions 66.

[0075] The central shaft portion 63 includes a first disc portion 64, a second disc portion 67, and a cylindrical portion 65. The first disc portion 64 and the second disc portion 67 are disc-shaped with a central axis 130 as the center. The first disc portion 64 and the second disc portion 67 are arranged such that they are spaced apart from each other in the axial direction of the central axis 130. The first disc portion 64 is disposed on the suction side, and the second disc portion 67 is disposed on the discharge side.

[0076] The cylindrical portion 65 has a cylindrical shape centered on the central axis 130. The cylindrical portion 65 is connected to the first disk portion 64 at one end along the axial direction of the central axis 130. The cylindrical portion 65 is separate from the second disk portion 67. The root of the multi-blade portion 66 is connected to the cylindrical portion 65.

[0077] Motor 62 is housed in central shaft portion 63. Motor 62 is positioned within the space enclosed by first disc portion 64, second disc portion 67, and cylindrical portion 65. Motor 62 is supported by second disc portion 67. The output shaft of motor 62 is connected to first disc portion 64. Rotation from motor 62 is transmitted to first disc portion 64 and cylindrical portion 65, thereby causing the multi-blade portion 66 to rotate about central axis 130. Figure 5 Rotate in the direction indicated by arrow 140 shown in the diagram.

[0078] The air supply device 61 also includes a fan protector 70 and multiple ribs 68. The fan protector 70 is arranged to surround the outer periphery of multiple blade portions 66. The fan protector 70 is positioned radially outward from the central shaft portion 63 along the central axis 130. Multiple blade portions 66 are arranged in the radial space 72 between the central shaft portion 63 and the fan protector 70 along the central axis 130. A gap is provided between the fan protector 70 and the multiple blade portions 66 in the radial direction of the central axis 130.

[0079] Multiple ribs 68 extend between the fan protector 70 and the central shaft portion 63. The multiple ribs 68 are arranged with a distance between them in the circumferential direction of the central axis 130. The ribs 68 extend from the inner radial direction to the outer radial direction of the central axis 130, offset from the circumferential direction of the central axis 130. The inner radial end of the rib 68 is connected to the outer periphery of the second disk portion 67. The outer radial end of the rib 68 is connected to the fan protector 70.

[0080] Multiple ribs 68 include rib 68j. For example... Figure 7As shown, a wiring 71 extending from the motor 62 is provided in rib 68j. Wiring 71 includes power lines and signal lines for the motor 62. Wiring 71 passes through rib 68j from the central shaft portion 63 housing the motor 62 and leads to the fan protector 70. The circumferential width of the central axis 130 of rib 68j is larger than the circumferential width of the central axis 130 of rib 68 other than rib 68j.

[0081] The air guide member 81 has a first flat portion 86, an inclined portion 87, and a second flat portion 88. The first flat portion 86 and the second flat portion 88 have a flat plate shape in which the axial direction of the central axis 130 is the thickness direction. The inclined portion 87 connects the first flat portion 86 and the second flat portion 88. The inclined portion 87 has a flat plate shape extending in an inclined direction relative to the first flat portion 86 and the second flat portion 88.

[0082] An air supply device 61 is connected to the first planar portion 86. The first planar portion 86 extends in a plane direction orthogonal to the central axis 130. The air supply device 61 is arranged to overlap the first planar portion 86 in the axial direction of the central axis 130. An upstream opening 84 is provided on the first planar portion 86. The upstream opening 84 opens the air flow path 90 in the axial direction of the central axis 130. The upstream opening 84 opens in the axial direction of the central axis 130 within the area projected by the central axis portion 63 and the space 72.

[0083] The second planar portion 88 is positioned separately from the first planar portion 86 in the radial direction of the central axis 130, and offset from the first planar portion 86 in the axial direction of the central axis 130. The second planar portion 88 extends in a planar direction orthogonal to the central axis 130. A downstream opening 85 is provided on the second planar portion 88. The downstream opening 85 causes the airflow path 90 to open outward in the radial direction of the central axis 130.

[0084] The second planar portion 88 is positioned offset from the first planar portion 86 in the axial direction of the central axis 130, towards the partition wall portion 55. The second planar portion 88 and the first planar portion 86 together form a stepped shape in the axial direction of the central axis 130. The air supply device 61 is disposed in the stepped portion formed by the first planar portion 86 and the second planar portion 88.

[0085] An inclined portion 87 is disposed between the first planar portion 86 and the second planar portion 88 in the radial direction of the central axis 130. The inclined portion 87 extends in an inclined direction relative to the central axis 130 between the first planar portion 86 and the second planar portion 88.

[0086] The air supply device 61, the second flat portion 88, and the radiator 47 (multiple fins 45) are arranged in the listed order from the inner side to the outer side of the radial direction of the central axis 130. The air supply device 61, the second flat portion 88, and the radiator 47 (multiple fins 45) are arranged in the same plane orthogonal to the central axis 130. The second flat portion 88 is arranged opposite the air supply device 61 in the radial direction of the central axis 130, separated by an inclined portion 87. The radiator 47 (multiple fins 45) is arranged opposite the second flat portion 88 in the radial direction of the central axis 130.

[0087] The first planar portion 86 and the electronic component 43 are arranged in the listed order from the inner side of the radial direction of the central axis 130 to the outer side of the radial direction. The first planar portion 86 and the electronic component 43 are disposed in the same plane orthogonal to the central axis 130. The electronic component 43 is disposed such that it is opposite to the other electronic component 43 in the radial direction of the central axis 130, separated by an inclined portion 87.

[0088] The second flat portion 88 is arranged to overlap the heat sink 44 in the axial direction of the central axis 130.

[0089] With this structure, the stepped shape formed by the first flat portion 86 and the second flat portion 88 of the air guide member 81 allows the air supply device 61, the air guide member 81, the electronic components 43, and the heat sink 47 to be arranged in a compact space along the axial direction of the central axis 130. As a result, the first housing 31U can be made thinner.

[0090] Next, the specific structure of the airflow path 90 provided in the air guide component 81 will be described. Figure 8 This is a top view showing the internal structure of the air guide component. Figure 9 It means along Figure 8 A cross-sectional view of the air guide component viewed in the direction of sight along line IX-IX. Figure 10 It means along Figure 8 A cross-sectional view of the air guide component viewed from the XX line in the direction of sight. Figure 11 It means along Figure 8 A cross-sectional view of the air guide component viewed in the direction of sight along the XI-XI line. Figure 12 It means along Figure 8 A cross-sectional view of the air guide component viewed in the direction of sight along line XII-XII. Figure 13 It means along Figure 8 A cross-sectional view of the air guide component viewed in the direction of sight along line XIII-XIII.

[0091] Reference Figures 4 to 13 The airflow path 90 has a swirling section 90A and an extension section 90B.

[0092] The swirl section 90A opens axially toward the central axis 130 via the upstream side opening 84. Air supplied from the air supply device 61 flows into the swirl section 90A. The extension section 90B is positioned downstream of the swirl section 90A in the airflow path 90. The extension section 90B opens radially outward toward the central axis 130 via the downstream side opening 85.

[0093] The swivel section 90A extends circumferentially along the central axis 130. The swivel section 90A extends circumferentially along the central axis 130 at a position opposite to the multi-blade section 66 along the axial direction of the central axis 130. The swivel section 90A extends circumferentially along the central axis 130 at a position opposite to the space 72 along the axial direction of the central axis 130.

[0094] A swirling section 90A is provided on the first planar section 86. The air guide member 81 (first planar section 86) has a top 160, an inner peripheral sidewall section 161, and an outer peripheral sidewall section 162.

[0095] The top 160 has a disk shape centered on the central axis 130. The top 160 is axially opposite the central shaft portion 63 (second disk portion 67) of the air supply device 61 along the central axis 130. The inner peripheral sidewall portion 161 extends from the periphery of the top 160 in an axial direction away from the air supply device 61 along the central axis 130. The inner peripheral sidewall portion 161 extends circumferentially outwards from the central axis 130 in a radial direction. Regardless of its circumferential position, the inner peripheral sidewall portion 161 has a fixed radius centered on the central axis 130.

[0096] The outer peripheral sidewall portion 162 extends radially inward toward the central axis 130 in the circumferential direction. The outer peripheral sidewall portion 162 is opposite to the inner peripheral sidewall portion 161 in the radial direction of the central axis 130. The swivel portion 90A is formed between the inner peripheral sidewall portion 161 and the outer peripheral sidewall portion 162 in the radial direction of the central axis 130.

[0097] The extension 90B extends from the downstream end of the airflow in the airflow path 90 of the swivel section 90A toward the downstream opening 85. The extension 90B extends from the radially inner side of the central axis 130 toward the radially outer side.

[0098] An extension 90B is provided at the inclined portion 87 and the second planar portion 88. The air guide member 81 (inclined portion 87, second planar portion 88) has a first sidewall portion 163 and a second sidewall portion 164. The first sidewall portion 163 and the second sidewall portion 164 are opposite to each other. The first sidewall portion 163 extends from the wall portion 165 (described later) toward the opening edge of the downstream opening portion 85. The second sidewall portion 164 extends from the outer peripheral sidewall portion 162 toward the opening edge of the downstream opening portion 85.

[0099] An extension 90B is formed between the first sidewall portion 163 and the second sidewall portion 164. The distance between the first sidewall portion 163 and the second sidewall portion 164 increases as the airflow in the airflow path 90 moves from the upstream side to the downstream side.

[0100] The air guide member 81 (first planar portion 86) also has a wall portion 165. The wall portion 165 extends between the inner circumferential side wall portion 161 and the first side wall portion 163. The wall portion 165 extends from the inner side of the central axis 130 in the radial direction toward the outer side in the radial direction, while deviating in the circumferential direction of the central axis 130. The circumferential width of the wall portion 165 in the central axis 130 direction is smaller than the circumferential width of the rib 68j in the central axis 130 direction.

[0101] like Figure 5 As shown, the wall portion 165 is positioned to overlap with the rib portion 68j when viewed axially along the central axis 130. Alternatively, the wall portion 165 and the rib portion 68j may partially overlap when viewed axially along the central axis 130.

[0102] The airflow path 90 has an enlarged flow path section 150. The flow path area of ​​the enlarged flow path section 150 increases from the upstream side of the airflow toward the downstream side. The flow path area of ​​the enlarged flow path section 150 refers to the opening area of ​​the enlarged flow path section 150 when it is cut by a plane orthogonal to the airflow in the airflow path 90.

[0103] In this embodiment, the flow path 150 extends across the entire range of the swirl section 90A and the extension section 90B. For example... Figure 5 and Figure 8 As shown, the enlarged flow path 150, when viewed axially along the central axis 130, extends around the central axis 63 starting from the space 210 on one side of the partition wall 165, and extends away from the central axis 63 via the space 220 on the other side of the partition wall 165. The spaces 210 and 220 are provided on both sides of the partition wall 165 when viewed axially along the central axis 130.

[0104] The direction in which the enlarged flow path section 150 (rotation section 90A) rotates toward the space 220 with the central axis 130 as the center and the space 210 as the starting point is the same as the rotation direction of the multiple blade section 66 in the air supply device 61.

[0105] With this structure, the enlarged flow path section 150 is configured such that the flow path area of ​​the air flow path 90 increases from the upstream side of the air flow to the downstream side, so that air can flow smoothly in the enlarged flow path section 150.

[0106] Furthermore, in this embodiment, in the swirl section 90A, air supplied from the air supply device 61 flows in axially along the central axis 130, and changes direction circumferentially along the central axis 130, flowing from the upstream side to the downstream side of the airflow in the airflow path 90. In this case, the flow rate of the airflow at the swirl section 90A increases from the upstream side of the airflow in the airflow path 90 towards the downstream side; therefore, the pressure on the downstream side of the airflow is greater than the pressure on the upstream side. In contrast, the flow path area of ​​the swirl section 90A increases from the upstream side of the airflow towards the downstream side, thus allowing air to flow smoothly in the swirl section 90A.

[0107] For the reasons stated above, the airflow supplied to the heat sink 47 can be increased, thereby improving the cooling efficiency of the heat sink 47 and, consequently, the electronic components 43.

[0108] Furthermore, in this embodiment, viewed axially along the central axis 130, the wall portion 165 is positioned to overlap with the rib 68j that obstructs airflow from the air supply device 61 to the airflow path 90. Therefore, the airflow from the air supply device 61 to the airflow path 90 can be maintained regardless of the presence or absence of the wall portion 165.

[0109] Reference Figures 8 to 13 The enlarged flow path section 150 (revolving section 90A) has a first section 91, a second section 92, and a third section 93.

[0110] Air supplied from the air supply device 61 flows axially along the central axis 130 into the first section 91, the second section 92, and the third section 93. The second section 92 is positioned downstream of the first section 91 in the airflow path 90. The second section 92 is connected to the downstream end of the first section 91 in the airflow path 90. The third section 93 is positioned downstream of the second section 92 in the airflow path 90. The third section 93 is connected to the downstream end of the second section 92 in the airflow path 90.

[0111] like Figures 8-10As shown, the first interval 91 spans an angle range of less than 90° centered on the central axis 130, starting from the space 210. The flow area of ​​the enlarged flow path 150 in the first interval 91 increases from the upstream side of the airflow toward the downstream side (S1 < S2). In the first interval 91, the axial flow path depth of the central axis 130 increases from the upstream side of the airflow in the airflow path 90 toward the downstream side (H1 < H2), while the radial flow path width of the central axis 130 remains constant (B1 = B2).

[0112] In the first section 91, the radius of the outer peripheral sidewall 162 centered on the central axis 130 is constant. The distance between the inner peripheral sidewall 161 and the outer peripheral sidewall 162 is constant regardless of their positions along the airflow direction in the airflow path 90.

[0113] like Figure 8 , Figure 10 as well as Figure 11 As shown, the second section 92 spans a 90° angular range centered on the central axis 130. The flow area of ​​the enlarged flow path section 150 in the second section 92 increases from the upstream side of the airflow toward the downstream side (S2 < S3). In the second section 92, the axial flow path depth of the central axis 130 and the radial flow path width of the central axis 130 increase from the upstream side of the airflow in the airflow path 90 toward the downstream side (H2 < H3, B2 < B3).

[0114] In the second section 92, the radius of the outer peripheral sidewall 162 centered on the central axis 130 increases as the airflow from the upstream side to the downstream side in the airflow path 90.

[0115] like Figure 8 , Figures 11-13 As shown, the third section 93 spans an angle range exceeding 90° and less than 180° centered on the central axis 130. The flow path area of ​​the enlarged flow path section 150 in the third section 93 increases from the upstream side of the airflow toward the downstream side (S3 < S4 < S5). In the third section 93, the flow path depth along the axial direction of the central axis 130 is constant, while the flow path width in the radial direction of the central axis 130 increases from the upstream side of the airflow in the airflow path 90 toward the downstream side (H3 = H4 = H5, B3 < B4 < B5).

[0116] In the third section 93, the radius of the outer peripheral sidewall portion 162 centered on the central axis 130 increases as the airflow in the airflow path 90 moves from the upstream side to the downstream side. The outer peripheral sidewall portions 162 in the second and third sections 92 may also have a trajectory extending along a logarithmic spiral when viewed axially along the central axis 130. The bottom of the airflow path 90 is preferably connected to the inner peripheral sidewall portion 161 and the outer peripheral sidewall portion 162 constituting the side portion of the airflow path 90 via a curved surface.

[0117] The angular range centered on the central axis 130 of the second section 92 is larger than that centered on the central axis 130 of the first section 91. The angular range centered on the central axis 130 of the third section 93 is larger than that centered on the central axis 130 of the second section 92.

[0118] Based on this structure, in the first section 91, the flow area of ​​the enlarged flow path section 150 gradually increases with the increase of the flow path depth, thus enabling smooth airflow. Furthermore, in the first section 91, the flow path width is constant, therefore, it is possible to... Figure 8 The width W of the air guide member 81 shown is kept relatively small. As a result, the air guide member 81 can be constructed compactly.

[0119] Furthermore, in the second section 92, the flow area of ​​the expanded flow section 150 increases rapidly with the increase of the flow path depth and the flow path width, thus enabling a smoother airflow.

[0120] Furthermore, in the third section 93, the flow area of ​​the enlarged flow path section 150 gradually increases with the increase of the flow path width, thus enabling smooth airflow. Additionally, in the third section 93, the flow path depth is constant, thus allowing for… Figure 4 The thickness T of the air guide member 81 shown is kept relatively small. As a result, the air guide member 81 can be configured to be even more compact.

[0121] To summarize the structure of the machine tool operation panel 10 in Embodiment 1 of the present invention, as described above, the machine tool operation panel 10 in this embodiment includes: a first housing 31U serving as a casing, which houses a radiator 47, the object to be cooled; an air supply device 61 disposed within the first housing 31U; and an air guide member 81 that forms an airflow path 90 within the first housing 31U, guiding air supplied from the air supply device 61 towards the radiator 47 via the airflow path 90. The airflow path 90 has an enlarged flow path portion 150 whose flow path area increases as the airflow moves from the upstream side to the downstream side.

[0122] According to the machine tool operation panel 10 of Embodiment 1 of the present invention, which is configured in this way, an enlarged flow path section 150 is provided in the air flow path 90, the flow path area of ​​which increases from the upstream side of the air flow to the downstream side, so that air can flow smoothly in the air flow path 90. As a result, the heat sink 47 housed in the first housing 31U can be cooled efficiently.

[0123] Furthermore, in this embodiment, the air supply device of the present invention is described as an axial flow type, but it is not limited thereto. The air supply device of the present invention can be, for example, a Sirocco fan or a transverse flow fan.

[0124] (Implementation Method 2)

[0125] Figure 14 This is a top view showing the internal structure of the air guide component of the control panel in Embodiment 2 of the present invention. Figure 14 Compared with Implementation Method 1 Figure 8 Correspondingly. Figure 15 It means along Figure 14 A cross-sectional view of the air guide component viewed in the direction of sight along the XV-XV line. Figure 16 It means along Figure 14 A cross-sectional view of the air guide component viewed in the direction of sight along the XVI-XVI line. Figure 17 It means along Figure 14 A cross-sectional view of the air guide component viewed in the direction of sight along line XVII-XVII. Figure 18 It means along Figure 14 A cross-sectional view of the air guide component viewed in the direction of sight along the XVIII-XVIII line. Figure 19 It means along Figure 14 A cross-sectional view of the air guide component viewed in the direction of sight along the XIX-XIX line.

[0126] The operation panel in this embodiment has essentially the same structure as the operation panel 10 in Embodiment 1. Hereinafter, repeated descriptions of the same structure will not be provided.

[0127] Reference Figures 14-19 In this embodiment, the air flow path 90 has a fixed flow path section 155 and an enlarged flow path section 150.

[0128] like Figures 14-16As shown, the fixed flow path section 155 is positioned corresponding to the first interval section 91 of the swirl section 90A in Embodiment 1. The fixed flow path section 155 has a fixed flow path area (S6 = S7) regardless of the position of the airflow direction in the airflow path 90. In the fixed flow path section 155, the flow path depth along the axial direction of the central axis 130 is fixed (H6 = H7), and the flow path width along the radial direction of the central axis 130 is fixed (B6 = B7).

[0129] like Figure 14 As shown, the enlarged flow path section 150 is provided at positions corresponding to the second section 92 and the third section 93 of the swivel section 90A in Embodiment 1, and the extension section 90B in Embodiment 1. The enlarged flow path section 150 (swivel section 90A) has a fourth section 96 at a position corresponding to the second section 92 of the swivel section 90A in Embodiment 1. The enlarged flow path section 150 (swivel section 90A) has a fifth section 97 at a position corresponding to the third section 93 of the swivel section 90A in Embodiment 1.

[0130] like Figure 14 , Figure 16 as well as Figure 17 As shown, the flow area of ​​the enlarged flow path section 150 in the fourth section 96 increases from the upstream side of the airflow toward the downstream side (S7 < S8). In the fourth section 96, the flow path depth along the axial direction of the central axis 130 is constant, while the flow path width in the radial direction of the central axis 130 increases from the upstream side of the airflow in the airflow path 90 toward the downstream side (H7 = H8, B7 < B8).

[0131] like Figure 14 , Figures 17-19 As shown, the flow area of ​​the enlarged flow path section 150 in the fifth section 97 increases from the upstream side of the airflow toward the downstream side (S8 < S9 < S10). In the fifth section 97, the flow path depth along the axial direction of the central axis 130 is constant, while the flow path width in the radial direction of the central axis 130 increases from the upstream side of the airflow in the airflow path 90 toward the downstream side (H8 = H9 = H10, B8 < B9 < B10).

[0132] In this embodiment, the airflow path 90 is composed of a fixed flow path section 155 and an enlarged flow path section 150, and therefore does not have a range in which the flow path area decreases as it moves from the upstream side of the airflow toward the downstream side.

[0133] The machine tool control panel of Embodiment 2 of the present invention, configured in this way, can achieve the same effects as described in Embodiment 1.

[0134] It should be considered that the embodiments disclosed herein are illustrative in all respects and not restrictive. The scope of the invention is defined not by the foregoing description but by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0135] Industrial availability

[0136] This invention applies to the control panel used in machine tools.

[0137] Explanation of reference numerals in the attached figures

[0138] 10. Control panel; 21. Cover; 23. Front cover; 25. Door; 26. Opening; 31. Housing; 31L, Second housing; 31U, First housing; 32. Operation unit; 36. Display unit; 41. Display device; 42. Substrate; 43. Electronic components; 44. Heat sink; 45. Fins; 47. Heat sink; 52. Opposing wall; 53. Air inlet; 54. Air passage; 55. Partition wall; 57. End; 61. Air supply device; 62. Motor; 63. Central shaft; 64. First disc; 65. Cylindrical section; 66. Blade section; 67. Second disc; 68, 68j. Ribs; 70. Fan protection component; 71. Wiring; 81. Air guide component; 84. Upstream side opening; 85. Downstream side opening; 86. First plane section; 87. Inclined section; 88. Second plane section; 90. Air flow path; 90A. Swirling section; 90B. Extension section; 91. First interval section; 92. Second interval section; 93. Third interval section; 96. Fourth interval section; 97. Fifth interval section; 100. Machine tool; 120. Rotation center axis; 130. Center axis; 150. Enlarged flow path section; 155. Fixed flow path section; 160. Top; 161. Inner peripheral side wall section; 162. Outer peripheral side wall section; 163. First side wall section; 164. Second side wall section; 165. Wall section; 210, 220. Space.

Claims

1. A control panel for a machine tool, comprising: The casing, which houses the object to be cooled; An air supply device, disposed within the housing; and An air guide component forms an airflow path within the housing, guiding air supplied from the air delivery device toward the object being cooled via the airflow path. The airflow path has an enlarged flow path section in which the flow path area increases from the upstream side of the airflow towards the downstream side. The air supply device has multiple blades arranged at intervals around a predetermined axis in the circumferential direction, and rotates about the predetermined axis. The enlarged flow path extends circumferentially along the predetermined axis. The air supply device is an axial flow type that delivers air along the predetermined axis. The enlarged flow path section extends circumferentially along the predetermined axis at a position opposite to the plurality of blade sections along the predetermined axis. The air supply device also has: A central shaft portion, having a cylindrical shape centered on the predetermined axis, is disposed radially inside the predetermined axis relative to the plurality of blade portions; and The motor is housed in the central shaft portion. The air guide component has a wall portion. The enlarged flow path extends around the central axis from the space on one side of the wall portion when viewed axially along the predetermined axis, and extends away from the central axis portion via the space on the other side of the wall portion.

2. The control panel for a machine tool according to claim 1, wherein, The air supply device also has: A fan protector surrounds the outer periphery of the plurality of blades; and A rib extending between the central shaft and the fan guard, with wiring from the motor routed along the rib. The wall portion is positioned to overlap with the rib portion when viewed axially along the predetermined axis.

3. The control panel for a machine tool according to claim 1 or 2, wherein, The expanded flow path section has a first interval section in which air supplied from the air supply device flows into the first interval section. In the first interval section, the flow path depth along the predetermined axis increases from the upstream side of the air flow to the downstream side, and the flow path width in the radial direction of the predetermined axis is constant.

4. The control panel for a machine tool according to claim 3, wherein, The expanded flow path section also has a second section into which air supplied from the air supply device flows. The second section is located downstream of the air flow compared to the first section. In the second section, the flow path depth along the axial direction of the predetermined axis and the flow path width along the radial direction of the predetermined axis increase as the air flow moves from the upstream side to the downstream side.

5. The control panel for a machine tool according to claim 4, wherein, The expanded flow path section also has a third section, into which air supplied from the air supply device flows. The third section is located downstream of the air flow compared to the second section. In the third section, the axial flow path depth along the predetermined axis is constant, and the radial flow path width along the predetermined axis increases as the air flow moves from the upstream side to the downstream side.

6. The control panel for a machine tool according to claim 1 or 2, wherein, The control panel for the machine tool also includes electronic components. The object to be cooled is a heat sink that is arranged in a manner that overlaps with the electronic component along the axial direction of the predetermined axis and is connected to the electronic component. The air guiding component has: The first planar portion, which is connected to the air supply device, extends in a planar direction orthogonal to the predetermined axis; The second planar portion has an opening that opens outward in the radial direction of the predetermined axis, is disposed at a position separate from the first planar portion in the radial direction of the predetermined axis, and is offset from the first planar portion in the axial direction of the predetermined axis, and extends in a planar direction orthogonal to the predetermined axis. as well as An inclined portion extends between the first planar portion and the second planar portion along an inclined direction inclined relative to the predetermined axis. The air supply device, the second planar portion, and the radiator are arranged in the listed order from the inner side of the predetermined axis in the radial direction to the outer side in the radial direction. The first planar portion and the electronic components are arranged in the listed order from the inner side of the radial direction of the predetermined axis to the outer side of the radial direction.

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