Tool magazine and machine tool

Abstract

The tool magazine includes: a conveying section (36) having multiple tool holders (32) for holding tools in a detachable manner, the conveying section (36) for conveying the multiple tool holders (32); and a tool magazine cover for housing the conveying section (36). With respect to the conveying section (36), tools can be manually attached and detached from the tool holders (32) conveyed to a predetermined position (J). The tool magazine also includes a display section (51) disposed inside the tool magazine cover for displaying a first pattern (72). The first pattern (72) represents an arc or circumference with a diameter corresponding to the maximum diameter of the tool that can be held in the tool holder (32).

Description

Technical Field

[0001] This invention relates to a tool magazine and a machine tool. Background Technology

[0002] For example, Japanese Patent Application Publication No. 2019-42878 (Patent Document 1) discloses a tool magazine comprising: a first conveying section and a second conveying section that detachably holds and conveys multiple tools such as drills, end mills, or milling cutters along a circular path; and a housing for housing the first and second conveying sections. The housing is provided with a first opening and a second opening for manually attaching and detaching tools relative to the first and second conveying sections, respectively.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2019-42878 Summary of the Invention

[0006] The problem the invention aims to solve

[0007] As disclosed in Patent Document 1 above, in a tool magazine mounted on a machine tool, the following situation exists: when changing the type of tool used for machining a workpiece, or when the tool reaches the end of its life, the tool stored in the tool magazine is replaced manually. In this case, it is desirable to perform manual tool removal and installation operations easily and appropriately.

[0008] Therefore, the object of the present invention is to solve the above-mentioned problems and provide a tool magazine and a machine tool equipped with such a tool magazine that allow for easy and appropriate manual tool assembly and disassembly.

[0009] Solution for solving the problem

[0010] The tool magazine according to the present invention includes: a conveying unit having a plurality of tool holding parts for holding tools in a detachable manner, the conveying unit for conveying the plurality of tool holding parts, and a housing for housing the conveying unit. The tool magazine also includes a display unit disposed within the housing for displaying a first pattern. The first pattern represents an arc or circumference with a diameter corresponding to the maximum diameter of the tool that can be held in the tool holding part.

[0011] With this tool magazine configuration, when manually installing tools into the tool holder, the operator can visually identify the maximum diameter of the tool that can be held in the tool holder by checking the arc or circumference represented by the first pattern displayed on the display. This allows for easy and appropriate manual tool installation and removal.

[0012] Furthermore, preferably, the tool is inserted or removed along a predetermined central axis relative to the tool holder that has been conveyed to a predetermined position. The display unit has a display surface composed of a plane orthogonal to the axial direction of the predetermined central axis, for displaying the first pattern.

[0013] With a tool magazine constructed in this way, when the operator is assembling or disassembling the tool from a position opposite the tool holder along the predetermined central axis, it is easier to confirm the arc or circumference represented by the first pattern displayed on the display surface.

[0014] Furthermore, it is preferable that the display unit is located to the side of a predetermined position. The height of the center point of the arc or circumference is consistent with the height of the predetermined central axis.

[0015] With this tool magazine configuration, when the operator manually installs a tool into the tool holder, it is easy to compare the size of the tool with the size of the arc or circumference represented by the first pattern displayed on the display.

[0016] In addition, preferably, the display also shows the maximum diameter of the tool that can be held in the tool holder.

[0017] With this tool magazine configuration, operators can accurately identify the maximum diameter of the tool that can be held in the tool holder.

[0018] Furthermore, preferably, the housing is provided with an opening for manually attaching and detaching the tool from the tool holder after it has been transported to a predetermined position. At least a portion of the display unit faces the opening surface formed by the opening in the housing.

[0019] With this tool magazine configuration, the operator can easily identify the arc or circumference represented by the first pattern displayed on the display unit through the opening formed by the opening in the cover.

[0020] Furthermore, preferably, the display unit also displays first information related to the tool held in the tool holder and / or the transport unit using a variable display configuration.

[0021] With this tool magazine configuration, when the operator manually installs or removes the tool held in the tool holder, they can check the display mode on the display unit to identify first information related to the tool held in the tool holder and / or the transport unit. This makes manual tool installation and removal operations easier and more appropriate.

[0022] In addition, preferably, the first information includes at least one of the following: the presence or absence of a tool in the tool holder at the predetermined position, the clamping state of the tool in the tool holder at the predetermined position, and the operating status of the tool holder in the conveying unit.

[0023] Based on the tool magazine structured in this way, the operator can confirm the display pattern in the display unit and thus identify this primary information.

[0024] Alternatively, the display unit preferably includes: a panel including a light-transmitting portion; and a light-emitting device that emits light from the back side of the panel toward the light-transmitting portion in multiple light-emitting modes.

[0025] With this tool magazine, a variable display form in the display section can be achieved by utilizing the light-emitting mode of the light-emitting device confirmed in the light-transmitting section.

[0026] Furthermore, preferably, the multiple light emission modes include a light emission mode with a specified light emission state selected from on, off, and flashing. Also preferably, the multiple light emission modes include a light emission mode with a specified light emission color selected from multiple colors.

[0027] Based on the tool magazine constructed in this way, it is possible to realize a variable display form in the display section by utilizing these light-emitting states and / or light-emitting colors confirmed in the light-transmitting section.

[0028] Additionally, preferably, the plate also displays a second piece of information, which includes at least one of an identifier indicating a predetermined position, a tool holder standard for the tool held in the tool holder, and the orientation of the tool held in the tool holder in the direction about its axis of rotation.

[0029] With this tool magazine configuration, operators can identify the second piece of information by manually removing and installing the tools held in the tool holder, thus making manual tool removal and installation easier and more appropriate.

[0030] Furthermore, preferably, at least one of the marking indicating the predetermined position, the tool holder standard of the tool held in the tool holder, and the orientation of the tool held in the tool holder about its axis of rotation is represented by the second pattern. The light-transmitting portion corresponds to the second pattern.

[0031] With the tool magazine thus configured, light is shone from the light-emitting device toward the light-transmitting part, making it easy for the operator to identify the second information represented by the second pattern.

[0032] The machine tool involved in this invention has a tool magazine as described in any of the above-mentioned claims.

[0033] With this configuration, a machine tool is made that allows for easy and appropriate manual tool loading and unloading within the tool magazine.

[0034] The effects of the invention

[0035] As explained above, according to the present invention, it is possible to provide a tool magazine and a machine tool equipped with such a tool magazine that allow for easy and appropriate manual tool removal and installation. Attached Figure Description

[0036] Figure 1 This is a perspective view of a machine tool equipped with the tool magazine of Embodiment 1 of the present invention.

[0037] Figure 2 It means by Figure 1 The front view of the tool magazine within the area enclosed by the double-dotted line II.

[0038] Figure 3 It means along Figure 2 A cross-sectional view of the tool magazine taken along line III-III in the view direction.

[0039] Figure 4 It means Figure 2 The main view of the display section.

[0040] Figure 5 This is a front view showing the first light-emitting mode of the light-emitting device.

[0041] Figure 6 This is a front view showing the second light-emitting mode of the light-emitting device.

[0042] Figure 7 This is a front view showing the third light-emitting mode of the light-emitting device.

[0043] Figure 8 This is the front view showing the fourth light-emitting mode of the light-emitting device.

[0044] Figure 9 This is a front view showing the display unit included in the tool magazine according to Embodiment 2 of the present invention.

[0045] Figure 10 This is a front view showing the display unit included in the tool magazine according to Embodiment 3 of the present invention.

[0046] Figure 11 This is a perspective view of the tool magazine according to Embodiment 4 of the present invention. 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 equipped with the tool magazine according to Embodiment 1 of the present invention. (Refer to...) Figure 1Machine tool 100 is an NC (Numerically Controlled) machine tool that automates various actions for workpiece machining through computer numerical control. Machine tool 100 is a combination machine tool with turning function using fixed tools and milling function using rotary tools.

[0050] Furthermore, in this specification, the axis parallel to the left-right direction (width direction) of the machine tool 100 and extending horizontally is called the "Z-axis," the axis parallel to the front-back direction (depth direction) of the machine tool 100 and extending horizontally is called the "Y-axis," and the axis extending vertically is called the "X-axis." Figure 1 The right direction in the equation is called the "+Z-axis direction", and the left direction is called the "-Z-axis direction". Figure 1 The direction closest to the paper in the image is called the "+Y-axis direction," and the direction furthest into the image is called the "-Y-axis direction." Figure 1 The upward direction is called the "+X-axis direction", and the downward direction is called the "-X-axis direction". The X-axis, Y-axis, and Z-axis are three mutually orthogonal axes.

[0051] First, let me briefly describe the overall structure of the machine tool 100. The machine tool 100 has: a workpiece spindle and a relative workpiece spindle for rotating the workpiece; a tool spindle for rotating the tool; a tool holder for mounting multiple tools; a tool magazine 10 for accommodating multiple tools; and an automatic tool changer (ATC) for changing tools between the tool magazine 10 and the tool spindle.

[0052] The machine tool 100 also has a cover 21. The cover 21 is used to divide and form the machining area 110 and constitutes the appearance of the machine tool 100. The machining area 110 is the space for machining the workpiece and is substantially enclosed to prevent foreign matter such as chips or cutting oil generated during workpiece machining from leaking to the outside of the machining area 110.

[0053] The cover 21 has a first door 22 and a second door 23, a side cover 26, and a knife magazine cover 41.

[0054] The cover 21 has openings that allow the machining area 110 to open towards the +Y axis (front of the machine tool) and the +X axis (upward). Door 22 and door 23 are positioned within the openings in the cover 21. Side covers 26 and tool magazine covers 41 are respectively positioned on either side of the openings in the cover 21 in the Z-axis direction.

[0055] Door 22 and door 23 can slide along the Z-axis between a closed position that blocks the opening of the cover 21 and an open position that opens the opening of the cover 21. When slid to the closed position, door 22 and door 23 divide the area into processing zone 110. Transparent windows 24 and 25 are provided on door 22 and door 23, respectively. When slid to the open position, door 22 and door 23 are arranged overlapping the side cover 26 in the Y-axis direction.

[0056] Next, the construction of the tool magazine 10 will be explained in detail. Figure 2 It means by Figure 1 The front view of the tool magazine, enclosed by the double-dotted line II. Figure 2 The interior of the tool magazine cover 41 is shown in the image.

[0057] Reference Figure 1 and Figure 2 The tool magazine 10 is located outside the machining area 110. The tool magazine 10 is positioned on the side opposite to the side cover 26, separated by the first door 22 and the second door 23 in the Z-axis direction. The tool magazine 10 is used to house multiple tools such as drills, end mills, or milling cutters mounted on the tool spindle. In this embodiment, the tool holder standard for the tools housed in the tool magazine 10 is HSK.

[0058] The tool magazine 10 has a tool magazine base 31, a conveying section 36, and the aforementioned tool magazine cover 41 (cover).

[0059] The tool magazine base 31 serves as the base component of the tool magazine 10. The conveying unit 36 ​​is supported by the tool magazine base 31. The tool magazine cover 41 is mounted on the tool magazine base 31. The tool magazine cover 41 and the tool magazine base 31 together form a space for accommodating the conveying unit 36. When viewed from the front, the tool magazine cover 41 constitutes the appearance of the tool magazine 10.

[0060] The transport unit 36 ​​has a plurality of tool holders 32 (tool holding parts). The tool holders 32 are configured to hold the tools in a detachable manner. The transport unit 36 ​​is configured to transport the plurality of tool holders 32 along a circular path 121.

[0061] The conveyor unit 36 ​​also includes a conveyor chain 33, a drive sprocket 37, a driven sprocket 38, and a motor (not shown).

[0062] The drive sprocket 37 and the driven sprocket 38 are configured separately from each other. The drive sprocket 37 and the driven sprocket 38 are configured separately from each other in the X-axis direction (vertical direction). The output shaft of the motor is connected to the drive sprocket 37 via a reducer. The conveyor chain 33 is arranged in a loop along path 121. The conveyor chain 33 is positioned between the drive sprocket 37 and the driven sprocket 38.

[0063] like Figure 2As shown, multiple tool holders 32 are interconnected by a conveyor chain 33. The multiple tool holders 32 are arranged at equal intervals along path 121. The multiple tool holders 32 are positioned on the outer periphery of the conveyor chain 33, which is arranged in a loop. The conveyor chain 33 has number plates, which are consecutive numbers in the circumferential direction, indicating the number of each tool holder 32.

[0064] The tool holder 32 has a cylindrical shape that can accommodate the tool and is centered on a central axis 122 parallel to the Y-axis direction. The path 121 extends between the multiple tool holders 32 in a manner that passes through the central axis 122 of each tool holder 32. A clamping mechanism that uses elastic force to clamp the tool is built into the tool holder 32.

[0065] The rotation from the motor is transmitted to the drive sprocket 37, causing the drive sprocket 37 to rotate. As the drive sprocket 37 rotates, the conveyor chain 33 moves in the circumferential direction, thereby conveying a plurality of tool holders 32 along path 121.

[0066] The tool magazine 10 has multiple transport units 36 (36A, 36B, 36C). Transport unit 36A is configured to transport multiple tool holders 32 along a circular path 121A. Transport unit 36B is configured to transport multiple tool holders 32 along a circular path 121B. Transport unit 36C is configured to transport multiple tool holders 32 along a circular path 121C.

[0067] Conveying units 36A, 36B, and 36C are arranged independently. They are arranged horizontally (Z-axis direction). Conveying units 36A, 36B, and 36C are configured along paths 121A, 121B, and 121C on the same plane (X-axis-Z-axis plane).

[0068] Path 121 has a longitudinal shape with the X-axis (vertical direction) as the longer side and the Z-axis (horizontal direction) as the shorter side. Path 121 has a runway shape. Paths 121A, 121B, and 121C have the same shape. Paths 121A, 121B, and 121C can also have different shapes.

[0069] As an example, the tool sets used in machining operations that house different workpieces are housed in transport sections 36A, 36B, and 36C. The top of path 121 corresponds to the tool release position, where the tool supplied from transport section 36 to machining area 110 is positioned.

[0070] The tool supplied from the conveyor 36 to the machining area 110 is moved from its current position to the tool removal position via the tool holder 32. In this case, the conveying direction of the tool holder 32 is selected to be either clockwise or counterclockwise along path 121 to minimize the travel distance from the current position to the tool removal position. The tool positioned at the tool removal position is then conveyed toward the machining area 110 by an automatic tool changer (not shown).

[0071] Furthermore, the tool magazine 10 can have multiple transport units 36 (more than three) or a single transport unit 36. Additionally, in machine tools where the tool post has ATC functionality, the tool magazine can also be used to accommodate multiple tools mounted on the tool post.

[0072] The conveying unit 36 ​​is configured such that the tool holder 32, which has been conveyed to the predetermined position J, can be manually attached and detached. Figure 2 In the conveying unit 36 ​​shown, the 23rd tool holder 32 is positioned at a predetermined position J. The tool is inserted or removed relative to the tool holder 32, which is conveyed to the predetermined position J, along the central axis 122 (the predetermined central axis). When the tool is held by the tool holder 32, the central axis of the tool shank is aligned with the central axis 122 of the tool holder 32.

[0073] The tool magazine cover 41 is provided with an opening 42 for manually attaching and detaching the tool holder 32, which has been transported to the predetermined position J. The opening 42 communicates with the space housing the transport section 36 and the space outside it. The opening 42 opens in the +Y axis direction (front of the machine tool). The opening 42 opens relative to the tool holder 32 transported to the predetermined position J.

[0074] The predetermined position J corresponds to the straight section of the path 121, which has a runway shape. The predetermined position J is located below the tool release position. Furthermore, the predetermined position J is not particularly limited as long as it is at a height that the operator can reach without strain.

[0075] The tool magazine cover 41 has a tool magazine door 43. The tool magazine door 43 is disposed in the opening 42. The tool magazine door 43 is configured to open and close between a closed position that blocks the opening 42 and an open position that opens the opening 42. The opening and closing action of the tool magazine door 43 is not particularly limited; for example, it can be a sliding action in the vertical direction or a rotational action centered on a rotation axis extending in the vertical direction. The tool magazine door 43 may also be made of a transparent component.

[0076] The tool magazine 10 also has a first operating unit 46 and a second operating unit 47. The first operating unit 46 is operated when the operator instructs the conveyor unit 36 ​​to operate. The first operating unit 46 is provided on the tool magazine cover 41. The first operating unit 46 is provided adjacent to the opening 42. The first operating unit 46 is arranged in the Z-axis direction with the opening 42.

[0077] The first operation unit 46 may also include an operation section for switching the transport of the tool holder 32 in the transport unit 36 ​​from automatic mode (the mode according to the program executed by the machine tool 100) to manual mode. The first operation unit 46 may also include an operation section for specifying the number of the tool holder 32 to be transported to a predetermined position J in manual mode. The first operation unit 46 may also include an operation section for starting the transport of the tool holder 32 in manual mode. The first operation unit 46 may be, for example, composed of a touch panel or buttons.

[0078] The second operating unit 47 is operated when the operator releases the clamping mechanism at the tool holder 32, which has been transported to the predetermined position J. The second operating unit 47 is composed of a foot switch.

[0079] Furthermore, the first operating unit 46 may also include an operating part for releasing the clamping mechanism. Alternatively, the operating part may not be provided when the clamping mechanism is released, and instead, it may be a structure in which an operator uses a jig or the like to remove the tool from the tool holder 32.

[0080] The tool magazine cover 41 has multiple openings 42 (42A, 42B, 42C). Openings 42A, 42B, and 42C are provided for manually installing and removing tools in the conveyor sections 36A, 36B, and 36C, respectively. The tool magazine cover 41 also has multiple tool magazine doors 43 (43A, 43B, 43C). Tool magazine doors 43A, 43B, and 43C are respectively located in openings 42A, 42B, and 42C.

[0081] The tool magazine 10 has multiple first operating units 46 (46A, 46B, 46C) and multiple second operating units 47 (47A, 47B, 47C). The first operating units 46A, 46B, and 46C are operated when the operator instructs the conveyor units 36A, 36B, and 36C to perform actions. The second operating units 47A, 47B, and 47C are operated when the operator releases the clamping mechanism from the conveyor units 36A, 36B, and 36C.

[0082] Figure 3 It means along Figure 2A cross-sectional view of the tool magazine taken along line III-III in the view direction. Figure 4 It means Figure 2 The main view of the display section. (Refer to...) Figures 2-4 The tool magazine 10 also has a display unit 51.

[0083] The display unit 51 has a display surface 54. The display surface 54 has a planar shape. The text 71 and the first pattern 72, which will be described later, are displayed on the display surface 54.

[0084] The display unit 51 is disposed inside the tool magazine cover 41. The display unit 51 is located to the side of a predetermined position J. The display unit 51 is disposed adjacent to the predetermined position J. The display unit 51 is disposed adjacent to the predetermined position J in the Z-axis direction. The display unit 51 is disposed on the inner circumference of a plurality of tool holders 32 arranged in a ring. A number plate indicating the number of the tool holder 32 located at the predetermined position J is disposed between the display unit 51 and the tool holder 32 located at the predetermined position J. When viewing the tool magazine 10 from the front, the tool holder 32 located at the predetermined position J is located between the display unit 51 and the tool holder 32 located at the predetermined position J. Figure 1 Between the first operation section 46.

[0085] The display surface 54 is formed by a plane orthogonal to the central axis 122 of the blade holder 32 positioned at the predetermined position J. The display surface 54 may also be formed by a plane inclined relative to the central axis 122 of the blade holder 32 positioned at the predetermined position J.

[0086] The tool magazine 10 also has a decorative plate 34. The decorative plate 34 has a plate shape parallel to the X-axis-Z-axis plane. The decorative plate 34 is disposed on the inner periphery of a plurality of tool sleeves 32 arranged in a ring. A display unit 51 is mounted on the decorative plate 34.

[0087] At least a portion of the display portion 51 faces the opening surface formed by the opening portion 42 in the tool magazine cover 41. In this embodiment, a portion of the display portion 51 (display surface 54) faces the opening surface formed by the opening portion 42 in the tool magazine cover 41. The area of ​​the portion of the display surface 54 facing the opening surface formed by the opening portion 42 is larger than the area of ​​the remaining portion of the display surface 54 that does not face the opening surface formed by the opening portion 42 (facing the tool magazine cover 41).

[0088] Alternatively, the display unit 51 may be positioned on the outer periphery of a plurality of blade sleeves 32 arranged in a ring. It may also be a structure where the entire display surface 54 faces the opening surface formed by the opening portion 42. Alternatively, the area of ​​the portion of the display surface 54 facing the opening surface formed by the opening portion 42 may be less than the area of ​​the remaining portion of the display surface 54 not facing the opening surface formed by the opening portion 42. The display unit 51 may also be configured such that the display surface 54 and the opening surface formed by the opening portion 42 in the blade magazine cover 41 are orthogonal.

[0089] The display section 51 (display surface 54) displays text 71 (71N, 71W) and a first pattern 72 (72N, 72W).

[0090] The letter 71 indicates the maximum diameter of the tool that can be held in the tool holder 32. Specifically, letter 71N indicates the maximum diameter of the tool that can be held in the tool holder 32 positioned at the predetermined position J when no tool is installed in the tool holder 32 adjacent to the tool holder 32 positioned at the predetermined position J. The letter 71W indicates the maximum diameter of the tool that can be held in the tool holder 32 positioned at the predetermined position J when a tool is installed in the tool holder 32 adjacent to the tool holder 32 positioned at the predetermined position J.

[0091] For example, in Figure 2 In the example shown, when no tool is installed in tool holders 22 and 24, tool holder 32 can hold a tool with a diameter of 130 mm. On the other hand, when a tool is installed in at least one of tool holders 22 and 24, tool holder 32 can hold a tool with a diameter of 70 mm.

[0092] The first pattern 72 represents an arc or circumference with a diameter corresponding to the maximum diameter of the tool that can be held in the tool holder 32. The diameter of the arc or circumference represented by the first pattern 72 is the same as the maximum diameter of the tool that can be held in the tool holder 32.

[0093] The first pattern 72N is an arc with a diameter (130 mm) corresponding to the maximum diameter of the tool that can be held in the tool holder 32 positioned at the predetermined position J when no tool is installed in the tool holder 32 adjacent to the tool holder 32 positioned at the predetermined position J. The first pattern 72N is an arc centered at the center point 131. The first pattern 72N is composed of two arcs that are broken in the X-axis direction (vertical direction). The two arcs are broken at the position where the predetermined position J and the display part 51 are opposite to each other.

[0094] The first pattern 72W is a circle with a diameter (70 mm) corresponding to the maximum diameter of the tool that can be held in the tool holder 32 located at the predetermined position J when a tool is installed in the tool holder 32 adjacent to the tool holder 32 located at the predetermined position J. The first pattern 72W is a circle centered on the center point 131.

[0095] like Figure 2As shown, the height of the center point 131 of the arc or circumference represented by the first pattern 72 is consistent with the height of the central axis 122 of the tool holder 32 positioned at the predetermined position J. The heights of the center point 131 and the central axis 122 are based on a common horizontal plane, for example, based on the ground on which the machine tool 100 (tool magazine 10) is set. The center point 131 of the arc or circumference represented by the first pattern 72 is arranged on a straight line formed by extending the central axis 122 of the tool holder 32 positioned at the predetermined position J in the Z-axis direction.

[0096] The text 71N is arranged overlapping with or near the first pattern 72N. The text 71W is arranged overlapping with or near the first pattern 72W.

[0097] Imagine the following structure: when multiple tool holders 32 are conveyed horizontally at a predetermined position J, which serves as a manual tool change position, a display unit 51 is provided above or below the tool holder 32 positioned at the predetermined position J. In this case, the structure could also be as follows: the center point 131 of the arc or circumference represented by the first pattern 72 is arranged on a straight line formed by extending the central axis 122 of the tool holder 32 positioned at the predetermined position J in the X-axis direction (vertical direction).

[0098] Furthermore, the first pattern 72N can also be a circle centered on the center point 131. The first pattern 72W can also be an arc centered on the center point 131. Alternatively, only either the first pattern 72N or the first pattern 72W can be displayed on the display unit 51.

[0099] Based on this structure, when manually installing a tool into the tool holder 32, the operator can visually identify the maximum diameter of the tool that can be held in the tool holder 32 by checking the arc or circumference represented by the first pattern 72 displayed on the display unit 51. Furthermore, the operator can accurately identify the maximum diameter of the tool that can be held in the tool holder 32 by checking the text 71 displayed on the display unit 51. Therefore, the operator can easily and appropriately perform manual tool installation and removal operations.

[0100] Furthermore, the display surface 54 is formed by a plane orthogonal to the central axis 122 of the tool holder 32 positioned at a predetermined position J. With this structure, when an operator is performing tool assembly or disassembly operations along the axial direction of the central axis 122 from a position opposite the tool holder 32, it is easier to identify the text 71 and the first pattern 72 displayed on the display surface 54.

[0101] Furthermore, the height of the center point 131 of the arc or circumference represented by the first pattern 72 is consistent with the height of the central axis 122 of the tool holder 32 positioned at the predetermined position J. With this structure, when the operator manually installs the tool into the tool holder 32, it is easy to compare the size of the tool they are holding with the size of the arc or circumference represented by the first pattern 72 displayed on the display unit 51.

[0102] Furthermore, at least a portion of the display section 51 faces the opening surface formed by the opening 42 in the tool magazine cover 41. With this structure, the operator can more easily identify the text 71 and the first pattern 72 displayed on the display surface 54 through the opening surface formed by the opening 42 in the tool magazine cover 41.

[0103] Furthermore, the maximum diameter of the tool that can be held in the tool holder 32 refers to the maximum permissible diameter of the tool held in the tool holder 32. The maximum diameter of the tool that can be held in the tool holder 32 is the diameter of the tool when centered on the central axis of the tool shank. If a tool with a diameter exceeding the maximum diameter specified in the tool magazine 10 is installed in the tool holder 32, the tools in adjacent tool holders 32 will interfere with each other, or the tools held in the tool holder 32 will interfere with the tool magazine cover 41 during transport.

[0104] The structure of the display unit 51 will be described in further detail. The display unit 51 has a plate 52. The plate 52 is a flat plate orthogonal to the central axis 122 of the blade sleeve 32. The plate 52 is a long plate with the long side direction of the arrangement direction (X-axis direction) of the plurality of blade sleeves 32 at the predetermined position J and the short side direction of the arrangement direction (Z-axis direction) of the plurality of blade sleeves 32 at the predetermined position J and the central axis 122 of the blade sleeves 32. The plate 52 in the display unit 51 has a display surface 54.

[0105] The plate 52 has a light-transmitting portion 56 (56P, 56Q, 56R). The light-transmitting portion 56 is composed of a light-transmitting component (transparent component).

[0106] The display unit 51 also includes a light-emitting device 53. The light-emitting device 53 is, for example, a backlight equipped with a light source such as an LED. The light-emitting device 53 overlaps with the plate 52 in the Y-axis direction. When viewed from the front of the tool magazine 10, the light-emitting device 53 is positioned on the back side of the plate 52. The light-emitting device 53 illuminates light from the back side of the plate 52 toward the light-transmitting portion 56.

[0107] The display unit 51 displays first information relating to the cutting tool held in the tool holder 32 and / or the transport unit 36 ​​using a variable display configuration.

[0108] The first information includes at least one of the following: the presence or absence of a cutting tool in the tool holder 32 at the predetermined position J, the clamping state of the cutting tool in the tool holder at the predetermined position J, and the operating status of the tool holder in the conveying unit 36.

[0109] The light-emitting device 53 emits light toward the light-transmitting portion 56 in multiple light-emitting modes. The multiple light-emitting modes of the light-emitting device 53 may also include a light-emitting mode of a specified light-emitting state selected from on, off, and flashing. The multiple light-emitting modes of the light-emitting device 53 may also include a light-emitting mode of a specified light-emitting color selected from multiple colors.

[0110] The first information displayed on the display unit 51 will be explained in more detail. Figures 5-8 This is the front view showing the light-emitting mode of the light-emitting device.

[0111] Reference Figure 2 When the conveyor unit 36 ​​is in automatic mode, the light-transmitting sections 56P, 56Q, and 56R are turned off. The operator operates the first operating unit 46 to switch the conveyor unit 36 ​​from automatic to manual mode. At this time, with no tool installed on the 23rd tool holder 32 positioned at the predetermined position J, the light-transmitting sections 56P, 56Q, and 56R are illuminated in blue (in...). Figure 2 In the middle, the blue illumination is indicated by a shading line. On the other hand, when a tool is installed in the tool holder 32 positioned at the predetermined position J, the light-transmitting part 56P is illuminated in blue.

[0112] Reference Figure 5 The operator operates the first operating unit 46 to specify the number of the tool holder 32 to be dispatched to the predetermined position J (in this case, number 27), and begins the transport of the tool holder 32. During the transport of the tool holder 32, the light-transmitting part 56P flashes blue (in... Figure 5 In the image, ripples with shaded and solid lines represent the flashing effect in blue.

[0113] Reference Figure 6 When the 27th tool holder 32 reaches the predetermined position J, the conveying of the tool holder 32 stops. At this time, the tool T is installed in the 27th tool holder 32, therefore, the light-transmitting part 56P is illuminated in blue (in Figure 6 In the image, shaded lines are used to represent points illuminated in blue.

[0114] Reference Figure 7 The operator operates the second operating part 47, thereby releasing the clamping mechanism of the 27th tool holder 32 and removing the tool from the tool holder 32. As a result, the light-transmitting parts 56P, 56Q, and 56R are illuminated in blue (in...). Figure 7 In the image, shaded lines are used to represent points illuminated in blue.

[0115] Reference Figure 8 The operator installs the new tool into tool holder 32 (number 27). At this time, if the clamping condition of the tool installed in tool holder 32 is abnormal, the light-transmitting parts 56P, 56Q, and 56R flash red (in...). Figure 8 In the image, the wavy lines, represented by shaded and solid lines, indicate flashing in red.

[0116] If we summarize the multiple light-emitting modes of the light-emitting device 53 described above, then the light-emitting modes in which the light-transmitting parts 56P, 56Q, and 56R are turned off indicate that the conveying unit 36 ​​is in automatic mode.

[0117] The light-transmitting part 56P illuminates in a flashing blue light pattern to indicate that the tool holder 32 is being conveyed in the manual mode of the conveying unit 36. The light-transmitting parts 56P, 56Q, and 56R illuminate in a bright blue light pattern to indicate that no tool is installed on the tool holder 32 positioned at the predetermined position J in the manual mode of the conveying unit 36. The light-transmitting part 56P illuminates in a bright blue light pattern to indicate that a tool is installed on the tool holder 32 positioned at the predetermined position J in the manual mode of the conveying unit 36.

[0118] The light-transmitting parts 56P, 56Q, and 56R use a red flashing light pattern to indicate that the clamping state of the tool in the tool holder 32, which is positioned at the predetermined position J, is abnormal.

[0119] Based on this structure, when operators manually assemble and disassemble the tools held in the tool holder 32, they can check the light-emitting mode of the light-transmitting part 56, thereby identifying the operation mode of the conveying part 36, the conveying status of the tool holder 32 in the conveying part 36, the presence or absence of the tool in the tool holder 32 positioned at the predetermined position J, and the clamping status of the tool in the tool holder 32 positioned at the predetermined position J. This allows operators to perform manual tool assembly and disassembly operations more easily and appropriately.

[0120] Alternatively, the structure can be configured such that multiple pieces of first information are represented by varying the intervals of the flashing time of the light-transmitting portion 56. Furthermore, the variable display form of the display portion 51 is not limited to the multiple light-emitting modes of the light-emitting device 53; for example, it can be implemented using a display panel such as a liquid crystal panel.

[0121] Reference Figure 2 and Figure 4 The plate 52 also displays a second piece of information, which includes an identifier indicating a predetermined position J, a tool holder standard for the tool held in the tool holder 32, and at least one of the orientation of the tool held in the tool holder 32 in the direction about its axis of rotation.

[0122] The marking indicating the predetermined position J, the tool holder standard of the tool held in the tool holder 32, and the orientation of the tool held in the tool holder 32 in the direction about its axis of rotation are represented by the second pattern 61 (61p, 61q, 61r). The light-transmitting portions 56 (56P, 56Q, 56R) correspond to the second pattern 61 (61p, 61q, 61r), respectively.

[0123] The second information displayed on the display unit 51 will be described in more detail. A second pattern 61 (61p, 61q, 61r) is also displayed on the plate 52.

[0124] The second pattern 61p consists of a mark indicating a predetermined position J. The second pattern 61p is positioned between the central axis 122 and the center point 131 of the tool holder 32 located at the predetermined position J. The second pattern 61p is also positioned between the central axis 122 of the tool holder 32 located at the predetermined position J and the second pattern 61q. The second pattern 61p is formed by arranging multiple patterns in the Z-axis direction that have a predetermined width in the radial direction of the center point 131 and extend in a band-like shape around the center point 131.

[0125] The second pattern 61q represents the standard shank of the knife held in the sheath 32. The second pattern 61q consists of a graphic schematically representing the shape of the HSK shank.

[0126] The second pattern 61q has a ring shape centered at point 131. A pair of recesses 65 are provided at phase positions opposite each other, separated by the center point 131. These recesses 65 are recessed inward in a radial direction from the outer peripheral surface of the ring shape toward the center point 131, representing drive keyways. A V-groove 64, recessed in a V-shape from the outer peripheral surface of the ring shape toward the center point 131 at a designated phase position centered at the center point 131, is provided.

[0127] Patterns 61q and 61r indicate the orientation of the tool held in the tool holder 32, positioned at a predetermined position J, about its axis of rotation. Pattern 61r is arranged circumferentially at the same phase position as the V-groove 64 at the center point 131. Pattern 61r is arranged radially outward from the center point 131 than the V-groove 64. Pattern 61r consists of a graphic of an arrow indicating the V-groove 64.

[0128] The light-transmitting portion 56P corresponds to the second pattern 61p, which is composed of a mark indicating a predetermined position J. The light-transmitting portion 56Q corresponds to the second pattern 61q, which is composed of a graphic schematically representing the shape of the handle of the HSK. The light-transmitting portion 56R corresponds to the second pattern 61r, which is composed of a graphic of an arrow indicating a V-groove 64.

[0129] With this structure, when manually assembling or disassembling the tool held in the tool holder 32, the operator can identify the plate 52, thus recognizing the manual tool change position, the tool holder standard, and the tool orientation. This allows the operator to perform manual tool assembly and disassembly operations more easily and appropriately.

[0130] In addition, Figures 2-8 The figure shows a display unit 51 corresponding to the conveying unit 36C, but the same display unit 51 is also provided in the conveying units 36A and 36B. However, when the predetermined position J is located on the right side of the display unit 51 in the figure, the design of the display unit 51 is flipped left and right.

[0131] To summarize the structure of the tool magazine 10 and machine tool 100 of Embodiment 1 of the present invention as described above, the tool magazine 10 of this embodiment includes: a conveying section 36 having a plurality of tool holders 32 serving as tool holding sections for holding tools in a detachable manner, the conveying section 36 being used to convey the plurality of tool holders 32; and a tool magazine cover 41 serving as a housing for receiving the conveying section 36. With respect to the conveying section 36, the tool holders 32 conveyed to a predetermined position J can be manually attached or detached. The tool magazine 10 also includes a display section 51 disposed within the tool magazine cover 41 for displaying a first pattern 72. The first pattern 72 represents an arc or circumference with a diameter corresponding to the maximum diameter of the tool that can be held in the tool holder 32.

[0132] The machine tool 100 in this embodiment includes a tool magazine 10.

[0133] According to the tool magazine 10 and machine tool 100 of Embodiment 1 of the present invention configured as such, when the operator manually installs a tool into the tool holder 32, the maximum diameter of the tool that can be held in the tool holder 32 can be visually identified by confirming the arc or circumference represented by the first pattern 72 displayed on the display unit 51. Thus, the operator can easily and appropriately perform manual tool installation and removal operations.

[0134] Furthermore, the tool magazine in this invention is not limited to a composite machining center. For example, it can also be applied to a lathe with a tool holder that has an ATC function, a vertical machining center or a horizontal machining center, or an AM / SM hybrid machining center that can perform both AM (Additive Manufacturing) and SM (Subtractive Manufacturing) machining of workpieces.

[0135] (Implementation Method 2)

[0136] Figure 9 This is a front view showing the display unit included in the tool magazine according to Embodiment 2 of the present invention. Figure 9 Compared with Implementation Method 1 Figure 4 Correspondingly, the tool magazine of this embodiment has essentially the same structure as the tool magazine 10 of Embodiment 1. Hereinafter, repeated descriptions of the same structure will not be provided.

[0137] Reference Figure 9 The tool holders of the tools housed in the tool magazine of this embodiment are of the CAPTO standard. The tool magazine has a display section 81 corresponding to the CAPTO.

[0138] The second pattern 61 (61p, 61q, 61r) is shown on the plate 52. The second pattern 61p is composed of a mark indicating a predetermined position J. In this embodiment, the predetermined position J is located at... Figure 9 Given the premise that the second pattern 61p is located on the right side of the diagram, the second pattern 61p is positioned on the opposite side to the second pattern 61p in Embodiment 1.

[0139] The second pattern 61q consists of a graphic schematically representing the shape of the CAPTO knife handle. The second pattern 61q has a polygonal shape of a triangle centered at point 131. At a designated phase position centered at point 131, a recess 66 is provided that is recessed inward in a radial direction from the outer periphery of the polygonal shape toward point 131.

[0140] The second pattern 61q and the second pattern 61r indicate the orientation of the tool held in the tool holder 32, positioned at the predetermined position J, in the direction about its axis of rotation. The second pattern 61r is arranged circumferentially at the same phase position as the recess 66 at the center point 131. The second pattern 61r is arranged radially outward from the recess 66 at the center point 131. The second pattern 61r consists of a graphic of an arrow indicating the recess 66.

[0141] The tool magazine of Embodiment 2 of the present invention, configured in this way, can achieve the same effects as those described in Embodiment 1.

[0142] (Implementation Method 3)

[0143] Figure 10 This is a front view showing the display unit included in the tool magazine according to Embodiment 3 of the present invention. Figure 10 Compared with Implementation Method 1 Figure 4 Correspondingly, the tool magazine of this embodiment has essentially the same structure as the tool magazine 10 of Embodiment 1. Hereinafter, repeated descriptions of the same structure will not be provided.

[0144] Reference Figure 10The first pattern 72 (72N, 72W) is displayed on the display section 51 (display surface 54). In this embodiment, the first pattern 72 uses the shaded area 150 to represent an arc or circumference with a diameter corresponding to the maximum diameter of the tool that can be held in the tool holder 32.

[0145] The shaded area 150 is a ring-shaped area centered at point 131. The outer perimeter of the shaded area 150 has a diameter of 130 mm, and the inner perimeter of the shaded area 150 has a diameter of 70 mm. The first pattern 72N is an arc represented by the boundary of the outer perimeter of the shaded area 150, and the first pattern 72W is a circle represented by the boundary of the inner perimeter of the shaded area 150.

[0146] Furthermore, the first pattern 72 is not limited to the shaded area 150 described above. For example, it can also be represented by the boundary of an area distinguished by color, which is an arc or circumference corresponding to the maximum diameter of the tool that can be held in the sheath 32.

[0147] The tool magazine of Embodiment 3 of the present invention, configured in this way, can achieve the same effects as those described in Embodiment 1.

[0148] (Implementation Method 4)

[0149] Figure 11 This is a perspective view showing the tool magazine according to Embodiment 4 of the present invention. The tool magazine of this embodiment has essentially the same structure as the tool magazine 10 of Embodiment 1. Hereinafter, repeated descriptions of the same structure will not be provided.

[0150] Reference Figure 11 In this embodiment, the conveying unit 36 ​​is configured to convey a plurality of tool holders 32 along a circular path 121. The conveying unit 36 ​​is arranged such that the path 121 is positioned on the X-axis-Y-axis plane. The conveying unit 36 ​​is configured such that the tool holders 32 conveyed to the predetermined position J can be manually attached and detached.

[0151] The tool magazine cover 41 is provided with an opening 42 for manually loading and unloading tools from the tool holder 32, which has been transported to a predetermined position J. The opening 42 has a front opening 42y and a side opening 42z. The front opening 42y opens towards the +Y axis (front of the machine tool), forming an opening surface parallel to the X-Z axis plane. The side opening 42z opens towards the -Z axis, forming an opening surface parallel to the X-Y axis plane. The end of the front opening 42y in the -Z axis direction is connected to the end of the side opening 42z in the +Y axis direction.

[0152] A tool magazine door 43 is provided at the opening 42. The tool magazine door 43 has a transparent window. The tool magazine door 43 is configured to open and close between a closed position that blocks the opening 42 and an open position that opens the opening 42. The tool magazine door 43 is supported by a tool magazine cover 41 and is able to rotate about a rotation axis 141 extending in the X-axis direction.

[0153] The tool magazine door 43 has a front door portion 43y and a side door portion 43z. When the tool magazine door 43 is positioned in the closed position, blocking the opening 42, the front door portion 43y blocks the front opening 42y, and the side door portion 43z blocks the side opening 42z. The end portion of the front door portion 43y in the -Z axis direction and the end portion of the side door portion 43z in the +Y axis direction are connected to form a corner.

[0154] During manual tool changing, the tool is inserted or removed along the central axis 122 of the tool holder 32, which is conveyed to the predetermined position J. The central axis 122 of the tool holder 32, located at the predetermined position J, extends obliquely downward in a direction orthogonal to the Z-axis and intersecting the X-axis and Y-axis at an angle.

[0155] The display unit 51 is disposed to the side of the predetermined position J. The display unit 51 is disposed adjacent to the predetermined position J in the Z-axis direction. The display surface 54 is formed by a plane orthogonal to the central axis 122 of the tool holder 32 positioned at the predetermined position J. The display surface 54 is opposite to the opening surface formed by the front opening 42y in the tool magazine cover 41.

[0156] The tool magazine of Embodiment 4 of the present invention, configured in this way, can achieve the same effects as those described in Embodiment 1.

[0157] The embodiments disclosed herein should be considered 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 in the same sense and scope as the claims.

[0158] Industrial availability

[0159] This invention is applied to a tool magazine that can accommodate multiple cutting tools.

[0160] Explanation of reference numerals in the attached figures

[0161] 10. Tool magazine; 21. Cover; 22. First door; 23. Second door; 24. 25. Transparent window; 26. Side cover; 31. Tool magazine base; 32. Tool holder; 33. Conveyor chain; 34. Decorative panel; 36. 36A, 36B, 36C. Conveying section; 37. Drive sprocket; 38. Driven sprocket; 41. Tool magazine cover; 42. 42A, 42B, 42C. Opening; 42y. Front opening; 42z. Side opening; 43. 43A, 43B, 43C. Tool magazine door; 43y. Front door; 43z. Side door; 46. 46A, 46B, 46C. First operating section; 47. 47 A, 47B, 47C, Second operating section; 51, 81, Display section; 52, Plate; 53, Light-emitting device; 54, Display surface; 56, 56P, 56Q, 56R, Light-transmitting section; 61, 61p, 61q, 61r, Second pattern; 64, V-groove; 65, Recess; 66, Dent; 71, 71N, 71W, Text; 72, 72N, 72W, First pattern; 100, Machine tool; 110, Machining area; 121, 121A, 121B, 121C, Path; 122, Central axis; 131, Center point; 141, Rotation axis; 150, Shaded area; J, Predetermined position.

Claims

1. A tool magazine, wherein, This tool magazine has the following features: A conveying unit having multiple tool holders for holding tools in a detachable manner, the conveying unit being used to convey the multiple tool holders; and A cover, which is used to house the conveying unit. Regarding the conveying unit, the tool holding unit, after being conveyed to the predetermined position, allows for manual installation and removal of the tool. The tool magazine also includes a display unit, which is located inside the housing, for displaying the first pattern. The first pattern represents an arc with a diameter corresponding to the maximum diameter of the tool that can be held in the tool holder.

2. The tool magazine according to claim 1, wherein, The tool is inserted or removed along a predetermined central axis relative to the tool holder that has been conveyed to the predetermined position. The display unit has a display surface, which is composed of a plane orthogonal to the predetermined central axis, for displaying the first pattern.

3. The tool magazine according to claim 1 or 2, wherein, The display also shows the maximum diameter of the tool that can be held in the tool holder.

4. The tool magazine according to claim 1 or 2, wherein, The display unit also displays first information related to the tool held in the tool holder and / or the transport unit using a variable display configuration.

5. The tool magazine according to claim 4, wherein, The first information includes at least one of the following: the presence or absence of a tool in the tool holder at the predetermined position, the clamping state of the tool in the tool holder at the predetermined position, and the operational status of the delivery of the tool holder in the delivery unit.

6. The tool magazine according to claim 4, wherein, The display unit has: The sheet metal includes a light-transmitting portion; and A light-emitting device that emits light from the back side of the plate toward the light-transmitting portion in multiple light-emitting modes.

7. The tool magazine according to claim 6, wherein, The multiple light emission modes include a specified light emission state selected from on, off, and flashing.

8. The tool magazine according to claim 6, wherein, The multiple emission modes include emission modes with a specified emission color selected from multiple colors.

9. The tool magazine according to claim 6, wherein, The plate also displays a second piece of information, which includes at least one of the following: an identifier indicating the predetermined position, a tool holder standard for the tool held in the tool holder, and the orientation of the tool held in the tool holder about its axis of rotation.

10. A tool magazine, wherein, This tool magazine has the following features: A conveying unit having multiple tool holders for holding tools in a detachable manner, the conveying unit being used to convey the multiple tool holders; and A cover, which is used to house the conveying unit. Regarding the conveying unit, the tool holding unit, after being conveyed to the predetermined position, allows for manual installation and removal of the tool. The tool magazine also includes a display unit, which is located inside the housing, for displaying the first pattern. The first pattern represents an arc or circumference with a diameter corresponding to the maximum diameter of the tool that can be held in the tool holder. The tool is inserted or removed along a predetermined central axis relative to the tool holder that has been conveyed to the predetermined position. The display unit has a display surface, which is composed of a plane orthogonal to the predetermined central axis, for displaying the first pattern. The display unit is located to the side of the predetermined position. The height of the center point of the arc or the circumference is consistent with the height of the predetermined central axis.

11. A tool magazine, wherein, This tool magazine has the following features: A conveying unit having multiple tool holders for holding tools in a detachable manner, the conveying unit being used to convey the multiple tool holders; and A cover, which is used to house the conveying unit. Regarding the conveying unit, the tool holding unit, after being conveyed to the predetermined position, allows for manual installation and removal of the tool. The tool magazine also includes a display unit, which is located inside the housing, for displaying the first pattern. The first pattern represents an arc or circumference with a diameter corresponding to the maximum diameter of the tool that can be held in the tool holder. The cover is provided with an opening for manually attaching and detaching the tool through the tool holder when it is transported to the predetermined position. At least a portion of the display portion is opposite to the opening surface formed by the opening portion in the cover.

12. A tool magazine, wherein, This tool magazine has the following features: A conveying unit having multiple tool holders for holding tools in a detachable manner, the conveying unit being used to convey the multiple tool holders; and A cover, which is used to house the conveying unit. Regarding the conveying unit, the tool holding unit, after being conveyed to the predetermined position, allows for manual installation and removal of the tool. The tool magazine also includes a display unit, which is located inside the housing, for displaying the first pattern. The first pattern represents an arc or circumference with a diameter corresponding to the maximum diameter of the tool that can be held in the tool holder. The display unit has: The sheet metal includes a light-transmitting portion; and A light-emitting device that emits light from the back side of the plate toward the light-transmitting portion in multiple light-emitting modes. The plate also displays a second set of information, which includes at least one of the following: an indicator pointing to the predetermined position, a tool holder standard for the tool held in the tool holder, and the orientation of the tool held in the tool holder about its axis of rotation. The second pattern represents at least one of the following: the identifier indicating the predetermined position, the tool holder standard of the tool held in the tool holder, and the orientation of the tool held in the tool holder about its axis of rotation. The light-transmitting portion corresponds to the second pattern.

13. A machine tool, wherein, The machine tool is equipped with a tool magazine as described in any one of claims 1 to 12.

Images