Machine tool

Abstract

To provide a machine tool that is configured so that a moving range of a tool magazine can be set to overlap with at least a portion of a main spindle support part not only to secure the moving range of the tool magazine but also to reduce a size of the machine tool so as to downsize a structure of the machine tool.SOLUTION: A machine tool according to the present invention comprises: a main spindle 110 that is used for mounting a tool thereon; a work-piece support part 120 for supporting a work-piece that is machined with the tool mounted on the main spindle; a tool magazine 130 that is provided on the work-piece support part, and holds a plurality of tools; a first moving mechanism that moves the work-piece support part in a first direction; and a main spindle support part that supports the main spindle. The tool magazine can move to a position overlapping with at least a portion of the main spindle support part, in a second direction that is orthogonal to the first direction.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a machine tool. [Background technology]

[0002] Conventionally, in machine tools that use tools to machine workpieces, a tool magazine that stores a plurality of tools is provided, and the necessary tools are replaced according to the machining conditions to perform machining efficiently. As an example, in Patent Document 1, a tool magazine is provided on a table that holds a workpiece, and in a machining process, the tool magazine is moved to a position away from the spindle on which the tools are attached, and in a tool replacement process, the tool magazine is moved to a position close to the spindle, so that the tool attached to the spindle can be replaced with a tool in the tool magazine. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-123575 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in Patent Document 1, the spindle support part that supports the spindle is disposed behind the tool magazine, and therefore, in order to ensure the movement range of the tool magazine, it is necessary to increase the size of the machine tool in the movement direction of the tool magazine, which results in an increase in the size of the machine tool structure. [Means for solving the problem]

[0005] In order to solve the above-mentioned problems, the present invention provides a machine tool that not only ensures the range of movement of the tool magazine by arranging the range of movement of the tool magazine so that it overlaps with at least a portion of the spindle support part when viewed from the side, but also reduces the size of the machine tool and makes the structure more compact.

[0006] In an embodiment of technical proposal 1 of the present invention, a machine tool is provided which includes a spindle used to attach a tool, a work support part for supporting a workpiece to be machined by the tool attached to the spindle, a tool magazine provided on the work support part and holding a plurality of tools, a first moving mechanism for moving the work support part in a first direction, and a spindle support part for supporting the spindle, wherein the tool magazine is movable in a second direction perpendicular to the first direction to a position overlapping at least a portion of the spindle support part.

[0007] According to the above embodiment, by moving the work support part with the first moving mechanism, the tool magazine arranged on the work support part is also moved in sync, and the movement range of the tool magazine is set so as to overlap at least a portion of the spindle support part when viewed from the side. This not only ensures the movement range of the tool magazine, but also reduces the size of the machine tool and makes the structure more compact.

[0008] In a machine tool according to an embodiment of technical proposal 2 of the present invention, the spindle support portion has two pillars spaced apart in the second direction, and the tool magazine can pass between the two pillars.

[0009] According to the above embodiment, the movement range of the tool magazine can be secured, and the size of the machine tool can be reduced to make the structure more compact.

[0010] In a machine tool according to an embodiment of technical proposal 3 of the present invention, the spindle support portion has a first part provided in the second direction relative to the tool magazine and a second part provided in the first direction relative to the tool magazine, and the tool magazine is movable in the second direction to a position overlapping with at least a portion of the first part.

[0011] According to the above embodiment, the movement range of the tool magazine can be secured, and the size of the machine tool can be reduced to make the structure more compact.

[0012] In a machine tool according to an embodiment of Technical Solution 4 of the present invention, the tool magazine overlaps at least a portion of the spindle support in the second direction when the workpiece support is located at the machining position.

[0013] According to the above embodiment, when the workpiece support portion is located at the machining position, the tool magazine can be moved away from the spindle performing machining while approaching the spindle support portion.

[0014] In a machine tool according to an embodiment of Technical Solution 5 of the present invention, the tool magazine does not overlap with the spindle support in the second direction when the workpiece support is located at a tool changing position.

[0015] According to the above embodiment, when the workpiece support portion is located at the tool change position, the tool magazine can approach the spindle performing tool change while being separated from the spindle support portion.

[0016] In a machine tool according to an embodiment of Technical Solution 6 of the present invention, the tool magazine has a tool holder that supports the multiple tools, and an openable and closable magazine cover that covers the periphery of the tool holder.

[0017] According to the above embodiment, the tool magazine can protect the tools supported by the tool holders by closing the magazine cover during the machining process, and can open the magazine cover during the tool changing process to change the tools.

[0018] In a machine tool according to an embodiment of technical solution 7 of the present invention, the first direction is a front-to-rear direction, and the tool magazine is disposed behind the workpiece support.

[0019] According to the above embodiment, the movement range of the tool magazine can be designed according to the position of the tool magazine.

[0020] In a machine tool according to an embodiment of Technical Solution 8 of the present invention, the workpiece support portion has a table for fixing a workpiece, and a rotation mechanism for rotating the table with the horizontal direction as a rotation axis.

[0021] According to the above embodiment, the work support portion can be provided with the operational functions of linear movement and rotation along a horizontal axis.

[0022] In a machine tool according to an embodiment of a technical solution 9 of the present invention, the spindle is movable in the second direction.

[0023] According to the above embodiment, the spindle can be provided with a linear movement function.

[0024] In a machine tool according to an embodiment of technical proposal 10 of the present invention, the machine tool further includes a second moving mechanism for moving the spindle in the second direction, and the spindle support portion further supports the second moving mechanism, and when the work support portion is located at the machining position, the tool magazine overlaps with at least a portion of the second moving mechanism in a third direction perpendicular to the first direction and the second direction.

[0025] According to the above embodiment, the movement range of the tool magazine can be secured, and the size of the machine tool can be reduced to make the structure more compact. Effect of the Invention

[0026] As described above, in the machine tool of the present invention, the tool magazine is provided on the work support part, the tool magazine is moved in a first direction in synchronization with the work support part, and the movement range of the tool magazine is set so as to overlap with at least a part of the spindle support part when viewed from the side. This makes it possible to ensure the movement range of the tool magazine in the machine tool of the present invention, and to reduce the size of the machine tool and make the structure more compact. [Brief description of the drawings]

[0027] [Figure 1] FIG. 2 is a schematic perspective view of a machine tool in a first operating state according to an embodiment of the present invention; [Diagram 2] 2 is a schematic perspective view of the machine tool shown in FIG. 1 in a second operating state. FIG. [Diagram 3]2 is a schematic diagram of a cross section taken along the line II' of the machine tool shown in FIG. 1. [Figure 4] FIG. 4 is a schematic diagram of a cross section of a modified example of the machine tool shown in FIG. 3. [Figure 5A] 2 is a schematic diagram showing an operation of removing a tool from a spindle and attaching a tool from a tool magazine to the spindle in a tool changing process of the machine tool shown in FIG. 1. [Figure 5B] 2 is a schematic diagram showing an operation of removing a tool from a spindle and attaching a tool from a tool magazine to the spindle in a tool changing process of the machine tool shown in FIG. 1. [Figure 5C] 2 is a schematic diagram showing an operation of removing a tool from a spindle and attaching a tool from a tool magazine to the spindle in a tool changing process of the machine tool shown in FIG. 1. [Figure 5D] 2 is a schematic diagram showing an operation of removing a tool from a spindle and attaching a tool from a tool magazine to the spindle in a tool changing process of the machine tool shown in FIG. 1. [Figure 5E] FIG. 2 is a schematic diagram showing the operation of removing a tool from a spindle, among the schematic operation diagrams showing the operation of removing a tool from a spindle and attaching a tool from a tool magazine to the spindle in a tool changing process of the machine tool shown in FIG. 1. [Figure 5F] 2 is a schematic diagram showing an operation of removing a tool from a spindle and attaching a tool from a tool magazine to the spindle in a tool changing process of the machine tool shown in FIG. 1. [Figure 5G] FIG. 2 is a schematic diagram showing the attachment of a tool to the spindle, among schematic diagrams showing the removal of a tool from the spindle and the attachment of a tool from a tool magazine to the spindle in a tool changing process of the machine tool shown in FIG. 1. [Figure 5H] 2 is a schematic diagram showing an operation of removing a tool from a spindle and attaching a tool from a tool magazine to the spindle in a tool changing process of the machine tool shown in FIG. 1. [Figure 5I] 2 is a schematic diagram showing an operation of removing a tool from a spindle and attaching a tool from a tool magazine to the spindle in a tool changing process of the machine tool shown in FIG. 1. [Figure 5J]FIG. 2 is a schematic diagram showing the operation of the machine tool shown in FIG. 1 during a tool changing process, in which a tool is removed from the spindle and a tool in a tool magazine is attached to the spindle, and the operation is schematic showing the operation of the spindle changing the tool. [Figure 6] 1. FIG. 4 is a schematic diagram illustrating an operation of the machine tool shown in FIG. 1 moving the tool magazine further away from the machining area during a machining process. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] Examples of exemplary embodiments of the present invention are described in the accompanying drawings. Wherever possible, the same component reference numerals are used to represent the same or similar parts in the drawings and description. Hereinafter, specific structures and operation processes of the machine tool 100 of this embodiment and the machine tool 100A of its modified example will be described with reference to Figs. 1 to 6. However, this is merely an example of the present invention, and the specific structures and operation processes of the machine tool 100 and the machine tool 100A can be adjusted as necessary, and the present invention is not limited thereto.

[0029] 1 to 3, in this embodiment, the machine tool 100 includes a spindle 110, a workpiece support 120, a tool magazine 130, a first moving mechanism 140, and a spindle support 150. The spindle 110 is used to attach the tool 20. The workpiece support 120 is used to support a workpiece (not shown) to be machined by the tool 20 attached to the spindle 110. The tool magazine 130 is provided on the workpiece support 120 and holds a plurality of tools 20 (six tools are shown in FIG. 2, but are not limited thereto). The first moving mechanism 140 moves the workpiece support 120 in a first direction (e.g., the front-rear direction Y). The spindle support 150 supports the spindle 110. Here, in a second direction (e.g., the left-right direction X) perpendicular to the first direction (e.g., the front-rear direction Y), the tool magazine 130 can move to a position overlapping at least a part of the spindle support 150 (corresponding to the first operating state in FIG. 1). In this way, by moving the workpiece support part 120 by the first moving mechanism 140, the tool magazine 130 arranged on the workpiece support part 120 is also moved in sync, and the movement range of the tool magazine 130 is set so as to overlap at least a part of the spindle support part 150 when viewed from the side (i.e., when viewed from the second direction (e.g., the left-right direction X)). This not only ensures the movement range of the tool magazine 130, but also reduces the size of the machine tool 100 and makes the structure more compact. Each member will be described in detail below.

[0030] Specifically, in this embodiment, as shown in FIG. 1 and FIG. 2, the work support part 120 and the first moving mechanism 140 are connected. The first moving mechanism 140 has, for example, a first guide part 142 (for example, a combination of a linear motion guide and a ball screw) extending in a first direction (front-rear direction Y) and a driving part (for example, a motor (not shown)) that moves the work support part 120 along the first guide part 142, thereby moving the work support part 120 in the first direction (front-rear direction Y). In this way, the work support part 120 can move to a processing area (for example, the front side of the tool magazine 130) according to the processing conditions required for the work to be supported. Here, the movement of the work support part 120 in the front-rear direction Y is taken as an example of the first direction, but for example, the work support part 120 may be configured to move in other directions, and the work support part 120 may be configured to move in a plurality of directions by other moving mechanisms not shown. Further, here, the first guide portion 142 and the drive portion are taken as an example of the first movement mechanism 140, but the present invention does not limit the structure of the first movement mechanism 140, and it can be adjusted as necessary.

[0031] In this embodiment, as shown in FIG. 1 and FIG. 2, the workpiece support unit 120 has, for example, a table 122 and a rotation mechanism 124. The table 122 is used to fix the workpiece, and the rotation mechanism 124 rotates the table 122 about a horizontal direction (for example, the left-right direction X) as a rotation axis A. Here, the rotation mechanism 124 is provided, for example, on a first moving mechanism 140 by a base 126, and the table 122 is provided on the rotation mechanism 124. The entire workpiece support unit 120 can be moved by the first moving mechanism 140, and the table 122 of the workpiece support unit 120 can be further rotated by the rotation mechanism 124. In this way, the workpiece support unit 120 can be given the operation functions of linear movement and rotation along a horizontal axis, so that more diverse processing methods can be provided. Here, the table 122 is rotated about the left-right direction X as a rotation axis A as an example of a horizontal direction, but the table 122 can also be rotated about another horizontal direction or a vertical direction as a rotation axis. Further, although the table 122 and the rotation mechanism 124 are used here as an example of the workpiece support unit 120, it may be the table 122 alone. The present invention does not limit the structure of the workpiece support unit 120, and it can be adjusted as necessary.

[0032] Further, in this embodiment, as shown in Figs. 1 and 2, the tool magazine 130 accommodates a plurality of tools 20. The tool magazine 130 has, for example, a tool holder 132 that supports a plurality of tools 20, and an openable and closable magazine cover 134 that covers the periphery of the tool holder 132. As an example, as shown in Fig. 2, the tool holder 132 is provided with a plurality of grips 132a that can hold the tools 20, and the openings of the grips 132a are open toward the front side in the front-rear direction Y, so that the tools 20 are supported by the tool holder 132 by being held by these grips 132a. Here, the tool holder 132 of the tool magazine 130 supports a plurality of tools 20 so as to be aligned in a line in the left-right direction X. As a result, the spindle 110 used to attach the tools 20 and the tool magazine 130 used to store the tools 20 move relatively in the left-right direction X, so that the required tools 20 can be selected and replaced (as described later). Here, six tools 20 are supported by providing six grips 132a on the tool holder 132, but the number of tools 20 and grips 132a can be adjusted as needed. In addition, the means of the tool holder 132 used to support the tools 20 is not limited to the grips 132a, and may be other support members capable of supporting the tools 20. In addition, while the tool holder 132 supports a plurality of tools 20 in a line in the left-right direction X as an example, the tool holder 132 can also support a plurality of tools 20 in a line in another direction, and can also support a plurality of tools 20 in a matrix shape. The present invention is not limited to an embodiment in which the tool magazine 130 supports the tools 20 using the tool holder 132, and can be adjusted as needed. In addition, the magazine cover 134 is closed during the machining process of the machine tool 100 (see FIG. 1) to prevent chips and the like from adhering to the tools 20 supported by the tool holder 132. The magazine cover 134 is opened during a tool changing process of the machine tool 100 (see FIG. 2) to allow the tool 20 attached to the spindle 110 to be replaced with another tool 20 supported by the tool holder 132 .

[0033] 1 and 2, in this embodiment, the tool magazine 130 is provided on the workpiece support part 120 and can move synchronously with the workpiece support part 120. As an example, the tool magazine 130 has a support member 136 that supports the tool holder 132 in addition to the tool holder 132 and the magazine cover 134, and the tool holder 132 and the magazine cover 134 are provided on the workpiece support part 120 by the support member 136 (for example, disposed on the above-mentioned base 126). In the process in which the first moving mechanism 140 moves the workpiece support part 120 in the first direction (front-rear direction Y), the tool magazine 130 also moves in the first direction (front-rear direction Y), so that the positions of the workpiece support part 120 and the tool magazine 130 can be adjusted according to the operation process of the machine tool 100. Although the support member 136 is used to mount the tool magazine 130 on the work support portion 120 as an example here, other members may be used to mount the tool magazine 130 on the work support portion 120, and the tool holders 132 of the tool magazine 130 may be directly mounted on the work support portion 120. The present invention is not limited to the embodiment in which the tool magazine 130 and the work support portion 120 move synchronously in the first direction, and adjustments may be made as necessary.

[0034] In this embodiment, the tool magazine 130 and the workpiece support unit 120 are arranged side by side in the first direction, and thus the positions of the workpiece support unit 120 and the tool magazine 130 in the first direction can be adjusted according to the work process of the machine tool 100. When the first direction is the front-rear direction Y, the tool magazine 130 is arranged, for example, behind the workpiece support unit 120. When the machine tool 100 is in a machining process, the workpiece support unit 120 is moved by the first moving mechanism 140 to a position corresponding to the spindle 110 (as shown in FIG. 1). This allows machining of the workpiece supported by the workpiece support unit 120. When the machine tool 100 is in a tool replacement process, the workpiece support unit 120 is moved by the first moving mechanism 140 to a position forward of the machining process position, and the tool magazine 130 is moved to a position corresponding to the spindle 110 (as shown in FIG. 2). This allows tool replacement with the tool 20 stored in the tool magazine 130. As a result, by arranging the work support part 120 and the tool magazine 130 at positions adjacent to each other, the movement range in the first direction described above can be shortened, and the size of the machine tool 100 in the first direction can also be reduced. In this way, the movement range of the tool magazine 130 can be designed according to the position of the tool magazine 130, which improves the tool exchange efficiency of the machine tool 100 and allows the structure to be made compact. Here, the work support part 120 and the tool magazine 130 are provided adjacent to each other in the first direction, and the tool magazine 130 is arranged behind the work support part 120 as an example, but the relative positions of the work support part 120 and the tool magazine 130 can be adjusted as necessary. For example, the tool magazine 130 may be arranged on either the left or right side of the work support part 120.

[0035] 1, the magazine cover 134 includes a first cover 134A and a second cover 134B that are arranged opposite to each other in a first direction (front-rear direction Y) and can be opened and closed relatively. The tool magazine 130 moves in a direction (e.g., backward) away from the spindle 110 during a machining process of the machine tool 100, and a workpiece supported by the workpiece support portion 120 is machined using a tool 20 attached to the spindle 110. At this time, the magazine cover 134 is closed during the machining process of the machine tool 100 (i.e., the first cover 134A and the second cover 134B overlap each other to cover the periphery of the tool holder 132), preventing chips and the like from adhering to the tool 20 supported by the tool holder 132. 2, the tool magazine 130 moves in a direction approaching the spindle 110 (for example, forward) in a tool changing process of the machine tool 100, and exchanges the tool 20 attached to the spindle 110 with the tool 20 housed in the tool magazine 130. At this time, the magazine cover 134 is opened in the tool changing process of the machine tool 100 (i.e., at least a part of the first cover 134A and the second cover 134B are separated from each other to form an opening, exposing the tool 20 supported by the tool holder 132), so that the tool 20 attached to the spindle 110 can be exchanged with another tool 20 supported by the tool holder 132. Therefore, not only the movement of the tool magazine 130 and the movement of the workpiece support part 120 are linked to each other, but also the opening and closing operation of the magazine cover 134 and the movement of the tool magazine 130 are linked to each other. In this manner, the tool magazine 130 can protect the tool 20 supported by the tool holder 132 by closing the magazine cover 134 during the machining process, and can open the magazine cover 134 to perform tool replacement during the tool replacement process.

[0036] As an example, in this embodiment, the machine tool 100 further includes, for example, an opening / closing mechanism 160, which opens and closes the magazine cover 134 during the movement of the tool magazine 130. The opening / closing mechanism 160 includes a cam 162 and a link member 164. The cam 162 is located, for example, on a fixed structure (for example, a base portion 190 described later) of the machine tool 100, and the link member 164 is connected to the magazine cover 134 and faces the cam 162 in the first direction (front-rear direction Y). The link member 164 approaches and abuts against the cam 162 during the movement of the tool magazine 130, thereby displacing the magazine cover 134 from a closed state (corresponding to the first operating state in FIG. 1) to an open state (corresponding to the second operating state in FIG. 2). Also, the link member 164 moves away from the cam 162 during the movement of the tool magazine 130, thereby displacing the magazine cover 134 from an open state (corresponding to the second operating state in FIG. 2) to a closed state (corresponding to the first operating state in FIG. 1). In this way, the opening and closing operation of the magazine cover 134 is linked to the movement of the tool magazine 130 driven by the work support part 120 via the opening and closing mechanism 160, so that the magazine cover 134 can be opened more efficiently when changing tools. Here, the opening and closing mechanism 160 includes the cam 162 and the link member 164 as an example, but the opening and closing mechanism 160 may use other members for opening and closing the magazine cover 134, or may be modified to perform the opening and closing operation on the magazine cover 134 using a motor or the like. Alternatively, the installation of the opening and closing mechanism 160 may be omitted. The present invention does not limit the specific configuration, operation method, and installation or non-installation of the opening and closing mechanism 160. In addition, here, the magazine cover 134 includes the first cover 134A and the second cover 134B as an example, but the magazine cover 134 may be only the first cover. As long as the magazine cover 134 covers the periphery of the tool holder 132 and can be opened and closed during the movement of the tool magazine 130, the present invention does not limit the specific structure and operation method of the magazine cover 134. In addition, although the tool magazine 130 is shown here as including a tool holder 132 and a magazine cover 134 as an example, as long as the tool magazine 130 can support a plurality of tools 20 and provide replaceable tools 20 in the tool changing process, the present invention does not limit the specific structure of the tool magazine 130 and can be adjusted as needed.

[0037] In this embodiment, as shown in Figs. 1 and 2, the spindle 110 used to attach the tool 20 is provided on the side away from the workpiece support 120 and the tool magazine 130 in the vertical direction Z. For example, the spindle 110 is positioned above the workpiece support 120 and the tool magazine 130 in the vertical direction Z by being supported by the spindle support 150. The spindle 110 used to attach the tool 20 is movable in a second direction (for example, the left-right direction X) perpendicular to the first direction (the front-back direction Y). As an example, the machine tool 100 further includes, for example, a second movement mechanism 170. The second movement mechanism 170 includes a second guide portion 172 (for example, a combination of a linear motion guide and a ball screw) extending in the left-right direction X, and a drive portion (for example, a motor (not shown)) for moving the spindle 110 along the second guide portion 172, thereby making the spindle 110 movable in the left-right direction X. As can be seen from this, when the machine tool 100 is in a tool changing process, the spindle 110 moves in the left-right direction X to select one of the multiple tools 20 lined up in a row along the left-right direction X of the tool holder 132 and change the tool. In this way, the spindle 110 can be given a linear movement function. Here, the second guide unit 172 and the drive unit are taken as an example of the second movement mechanism 170, but the present invention does not limit the structure of the second movement mechanism 170. Also, here, the movement of the spindle 110 in the left-right direction X is taken as an example of the second direction, but the present invention does not limit the movement direction of the spindle 110.

[0038] For example, in this embodiment, as shown in Figs. 1 and 2, the spindle 110 can move in a third direction (e.g., up-down direction Z) perpendicular to the first direction (front-back direction Y) and the second direction (e.g., left-right direction X). As an example, the machine tool 100 further includes a third moving mechanism 180. The third moving mechanism 180 includes a third guide portion 182 (e.g., a combination of a linear motion guide and a ball screw) extending in the up-down direction Z, and a drive portion (e.g., a motor (not shown)) for moving the spindle 110 along the third guide portion 182, thereby making the spindle 110 movable in the up-down direction Z. As can be seen from this, the spindle 110 moves downward in the machining process to approach the workpiece support portion 120, and the attached tool 20 can be used to machine the workpiece supported by the workpiece support portion 120. In addition, the spindle 110 moves downward in a tool changing process to approach the tool magazine 130, and can change the tool with the tool 20 stored in the tool magazine 130. The positions of the work support part 120 and the tool magazine 130 in the first direction (front-rear direction Y) are adjusted by the movement of the first moving mechanism 140 (as described above), and the spindle 110 can perform processing or tool change according to the work process of the machine tool 100. In this way, the spindle 110 can be given a linear movement function. Here, the third guide part 182 and the drive part are taken as an example of the third moving mechanism 180, but the present invention does not limit the structure of the third moving mechanism 180. Furthermore, here, the movement of the spindle 110 in the vertical direction Z is taken as an example of the third direction, but the present invention does not limit the movement direction of the spindle 110. In particular, here, the spindle 110 is taken as an example that can move in both the vertical direction Z and the horizontal direction X, but the spindle 110 may be moved in only one of the linear directions. Although the spindle 110 is shown as being movable here, it may be installed so as not to be movable, in which case the machining process and the tool changing process are carried out by the movable work support part 120 and the movable tool magazine 130. The present invention is not limited to the above embodiment.

[0039] 1 and 2, in this embodiment, the spindle support part 150 supports the spindle 110. At least a part of the spindle support part 150 extends in the up-down direction Z and supports the spindle 110 at a position above the work support part 120 and the tool magazine 130. When the machine tool 100 is provided with a second moving mechanism 170 and a third moving mechanism 180 to move the spindle 110 in the left-right direction X, which is the second direction, and in the up-down direction Z, which is the third direction, the spindle support part 150 further supports the second moving mechanism 170 and the third moving mechanism 180, thereby supporting the spindle 110 that is installed on the second moving mechanism 170 and the third moving mechanism 180 and is movable. As an example, when the first direction is the front-rear direction Y, the spindle support part 150 is disposed, for example, behind the work support part 120, the second moving mechanism 170 extends in the second direction (left-right direction X) and is supported by the spindle support part 150 at a position above the work support part 120 and the tool magazine 130, the third moving mechanism 180 extends in the third direction (up-down direction Z) and is installed on the second moving mechanism 170, and the spindle 110 is installed on the third moving mechanism 180. In this way, the spindle 110 is located at a position above the work support part 120 and the tool magazine 130. Here, the second moving mechanism 170 and the third moving mechanism 180 are also supported by the spindle support part 150 as an example, but the spindle 110 may be directly attached to the spindle support part 150 by an attachment structure not shown. The present invention is not limited to the above embodiment.

[0040] Further, in this embodiment, as shown in FIG. 1 and FIG. 2, the machine tool 100 further includes, for example, a base unit 190. The base unit 190 supports the workpiece support unit 120 as a base of the machine tool 100. For example, the base unit 190 supports the workpiece support unit 120 via the first moving mechanism 140. In addition, the base unit 190 also supports members such as the spindle 110, the tool magazine 130, and the spindle support unit 150. In this manner, the above-mentioned members of the machine tool 100 are integrally attached to the base unit 190 in a housing of the machine tool 100 (not shown). In addition, the machine tool 100 can be automatically controlled by a control system (not shown) to constitute one facility that can be used for automated machining. As an example, the machine tool 100 is, for example, a numerical control (NC) facility or a computer numerical control (CNC) facility, and can be automated to execute the above-mentioned machining process and tool replacement process. Here, the example shows that base unit 190 serves as a base for machine tool 100 to support the above-mentioned members (such as workpiece support unit 120), but the use of base unit 190 may be omitted. Furthermore, the example shows that machine tool 100 is an automated device equipped with a housing and a control system, but does not exclude an embodiment in which the machine tool 100 is operated by a user. The present invention does not limit the specific structure of machine tool 100 and the embodiments of the above-mentioned machining process and tool replacement process, and adjustments can be made as necessary.

[0041] As described above, in this embodiment, when the first direction is the front-rear direction Y, the tool magazine 130 is disposed behind the workpiece support part 120, and the spindle support part 150 is also disposed behind the workpiece support part 120. When the spindle support part 150 and the tool magazine 130 are both disposed behind the workpiece support part 120, the tool magazine 130 can move to a position overlapping at least a portion of the spindle support part 150 in a second direction (left-right direction X) perpendicular to the first direction (front-rear direction Y) (corresponding to the first operating state in FIG. 1). That is, when the machine tool 100 is viewed from the side (viewed from the second direction), the movement range of the tool magazine 130 passes through at least a portion of the spindle support part 150. In this way, when the first moving mechanism 140 moves the work support portion 120, the tool magazine 130 arranged on the work support portion 120 also moves in sync, and by arranging the movement range of the tool magazine 130 to overlap with at least a portion of the spindle support portion 150 when viewed from the side, not only is the movement range of the tool magazine 130 secured, but the size of the machine tool 100 can be reduced, making the structure more compact.

[0042] As an example, in this embodiment, as shown in Figs. 1 to 3, the spindle support part 150 has two pillars 152A, 152B spaced apart in the second direction (for example, the left-right direction X). For example, the two pillars 152A, 152B are provided on the base part 190 spaced apart in the second direction (left-right direction X) and extend in the up-down direction Z to support the spindle 110 on the upper side of the base part 190. The second movement mechanism 170 and the third movement mechanism 180 for moving the spindle 110 may also be supported on the upper side of the base part 190 by the two pillars 152A, 152B, but are not limited thereto. Furthermore, the distance between the two pillars 152A, 152B in the second direction (left-right direction X) is greater than the dimension of the tool magazine 130 in the second direction (left-right direction X). In the process of moving the tool magazine 130, the tool magazine 130 can pass between the two pillars 152A, 152B, and overlaps with at least a part of the two pillars 152A, 152B when the tool magazine 130 is viewed from the side. That is, the movement range of the tool magazine 130 in the first direction (front-rear direction Y) passes between the two pillars 152A, 152B. In this way, the movement range of the tool magazine 130 can be secured, and the size of the machine tool 100 can be reduced to miniaturize the structure.

[0043] With the above configuration, when the workpiece support portion 120 is located at the processing position (i.e., when the workpiece support portion 120 is located at the position corresponding to the spindle 110), as shown in FIG. 1, the tool magazine 130 moves backward in the first direction (front-rear direction Y) and overlaps with at least a part of the spindle support portion 150 in the second direction (left-right direction X). In addition, in a third direction (up-down direction Z) perpendicular to the first direction (front-rear direction Y) and the second direction (left-right direction X), the tool magazine 130 overlaps with at least a part of the second moving mechanism 170. That is, the tool magazine 130 moves into the space between the two pillars 152A and 152B as the spindle support portion 150 and the second moving mechanism 170 supported by the spindle support portion 150, and thus the tool magazine 130 overlaps with at least a part of the spindle support portion 150 when viewed from the second direction (left-right direction X) and with at least a part of the second moving mechanism 170 when viewed from the third direction (up-down direction Z). On the other hand, when the workpiece support 120 is located at the tool changing position (i.e., when the tool magazine 130 is located at a position corresponding to the spindle 110), as shown in FIG. 2, the tool magazine 130 moves forward in the first direction (front-rear direction Y) and does not overlap with the spindle support 150 in the second direction (left-right direction X). In this way, when the workpiece support 120 is located at the processing position, the tool magazine 130 can move away from the spindle 110 performing processing in a state where it is close to the spindle support 150, and when the workpiece support 120 is located at the tool changing position, the tool magazine 130 can move away from the spindle support 150 and approach the spindle 110 performing tool changing. Here, the two pillars 152A and 152B are used as an example of the spindle support 150, but the present invention is not limited thereto as long as the spindle support 150 can support the spindle 110 and can overlap at least a part of the moving range of the tool magazine 130.

[0044] For example, in the modification shown in FIG. 4, the machine tool 100A has a structure almost similar to that of the machine tool 100 described above, and the main difference is that the spindle support part 150A is different from the spindle support part 150 described above. In the modification shown in FIG. 4, the spindle support part 150A includes a first part 154 provided in the second direction (left-right direction X) with respect to the tool magazine 130, and a second part 156 provided in the first direction (front-back direction Y) with respect to the tool magazine 130. For example, the first part 154 is provided on the base part 190, is located on one side (e.g., the left or right side) of the tool magazine 130 in the second direction (left-back direction X), and extends in the up-down direction Z. The second part 156 is provided on the base part 190, is connected to the first part 154, is located on one side (e.g., the rear side) of the tool magazine 130 in the first direction (front-back direction Y), and extends in the up-down direction Z and the left-right direction X. The first part 154 and the second part 156 support the spindle 110 above the base part 190. The second moving mechanism 170 and the third moving mechanism 180 for moving the spindle 110 may also be supported above the base part 190 by the first part 154 and the second part 156, but are not limited to this. In the second direction (left-right direction X), the tool magazine 130 is movable to a position overlapping at least a part of the first part 154. That is, the movement range of the tool magazine 130 in the first direction (front-back direction Y) overlaps at least a part of the first part 154 when the tool magazine 130 is viewed from the side. In this way, the movement range of the tool magazine 130 can be secured, and the size of the machine tool 100A can be reduced to miniaturize the structure.

[0045] Similarly, with the above configuration, when the workpiece support part 120 is located at the machining position (i.e., when the workpiece support part 120 is located at a position corresponding to the spindle 110), the tool magazine 130 moves backward in the first direction (front-rear direction Y) and overlaps with at least a part of the spindle support part 150A in the second direction (left-right direction X). On the other hand, when the workpiece support part 120 is located at the tool exchange position (i.e., when the tool magazine 130 is located at a position corresponding to the spindle 110), the tool magazine 130 moves forward in the first direction (front-rear direction Y) and does not overlap with the spindle support part 150A in the second direction (left-right direction X). In this way, the tool magazine 130 when the workpiece support part 120 is located at the machining position can move away from the spindle 110 performing machining while approaching the spindle support part 150A, and the tool magazine 130 when the workpiece support part 120 is located at the tool exchange position can move away from the spindle support part 150A and approach the spindle 110 performing tool exchange. Here, a pair of first parts 154 are provided on both the left and right sides, and the second part 156 is connected to the pair of first parts 154 (for example, configured as a frame structure or a wall structure with a notch in the center), but only one first part 154 and one second part 156 may be provided (for example, configured as an L-shaped structure). As long as the spindle support part 150A can support the spindle 110 and can overlap at least a part of the moving range of the tool magazine 130, the present invention does not limit the specific structure of the spindle support part 150A, and it can be adjusted as necessary.

[0046] As can be seen from the above description, in this embodiment, the tool magazine 130 overlaps at least a part of the spindle support part 150 (or the spindle support part 150A) when viewed from the side during the process of moving the tool magazine 130 by the work support part 120, and the movement range of the tool magazine 130 passes through the spindle support part 150 (or the spindle support part 150A), thereby ensuring the movement range of the tool magazine, and the size of the machine tool 100 (or the machine tool 100A) can be reduced to make the structure more compact. As an example, Figs. 5A to 5J show schematic views of the operation of the machine tool 100 removing the tool 20 from the spindle 110 and attaching the tool 20 from the tool magazine 130 to the spindle 110 in the tool changing process. First, in Fig. 5A, the machine tool 100 finishes the machining process, and the third moving mechanism 180 moves the spindle 110 upward in the vertical direction Z as the third direction, and the spindle 110 is separated from the work support part 120. 5B, the first moving mechanism 140 moves the work support part 120 forward in the front-rear direction Y as the first direction, and the tool magazine 130 located behind the work support part 120 moves forward toward a predetermined position and directly below the spindle 110, making it easier to perform the tool changing process. When the work support part 120 is located at the tool changing position (i.e., when the tool magazine 130 is at a position corresponding to the spindle 110), the tool magazine 130 does not overlap with the spindle support part 150 in the second direction (left-right direction X). At the same time, during the movement of the tool magazine 130, the magazine cover 134 is displaced from a closed state to an open state, and the tool 20 supported by the tool holder 132 is exposed.

[0047] Next, in Fig. 5C, the third moving mechanism 180 moves the spindle 110 downward in the vertical direction Z as the third direction to approach the tool holder 132, and the tool 20 attached to the spindle 110 is positioned on the front side of the tool holder 132. The positions of the tool 20 attached to the spindle 110 and the tool holder 132 in the front-rear direction Y are determined in the step of Fig. 5B. Next, in Fig. 5D, the first moving mechanism 140 moves the workpiece support part 120 forward in the front-rear direction Y as the first direction, and the tool 20 attached to the spindle 110 is inserted from the front side of the tool holder 132 into an opening on the front side of the grip 132a provided on the tool holder 132, whereby the tool 20 is supported by the tool holder 132 by being gripped by the grip 132a. Next, in Fig. 5E, the spindle 110 is released from the attached tool 20, and the third moving mechanism 180 moves the spindle 110 upward in the vertical direction Z as the third direction to separate it from the tool holder 132, whereby the released tool 20 is removed from the spindle 110 and left in the tool holder 132. Next, in Fig. 5F, the second moving mechanism 170 moves the spindle 110 to the position of the next tool 20 in the left-right direction X as the second direction to position the spindle 110 directly above the next tool 20. Next, in Fig. 5G, the third moving mechanism 180 moves the spindle 110 downward in the vertical direction Z as the third direction to approach the tool holder 132, and the spindle 110 is coupled to the next tool 20.

[0048] Next, in FIG. 5H, the first moving mechanism 140 moves the workpiece support portion 120 backward in the front-rear direction Y as the first direction, and the tool 20 attached to the spindle 110 is moved away from the front opening of the grip 132a provided on the tool holder 132, whereby the tool 20 is released from the support of the tool holder 132 and removed from the tool holder 132. Next, in FIG. 5I, the third moving mechanism 180 moves the spindle 110 upward in the up-down direction Z as the third direction, so that the spindle 110 moves away from the tool magazine 130. Finally, in FIG. 5J, the machine tool 100 finishes the tool changing process, and the first moving mechanism 140 moves the workpiece support portion 120 backward in the front-rear direction Y as the first direction, and the workpiece support portion 120 is moved toward the machining position and positioned directly below the spindle 110 to facilitate the machining process. When the workpiece support part 120 is located at the processing position (i.e., when the workpiece support part 120 is located at a position corresponding to the spindle 110), the tool magazine 130 overlaps at least a part of the spindle support part 150 in the second direction (left-right direction X). At the same time, during the process of movement of the tool magazine 130, the magazine cover 134 is displaced from an open state to a closed state to cover the tool 20 supported by the tool holder 132.

[0049] Furthermore, in this embodiment, as shown in FIG. 6, the machine tool 100 can also move the tool magazine 130 in a direction away from the machining area (for example, backward) in the machining process, so that the workpiece support unit 120 can secure a larger machining area in the first direction. In this case, since the movement range of the tool magazine 130 can pass between the spindle support unit 150 (or the spindle support unit 150A), even if the movement range of the tool magazine 130 is increased by providing the tool magazine 130 at a position away from the workpiece support unit 120, it is not necessary to increase the size of the machine tool 100 in the first direction. The operation flow shown in FIG. 5A to FIG. 5J and FIG. 6 can also be applied to the machine tool 100A, and will not be described here repeatedly. However, the above content is merely one example of the tool exchange process of the machine tool 100 of the present invention, and each step can be adjusted as necessary (for example, the specific structure and relative position of each member of the machine tool 100), and the present invention is not limited thereto.

[0050] In summary, in the machine tool of the present invention, the tool magazine is provided on the work support part, the tool magazine is moved in a first direction in synchronization with the work support part, and the movement range of the tool magazine is set so as to overlap at least a part of the spindle support part when viewed from the side. This makes it possible to ensure the movement range of the tool magazine in the machine tool of the present invention, and to reduce the size of the machine tool and make the structure more compact.

[0051] Finally, the above embodiments are only used to describe the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can be modified or some or all of the technical features can be replaced with equivalents. Moreover, such modifications or replacements do not cause the essence of the corresponding technical solutions to depart from the scope of the technical solutions of the various embodiments of the present invention. [Explanation of symbols]

[0052] 20: Tools 100, 100A: Machine tool 110: Main shaft 120: Work support part 122: Table 124: Rotation mechanism 126: Foundation 130: Tool magazine 132: Tool holder 132a:Grip 134: Magazine cover 134A: First cover 134B: 2nd cover 136: Support member 140: 1st movement mechanism 142: First guide section 150, 150A: Spindle support part 152A, 152B: Post 154: Part 1 156: Part 2 160: Opening and closing mechanism 162: Cam 164: Link member 170:Second movement mechanism 172: Second guide section 180:Third movement mechanism 182: Third guide section 190: Base section A: Rotation axis X: Left / right direction Y: Front-rear direction Z: Vertical direction

Claims

1. a spindle used to attach a tool; a workpiece support portion for supporting a workpiece to be machined by the tool attached to the spindle; a tool magazine provided on the work support portion and holding a plurality of tools; A first moving mechanism that moves the work support part in a first direction; A spindle support portion that supports the spindle, The tool magazine is movable in a second direction perpendicular to the first direction to a position where the tool magazine overlaps with at least a portion of the spindle support portion. A machine tool characterized by:

2. The spindle support portion has two pillars spaced apart in the second direction, The tool magazine can pass between the two posts.

2. The machine tool according to claim 1 .

3. The spindle support portion is A first portion provided in the second direction with respect to the tool magazine; a second portion disposed in the first direction relative to the tool magazine, The tool magazine is movable in the second direction to a position overlapping at least a portion of the first portion.

2. The machine tool according to claim 1 .

4. The tool magazine overlaps at least a portion of the spindle support in the second direction when the workpiece support is located at a processing position.

2. The machine tool according to claim 1 .

5. When the workpiece support portion is located at a tool changing position, the tool magazine does not overlap with the spindle support portion in the second direction.

2. The machine tool according to claim 1 .

6. The tool magazine includes a tool holder for supporting the tools, and an openable and closable magazine cover for covering the tool holder.

2. The machine tool according to claim 1 .

7. the first direction is a front-to-rear direction, The tool magazine is disposed behind the workpiece support.

2. The machine tool according to claim 1 .

8. The work support portion is A table for fixing the workpiece; a rotation mechanism for rotating the table around a horizontal axis; 2. The machine tool according to claim 1 .

9. The main shaft is movable in the second direction.

2. The machine tool according to claim 1 .

10. a second moving mechanism that moves the spindle in the second direction; the spindle support portion further supports the second movement mechanism, When the workpiece support portion is located at a processing position, the tool magazine overlaps with at least a portion of the second moving mechanism in a third direction perpendicular to the first direction and the second direction.

10. The machine tool according to claim 9.

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