Machine tool

Abstract

The invention provides a machine tool in which the opening and closing operation of a magazine cover and the movement of a tool magazine driven by a workpiece supporting part are linked with each other, but the movement speed of the tool magazine does not need to be excessively reduced, so that the tool changing efficiency in the machine tool is good. The machine tool includes: a spindle for mounting a tool; a workpiece support part for supporting a workpiece to be machined by the cutter mounted on the main shaft; the tool magazine is arranged on the workpiece supporting part and is provided with a tool handle for supporting a plurality of tools and a magazine cover which covers the periphery of the tool handle and can be opened and closed; a moving mechanism that moves the workpiece support part in a first direction; and an opening / closing mechanism for opening or closing the cover. The opening and closing mechanism comprises a first cam and a second cam, and a link member that is connected to the cover and moves the workpiece support portion by the moving mechanism to abut against the first cam, thereby displacing the cover from a closed state to an open state.

Description

Technical Field

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

[0002] In the prior art, a machine tool that processes a workpiece using a tool is provided with a tool magazine for storing a plurality of tools, and the required tools are exchanged according to the processing conditions, so as to perform processing efficiently. In addition, a magazine cover may be provided on the tool magazine of such a machine tool to protect the tools stored in the tool magazine from the influence of the processing fluid supplied during processing and the chips generated (for example, affecting the replacement of the tool or reducing the processing accuracy, etc.).

[0003] As an example, in Patent Document 1, a tool magazine and a magazine cover for covering the tool magazine are provided on a workbench holding a workpiece, and the magazine cover is closed during the machining process to prevent machining fluid and chips from entering the tool magazine, and the magazine cover is opened during the tool changing process. In the technology disclosed in Patent Document 1, the opening and closing operation of the magazine cover is linked to the movement of the tool magazine in the front-to-back direction driven by the workbench. Specifically, a first engaging member provided on the magazine cover and a second engaging member provided on a column supporting the spindle engage with each other during the movement of the tool magazine driven by the workbench, thereby switching the opening and closing state of the magazine cover.

[0004] However, in Patent Document 1, if the moving speed of the tool magazine driven by the worktable is not suppressed when the magazine cover is opened and closed, problems such as the magazine cover bouncing or the engagement parts being damaged may occur. Thus, the tool changing efficiency of such a machine tool is low.

[0005] [Prior art literature]

[0006] [Patent Document]

[0007] [Patent Document 1] Japanese Patent Application Publication No. 2015-123575 Summary of the invention

[0008] The present invention provides a machine tool that solves the above-mentioned problems, which links the opening and closing operation of the magazine cover with the movement of the tool magazine driven by the workpiece support part, but does not need to excessively reduce the movement speed of the tool magazine, so that the tool changing efficiency in the machine tool is good.

[0009] The embodiment of the technical solution 1 of the present invention provides a machine tool, which includes: a spindle for mounting a tool; a workpiece support part for supporting a workpiece processed by the tool mounted on the spindle; a tool magazine, which is arranged on the workpiece support part and has a tool holder for supporting a plurality of tools, and a magazine cover that covers the periphery of the tool holder and can be opened and closed; a moving mechanism that moves the workpiece support part in a first direction; and an opening and closing mechanism that opens or closes the magazine cover. The opening and closing mechanism includes: a first cam; and a connecting rod part that connects the magazine cover and moves the workpiece support part through the moving mechanism to abut against the first cam, thereby shifting the magazine cover from a closed state to an open state.

[0010] According to the above embodiment, the opening and closing operation of the magazine cover is linked to the movement of the tool magazine driven by the workpiece support part. During the movement of the tool magazine, the connecting rod component connected to the magazine cover abuts against the first cam, so that the magazine cover is moved from the closed state to the open state through the guidance of the connecting rod component by the first cam. In this way, the movement speed and movement range of the tool magazine can be designed according to the shape and position of the first cam, so that there is no need to excessively reduce the movement speed of the tool magazine. Accordingly, the tool change efficiency of the machine tool in the above embodiment can be improved.

[0011] In the machine tool according to the embodiment of technical solution 2 of the present invention, the position of the first cam in the first direction overlaps with the moving range of the workpiece support portion.

[0012] According to the above embodiment, the position of the first cam can be set according to the moving range of the tool magazine.

[0013] In the machine tool according to the embodiment of technical solution 3 of the present invention, it further includes: a base supporting the workpiece supporting part. The first cam is located on the base.

[0014] According to the above embodiment, the position of the first cam can be set according to the moving range of the tool magazine.

[0015] In the machine tool according to the embodiment of technical solution 4 of the present invention, the first direction is the front-rear direction, and the tool magazine is arranged behind the workpiece supporting part.

[0016] According to the above-mentioned embodiment, the moving range of the tool magazine can be designed according to the position of the tool magazine.

[0017] In the machine tool according to the embodiment of technical solution 5 of the present invention, the storage cover includes a first cover, and the connecting rod component includes: a rotating connecting rod having a first abutting portion abutting against the first cam, and rotating through the abutment between the first cam and the first abutting portion; and a connecting rod arm connecting the rotating connecting rod and the first cover, and the first cover is shifted to an open state through the rotation of the rotating connecting rod.

[0018] According to the above embodiment, the moving range of the first cover of the storage cover can be designed according to the linkage between the rotating link and the link arm and the relative position between the first cam and the first contact portion.

[0019] In the machine tool according to the embodiment of technical solution 6 of the present invention, the upper end portion of the first cover has an inclined surface that is oriented toward a direction approaching the workpiece supporting portion and is inclined downward.

[0020] According to the above-mentioned embodiment, it is possible to prevent chips from being easily accumulated on the first cover of the magazine cover.

[0021] In the machine tool according to the embodiment of technical solution 7 of the present invention, the magazine cover further includes a second cover opposite to the first cover. The opening and closing mechanism further includes: a second cam located on the first cover; and a second abutting portion abutting against the second cam and located on the second cover. When the first cover is displaced to the open state by the link arm, the second cam moves in a state abutting against the second abutting portion, thereby the second cover is displaced to the open state.

[0022] According to the above embodiment, the moving range of the second cover of the storage cover can be designed according to the shape and position of the second cam and the relative position between the second cam and the second contact portion.

[0023] In the machine tool according to the embodiment of technical solution 8 of the present invention, the opening and closing mechanism also includes: a first force-applying component, connected to the connecting rod component, to apply force in a manner that puts the first cover into a closed state; and a second force-applying component, connected to the second cover, to apply force in a manner that puts the second cover into a closed state.

[0024] According to the above-described embodiment, the first and second covers of the storage cover can be easily brought into the closed state by the first and second urging members.

[0025] In the machine tool according to the embodiment of Technical Solution 9 of the present invention, in the closed state of the magazine cover, the upper end of the first cover is located above the second cover.

[0026] According to the above embodiments, the storage cover can have a good protective effect.

[0027] In the machine tool according to the embodiment of technical solution 10 of the present invention, the upper end portion of the second cover has an inclined surface that is inclined downward in a direction away from the first cover.

[0028] According to the above-mentioned embodiment, it is possible to prevent chips from being easily accumulated on the second cover of the magazine cover.

[0029] In the machine tool according to the embodiment of technical solution 11 of the present invention, the first direction is the front-to-back direction, the first cover covers at least the front and the side relative to the tool handle, and the second cover covers at least the top and the back relative to the tool handle.

[0030] According to the above embodiment, the first cover and the second cover of the magazine cover can cover the tool holder provided in the tool magazine from the front and rear direction, the side, and the top to shield the chips.

[0031] In the machine tool according to the embodiment of claim 12 of the present invention, the first cover has a covering portion that covers an upper portion of the second cam.

[0032] According to the above embodiment, the first cover of the magazine cover can cover the second cam from above to shield the chips.

[0033] In the machine tool according to the embodiment of technical solution 13 of the present invention, the tool magazine further includes a support component for supporting the tool handle. The opening and closing mechanism further includes: a guide cam located on the support component and guiding the movement of the link arm; and a third abutment portion located on the link arm and abutting against the guide cam.

[0034] According to the above embodiment, the moving range of the first cover of the storage cover can be designed according to the shape and position of the guide cam and the relative position of the guide cam and the third contact portion.

[0035] In the machine tool according to the embodiment of technical solution 14 of the present invention, when the first cover is shifted from the closed state to the open state, the angle of the first cover is maintained and the first cover is moved downward along the guide cam at the same time.

[0036] According to the above-described embodiment, the moving range of the first cover can be shortened, thereby miniaturizing the structure.

[0037] In the machine tool according to the embodiment of Technical Solution 15 of the present invention, the first abutting portion, the second abutting portion, and the third abutting portion are rollers.

[0038] According to the above-described embodiment, the first contact portion, the second contact portion, and the third contact portion can be smoothly contacted with the cam surfaces.

[0039] In the machine tool according to the embodiment of technical solution 16 of the present invention, each cam surface of the first cam, the second cam and the guide cam is a surface facing a direction away from the workpiece support part.

[0040] According to the above-described embodiment, it is possible to prevent chips from being easily accumulated on the cam surfaces of the first cam, the second cam, and the guide cam.

[0041] In the machine tool according to the embodiment of Technical Solution 17 of the present invention, the rotating link rotates relative to the supporting component around the first axis, and the second cover rotates relative to the supporting component around the second axis.

[0042] According to the above embodiment, the moving directions of the first cover and the second cover of the storage cover can be designed according to the positions of the rotating link connected to the first cover and the second cover.

[0043] In the machine tool according to the embodiment of Technical Solution 18 of the present invention, the workpiece support portion includes: a worktable for fixing the workpiece; and a rotating mechanism for rotating the worktable with the horizontal direction as the rotation axis.

[0044] According to the above-mentioned embodiment, the workpiece support portion can be provided with the operation functions of linear movement and rotation along the horizontal axis.

[0045] In the machine tool according to the embodiment of Technical Solution 19 of the present invention, the spindle is movable in a second direction orthogonal to the first direction.

[0046] According to the above-described embodiment, the main shaft can be provided with a linear movement operation function.

[0047] In the machine tool according to the embodiment of technical solution 20 of the present invention, it also includes: two pillars, supporting the main shaft and arranged at intervals in a second direction orthogonal to the first direction, and the tool magazine can pass between the two pillars.

[0048] According to the above embodiment, the moving range of the tool magazine can pass through the main structure of the machine tool, so that the size of the machine tool in the first direction can be shortened.

[0049] Based on the above, in the machine tool of the present invention, the opening and closing operation of the magazine cover is linked with the movement of the tool magazine driven by the workpiece support part, and the movement speed and movement range of the tool magazine can be designed according to the shape and position of the first cam, so that there is no need to excessively reduce the movement speed of the tool magazine. Accordingly, the tool changing efficiency of the machine tool in the embodiment of the present invention can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a three-dimensional schematic diagram of a machine tool provided according to an embodiment of the present invention in a first operating state.

[0051] Figure 2 yes Figure 1 The machine tool shown is a three-dimensional schematic diagram in the second operating state.

[0052] Figure 3 yes Figure 2 The tool magazine of the machine tool shown is a three-dimensional schematic diagram with the magazine cover in the open state.

[0053] FIG. 4A to FIG. 4C yes Figure 1 The side view of the tool magazine of the machine tool shown in the figure is a schematic diagram of the tool magazine cover being changed from a closed state to an open state, wherein Figure 4A The cover of the library is closed. Figure 4B The library cover in the transition state, and Figure 4C The cover of the storage compartment is open.

[0054] FIG. 5A to FIG. 5J yes Figure 1 The machine tool shown is a schematic diagram of the operation of removing the tool on the spindle and installing the tool in the tool magazine to the spindle during the tool change process, wherein Figure 5E The tool in the spindle is removed from the spindle. Figure 5G The spindle in the Figure 5J The spindle in has had a tool changed.

[0055] Figure 6 yes Figure 1 The machine tool shown is a schematic diagram of the operation of moving the tool magazine further away from the processing area during the processing operation.

[0056] Description of Reference Numerals

[0057] 20: Knives

[0058] 100: Machine tools

[0059] 110: Spindle

[0060] 120: Workpiece support

[0061] 122: Workbench

[0062] 124: Rotating mechanism

[0063] 126: Base

[0064] 130: Tool magazine

[0065] 132: Handle

[0066] 132a: Clamp

[0067] 134: Kugai

[0068] 134A: First cover

[0069] 134B: Second cover

[0070] 134C: Bending part

[0071] 134D: Covering

[0072] 136: Supporting parts

[0073] 140: Mobile mechanism

[0074] 142: Mobile guide unit

[0075] 150: Opening and closing mechanism

[0076] 151: First Cam

[0077] 152: Connecting rod parts

[0078] 152A: Rotating connecting rod

[0079] 152B: Link arm

[0080] 152C: First contact portion

[0081] 152D: Connector

[0082] 153: Second Cam

[0083] 154: Second contact portion

[0084] 155: Guide Cam

[0085] 156: Third contact portion

[0086] 157: First force-applying component

[0087] 158: Second force applying member

[0088] 160: First drive mechanism

[0089] 162: First drive guide

[0090] 170: Second drive mechanism

[0091] 172: Second drive guide

[0092] 180: Base

[0093] 190: Pillar

[0094] A: Rotation axis

[0095] A1: First axis

[0096] A2: Second axis

[0097] E1, E3: First end

[0098] E2, E4: Second end

[0099] X: Left and right direction

[0100] Y: front and back direction

[0101] Z: Up and down direction DETAILED DESCRIPTION

[0102] Examples of exemplary embodiments of the present invention are now illustrated in the accompanying drawings. Whenever possible, the same reference numerals are used in the drawings and description to refer to the same or similar parts. Figures 1 to 6 The specific structure of the machine tool 100 and its operation process of this embodiment are described, but this is only one example of the present invention. The specific structure of the machine tool 100 and its operation process can be adjusted according to needs, and the present invention is not limited thereto.

[0103] Please refer to Figures 1 to 3 In this embodiment, the machine tool 100 includes a spindle 110, a workpiece support 120, a tool magazine 130, a moving mechanism 140, and an opening and closing mechanism 150. The spindle 110 is used to mount a tool 20. The workpiece support 120 is used to support a workpiece (not shown) to be machined by the tool 20 mounted on the spindle 110. The tool magazine 130 is disposed on the workpiece support 120 and has a plurality of tools 20 (in Figure 2 and Figure 3 The tool holder 132 includes a tool holder 132 (six tools are shown in the figure, but this is not limiting), and a magazine cover 134 that covers the tool holder 132 and can be opened and closed. The moving mechanism 140 moves the workpiece support 120 in a first direction (for example, the front-to-back direction Y). The opening and closing mechanism 150 opens or closes the magazine cover 134. The opening and closing mechanism 150 includes a first cam 151 and a connecting rod component 152. The connecting rod component 152 is connected to the magazine cover 134, and moves the workpiece support 120 through the moving mechanism 140, and abuts against the first cam 151, thereby opening the magazine cover 134 from a closed state (corresponding to Figure 1 The first operating state) is shifted to the open state (corresponding to Figure 2 The following describes each component in detail.

[0104] Specifically, in this embodiment, Figure 1 and Figure 2As shown, the workpiece support 120 is connected to the moving mechanism 140. The moving mechanism 140, for example, includes a moving guide 142 (for example, a combination of a linear guide and a ball screw) extending in a first direction (front-rear direction Y), and a driving unit (for example, a motor (not shown)) for moving the workpiece support 120 along the moving guide 142, so that the workpiece support 120 moves in the first direction (front-rear direction Y). In this way, the workpiece support 120 can move in a processing area (for example, directly below the spindle 110) according to the processing conditions required for the supported workpiece. Although the movement of the workpiece support 120 in the front-rear direction Y is used as an example of the first direction, for example, the workpiece support 120 can also be configured to move in other directions, and the workpiece support 120 can also be configured to move in multiple directions through other moving mechanisms not shown. Furthermore, although the moving guide 142 and the driving unit are used as examples of the moving mechanism 140, the present invention does not limit the composition of the moving mechanism 140, which can be adjusted according to needs.

[0105] Furthermore, in this embodiment, if Figure 1 and Figure 2 As shown, the workpiece support 120 includes, for example, a worktable 122 and a rotating mechanism 124. The worktable 122 is used to fix the workpiece, and the rotating mechanism 124 allows the worktable 122 to rotate with a horizontal direction (for example, a left-right direction X) as a rotation axis A. Among them, the rotating mechanism 124 is, for example, arranged on the moving mechanism 140 through a base 126, and the worktable 122 is arranged on the rotating mechanism 124. The entire workpiece support 120 can be moved by the moving mechanism 140, and the worktable 122 of the workpiece support 120 can also be rotated by the rotating mechanism 124. In this way, the workpiece support 120 can have the operating functions of linear movement and rotation along the horizontal axis, thereby having a more diverse processing method. Although the worktable 122 is rotated with the left-right direction X as the rotation axis A as an example of the horizontal direction, the worktable 122 can also rotate with other horizontal directions or vertical directions as the rotation axis. In addition, although the worktable 122 and the rotating mechanism 124 are used as examples of the workpiece support 120, only the worktable 122 can be provided. The present invention does not limit the composition of the workpiece support portion 120 , which can be adjusted according to needs.

[0106] Furthermore, in this embodiment, if Figure 1 and Figure 2 As shown, the tool magazine 130 accommodates a plurality of tools 20. The tool magazine 130 includes a tool holder 132 for supporting the plurality of tools 20, and a magazine cover 134 that covers the periphery of the tool holder 132 and can be opened and closed. Figure 3As shown, the tool handle 132 is provided with a plurality of clamps 132a capable of clamping the tool 20, and the opening of the clamp 132a is open toward the front side of the front-back direction X, so that the tool 20 can be supported on the tool handle 132 by the clamping of these clamps 132a. Among them, the tool handle 132 of the tool magazine 130 supports the plurality of tools 20 to be arranged in a single row in the left-right direction X. In this way, the required tool 20 can be selected for tool change (as described later) by the relative movement of the spindle 110 for mounting the tool 20 and the tool magazine 130 for accommodating the tool 20 in the left-right direction X. Although six clamps 132a are provided on the tool handle 132 to support six tools 20 as an example, the number of tools 20 and the clamps 132a can be adjusted according to demand. In addition, the means for supporting the tool 20 of the tool handle 132 is not limited to the clamp 132a, but can also be other supporting components capable of supporting the tool 20. Furthermore, although the tool holder 132 is used as an example to support multiple tools 20 so as to be arranged in a single row in the left-right direction X, the tool holder 132 can also support multiple tools 20 so as to be arranged in a single row in other directions, or support multiple tools 20 so as to be arranged in a matrix. The present invention does not limit the implementation method of the tool magazine 130 using the tool holder 132 to support the tools 20, which can be adjusted according to needs. In addition, the magazine cover 134 is closed during the processing process of the machine tool 100 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 the tool changing process of the machine tool 100, so that the tool 20 installed on the spindle 110 can be replaced with other tools 20 supported by the tool holder 132. The specific structure of the magazine cover 134 and the implementation method of its opening and closing operation will be described later.

[0107] In addition, in this embodiment, Figure 1 and Figure 2 As shown, the tool magazine 130 is arranged on the workpiece support part 120 and can move synchronously with the workpiece support part 120. As an example, in addition to the tool handle 132 and the magazine cover 134, the tool magazine 130 also includes a support component 136 that supports the tool handle 132, and the tool handle 132 and the magazine cover 134 are arranged on the workpiece support part 120 (for example, arranged on the aforementioned base 126) through the support component 136. In the process that the 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 working process of the machine tool 100. Although the support component 136 is used as an example of setting the tool magazine 130 on the workpiece support part 120, other components can also be used to set the tool magazine 130 on the workpiece support part 120, or the tool handle 132 of the tool magazine 130 can be directly set on the workpiece support part 120. The present invention does not limit the implementation method in which the tool magazine 130 and the workpiece support 120 move synchronously in the first direction, which can be adjusted according to needs.

[0108] Furthermore, in this embodiment, the tool magazine 130 and the workpiece support 120 are arranged in a first direction, so that the positions of the workpiece support 120 and the tool magazine 130 in the first direction can be adjusted according to the working process of the machine tool 100. In the case where the first direction is the front-to-back direction Y, the tool magazine 130 is, for example, arranged behind the workpiece support 120. When the machine tool 100 performs a processing process, the workpiece support 120 is moved to a position corresponding to the spindle 110 (such as Figure 1 As shown in FIG. 1 ). Thus, the workpiece supported on the workpiece support 120 can be processed. When the machine tool 100 performs a tool change process, the workpiece support 120 is moved to a position further forward than the position of the processing process by the moving mechanism 140, and the tool magazine 130 is moved to a position corresponding to the spindle 110 (as shown in FIG. 1 ). Figure 2 As shown). Thus, it is possible to change tools with the tool 20 accommodated in the tool magazine 130. Therefore, the workpiece support 120 and the tool magazine 130 can be arranged at positions adjacent to each other, so that the above-mentioned moving range in the first direction is shortened, and the size of the machine tool 100 in the first direction is also shortened. In this way, the moving range of the tool magazine 130 can be designed according to the position of the tool magazine 130, so that the machine tool 100 can improve the tool change efficiency and miniaturize the structure. Although the workpiece support 120 and the tool magazine 130 are arranged adjacent to each other in the first direction and the tool magazine 130 is arranged behind the workpiece support 120 as an example, the relative position of the workpiece support 120 and the tool magazine 130 can be adjusted according to needs. For example, the tool magazine 130 can also be arranged on one of the left or right sides of the workpiece support 120.

[0109] Furthermore, in this embodiment, if Figure 1 and Figure 2As shown, the spindle 110 for mounting the tool 20 is arranged on a side away from the workpiece support 120 and the tool magazine 130 in the vertical direction Z. For example, the spindle 110 is arranged at a position higher than the workpiece support 120 and the tool magazine 130 in the vertical direction Z. In addition, the spindle 110 is movable in a second direction (for example, the vertical direction Z) orthogonal to the first direction (the front-rear direction Y). As an example, the machine tool 100 also includes a first drive mechanism 160. The first drive mechanism 160 includes a first drive guide 162 (for example, a combination of a linear guide and a ball screw) extending in the vertical direction Z, and a drive unit (for example, a motor (not shown)) for moving the spindle 110 along the first drive guide 162, so that the spindle 110 is movable in the vertical direction Z. It can be seen from this that the spindle 110 can move downward and approach the workpiece support 120 during the processing process, and the workpiece supported on the workpiece support 120 is processed using the installed tool 20. Furthermore, the spindle 110 can move downward and approach the tool magazine 130 during the tool changing process, and change tools with the tool 20 accommodated in the tool magazine 130. The positions of the workpiece support 120 and the tool magazine 130 in the first direction (front-rear direction Y) are adjusted by the movement of the moving mechanism 140 (as described above), so that the spindle 110 can perform processing or change tools according to the working process of the machine tool 100. In this way, the spindle 110 can have a linear movement operation function. Although the first drive guide 162 and the drive part are used as examples of the first drive mechanism 160, the present invention does not limit the composition of the first drive mechanism 160. Furthermore, although the movement of the spindle 110 in the up-down direction Z is used as an example of the second direction, the present invention does not limit the movement direction of the spindle 110.

[0110] For example, in this embodiment, if Figure 1 and Figure 2, the spindle 110 for mounting the tool 20 is, for example, movable in a second direction (for example, left-right direction X) orthogonal to the first direction (front-back direction Y). As an example, the machine tool 100, for example, further includes a second drive mechanism 170. The second drive mechanism 170 includes a second drive guide 172 (for example, a combination of a linear guide and a ball screw) extending in the left-right direction X, and a drive unit (for example, a motor (not shown)) for moving the spindle 110 along the second drive guide 172, so that the spindle 110 is movable in the left-right direction X. It can be seen that when the machine tool 100 performs a tool changing process, the spindle 110 moves in the left-right direction X, and one of the multiple tools 20 arranged in a single row along the left-right direction X on the tool holder 132 can be selected for tool changing. In this way, the spindle 110 can have a linear movement operation function. Although the second drive guide 172 and the drive unit are used as examples of the second drive mechanism 170, the present invention does not limit the composition of the second drive mechanism 170. Furthermore, although the spindle 110 is shown as moving in the left-right direction X as an example of the second direction, the present invention does not limit the moving direction of the spindle 110. In particular, although the spindle 110 is shown as being movable in both the up-down direction Z and the left-right direction X as an example, the spindle 110 may be movable in only one of the linear directions. In addition, although the spindle 110 is shown as being movable as an example, it may be set to be immovable, and in this case, the machining process and the tool changing process are implemented by the movable workpiece support 120 and the movable tool magazine 130. The present invention is not limited to the above-mentioned embodiments.

[0111] In addition, in this embodiment, Figure 1 and Figure 2As shown, the machine tool 100 further includes a base 180. The base 180 serves as the base of the machine tool 100 to support the workpiece support 120. For example, the base 180 supports the workpiece support 120 through the moving mechanism 140. In addition, the spindle 110, the tool magazine 130 and other components are preferably supported by the base 180. In this way, the above components of the machine tool 100 are installed on the base 180 as a whole in the housing of the machine tool 100 not shown. Furthermore, the machine tool 100 is automatically controlled by a control system not shown, thereby constituting a device that can be used for automated processing. As an example, the machine tool 100 is, for example, a numerical control (NC) device or a computer numerical control (CNC) device, so that the aforementioned processing steps and tool changing steps can be performed in an automated manner. Although the base 180 is used as the base of the machine tool 100 to support the aforementioned components (such as the workpiece support 120) as an example, the use of the base 180 can also be omitted. Furthermore, although the machine tool 100 is an automated device having a housing and a control system as an example, the implementation mode in which the machine tool 100 is operated by a user is not excluded. The present invention does not limit the specific structure of the machine tool 100 and the implementation mode for performing the above-mentioned machining process and tool changing process, which can also be adjusted according to the needs.

[0112] Furthermore, in this embodiment, if Figures 1 to 3 As shown, the opening and closing mechanism 150 opens or closes the magazine cover 134 during the movement of the tool magazine 130. The opening and closing mechanism 150 includes a first cam 151 and a connecting rod component 152. As an example, the first cam 151 is located on the base 180 of the machine tool 100, for example, in pairs on opposite sides of the base 180 in the left-right direction X (in Figure 1 Only one side is shown in the figure). The first cam 151 is, for example, a flat plate-shaped structure having a cam surface. Furthermore, the first cam 151 may be a separate component mounted on the base 180, or may be a structure integrally formed on the base 180. Furthermore, the connecting rod component 152 is connected to the magazine cover 134, for example, it is connected in pairs to the opposite sides of the magazine cover 134 in the left-right direction X. Thus, the machine tool 100 can link the opening and closing operation of the magazine cover 134 with the movement of the tool magazine 130 driven by the workpiece support 120. For example, the first cam 151 and the connecting rod component 152 of the opening and closing mechanism 150 are respectively arranged at a fixed position (for example, the base 180) and a movable position (for example, the magazine cover 134) connected to the magazine cover 134. The workpiece support 120 is moved by the moving mechanism 140, so that the tool magazine 130 also moves with the workpiece support 120, so that the connecting rod component 152 connected to the magazine cover 134 and the first cam 151 located on the base 180 also move relatively. When the link member 152 abuts against the first cam 151, the storage cover 134 can be moved from the closed state (corresponding to the Figure 1 The first operating state) is shifted to the open state (corresponding to Figure 2 In this way, the position of the first cam 151 can be set according to the moving range of the tool magazine 130. Although the first cams 151 are positioned on the left and right sides of the base 180 in pairs as an example, and the connecting rod parts 152 are connected to the left and right sides of the magazine cover 134 in pairs as an example, the number and position of the first cams 151, and the number and position of the connecting rod parts 152 can be adjusted according to needs. As long as the first cam 151 is set to be stationary and the connecting rod part 152 is set to be movable with the workpiece support part 120 and the tool magazine 130, the magazine cover 134 can be opened and closed by the relative movement of the first cam 151 and the connecting rod part 152.

[0113] Furthermore, in this embodiment, the machining process and the tool changing process of the machine tool 100 can be switched according to the movement of the workpiece support 120 and the tool magazine 130 in the first direction (front-rear direction Y). FIG. 4A to FIG. 4C The first cam 151 and the link member 152 are arranged in a first direction (front-rear direction Y), for example. During the movement of the tool magazine 130, the link member 152 connected to the magazine cover 134 abuts against the first cam 151 as the tool magazine 130 moves in the first direction (front-rear direction Y), so that the magazine cover 134 is guided by the first cam 151 to move from Figure 4A The closed state is shifted to Figure 4C Accordingly, the link member 152 connected to the magazine cover 134 moves away from the first cam 151 as the tool magazine 130 moves in the first direction (front-rear direction Y), thereby causing the magazine cover 134 to move away from the first cam 151. Figure 4C The open state is shifted to Figure 4A Preferably, the position of the first cam 151 in the first direction (front-rear direction Y) overlaps with the moving range of the workpiece support 120. Figure 1From the left-right direction X, the first cam 151 overlaps with the area where the moving guide 142 of the moving mechanism 140 is located. Therefore, the connecting rod member 152 can abut against the first cam 151 during the movement of the tool magazine 130 driven by the workpiece support 120. In this way, the position of the first cam 151 can be set according to the moving range of the tool magazine 130. In addition, the moving speed and moving range of the tool magazine 130 can be designed according to the shape and position of the first cam 151, so that there is no need to excessively reduce the moving speed of the tool magazine 130. In particular, the state in which the connecting rod member 152 abuts against the first cam 151 corresponds to the opening operation of the magazine cover 134, and the opening method of the magazine cover 134 (the position and direction of the opening state of the magazine cover 134) can be designed according to the shape and position of the first cam 151. Accordingly, the tool changing efficiency of the machine tool 100 can be improved. The opening and closing operation of the magazine cover 134 of the tool magazine 130 will be described in more detail below.

[0114] Specifically, in this embodiment, Figure 3 , FIG. 4A to FIG. 4C As shown, the magazine cover 134 includes a first cover 134A. The connecting rod component 152 includes a rotating connecting rod 152A and a connecting rod arm 152B. The rotating connecting rod 152A has a first abutting portion 152C abutting against the first cam 151, and rotates by the abutment between the first cam 151 and the first abutting portion 152C. The connecting rod arm 152B connects the rotating connecting rod 152A and the first cover 134A, and the first cover 134A is shifted to an open state by the rotation of the rotating connecting rod 152A. As an example, the first end E1 of the rotating connecting rod 152A is connected to the supporting component 136 of the tool magazine 130 through a connecting piece 152D, and the second end E2 of the rotating connecting rod 152A rotates relative to the first end E1 with the first axis A1 (for example, corresponding to the left and right direction X) as the center. Furthermore, the first end E3 of the link arm 152B is connected to the second end E2 of the rotating link 152A and can move in accordance with the rotation of the rotating link 152A. In addition, the second end E4 of the link arm 152B is connected to the first cover 134A. Thus, the first cover 134A can be opened or closed by the first cam 151 and the link member 152.

[0115] Furthermore, in this embodiment, the first contact portion 152C is, for example, a structure having an arc surface, and can contact the first cam 151 with the arc surface as the first contact surface, and move along the cam surface of the first cam 151. As an example, the first contact portion 152C is a roller. For example, the first contact portions 152C are in pairs and are respectively located on the inner side surfaces of a pair of rotating links 152A, and are located on opposite sides in the left-right direction X in a manner facing each other (at Figure 3Only one side is shown in the figure). The first abutment portion 152C may be a separate component mounted on the rotating link 152A, or may be a structure integrally formed on the rotating link 152A. In this way, the first abutment portion 152C can smoothly abut the first cam 151. Accordingly, the cam surface of the first cam 151 is a surface facing in a direction away from the workpiece support portion 120, for example, toward the rear side and the lower side. Moreover, the cam surface of the first cam 151 is a curved surface extending from the rear to the front and bending from the top to the bottom. In this way, the cam surface of the first cam 151 is not easy to accumulate chips, and the first abutment portion 152C can move smoothly along the cam surface of the first cam 151. Although the first abutment portions 152C are arranged in pairs on the rotating link 152A as an example here, the number and position of the first abutment portions 152C can be adjusted according to needs. As long as the first contact portion 152C as a part of the link member 152 can contact the first cam 151 , the first cover 134A of the storage cover 134 can be opened and closed by the movement of the link member 152 .

[0116] Furthermore, in this embodiment, if FIG. 4A to FIG. 4C As shown in FIG. 1 , during the movement of the link member 152 approaching the first cam 151, the first contact portion 152C contacts the cam surface of the first cam 151 and moves from the rear side of the first cam 151 to the front side and the lower side. Thus, the rotating link 152A provided with the first contact portion 152C rotates forward and downward around its first end E1, and the link arm 152B connected to the rotating link 152A also moves forward and downward. As a result, the first cover 134A driven by the link arm 152B moves forward and downward, and the first cover 134A moves forward and downward from the rear side. Figure 4A The closed state is shifted to Figure 4C Accordingly, during the movement of the link member 152 away from the first cam 151, the first contact portion 152C moves from the front side of the first cam 151 to the rear side and the upper side, thereby leaving the first cam 151. In this way, the rotating link 152A rotates toward the rear side and the upper side with its first end E1 as the center, and the link arm 152B connected to the rotating link 152A also moves toward the rear side and the upper side. As a result, the first cover 134A driven by the link arm 152B moves toward the rear side and the upper side, and the first cover 134A is moved from the front side to the rear side and the upper side. Figure 4C The open state is shifted to Figure 4AIn this way, the movement range of the first cover 134A of the library cover 134 can be designed according to the linkage between the rotating link 152A and the link arm 152B, and the relative position of the first cam 151 and the first abutment portion 152C, and the movement direction of the first cover 134A of the library cover 134 can be designed according to the shape (for example, having a cam surface facing the rear side and the lower side) and position (for example, the cam surface is located on the front side of the first abutment portion 152C) of the first cam 151, or the position of the rotating link 152A connected to the first cover 134A.

[0117] In addition, in this embodiment, Figure 3 , FIG. 4A to FIG. 4C As shown, the storage cover 134 also includes a second cover 134B opposite to the first cover 134A. The second cover 134B is installed on the support member 136, and rotates relative to the support member 136 around the second axis A2 (for example, corresponding to the left and right direction X). The opening and closing mechanism 150 also includes a second cam 153 and a second abutment portion 154. The rotation of the second cover 134B is linked to the movement of the first cover 134A through the second cam 153 and the second abutment portion 154. As an example, the second cam 153 is located on the first cover 134A, for example, in pairs on opposite sides of the first cover 134A in the left and right direction X (in Figure 3 Only one side is shown in the figure). The second cam 153 is, for example, a flat plate-shaped structure having a cam surface. Furthermore, the second cam 153 is connected to the link arm 152B, and the second cam 153 and the link arm 152B are formed integrally, so that the link arm 152B is also connected to the first cover 134A by installing the second cam 153 on the inner side of the first cover 134A. However, the second cam 153 may be a separate component installed on the first cover 134A, or may be a structure formed integrally on the first cover 134A. Furthermore, the link arm 152B may also be an individual component that can be connected to the second cam 153, or may be located at a different position of the first cover 134A from the second cam 153 and not connected to the second cam 153. Correspondingly, the second abutting portion 154 abuts against the second cam 153 and is located on the second cover 134B. Here, during the opening and closing operation of the storage cover 134, the second abutting portion 154 and the second cam 153 always remain in abutment. That is, the second contact portion 154 does not move away from the second cam 153. Thus, when the first cover 134A is shifted to the open state by the link arm 152B (as described above), the second cam 153 moves while abutting the second contact portion 154, thereby shifting the second cover 134B to the open state.

[0118] Furthermore, in this embodiment, the second contact portion 154 is, for example, a structure having an arc surface, and can contact the second cam 153 with the arc surface as the second contact surface, and move along the cam surface of the second cam 153. As an example, the second contact portion 154 is a roller. For example, the second contact portions 154 are in pairs and are respectively located on the inner side surfaces of the second cover 134B on the opposite sides in the left-right direction X (at Figure 3 Only one side is shown in the figure). The second abutment portion 154 may be a separate component mounted on the second cover 134B, or may be a structure integrally formed on the second cover 134B. In this way, the second abutment portion 154 can smoothly abut the second cam 153. Accordingly, the cam surface of the second cam 153 is a surface facing the direction away from the workpiece support portion 120, for example, toward the rear side and the lower side. Moreover, the cam surface of the second cam 153 is a curved surface extending from the rear to the front and bending from the top to the bottom. In this way, it is possible to prevent the cam surface of the second cam 153 from accumulating chips easily, and the second abutment portion 154 can smoothly move along the cam surface of the second cam 153. Although the second cams 153 are positioned in pairs on the left and right sides of the first cover 134A as an example, and the second abutment portion 154 is positioned in pairs in the left and right direction X of the second cover 134B as an example, the number and position of the second cams 153, and the number and position of the second abutment portions 154 can be adjusted according to needs. As long as the second cam 153 and the second contact portion 154 are respectively located on the first cover 134A and the second cover 134B and contact each other, the second cover 134B can be opened and closed by the movement of the first cover 134A.

[0119] Furthermore, in this embodiment, if FIG. 4A to FIG. 4C As shown in FIG. 1 , when the first cover 134A is shifted to the open state by the link arm 152B (as described above), the link arm 152B and the first cover 134A move forward and downward, so that the second cam 153 located in the first cover 134A moves forward and downward, and the second contact portion 154 contacting the second cam 153 moves backward and upward along the cam surface of the second cam 153 (toward the rear side and the downward side). As a result, the second cover 134B moves backward and upward along with the second contact portion 154. Figure 4A The closed state is shifted to Figure 4CCorrespondingly, when the first cover 134A is shifted to the closed state (as described above) by the link arm 152B, the link arm 152B and the first cover 134A move toward the rear side and toward the upper side, so that the second cam 153 located in the first cover 134A moves toward the rear side and toward the upper side, and the second contact portion 154 contacting the second cam 153 moves along the cam surface of the second cam 153 from the upper side to the front side and toward the lower side. As a result, the second cover 134B moves from the upper side to the front side and toward the lower side as the second contact portion 154 moves toward the front side and toward the lower side. Figure 4C The open state is shifted to Figure 4A Thus, the movement range of the second cover 134B of the storehouse cover 134 can be designed according to the shape (e.g., having a cam surface facing the rear side and the downward side) and position (e.g., the cam surface is located in front of the second abutment portion 154) of the second cam 153 and the relative position of the second cam 153 and the second abutment portion 154, and the movement direction of the second cover 134B of the storehouse cover 134 can be designed according to the position of the second cover 134B.

[0120] Furthermore, in this embodiment, if Figure 3 , FIG. 4A to FIG. 4C As shown, the opening and closing mechanism 150 further includes a guide cam 155 and a third abutment portion 156. As an example, the guide cam 155 is located on the support member 136 of the tool magazine 130, for example, in pairs on a pair of support members 136 and located on opposite sides in the left-right direction X (at Figure 3 Only one side is shown in the figure), and guides the movement of the link arm 152B. The guide cam 155 is, for example, a groove structure with a cam surface formed on the support member 136. The third abutment portion 156 is located on the link arm 152B, and abuts against the guide cam 155. Here, during the opening and closing operation of the library cover 134, the third abutment portion 156 and the guide cam 155 always remain in abutment. That is, the third abutment portion 156 will not move away from the guide cam 155 during the movement. In particular, the third abutment portion 156 can be installed on the guide groove serving as the guide cam 155, and abut against the cam surface (i.e., the surface close to the rear) of the guide cam 155. In this way, when the first cover 134A is shifted to the open state by the link arm 152B (as described above), the third abutment portion 156 moves in a state of abutting against the guide cam 155, thereby shifting the first cover 134A to the open state.

[0121] Furthermore, in the present embodiment, the third contact portion 156 is, for example, a structure having an arc surface, and can contact the guide cam 155 with the arc surface as the third contact surface, and move along the cam surface of the guide cam 155. As an example, the third contact portion 156 is a roller. For example, the third contact portion 156 is in pairs and is respectively located on the inner side surfaces of a pair of link arms 152B, and is located on opposite sides of the left-right direction X in a manner facing each other. The third contact portion 156 can be a separate component mounted on the link arm 152B, or can be a structure formed integrally on the link arm 152B. In this way, the third contact portion 156 can be smoothly contacted with the guide cam 155. Accordingly, the cam surface of the guide cam 155 is a surface facing the direction away from the workpiece support portion 120, for example, toward the rear side and the lower side. In addition, the cam surface of the guide cam 155 is a curved surface extending from the top to the bottom and bending forward. In this way, it is possible to prevent chips from being easily accumulated on the cam surface of the guide cam 155, and the third abutting portion 156 can move smoothly along the cam surface of the guide cam 155. Although the guide cam 155 is arranged on the supporting member 136 as a pair, and the third abutting portion 156 is arranged on the inner side surface of the link arm 152B as an example, the number and position of the guide cams 155, and the number and position of the third abutting portions 156 can be adjusted according to needs. As long as the guide cam 155 and the third abutting portion 156 are respectively located on the supporting member 136 and the link arm 152B and abut against each other, the movement of the first cover 134A can be guided by the relative movement of the guide cam 155 and the third abutting portion 156.

[0122] Furthermore, in this embodiment, if FIG. 4A to FIG. 4C As shown in FIG. 1 , when the first cover 134A is shifted to the open state by the link arm 152B (as described above), the link arm 152B moves forward and downward, so that the third contact portion 156 located on the link arm 152B and contacting the guide cam 155 moves from the upper side to the lower side along the cam surface of the guide cam 155. As a result, the first cover 134A is moved from the upper side to the lower side. Figure 4A The closed state is shifted to Figure 4C Accordingly, when the first cover 134A is shifted to the closed state by the link arm 152B (as described above), the link arm 152B moves to the rear side and to the upper side, so that the third contact portion 156 located on the link arm 152B and contacting the guide cam 155 moves from the lower side to the upper side along the cam surface of the guide cam 155. As a result, the first cover 134A is shifted to the closed state (as described above). Figure 4C The open state is shifted to Figure 4AThus, the moving range of the first cover 134A of the library cover 134 can be designed according to the shape (e.g., having a cam surface facing the rear side and the lower side) and position (e.g., the cam surface is located in front of the third abutment portion 156) of the guide cam 155 and the relative position of the guide cam 155 and the third abutment portion 156. In particular, the first cover 134A is Figure 4A The closed state Figure 4C In the shift of the open state, the angle of the first cover 134A is maintained (for example, the front surface of the first cover 134A is parallel to the up-down direction Z) and the guide cam 155 is moved downward at the same time. That is, the first cover 134A will not fall in the front-to-back direction Y. In this way, the movement range of the first cover 134A can be shortened, so that the structure can be miniaturized. However, the present invention does not limit the angle change of the first cover 134A, which can be adjusted according to needs.

[0123] Although the opening and closing mechanism 150 is taken as an example including the first cam 151, the connecting rod component 152, the second cam 153, the second contact portion 154, the guide cam 155, and the third contact portion 156, the guide cam 155 and the third contact portion 156 may be omitted, and other guiding means may be used to guide the movement of the first cover 134A. In addition, the second cam 153 and the second contact portion 154 may be omitted, and other linkage means may be used to link the opening and closing operation of the second cover 134B with the opening and closing operation of the first cover 134A. Furthermore, although the connecting rod component 152 is taken as an example including the rotating connecting rod 152A, the connecting rod arm 152B, the first contact portion 152C, etc., its specific composition may be adjusted according to the needs. In addition, the above-mentioned operation flow of opening and closing the first cover 134A and the second cover 134B through the movement of the tool magazine 130 and the guidance of the opening and closing mechanism 150 is only one example of the present invention. For example, the first cover 134A and the second cover 134B are not limited to opening in the front-rear direction Y during the movement of the tool magazine 130. As long as the opening and closing operations of the first cover 134A and the second cover 134B are linked to the movement of the tool magazine 130 and are performed by the abutment between the first cam 151 of the opening and closing mechanism 150 and the link member 152, the present invention does not limit the specific composition and operation method of the opening and closing mechanism 150, which can be adjusted according to needs.

[0124] In addition, in this embodiment, Figure 3 , FIG. 4A to FIG. 4C As shown, the opening and closing mechanism 150 further includes a first force applying member 157. The first force applying member 157 is connected to the link member 152 to apply force to close the first cover 134A. As an example, the first force applying member 157 is a tension spring, one end of which is connected to the rotating link 152A and the other end is connected to the support member 136 of the tool magazine 130. Figure 4AThe closed state is shifted to Figure 4C In the open state, the first force applying member 157 is stretched and accumulates elastic force by the movement of the rotating link 152A of the link member 152 relative to the support member 136. Figure 4C The open state is shifted to Figure 4A In the case of the closed state, the first force-applying member 157 assists the movement of the rotating connecting rod 152A by contracting and releasing the elastic force. In this way, the first force-applying member 157 can easily make the first cover 134A of the magazine cover 134 into a closed state. That is, the first cover 134A after shifting to the open state is easily reset and returns to the closed state. Although the first force-applying member 157 is connected to the rotating connecting rod 152A of the connecting rod member 152 as an example here, the first force-applying member 157 can also be connected to other parts of the connecting rod member 152 or the first cover 134A. In addition, although the first force-applying member 157 is connected to the supporting member 136 as an example here, the first force-applying member 157 can also be connected to other parts of the tool magazine 130, as long as the opposite ends of the first force-applying member 157 are respectively connected to the fixed structure on the tool magazine 130 and the first cover 134A or the connecting rod member 152. The present invention does not limit the type, position, and connection method of the first force-applying member 157, which can be adjusted according to needs. Alternatively, the first biasing member 157 may be omitted.

[0125] Similarly, in this embodiment, if Figure 3 , FIG. 4A to FIG. 4C As shown, the opening and closing mechanism 150 further includes a second force applying member 158. The second force applying member 158 is connected to the second cover 134B to apply force to close the second cover 134B. As an example, the second force applying member 158 is a tension spring, one end of which is connected to the second cover 134B and the other end is connected to the tool handle 132 of the tool magazine 130. Figure 4A The closed state is shifted to Figure 4C In the open state, the second force applying member 158 is stretched and accumulates elastic force by the movement of the second cover 134B relative to the handle 132. Figure 4C The open state is shifted to Figure 4AIn the case of the closed state, the second force-applying component 158 ​​assists the movement of the second cover 134B by contracting and releasing the elastic force. In this way, the second force-applying component 158 ​​can easily make the second cover 134B of the magazine cover 134 become the closed state. That is, the second cover 134B after shifting to the open state can be easily reset and return to the closed state. Although the second force-applying component 158 ​​connected to the tool handle 132 is used as an example here, the second force-applying component 158 ​​can also be connected to other components of the tool magazine 130, as long as the opposite ends of the second force-applying component 158 ​​are respectively connected to the fixed structure on the tool magazine 130 and the second cover 134B. The present invention does not limit the type, position, and connection method of the second force-applying component 158, which can be adjusted according to needs. Alternatively, the provision of the second force-applying component 158 ​​can also be omitted.

[0126] Next, the specific structures of the first cover 134A and the second cover 134B of the storage cover 134 are described. Figure 3 , FIG. 4A to FIG. 4C As shown, in the case where the first direction of the workpiece support portion 120 is the front-to-back direction Y, the first cover 134A and the second cover 134B are, for example, a front cover and a rear cover arranged in the front-to-back direction Y, wherein the first cover 134A covers at least the front and the side relative to the tool handle 132, and the second cover 134B covers at least the top and the rear relative to the tool handle 132. As an example, the first cover 134A is configured as a cover body having a front surface and a pair of left and right side surfaces, and the second cover 134B is configured as a cover body having a top surface and a rear surface. Preferably, the second cover 134B is also provided with a pair of left and right side surfaces, and the side surface of the second cover 134B is located inside the side surface of the first cover 134A and overlaps in the left-right direction X. The link arm 152B of the aforementioned link member 152 is, for example, connected to the side surface of the first cover 134A, the second cam 153 is, for example, located on the side surface of the first cover 134A, and the second abutment portion 154 is, for example, located on the side surface of the second cover 134B. In this way, the first cover 134A and the second cover 134B of the magazine cover 134 can cover the tool handle 132 provided in the tool magazine 130 from the front-to-back direction, the side (left-right direction), and the top to block the chips. When the first cover 134A and the second cover 134B are shifted to the open state, at least a portion (such as the upper end) of the first cover 134A and the second cover 134B are separated from each other, and an opening is formed at the top to expose the tool 20 supported by the tool handle 132, but the front-to-back direction and the side of the magazine cover 134 are still covered by the front surface of the first cover 134A, the rear surface of the second cover 134B, and the overlapping side surfaces of the first cover 134A and the second cover 134B. Correspondingly, when the first cover 134A and the second cover 134B are shifted to the closed state, at least a portion (such as the upper end) of the first cover 134A and the second cover 134B are close to each other, thereby covering the tool 20 supported by the tool handle 132.

[0127] As an example, in this embodiment, when the cover is closed (eg Figure 4A ), the upper end of the first cover 134A is located above the second cover 134B. For example, the upper end of the front surface of the first cover 134A is bent backward to form a bent portion 134C, so that the bent portion 134C at the upper end of the first cover 134A is located above the second cover 134B and covers the gap between the first cover 134A and the second cover 134B in the closed state. Furthermore, the first cover 134A has a covering portion 134D covering the upper part of the second cam 153. For example, as Figure 3 As shown, the upper end of the side surface of the first cover 134A is bent inward to form a covering portion 134D, so that the covering portion 134D of the first cover 134A can cover the upper part of the second cam 153 located on the inner side surface of the first cover 134A. In this way, the first cover 134A of the storage cover 134 can cover the second cam 153 from above to block the chips. In addition, the upper end portion of the first cover 134A (for example, the bent portion 134C) has an inclined surface that is inclined downward in a direction (for example, the front) close to the workpiece support portion 120. Correspondingly, the upper end portion of the second cover 134B (for example, at least the upper half of the top surface) has an inclined surface that is inclined downward in a direction (for example, the rear) away from the first cover 134A. In this way, the chips falling on the storage cover 134 during the processing process are easy to fall along the inclined surface to the front side of the first cover 134A and the rear side of the second cover 134B, so that the first cover 134A and the second cover 134B of the storage cover 134 are not easy to accumulate chips. In particular, when the storage cover 134 is shifted from the closed state to the open state, the first cover 134A moves in a direction close to the workpiece support part 120 (for example, the front), and the second cover 134B moves in a direction away from the first cover 134A (for example, the rear). Therefore, by setting the inclined direction of the inclined surface corresponding to the moving direction of the first cover 134A and the second cover 134B, even if chips fall on the first cover 134A and the second cover 134B during the processing process, the chips are not easy to enter the interior of the storage cover 134 through the opening between the first cover 134A and the second cover 134B during the tool changing process. In this way, the storage cover 134 can have a good protection effect.

[0128] Although the magazine cover 134 is taken as an example here, including the first cover 134A as the front cover and the second cover 134B as the rear cover, the first cover 134A and the second cover 134B can also be cover bodies arranged in other directions, as long as the opening and closing operations of the first cover 134A and the second cover 134B are linked to the movement of the tool magazine 130 driven by the workpiece support part 120, and the magazine cover 134 can cover the tool handle 132 provided in the tool magazine 130 from the front and rear directions, the sides (left and right directions), and the top to block the chips. Furthermore, although the magazine cover 134 includes a first cover 134A and a second cover 134B that can move relative to each other to form an opening as an example, the magazine cover 134 may also only have the first cover 134A, which is configured to have a cover structure with a front surface, a rear surface, a top surface, a side surface, etc., and covers the tool handle 132 provided in the tool magazine 130 from the front and rear direction, the side (left and right direction), and the top, and can expose the tool 20 supported on the tool handle 132 by rotating. As long as the magazine cover 134 can cover the periphery of the tool handle 132 and can be opened or closed by the opening and closing mechanism 150 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, which can be adjusted according to needs.

[0129] From the above description, it can be seen that the magazine cover 134 of the tool magazine 130 can be opened or closed during the movement of the tool magazine 130 driven by the workpiece support part 120, so that the machine tool 100 can make the magazine cover 134 into a closed state (corresponding to Figure 1 The first operating state), and the magazine cover 134 is opened during the tool changing process (corresponding to Figure 2 As an example, in FIG. 5A to FIG. 5J FIG. 1 shows an operation diagram of the machine tool 100 removing the tool 20 from the spindle 110 and installing the tool 20 in the tool magazine 130 to the spindle 110 during the tool changing process. Figure 5A In the process, the machine tool 100 completes the machining process, and the first drive mechanism 160 moves the spindle 110 upward in the up-down direction Z as the second direction, so that the spindle 110 leaves the workpiece support 120. Figure 5B In the embodiment, the workpiece support 120 is moved forward in the front-rear direction Y as the first direction by the moving mechanism 140, and the tool magazine 130 located behind the workpiece support 120 is moved forward toward a predetermined position and moved to the position directly below the spindle 110, so as to facilitate the tool changing process. At the same time, during the movement of the tool magazine 130, the magazine cover 134 is shifted from a closed state to an open state, and the tool 20 supported on the tool handle 132 is exposed.

[0130] Then, in Figure 5CIn the embodiment, the first drive mechanism 160 moves the spindle 110 downward in the up-down direction Z as the second direction to approach the tool holder 132, so that the tool 20 mounted on the spindle 110 is located in front of the tool holder 132. The tool 20 mounted on the spindle 110 and the tool holder 132 are located at a position in the front-back direction Y. Figure 5B Then, Figure 5D In the embodiment, the workpiece support 120 is moved forward in the front-rear direction Y as the first direction by the moving mechanism 140, so that the tool 20 mounted on the spindle 110 enters the front opening of the clamp 132a provided on the tool handle 132 from the front side of the tool handle 132, so that the tool 20 is supported on the tool handle 132 by being clamped by the clamp 132a. Figure 5E In the process, the spindle 110 is released from the mounted tool 20, and the spindle 110 is moved upward in the up-down direction Z as the second direction by the first drive mechanism 160 to leave the tool holder 132, so that the released tool 20 is removed from the spindle 110 and remains on the tool holder 132. Fig. 5F In the embodiment, the second drive mechanism 170 moves the spindle 110 in the left-right direction X as the second direction toward the position of the next tool 20 , so that the spindle 110 is located directly above the next tool 20 .

[0131] Then, in Figure 5G In the process, the first drive mechanism 160 moves the spindle 110 downward in the up-down direction Z as the second direction to approach the tool holder 132, and the spindle 110 is combined with the next tool 20. Figure 5H In the process, the workpiece support 120 is moved backward in the front-rear direction Y as the first direction by the moving mechanism 140, so that the tool 20 mounted on the spindle 110 is moved forward to the front side of the tool holder 132 away from the front opening of the fixture 132a provided on the tool holder 132, so that the tool 20 is released from the tool holder 132 and removed from the tool holder 132. Fig.5I In the process, the first drive mechanism 160 moves the spindle 110 upward in the up-down direction Z as the second direction, so that the spindle 110 leaves the tool magazine 130. Finally, Figure 5JIn the process, the machine tool 100 completes the tool changing process, and the workpiece support 120 is moved to the rear of the front-rear direction Y as the first direction by the moving mechanism 140, so that the workpiece support 120 moves toward the processing position and is located directly below the spindle 110, so as to facilitate the processing process. At the same time, during the movement of the tool magazine 130, the magazine cover 134 shifts from the open state to the closed state, and covers the tool 20 supported on the tool handle 132. However, the above content is only one example of the tool changing process of the machine tool 100 of the present invention, and each step thereof can be adjusted according to the requirements (for example, the specific structure and relative position of each component of the machine tool 100, etc.), and the present invention is not limited thereto.

[0132] In addition, in the present embodiment, the machine tool 100 further includes two pillars 190. The pillars 190 support the spindle 110 and are arranged at intervals in a second direction (e.g., left-right direction X) orthogonal to the first direction (front-back direction Y). For example, the two pillars 190 are arranged at intervals in the second direction (e.g., left-right direction X) on the aforementioned base 180, and support the spindle 110 on the upper side of the base 180. The first drive mechanism 160 and the second drive mechanism 170 for making the spindle 110 movable can also be supported on the upper side of the base 180 by the two pillars 190, but this is not a limitation. Furthermore, the tool magazine 130 can pass between the two pillars 190. That is, the interval between the two pillars 190 in the left-right direction X is greater than the size of the tool magazine 130 in the left-right direction X, and the moving range of the tool magazine 130 in the first direction (front-back direction Y) passes between the two pillars 190. In this way, the moving range of the tool magazine 130 can pass through the main structure of the machine tool 100, so that the size of the machine tool 100 in the first direction (front-rear direction Y) can be shortened. Figure 6 As shown, the machine tool 100 can also move the tool magazine 130 further away from the processing area (for example, to the rear) during the processing process, so that the workpiece support 120 can maintain a larger processing area in the first direction. In this case, since the tool magazine 130 can pass between the two pillars 190, even if the tool magazine 130 is set at a position away from the workpiece support 120 to increase the movement range of the tool magazine 130, there is no need to increase the size of the machine tool 100 in the first direction. In this way, the structure can be miniaturized. However, in other embodiments not shown, the spindle 110 can be supported by other structures (for example, a single pillar extending in the up and down direction Z), and the present invention does not limit the specific structure and number of the pillars 190, which can be adjusted according to needs.

[0133] In summary, in the machine tool of the present invention, the opening and closing operation of the magazine cover and the movement of the tool magazine driven by the workpiece support part are linked to each other. During the movement of the tool magazine, the connecting rod component connected to the magazine cover abuts against the first cam, so that the magazine cover is shifted from a closed state to an open state through the guidance of the connecting rod component by the first cam. In this way, the moving speed and moving range of the tool magazine can be designed according to the shape and position of the first cam, so that there is no need to excessively reduce the moving speed of the tool magazine. Examples of the various mechanisms and components of the machine tool are as described above, but are not limited to this. Accordingly, the tool changing efficiency of the machine tool in the present invention can be improved.

[0134] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A machine tool, characterized in that: include: The spindle is used to mount the tool; a workpiece support portion for supporting a workpiece to be machined by the tool mounted on the spindle; A tool magazine, which is arranged on the workpiece support portion and has a tool holder for supporting a plurality of tools, and a magazine cover which covers the periphery of the tool holder and can be opened and closed; A moving mechanism to move the workpiece support portion in a first direction; as well as The opening and closing mechanism enables the cover to be opened or closed, wherein The opening and closing mechanism comprises: First Cam; as well as The link member is connected to the magazine cover and moves the workpiece support portion through the moving mechanism to abut against the first cam, thereby shifting the magazine cover from a closed state to an open state.

2. The machine tool according to claim 1, characterized in that: The position of the first cam in the first direction overlaps with the moving range of the workpiece support.

3. The machine tool according to claim 2, characterized in that: Also includes: a base supporting the workpiece support, The first cam is located on the base.

4. The machine tool according to claim 1, characterized in that: The first direction is the front-to-back direction, The tool magazine is arranged behind the workpiece supporting portion.

5. The machine tool according to any one of claims 1 to 4, characterized in that: The library cover comprises a first cover, The connecting rod component comprises: a rotating link having a first abutting portion abutting against the first cam and rotating due to the abutment between the first cam and the first abutting portion; and The link arm connects the rotating link and the first cover, and shifts the first cover to an open state through the rotation of the rotating link.

6. The machine tool according to claim 5, characterized in that: The upper end portion of the first cover has an inclined surface that is oriented toward a direction approaching the workpiece supporting portion and is inclined downward.

7. The machine tool according to claim 5, characterized in that: The library cover also includes a second cover opposite to the first cover, The opening and closing mechanism also includes: a second cam located on the first cover; and The second abutting portion abuts against the second cam and is located on the second cover. When the first cover is displaced to the open state by the link arm, the second cam moves in a state of abutting against the second abutting portion, whereby the second cover is displaced to the open state.

8. The machine tool according to claim 7, characterized in that: The opening and closing mechanism also includes: a first force applying member connected to the link member to apply force to bring the first cover into a closed state; and The second biasing member is connected to the second cover and biases the second cover so as to close the second cover.

9. The machine tool according to claim 7, characterized in that: In the closed state of the storage cover, the upper end of the first cover is located above the second cover.

10. The machine tool according to claim 7, characterized in that: The upper end portion of the second cover has an inclined surface that is inclined downward in a direction away from the first cover.

11. The machine tool according to claim 7, characterized in that: The first direction is the front-to-back direction, The first cover covers at least the front and the side of the handle, and The second cover covers at least the upper side and the rear side of the knife handle.

12. The machine tool according to claim 11, characterized in that The first cover has a covering portion that covers an upper portion of the second cam.

13. The machine tool according to claim 7, characterized in that: The tool magazine also includes a supporting component for supporting the tool handle. The opening and closing mechanism also includes: a guide cam located on the support member and guiding the movement of the link arm; and The third abutting portion is located on the link arm and abuts against the guide cam.

14. The machine tool according to claim 13, characterized in that The first cover moves downward along the guide cam while maintaining an angle of the first cover during displacement from the closed state to the open state.

15. The machine tool according to claim 13, characterized in that The first contact portion, the second contact portion, and the third contact portion are rollers.

16. The machine tool according to claim 13, characterized in that: Each cam surface of the first cam, the second cam, and the guide cam is a surface facing a direction away from the workpiece support portion.

17. The machine tool according to claim 13, characterized in that: The rotating link rotates relative to the supporting member around the first axis, and The second cover rotates relative to the support member around a second axis.

18. The machine tool according to any one of claims 1 to 4, characterized in that The workpiece support portion comprises: A workbench, used to hold the workpiece; and The rotating mechanism allows the workbench to rotate with the horizontal direction as the rotation axis.

19. The machine tool according to any one of claims 1 to 4, characterized in that The spindle is movable in a second direction orthogonal to the first direction.

20. The machine tool according to any one of claims 1 to 4, characterized in that Also includes: two pillars supporting the main axis and arranged at intervals in a second direction orthogonal to the first direction, The tool magazine can pass between the two pillars.

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