Multi-spindle machine tool

Abstract

The utility model discloses a multi-spindle machine tool. The multi-spindle machine tool comprises a machine base, a workbench, a first machining unit, a second machining unit, a first tool magazine and a second tool magazine. By arranging the two first machining units and the at least one second machining unit, at least three workpieces can be placed on the workbench at the same time, and the multiple workpieces can be machined at the same time, so that the production efficiency is improved. Moreover, the first tool magazine and the second tool magazine are arranged on the machine base, so that the burden of the first frame body and the second frame body in the moving process relative to the machine base is reduced, the moving stability of the first frame body and the second frame body is guaranteed, the machining precision of the first main shaft and the second main shaft for workpieces is improved, and the gravity center of the multi-main-shaft machine tool can be lowered; and the moving stability of the first frame body and the second frame body is further guaranteed, so that the workpiece machining progress of the first main shaft and the second main shaft is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machining equipment, in particular to a multi-spindle machine tool. BACKGROUND

[0002] The machine tool comprises a spindle, a tool magazine, a frame body and a workbench, the spindle and the tool magazine are arranged on the same frame body, the tool magazine is located beside the spindle, the frame body can translate relative to the workbench to drive the spindle to translate relative to the workbench, the spindle can lift relative to the workbench to process a workpiece on the workbench, and the spindle can enter the tool magazine to replace a tool.

[0003] In the related art, in order to improve production efficiency, multiple spindles are arranged to simultaneously process multiple workpieces on the workbench, and the number of frame bodies and tool magazines corresponds to the number of spindles, that is, one frame body is arranged with one spindle and one tool magazine. Since the tool magazine and the spindle are arranged on the same frame body, when the frame body drives the spindle to translate relative to the workbench, the frame body will drive the tool magazine to move together, which will increase the moving burden of the frame body and affect the moving stability of the frame body, and the frame body is generally arranged at a high position of the machine tool. In the case of multiple spindles and multiple tool magazines, the center of gravity of the machine tool is high, which will affect the moving stability of the frame body and the processing precision of the spindle. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to at least solve one of the technical problems in the prior art. To this end, the present application provides a multi-spindle machine tool which can improve the moving stability of the frame body to improve the processing precision of the spindle on the workpiece.

[0005] The multi-spindle machine tool according to the embodiments of the present application comprises a machine base, a workbench, a first machining unit, a second machining unit, a first tool magazine and a second tool magazine.

[0006] The workbench is arranged on the machine base.

[0007] The first machining unit is arranged in two, the first machining unit comprises a first spindle and a first frame body, the first spindle is arranged on the first frame body to be lifted along the height direction, and the first frame body is arranged on the machine base to be moved along the horizontal direction.

[0008] The second machining unit is arranged in at least one, the second machining unit is located between the two first machining units, the second machining unit comprises a second spindle and a second frame body, the second spindle is arranged on the second frame body to be lifted along the height direction, and the second frame body is arranged on the machine base to be moved along the horizontal direction.

[0009] The first tool magazine is arranged in two, the two first tool magazines are respectively fixed on the two sides of the machine base, and each first tool magazine is located on the moving path of one first spindle.

[0010] The second tool magazine is located below the corresponding second machining unit.

[0011] The multi-spindle machine tool according to the embodiments of the present application has at least the following beneficial effects: at least three workpieces can be placed on the worktable at the same time by arranging two first machining units and at least one second machining unit, and the plurality of workpieces can be machined at the same time, thereby improving the production efficiency. Moreover, the first tool magazine and the second tool magazine are arranged on the machine base, thereby reducing the burden of the first frame and the second frame during the movement relative to the machine base, ensuring the movement stability of the first frame and the second frame, improving the machining precision of the first spindle and the second spindle on the workpiece, and reducing the center of gravity of the multi-spindle machine tool of the present application, further ensuring the movement stability of the first frame and the second frame, and further improving the machining progress of the first spindle and the second spindle on the workpiece.

[0012] According to some embodiments of the present application, the machine base is formed with an accommodation space, and the second tool magazine is at least partially located in the accommodation space.

[0013] According to some embodiments of the present application, a translation driving mechanism is further included, which drives the second tool magazine to drive the second tool magazine to enter or exit the accommodation space.

[0014] According to some embodiments of the present application, the horizontal height of the second tool magazine is higher than the table surface of the worktable.

[0015] According to some embodiments of the present application, the second tool magazine has a second tool changing opening, and the part of the second tool changing opening located outside the accommodation space is located below the translation path of the second spindle.

[0016] According to some embodiments of the present application, the first tool magazine has a first tool changing opening, and the first tool changing opening faces the worktable.

[0017] According to some embodiments of the present application, the second tool magazine has a second tool changing opening, and the second tool changing opening faces the worktable.

[0018] According to some embodiments of the present application, the first frame includes a first mounting seat, a first sliding seat and a first lifting seat, the first mounting seat is movably arranged on the machine base along the x-axis direction, the first sliding seat is movably arranged on the first mounting seat along the y-axis direction, the first lifting seat is movably arranged on the first sliding seat along the z-axis direction, and the first spindle is fixed to the first lifting seat.

[0019] The first processing unit further comprises a first x-axis driving mechanism, a first y-axis driving mechanism and a first z-axis driving mechanism. The first x-axis driving mechanism is connected to the first mounting seat for driving the first mounting seat to move along the x-axis direction. The first y-axis driving mechanism is connected to the first sliding seat for driving the first sliding seat to move along the y-axis direction. The first z-axis driving mechanism is connected to the first lifting seat for driving the first lifting seat to move along the z-axis direction.

[0020] According to some embodiments of the present application, the first lifting seat comprises a first connecting portion and a second connecting portion. The first connecting portion is movably arranged in the first sliding seat along the z-axis direction. The second connecting portion is arranged on the first connecting portion close to the corresponding first tool magazine. The first spindle is fixed to the second connecting portion.

[0021] According to some embodiments of the present application, the second frame body comprises a second mounting seat, a second sliding seat and a second lifting seat. The second mounting seat is movably arranged in the base along the x-axis direction. The second sliding seat is movably arranged in the second mounting seat along the y-axis direction. The second lifting seat is movably arranged in the second sliding seat along the z-axis direction. The second spindle is fixed to the second lifting seat.

[0022] The second processing unit further comprises a second x-axis driving mechanism, a second y-axis driving mechanism and a second z-axis driving mechanism. The second x-axis driving mechanism is connected to the second mounting seat for driving the second mounting seat to move along the x-axis direction. The second y-axis driving mechanism is connected to the second sliding seat for driving the second sliding seat to move along the y-axis direction. The second z-axis driving mechanism is connected to the second lifting seat for driving the second lifting seat to move along the z-axis direction.

[0023] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0024] The present application will be further described with reference to the drawings and embodiments, wherein:

[0025] Figure 1 A structural schematic view of a multi-spindle machine tool according to an embodiment of the present application;

[0026] Figure 2 A front view of a multi-spindle machine tool according to an embodiment of the present application;

[0027] Figure 3 A structural schematic view of a multi-spindle machine tool according to an embodiment of the present application from another perspective;

[0028] Figure 4 For Figure 3 A schematic view of part of the structure of a multi-spindle machine tool, in which one of the first machining units is hidden.

[0029] Reference signs:

[0030] The machine base 100, the accommodation space 120;

[0031] The worktable 200;

[0032] The first machining unit 300; the first spindle 310; the first frame body 320, the first mounting seat 321, the first sliding seat 322, the first lifting seat 323, the first connecting part 3231, the second connecting part 3232; the first x-axis driving mechanism 330, the first y-axis driving mechanism 340, the first z-axis driving mechanism 350;

[0033] The second machining unit 400; the second spindle 410; the second frame body 420, the second mounting seat 421, the second sliding seat 422, the second lifting seat 423; the second x-axis driving mechanism 430, the second y-axis driving mechanism 440, the second z-axis driving mechanism 450;

[0034] The first tool magazine 500, the first tool changing port 510;

[0035] The second tool magazine 600, the second tool changing port 610;

[0036] The translation driving mechanism 700. DETAILED DESCRIPTION

[0037] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0038] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the purpose of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0039] In the description of the present application, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, within, etc. are understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0040] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0041] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0042] Referring to Figure 1 , the multi-spindle machine tool according to the embodiment of the present application comprises a machine base 100, a worktable 200, a first machining unit 300, a second machining unit 400, a first tool magazine 500 and a second tool magazine 600.

[0043] The worktable 200 is arranged on the machine base 100.

[0044] The first machining unit 300 is arranged in two, and comprises a first spindle 310 and a first frame body 320. The first spindle 310 is arranged on the first frame body 320 in a manner of being able to ascend and descend along a height direction, and the first frame body 320 is arranged on the machine base 100 in a manner of being able to move along a horizontal direction.

[0045] The second machining unit 400 is arranged in at least one, and is located between the two first machining units 300. The second machining unit 400 comprises a second spindle 410 and a second frame body 420. The second spindle 410 is arranged on the second frame body 420 in a manner of being able to ascend and descend along a height direction, and the second frame body 420 is arranged on the machine base 100 in a manner of being able to move along a horizontal direction.

[0046] The first tool magazine 500 is arranged in two, and each of the two first tool magazines 500 is fixed on the two sides of the machine base 100, and each first tool magazine 500 is located on the moving path of one of the first spindles 310.

[0047] The second tool magazine 600 corresponds to the second machining unit 400 one by one, and the second tool magazine 600 is located below the corresponding second machining unit 400.

[0048] It can be understood that the first frame body 320 can move along the horizontal direction on the machine base 100, so as to drive the first spindle 310 to move along the horizontal direction relative to the workpiece on the workbench 200, and the first spindle 310 can be lifted along the height direction on the first frame body 320, so that the first spindle 310 can be close to the workpiece on the workbench 200 and process the workpiece on the workbench 200. Moreover, the first tool magazine 500 corresponds to the first spindle 310 one by one, the first frame body 320 moves relative to the machine base 100 to drive the first spindle 310 to move along the horizontal direction to the upper side of the first tool magazine 500, the first spindle 310 lifts relative to the first frame body 320, and the first spindle 310 can enter the first tool magazine 500 to change the tool. Similarly, the second frame body 420 can move along the horizontal direction on the machine base 100, so as to drive the second spindle 410 to move along the horizontal direction relative to the workpiece on the workbench 200, and the second spindle 410 can be lifted along the height direction on the second frame body 420, so that the second spindle 410 can be close to the workpiece on the workbench 200 and process the workpiece on the workbench 200. Moreover, the second tool magazine 600 corresponds to the second spindle 410 one by one, the second frame body 420 moves relative to the machine base 100 to drive the second spindle 410 to move along the horizontal direction to the upper side of the second tool magazine 600, the second spindle 410 lifts relative to the second frame body 420, and the second spindle 410 can enter the second tool magazine 600 to change the tool.

[0049] It should be understood that by providing two first machining units 300 and at least one second machining unit 400, at least three workpieces can be placed on the worktable 200 at the same time, and the plurality of workpieces can be machined at the same time, so as to improve the production efficiency. Moreover, by providing the first tool magazine 500 and the second tool magazine 600 on the machine base 100, the burden of the first rack body 320 and the second rack body 420 during movement relative to the machine base 100 is reduced, the movement stability of the first rack body 320 and the second rack body 420 is ensured, the machining precision of the first spindle 310 and the second spindle 410 on the workpiece is improved, and the center of gravity of the multi-spindle machine tool of the present application can be reduced, further ensuring the movement stability of the first rack body 320 and the second rack body 420, and further improving the machining progress of the first spindle 310 and the second spindle 410 on the workpiece. In addition, the first tool magazine 500 and the second tool magazine 600 can not move with the first rack body 320 and the second rack body 420, so as to be away from the workpiece when the first spindle 310 and the second spindle 410 machine the workpiece, reduce the risk of debris generated during machining of the workpiece splashing into the first tool magazine 500 and the second tool magazine 600, and ensure the cleanliness of the tools in the first tool magazine 500 and the second tool magazine 600. Moreover, the second tool magazine 600 is arranged below the second machining unit 400, which can further reduce the center of gravity of the multi-spindle machine tool of the present application, and two second tool magazines 600 are arranged on both sides of the machine base 100, which can ensure the stability of the machine base 100 and avoid interference with the machining process of the first spindle 310 and the second spindle 410.

[0050] Specifically, the first machining unit 300 and the second machining unit 400 are distributed along the x-axis direction. Two first tool magazines 500 are arranged on both sides of the machine base 100 in the x-axis direction.

[0051] Regarding the number of second machining units 400, in the present embodiment, the second machining unit 400 only includes one, and in other embodiments, the second machining unit 400 can also include two or more, and the plurality of second machining units 400 are distributed along the x-axis direction.

[0052] Referring to Figure 1 and Figure 2 According to some embodiments of the present application, the machine base 100 is formed with a containing space 120, and the second tool magazine 600 is at least partially located in the containing space 120.

[0053] It can be understood that by accommodating the second tool magazine 600 in the containing space 120, the occupied space of the second tool magazine 600 is reduced, and interference with the machining process of the second spindle 410 caused by the large occupied space of the second tool magazine 600 is avoided.

[0054] Referring to Figure 2According to some embodiments of the present application, the second tool magazine 600 is driven by a translation driving mechanism 700 to move in and out of the accommodation space 120.

[0055] It can be understood that when the second spindle 410 is machining, the second tool magazine 600 is fully or mostly retracted into the accommodation space 120 by the translation driving mechanism 700, so as to keep the second tool magazine 600 as far away from the worktable 200 as possible, and reduce the risk of debris splashing into the second tool magazine 600. When the second spindle 410 needs to change tools, the translation driving mechanism 700 drives the second tool magazine 600 to at least partially leave the accommodation space 120, so that the second tool magazine 600 can be moved below the second spindle 410, so as to facilitate the second spindle 410 to change tools.

[0056] Specifically, the translation driving mechanism 700 drives the second tool magazine 600 to translate along the y-axis direction. In the present embodiment, the translation driving mechanism 700 includes a cylinder and a slide rail assembly, and in other embodiments, the translation driving mechanism 700 can also include a lead screw module.

[0057] Referring to Figure 2 According to some embodiments of the present application, the horizontal height of the second tool magazine 600 is higher than the table top of the worktable 200.

[0058] It can be understood that since the second spindle 410 is located between the two first spindles 310, and the second tool magazine 600 is located below the second spindle 410, the second tool magazine 600 is located beside the worktable 200. By making the horizontal height of the second tool magazine 600 higher than the table top of the worktable 200, the action of the second tool magazine 600 moving in and out of the accommodation space 120 is not affected by the worktable 200, and the second tool magazine 600 being higher than the table top of the worktable 200 can further reduce the risk of debris entering the second tool magazine 600.

[0059] Referring to Figure 1 According to some embodiments of the present application, the second tool magazine 600 has a part with the second tool changing opening 610 located outside the accommodation space 120 and below the translation path of the second spindle 410.

[0060] It can be understood that when the second spindle 410 needs to change tools, the second spindle 410 is translated to above the second tool changing opening 610 of the second tool magazine 600 by the second frame 420, and the second spindle 410 can enter the second tool magazine 600 through the second tool changing opening 610 to change tools. Therefore, the second tool magazine 600 only needs to have a part with the second tool changing opening 610 located outside the accommodation space 120, so that the second spindle 410 can change tools relative to the second tool magazine 600.

[0061] Specifically, in some embodiments, the second tool magazine 600 is moved out of the accommodation space 120 by the translational driving mechanism 700. In other embodiments, the second tool magazine 600 is fixed to the machine base 100, and only a part of the second tool magazine 600 with the second tool changing opening 610 is located outside the accommodation space 120. The second spindle 410 can be translated above the second tool changing opening 610. In order to avoid the debris generated during the machining of the workpiece from splashing onto the second tool magazine 600, an openable protective cover can be arranged between the second tool magazine 600 and the worktable 200. When the second spindle 410 needs to be changed, the protective cover is opened, and when the second spindle 410 is machining, the protective cover is closed.

[0062] With reference to Figure 1 According to some embodiments of the present application, the first tool magazine 500 has a first tool changing opening 510, and the first tool changing opening 510 faces the worktable 200.

[0063] It can be understood that when the first spindle 310 needs to be changed, the first frame body 320 drives the first spindle 310 to be translated above the first tool changing opening 510 of the first tool magazine 500, and the first spindle 310 can enter the first tool magazine 500 through the first tool changing opening 510. Therefore, by arranging the first tool changing opening 510 of the first tool magazine 500 to face the worktable 200, the path required for the first spindle 310 to change tools can be reduced.

[0064] Specifically, the two first tool changing openings 510 are oppositely arranged in the x-axis direction.

[0065] With reference to Figure 1 According to some embodiments of the present application, the second tool magazine 600 has a second tool changing opening 610, and the second tool changing opening 610 faces the worktable 200.

[0066] It can be understood that when the second spindle 410 needs to be changed, the second frame body 420 drives the second spindle 410 to be translated above the second tool changing opening 610 of the second tool magazine 600, and the second spindle 410 can enter the second tool magazine 600 through the second tool changing opening 610. Therefore, by arranging the second tool changing opening 610 of the second tool magazine 600 to face the worktable 200, the path required for the second spindle 410 to change tools can be reduced.

[0067] Specifically, the second tool changing opening 610 is arranged in the y-axis direction.

[0068] With reference to Figure 3According to some embodiments of the present application, the first frame body 320 comprises a first mounting base 321, a first sliding base 322 and a first lifting base 323, the first mounting base 321 is movably arranged on the machine base 100 along the x-axis direction, the first sliding base 322 is movably arranged on the first mounting base 321 along the y-axis direction, the first lifting base 323 is movably arranged on the first sliding base 322 along the z-axis direction, and the first spindle 310 is fixed to the first lifting base 323; the first machining unit 300 further comprises a first x-axis driving mechanism 330, a first y-axis driving mechanism 340 and a first z-axis driving mechanism 350, the first x-axis driving mechanism 330 is drivingly connected to the first mounting base 321 for driving the first mounting base 321 to move along the x-axis direction, the first y-axis driving mechanism 340 is drivingly connected to the first sliding base 322 for driving the first sliding base 322 to move along the y-axis direction, and the first z-axis driving mechanism 350 is drivingly connected to the first lifting base 323 for driving the first lifting base 323 to move along the z-axis direction.

[0069] It can be understood that the first x-axis driving mechanism 330 drives the first mounting base 321 to move on the machine base 100 along the x-axis direction, so as to drive the first sliding base 322, the first lifting base 323 and the first spindle 310 on the first mounting base 321 to move along the x-axis direction. The first y-axis driving mechanism 340 drives the first sliding base 322 to move on the first mounting base 321 along the y-axis direction, so as to drive the first lifting base 323 and the first spindle 310 on the first sliding base 322 to move along the y-axis direction. The first z-axis driving mechanism 350 drives the first lifting base 323 to move on the first sliding base 322 along the z-axis direction, so as to drive the first spindle 310 on the first lifting base 323 to move along the z-axis direction. Thus, the cooperation of the first x-axis driving mechanism 330, the first y-axis driving mechanism 340 and the first z-axis driving mechanism 350 can drive the first spindle 310 to move along the x-axis direction, the y-axis direction and the z-axis direction through the first mounting base 321, the first sliding base 322 and the first lifting base 323.

[0070] Referring to Figure 3 According to some embodiments of the present application, the first lifting base 323 comprises a first connecting portion 3231 and a second connecting portion 3232, the first connecting portion 3231 is movably arranged on the first sliding base 322 along the z-axis direction, the second connecting portion 3232 is arranged on the first connecting portion 3231 close to the corresponding first tool magazine 500, and the first spindle 310 is fixed to the second connecting portion 3232.

[0071] It can be understood that the first z-axis driving mechanism 350 drives the first connecting part 3231, and the first connecting part 3231 can be driven to ascend and descend along the z-axis direction on the first sliding seat 322. The second connecting part 3232 is arranged on the side of the first connecting part 3231 close to the corresponding first tool magazine 500, the first spindle 310 is fixed to the second connecting part 3232, so that the first spindle 310 can be relatively close to the first tool magazine 500, so as to facilitate the first spindle 310 to change tools, and the second connecting part 3232 can protrude from the first connecting part 3231, so as to avoid interference of the first connecting part 3231 with the tool changing process of the first spindle 310.

[0072] Specifically, the first connecting part 3231 and the second connecting part 3232 are integrally formed.

[0073] With reference to Figure 4 According to some embodiments of the present application, the second frame body 420 comprises a second mounting seat 421, a second sliding seat 422 and a second lifting seat 423. The second mounting seat 421 is movably arranged on the base 100 along the x-axis direction. The second sliding seat 422 is movably arranged on the second mounting seat 421 along the y-axis direction. The second lifting seat 423 is movably arranged on the second sliding seat 422 along the z-axis direction. The second spindle 410 is fixed to the second lifting seat 423. The second machining unit 400 further comprises a second x-axis driving mechanism 430, a second y-axis driving mechanism 440 and a second z-axis driving mechanism 450. The second x-axis driving mechanism 430 drives the second mounting seat 421, so as to drive the second mounting seat 421 to move along the x-axis direction. The second y-axis driving mechanism 440 drives the second sliding seat 422, so as to drive the second sliding seat 422 to move along the y-axis direction. The second z-axis driving mechanism 450 drives the second lifting seat 423, so as to drive the second lifting seat 423 to move along the z-axis direction.

[0074] It can be understood that the second x-axis driving mechanism 430 drives the second mounting base 421 to move along the x-axis direction on the machine base 100, so as to drive the second sliding base 422, the second lifting base 423 and the second spindle 410 on the second mounting base 421 to move along the x-axis direction. The second y-axis driving mechanism 440 drives the second sliding base 422 to move along the y-axis direction on the second mounting base 421, so as to drive the second lifting base 423 and the second spindle 410 on the second sliding base 422 to move along the y-axis direction. The second z-axis driving mechanism 450 drives the second lifting base 423 to lift along the z-axis direction on the second sliding base 422, so as to drive the second spindle 410 on the second lifting base 423 to lift. Thus, the cooperation of the second x-axis driving mechanism 430, the second y-axis driving mechanism 440 and the second z-axis driving mechanism 450 can drive the second spindle 410 to move along the x-axis direction, the y-axis direction and the z-axis direction through the second mounting base 421, the second sliding base 422 and the second lifting base 423.

[0075] The above detailed description of the embodiments of the present application is made in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. Multi-spindle machine, characterized in that, The utility model relates to a machine tool, comprising: a machine base; a worktable disposed on the machine base; two first machining units, each comprising a first spindle and a first frame, the first spindle being vertically movable in the first frame, the first frame being horizontally movable on the machine base; at least one second machining unit, located between the two first machining units, each comprising a second spindle and a second frame, the second spindle being vertically movable in the second frame, the second frame being horizontally movable on the machine base; two first tool magazines, each fixed on a side of the machine base, each first tool magazine being located on the moving path of one of the first spindles; one second tool magazine corresponding to each second machining unit, each second tool magazine being located below the corresponding second machining unit.

2. The multi-spindle machine according to claim 1, characterized in that The machine base forms a receiving space, and the second tool magazine is at least partially located in the receiving space.

3. The multi-spindle machine according to claim 2, characterized in that The machine base further comprises a translation drive mechanism connected to the second tool magazine, for driving the second tool magazine to move in and out of the receiving space.

4. The multi-spindle machine according to claim 3, characterized in that The second tool magazine is higher than the worktable.

5. The multi-spindle machine according to claim 2, characterized in that The second tool magazine has a second tool changing opening, and the part of the second tool changing opening is located outside the receiving space and below the moving path of the second spindle.

6. The multi-spindle machine according to claim 1, characterized in that The first tool magazine has a first tool changing opening, and the first tool changing opening faces the worktable.

7. The multi-spindle machine according to claim 1, characterized in that The second tool magazine has a second tool changing opening, and the second tool changing opening faces the worktable.

8. The multi-spindle machine according to claim 1, characterized in that The first frame comprises a first mounting seat, a first sliding seat, and a first lifting seat, the first mounting seat being horizontally movable on the machine base along the x-axis, the first sliding seat being horizontally movable on the first mounting seat along the y-axis, the first lifting seat being vertically movable on the first sliding seat along the z-axis, and the first spindle being fixed on the first lifting seat. The first machining unit further comprises a first x-axis drive mechanism, a first y-axis drive mechanism, and a first z-axis drive mechanism, the first x-axis drive mechanism being connected to the first mounting seat for driving the first mounting seat to move along the x-axis, the first y-axis drive mechanism being connected to the first sliding seat for driving the first sliding seat to move along the y-axis, and the first z-axis drive mechanism being connected to the first lifting seat for driving the first lifting seat to move along the z-axis.

9. Machine tool according to claim 8, characterized in that The first lifting seat comprises a first connecting portion and a second connecting portion, the first connecting portion being vertically movable on the first sliding seat along the z-axis, the second connecting portion being located on the side of the first connecting portion close to the corresponding first tool magazine, and the first spindle being fixed on the second connecting portion.

10. The multi-spindle machine according to claim 1, characterized in that The second frame body comprises a second mounting base, a second sliding base and a second lifting base, the second mounting base is movably arranged along the x-axis direction on the base, the second sliding base is movably arranged along the y-axis direction on the second mounting base, and the second lifting base is movably arranged along the z-axis direction on the second sliding base, and the second spindle is fixed on the second lifting base; The second machining unit further comprises a second x-axis driving mechanism, a second y-axis driving mechanism and a second z-axis driving mechanism, the second x-axis driving mechanism is drivingly connected with the second mounting base for driving the second mounting base to move along the x-axis direction, the second y-axis driving mechanism is drivingly connected with the second sliding base for driving the second sliding base to move along the y-axis direction, and the second z-axis driving mechanism is drivingly connected with the second lifting base for driving the second lifting base to move along the z-axis direction.

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