Turret device and machining center

Abstract

The application provides a rotary table device, which comprises a base, a rotating assembly rotatably arranged on the base, the rotating assembly comprising a rotating support for supporting a workbench, a liquid distribution shaft assembly and a first adapter, a plurality of first hydraulic action parts for fixing the workbench are arranged on the rotating support, a first liquid path group for supplying oil to the first hydraulic action parts is arranged in the rotating support body, the liquid distribution shaft assembly comprises a liquid distribution shaft, a mounting hole is arranged at the position of the shaft center of the rotating support, the top end of the liquid distribution shaft is arranged in the mounting hole, the bottom end of the first adapter is connected with the top end of the liquid distribution shaft, and the top end of the first adapter is used for being connected with the workbench. The application also provides a machining center. The rotary table device provided by the technical scheme of the application can supply hydraulic oil to the hydraulic clamp and the first hydraulic action part while improving the integration of the rotary table.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machine tools, in particular to a rotary table device and a machining center. BACKGROUND

[0002] The rotary table is a rotating mechanism commonly used in four-axis or five-axis machine tools, and a workpiece is clamped on the rotary table to facilitate machining of the workpiece.

[0003] The existing rotary table is generally provided with a hydraulic clamp, and the workpiece is machined by the hydraulic clamp, for example, in CN115533158A, please refer to Figure 1 , a workbench is installed on the workbench, a workbench is installed on the workbench, a first hydraulic clamp and a second hydraulic clamp are installed on the workbench, and the first hydraulic clamp and the second hydraulic clamp are respectively installed on the opposite two sides of the workbench. However, the space on the workbench is limited, and the hydraulic power of the first hydraulic clamp and the second hydraulic clamp is delivered through external oil supply equipment and oil supply pipeline, which occupies a large space and reduces the integration of the rotary table.

[0004] Therefore, how to ensure that the hydraulic oil is provided to the hydraulic clamp while improving the integration of the rotary table is a problem to be solved. SUMMARY

[0005] The present application provides a rotary table device which can ensure that the hydraulic oil is provided to the hydraulic clamp while improving the integration of the rotary table.

[0006] The present application provides a rotary table device, comprising a base and a rotating assembly rotatably arranged on the base, the rotating assembly comprising a rotating support, the rotating support being used to support a workbench; further comprising a liquid distribution shaft assembly and a first adapter;

[0007] A plurality of first hydraulic action parts for fixing the workbench are arranged on the rotating support, and a first liquid path group for supplying oil to the first hydraulic action parts is arranged in the body of the rotating support;

[0008] The liquid distribution shaft assembly comprises a liquid distribution shaft, an installation hole is arranged at the position of the shaft center of the rotating support, the top end of the liquid distribution shaft is arranged in the installation hole, the bottom end of the first adapter is connected with the top end of the liquid distribution shaft, and the top end of the first adapter is used to be connected with the workbench;

[0009] Among them, the second liquid path group and the third liquid path group are arranged on the liquid distribution shaft, the fourth liquid path group is arranged on the first adapter, the second liquid path group is communicated with the first liquid path group, the third liquid path group is communicated with the fourth liquid path group, the top end of the fourth liquid path group is provided with a first external matching valve, and the fourth liquid path group is used to supply oil to the workbench through the first external matching valve.

[0010] In some possible embodiments, the bottom of the workbench is provided with a second adapter matched with the first adapter, the second adapter is provided with a fifth liquid path group, the workbench is provided with a sixth liquid path group, the sixth liquid path group is connected with the fifth liquid path group, and the bottom end of the fifth liquid path group is provided with a second external matching valve for plug-in matching with the first external matching valve.

[0011] When the first external matching valve is plug-in matched with the second external matching valve, the fifth liquid path group and the fourth liquid path group are communicated; when the first external matching valve is separated from the second external matching valve, the first external matching valve prevents the liquid in the fourth liquid path group from flowing out.

[0012] In some possible embodiments, the bottom end of the first adapter is provided with a step arranged in the mounting hole, and the rotating assembly further comprises a cover ring sleeved on the first adapter and fixing the first adapter at the top end of the liquid preparation shaft.

[0013] In some possible embodiments, the liquid preparation shaft is peripherally formed with a fixing ring abutting against the bottom end of the rotating support, and the communication end of the second liquid path group with the first liquid path group is located on the outer circumferential surface or the upper end surface of the fixing ring; or, the communication end of the second liquid path group with the first liquid path group is located on the outer circumferential surface of the liquid preparation shaft.

[0014] The third liquid path group is arranged along the axial direction of the liquid preparation shaft, the communication end of the third liquid path group with the fourth liquid path group is located at the top end of the liquid preparation shaft, and the fourth liquid path group is arranged along the axial direction of the first adapter.

[0015] The communication end of the fifth liquid path group with the sixth liquid path group is located at the top end or the circumferential side of the second adapter, and the outlet end of the sixth liquid path group is open to the outer circumferential surface of the workbench.

[0016] In some possible embodiments, the liquid preparation shaft further comprises a first central air duct located on the central axis and arranged in the axial direction of the central axis.

[0017] The first adapter is provided with a second central air duct, the second adapter is provided with a third central air duct, the second central air duct is provided with a third external matching valve, and the third central air duct is provided with a fourth external matching valve.

[0018] When the third external matching valve is plug-in matched with the fourth external matching valve, the second central air duct and the third central air duct are communicated; when the third external matching valve is separated from the fourth external matching valve, the third external matching valve prevents the air flow in the second central air duct from leaking out.

[0019] In some possible embodiments, a conical ring is arranged on the rotating support, and a conical seat that is positioned and matched with the conical ring is arranged on the workbench.

[0020] In some possible embodiments, the liquid distribution shaft assembly further comprises an oil distribution cylinder, which is rotatably sleeved on the outer periphery of the liquid distribution shaft.

[0021] In some possible embodiments, a rotary encoder is further included, which is installed between the liquid distribution shaft and the rotating support, and is used to obtain the rotation angle of the liquid distribution shaft and the rotating support.

[0022] The application further provides a machining center comprising a bed and the rotary table device, wherein the bed is provided with a support part that is fixedly connected with the base of the rotary table device.

[0023] In some possible embodiments, a linear movement mechanism arranged on the bed and a main shaft are further included, the main shaft is installed on the bed through the linear movement mechanism, and the main shaft is located at the side of the machining table or above the machining table, and the linear movement mechanism is arranged at intervals with the rotary table device.

[0024] The rotary table device, the liquid path switching assembly comprises a first switching part and a second switching part, the first switching part is arranged on the first end face, the first switching part comprises a fourth liquid path group, one end of the fourth liquid path group is communicated with the third liquid path group, and the other end is used for being communicated with the liquid path group of the second switching part, a first external matching valve is arranged in the liquid path at the other end of the fourth liquid path group, a plurality of first hydraulic action parts for fixing the workbench are arranged on the rotating support, a first liquid path group for supplying oil to the first hydraulic action parts is arranged in the rotating support body, and the fourth liquid path group is used for supplying oil to the workbench through the first external matching valve, the first hydraulic action parts and the workbench are supplied with oil through two hydraulic circuits respectively, the integration degree of the rotary table can be improved while the hydraulic oil is provided to the hydraulic clamp and the first hydraulic action parts. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor based on the structures shown in the drawings.

[0026] Figure 1 The structure of the bearing of the prior art.

[0027] Figure 2 The perspective view of the rotary table device provided by an embodiment of the present application.

[0028] Figure 3 An exploded view of the turntable device provided for an embodiment of the present application.

[0029] Figure 4 For Figure 1 A perspective view.

[0030] Figure 5 For Figure 4 An enlarged schematic view of the middle A.

[0031] Figure 6 For Figure 4 An enlarged schematic view of the middle B.

[0032] Figure 7 For Figure 1 A perspective view from another angle.

[0033] Element symbol explanation

[0034] 100, base; 300, workbench; A6, sixth liquid path group; 301, clamp air source air channel; 302, cone seat; 120, encoder flange; 101, stepped portion; 110, encoder shaft; 111, limiting convex ring; 200, rotation assembly; 210, rotation support; 220, first hydraulic action portion; 230, cover ring; A1, first liquid path group; 211, mounting hole; 212, conical ring; 400, liquid distribution shaft assembly; 410, liquid distribution shaft; A2, second liquid path group; A3, third liquid path group; A4, fourth liquid path group; 411, fixed ring; 420, first central air channel; 412, communication groove; 430, oil distribution cylinder; 500, first adapter; 520, step; 600, second adapter; A4, fourth liquid path group; B1, first external matching valve; B3, third external matching valve; B4, fourth external matching valve; A5, fifth liquid path group; B2, second external matching valve; 510, second central air channel; 610, third central air channel; 700, rotary encoder.

[0035] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0036] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do 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.

[0037] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an ordered ranking of the indicated technical features. Thus, features defined with "first", "second" or "third" can explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality of" is two or more, unless explicitly and specifically defined otherwise.

[0038] In the present application, unless explicitly and specifically defined otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In order to have a clearer and more accurate understanding of the content of the present application, now will be combined with the drawings in detail. The drawings of the present application show the examples of the embodiments of the present application, wherein the same reference numerals represent the same elements. It can be understood that the proportions shown in the drawings of the specification are not the proportions actually implemented in the present application, which are only for the purpose of illustration, and are not drawn according to the original size.

[0040] Please refer to Figure 2 and 4 The present application provides a rotary table device, which comprises a base 100 and a rotating assembly 200 rotatably arranged on the base 100, the rotating assembly 200 comprising a rotating support 210 for supporting a workbench 300; further comprising a liquid distribution shaft assembly 400 and a first adapter 500. Wherein, Y axis represents transverse direction, Z axis represents vertical direction, and X axis represents longitudinal direction.

[0041] Please refer to Figure 3 and 4 A plurality of first hydraulic action parts 220 for fixing the workbench 300 are arranged on the rotating support 210, and a first liquid path group A1 for supplying oil to the first hydraulic action parts 220 is arranged in the body of the rotating support 210; the liquid distribution shaft assembly 400 comprises a liquid distribution shaft 410, a mounting hole 211 is arranged at the position of the shaft center of the rotating support 210, the top end of the liquid distribution shaft 410 is arranged in the mounting hole 211, the bottom end of the first adapter 500 is connected with the top end of the liquid distribution shaft 410, and the top end of the first adapter 500 is used for connecting with the workbench 300; so as to facilitate the transmission of hydraulic oil through the liquid distribution shaft 410, the first adapter 500 and the workbench 300 to the hydraulic clamp mounted on the workbench 300.

[0042] Please refer to Figure 4The second liquid path group A2 and the third liquid path group A3 are arranged on the liquid preparation shaft 410, the fourth liquid path group A4 is arranged on the first adapter 500, the second liquid path group A2 is communicated with the first liquid path group A1, the third liquid path group A3 is communicated with the fourth liquid path group A4, the top end of the fourth liquid path group A4 is provided with a first external matching valve B1, and the fourth liquid path group A4 is used to supply oil to the workbench 300 through the first external matching valve B1. Thus, the hydraulic oil can be conveniently communicated through the liquid preparation shaft 410, the first adapter 500 and the workbench 300, and the hydraulic oil can also be controlled.

[0043] Please refer to Figure 4 and 5 The bottom of the workbench 300 is provided with a second adapter 600 matched with the first adapter 500, the second adapter 600 is provided with a fifth liquid path group A5, the workbench 300 is provided with a sixth liquid path group A6, the sixth liquid path group A6 is connected with the fifth liquid path group A5, and the bottom end of the fifth liquid path group A5 is provided with a second external matching valve B2 used for plug-in matching with the first external matching valve B1. Thus, the hydraulic oil can be communicated through the liquid preparation shaft 410, the first adapter 500, the second adapter 600 and the workbench 300.

[0044] When the first external matching valve B1 is plug-in matched with the second external matching valve B2, the fifth liquid path group A5 and the fourth liquid path group A4 are communicated; when the first external matching valve B1 is separated from the second external matching valve B2, the first external matching valve B1 prevents the liquid in the fourth liquid path group A4 from flowing out.

[0045] Please refer to Figure 3 The bottom end of the first adapter 500 is provided with a step 520 arranged in the mounting hole 211, and the rotating assembly 200 further includes a cover ring 230 sleeved on the first adapter 500 and fixing the first adapter 500 at the top end of the liquid preparation shaft 410, so that the first adapter 500 and the liquid preparation shaft 410 are conveniently fixed and detached.

[0046] Please refer to Figure 3 The outer periphery of the liquid preparation shaft 410 is formed with a fixing ring 411 abutting against the bottom end of the rotating support 210, and the communication end of the second liquid path group A2 and the first liquid path group A1 is located on the outer peripheral surface or the upper end surface of the fixing ring 411; or the communication end of the second liquid path group A2 and the first liquid path group A1 is located on the outer peripheral surface of the liquid preparation shaft 410; thus, the hydraulic oil can be conveniently provided to the first hydraulic acting part 220 through the second liquid path group A2 and the first liquid path group A1.

[0047] Please refer back Figure 4 , the third liquid path group A3 is arranged along the axial direction of the liquid preparation shaft 410, and the communication end of the third liquid path group A3 and the fourth liquid path group A4 is located at the top end of the liquid preparation shaft 410, and the fourth liquid path group A4 is arranged along the axial direction of the first adapter 500; the communication end of the fifth liquid path group A5 and the sixth liquid path group A6 is located at the top end or the side of the second adapter 600, and the outlet end of the sixth liquid path group A6 is connected to the outer periphery of the workbench 300.

[0048] The workbench 300 is used to install a workpiece, and in this embodiment, the workpiece on the workbench 300 is fixed by a hydraulic clamp.

[0049] Please refer back Figure 4 and 7 The number of liquid paths in the first liquid path group A1, the second liquid path group A2, the third liquid path group A3, the fourth liquid path group A4, the fifth liquid path group A5 and the sixth liquid path group A6 can be determined according to actual conditions, for example, the number of liquid paths in the first liquid path group A1, the second liquid path group A2, the third liquid path group A3, the fourth liquid path group A4, the fifth liquid path group A5 and the sixth liquid path group A6 is four, so as to provide hydraulic oil for two groups of hydraulic clamps.

[0050] Please refer back Figure 4 The liquid preparation shaft 410 further comprises a first central air duct 420 located on the central axis 20 line, which is arranged in the axial direction along the central axis 20 line; the first adapter 500 is provided with a second central air duct 510, and the second adapter 600 is provided with a third central air duct 610, the third central air duct 610 is provided with a third external connection valve B3, and the fourth external connection valve B4 is provided in the third central air duct 610; when the third external connection valve B3 and the fourth external connection valve B4 are connected by plug-in connection, the second central air duct 510 and the third central air duct 610 are in communication; when the third external connection valve B3 and the fourth external connection valve B4 are separated, the third external connection valve B3 prevents the outflow of air flow in the second central air duct 510, so as to achieve the effect of protecting the second central air duct 510.

[0051] Please refer back Figure 3 The workbench 300 body is further provided with a clamp gas source air duct 301 leading to a predetermined position of the workbench 300, and the clamp gas source air duct 301 is in communication with the third central air duct 610, so as to facilitate the gas supply for the hydraulic clamp.

[0052] Please refer back Figure 2 and 3The rotating support 210 is provided with a conical ring 212, and the workbench 300 is provided with a conical seat 302. It can be understood that the shape of the conical ring 212 can match the shape of the conical seat 302, so as to improve the positioning and fixing between the workbench 300 and the rotating support 210.

[0053] Please refer to Figure 3 The liquid distribution shaft assembly 400 further comprises an oil distribution cylinder 500, which is rotatably sleeved on the outer periphery of the liquid distribution shaft 410. For example, the outer periphery of the liquid distribution shaft 410 is provided with mutually non-communicating communication grooves 412 in the axial direction, which include liquid inlet communication grooves and liquid outlet communication grooves. Through the liquid inlet communication grooves and the liquid outlet communication grooves, stable hydraulic oil pressure can be provided for the liquid distribution shaft 410 when the liquid distribution shaft 410 rotates relative to the oil distribution cylinder 500.

[0054] Please refer to Figure 6 The rotary table device further comprises a rotary encoder 700, which is installed between the liquid distribution shaft 410 and the rotating support 210, and is used to obtain the rotation angle of the liquid distribution shaft 410 and the rotating support 210. The rotary table device further comprises an encoder flange 120 and an encoder shaft 110, the encoder shaft 110 is fixed to the bottom of the central shaft 20, and the encoder flange 120 is fixed to the bottom of the liquid distribution shaft 410; the encoder flange 120 is annular, the inner periphery of the encoder flange 120 is provided with a stepped portion 101, and the peripheral portion of the encoder shaft 110 is provided with a limiting convex ring 111 which is slidably abutted to the outer periphery of the stepped portion 101.

[0055] The rotary table device described above, the liquid path switching assembly 160 comprises a first switching piece 500 and a second switching piece 600, the first switching piece 500 is arranged on the first end face, the first switching piece 500 comprises a fourth liquid path group A4, one end of the fourth liquid path group A4 is communicated with the third liquid path group, and the other end is used for being communicated with the liquid path group of the second switching piece 600, a first external matching valve B1 is arranged in the liquid path at the other end of the fourth liquid path group A4, and a plurality of first hydraulic action portions 220 for fixing the workbench 300 are arranged on the rotating support 210, a first liquid path group A1 for supplying oil to the first hydraulic action portions 220 is arranged in the rotating support 210, and the fourth liquid path group A4 is used for supplying oil to the workbench 300 through the first external matching valve B1, and the two hydraulic circuits are used to supply oil to the first hydraulic action portions 220 and the workbench 300 respectively, so as to provide hydraulic oil for the hydraulic clamp and the first hydraulic action portions 220, and improve the integration of the rotary table.

[0056] The application further provides a machining center comprising the rotary table device and a bed body, the bed body is provided with a support part, the support part is fixedly connected with the base 100 of the rotary table device. In some feasible embodiments, a linear moving mechanism and a spindle are further arranged on the bed body, the spindle is installed on the bed body through the linear moving mechanism, and the spindle is located at the side of the machining table or above the machining table, and the linear moving mechanism is arranged in a spaced manner with the rotary table device.

[0057] Obviously, various modifications and changes can be made to the present application without departing from the spirit and scope of the application. Thus, it is intended that the present application cover modifications and changes as long as they come within the scope of the claims and their equivalents.

[0058] The above only lists the preferred embodiments of the present application, and of course cannot limit the scope of the protection of the present application, and equivalent changes made according to the claims of the present application still belong to the scope of the present application.

Claims

1. A rotary table device, comprising a base (100) and a rotating assembly (200) rotatably arranged on the base (100), the rotating assembly (200) comprising a rotating support (210) for supporting a worktable (300); characterized in that, Also include the liquid preparation shaft assembly (400) and the first adapter (500); A plurality of first hydraulic action parts (220) for fixing the workbench (300) are arranged on the rotating support (210), and a first hydraulic circuit group (A1) for supplying oil to the first hydraulic action parts (220) is arranged in the rotating support (210); The liquid preparation shaft assembly (400) includes a liquid preparation shaft (410), an installation hole (211) is arranged at the position of the shaft center of the rotating support (210), the top end of the liquid preparation shaft (410) is arranged in the installation hole (211), the bottom end of the first adapter (500) is connected with the top end of the liquid preparation shaft (410), and the top end of the first adapter (500) is used for being connected with the workbench (300). The second liquid circuit group (A2) and the third liquid circuit group (A3) are arranged on the liquid preparation shaft (410), the fourth liquid circuit group (A4) is arranged on the first adapter (500), the second liquid circuit group (A2) is communicated with the first liquid circuit group (A1), the third liquid circuit group (A3) is communicated with the fourth liquid circuit group (A4), the top end of the fourth liquid circuit group (A4) is provided with a first external matching valve (B1), and the fourth liquid circuit group (A4) is used for supplying oil to the workbench (300) through the first external matching valve (B1). The bottom of the workbench (300) is provided with a second adapter (600) matched with the first adapter (500), the second adapter (600) is provided with a fifth liquid circuit group (A5), the bottom end of the fifth liquid circuit group (A5) is provided with a second external matching valve (B2), the second external matching valve (B2) is used for being plugged and matched with the first external matching valve (B1); when the first external matching valve (B1) and the second external matching valve (B2) are plugged and matched and connected, the fifth liquid circuit group (A5) and the fourth liquid circuit group (A4) are communicated; when the first external matching valve (B1) and the second external matching valve (B2) are separated, the first external matching valve (B1) prevents the liquid in the fourth liquid circuit group (A4) from flowing out; the liquid preparation shaft (410) further includes a first central air duct (420) located on the central axis, the first central air duct (420) is arranged in the axial direction along the central axis; the first adapter (500) is provided with a second central air duct (510), the second adapter (600) is provided with a third central air duct (610), and the workbench (300) is further provided with a clamp air source air duct (301), and the clamp air source air duct (301) is communicated with the third central air duct (610).

2. The turntable apparatus of claim 1, wherein The workbench (300) is provided with a sixth liquid circuit group (A6), and the sixth liquid circuit group (A6) is connected with the fifth liquid circuit group (A5).

3. The turntable apparatus of claim 2, wherein The bottom end of the first adapter (500) is provided with a step (520) arranged in the mounting hole (211), and the rotating assembly (200) further comprises a cover ring (230) sleeved on the first adapter (500) and fixed on the top end of the liquid preparation shaft (410).

4. The turntable apparatus of claim 2, wherein The liquid preparation shaft (410) is provided with a fixing ring (411) on the outer periphery, which abuts against the bottom end of the rotating support (210), and the communication end of the second liquid path group (A2) and the first liquid path group (A1) is located on the outer peripheral surface or the upper end surface of the fixing ring (411); or the communication end of the second liquid path group (A2) and the first liquid path group (A1) is located on the outer peripheral surface of the liquid preparation shaft (410). The third liquid path group (A3) is arranged along the axial direction of the liquid preparation shaft (410), the communication end of the third liquid path group (A3) and the fourth liquid path group (A4) is located on the top end of the liquid preparation shaft (410), and the fourth liquid path group (A4) is arranged along the axial direction of the first adapter (500). The communication end of the fifth liquid path group (A5) and the sixth liquid path group (A6) is located on the top end or the peripheral side of the second adapter (600), and the outlet end of the sixth liquid path group (A6) leads to the outer periphery of the workbench (300).

5. The turntable apparatus of claim 2 wherein, The third external connection valve (B3) is arranged in the second central air duct (510), and the fourth external connection valve (B4) is arranged in the third central air duct (610). When the third external connection valve (B3) and the fourth external connection valve (B4) are connected by plug-in cooperation, the second central air duct (510) and the third central air duct (610) are communicated; when the third external connection valve (B3) and the fourth external connection valve (B4) are separated, the third external connection valve (B3) prevents the air flow in the second central air duct (510) from leaking out.

6. A turntable apparatus as claimed in any one of claims 1 to 5 wherein, The rotating support (210) is provided with a conical ring (212), and the workbench (300) is provided with a conical seat (302) positioned and matched with the conical ring (212).

7. A turntable apparatus as claimed in any one of claims 1 to 5 wherein, The liquid preparation shaft assembly (400) further comprises an oil supply cylinder (430) which is rotatably sleeved on the outer periphery of the liquid preparation shaft (410).

8. The turntable apparatus of claim 7, wherein A rotary encoder (700) is further included, which is installed between the liquid preparation shaft (410) and the rotating support (210) and is used to obtain the rotation angle of the liquid preparation shaft (410) and the rotating support (210).

9. A machining center, characterized by The bed body is provided with a support part which is fixedly connected with the base (100) of the rotary table device.

10. The machining center according to claim 9, characterized in that A linear movement mechanism and a main shaft are further arranged on the bed body, the main shaft is installed on the bed body through the linear movement mechanism, and the main shaft is located on the side of the machining table or above the machining table, and the linear movement mechanism is arranged separately from the rotary table device.

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