Double-station cradle type numerical control rotating table

Abstract

The invention discloses a double-station cradle type numerical control rotary table which is characterized in that the double-station cradle type numerical control rotary table comprises cradle components and a rotary table component, and the rotary table component is arranged between the two cradle components and connected with the two cradle components; the two cradle components can drive the rotary table component to rotate forwards and reversely along an A axis and stop at a specified angle, the rotary table component is provided with two independent machining stations, and the two machining stations rotate forwards and reversely along a C1 axis and a C2 axis correspondingly and stop at a specified angle, so that the space pose of a workpiece is controlled, and the machining efficiency is improved. Five-face machining through one-time clamping is achieved. The double-station cradle type numerical control rotating table can machine two workpieces at the same time at a time, and the machining efficiency is doubled.

Description

Technical Field

[0001] The invention relates to the technical field of numerically controlled rotary worktables, and in particular to a double-station cradle-type numerically controlled rotary worktable. Background Art

[0002] The five-axis machining center is a CNC machine tool mainly used for machining complex curved surfaces. Among them, the workbench used in the conventional cradle-type five-axis machining center is a single-station cradle-type CNC rotary table. The CNC system controls the movement of the machine tool in the X-axis, Y-axis, and Z-axis directions to control the tool trajectory. The CNC system controls the rotation of the cradle-type CNC rotary table in the A-axis and C-axis directions to control the spatial posture of the workpiece and achieve five-sided machining in one clamping. The conventional cradle-type CNC rotary table has one workstation, which means that it can only process one workpiece at a time.

[0003] Therefore, it is urgent to design a workbench that can process two workpieces at the same time to improve work efficiency. Summary of the invention

[0004] In view of the above problems existing in the prior art, it is intended to provide a double-station cradle-type CNC rotary worktable.

[0005] The specific technical solutions are as follows:

[0006] A double-station cradle-type CNC rotary worktable mainly includes: a cradle component and a turntable component. The turntable component is arranged between two cradle components and connected to the two cradle components. The turntable component can be driven to rotate forward, reverse and stop at a specified angle along the A axis through the two cradle components. The turntable component has two independent processing stations. The two processing stations rotate forward, reverse and stop at a specified angle along the corresponding C1 axis and C2 axis respectively, so as to control the spatial posture of the workpiece and realize five-sided processing in one clamping.

[0007] The above-mentioned double-station cradle type CNC rotary table also has such a feature that the cradle component includes a cradle central axis, a cradle bearing, a cradle flange 1, a cradle torque motor, a cradle base, a cradle flange 2, a cradle pneumatic clamp and a cradle wear ring;

[0008] One end of the cradle central axis is connected to the turntable component, the cradle bearing is sleeved at one end of the cradle central axis, a set of cradle flanges is sleeved on the outer periphery of the cradle central axis and close to the cradle bearing, the cradle torque motor is sleeved on the outer periphery of the cradle flange one, the cradle base is sleeved on the outer periphery of the cradle torque motor, the cradle flange two is sleeved on the outer periphery of the cradle central axis, the cradle flange two is connected to the cradle base, the cradle wear-resistant ring is sleeved on the cradle central axis, and the cradle pneumatic clamp is sleeved on the outer periphery of the cradle wear-resistant ring and connected to the cradle flange two.

[0009] The above-mentioned double-station cradle-type CNC rotary worktable also has the following characteristics: the outer side of the cradle pneumatic clamp is wrapped with a protective cover, the protective cover is sleeved on the central axis of the cradle, one end of the central axis of the cradle is sleeved with a cradle oil seal, the outer periphery of the cradle oil seal is sleeved with a cradle oil seal retaining ring, the cradle oil seal retaining ring is connected to the cradle base, and the cradle oil seal is in contact with the cradle bearing.

[0010] The above-mentioned double-station cradle-type CNC rotary worktable also has the feature that an angle encoder hub is provided at the other end of the central axis of the cradle.

[0011] The above-mentioned double-station cradle-type CNC rotary worktable also has the feature that an angle encoder reading head is arranged on the protective cover.

[0012] The above-mentioned double-station cradle-type CNC rotary table also has the following characteristics: the rotary table component includes a rotary table base, a connecting seat and a rotary table mechanism;

[0013] A connecting seat is provided at one end of the central axis of the cradle of each cradle component, and both ends of the turntable base are connected to the connecting seats at the corresponding ends by screws. The turntable base is provided with two turntable holes, and a turntable mechanism is installed in each turntable hole.

[0014] The above-mentioned double-station cradle-type CNC rotary table also has the following characteristics: the turntable mechanism includes a turntable center shaft, a turntable bearing, a turntable flange, a turntable torque motor, a turntable wear-resistant ring, a turntable pneumatic clamp, a circular grating installation mechanism and a circular grating;

[0015] The turntable bearing, the turntable flange and the turntable wear-resistant ring are sequentially sleeved on the outer circumference of the turntable central axis, the turntable torque motor is sleeved on the outer circumference of the turntable flange, the turntable pneumatic clamp is sleeved on the outer circumference of the turntable wear-resistant ring, and the turntable base is sleeved on the outer circumference of the turntable torque motor;

[0016] One end of the circular grating installation mechanism is inserted into the central axis of the turntable, and the other end of the circular grating installation mechanism extends out of the central axis of the turntable. The circular grating is installed at the other end of the circular grating installation mechanism, and the circular grating is arranged close to the wear-resistant ring of the turntable.

[0017] The above-mentioned double-station cradle-type CNC rotary table also has the following characteristics: the circular grating installation mechanism includes a circular grating rotating shaft, a circular grating fixing plate, a circular grating fixing shaft, a rotating shaft flange and a circular grating bearing;

[0018] The circular grating fixed shaft is entirely located in the central shaft of the turntable, the circular grating rotating shaft is entirely passed through the circular grating fixed shaft, one end of the circular grating rotating shaft passes through the circular grating fixed shaft and is sleeved with the rotating shaft flange, the other end of the circular grating rotating shaft extends out of the central shaft of the turntable, the inner ring of the circular grating is mounted on the other end of the circular grating rotating shaft, the outer ring of the circular grating is mounted on the circular grating fixed shaft, the circular grating fixed plate is sleeved on the circular grating fixed shaft, the circular grating bearing is mounted between the circular grating rotating shaft and the circular grating fixed shaft, and a turntable end face sealing cover is also arranged in the central shaft of the turntable.

[0019] The above-mentioned double-station cradle-type CNC rotary table also has such a feature that the rotary table mechanism also includes a rotary table rotating retaining ring and a rotary table oil seal;

[0020] The turntable oil seal is sleeved on one end of the turntable center axis away from the circular grating, the turntable rotating retaining ring is sleeved on one end of the turntable center axis away from the circular grating, a part of the turntable oil seal is located in the turntable base, and the part of the turntable oil seal exposed from the turntable base is against the turntable rotating retaining ring and the turntable center axis.

[0021] The positive effects of the above technical solution are:

[0022] The present invention provides a double-station cradle-type CNC rotary table, which can process two workpieces at the same time, and the processing efficiency is increased by 1 times. Measuring components such as torque motors, angle encoders and circular gratings are used to provide accurate position and speed feedback signals for the CNC system, ensuring high precision and high stability of the movement. Pneumatic clamps and wear-resistant rings are used to improve the accuracy and stability of the cradle-type CNC worktable during fixed-angle processing. A turntable bearing is also provided in the turntable component, which has high precision and compact structure, and can withstand axial loads, radial loads and overturning moments at the same time. The cradle components are symmetrical on the left and right, and are both equipped with motors. Dual power drive and symmetrical design are conducive to the configuration and transmission of force flow, and are conducive to improving the dynamic response capability of the cradle-type CNC rotary table. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional structural schematic diagram of a double-station cradle-type CNC rotary table provided by the present invention;

[0024] Figure 2 A schematic diagram of the front view structure of a double-station cradle-type CNC rotary table provided by the present invention;

[0025] Figure 3 A schematic diagram of the top view of the structure of a double-station cradle-type CNC rotary table provided by the present invention;

[0026] Figure 4A schematic diagram of the side structure of a double-station cradle-type CNC rotary table provided by the present invention;

[0027] Figure 5 for Figure 3 Schematic diagram of the cross-section structure along the AA direction;

[0028] Figure 6 for Figure 5 A schematic diagram of the local cross-sectional structure at position I in the middle;

[0029] Figure 7 for Figure 5 Schematic diagram of the local cross-section structure at II in the middle;

[0030] Figure 8 for Figure 2 Schematic diagram of the cross-sectional structure along direction BB.

[0031] In the attached drawings: 1000, cradle component; 1001, cradle central axis; 1002, cradle bearing; 1003, cradle flange one; 1004, cradle torque motor; 1005, cradle base; 1006, cradle flange two; 1007, cradle pneumatic clamp; 1008, cradle wear ring; 1009, nylon gasket; 1010, angle encoder hub; 1011, protective cover; 1012, first sealing ring; 1013, cradle oil seal retaining ring; 1014, cradle oil seal; 1015, angle encoder reading head; 2000, turntable component; 2001, turntable central axis; 2002, turntable bearing; 2003, turntable flange; 2004 , turntable torque motor; 2005, turntable base; 2006, turntable wear-resistant ring; 2007, turntable pneumatic clamp; 2008, circular grating fixing plate; 2009, circular grating fixed shaft; 2010, circular grating; 2011, circular grating rotating shaft; 2012, circular grating bearing; 2013, turntable rotating retaining ring; 2014, turntable oil seal; 2015, fifth sealing ring; 2016, sixth sealing ring; 2017, rotating shaft flange; 2018, turntable end face sealing cover; 2019, connecting seat; 2020, second sealing ring; 2021, turntable bottom cover; 2022, third sealing ring; 2023, fourth sealing ring; 2024, turntable side cover. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] The serial numbers of the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] See also Figures 1 to 8 The present invention discloses a double-station cradle-type CNC rotary table, comprising: a cradle component 1000 and a turntable component 2000, wherein the turntable component 2000 is arranged between two cradle components 1000 and connected to the two cradle components 1000, and the turntable component 2000 can be driven to rotate forward, reverse and stop at a specified angle along the A axis through the two cradle components 1000, and the turntable component 2000 has two independent processing stations, and the two processing stations respectively rotate forward, reverse and stop at a specified angle along the corresponding C1 axis and C2 axis, so as to control the spatial posture of the workpiece and realize five-sided processing in one clamping.

[0036] Optionally, in this embodiment, two cradle components 1000 are designed and are composed of the same parts.

[0037] Specifically, the cradle component 1000 includes a cradle central axis 1001, a cradle bearing 1002, a cradle flange 1 1003, a cradle torque motor 1004, a cradle base 1005, a cradle flange 2 1006, a cradle pneumatic clamp 1007 and a cradle wear ring 1008;

[0038] One end of the cradle central axis 1001 is connected to the turntable component 2000, the cradle bearing 1002 is sleeved on one end of the cradle central axis 1001, the cradle flange 1003 is sleeved on the outer periphery of the cradle central axis 1001 and close to the cradle bearing 1002, the cradle torque motor 1004 is sleeved on the outer periphery of the cradle flange 1003, the cradle base 1005 is sleeved on the outer periphery of the cradle torque motor 1004, the cradle flange 2 1006 is sleeved on the outer periphery of the cradle central axis 1001, the cradle flange 2 1006 is connected to the cradle base 1005, the cradle wear-resistant ring 1008 is sleeved on the cradle central axis 1001, and the cradle pneumatic clamp 1007 is sleeved on the outer periphery of the cradle wear-resistant ring 1008 and connected to the cradle flange 2 1006. In fact, the cradle pneumatic clamp 1007 and the cradle wear-resistant ring 1008 are located at the other end of the cradle central axis 1001.

[0039] Specifically, the cradle pneumatic clamp 1007 is connected to the cradle flange 1006 and fixed to the cradle base 1005 by screw connection. The cradle wear ring 1008 is fixed to the cradle central axis 1001 by screw connection.

[0040] Furthermore, the outer side of the cradle pneumatic clamp 1007 is wrapped with a protective cover 1011, and the protective cover 1011 is sleeved on the cradle central axis 1001. One end of the cradle central axis 1001 is sleeved with a cradle oil seal 1014, and the outer periphery of the cradle oil seal 1014 is sleeved with a cradle oil seal retaining ring 1013. The cradle oil seal retaining ring 1013 is connected to the cradle base 1005, and the cradle oil seal 1014 is connected to the cradle flange 1003.

[0041] Furthermore, the cradle central axis 1001 is provided with an angle encoder hub 1010. Figure 6 As shown, the angle encoder hub 1010 is fixed to the cradle center axis 1001 by screw connection.

[0042] Furthermore, if Figure 4 As shown, the protective cover 1011 is provided with an angle encoder reading head 1015. The angle encoder reading head 1015 is fixed to the protective cover 1011 by screw connection. When the cradle torque motor 1004 is working, the relative position and relative speed between the angle encoder hub 1010 and the angle encoder reading head 1015 provide accurate position and speed feedback signals for the numerical control system, ensuring high precision and high stability of the movement.

[0043] The cradle central axis 1001, the inner ring of the cradle bearing 1002, the cradle flange 1003, the rotor of the cradle torque motor 1004, the cradle wear ring 1008 and the angle encoder hub 1010 constitute the rotor system of the cradle component 1000. The cradle base 1005, the outer ring of the cradle bearing 1002, the stator of the cradle torque motor 1004, the cradle flange 2 1006, the cradle pneumatic clamp 1007, the protective cover 1011, the cradle oil seal 1014, the cradle oil seal retaining ring 1013 and the angle encoder reading head 1015 constitute the stator system of the cradle component 1000.

[0044] The cradle torque motor 1004 has forward rotation, reverse rotation and braking functions. The rotor system of the cradle component 1000 and the turntable component 2000 are connected to form a whole by screws through the connecting seat 2019. When the cradle torque motor 1004 is working, the rotor system of the turntable component 2000 and the cradle component 1000 rotates relative to the stator system of the cradle component 1000. The specific working conditions include forward rotation, reverse rotation and stopping at a specified rotation angle.

[0045] When the rotor system of the cradle component 1000 stops at a specified rotation angle, the cradle pneumatic clamp 1007 locks the cradle wear ring 1008, thereby locking the cradle center axis 1001, improving the accuracy and stability of the cradle-type CNC rotary table during fixed-angle processing.

[0046] like Figure 6 As shown, the nylon washer 1009 is fixed on the central axis 1001 of the cradle by screw connection, and some wires pass through it. When the rotor system of the cradle component 1000 rotates, the wires and the nylon washer 1009 rotate and contact. The material of the nylon washer 1009 is wear-resistant and soft, which helps to protect the wires from damage.

[0047] The cradle oil seal retaining ring 1013, the protective cover 1011 and the like constitute a protective device to prevent solid foreign matter from entering the cradle component 1000. The first seal ring 1012, the cradle oil seal 1014 and the second seal ring 2020 isolate pollutants such as fine dust and cutting fluid from the direction of the workpiece.

[0048] The turntable component 2000 includes a turntable base 2005, a connecting seat 2019 and a turntable mechanism;

[0049] Optionally, in this embodiment, one end of the cradle central axis 1001 of each of the cradle components 1000 is provided with a connecting seat 2019, both ends of the turntable base 2005 are connected to the connecting seat 2019 at the corresponding ends by screws, and the turntable base 2005 is provided with two turntable holes, and each of the turntable holes is equipped with a turntable mechanism.

[0050] Specifically, the turntable mechanism includes a turntable central axis 2001, a turntable bearing 2002, a turntable flange 2003, a turntable torque motor 2004, a turntable wear ring 2006, a turntable pneumatic clamp 2007, a circular grating installation mechanism and a circular grating 2010;

[0051] The turntable bearing 2002, the turntable flange 2003 and the turntable wear ring 2006 are connected along the Figure 7 The turntable wear ring 2006 is sleeved on the outer periphery of the turntable central axis 2001 from top to bottom, the turntable torque motor 2004 is sleeved on the outer periphery of the turntable flange 2003, the turntable pneumatic clamp 2007 is sleeved on the outer periphery of the turntable wear ring 2006, and the turntable base 2005 is sleeved on the outer periphery of the turntable torque motor 2004; wherein, the turntable wear ring 2006 is at a certain distance from the turntable flange 2003, and it can be considered that the turntable wear ring 2006 and the turntable bearing 2002 are distributed at both ends of the turntable central axis 2001, and the turntable flange 2003 is arranged close to the turntable bearing 2002. The specific setting adopts the step designed for the turntable central axis 2001 for clamping, which will not be described in detail here.

[0052] Specifically, the turntable pneumatic clamp 2007 is fixed on the turntable base 2005 by screw connection. The turntable wear ring 2006 is fixed on the turntable central axis 2001 by screw connection.

[0053] One end of the circular grating mounting mechanism is inserted into the turntable central axis 2001, and the other end of the circular grating mounting mechanism extends out of the turntable central axis 2001. The circular grating 2010 is mounted on the other end of the circular grating mounting mechanism, and the circular grating 2010 is arranged close to the turntable wear-resistant ring 2006.

[0054] Further, the circular grating installation mechanism includes a circular grating rotating shaft 2011, a circular grating fixing plate 2008, a circular grating fixing shaft 2009, a rotating shaft flange 2017 and a circular grating bearing 2012;

[0055] The circular grating fixed shaft 2009 is entirely located in the turntable central shaft 2001, the circular grating rotating shaft 2011 is entirely penetrated in the circular grating fixed shaft 2009, one end of the circular grating rotating shaft 2011 passes through the circular grating fixed shaft 2009 and is sleeved with the rotating shaft flange 2017, the other end of the circular grating rotating shaft 2011 extends out of the turntable central shaft 2001, the inner ring of the circular grating 2010 is mounted on the other end of the circular grating rotating shaft 2011, the outer ring of the circular grating 2010 is mounted on the circular grating fixed shaft 2009, the circular grating fixing plate 2008 is sleeved on the circular grating fixed shaft 2009, the circular grating bearing 2012 is mounted between the circular grating rotating shaft 2011 and the circular grating fixed shaft 2009, and a turntable end face sealing cover 2018 is also provided in the turntable central shaft 2001. The circular grating fixing plate 2008 and the circular grating bearing 2012 are both located at the circular grating 2010 .

[0056] The outer ring of the circular grating 2010 is fixed to the circular grating fixed shaft 2009 by screw connection, and the inner ring of the circular grating 2010 is fixed to the circular grating rotating shaft 2011 by screw connection. When the turntable torque motor 2004 is working, the relative position and relative speed between the outer ring of the circular grating 2010 and the inner ring of the circular grating 2010 provide accurate position and speed feedback signals for the numerical control system, ensuring high precision and high stability of movement.

[0057] Furthermore, the turntable mechanism also includes a turntable rotating retaining ring 2013 and a turntable oil seal 2014;

[0058] The turntable oil seal 2014 is sleeved on one end of the turntable center axis 2001 away from the circular grating 2010, and the turntable rotating retaining ring 2013 is sleeved on one end of the turntable center axis 2001 away from the circular grating 2010. A portion of the turntable oil seal 2014 is located in the turntable base 2005, and the portion of the turntable oil seal 2014 exposed from the turntable base 2005 is against the turntable rotating retaining ring 2013 and the turntable center axis 2001.

[0059] The turntable component 2000 has two stations, which are composed of the same parts. The rotation axis of the left station is the C1 axis, and the rotation axis of the right station is the C2 axis.

[0060] The turntable center axis 2001, the inner ring of the turntable bearing 2002, the turntable flange 2003, the rotor of the turntable torque motor 2004, the turntable wear-resistant ring 2006, the inner ring of the circular grating 2010, the circular grating rotating shaft 2011, the inner ring of the circular grating bearing 2012, the turntable rotating retaining ring 2013, the rotating shaft flange 2017 and the turntable end face sealing cover 2018 constitute the rotor system of the turntable component 2000.

[0061] The turntable base 2005, the outer ring of the turntable bearing 2002, the stator of the turntable torque motor 2004, the turntable pneumatic clamp 2007, the circular grating fixing plate 2008, the circular grating fixing shaft 2009, the outer ring of the circular grating 2010, and the outer ring of the circular grating bearing 2012 constitute the stator system of the turntable component 2000.

[0062] The turntable torque motor 2004 has forward, reverse and braking functions. When the turntable torque motor 2004 is working, the rotor system of the turntable component 2000 rotates relative to the stator system of the turntable component 2000. The specific working conditions include forward, reverse and stop at a specified rotation angle.

[0063] When the rotor system of the turntable component 2000 stops at a specified rotation angle, the turntable pneumatic clamp 2007 locks the turntable wear ring 2006, thereby locking the turntable center axis 2001, improving the accuracy and stability of the cradle-type CNC rotary table during fixed-angle processing.

[0064] The turntable rotating retaining ring 2013, the turntable end face sealing cover 2018, the turntable bottom cover 2021, the turntable side cover 2024, the fourth sealing ring 2023 and the like constitute a protective device to prevent solid debris from entering the turntable component 2000. The third sealing ring 2022, the fourth sealing ring 2023, the turntable oil seal 2014, the fifth sealing ring 2015, and the sixth sealing ring 2016 isolate pollutants such as fine dust and cutting fluid from the direction of the workpiece being processed. Among them, the connecting seat 219 is provided with a second sealing ring 2020.

[0065] On the two workstations of the turntable, one identical workpiece is clamped respectively. When the cradle torque motor 1004 is working, the rotor system of the cradle component 1000 carries the turntable component 2000 and the two workpieces clamped on the double workstations, and rotates around the A axis relative to the stator system of the cradle component 1000 at the same time. The specific working conditions include forward rotation, reverse rotation, and stopping at a specified rotation angle, so that the two workpieces are in the same A-axis rotation position.

[0066] When the turntable torque motor 2004 is working, the rotor system of the turntable component 2000, with the two workpieces clamped on the double workstations, rotates simultaneously around the C1 axis and the C2 axis relative to the stator system of the turntable component 2000. The specific working conditions include forward rotation, reverse rotation, and stopping at a specified rotation angle, so that the two workpieces are in the same C-axis rotation position and the same spatial posture.

[0067] When the cradle torque motor 1004 and the turntable torque motor 2004 work simultaneously, the two workpieces clamped on the double station are driven to rotate around the A axis, C1 axis, and C2 axis at the same time. The specific working conditions include forward rotation, reverse rotation, and stopping at a specified rotation angle. The workpiece can be in a specified spatial position to achieve five-sided processing in one clamping. At the same time, it is ensured that the two workpieces are in the same spatial position (except for the offset in the X-axis direction of the machine tool), so that the two workpieces can be clamped and processed on five sides at the same time, and the processing efficiency is increased by 1 times. Simply put, the double-station cradle-type CNC rotary table can clamp and process two workpieces at a time, and the processing efficiency is increased by 1 times.

[0068] The torque motor, angle encoder and circular grating 2010 and other measuring components are used to provide accurate position and speed feedback signals for the CNC system to ensure high precision and high stability of movement. The pneumatic clamp and wear-resistant ring mechanism are used to improve the precision and stability of the cradle-type CNC worktable during fixed angle processing.

[0069] The turntable base 2005, cradle base 1005 and connecting base 2019 adopt symmetrical design and reasonable rib plate layout, which improves the rigidity and stability of the double-station cradle CNC turntable.

[0070] Two cradle torque motors 1004 are used, which are arranged symmetrically on the left and right. The dual power drive and symmetrical design are beneficial to the configuration and transmission of the force flow and to improving the dynamic response capability of the cradle type CNC rotary table.

[0071] The turntable bearing 2002 is adopted, which has high precision and compact structure, and can bear axial load, radial load and overturning moment at the same time. The turntable base 2005 has a simple structure design, and the related parts are easy to install and maintain.

[0072] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A double-station cradle-type CNC rotary table, characterized in that: include: A cradle component and a turntable component, wherein the turntable component is arranged between the two cradle components and connected to the two cradle components, and the turntable component can be driven to rotate forward, reverse and stop at a specified angle along the A axis through the two cradle components. The turntable component has two independent processing stations, and the two processing stations respectively rotate forward, reverse and stop at a specified angle along the corresponding C1 axis and C2 axis, thereby controlling the spatial posture of the workpiece and realizing five-sided processing in one clamping.

2. The double-station cradle-type CNC rotary table according to claim 1 is characterized in that: The cradle components include a cradle central axis, a cradle bearing, a cradle flange 1, a cradle torque motor, a cradle base, a cradle flange 2, a cradle pneumatic clamp and a cradle wear ring; One end of the cradle central axis is connected to the turntable component, the cradle bearing is sleeved at one end of the cradle central axis, a set of cradle flanges is sleeved on the outer periphery of the cradle central axis and close to the cradle bearing, the cradle torque motor is sleeved on the outer periphery of the cradle flange one, the cradle base is sleeved on the outer periphery of the cradle torque motor, the cradle flange two is sleeved on the outer periphery of the cradle central axis, the cradle flange two is connected to the cradle base, the cradle wear-resistant ring is sleeved on the cradle central axis, and the cradle pneumatic clamp is sleeved on the outer periphery of the cradle wear-resistant ring and connected to the cradle flange two.

3. The double-station cradle-type CNC rotary table according to claim 2 is characterized in that: The outer side of the cradle pneumatic clamp is wrapped with a protective cover, and the protective cover is sleeved on the central axis of the cradle. One end of the central axis of the cradle is sleeved with a cradle oil seal, and the outer periphery of the cradle oil seal is sleeved with a cradle oil seal retaining ring, and the cradle oil seal retaining ring is connected to the cradle base, and the cradle oil seal is in contact with the cradle bearing.

4. The double-station cradle type CNC rotary table according to claim 3 is characterized in that: The other end of the central axis of the cradle is provided with an angle encoder hub.

5. The double-station cradle-type CNC rotary table according to claim 4 is characterized in that: An angle encoder reading head is arranged on the protection cover.

6. The double-station cradle-type CNC rotary table according to any one of claims 1 to 5, characterized in that: The turntable component includes a turntable base, a connecting seat and a turntable mechanism; A connecting seat is provided at one end of the central axis of the cradle of each cradle component, and both ends of the turntable base are connected to the connecting seats at the corresponding ends by screws. The turntable base is provided with two turntable holes, and a turntable mechanism is installed in each turntable hole.

7. The double-station cradle-type CNC rotary table according to claim 6 is characterized in that: The turntable mechanism includes a turntable central shaft, a turntable bearing, a turntable flange, a turntable torque motor, a turntable wear-resistant ring, a turntable pneumatic clamp, a circular grating installation mechanism and a circular grating; The turntable bearing, the turntable flange and the turntable wear-resistant ring are sequentially sleeved on the outer circumference of the turntable central axis, the turntable torque motor is sleeved on the outer circumference of the turntable flange, the turntable pneumatic clamp is sleeved on the outer circumference of the turntable wear-resistant ring, and the turntable base is sleeved on the outer circumference of the turntable torque motor; One end of the circular grating installation mechanism is inserted into the central axis of the turntable, and the other end of the circular grating installation mechanism extends out of the central axis of the turntable. The circular grating is installed at the other end of the circular grating installation mechanism, and the circular grating is arranged close to the wear-resistant ring of the turntable.

8. The double-station cradle-type CNC rotary table according to claim 7 is characterized in that: The circular grating installation mechanism comprises a circular grating rotating shaft, a circular grating fixing plate, a circular grating fixing shaft, a rotating shaft flange and a circular grating bearing; The circular grating fixed shaft is entirely located in the central shaft of the turntable, the circular grating rotating shaft is entirely passed through the circular grating fixed shaft, one end of the circular grating rotating shaft passes through the circular grating fixed shaft and is sleeved with the rotating shaft flange, the other end of the circular grating rotating shaft extends out of the central shaft of the turntable, the inner ring of the circular grating is mounted on the other end of the circular grating rotating shaft, the outer ring of the circular grating is mounted on the circular grating fixed shaft, the circular grating fixed plate is sleeved on the circular grating fixed shaft, the circular grating bearing is mounted between the circular grating rotating shaft and the circular grating fixed shaft, and a turntable end face sealing cover is also arranged in the central shaft of the turntable.

9. The double-station cradle-type CNC rotary table according to claim 7 is characterized in that: The turntable mechanism also includes a turntable rotating retaining ring and a turntable oil seal; The turntable oil seal is sleeved on one end of the turntable center axis away from the circular grating, the turntable rotating retaining ring is sleeved on one end of the turntable center axis away from the circular grating, a part of the turntable oil seal is located in the turntable base, and the part of the turntable oil seal exposed from the turntable base is against the turntable rotating retaining ring and the turntable center axis.

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