Biaxial direct drive cradle type numerical control rotary table assembly

Abstract

The utility model discloses a double -shaft direct -drive cradle formula numerical control rotary table subassembly, include: support frame, cradle formula rotary table, cradle formula rotary table rotation setting in the inside of support frame, the beneficial effect of the utility model is: through having joined the spacing installation piece, no. 2 fixed screw rod, spacing installation groove and no. 1 mounting hole, realized the cooperation between multiple spacing installation pieces of rotary support top and spacing installation groove, the cooperation between no. 2 fixed screw rod and no. 1 mounting hole, then installs no. 1 gasket, internal thread cover on no. 2 fixed screw rod, installs and fixes the installation support on the rotary support, and the spacing nut, no. 2 gasket are installed on the outside thread of no. 1 fixed screw rod, install and fix between no. 2 outer fixed ring and no. 1 outer fixed ring, ensure the installation stability between rotary support and installation support, set up the protective cover, and the protective cover is limitedly installed in the inside of top groove, and the top groove is protected and handled.

Description

Technical Field

[0001] This utility model relates to the technical field of CNC rotary table components, specifically a dual-axis direct-drive cradle-type CNC rotary table component. Background Technology

[0002] In modern manufacturing, the CNC rotary table, as a key functional component of CNC machine tools, plays a vital role in realizing the multi-faceted and multi-process machining of complex parts. It enables the workpiece to achieve precise indexing, rotation, and positioning during the machining process, thereby meeting the machining requirements of parts with different shapes and sizes. During the installation of the CNC rotary table, traditional installation methods often fail to ensure the installation stability between the rotary table and the machine tool components. The rotary table may generate slight vibrations and displacements during operation, which can affect machining accuracy, especially when performing high-precision machining. Utility Model Content

[0003] The purpose of this utility model is to provide a dual-axis direct-drive cradle-type CNC rotary table assembly to solve the problem mentioned in the background art that, during the installation of CNC rotary tables, traditional installation methods often fail to ensure the installation stability between the rotary table and machine tool components. The rotary table may generate slight vibrations and displacements during operation, which will affect the machining accuracy, especially when performing high-precision machining, where this effect is more pronounced.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a dual-axis direct-drive cradle-type CNC rotary table assembly, comprising:

[0005] Support frame;

[0006] Cradle-type turntable, the cradle-type turntable is rotatably mounted on the inside of the support frame;

[0007] A rotating support is mounted on top of the cradle-type turntable.

[0008] Limiting mounting blocks are equidistantly arranged on the top of the rotating support, and a second fixing screw is provided on the top of the limiting mounting blocks;

[0009] The mounting bracket is installed on top of the rotating bracket;

[0010] A limiting installation groove is provided at equal intervals at the bottom of the mounting support, and the limiting installation groove cooperates with the limiting installation block;

[0011] Mounting hole No. 1 is located inside the limiting mounting groove, and mounting hole No. 1 is engaged with fixing screw No. 2.

[0012] Top grooves are equidistantly formed on the top of the mounting support, and the top grooves are connected to the first mounting hole;

[0013] The first washer is fitted onto the outside of the second fixing screw, and the outer thread of the second fixing screw is fitted with an internal thread cap.

[0014] An external mounting structure is placed outside the rotating support and the mounting support.

[0015] As a preferred embodiment of this utility model: the external mounting structure includes a first outer fixing ring, a first fixing screw, a second outer fixing ring, and a second mounting hole. The outer fixing ring is fixedly connected to the outer side of the rotating support. Multiple first fixing screws are fixedly connected at equal intervals to the top of the first outer fixing ring. The second outer fixing ring is fixedly connected to the outer side of the mounting support. Multiple second mounting holes that mate with the first fixing screws are opened at equal intervals inside the second outer fixing ring. A limit nut is installed on the outer thread of the first fixing screw.

[0016] As a preferred embodiment of this utility model: a second direct drive motor is installed inside the cradle-type turntable, and the output end of the second direct drive motor is connected to the rotating support. A first direct drive motor is installed inside the support frame, and the output end of the first direct drive motor is connected to the cradle-type turntable.

[0017] As a preferred embodiment of this utility model: a second washer is sleeved on the outer side of the first fixing screw, and the second washer is located below the limiting nut.

[0018] As a preferred embodiment of this utility model: the top of the internal threaded cover is provided with an internal hexagonal groove, a protective cover that mates with the top groove is provided above the internal threaded cover, and an annular protective cover that mates with the second outer fixing ring and the first outer fixing ring is installed on the outside of the mounting support.

[0019] As a preferred embodiment of this utility model, it further includes a linear module, which is placed below the support frame, and the movable slide of the linear module is connected to the support frame.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by adding a limiting mounting block, a second fixing screw, a limiting mounting groove, and a first mounting hole, achieves the cooperation between multiple limiting mounting blocks and the limiting mounting groove on the top of the rotating support, and the cooperation between the second fixing screw and the first mounting hole. Then, the first washer and the internal thread cover are installed on the second fixing screw, and the mounting support is installed and fixed on the rotating support. Combined with the limiting nut and the second washer installed on the outer thread of the first fixing screw, the second outer fixing ring and the first outer fixing ring are installed and fixed, ensuring the installation stability between the rotating support and the mounting support. By setting a protective cover, which is limited and installed on the inner side of the top groove, the top groove is protected. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a disassembly diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the disassembly structure of the rotating support and mounting support of this utility model;

[0024] Figure 4 This is a schematic diagram of the No. 1 outer fixing ring and the No. 2 fixing screw of this utility model;

[0025] Figure 5 This is a schematic diagram of the limiting mounting groove and the first mounting hole of this utility model.

[0026] In the diagram: 1. Support frame; 2. Cradle-type turntable; 3. Direct drive motor No. 1; 4. Direct drive motor No. 2; 5. Rotating support; 6. Outer fixing ring No. 1; 7. Fixing screw No. 1; 8. Mounting support; 9. Limiting mounting block; 10. Fixing screw No. 2; 11. Limiting mounting groove; 12. Mounting hole No. 1; 13. Linear module; 14. Top groove; 15. Washer No. 1; 16. Internal threaded cap; 17. Socket hexagonal groove; 18. Protective cover; 19. Outer fixing ring No. 2; 20. Mounting hole No. 2; 21. Washer No. 2; 22. Limiting nut. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1 to 5This utility model provides a technical solution: a dual-axis direct-drive cradle-type CNC rotary table assembly, comprising: a support frame 1; a cradle-type rotary table 2 rotatably disposed inside the support frame 1; a rotating support 5 rotatably disposed on the top of the cradle-type rotary table 2; limiting mounting blocks 9 are equidistantly fixed to the top of the rotating support 5, and a second fixing screw 10 is fixedly connected to the top of the limiting mounting blocks 9; a mounting support 8 is mounted on the top of the rotating support 5; and limiting mounting grooves 11 are equidistantly formed at the bottom of the mounting support 8, limiting... Mounting groove 11 mates with limiting mounting block 9; mounting hole 12 is opened inside limiting mounting groove 11, and mounting hole 12 mates with fixing screw 10; top groove 14 is opened at equal intervals on top of mounting support 8, and top groove 14 is connected to mounting hole 12; gasket 15 is sleeved on the outside of fixing screw 10, and internal thread cap 16 is threaded on the outside of fixing screw 10; external mounting structure is placed on the outside of rotating support 5 and mounting support 8.

[0029] It should be noted that, in this embodiment, when the mounting support 8 is installed on the rotating support 5, the multiple limiting mounting blocks 9 on the top of the rotating support 5 cooperate with the limiting mounting groove 11 at the bottom of the mounting support 8 for limiting. The multiple first fixing screws 7 on the top of the first outer fixing ring 6 cooperate with the multiple second mounting holes 20 opened in the second outer fixing ring 19. The second fixing screw 10 on the top of the limiting mounting block 9 passes through the first mounting hole 12 and enters the top groove 14. The first washer 15 is sleeved on the outside of the second fixing screw 10. Then, using a tool, the internal thread cap 16 is threaded onto the top of the second fixing screw 10 through the internal hexagonal groove 17. The second washer 21 is sleeved on the first fixing screw 7. The limiting nut 22 is threaded onto the outside of the first fixing screw 7. Then, the protective cover 18 is installed in the top groove 14. A sealing ring that cooperates with the top groove 14 is provided on the outside of the protective cover 18. The top groove 14 is sealed. An annular protective cover is installed on the outside of the mounting platform 8 to cooperate with the second outer fixing ring 19 and the first outer fixing ring 6. The annular protective cover protects the first fixing screw 7, the second washer 21, the limit nut 22, and the second mounting hole 20. A sealing ring is provided on the inside of the annular protective cover to seal and protect the first fixing screw 7 and the limit nut 22. The mounting platform 8 is fixedly installed on the rotating platform 5. The output end of the first direct drive motor 3 drives the cradle turntable 2, the second direct drive motor 4, the rotating platform 5, and the mounting platform 8 to rotate and adjust. The output end of the second direct drive motor 4 drives the rotating platform 5 and the mounting platform 8 to adjust the rotation angle. The moving slide of the linear module 13 drives the support frame 1 to move as a whole, and the overall position of the cradle turntable 2, the rotating platform 5, and the mounting platform 8 is adjusted.

[0030] During installation, thread-locking adhesive should be applied to the No. 1 fixing screw 7, No. 2 washer 21, limit nut 22, No. 2 fixing screw 10, No. 1 washer 15, and internal thread cap 16 to prevent the screw from loosening due to vibration. The type of thread-locking adhesive is Loctite 243.

[0031] The specific architecture and operation logic of the direct drive motor and the linear module 13 achieving coordinated control through an external controller in this application are consistent with the existing technology in this field. This control method has been maturely applied in many similar industrial scenarios, so it will not be discussed in detail here.

[0032] The linear module 13 includes a bracket for mounting the guide rail, a movable slide that slides on the guide rail, a lead screw system consisting of a lead screw and a nut, and a servo motor that drives the lead screw. The nut is connected to the movable slide, and the servo motor drives the lead screw to rotate. The rotation is converted into linear motion by the lead screw and nut, which drives the slide to move. It is also equipped with a protective cover to protect the internal components from dust and impurities, extend service life, and ensure operating accuracy. The helical motion of the lead screw and nut can convert rotational motion into linear motion, which drives the lead screw to rotate through the servo motor. The lead screw drives the movable slide to move on the guide rail.

[0033] In one embodiment, such as Figures 1 to 5 As shown, the external mounting structure includes a first external fixing ring 6, a first fixing screw 7, a second external fixing ring 19, and a second mounting hole 20. The first external fixing ring 6 is fixed to the outer side of the rotating support 5. Multiple first fixing screws 7 are fixed to the top of the first external fixing ring 6 at equal intervals. The second external fixing ring 19 is welded and fixed to the outer side of the mounting support 8. Multiple second mounting holes 20 that mate with the first fixing screws 7 are opened at equal intervals inside the second external fixing ring 19. A limit nut 22 is threaded on the outer side of the first fixing screw 7.

[0034] It should be noted that in this embodiment, multiple No. 1 fixing screws 7, which are equidistantly fixed to the top of the No. 1 outer fixing ring 6 on the outer side of the rotating support 5, are positioned and engaged with multiple No. 2 mounting holes 20 opened in the No. 2 outer fixing ring 19. Then, the limiting nut 22 is threaded on the outer side of the No. 1 fixing screw 7 to install and fix the No. 2 outer fixing ring 19 and the No. 1 outer fixing ring 6, thereby improving the installation stability between the mounting support 8 and the rotating support 5.

[0035] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, a second direct drive motor 4 is installed inside the cradle-type turntable 2. The output end of the second direct drive motor 4 is connected to the rotating support 5. A first direct drive motor 3 is installed inside the support frame 1. The output end of the first direct drive motor 3 is connected to the cradle-type turntable 2.

[0036] It should be noted that in this embodiment, a dual-motor collaborative control architecture is adopted, in which the No. 1 direct drive motor 3 directly drives the cradle-type turntable 2 and the No. 2 direct drive motor 4 independently drives the rotating support 5, thereby eliminating the mechanical backlash of the traditional transmission chain and achieving high-precision dynamic response.

[0037] In one embodiment, such as Figure 4 As shown, a second washer 21 is sleeved on the outside of the first fixing screw 7, and the second washer 21 is located below the limiting nut 22.

[0038] It should be noted that in this embodiment, the setting of the second gasket 21 effectively suppresses the loosening caused by vibration, ensuring the long-term stability of the key connection parts.

[0039] In one embodiment, such as Figures 1 to 4 As shown, the top of the internal threaded cover 16 is provided with an internal hexagonal groove 17, and a protective cover 18 that mates with the top groove 14 is provided above the internal threaded cover 16. An annular protective cover that mates with the second outer fixing ring 19 and the first outer fixing ring 6 is installed on the outside of the mounting bracket 8.

[0040] It should be noted that in this embodiment, the internal components of the top groove 14 are protected by the protective cover 18, and the first fixing screw 7, the second washer 21, and the limiting nut 22 are protected by the annular protective cover.

[0041] In one embodiment, such as Figure 1 and Figure 2 As shown, it also includes a linear module 13, which is placed below the support frame 1, and the movable slide of the linear module 13 is connected to the support frame 1.

[0042] It should be noted that in this embodiment, the position of the support frame 1 is adjusted by the moving slide of the linear module 13.

[0043] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-axis direct-drive cradle-type CNC rotary table assembly, characterized in that, include: Support frame (1); Cradle-type turntable (2) is rotatably mounted on the inside of the support frame (1); Rotary support (5) is rotatably mounted on top of cradle-type turntable (2); Limiting mounting blocks (9) are equidistantly arranged on the top of the rotating support (5), and the top of the limiting mounting blocks (9) is provided with a second fixing screw (10). Mounting support (8) is mounted on top of rotating support (5); Limiting mounting grooves (11) are equidistantly provided at the bottom of the mounting support (8), and the limiting mounting grooves (11) cooperate with the limiting mounting blocks (9); Mounting hole 1 (12) is opened inside the limiting mounting groove (11), and mounting hole 1 (12) is engaged with fixing screw 2 (10); Top groove (14) is equidistantly opened on the top of the mounting support (8), and the top groove (14) is connected to the first mounting hole (12); The first gasket (15) is sleeved on the outside of the second fixing screw (10), and the outer thread of the second fixing screw (10) is fitted with an internal thread cap (16). An external mounting structure is placed outside the rotating support (5) and the mounting support (8).

2. The dual-axis direct-drive cradle-type CNC rotary table assembly according to claim 1, characterized in that: The external mounting structure includes a first external fixing ring (6), a first fixing screw (7), a second external fixing ring (19), and a second mounting hole (20). The first external fixing ring (6) is fixed to the outside of the rotating support (5). Multiple first fixing screws (7) are fixed at equal intervals to the top of the first external fixing ring (6). The second external fixing ring (19) is fixed to the outside of the mounting support (8). Multiple second mounting holes (20) that cooperate with the first fixing screw (7) are opened at equal intervals inside the second external fixing ring (19). A limit nut (22) is threaded on the outside of the first fixing screw (7).

3. The dual-axis direct-drive cradle-type CNC rotary table assembly according to claim 1, characterized in that: The cradle turntable (2) is equipped with a second direct drive motor (4), the output end of which is connected to the rotating support (5). The support frame (1) is equipped with a first direct drive motor (3), the output end of which is connected to the cradle turntable (2).

4. The dual-axis direct-drive cradle-type CNC rotary table assembly according to claim 2, characterized in that: A second washer (21) is fitted on the outside of the first fixing screw (7), and the second washer (21) is located below the limiting nut (22).

5. The dual-axis direct-drive cradle-type CNC rotary table assembly according to claim 1, characterized in that: The top of the internal threaded cover (16) is provided with an internal hexagonal groove (17), and a protective cover (18) that cooperates with the top groove (14) is provided above the internal threaded cover (16). An annular protective cover that cooperates with the second outer fixing ring (19) and the first outer fixing ring (6) is installed on the outside of the mounting support (8).

6. The dual-axis direct-drive cradle-type CNC rotary table assembly according to claim 1, characterized in that: It also includes a linear module (13), which is placed below the support frame (1), and the movable slide of the linear module (13) is connected to the support frame (1).

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