Rotary table capable of translating and indexing

Abstract

The invention relates to the technical field of industrial equipment, in particular to a rotary table capable of translating and indexing, which comprises a rack and an indexing plate arranged on the rack, a moving device for multi-axis movement of the indexing plate is arranged at the upper end of the rack, and a linkage device for driving the indexing plate to move up and down is arranged on the moving device. The linkage device is provided with a driving device used for driving the index plate to rotate. The moving device, the linkage device and the driving device are integrated on the rack, so that the indexing plate has the rotary indexing capacity, the multi-axis linear motion and the unique vertical lifting function are achieved, and the technical limitation that a traditional rotary table only supports single-axis translation is thoroughly broken through.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of industrial equipment, and in particular to a rotary table capable of translational indexing. BACKGROUND

[0002] The rotary table is a machine tool accessory with a rotatable table surface, which is mainly used for clamping workpieces and realizing rotary indexing positioning, so as to expand the machining capacity of the machine tool and realize multi-surface machining and precise positioning of complex parts. In the prior art, the core function mode of the mainstream product on the market is single linear shaft + single rotary shaft. The structure determines the capability boundary of the rotary table: it can only realize linear displacement of the workpiece in a fixed direction and rotary indexing around the shaft. The translational motion is one-dimensional and linear, and the adjustment height of the position of the workpiece in the horizontal plane depends on the single direction. Therefore, the application provides a rotary table capable of translational indexing to solve the technical problem. SUMMARY

[0003] In view of the deficiencies in the prior art, the application aims to provide a rotary table capable of translational indexing to solve the technical problem.

[0004] The above-mentioned purpose of the application is achieved by the following technical scheme: a rotary table capable of translational indexing, comprising a rack and an indexing disc arranged on the rack, wherein the upper end of the rack is provided with a moving device for multi-axis movement of the indexing disc, the moving device is provided with a linkage device for driving the indexing disc to move up and down, and the linkage device is provided with a driving device for driving the indexing disc to rotate.

[0005] By adopting the above technical scheme, the moving device, the linkage device and the driving device are integrated on the rack, so that the indexing disc not only has rotary indexing capability, but also realizes multi-axis linear motion and unique vertical lifting function, thereby completely breaking through the technical limitation of the traditional rotary table which only supports single-axis translation. The technical effect is that: firstly, the motion dimension is expanded from the traditional two-dimensional plane to three-dimensional space, so that the worktable itself becomes a complete motion unit integrating horizontal multi-axis movement, vertical lifting and precise rotation, and the workpiece can be clamped once to complete high-precision positioning and machining of complex polyhedrons, stepped surfaces and special-shaped curved surfaces. Secondly, the vertical adjustment function originally dependent on the main shaft of the machine tool is highly integrated in the accessory, so that the main structure of the machine tool can be directly simplified or the process capacity of the standard three-axis machine tool can be significantly enhanced. Thirdly, the introduction of the lifting function allows the relative position and attitude of the tool and the workpiece to be dynamically optimized during machining, thereby reducing the dependence on complex angle heads, enabling high-quality machining with simpler tools and better cutting paths, improving efficiency and reducing comprehensive cost.

[0006] Further, the mobile device comprises a first mobile rail fixedly connected to the rack, a first mobile frame is slidably arranged on the first mobile rail, a mobile plate is fixedly arranged on the first mobile frame, a second mobile rail is fixedly connected to the mobile plate, a second mobile frame is slidably arranged on the second mobile rail, and the mobile device is arranged on the second mobile frame.

[0007] By adopting the above technical scheme, the first mobile rail and the second mobile rail are arranged in a layered and nested manner in a perpendicular manner, and together constitute a precision mobile platform having two linear motion degrees of freedom in a horizontal plane.

[0008] The technical effect thereof is that: first, the structure realizes two-dimensional plane positioning of the index plate at any position in the horizontal plane, so that the rotation center can be accurately moved to the required X, Y coordinate point, thereby fundamentally solving the bottleneck of single-axis translation table positioning ability in the background technology, and providing an independent and complete hardware foundation for performing multi-eccentric machining, complex array drilling and other tasks. Second, the modular and orthogonal track layout makes the entire mobile device structure compact and strong, and the motion in two directions is decoupled and does not interfere with each other, ensuring that high straightness and positioning accuracy can be maintained during motion in any direction, and effectively controlling the cumulative error under multi-axis compound motion.

[0009] Further, the mobile device further comprises a first screw rod rotatably arranged in the first mobile rail, the first screw rod is threadedly connected with the first mobile frame, a first driving motor is fixedly connected to the first mobile rail, an output end of the first driving motor is fixedly connected with the first screw rod, a second screw rod is rotatably arranged in the second mobile rail, the second screw rod is threadedly connected with the second mobile frame, a second driving motor is fixedly connected to the second mobile rail, and an output end of the second driving motor is fixedly connected with the second screw rod.

[0010] By adopting the above technical scheme, the first driving motor drives the first screw rod to rotate, thereby accurately driving the first mobile frame and all components thereon to move linearly along the first mobile rail, constituting a first horizontal axial movement; at the same time, the second driving motor independently drives the second screw rod to rotate, thereby accurately driving the second mobile frame and the subsequent device arranged thereon to move linearly along the second mobile rail, constituting a second horizontal axial movement orthogonal to the first axial movement. The two motors are independently controlled, and the two screw rod transmission systems are separated from each other, thereby realizing independent driving and precise control of the two degrees of freedom motion of the workbench in the horizontal plane.

[0011] Firstly, the precision screw rod transmission driven by full electric drive is adopted, and the traditional manual or hydraulic drive mode is abandoned, so that the numerical control and automation of the two horizontal shafts are realized, the workbench can be seamlessly integrated with the machine tool CNC system, and complex two-dimensional plane positioning trajectories can be realized through programming instructions. Secondly, the independent driving mode of the double motors eliminates the transmission error and coupling interference caused by the linkage mechanism, ensures the high orthogonality and positioning independence between the X-axis and the Y-axis movement, and greatly improves the absolute accuracy and repeat positioning accuracy of two-dimensional positioning.

[0012] Further, the linkage device comprises a linkage plate fixedly connected to the upper end of the second moving frame, a push cylinder fixedly connected to the upper end of the linkage plate, a support rod fixedly connected to the upper end of the linkage plate, a support plate fixedly connected to the upper end of the support rod, the output end of the push cylinder upwardly penetrating through the support plate, a connecting plate fixedly connected to the output end of the push cylinder, and the driving device arranged on the connecting plate.

[0013] By adopting the above technical scheme, the linkage device constitutes a precision vertical movement unit directly driven by the push cylinder. The specific working process is as follows: when the working height needs to be adjusted, the piston rod of the push cylinder performs extension and retraction movement under the control of the gas, the piston rod directly drives the connecting plate fixedly connected to the output end of the piston rod, and drives the entire driving device and the index plate installed on the connecting plate to make accurate vertical linear motion along the rigid guide structure composed of the support rod and the support plate, so that the lifting positioning of the index plate is quickly realized.

[0014] Firstly, the push cylinder is used as the core driving element to realize the rapid response and strong driving of the vertical direction. The pneumatic transmission has the characteristics of fast action speed and large output thrust, which can meet the requirements of fast lifting of the workpiece or clamp and large locking force, and significantly improves the cycle pace and carrying capacity of the workbench. Secondly, a rigid guide frame with a large span is formed by the support rod and the support plate, which is arranged in parallel with the output shaft of the push cylinder, so that the connecting plate does not deflect or jam during lifting, effectively overcoming the radial swing defect of the cylinder itself, thereby ensuring the high straightness and stability of the vertical movement.

[0015] Further, the driving device comprises a driving frame fixedly connected to the connecting plate, a roller bearing fixedly arranged at the upper end of the driving frame, the inner side of the roller bearing and the index plate being fixedly connected, a driving motor fixedly connected inside the driving frame, a driving gear fixedly connected to the output end of the driving motor, and a driven gear fixedly connected to the inner side of the index plate and engaged with the driving gear.

[0016] By adopting the technical scheme, after the driving motor is started, the output shaft of the driving motor drives the driving gear to rotate; the driving gear is engaged with the driven gear fixed to the inner side of the index plate, so that the rotary motion of the motor is converted into the large torque and precise rotary motion of the index plate around the central shaft; the weight and radial load of the index plate are borne by the roller bearing installed on the upper end of the driving frame, so that the stability and precision of the rotary motion are ensured.

[0017] Firstly, the transmission mode of directly engaging the driving gear with the driven gear is adopted, the transmission chain is short, the structure is compact, the rigidity is high, the large torque can be effectively transmitted, the transmission gap is reduced, the response speed and positioning precision of the index plate during starting, stopping and reversing are ensured, and the precision machining scene requiring frequent indexing or micro-feeding is particularly suitable. Secondly, the use of the roller bearing provides strong radial and axial bearing capacity for the index plate, the high rigidity and high precision characteristics ensure that the rotary center remains stable when the index plate bears the weight of the eccentric workpiece or the machining lateral force, greatly reduces the eccentricity and vibration, and thus the machining quality is ensured.

[0018] Further, the moving plate is fixedly connected with a sliding rod at the bottom, and the sliding rod is rotatably provided with a sliding wheel at the bottom.

[0019] By adopting the above technical scheme, when the first moving frame drives the entire upper structure to move along the first moving track, the sliding wheel fixed to the bottom of the moving plate rolls synchronously in the sliding groove of the rack. This process provides additional auxiliary support for the moving plate and all upper components such as the second moving track, linkage device and driving device located in the middle of the moving part.

[0020] In the present application, the stress state of the long cantilever structure is effectively improved. The moving plate and the components above it form a long cantilever extending from the first moving track, which is prone to sagging or twisting deformation when carrying heavy objects or subjected to machining lateral force. The cooperation of the sliding wheel and the sliding groove provides reliable vertical support in the middle of the cantilever, and part of the load is directly transmitted to the solid rack, thereby significantly reducing the amount of sagging at the end of the moving plate due to deflection deformation.

[0021] Further, the sliding rod is provided with a plurality of groups of and uniformly distributed on the bottom of the moving plate, and the sliding groove is provided with a plurality of groups of and correspondingly arranged, and the sliding rod is further provided with a reinforcing device.

[0022] Further, the reinforcing device comprises reinforcing frames fixedly connected to both ends of the sliding rod, and the reinforcing frames are fixedly connected to the moving plate.

[0023] By adopting the technical scheme, a distributed and high-rigidity auxiliary support system is constructed by adopting the combination of multiple groups of uniformly distributed sliding rods and sliding grooves, and being provided with a reinforcing frame fixed at both ends.

[0024] Further, the linkage plate is fixedly connected with an extension frame at both ends, and the extension frame is provided with a ball at the bottom.

[0025] By adopting the technical scheme, first, when the linkage plate and the upper assembly are lifted by the push cylinder, the ball is in rolling contact with the surface of the moving plate, which provides low-friction and high-smooth lateral auxiliary support for the linkage plate during vertical movement, effectively shares the radial bending moment borne by the piston rod of the push cylinder, ensures the linearity and stability of the lifting movement, and significantly improves the service life and movement accuracy of the cylinder.

[0026] Further, the drive frame and the connecting plate are fixedly provided with a buffer spring.

[0027] In summary, the present application has the following beneficial technical effects: the present application integrates two orthogonal horizontal axis linear motions, one vertical axis lifting motion and one precise rotary axis motion. This makes the workbench itself become an independent motion platform with four numerical control degrees of freedom, which can independently complete the position adjustment and angle positioning of the workpiece in three-dimensional space. The effect is to realize one-time clamping, full-process machining of complex parts (such as multi-eccentric parts, stepped surface parts, space curved surfaces), completely eliminate the repeated positioning errors caused by multiple re-clamping, and greatly shorten the auxiliary time, and the machining precision and efficiency are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is the schematic diagram of the overall structure in the embodiment; Figure 2 is the schematic diagram of the structure after removing the index plate in the embodiment; Figure 3 is Figure 1 schematic diagram of the structure from another perspective.

[0029] Fig. 1 is a frame; 11 is a first moving track; 12 is a first lead screw; 13 is a first drive motor; 14 is a first moving frame; 141 is a moving plate; 15 is a second moving track; 16 is a second lead screw; 17 is a second drive motor; 2 is an index plate; 21 is a drive frame; 22 is a roller bearing; 23 is a drive motor; 24 is a drive gear; 25 is a driven gear; 3 is a sliding rod; 31 is a sliding wheel; 32 is a sliding groove; 4 is a linkage plate; 41 is a push cylinder; 42 is a support rod; 43 is a connecting plate; 44 is a buffer spring. DETAILED DESCRIPTION

[0030] The application will be further described in detail below with reference to the accompanying drawings.

[0031] Embodiment, refer to Figures 1-3 A pivotable indexing rotary table, comprising a frame 1 and an index plate 2 arranged on the frame 1, wherein the upper end of the frame 1 is provided with a moving device for multi-axis movement of the index plate 2, the moving device is provided with a linkage device for driving the index plate 2 to move up and down, and the linkage device is provided with a drive device for driving the index plate 2 to rotate. The application integrates the moving device, the linkage device and the drive device on the frame 1, so that the index plate 2 not only has the rotary indexing capability, but also realizes multi-axis linear motion and unique vertical lifting function, which completely breaks through the technical limitation of the traditional rotary table supporting single-axis translation. The technical effect is that: first, the motion dimension is expanded from the traditional two-dimensional plane to three-dimensional space, so that the worktable itself becomes a complete motion unit integrating horizontal multi-axis movement, vertical lifting and precise rotation, and the workpiece can be clamped once to complete the high-precision positioning and processing of complex polyhedron, stepped surface and special-shaped curved surface. Secondly, the vertical adjustment function originally dependent on the main shaft of the machine tool is highly integrated in the accessory, which can directly simplify the main structure of the machine tool or significantly enhance the process capability of the standard three-axis machine tool. Thirdly, the introduction of the lifting function allows the relative position and attitude of the tool and the workpiece to be dynamically optimized during processing, thereby reducing the dependence on complex angle heads, enabling high-quality processing with simpler tools and better cutting paths, improving efficiency and reducing overall cost.

[0032] The mobile device comprises a first mobile rail 11 fixedly connected to the rack 1, a first mobile frame 14 slidingly arranged on the first mobile rail 11, a mobile plate 141 fixedly arranged on the first mobile frame 14, a second mobile rail 15 fixedly connected to the mobile plate 141, and a second mobile frame slidingly arranged on the second mobile rail 15, wherein the mobile device is arranged on the second mobile frame.

[0033] The technical effects are as follows: firstly, the structure realizes two-dimensional plane positioning of the index plate 2 at any position in the horizontal plane, so that the rotation center can be accurately moved to the required X, Y coordinate point, which fundamentally solves the bottleneck of single-axis translation table positioning ability in the background art, and provides an independent and complete hardware foundation for performing multi-eccentric machining, complex array drilling and other tasks. Secondly, the modular and orthogonal track layout makes the entire mobile device structure compact and strong, and the motion in two directions is decoupled and does not interfere with each other, ensuring that high straightness and positioning accuracy can be maintained during motion in any direction, and effectively controlling the cumulative error under multi-axis compound motion.

[0034] The mobile device further comprises a first screw rod 12 rotatingly arranged in the first mobile rail 11, the first screw rod 12 being threadedly connected to the first mobile frame 14, a first driving motor 13 fixedly connected to the first mobile rail 11, an output end of the first driving motor 13 being fixedly connected to the first screw rod 12, a second screw rod 16 rotatingly arranged in the second mobile rail 15, the second screw rod 16 being threadedly connected to the second mobile frame, and a second driving motor 17 fixedly connected to the second mobile rail 15, an output end of the second driving motor 17 being fixedly connected to the second screw rod 16.

[0035] The first screw rod 12 is driven to rotate by the first driving motor 13, thereby accurately driving the first mobile frame 14 and all components thereon to move linearly along the first mobile rail 11, forming a first horizontal axial movement; at the same time, the second screw rod 16 is independently driven to rotate by the second driving motor 17, thereby accurately driving the second mobile frame and the subsequent device arranged thereon to move linearly along the second mobile rail 15, forming a second horizontal axial movement orthogonal to the first axial movement. The two motors are independently controlled, and the two screw rod transmission systems are separated from each other, realizing independent driving and precise control of the two degrees of freedom motion of the workbench in the horizontal plane.

[0036] First, the precision screw drive is driven by electricity, abandoning the traditional manual or hydraulic drive mode, realizing the numerical control and automation of two horizontal axes, so that the workbench can be seamlessly integrated with the CNC system of the machine tool, and complex two-dimensional plane positioning trajectories can be realized through programming instructions. Second, the independent driving mode of the double motor eliminates the transmission error and coupling interference caused by the linkage mechanism, ensuring high orthogonality and positioning independence between the X-axis and the Y-axis movement, and greatly improving the absolute accuracy and repeat positioning accuracy of two-dimensional positioning.

[0037] The linkage device comprises a linkage plate 4 fixedly connected to the upper end of the second moving frame, a push cylinder 41 fixedly connected to the upper end of the linkage plate 4, a support rod 42 fixedly connected to the upper end of the linkage plate 4, a support plate fixedly connected to the upper end of the support rod 42, the output end of the push cylinder 41 upwardly penetrating through the support plate, a connecting plate 43 fixedly connected to the output end of the push cylinder 41, and a driving device arranged on the connecting plate 43.

[0038] The linkage device constitutes a precise vertical movement unit directly driven by the push cylinder 41. The specific working process is as follows: when the working height needs to be adjusted, the piston rod of the push cylinder 41 performs extension and retraction movement under the control of the gas, the piston rod directly drives the connecting plate 43 fixedly connected to the output end of the push cylinder 41, and drives the entire driving device and the index plate 2 installed on the connecting plate 43 to make precise vertical linear motion along the rigid guide structure composed of the support rod 42 and the support plate, so as to quickly realize the lifting positioning of the index plate 2.

[0039] First, the push cylinder 41 is used as the core driving element to realize the rapid response and strong driving of the vertical direction. The pneumatic transmission has the characteristics of fast action speed and large output thrust, which can meet the requirements of fast lifting of workpieces or clamps and large locking force, and significantly improves the cycle pace and carrying capacity of the workbench. Second, a rigid guide frame with a large span is formed by the support rod 42 and the support plate, which is arranged in parallel with the output shaft of the push cylinder 41, so as to ensure that the connecting plate 43 does not deflect or jam during lifting, effectively overcoming the radial swing defect of the cylinder itself, thereby ensuring the high straightness and stability of the vertical movement.

[0040] The driving device comprises a driving frame 21 fixedly connected to the connecting plate 43, a roller shaft bearing 22 fixedly arranged at the upper end of the driving frame 21, the roller shaft bearing 22 being fixedly connected to the inner side of the index plate 2, a driving motor 23 fixedly connected inside the driving frame 21, a driving gear 24 fixedly connected to the output end of the driving motor 23, and a driven gear 25 fixedly connected to the inner side of the index plate 2 and engaged with the driving gear 24.

[0041] When the driving motor 23 is started, its output shaft drives the driving gear 24 to rotate; the driving gear 24 is engaged with the driven gear 25 fixed to the inner side of the index plate 2, so as to convert the rotary motion of the motor into the large torque and precise rotary motion of the index plate 2 around the center shaft; the weight and radial load of the index plate 2 are borne by the roller bearing 22 installed on the upper end of the driving frame 21, so as to ensure the stability and precision of the rotary motion.

[0042] Firstly, the driving gear 24 is directly engaged with the driven gear 25, so that the transmission chain is short, the structure is compact, the rigidity is high, the large torque can be effectively transmitted, the transmission gap is reduced, the response speed and positioning precision of the index plate 2 during starting, stopping and reversing are ensured, and the index plate 2 is particularly suitable for the precise machining scene which needs frequent indexing or micro-feeding. Secondly, the roller bearing 22 provides strong radial and axial bearing capacity for the index plate 2, the high rigidity and high precision characteristics of the roller bearing 22 ensure that the rotary center remains stable when the index plate 2 bears the weight of the eccentric workpiece or the machining lateral force, greatly reduces the eccentricity and vibration, and thus guarantees the machining quality.

[0043] The sliding rod 3 is fixedly connected to the bottom of the moving plate 141, the sliding wheel 31 is rotatably arranged at the bottom of the sliding rod 3, and the sliding groove 32 is arranged on the rack 1 and is in sliding connection with the sliding wheel 31. When the first moving frame 14 drives the whole upper structure to move along the first moving track 11, the sliding wheel 31 fixed to the bottom of the moving plate 141 rolls in the sliding groove 32 of the rack 1 synchronously. This process provides additional auxiliary support for the moving plate 141 and all upper components such as the second moving track 15, the linkage device and the driving device which are located in the middle of the moving part.

[0044] In the application, the stress state of the long cantilever structure is effectively improved. The moving plate 141 and the components above it form a long cantilever extending from the first moving track 11, which is prone to sagging or twisting deformation when bearing heavy objects or subjected to machining lateral force. The cooperation of the sliding wheel 31 and the sliding groove 32 provides reliable vertical support in the middle of the cantilever, directly transfers part of the load to the solid rack 1, and thus significantly reduces the amount of sagging at the end of the moving plate 141 due to deflection deformation.

[0045] In the embodiment, the sliding rod 3 is provided with multiple groups and uniformly distributed at the bottom of the moving plate 141, the sliding groove 32 is correspondingly provided with multiple groups, and the sliding rod 3 is further provided with a reinforcing device. The reinforcing device includes reinforcing frames fixedly connected to both ends of the sliding rod 3, and the reinforcing frames are fixedly connected to the moving plate 141.

[0046] A distributed, high-rigidity auxiliary support system is constructed by combining multiple sets of evenly distributed sliding rods 3 and sliding grooves 32, along with reinforcing frames fixed at both ends. The technical advantages are as follows: First, the even distribution of multiple support points achieves uniform load support for the moving plate 141 and the load above it, effectively avoiding localized stress concentration and deformation caused by insufficient support points, ensuring the straightness of the moving plate 141 throughout its long-stroke movement, and greatly improving motion stability. Second, the reinforcing frames rigidly fix both ends of the sliding rods 3 to the moving plate 141, combining the sliding rods 3, reinforcing frames, and moving plate 141 into a robust truss-like support structure. This not only significantly enhances the bending strength of the sliding rods 3 themselves, preventing them from bending under heavy loads, but also efficiently transfers and distributes the supporting force borne by the sliding wheels 31 to a larger area of ​​the moving plate 141, thereby greatly strengthening the overall rigidity and torsional resistance of the entire moving plate 141 assembly and suppressing structural deformation and vibration under complex working conditions.

[0047] In this embodiment, extension frames are fixedly connected to both ends of the linkage plate 4, and ball bearings are provided at the bottom of the extension frames. The ball bearings and the moving plate 141 are in rolling contact. First, when the push cylinder 41 drives the linkage plate 4 and the upper components to rise and fall, the ball bearings form rolling contact with the surface of the moving plate 141. This provides low-friction, high-smooth lateral auxiliary support for the linkage plate 4 during vertical movement, effectively sharing the radial bending moment borne by the piston rod of the push cylinder 41, ensuring the linearity and smoothness of the lifting and lowering movement, and significantly improving the service life and motion accuracy of the cylinder. Second, the contact between the ball bearings and the moving plate 141 forms a horizontal flexible constraint on the linkage plate 4, which can effectively suppress any slight shaking or drift that may occur in the horizontal plane of the linkage plate 4 and the heavy drive device above it. Especially when the worktable is moving horizontally at high speed or under processing force, this constraint ensures the positional repeatability and spatial posture stability of the indexing plate 2 rotation center during vertical movement. A buffer spring is fixedly provided between the drive frame 21 and the connecting plate.

[0048] The specific implementation process is as follows: First, the first and second drive motors 17 drive the corresponding lead screws, which drive the first moving frame 14 and the second moving frame to move precisely along mutually perpendicular tracks, positioning the rotation center of the indexing plate 2 to the target X and Y coordinates. During this process, the sliding wheel 31 rolls in the sliding groove 32 of the frame 1, and the rigid support system composed of multiple sets of sliding rods 3 and the reinforcing frame ensures that the moving plate 141 is stable and free from deformation throughout the process. Subsequently, if height adjustment is required, the cylinder 41 is pushed to move, and its piston rod drives the connecting plate and the entire upper part to move vertically up and down along the guide structure of the support rod 42 and the support plate. At the same time, the ball bearings at the bottom of the extension frame roll into contact with the moving plate 141 to provide lateral auxiliary support and constraint. When the indexing plate 2 reaches the preset spatial position (X, Y, Z), the drive motor 23 drives the indexing plate 2 and the workpiece to rotate precisely to the specified angle (C-axis) through the gear pair. The load is borne by the roller bearing 22, and the buffer spring absorbs the axial impact during start-up and shutdown. Finally, during processing, the axes of the worktable can be linked with the machine tool spindle in a multi-axis manner to complete the cutting of complex trajectories. After one process is completed, the worktable quickly positions itself to the next station according to instructions for cyclical operation. Once all processes are completed, each axis automatically resets. The entire process enables high-precision composite machining of multiple surfaces, positions, and angles of the workpiece in a single clamping, significantly improving process flexibility and efficiency.

[0049] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rotary worktable with translational indexing capability, characterized in that, It includes a frame (1) and an indexing plate (2) mounted on the frame (1). The upper end of the frame (1) is provided with a moving device for multi-axis movement of the indexing plate (2). The moving device is provided with a linkage device for driving the indexing plate (2) to move up and down. The linkage device is provided with a drive device for driving the indexing plate (2) to rotate.

2. The rotary table with translational indexing according to claim 1, characterized in that, The mobile device includes a first moving track (11) fixedly connected to the frame (1), a first moving frame (14) slidably disposed on the first moving track (11), a moving plate (141) fixedly disposed on the first moving frame (14), a second moving track (15) fixedly connected to the moving plate (141), a second moving frame slidably disposed on the second moving track (15), and the mobile device disposed on the second moving frame.

3. The rotary table with translational indexing according to claim 2, characterized in that, The moving device further includes a first lead screw (12) rotatably connected inside the first moving track (11), the first lead screw (12) and the first moving frame (14) being threadedly connected, a first drive motor (13) being fixedly connected on the first moving track (11), the output end of the first drive motor (13) being fixedly connected to the first lead screw (12), a second lead screw (16) rotatably provided inside the second moving track (15), the second lead screw (16) being threadedly connected to the second moving frame, a second drive motor (17) being fixedly connected on the second moving track (15), the output end of the second drive motor (17) being fixedly connected to the second lead screw (16).

4. The rotary table with translational indexing according to claim 3, characterized in that, The linkage device includes a linkage plate (4) fixedly connected to the upper end of the second movable frame. A push cylinder (41) is fixedly connected to the upper end of the linkage plate (4). A support rod (42) is fixedly connected to the upper end of the linkage plate (4). A support plate is fixedly connected to the upper end of the support rod (42). The output end of the push cylinder (41) faces upward and passes through the support plate. A connecting plate (43) is fixedly connected to the output end of the push cylinder (41). The driving device is set on the connecting plate (43).

5. The rotary table with translational indexing according to claim 4, characterized in that, The driving device includes a drive frame (21) fixedly connected to the connecting plate (43). A roller bearing (22) is fixedly installed on the upper end of the drive frame (21). The inner side of the roller bearing (22) is fixedly connected to the indexing plate (2). A drive motor (23) is fixedly connected inside the drive frame (21). A drive gear (24) is fixedly connected to the output end of the drive motor (23). A driven gear (25) that meshes with the drive gear (24) is fixedly connected to the inner side of the indexing plate (2).

6. The rotary table with translational indexing according to claim 3, characterized in that, The bottom of the movable plate (141) is fixedly connected to a sliding rod (3), and a sliding wheel (31) is rotatably provided at the bottom of the sliding rod (3). A sliding groove (32) is provided on the frame (1) and is slidably connected to the sliding wheel (31).

7. A rotary worktable with translational indexing according to claim 6, characterized in that, The sliding rod (3) is provided in multiple sets and evenly distributed at the bottom of the moving plate (141), and the sliding groove (32) is provided in multiple sets accordingly. The sliding rod (3) is also provided with a reinforcing device.

8. A rotary table with translational indexing according to claim 7, characterized in that, The strengthening device includes a strengthening frame fixedly connected to both ends of the sliding rod (3), and the strengthening frame is fixedly connected to the moving plate (141).

9. A rotary table with translational indexing according to claim 4, characterized in that, The linkage plate (4) is fixedly connected to both ends of an extension frame (45), and a ball bearing (46) is provided at the bottom of the extension frame (45). The ball bearing (46) and the moving plate (141) are in rolling contact.

10. A rotary table with translational indexing according to claim 5, characterized in that, A buffer spring (44) is fixedly installed between the drive frame (21) and the connecting plate (43).

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