Nut seat constrained vertical use modular rotating platform device for machine tool and machine tool and measuring equipment thereof

By designing a modular rotating platform device constrained by a nut seat, the problems of single installation and position adjustment of the vertical axis of the machine tool were solved, realizing multi-degree-of-freedom motion and low-cost five-degree-of-freedom machining, and improving the compatibility and precision of the machine tool.

CN223699998UActive Publication Date: 2025-12-23XI AN JIAOTONG UNIV +1
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Patent Information

Application Number
CN202520274251.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2025-12-23
Estimated Expiration
2035-02-20

AI Technical Summary

Technical Problem

Existing machine tools have a single vertical axis mounting size, making it difficult to adjust the relative position, resulting in limited freedom, poor compatibility, and high cost, which makes it difficult to meet the low-cost requirements of the manufacturing industry.

Method used

Design a modular rotating platform device for vertical use with nut seat constraint, including base, slider, servo motor, lead screw, nut, slide block, rotating platform adjustment device, etc., to achieve multi-degree-of-freedom motion, and simplify the installation process through the use of symmetrical structure and adjustment blocks.

Benefits of technology

It increases the machine tool's motion flexibility and installation accuracy, adapts to various specifications of actuators, reduces costs, and achieves five-degree-of-freedom machining capabilities.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a nut seat constrained vertical use modular rotating platform device for a machine tool, the machine tool and measuring equipment thereof, and is characterized in that a base is provided with a guide rail; the sliding block is movably connected with the guide rail. The servo motor is connected with the base through a motor base. The lead screw is connected with the servo motor to rotate; the nut is connected with the lead screw and moves linearly under the constraint of the nut seat, the ram is connected with the nut and the sliding block so as to move linearly on the guide rail, the rotating platform adjusting device is installed on the ram, the rotary table installation plate is fixed to the ram, the rotary table is movably connected with the rotary table installation plate, and the adjusting blocks are distributed around the rotary table installation plate. The adjusting screw is movably connected with the adjusting block to abut against the rotary table.
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Description

Technical Field

[0001] This utility model relates to the field of precision machining technology, and in particular to a modular rotating platform device for vertical use of nut seat constraint for machine tools, and the machine tool and measuring equipment thereof. Background Technology

[0002] The vertical axis of a machine tool, used as the machining axis, is employed to mount machining execution units and typically only includes one degree of freedom: vertical linear motion. This has certain limitations, such as... Figure 1 As shown, the main problems are: 1. The actuator can only move up and down along the Z-axis, achieving one degree of freedom, thus limiting the range of motion; 2. The interface between the actuator and the vertical axis is fixed; if one part is changed, the other part must be adapted, resulting in poor compatibility; 3. The relative position between the actuator and the vertical axis is difficult to adjust. Existing technologies suffer from problems such as a single vertical axis mounting size, difficulty in adjusting the relative position, and limited degrees of freedom. Furthermore, the manufacturing industry has cost constraints on any technological upgrades; excessively high costs are detrimental to cost reduction. How to achieve a simple and low-cost solution to overcome the aforementioned problems of existing technologies is a pressing issue for the manufacturing industry.

[0003] The information disclosed in the background section is only intended to enhance the understanding of the background of this utility model, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] In order to solve the above-mentioned technical problems in the prior art, this utility model proposes a vertical modular rotating platform device for constraining the nut seat of a machine tool, a machine tool and a measuring device. Its installation dimensions are diverse, the relative position is easy to adjust, the execution unit has many degrees of freedom, and the structure is simple.

[0005] The objective of this invention is achieved through the following technical solution: a modular rotating platform device for vertical use with nut seat constraint in machine tools, comprising,

[0006] The base is equipped with guide rails;

[0007] A slider, which is movably connected to the guide rail,

[0008] A servo motor, which is connected to the base via a motor mount;

[0009] A lead screw, which is connected to the servo motor for rotary motion;

[0010] A nut, which connects to the lead screw and moves linearly under the constraint of the nut seat.

[0011] A ram, which connects the nut and the slider, allows for linear movement on the guide rail.

[0012] A rotating platform adjustment device, which is installed on the slide block, includes...

[0013] The turntable mounting plate is fixed to the slide block.

[0014] A turntable, which is movably connected to the turntable mounting plate,

[0015] Multiple adjustment blocks are distributed around the turntable mounting plate.

[0016] Multiple adjusting screws, movably connected to the adjusting block to abut against the turntable, wherein...

[0017] The modular rotating platform device for vertical use of the nut seat constraint of the machine tool is perpendicular to the bed of the machine tool.

[0018] In the modular rotating platform device for vertical use constraining the nut seat of a machine tool, the bottom of the slide is provided with a T-slot, and the rotating platform adjustment device is fixed in the T-slot.

[0019] In the aforementioned modular rotary platform device for vertical use with nut seat constraint for machine tools, the rotary table is equipped with an execution unit.

[0020] In the aforementioned modular rotary platform device for vertical use with nut seat constraint for machine tools, the execution unit includes a laser head.

[0021] In the aforementioned modular rotary platform device for vertical use with nut seat constraint for machine tools, multiple adjustment blocks are symmetrically distributed around the rotary table mounting plate with the rotary table as the center.

[0022] In the vertical modular rotating platform device for constraining the nut seat of a machine tool, the base is provided with a pair of parallel guide rails, the extension direction of which is parallel to the extension direction of the lead screw.

[0023] In the vertical modular rotating platform device for constraining the nut seat of a machine tool, a pair of parallel guide rails are symmetrically distributed on both sides of the lead screw.

[0024] In the aforementioned modular rotating platform device for vertical use of machine tool nut seat constraint, the modular rotating platform device for vertical use of machine tool nut seat constraint has a symmetrical structure.

[0025] This utility model also discloses a machine tool, including a vertically used modular rotating platform device according to the nut seat constraint for the machine tool.

[0026] This utility model also discloses a measuring device, including the aforementioned modular rotating platform device for vertical use of nut seat constraint for machine tools and a measuring sensor mounted on the rotating platform.

[0027] Compared with the prior art, this utility model has the following advantages: the execution unit is installed on the turntable, which can increase the rotational degree of freedom and make the movement more flexible; it can also adapt to the installation of execution units of various specifications; the addition of a relative position adjustment device between the turntable and the slide allows the turntable to be adjusted in all directions relative to the slide, which is beneficial to improving the installation accuracy, and the overall solution is simple, which makes this utility model low in cost; when the vertical modular rotary platform device for constraining the nut seat of the machine tool is used as a component of the machine tool, it can achieve five-degree-of-freedom machining by being perpendicular to the machine tool bed. Attached Figure Description

[0028] Various other advantages and benefits of this invention will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention. Obviously, the drawings described below are merely some embodiments of this invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. Furthermore, the same reference numerals denote the same parts throughout the drawings.

[0029] In the attached diagram:

[0030] Figure 1 This is a structural schematic diagram of a prior art rotating platform device;

[0031] Figure 2 This is a structural schematic diagram of a vertically used modular rotating platform device for constraining a nut seat on a machine tool, according to an embodiment of the utility model.

[0032] Figure 3 This is an exploded view of a modular rotating platform device for vertical use with nut seat constraint for a machine tool, according to an embodiment of the utility model.

[0033] Figure 4 This is a schematic diagram of the structure of a rotating platform adjustment device for a vertically used modular rotating platform device for constraining a nut seat in a machine tool, according to an embodiment of the utility model.

[0034] Figure 5 yes Figure 4 A cross-sectional view of CC;

[0035] Figure 6 yes Figure 5 Enlarged structural diagram of the circled area;

[0036] Figure 7 This is a schematic diagram of a machine tool with a vertically used modular rotating platform device for constraining a nut seat for a machine tool, according to an embodiment of the utility model.

[0037] The present invention will be further explained below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0038] The following will refer to the appendix. Figures 1 to 7 Specific embodiments of the present invention will be described in more detail below. While specific embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0039] It should be noted that certain terms are used in the specification and claims to refer to specific components. Those skilled in the art will understand that different terms may be used to refer to the same component. This specification and claims do not distinguish components based on differences in terminology, but rather on differences in function. The terms "comprising" or "including" used throughout the specification and claims are open-ended and should be interpreted as "comprising but not limited to." The following descriptions of the preferred embodiments of the present invention are for the purpose of implementing the general principles of the specification and are not intended to limit the scope of the present invention. The scope of protection of this invention shall be determined by the appended claims.

[0040] To facilitate understanding of the embodiments of this utility model, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments. The accompanying drawings do not constitute a limitation on the embodiments of this utility model.

[0041] To better understand, such as Figures 2 to 6 As shown, the modular rotary platform device for vertical use of nut seat constraints in machine tools includes:

[0042] Base 7, which is equipped with guide rails 8;

[0043] Slider 6 is movably connected to the guide rail 8.

[0044] A servo motor 1 is connected to the base 7 via a motor mount 2;

[0045] Lead screw 3, which is connected to servo motor 1 for rotary motion;

[0046] Nut 4 is provided on the base 7 via nut seat 5. Nut 4 is connected to the lead screw 3 and moves in a straight line under the constraint of nut seat.

[0047] The slide 9 connects the nut 4 and the slider 6 to move linearly on the guide rail 8. It is understood that in the nut-screw transmission mechanism, the nut is not directly "fixed" to the nut seat; rather, the nut seat acts as a constraint, allowing the nut to move linearly under its constraint. Otherwise, the nut-screw transmission mechanism itself would lack transmission functionality. When the servo motor 1 drives the screw 3 to rotate, the nut 4 is restricted by the nut seat and cannot rotate, so the nut 4 can only move along the axis of the screw 3. This movement is further transmitted through the nut-screw transmission mechanism to the slide 9 connected to the nut 4 and the guide rail 8 movably connected to the slider, thereby driving the slide 9 to move linearly along the guide rail 8.

[0048] A rotating platform adjustment device 10 is installed on the slide 9. The rotating platform adjustment device 10 includes...

[0049] The turntable mounting plate 13 is fixed to the slide block 9.

[0050] Turntable 12, which is movably connected to the turntable mounting plate 13,

[0051] Multiple adjustment blocks 14 are distributed around the turntable mounting plate 13.

[0052] Multiple adjusting screws 15 are movably connected to the adjusting block 14 to abut against the turntable 12;

[0053] When the modular rotary platform device used for vertical constraint of the nut seat of a machine tool is used as a component of the machine tool, it can achieve five degrees of freedom machining when it is perpendicular to the machine tool bed. This is because the machine tool bed itself has three degrees of freedom in the X, Y, and Z axes. However, when the modular rotary platform device used for vertical constraint of the nut seat of a machine tool is used as a component of the machine tool, two additional degrees of freedom are involved, as detailed below. Figure 7 The B-axis and C-axis mentioned in the corresponding embodiments.

[0054] In a preferred embodiment of the vertical modular rotating platform device for constraining a nut seat for a machine tool, when the lead screw 3 rotates, the nut 4 is connected to the lead screw 3 and moves linearly under the constraint of the nut seat 5. The nut seat 5 provides the necessary support and guidance so that the nut 4 can withstand the axial force from the lead screw 3 and ensures that the nut 4 only moves linearly and does not rotate.

[0055] In a preferred embodiment of the vertical modular rotary platform device for constraining the nut seat of a machine tool, the bottom of the slide 9 is provided with a T-slot, and the rotary platform adjustment device 10 is fixed in the T-slot. It should be noted that the T-slot allows the rotary platform adjustment device 10 to be installed and fixed therein, ensuring that the adjustment device moves with the slide 9 while maintaining the positional accuracy and stability of the turntable 12 relative to the base 7.

[0056] In a preferred embodiment of the vertical modular rotary platform device for constraining a nut seat on a machine tool, the rotary table 12 is equipped with an execution unit. More preferably, the execution unit includes a laser head. It is understood that if the machine tool uses a cutting tool instead of a laser head, the execution unit may include a cutting tool. That is to say, theoretically, the specific implementation of the execution unit is not a limitation of this utility model.

[0057] In a preferred embodiment of the vertical modular rotary platform device for constraining the nut seat of a machine tool, multiple adjusting blocks are symmetrically distributed around the rotary table 12 on the rotary table mounting plate 13. This ensures that the force applied to the rotary table 12 is evenly distributed. By abutting the rotary table 12 with multiple adjusting screws 15, the position and angle of the rotary table can be precisely adjusted, achieving fine-tuning. The symmetrical distribution helps maintain the balance of the rotary table 12, avoiding tilting or deformation caused by asymmetrical forces, thereby ensuring the accuracy and stability of the rotary platform.

[0058] In a preferred embodiment of the vertical modular rotary platform device for constraining the nut seat of a machine tool, the base 7 is provided with a pair of parallel guide rails 8, the extension direction of which is parallel to the extension direction of the lead screw 3. This is to provide a more stable support structure, allowing the slide 9 to move smoothly along a predetermined path. The direction of the guide rails 8 being parallel to the lead screw 3 ensures that the linear motion generated by the lead screw drive can be directly and efficiently transmitted to the slide 9, reducing unnecessary lateral forces or friction, and improving transmission efficiency and positioning accuracy.

[0059] In a preferred embodiment of the vertical modular rotary platform device for constraining the nut seat of a machine tool, a pair of parallel guide rails 8 are symmetrically distributed on both sides of the lead screw 3. This is to further enhance the stability and rigidity of the entire system. This layout effectively prevents the slide 9 from torsional deformation during movement, ensuring that it always moves in a straight line. At the same time, it also makes the force distribution of the system under load more uniform, improving service life and reliability.

[0060] In a preferred embodiment of the vertical modular rotary platform device for constraining nut seats in machine tools, the device has a symmetrical structure. It should be noted that the symmetrical structure of the vertical modular rotary platform device for constraining nut seats in machine tools is not only aesthetically pleasing, but more importantly, it helps optimize mechanical performance: a symmetrical structure ensures that all components bear the same load and stress, reducing problems caused by eccentric loads; furthermore, symmetry simplifies the design and manufacturing process, as parts on both sides can be interchanged, reducing production costs and improving assembly efficiency; simultaneously, a symmetrical structure enhances the dynamic balance of the system, making it more suitable for high-precision applications.

[0061] In another embodiment, the present invention also discloses a machine tool including the aforementioned modular rotating platform device for vertical use constraining the nut seat of the machine tool.

[0062] In another embodiment, the present invention also discloses a measuring device, which includes the aforementioned modular rotating platform device for vertical use of nut seat constraint for machine tools and a measuring sensor disposed on the turntable 12.

[0063] In another embodiment, the end of the lead screw is rotatably supported via a bearing housing 11.

[0064] In another embodiment, the servo motor 1 is fixed to the base 7 via the motor mount 2, driving the lead screw 3 to rotate. The nut 4 converts the rotational motion of the lead screw 3 into linear motion. The slide 9 moves linearly on the guide rail 8 via the nut 4 on the nut seat 5. The rotary table 12 is fixed to the slide 9 via the rotary platform adjustment device 10, and moves up and down with the slide 9 on the base 7, serving as the Z-axis motion component of the machine tool. The rotary table 12 is fixed to the slide 9 via the rotary table mounting plate 13, and moves together with the slide 9. The adjustment device on the rotary table mounting plate 13 includes a left adjustment block, a left adjustment screw, a right adjustment block, a right adjustment screw, a front adjustment block, and a front adjustment screw. If turntable 12 is offset to the left relative to its theoretical position, tightening the adjusting screw on the left adjusting block will shift turntable 12 to the right relative to slide 9, moving it to the theoretically correct position. Similarly, if turntable 12 is offset to the right relative to its theoretical position, tightening the right adjusting screw on the right adjusting block will shift turntable 12 to the left relative to slide 9, moving it to the theoretically correct position. If turntable 12 is offset forward relative to its theoretical position, tightening the front adjusting screw on the front adjusting block will shift turntable 12 backward relative to slide 9, moving it to the theoretically correct position. If turntable 12 is offset backward relative to its theoretical position, tightening the adjusting screw on the front adjusting block will shift turntable 12 forward relative to slide 9, moving it to the theoretically correct position. The turntable's position can be adjusted in all directions.

[0065] like Figure 7 As shown, in another embodiment, the modular rotary platform device for vertical use in constraining the nut seat of a machine tool is applied in ultra-precision high-precision machine tools, and can be used as a vertical axis motion module for ultra-precision machining. Figure 7 At the Z-axis component shown, excluding the Z-axis component, Figure 7 The diagram also illustrates the machine tool bed, the extended column on the bed, the Y-axis crossbeam and Y-axis slide above the extended column, the longitudinally arranged laser head, the B-axis rotary table near the tail of the laser head, and the C-axis rotary table directly below the head of the laser head. The actuator, such as the laser head shown in the diagram, is mounted on the B-axis rotary table and equipped with a workpiece rotation rotary table, i.e., the C-axis rotary table. Since five axes are involved (X-axis, Y-axis, Z-axis, B-axis, and C-axis), the X, Y, and Z axes ultimately provide the linear positioning capability of the laser head in three-dimensional space. The B-axis rotary table, located near the tail of the laser head, provides rotational motion around the Y-axis, allowing the laser head to approach the workpiece at different angles, increasing processing flexibility. The C-axis rotary table, located directly below the head of the laser head, provides rotational motion around the Z-axis, allowing different surfaces of the workpiece to be processed without re-clamping or adjusting the workpiece's position. Therefore, this utility model's modular rotary platform device for vertical use with nut seat constraints on machine tools achieves five-axis high-precision machining of the workpiece through a simple solution.

[0066] Although the embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the specific embodiments and application fields described above. The specific embodiments described above are merely illustrative and instructive, and not restrictive. Those skilled in the art can make many other forms based on the guidance of this specification and without departing from the scope of protection of the claims of the present invention, and all of these are within the scope of protection of the present invention.

Claims

1. A modular rotary platform device for vertical use with nut seat constraint in machine tools, characterized in that, It includes, The base is equipped with guide rails; A slider, which is movably connected to the guide rail, A servo motor, which is connected to the base via a motor mount; A lead screw, which is connected to the servo motor for rotary motion; A nut, which connects to the lead screw and moves linearly under the constraint of the nut seat; A ram, which connects the nut and the slider, allows for linear movement on the guide rail. A rotating platform adjustment device, which is installed on the slide block, includes... The turntable mounting plate is fixed to the slide block. A turntable, which is movably connected to the turntable mounting plate, Multiple adjustment blocks are distributed around the turntable mounting plate. Multiple adjusting screws, movably connected to the adjusting block to abut against the turntable, wherein... The modular rotating platform device for vertical use of the nut seat constraint of the machine tool is perpendicular to the bed of the machine tool.

2. The modular rotary platform device for vertical use of nut seat constraint in machine tools according to claim 1, characterized in that, The bottom of the slide is provided with a T-shaped groove, and the rotating platform adjustment device is fixed in the T-shaped groove.

3. The modular rotary platform device for vertical use of nut seat constraint in machine tools according to claim 1, characterized in that, The turntable is equipped with an execution unit.

4. The modular rotary platform device for vertical use of nut seat constraint in machine tools according to claim 3, characterized in that, The execution unit includes a laser head.

5. The modular rotary platform device for vertical use of nut seat constraint in machine tools according to claim 1, characterized in that, Multiple adjustment blocks are symmetrically distributed around the turntable mounting plate with the turntable as the center.

6. The modular rotary platform device for vertical use of nut seat constraint in machine tools according to claim 1, characterized in that, The base is provided with a pair of parallel guide rails, the extension direction of which is parallel to the extension direction of the lead screw.

7. The modular rotary platform device for vertical use of nut seat constraint in machine tools according to claim 6, characterized in that, A pair of parallel guide rails are symmetrically distributed on both sides of the lead screw.

8. The modular rotary platform device for vertical use of nut seat constraint in machine tools according to claim 1, characterized in that, The vertical modular rotating platform device for constraining the nut seat of a machine tool has a symmetrical structure.

9. A machine tool, characterized in that, It includes a vertically used modular rotary platform device for constraining a nut seat for a machine tool according to any one of claims 1-8.

10. A measuring device, characterized in that, It includes a vertically used modular rotary platform device for constraining a nut seat on a machine tool according to any one of claims 1-8, and a measuring sensor disposed on the rotary table.