Ultra-short multi-rotor high-torque linear motor sliding table module

Abstract

The utility model relates to the technical field of sliding table modules, and particularly discloses an ultra-short multi-rotor high-torque linear motor sliding table module, which comprises a base, a guide rail group, a stator and a sliding table module, the sliding table module comprises a sliding assembly, the sliding assembly comprises a sliding seat, first sliding blocks and a rotor, the first sliding blocks are arranged on the sliding seat, the two first sliding blocks are located at the two ends, away from each other, of the sliding seat respectively, the rotor is located between the two first sliding blocks, and the sliding seat is in sliding connection with the base through the guide rail set and the first sliding blocks. The two sets of first sliding blocks are arranged and located at the two ends, away from each other, of the sliding base respectively, the span of the sliding base is increased, the first sliding blocks at the two ends support and balance the sliding base, the rigidity and torsion resistance of a system are improved, and stable and smooth operation is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of slide module technology, and in particular discloses an ultra-short multi-actuator high-torque linear motor slide module. Background Technology

[0002] Linear motor slides, as a type of transmission device that directly converts electrical energy into linear motion, have advantages such as simple structure, rapid response, and high positioning accuracy. They have been widely used in high-precision CNC machine tools, semiconductor packaging equipment, and precision testing instruments.

[0003] However, existing linear motor slides have limited torque output, which cannot provide continuous and stable high thrust for applications with large inertial loads or high torque (such as oilfield engineering vehicles and aerospace testing platforms). At the same time, the distribution of guide support points is simple, and the torsional and lateral rigidity is insufficient, which can easily cause slide vibration, affecting positioning accuracy and service life. Utility Model Content

[0004] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a linear motor slide module with a shorter module length and stronger output torque.

[0005] To achieve the above objectives, this utility model discloses an ultra-short, multi-mover, high-torque linear motor slide module, comprising a base and a guide rail assembly, a stator, and a slide module mounted on the base. The slide module includes a sliding assembly, which comprises a slide block, first sliders mounted on the slide block, and a mover. Two sets of first sliders are provided, located at opposite ends of the slide block. The mover is located between the two sets of first sliders. The slide block is slidably connected to the base via the guide rail assembly and the first sliders. This utility model, by setting two sets of first sliders located at opposite ends of the slide block, increases the span of the slide block. The double-ended first sliders support the balanced slide block, increasing the system's rigidity and torsional resistance, ensuring stable and smooth operation.

[0006] Furthermore, the slide block has an I-shaped structure, comprising a main body and two sets of mounting portions protruding from both ends of the main body, with two sets of first sliders respectively mounted on the two sets of mounting portions. The I-shaped structure has higher bending resistance under loads perpendicular to the sliding direction. At the same time, compared with a solid square section, it can reduce the weight of the slide block itself and reduce inertia, balancing rigidity and weight within a limited space. The protruding mounting portions provide a standardized slider mounting platform, facilitating assembly and maintenance.

[0007] Furthermore, the slide block is provided with a protrusion extending from the main body, located between the two sets of mounting parts, and the mover is mounted on the protrusion. The mover is centrally mounted on the protrusion, shortening the motor length and achieving the "ultra-short" design. The protrusion is integrally machined with the main body, ensuring installation accuracy and improving overall rigidity.

[0008] Furthermore, the sliding assembly also includes two sets of second sliders mounted on the slide block. These two sets of second sliders are located at opposite ends of the protrusion, and the line connecting the two sets of second sliders intersects the line connecting the two sets of first sliders. An additional set of second sliders is also provided at each end of the slide block protrusion. The overall sliding assembly comprises: first sliders at both ends, a second slider in the middle, and a central mover. The second sliders provide supplementary guide support, forming a four-point support. The four sets of sliders distribute the force, making the slide block more stable when subjected to lateral or overturning loads. The addition of the second sliders significantly improves the overall torsional rigidity of the slide table.

[0009] Furthermore, the main body is provided with a clearance groove that matches the protrusion. Two sets of sliding components are provided; the protrusion of the first sliding component mates with the clearance groove of the second sliding component for installation. The two sets of sliding components are staggered on the base. This staggered arrangement avoids stacking of components in the same dimensional direction, resulting in a shorter length. Multiple sets of components can work synchronously, allowing for hierarchical driving as needed, improving control flexibility. Each set of components can be independently disassembled and installed, facilitating expansion or maintenance.

[0010] Furthermore, the slide module comprises multiple sets, which are detachably connected via fasteners and installed at equal intervals along the length of the guide rail assembly on the base. This modular parallel connection can multiply the total thrust and torque, meeting high load requirements. Slide modules can be added or removed according to actual stroke or load needs, offering a high degree of customization. The modular structure allows for quick replacement of individual modules in case of failure, reducing maintenance costs.

[0011] Furthermore, the ultra-short multi-actuator high-torque linear motor slide module also includes a dustproof mechanism mounted on the base. This dustproof mechanism comprises two sets of side frames respectively mounted at both ends of the base, and a dustproof cover plate installed between the two sets of side frames. The dustproof cover plate prevents dust, debris, and other contaminants from entering the guide rail and slider interface, extending the lifespan of the sliding system. The side frames and cover plate have a simple structure, are easy to disassemble or replace on-site, and allow for quick maintenance.

[0012] Furthermore, the slide has a mounting groove through which a dust cover plate passes. The groove design does not significantly increase the size of the slide, maintaining an ultra-short overall length.

[0013] Furthermore, the stator includes multiple sets of magnet groups, each consisting of a first magnet, a second magnet, a third magnet, and a fourth magnet arranged sequentially. The first and third magnets have opposite magnetic poles on the mover side, while the second and fourth magnets have the same magnetic poles on the third magnet side. The internal magnetic field lines of the first and third magnets intersect with the internal magnetic field lines of the second and fourth magnets at angles of 45-90°. By optimizing the arrangement of the magnet pieces, the magnetic field is strengthened within the effective working area of ​​the motor. This arrangement allows the magnetic field lines to concentrate along the direction of motor movement, thereby increasing the motor's magnetic field strength and power density. Compared to traditional magnet arrangements, the Heilbeck array can more effectively utilize the magnetic field of the magnets, improving the motor's torque and efficiency.

[0014] Furthermore, the magnet assembly is a magnet unit or a magnetically conductive unit. The magnet unit includes a permanent magnet and a shielding cover covering the outside of the permanent magnet. The shielding cover is an integral structure and has a blind slot for accommodating the permanent magnet, with the opening of the blind slot exposing the end face of the permanent magnet. The magnetically conductive unit is made of a magnetically conductive material. The shielding cover enables the magnet unit to form a unilateral magnetic field, enhancing the magnetic density between the two sets of magnetic units and strengthening the interaction force between the magnetic units. At the same time, it avoids the influence of the magnetic units on external electronic components. The integral shielding cover has a better shielding effect. The integral shielding cover has no seams or splicing points, which can effectively block the leakage and interference of electromagnetic waves, providing higher shielding efficiency. At the same time, the integral shielding cover is more resistant to the effects of the external environment (such as humidity, corrosion, etc.), making it particularly suitable for applications in harsh environments.

[0015] The beneficial effects of this utility model are as follows: By setting two sets of first sliders, which are located at opposite ends of the slide block, the span of the slide block is increased. The first sliders at both ends support the balance slide block, which increases the rigidity and torsional resistance of the system and ensures stable and smooth operation.

[0016] The I-beam structure has higher bending resistance under loads perpendicular to the sliding direction. At the same time, compared with a solid square section, it can reduce the weight of the slide block itself and reduce inertia, thus balancing rigidity and weight in a limited space. The protruding mounting part provides a standardized slider mounting platform for easy assembly and maintenance.

[0017] A second set of sliders is provided at each end of the protruding part of the slide block. The overall sliding assembly includes: first sliders at both ends, second slider in the middle, and a central mover. The second sliders provide additional guide support, forming a four-point support. The four sets of sliders distribute the force, making the slide block more stable when subjected to lateral or overturning loads. The addition of the second sliders greatly improves the overall torsional rigidity of the slide table. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a multifunctional massager according to the present invention;

[0019] Figure 2 This is an exploded view of a multifunctional massager according to the present invention;

[0020] Figure 3 This is a schematic diagram of the slide module of this utility model;

[0021] Figure 4 This is a schematic diagram of the magnet assembly of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the magnet unit of this utility model.

[0023] The reference numerals in the figures include:

[0024] 1. Base; 2. Guide rail assembly; 3. Stator; 4. Slide module; 5. Sliding assembly; 6. Slide base; 7. First slider; 8. Mover; 9. Body; 10. Mounting part; 11. Protrusion; 12. Second slider; 13. Alternating groove; 14. First magnet; 15. Second magnet; 16. Third magnet; 17. Fourth magnet; 18. Permanent magnet; 19. Shielding cover; 20. Dustproof mechanism; 21. Side frame; 22. Dustproof cover; 23. Mounting groove. Detailed Implementation

[0025] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0026] Please see Figures 1 to 5 As shown, this utility model discloses an ultra-short, multi-mover, high-torque linear motor slide module, including a base 1, a guide rail assembly 2, a stator 3, and a slide module 4 mounted on the base 1. The slide module 4 includes a sliding component 5, which comprises a slide base 6, first sliders 7 mounted on the slide base 6, and a mover 8. Two sets of first sliders 7 are provided, located at opposite ends of the slide base 6. The mover 8 is located between the two sets of first sliders 7. The slide base 6 is slidably connected to the base 1 via the guide rail assembly 2 and the first sliders 7. By setting two sets of first sliders 7, located at opposite ends of the slide base 6, this utility model increases the span of the slide base 6. The double-ended first sliders 7 support and balance the slide base 6, increasing the system's rigidity and torsional resistance, ensuring stable and smooth operation.

[0027] The slide block 6 has an I-shaped structure, including a body 9 and two sets of mounting portions 10 protruding from both ends of the body 9. The two sets of first sliders 7 are respectively mounted on the two sets of mounting portions 10. The I-shaped structure has higher bending resistance under loads perpendicular to the sliding direction. At the same time, compared with a solid square section, it can reduce the weight of the slide block 6 itself and reduce inertia, thus balancing rigidity and weight within a limited space. The protruding mounting portions 10 provide a standardized slider mounting platform for easy assembly and maintenance.

[0028] The slide block 6 has a protrusion 11 extending from the body 9. The protrusion 11 is located between the two sets of mounting parts 10, and the mover 8 is mounted on the protrusion 11. The mover 8 is centrally mounted on the protrusion 11, which shortens the motor length and achieves the "ultra-short" target. The protrusion 11 is integrally machined with the body 9 to ensure installation accuracy and improve overall rigidity.

[0029] The sliding assembly 5 also includes a second slider 12 disposed on the slide block 6. Two sets of second sliders 12 are provided, located at both ends of the protrusion 11, and the line connecting the two sets of second sliders 12 intersects the line connecting the two sets of first sliders 7. Another set of second sliders 12 is provided at each end of the protrusion 11 of the slide block 6. The overall sliding assembly 5 includes: first sliders 7 at both ends, a second slider 12 in the middle, and a central mover 8. The second sliders 12 supplement the guide support, forming a four-point support. The four sets of sliders distribute the force, making the slide block 6 more stable when subjected to lateral or overturning loads. The addition of the second sliders 12 greatly improves the overall torsional rigidity of the slide table.

[0030] The main body 9 is provided with a clearance groove 13 that matches the protrusion 11. There are two sets of sliding components 5. The protrusion 11 of the first sliding component 5 is fitted with the clearance groove 13 of the second sliding component 5 for installation. The two sets of sliding components 5 are staggered on the base 1. The staggered arrangement avoids the components from being stacked in the same dimension direction, occupies a shorter length, and multiple sets of components work synchronously. They can be driven in stages as needed, improving control flexibility. Each set of components can be disassembled and installed independently, which is convenient for expansion or maintenance.

[0031] The slide module 4 consists of multiple sets, which are detachably connected via fasteners. These multiple sets of slide modules 4 are installed at equal intervals along the length of the guide rail assembly 2 on the base 1. This modular parallel connection can multiply the total thrust and torque, meeting the demands of large loads. Slide modules 4 can be added or removed according to actual stroke or load requirements, offering a high degree of customization. The modular structure allows for quick replacement of individual modules in case of failure, reducing maintenance costs.

[0032] The ultra-short multi-actuator high-torque linear motor slide module also includes a dustproof mechanism 20 mounted on the base 1. The dustproof mechanism 20 includes two sets of side frames 21 respectively mounted at both ends of the base 1, and a dustproof cover plate 22 installed between the two sets of side frames 21. The dustproof cover plate 22 prevents dust, debris, etc. from entering the guide rail and slider interface, extending the service life of the sliding system. The side frames 21 and the cover plate have a simple structure, are easy to disassemble or replace on site, and are quick to maintain.

[0033] The slide 6 has a mounting groove through which the dust cover 22 passes. The groove design does not significantly increase the size of the slide 6, maintaining an ultra-short overall length.

[0034] The stator 3 includes multiple sets of magnet groups, comprising a first magnet 14, a second magnet 15, a third magnet 16, and a fourth magnet 17 arranged sequentially. The magnetic poles of the first magnet 14 and the third magnet 16 near the mover 8 are opposite, while the magnetic poles of the second magnet 15 and the fourth magnet 17 near the third magnet 16 are the same. The internal magnetic field lines of the first magnet 14 and the third magnet 16 intersect with the internal magnetic field lines of the second magnet 15 and the fourth magnet 17 at angles of 45-90°. By optimizing the arrangement of the magnets, the magnetic field is strengthened within the effective working area of ​​the motor. This arrangement concentrates the magnetic field lines along the direction of motor movement, thereby increasing the motor's magnetic field strength and power density. Compared to traditional magnet arrangements, the Heilbeck array can more effectively utilize the magnetic field of the magnets, improving the motor's torque and efficiency.

[0035] The magnet assembly consists of either a magnet unit or a magnetically conductive unit. The magnet unit includes a permanent magnet 18 and a shield 19 covering the outside of the permanent magnet 18. The shield 19 is an integral structure and has a blind slot for accommodating the permanent magnet 18, with the opening of the blind slot exposing the end face of the permanent magnet 18. The magnetically conductive unit is made of a magnetically conductive material. The shield 19 enables the magnet unit to form a unilateral magnetic field, enhancing the magnetic density between the two sets of magnetic units and strengthening the interaction force between them. Simultaneously, it prevents the magnetic units from affecting external electronic components. The integral shield 19 provides better shielding performance. Without seams or splicing points, the integral shield 19 effectively blocks electromagnetic wave leakage and interference, providing higher shielding efficiency. Furthermore, the integral shield 19 is more resistant to the effects of external environments (such as humidity and corrosion), making it particularly suitable for applications in harsh environments.

[0036] Furthermore, the base 1 is provided with a first anti-collision strip, which is provided in two sets. The two sets of first anti-collision strips are located at both ends of the base 1, with one end of the first anti-collision strip installed on the base 1 and the other end of the first anti-collision strip abutting against the slide.

[0037] Furthermore, the sliding assembly 5 is equipped with a second anti-collision strip. One end of the second anti-collision strip 25 is mounted on the slide block 6, and the other end of the second anti-collision strip abuts against the adjacent sliding assembly 5. The design of the anti-collision strip protects the slide module 4 and the base 1, reduces damage caused by external impacts, and improves the overall durability and stability of the system.

[0038] In specific implementation, the stator 3 and guide rail assembly 2 are fixedly installed on the base 1 by fasteners (such as screws), the two sets of first sliders 7 are respectively located at both ends of the body 9, the two sets of second sliders 12 are respectively located at both ends of the protrusion 11, the mover 8 is installed on the slide block 6, the protrusion 11 of the first sliding assembly 5 and the clearance groove 13 of the second sliding assembly 5 are inserted and fitted together, and multiple sets of slide modules 4 are detachably connected by fasteners according to the usage requirements.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A slide module for an ultra-short multi-actuator high-torque linear motor, comprising a base (1) and a guide rail assembly (2), a stator (3), and a slide module (4) mounted on the base (1); characterized in that: The slide module (4) includes a sliding component (5), which includes a slide base (6), a first slider (7) disposed on the slide base (6), and a mover (8). The first slider (7) is provided in two sets, and the two sets of first sliders (7) are respectively located at opposite ends of the slide base (6). The mover (8) is located between the two sets of first sliders (7). The slide base (6) is slidably connected to the base (1) via the guide rail assembly (2) and the first slider (7).

2. The ultra-short multi-actuator high-torque linear motor slide module according to claim 1, characterized in that: The slide block (6) has an I-shaped structure. The slide block (6) includes a body (9) and two sets of mounting parts (10) protruding from both ends of the body (9). The two sets of first sliders (7) are respectively mounted on the two sets of mounting parts (10).

3. The ultra-short multi-actuator high-torque linear motor slide module according to claim 2, characterized in that: The slide (6) is provided with a protrusion (11) extending from the body (9). The protrusion (11) is located between two sets of mounting parts (10), and the mover (8) is mounted on the protrusion (11).

4. The ultra-short multi-actuator high-torque linear motor slide module according to claim 3, characterized in that: The sliding assembly (5) also includes a second slider (12) disposed on the slide block (6). The second slider (12) is provided in two sets, and the two sets of second sliders (12) are respectively located at both ends of the protrusion (11). The line connecting the two sets of second sliders (12) intersects with the line connecting the two sets of first sliders (7).

5. The ultra-short multi-actuator high-torque linear motor slide module according to claim 3, characterized in that: The main body (9) is provided with a clearance groove (13) that is adapted to the protrusion (11). The sliding component (5) is provided in two sets. The protrusion (11) of the first sliding component (5) is installed in conjunction with the clearance groove (13) of the second sliding component (5). The two sets of sliding components (5) are staggered on the base (1).

6. The ultra-short multi-actuator high-torque linear motor slide module according to claim 5, characterized in that: The slide module (4) is provided in multiple sets, and the multiple sets of slide modules (4) are detachably connected by fasteners. The multiple sets of slide modules (4) are installed on the base (1) at equal intervals along the length direction of the guide rail group (2).

7. The ultra-short multi-actuator high-torque linear motor slide module according to claim 1, characterized in that: The stator (3) includes multiple sets of magnet groups, each set including a first magnet (14), a second magnet (15), a third magnet (16), and a fourth magnet (17) arranged in sequence. The magnetic poles of the first magnet (14) and the third magnet (16) are opposite on the side near the mover (8), while the magnetic poles of the second magnet (15) and the fourth magnet (17) are the same on the side near the third magnet (16). The internal magnetic field lines of the first magnet (14) and the third magnet (16) intersect with the internal magnetic field lines of the second magnet (15) and the fourth magnet (17) at an angle of 45-90°.

8. The ultra-short multi-actuator high-torque linear motor slide module according to claim 7, characterized in that: The magnet assembly is a magnet unit or a magnetic conductive unit. The magnet unit includes a permanent magnet (18) and a shield (19) covering the outside of the permanent magnet (18). The shield (19) is an integral structure and has a blind slot for accommodating the permanent magnet (18). The opening of the blind slot exposes the end face of the permanent magnet (18). The magnetic conductive unit is made of magnetic conductive material.

9. The ultra-short multi-actuator high-torque linear motor slide module according to claim 1, characterized in that: The ultra-short multi-actuator high-torque linear motor slide module also includes a dustproof mechanism (20) set on the base (1). The dustproof mechanism (20) includes two sets of side frames (21) respectively set at both ends of the base (1) and a dustproof cover plate (22) installed between the two sets of side frames (21).

10. A high-torque linear motor slide module with an ultra-short multi-actuator according to claim 9, characterized in that: The slide (6) is provided with a mounting groove (23) through which the dust cover plate (22) passes.

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