Short multi-mover linear motor slide table structure

Abstract

This utility model relates to the field of slide module technology, and in particular discloses a short-shaped multi-mover linear motor slide structure, including a base module and a slide module mounted on the base module; the base module includes a support seat and a slide rail and a stator mounted on the support seat; the slide module includes a sliding assembly, which includes a slide base, a slider and a mover that cooperate with the slide rail, both of which are mounted on the slide base. The slide base includes a body and a protrusion extending from the body, and the mover is mounted on the protrusion. The body has a clearance groove adapted to the protrusion. There are two sets of sliding assemblies, with the protrusion of the first sliding assembly cooperating with the clearance groove of the second sliding assembly. The two sets of sliding assemblies are staggered and arranged facing each other on the base module. This utility model significantly reduces the overall size of the equipment through its ultra-short structure and staggered layout of the sliding assemblies, enabling the equipment to operate efficiently in a more compact space.

Description

Technical Field

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

[0002] With the continuous improvement of industrial automation, especially in fields such as precision manufacturing, intelligent equipment, and robotics, the demand for linear motor slide modules with high precision, high load capacity, and high stability is increasing. Linear motors, as a drive method with high precision and high response speed, are widely used in CNC machine tools, industrial robots, precision testing equipment, and many other fields. However, due to the extremely high requirements of these devices in terms of space, rigidity, load capacity, and motion accuracy, traditional linear motor slide designs are gradually revealing some limitations.

[0003] Most linear motor slides on the market today use a traditional structural design, with large dimensions for the slide base, guide rail, and stator, and a long center distance, resulting in bulky equipment. This is especially problematic when used in confined spaces, often failing to meet the demands for high precision and high load. Furthermore, traditional designs often neglect rigidity and stability issues. Under high loads or long cantilever structures, the slide base and guide rail are prone to deformation, leading to decreased motion accuracy and affecting the normal operation of the equipment. 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 optimized slide design, shortened center distance, improved rigidity and optimized load distribution.

[0005] To achieve the above objectives, this utility model discloses a short-shaped multi-mover linear motor slide structure, comprising a base module and a slide module mounted on the base module. The base module includes a support seat and a slide rail and a stator mounted on the support seat. The slide module includes a sliding assembly, which includes a slide base, a slider that cooperates with the slide rail, and a mover. Both the slider and the mover are mounted on the slide base. The slide base includes a body and a protrusion extending from the body. The mover is mounted on the protrusion. The body has a clearance groove adapted to the protrusion. There are two sets of sliding assemblies. The protrusion of the first sliding assembly is fitted with the clearance groove of the second sliding assembly. The two sets of sliding assemblies are staggered and arranged facing each other on the base module. This design significantly reduces the overall size of the equipment through the ultra-short structure and the staggered layout of the sliding assemblies, enabling the equipment to work efficiently in a more compact space. The convex structure of the protrusion enhances the rigidity of the slide base, provides stronger support capacity, and effectively avoids deformation of the equipment under high loads, especially under long cantilever loads.

[0006] Furthermore, the slide has a convex structure, with the protrusion and the clearance groove located at both ends of the body. Compared to traditional planar structures, the convex structure has stronger bending rigidity, which can effectively prevent the slide from deforming under high load conditions. Especially when subjected to large loads or running at high speeds, the convex design can ensure that the slide maintains a stable state and avoid motion errors caused by deformation.

[0007] Furthermore, the slide module is provided in multiple sets, which are mounted on the base module along the length of the slide rail. This multi-set slide module design allows for flexible allocation of modules as needed, adapting to different workloads and improving the overall stability and load-bearing capacity of the system.

[0008] Furthermore, the stator is provided in two sets, which are mounted parallel to each other on the support base. Two sets of sliding components are respectively configured to cooperate with the two sets of stators. By arranging the two sets of stators in parallel, the driving capability of the sliding components can be increased, motor power consumption can be reduced, and overall efficiency can be improved. Stability during long-term operation or high-load work is significantly enhanced.

[0009] Furthermore, the support base is equipped with displacement sensors for detecting the displacement position of the sliding component. Multiple sets of displacement sensors are arranged at equal intervals along the length of the slide rail. This design enables real-time feedback of the sliding component's position information, ensuring precise control of the system during operation. Especially during high-speed or high-load operation, it avoids errors caused by excessive displacement, improving safety.

[0010] Furthermore, the sliding assembly is equipped with a limit switch, which includes an optical grating ruler and an optical grating reader respectively disposed on both sides of the slide block. The optical grating reader is electrically connected to the moving part. The optical grating ruler of the first sliding assembly triggers the optical grating reader of the second sliding assembly, and the optical grating reader controls the second sliding assembly to stop moving. The limit switch design effectively prevents the sliding assembly from exceeding its predetermined range of motion, avoiding damage to other components and improving the safety and reliability of the equipment.

[0011] Furthermore, the stator has multiple magnetic modules that extend along the length of the slide rail. These magnetic modules are permanent magnets arranged in a Halebeck array. The Halebeck array is a highly efficient magnetic field arrangement that provides relatively uniform electromagnetic force. This stator design offers more efficient power transmission and a stable magnetic field distribution, improving system efficiency and stability, and reducing the impact of electromagnetic force non-uniformity on the sliding components.

[0012] Furthermore, the support base 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 support base, with one end of the first anti-collision strip installed on the support base and the other end of the first anti-collision strip abutting against the slide module.

[0013] Furthermore, the sliding assembly is equipped with a second anti-collision strip. One end of the second anti-collision strip is mounted on the slide block, and the other end abuts against an adjacent sliding assembly. The anti-collision strip design protects the slide module and support base, reduces damage caused by external impacts, and improves the overall durability and stability of the system.

[0014] Furthermore, the short multi-mover linear motor slide structure also includes a dustproof mechanism mounted on the base module. This dustproof mechanism comprises two sets of side frames respectively positioned at both ends of the support base, and a dustproof cover plate installed between the two sets of side frames. The slide base has an installation groove through which the dustproof cover plate passes. This effectively prevents dust, particles, oil, moisture, and other impurities from intruding into the slide rail and stator area, extending the equipment's service life, preventing foreign objects from jamming the slide rail or damaging the mover and stator, and improving the module's operational stability.

[0015] The beneficial effects of this utility model are as follows: By using an ultra-short structure and an alternating layout of sliding components, this utility model significantly reduces the overall size of the equipment, enabling it to work efficiently in a more compact space. The convex structure of the protruding part enhances the rigidity of the slide and provides stronger support, effectively avoiding deformation of the equipment under high loads, especially under long cantilever loads. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a short multi-actuator linear motor slide table according to the present invention;

[0017] Figure 2 This is an exploded view of the slide structure of a short multi-actuator linear motor according to the present invention;

[0018] Figure 3 This is a schematic diagram of the sliding component of this utility model;

[0019] Figure 4 for Figure 2 A partial schematic diagram of A in the middle;

[0020] Figure 5 This is a schematic diagram of the magnetic module of this utility model.

[0021] The reference numerals in the figures include:

[0022] 1. Base module; 2. Slide table module; 3. Support base; 4. Slide rail; 5. Stator; 6. First sliding assembly; 7. Slide base; 8. First slider; 9. Mover; 10. Body; 11. Protrusion; 12. Alternating groove; 13. Second magnet; 14. Third magnet; 15. Fourth magnet; 16. Second sliding assembly; 17. Second slider; 18. Third slider; 19. Fourth slider; 20. Displacement sensor; 21. Limit switch; 22. Grating ruler; 23. Grating reader; 24. First anti-collision strip; 25. Second anti-collision strip; 26. First magnet; 27. Dustproof mechanism; 28. Side frame; 29. ​​Dustproof cover; 30. Mounting slot. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1 to 5 As shown, the present invention discloses a short multi-moving linear motor slide structure, including a base module 1 and a slide module 2 disposed on the base module 1; the base module 1 includes a support base 3 and a slide rail 4 and a stator 5 disposed on the support base 3; the slide module 2 includes a sliding assembly, which includes a slide seat 7, a slider that cooperates with the slide rail 4, and a mover 9. The slider and the mover 9 are both mounted on the slide seat 7. The slide seat 7 includes a body 10 and a protrusion 11 extending from the body 10. The mover 9 is mounted on the protrusion 11. The body 10 is provided with a clearance groove 12 adapted to the protrusion 11. There are two sets of sliding assemblies. The protrusion 11 of the first sliding assembly 6 is fitted with the clearance groove 12 of the second sliding assembly 16. The two sets of sliding assemblies are arranged opposite each other on the base module 1. This design significantly reduces the overall size of the equipment through the staggered layout of the ultra-short structure and sliding components, enabling the equipment to work efficiently in a more compact space. The convex structure of the protrusion 11 enhances the rigidity of the slide 7, provides stronger support, and effectively avoids the deformation problem of the equipment under high load, especially under long cantilever load conditions.

[0025] The slide 7 has a convex structure, with the protrusion 11 and the clearance groove 12 located at both ends of the body 10, respectively. Compared with the traditional planar structure, the convex structure has stronger bending rigidity, which can effectively prevent the slide 7 from deforming under high load conditions. Especially when subjected to large loads or running at high speeds, the convex design can ensure that the slide 7 maintains a stable state and avoid motion errors caused by deformation.

[0026] The slide block has four sets: the first slide block 8 and the second slide block 17 are located at both ends of the main body 10, and the third slide block 18 and the fourth slide block 19 are located at both ends of the protrusion 11. These four sets of slide blocks increase the span of the slide block in the X and Y directions, which not only enhances the rigidity of the slide block 7 but also effectively improves its stability under high load conditions. The cooperation between the protrusion 11 and the slide blocks increases the overall bending rigidity of the slide block 7, ensuring that the slide block 7 is not easily deformed, especially under long cantilever and high load conditions.

[0027] The slide module 2 has multiple sets, which are installed on the base module 1 along the length of the slide rail 4. The design of multiple slide modules 2 allows the modules to be flexibly arranged as needed to adapt to different workloads, thereby improving the overall stability and load-bearing capacity of the system.

[0028] The stator 5 has two sets, which are mounted parallel to each other on the support base 3. Two sets of sliding components are respectively configured to cooperate with the two sets of stator 5. By arranging the two sets of stator 5 in parallel, the driving capability of the sliding components can be increased, motor power consumption can be reduced, and overall efficiency can be improved. This significantly enhances stability during long-term operation or high-load work.

[0029] The support base 3 is equipped with displacement sensors 20 for detecting the displacement position of the sliding component. Multiple sets of displacement sensors 20 are arranged at equal intervals along the length of the slide rail 4. This design provides real-time feedback on the position information of the sliding component, ensuring precise control of the system during operation. Especially during high-speed or high-load operation, it avoids errors caused by excessive displacement, thus improving safety.

[0030] The sliding assembly is equipped with a limit switch 21. The limit switch 21 includes an optical grating ruler 22 and an optical grating reader 23 respectively disposed on both sides of the slide block 7. The optical grating reader 23 is electrically connected to the mover 9. The optical grating ruler 22 of the first sliding assembly 6 triggers the optical grating reader 23 of the second sliding assembly 16, and the optical grating reader 23 controls the second sliding assembly 16 to stop moving. Through the design of the limit switch 21, the sliding assembly can be effectively prevented from exceeding the predetermined movement range, avoiding damage to other components and improving the safety and reliability of the equipment.

[0031] The stator 5 has multiple magnetic modules that extend along the length of the slide rail 4. These magnetic modules are permanent magnets arranged in a Halebeck array. The Halebeck array is a highly efficient magnetic field arrangement that provides relatively uniform electromagnetic force. This stator 5 design offers more efficient power transmission and a stable magnetic field distribution, improving system efficiency and stability, and reducing the impact of electromagnetic force non-uniformity on the sliding components.

[0032] Specifically, the magnetic module includes a first magnet 26, a second magnet 13, a third magnet 14, and a fourth magnet 15 arranged in sequence. The magnetic poles of the first magnet 26 and the third magnet 14 are opposite on the side near the mover 9, while the magnetic poles of the second magnet 13 and the fourth magnet 15 are the same on the side near the third magnet 14. The internal magnetic field lines of the first magnet 26 and the third magnet 14 intersect with the internal magnetic field lines of the second magnet 13 and the fourth magnet 15 at an angle 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 lines of force along the direction of motor movement, thereby increasing the motor's magnetic field strength and power density. Compared to traditional magnet arrangements, the Hellbeck array can more effectively utilize the magnetic field of the magnets, improving the motor's torque and efficiency. Meanwhile, traditional magnet arrangements often lead to some magnetic field leakage along the motor's edges, wasting energy. The Hellbeck array design significantly reduces magnetic field leakage. By precisely controlling the distribution of the magnetic field, the Hellbeck array ensures that most of the magnetic lines of force are concentrated within the motor's working area, thus improving the overall efficiency of the motor. Using magnets in a Hellbeck array increases the concentration of the magnetic field, thus providing a stronger magnetic field strength within the same space. This allows the motor to maintain high efficiency while reducing its size and weight, meeting the demands of modern industry for lightweight and compact designs.

[0033] The support base 3 is provided with a first anti-collision strip 24. There are two sets of the first anti-collision strip 24. The two sets of the first anti-collision strips are located at both ends of the support base 3. One end of the first anti-collision strip is installed on the support base 3, and the other end of the first anti-collision strip 24 abuts against the slide module 2.

[0034] The sliding assembly is equipped with a second anti-collision strip 25. One end of the second anti-collision strip 25 is mounted on the slide block 7, and the other end of the second anti-collision strip 25 abuts against the adjacent sliding assembly. The design of the anti-collision strip protects the slide module 2 and the support base 3, reduces damage caused by external impacts, and improves the overall durability and stability of the system.

[0035] The short-shaped multi-actuator linear motor slide structure also includes a dustproof mechanism 27 mounted on the base module 1. The dustproof mechanism 27 includes two sets of side frames 28 respectively mounted at both ends of the support base 3 and a dustproof cover plate 29 installed between the two sets of side frames 28. The slide base 7 is provided with a mounting groove 30 for the dustproof cover plate 29 to pass through. This effectively prevents dust, particles, oil, water vapor and other impurities from entering the slide rail 4 and stator 5 area, extending the service life of the equipment, preventing foreign objects from jamming the slide rail 4 or damaging the actuator 9 and stator 5, and improving the operational stability of the module.

[0036] In specific implementation, the stator 5 and slide rail 4 are fixedly installed on the support base 3 by fasteners (such as screws), the first slider 8 and the second slider 17 are respectively located at both ends of the body 10, the third slider 18 and the fourth slider 19 are respectively located at both ends of the protrusion 11, the mover 9 is installed on the slide base 7, and the protrusion 11 of the first sliding component 6 is inserted into the clearance groove 12 of the second sliding component 16 for installation.

[0037] 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 short multi-actuator linear motor sliding table structure, comprising a base module (1) and a sliding table module (2) arranged on the base module (1); characterized in that: The base module (1) includes a support base (3) and a slide rail (4) and a stator (5) disposed on the support base (3); the slide module (2) includes a sliding assembly, which includes a slide seat (7), a slider and a mover (9) that cooperate with the slide rail (4). The slider and the mover (9) are both mounted on the slide seat (7). The slide seat (7) includes a body (10) and a protrusion (11) extending from the body (10). The mover (9) is mounted on the protrusion (11). The body (10) is provided with a clearance groove (12) that is adapted to the protrusion (11). There are two sets of sliding assemblies. The protrusion (11) of the first sliding assembly (6) is fitted with the clearance groove (12) of the second sliding assembly (16). The two sets of sliding assemblies are alternately disposed on the base module (1).

2. A short-stroke multi-actuator linear motor slide structure according to claim 1, characterized in that: The slide (7) has a convex structure, with the protrusion (11) and the clearance groove (12) located at both ends of the body (10).

3. A short-stroke multi-actuator linear motor slide structure according to claim 2, characterized in that: The slide module (2) is provided in multiple sets, and the multiple sets of slide modules (2) are installed on the base module (1) at equal intervals along the length direction of the slide rail (4).

4. The short-stroke multi-actuator linear motor slide structure of claim 1, wherein: The stator (5) is provided in two sets, and the two sets of stators (5) are installed in parallel on the support base (3). The two sets of sliding components are respectively configured to cooperate with the two sets of stators (5).

5. The short-stroke multi-actuator linear motor slide structure of claim 1, wherein: The support base (3) is provided with a displacement sensor (20) for detecting the displacement position of the sliding component. Multiple sets of displacement sensors (20) are provided, and the multiple sets of displacement sensors (20) are equally spaced along the length direction of the slide rail (4).

6. The short-stroke multi-actuator linear motor slide structure of claim 1, wherein: The sliding assembly is provided with a limit switch (21). The limit switch (21) includes a grating ruler (22) and a grating reader (23) respectively disposed on both sides of the slide block (7). The grating reader (23) is electrically connected to the mover (9). The grating ruler (22) of the first sliding assembly (6) triggers the grating reader (23) of the second sliding assembly (16), and the grating reader (23) controls the second sliding assembly (16) to stop moving.

7. The short-stroke multi-actuator linear motor slide structure of claim 1, wherein: The stator (5) has multiple magnetic modules, which are arranged along the length of the slide rail (4). The magnetic modules are permanent magnets arranged in a Helbeck array.

8. The short-stroke multi-actuator linear motor slide structure of claim 1, wherein: The support base (3) is provided with a first anti-collision strip (24). There are two sets of the first anti-collision strip (24). The two sets of the first anti-collision strip (24) are located at both ends of the support base (3). One end of the first anti-collision strip (24) is installed on the support base (3), and the other end of the first anti-collision strip (24) abuts against the slide module (2).

9. The short-stroke multi-actuator linear motor slide structure of claim 1, wherein: The sliding assembly is provided with a second anti-collision strip (25), one end of which is mounted on the slide block (7), and the other end of which abuts against the adjacent sliding assembly.

10. The short-stroke multi-actuator linear motor slide structure of claim 1, wherein: The short multi-actuator linear motor slide structure also includes a dustproof mechanism (27) set on the base module (1). The dustproof mechanism (27) includes two sets of side frames (28) respectively set at both ends of the support base (3) and a dustproof cover plate (29) installed between the two sets of side frames (28). The slide base (7) is provided with an installation groove (30) through which the dustproof cover plate (29) passes.

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