Circulating conveying platform

Abstract

The invention discloses a circulating conveying platform, and relates to the technical field of precise conveying equipment, and the circulating conveying platform comprises a base, a circulating guide rail, a coil assembly and a plurality of rotor sliding blocks; the circulating guide rail is arranged on the base and provided with a mounting groove, and at least one groove side wall of the mounting groove is a circulating mounting wall; the coil assembly comprises a plurality of driving coils, and the driving coils are distributed in the extending direction of the circulating mounting wall in an array mode; the plurality of mover sliding blocks are distributed at intervals along the extending direction of the circulating guide rail, each mover sliding block comprises a sliding part and a magnetic part, and the magnetic part is connected to the sliding part and is arranged corresponding to the at least one driving coil; an air channel pipeline is formed in the circulating guide rail, air injection holes communicated with the air channel pipeline are formed in the surface of the circulating guide rail, and air flow in the air channel pipeline is injected to the sliding part from the air injection holes so that the sliding part and the magnetic part can be in a suspended state relative to the circulating guide rail. According to the scheme, the gas path pipeline and coil winding risk can be reduced, and meanwhile the repeated positioning precision can be greatly improved.

Description

Technical Field

[0001] This invention relates to the field of precision conveying equipment technology, and in particular to a circulating conveying platform. Background Technology

[0002] The circulating conveyor platform has multiple workstations, which can significantly improve the production efficiency of the assembly line and has been widely used in industrial scenarios such as packaging and food.

[0003] In related technologies, in order to improve the repeatability of the cyclic conveying platform and reduce the impact of frictional micro-creep, magnetic levitation or air flotation is often used as a guide in high-precision scenarios. Air flotation technology is more popular because of its low cost and low operation difficulty. However, in existing precision cyclic conveying platforms, the air pipes and coils are usually installed on the mover slider. The air pipes and coils move with the mover slider, which has a serious risk of entanglement. At the same time, the air pipes are subject to external forces such as elastic stress, which affect the repeatability of the positioning. Summary of the Invention

[0004] The main objective of this invention is to propose a circulating conveying platform, which aims to provide a circulating conveying platform for use in high-precision environments, thereby reducing the risk of air pipe and coil entanglement, while significantly improving repeatability positioning accuracy.

[0005] To achieve the above objectives, the present invention proposes a circulating conveying platform, comprising: Base; A circulating guide rail is provided on the base and has a mounting groove, wherein at least one side wall of the mounting groove is a circulating mounting wall; A coil assembly is disposed on the circulating guide rail and includes a plurality of drive coils, the plurality of drive coils being arrayed along the extension direction of the circulating mounting wall; Multiple movable sliders are spaced apart along the extension direction of the circulating guide rail. Each movable slider includes a sliding member and a magnetic member. The magnetic member is connected to the sliding member and is correspondingly arranged with at least one of the driving coils. The circulating guide rail has an air passage formed inside it, and the surface of the circulating guide rail is provided with a jet hole that communicates with the air passage. The airflow in the air passage is sprayed from the jet hole to the sliding member, so that the sliding member and the magnetic member are suspended relative to the circulating guide rail.

[0006] In one embodiment, the slider includes: A pressure plate, located at the top of the circulating guide rail; An outer side plate, located on the outer side and bottom of the circulating guide rail, and connected to the outer side of the pressure plate; The inner side plate is located on the inner side and bottom of the circulating guide rail and is connected to the inner side edge of the pressure plate. The circulating guide rail is provided with air jet holes on the surfaces facing the pressure plate, the outer side plate, and the inner side plate.

[0007] In one embodiment, the top surface of the circulation guide rail faces the pressure plate, and the top surface of the circulation guide rail is provided with at least two rows of air jet holes; The outer surface and part of the bottom surface of the circulation guide rail face the outer plate. The outer surface of the circulation guide rail is provided with at least two rows of air jet holes, and the part of the bottom surface of the circulation guide rail facing the outer plate is provided with at least one row of air jet holes. The inner surface and part of the bottom surface of the circulation guide rail face the inner side plate. The inner surface of the circulation guide rail is provided with at least two rows of air jet holes, and the part of the bottom surface of the circulation guide rail facing the inner side plate is provided with at least one row of air jet holes. Each row of jet holes is spaced apart along the extension direction of the circulation guide.

[0008] In one embodiment, the opening of the mounting groove faces the top of the circulating guide rail, and the pressure plate is located above the mounting groove; The pressure plate has a mounting plate on the side near the mounting groove. The mounting plate extends into the mounting groove and has a mounting surface. The mounting surface is opposite to the circulating mounting wall, and the magnetic component is located on the mounting surface.

[0009] In one embodiment, the two opposite sidewalls of the mounting slot are both circular mounting walls, and each of the two circular mounting walls is provided with a plurality of drive coils arranged in an array. The mounting plate has mounting surfaces on both sides facing away from it, and magnetic elements are provided on both mounting surfaces. The two mounting surfaces are respectively arranged opposite to the two circulating mounting walls.

[0010] In one embodiment, each of the mounting surfaces is provided with a plurality of magnetic elements arranged in an array along the extension direction of the mounting surface.

[0011] In one embodiment, a moving inductor is provided at the bottom of the mounting plate, and a position sensor is provided on the bottom wall of the mounting groove. The moving inductor and the position sensor are arranged opposite to each other.

[0012] In one embodiment, a magnetic shielding plate is provided between the bottom of the mounting plate and the moving inductor, the magnetic shielding plate extending below the magnetic element and the drive coil.

[0013] In one embodiment, the mover inductor has an excitation coil inside, and the position sensor has a sine / cosine inductor coil inside.

[0014] In one embodiment, a plurality of air passages are formed within the circulation guide rail, and the plurality of air passages are arranged in an array along the extension direction of the circulation guide rail; each air passage is connected to at least one jet hole and at least one air inlet hole.

[0015] In one embodiment, the circulating conveying platform further includes a support base, and the circulating guide rail is mounted on the base via the support base; The support base has multiple air inlet pipes, and the air outlets of the multiple air inlet pipes are respectively connected to the air inlet holes of the multiple air passage pipes. The side wall of the support base is provided with multiple air inlets, and the external air supply equipment is used to introduce airflow into the multiple air intake pipes through the multiple air inlets.

[0016] In one embodiment, the air outlet is located at the top of the support base, the air inlet is located at the bottom of the circulation guide rail, and the air outlet is connected to the air inlet via an adapter.

[0017] In one embodiment, the outlet end of the jet nozzle is chamfered; Alternatively, the outlet end of the jet hole may be provided with a cavity expansion structure, the cross-sectional area of ​​which is larger than the cross-sectional area of ​​the jet hole.

[0018] In one embodiment, in the corresponding slider, magnetic element, and drive coil, the center of gravity of the slider, the center of the magnetic element, and the center of the drive coil are all located at the same horizontal height.

[0019] The technical solution of this invention forms an air passage within a circulating guide rail and provides jet holes communicating with the air passage on the surface of the circulating guide rail. Airflow from the air passage can be sprayed onto the sliding component through the jet holes, causing the sliding component and magnetic component to be suspended relative to the circulating guide rail. This air-bearing method reduces the impact of frictional micro-creep. Furthermore, by placing the drive coil on the circulating guide rail and the magnetic component on the sliding component, when current is applied to the drive coil, the magnetic component connected to the sliding component interacts electromagnetically with the corresponding drive coil, generating an electromagnetic force. Under the action of this electromagnetic force, the corresponding moving slider slides clockwise or counterclockwise along the extension direction of the circulating guide rail, thereby driving the load connected to the moving slider to circulate and transport along the circulating guide rail. Since both the air passage and the drive coil are located on the circulating guide rail, they do not move with the moving slider, reducing the risk of air passage and coil entanglement. It also eliminates the problem of external forces such as elastic stress generated during the movement of the air passage and drive coil affecting repeatability, significantly improving repeatability and enabling application in high-precision environments. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of an embodiment of the circulating conveying platform provided by the present invention; Figure 2 A cross-sectional view of an embodiment of the circulating conveying platform provided by the present invention; Figure 3 for Figure 2 A magnified view of a portion of the image; Figure 4 for Figure 2 A magnified view of a portion of the image; Figure 5 A schematic diagram of the moving slider in one embodiment of the circulating conveying platform provided by the present invention; Figure 6 A partial top view of the circulating guide rail and coil assembly in one embodiment of the circulating conveying platform provided by the present invention; Figure 7 A schematic diagram of the support base in one embodiment of the circulating conveying platform provided by the present invention; Figure 8 A cross-sectional view of a support base in one embodiment of the circulating conveying platform provided by the present invention; Figure 9 A schematic diagram of the position sensor in one embodiment of the cyclic conveying platform provided by the present invention.

[0022] Explanation of icon numbers:

[0023] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0027] The circulating conveyor platform has multiple workstations, which can significantly improve the production efficiency of the assembly line and has been widely used in industrial scenarios such as packaging and food.

[0028] In related technologies, in order to improve the repeatability of the cyclic conveying platform and reduce the impact of frictional micro-creep, magnetic levitation or air flotation is often used as a guide in high-precision scenarios. Air flotation technology is more popular because of its low cost and low operation difficulty. However, in existing precision cyclic conveying platforms, the air pipes and coils are usually installed on the mover slider. The air pipes and coils move with the mover slider, which has a serious risk of entanglement. At the same time, the air pipes are subject to external forces such as elastic stress, which affect the repeatability of the positioning.

[0029] To address the aforementioned problems, this invention proposes a circulating conveying platform 100, aiming to provide a circulating conveying platform 100 applicable in high-precision environments. This platform can reduce the risk of entanglement between the pneumatic pipe 22 and the coil, while significantly improving repeatability positioning accuracy. The specific structure of the circulating conveying platform 100 will be described in detail below: Please see Figures 1 to 6In one embodiment of the present invention, the circulating conveying platform 100 includes a base 10, a circulating guide rail 20, a coil assembly 30, and a plurality of movable sliders 31; the circulating guide rail 20 is disposed on the base 10 and has a mounting groove 21, at least one sidewall of the mounting groove 21 being a circulating mounting wall 211; the coil assembly 30 is disposed on the circulating guide rail 20 and includes a plurality of driving coils 31, which are arrayed along the extension direction of the circulating mounting wall 211; the plurality of movable sliders 31 are spaced apart along the extension direction of the circulating guide rail 20, and each movable slider 31 includes a sliding member 41 and a magnetic member 42, the magnetic member 42 being connected to the sliding member 41 and correspondingly disposed with at least one driving coil 31; wherein, an air passage 22 is formed inside the circulating guide rail 20, and the surface of the circulating guide rail 20 is provided with a jet hole 23 communicating with the air passage 22, the airflow in the air passage 22 being sprayed from the jet hole 23 toward the sliding member 41, so that the sliding member 41 and the magnetic member 42 are suspended relative to the circulating guide rail 20.

[0030] It is understood that the technical solution of the present invention forms an air passage 22 in the circulating guide rail 20 and provides an air jet hole 23 on the surface of the circulating guide rail 20 that communicates with the air passage 22. The airflow in the air passage 22 can be sprayed from the air jet hole 23 to the sliding member 41, so that the sliding member 41 and the magnetic member 42 are suspended relative to the circulating guide rail 20. By using air flotation as a guide, the influence of frictional micro-creep can be reduced. Furthermore, by setting the drive coil 31 on the circulating guide rail 20 and the magnetic element 42 on the sliding element 41, when current is applied to the drive coil 31, the magnetic element 42 connected to the sliding element 41 will interact electromagnetically with the corresponding drive coil 31 to generate electromagnetic force. Under the action of electromagnetic force, the corresponding moving slider 31 is driven to slide clockwise or counterclockwise along the extension direction of the circulating guide rail 20, thereby driving the load connected to the moving slider 31 to circulate and transport on the circulating guide rail 20. Since both the air passage 22 and the drive coil 31 are set on the circulating guide rail 20, neither the air passage 22 nor the drive coil 31 will move with the moving slider 31, which can reduce the risk of air passage 22 and coil entanglement. At the same time, it eliminates the problem of the repeatability accuracy being affected by external forces such as elastic stress generated when the air passage 22 and the drive coil 31 move, which can greatly improve the repeatability accuracy and thus can be applied in high-precision environments.

[0031] In this embodiment, the base 10 is used to support and fix structural components such as the circulating guide rail 20, the coil assembly 30, and the mover slider 31. The base 10 can be made of materials such as plastic, metal, or marble. Of course, in some embodiments, in order to increase the weight of the base 10 and improve its stability, the base 10 can be made of marble.

[0032] In some embodiments, in order to further improve the repeatability accuracy, multiple shock absorbers 70 can be provided at the bottom of the base 10 to absorb the vibration generated by the moving slider 31 during the sliding process.

[0033] In practical applications, the circulating guide rail 20 can be a ring-shaped guide rail, a racetrack-shaped guide rail, or other types of enclosed guide rails. The mounting groove 21 of the circulating guide rail 20 can have one sidewall designed as a circulating mounting wall 211, or both opposite sidewalls can be designed as circulating mounting walls 211.

[0034] In some embodiments, the drive coil 31 can be a resin-cured enameled copper wire winding, which can also be in a circular shape. It can be fixed to the circular mounting wall 211 of the circular guide rail 20 by means of bolts or glue, etc., to generate an alternating magnetic field to control the movement of the mover slider 31.

[0035] In some embodiments, the magnetic component 42 can also be designed as an arc shape so that the shape of the magnetic component 42 is consistent with that of the drive coil 31. This increases the electromagnetic induction area between the drive coil 31 and the magnetic component 42, thereby increasing the generated electromagnetic force and thus increasing the thrust of the drive slider 31. The magnetic component 42 can be fixedly installed on the slider 41 by means of bonding, screw connection, snap-fit, etc., to improve the installation reliability of the magnetic component 42.

[0036] In some embodiments, the slider 41 of the moving slider 31 can also be set to be arc-shaped so that the slider 41 can be consistent with the shape of the circulating guide rail 20, so as to avoid collision interference between the slider 41 and the circulating guide rail 20 during the sliding process, thereby ensuring repeatability positioning accuracy.

[0037] Please see Figures 3 to 5 In one embodiment of the present invention, the sliding member 41 includes a pressure plate 411, an outer plate 412, and an inner plate 413; the pressure plate 411 is located at the top of the circulation guide rail 20; the outer plate 412 is located at the outer side and bottom of the circulation guide rail 20 and is connected to the outer side of the pressure plate 411; the inner plate 413 is located at the inner side and bottom of the circulation guide rail 20 and is connected to the inner side of the pressure plate 411; the circulation guide rail 20 is provided with air jet holes 23 on the surfaces facing the pressure plate 411, the outer plate 412, and the inner plate 413.

[0038] This configuration allows air jet holes 23 to be provided on all four surfaces of the circulating guide rail 20: the top surface, the outer surface, the inner surface, and the bottom surface. The airflow in the air passage 22 can be sprayed from each surface of the circulating guide rail 20 onto the pressure plate 411, the outer plate 412, and the inner plate 413, which can better ensure that the sliding member 41 and the magnetic member 42 are suspended relative to the circulating guide rail 20, so that the sliding member 41 will not sink or detach.

[0039] In practical applications, the outer side plate 412 can be connected to the outer side of the pressure plate 411 by means of screws, adhesive, snap-fit, etc., to improve the connection reliability of the outer side plate 412. Similarly, the inner side plate 413 can also be connected to the inner side of the pressure plate 411 by means of screws, adhesive, snap-fit, etc., to improve the connection reliability of the inner side plate 413.

[0040] In some embodiments, the outer side plate 412 may include a first plate and a second plate arranged at an angle. The first plate is located on the outer side of the circulation guide 20 and connected to the outer side of the pressure plate 411. The second plate is located at the bottom of the circulation guide 20 and connected to the side of the first plate away from the pressure plate 411.

[0041] In some embodiments, the inner side plate 413 may include a third plate and a fourth plate arranged at an angle. The third plate is located on the inner side of the circulation guide 20 and is connected to the inner side of the pressure plate 411. The fourth plate is located at the bottom of the circulation guide 20 and is connected to the side of the third plate away from the pressure plate 411.

[0042] Please see Figure 3 , Figure 6 In one embodiment of the present invention, the top surface of the circulation guide rail 20 faces the pressure plate 411, and the top surface of the circulation guide rail 20 is provided with at least two rows of jet holes 23; the outer surface and part of the bottom surface of the circulation guide rail 20 face the outer plate 412, and the outer surface of the circulation guide rail 20 is provided with at least two rows of jet holes 23, and the part of the bottom surface of the circulation guide rail 20 facing the outer plate 412 is provided with at least one row of jet holes 23; the inner surface and part of the bottom surface of the circulation guide rail 20 face the inner plate 413, and the inner surface of the circulation guide rail 20 is provided with at least two rows of jet holes 23, and the part of the bottom surface of the circulation guide rail 20 facing the inner plate 413 is provided with at least one row of jet holes 23; each row of jet holes 23 is spaced apart along the extension direction of the circulation guide rail 20.

[0043] This configuration allows at least two rows of air jet holes 23 to be provided on the top, outer, inner, and bottom surfaces of the circulation guide rail 20, so that the surfaces of the pressure plate 411, outer plate 412, and inner plate 413 of the slider 41 facing the circulation guide rail 20 are each provided with at least two rows of air jet holes 23. This makes the force on each surface of the slider 41 facing the circulation guide rail 20 more uniform, thus preventing the slider 41 from tilting to one side.

[0044] Please see Figures 3 to 5In one embodiment of the present invention, the opening of the mounting groove 21 faces the top of the circulating guide rail 20, and the pressure plate 411 is located above the mounting groove 21; the side of the pressure plate 411 near the mounting groove 21 is provided with a mounting plate 414, the mounting plate 414 extends into the mounting groove 21 and is provided with a mounting surface 4141, the mounting surface 4141 is disposed opposite to the circulating mounting wall 211, and the magnetic component 42 is disposed on the mounting surface 4141.

[0045] With this configuration, by extending a mounting plate 414 from the side of the pressure plate 411 near the mounting groove 21, the mounting plate 414 extends into the mounting groove 21, and the mounting surface 4141 of the mounting plate 414 is positioned opposite to the circulating mounting wall 211 of the mounting groove 21. In this way, the magnetic component 42 can be directly mounted on the mounting surface 4141 of the mounting plate 414, so as to facilitate the installation of the magnetic component 42.

[0046] In practical applications, the mounting surface 4141 can be arc-shaped or other shapes, as long as the magnetic component 42 on the mounting surface 4141 and the drive coil 31 on the circulating mounting wall 211 do not interfere with each other during the sliding process of the movable slider 40.

[0047] Please see Figures 3 to 6 In one embodiment of the present invention, the two opposite sidewalls of the mounting groove 21 are both circulating mounting walls 211, and multiple driving coils 31 are arranged in an array on both circulating mounting walls 211; the two back surfaces of the mounting plate 414 are both provided with mounting surfaces 4141, and magnetic elements 42 are provided on both mounting surfaces 4141, and the two mounting surfaces 4141 are respectively arranged opposite to the two circulating mounting walls 211.

[0048] This configuration allows the drive coil 31 on one of the circulating mounting walls 211 to interact electromagnetically with the magnetic element 42 on one of the mounting surfaces 4141, generating a first electromagnetic force. Simultaneously, the drive coil 31 on the other circulating mounting wall 211 interacts electromagnetically with the magnetic element 42 on the other mounting surface 4141, generating a second electromagnetic force. The first and second electromagnetic forces are in the same direction, thus superimposing to form a total electromagnetic force. Under the action of the total electromagnetic force, the mover slider 31 can be driven to slide clockwise or counterclockwise on the circulating guide rail 20. This enhances the electromagnetic force driving the mover slider 31, allowing it to be driven well even with a small input current.

[0049] In practical applications, each mounting surface 4141 of the mounting plate 414 may have one magnetic element 42 or at least two magnetic elements 42.

[0050] Please see Figure 5In one embodiment of the present invention, each mounting surface 4141 is provided with a plurality of magnetic elements 42 arranged in an array along the extending direction of the mounting surface 4141.

[0051] This configuration allows each mounting surface 4141 of the slider 41 to engage with multiple drive coils 31 on the circulating guide rail 20 via multiple magnetic components 42, thereby further enhancing the electromagnetic force driving the slider 31 to move.

[0052] Please see Figures 4 to 5 In one embodiment of the present invention, a moving inductor 415 is provided at the bottom of the mounting plate 414, and a position sensor 24 is provided on the bottom wall of the mounting groove 21. The moving inductor 415 and the position sensor 24 are arranged opposite to each other.

[0053] With this configuration, when the mover inductor 415 slides above the position sensor 24, it will generate an induced current to record the current position of the mover slider 31. This allows for real-time and accurate acquisition of the position of the mover slider 31, thereby improving the accuracy of the cyclic conveying platform 100 in driving the corresponding load movement.

[0054] Please see Figures 4 to 5 In one embodiment of the present invention, a magnetic shielding plate 416 is provided between the bottom of the mounting plate 414 and the moving inductor 415, and the magnetic shielding plate 416 extends to the bottom of the magnetic component 42 and the drive coil 31.

[0055] This configuration, with the magnetic shielding plate 416, reduces the impact of the magnetic field generated by the magnetic component 42 and the drive coil 31 on the mover inductor 415 and the position sensor 24, thereby improving the accuracy of position feedback and the reliability of the system.

[0056] In some embodiments, the mover inductor 415 can be fixed to the underside of the magnetic shielding plate 416 by means of glue or bolts, etc., for exciting inductance signals and providing feedback on the real-time position of the mover slider 31.

[0057] Please see Figures 4 to 5 , Figure 9 In one embodiment of the present invention, the mover inductor 415 is provided with an excitation coil inside, and the position sensor 24 is provided with a sine and cosine inductor coil inside.

[0058] This setup, by using a combination of an excitation coil and a sine / cosine inductor coil, eliminates the need for external power and simultaneously improves the accuracy of real-time acquisition of the mover's sliding position.

[0059] Please see Figure 3 , Figure 6In one embodiment of the present invention, a plurality of air passages 22 are formed in the circulation guide rail 20, and the plurality of air passages 22 are arranged in an array along the extension direction of the circulation guide rail 20; each air passage 22 is connected to at least one jet hole 23 and at least one air inlet 25.

[0060] With this configuration, by employing multiple air passages 22, and ensuring that each air passage 22 is connected to at least one jet hole 23 and at least one air inlet 25, the airflow enters the air passage 22 through the air inlet 25 and flows from the air passage 22 to at least one jet hole 23 connected to it, and then sprays from the jet hole 23 to the sliding member 41. This design ensures that the airflow intensity ejected from each jet hole 23 is more uniform, so that the sliding member 41 and the magnetic member 42 are in a more stable suspended state relative to the circulating guide rail 20.

[0061] Please see Figures 1 to 2 , Figures 7 to 8 In one embodiment of the present invention, the circulating conveying platform 100 further includes a support base 50, and the circulating guide rail 20 is installed on the base 10 through the support base 50; a plurality of air inlet pipes 51 are formed in the support base 50, and the air outlets 52 of the plurality of air inlet pipes 51 are respectively connected to the air inlet holes 25 of the plurality of air passage pipes 22; a plurality of air inlets 53 are provided on the side wall of the support base 50, and an external air supply device is used to introduce airflow into the plurality of air inlet pipes 51 through the plurality of air inlets 53 respectively.

[0062] This configuration, employing the support base 50 design, allows the circulating guide rail 20 to be supported, thereby improving the installation reliability of the circulating guide rail 20. Simultaneously, multiple air inlet pipes 51 can be formed within the support base 50, allowing the air inlet pipes 51 to connect with the air inlet holes 25 of the air passage pipes 22 via the air outlet holes 52. An external air supply device provides airflow, enabling the airflow to enter the air inlet pipes 51 through the air inlet holes 53, and then enter the corresponding air passage pipes 22 through the air outlet holes 52 and the air inlet holes 25. This provides a continuous and stable airflow to multiple air passage pipes 22, resulting in a more stable airflow ejected from the corresponding jet holes 23.

[0063] Please see Figures 2 to 3 , Figures 7 to 8 In one embodiment of the present invention, the air outlet 52 is located at the top of the support base 50, the air inlet 25 is located at the bottom of the circulation guide rail 20, and the air outlet 52 is connected to the air inlet 25 through the adapter 60.

[0064] With this configuration, during assembly, an adapter 60 can be installed at the air outlet 52 or the air inlet. When the circulation guide rail 20 is installed on the support base 50, the air outlet 52 on the top of the support base 50 and the air inlet 25 on the bottom of the circulation guide rail 20 can be aligned and connected. At the same time, the adapter 60 is used to connect the air outlet 52 and the air inlet 25 to ensure a precise connection between them.

[0065] In some embodiments, the adapter 60 can be a soft adapter made of materials such as rubber or silicone, which makes it easier to connect the air outlet 52 and the air inlet 25, and at the same time improves the sealing between the air outlet 52 and the air inlet 25.

[0066] Please see Figure 3 In one embodiment of the present invention, the outlet end of the jet hole 23 is provided with a chamfer 231; or, the outlet end of the jet hole 23 is provided with a cavity expansion structure, the cross-sectional area of ​​the cavity expansion structure being larger than the cross-sectional area of ​​the jet hole 23.

[0067] In this embodiment, the chamfer 231 design can enlarge the cross-sectional area of ​​the air outlet end of the jet hole 23. In addition, the cavity expansion structure design can also enlarge the cross-sectional area of ​​the air outlet end of the jet hole 23. This design allows the airflow to be sprayed from the larger cross-sectional area outlet end of the jet hole 23 onto the slider 41, which can greatly increase the load-bearing capacity of the jet hole 23 on the slider 41, thereby improving the stability of the slider 41 and the magnetic component 42 in the suspended state.

[0068] It should be noted that the cavity expansion structure refers to the cavity connected to the jet hole 23. The cross-sectional area of ​​the cavity is larger than that of the jet hole 23. Specifically, the cavity expansion structure can be formed by expanding the peripheral wall of the jet hole 23 at the outlet end.

[0069] Please see Figure 3 In one embodiment of the present invention, in the corresponding slider 41, magnetic element 42 and driving coil 31, the center of gravity of slider 41, the center of magnetic element 42 and the center of driving coil 31 are all located at the same horizontal height.

[0070] By setting the slider 41, the center of the magnetic component 42, and the center of the drive coil 31 to be at the same horizontal level, the magnetic bias torque of the slider 31 during start-up and stop can be reduced, thereby further improving the repeatability accuracy.

[0071] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A circulating conveyor platform, characterized by, The utility model relates to a kind of magnetic levitation system, including: Base; Circulating guide rail, the circulating guide rail is located in the base, and is equipped with mounting slot, at least one slot side wall of the mounting slot is circulating installation wall; Coil assembly, the coil assembly is located in the circulating guide rail, and includes multiple drive coils, multiple the drive coils are arrayed along the extension direction of the circulating installation wall; Multiple movers, multiple the movers are spaced along the extension direction of the circulating guide rail, and the mover includes slider and magnetic piece, the magnetic piece is connected to the slider, and is arranged with at least one the drive coil; Wherein, the circulating guide rail is formed with air path pipeline in it, the surface of the circulating guide rail is equipped with air jet hole being communicated with the air path pipeline, air flow in the air path pipeline is jetted from the air jet hole to the slider, to make the slider and the magnetic piece be in suspended state relative to the circulating guide rail.

2. The circulating conveyor platform of claim 1, wherein, The slider includes: Pressing plate, the pressing plate is located at the top of the circulating guide rail; Outer side plate, the outer side plate is located at the outer side and bottom of the circulating guide rail, and is connected with the outer side of the pressing plate; Inner side plate, the inner side plate is located at the inner side and bottom of the circulating guide rail, and is connected with the inner side of the pressing plate; The surface of the circulating guide rail towards the pressing plate, the outer side plate and the inner side plate is equipped with the air jet hole.

3. The circulating conveyor platform of claim 2, wherein, The top surface of the circulating guide rail is towards the pressing plate, and is equipped with at least two rows of air jet holes; The outer side surface and part of the bottom surface of the circulating guide rail are towards the outer side plate, and the outer side surface of the circulating guide rail is equipped with at least two rows of air jet holes, and part of the bottom surface of the circulating guide rail towards the outer side plate is equipped with at least one row of air jet holes; The inner side surface and part of the bottom surface of the circulating guide rail are towards the inner side plate, and the inner side surface of the circulating guide rail is equipped with at least two rows of air jet holes, and part of the bottom surface of the circulating guide rail towards the inner side plate is equipped with at least one row of air jet holes; Each row of air jet holes is spaced along the extension direction of the circulating guide rail.

4. The circulating conveyor platform of claim 2, wherein, The slot mouth of the mounting slot is towards the top of the circulating guide rail, and the pressing plate is located above the mounting slot; The side of the pressing plate close to the mounting slot is equipped with mounting plate, the mounting plate extends into the mounting slot, and is equipped with mounting surface, the mounting surface is oppositely arranged with the circulating installation wall, and the magnetic piece is arranged on the circulating mounting surface.

5. The circulating conveyor platform of claim 4, wherein, Two slot side walls of the mounting slot are all the circulating installation wall, and multiple drive coils arrayed are arranged on two circulating installation walls; Two plate surfaces opposite to the mounting plate are all equipped with the mounting surface, and the magnetic piece is arranged on two mounting surfaces, and two mounting surfaces are oppositely arranged with two circulating installation walls respectively.

6. The circulating conveyor platform of claim 5, wherein, Multiple the magnetic pieces arrayed along the extension direction of the mounting surface are arranged on each mounting surface.

7. The circulating conveyor platform of claim 4, wherein, The bottom of the mounting plate is equipped with mover inductor, and the slot bottom wall of the mounting slot is equipped with position sensor, and the mover inductor is oppositely arranged with the position sensor.

8. The circulating conveyor platform of claim 7, wherein, The bottom of the mounting plate and the mover inductor are equipped with magnetic separation plate, and the magnetic separation plate extends below the magnetic piece and the drive coil.

9. The circulating conveyor platform of claim 7, wherein, The mover inductor is internally provided with an exciting coil, and the position sensor is internally provided with a positive and sine inductive coil.

10. The circulating delivery platform of any one of claims 1 to 9, wherein, A plurality of air passage pipes are formed in the circulating guide rail, and the air passage pipes are arrayed along the extension direction of the circulating guide rail; each air passage pipe is communicated with at least one air jet hole and at least one air inlet hole.

11. The endless conveyor platform of claim 10, wherein, The circulating conveying platform further comprises a support base, and the circulating guide rail is installed on the base through the support base; A plurality of air inlet pipes are formed in the support base, and the air outlet holes of the air inlet pipes are respectively communicated with the air inlet holes of the air passage pipes; The side wall of the support base is provided with a plurality of air inlet holes, and an external air supply device is used to introduce air flow into the air inlet pipes through the air inlet holes.

12. The circulating conveyor platform of claim 11, wherein, The air outlet holes are arranged on the top of the support base, and the air inlet holes are arranged on the bottom of the circulating guide rail; the air outlet holes are connected with the air inlet holes through an adapter.

13. The circulating delivery platform of any one of claims 1 to 9, wherein, The air outlet end of the air jet hole is provided with a chamfer; Alternatively, the air outlet end of the air jet hole is provided with an expansion cavity structure, and the cross-sectional area of the expansion cavity structure is larger than that of the air jet hole.

14. The circulating delivery platform of any one of claims 1 to 9, wherein, In the corresponding slider, magnetic piece and drive coil, the center of gravity of the slider, the center of the magnetic piece and the center of the drive coil are at the same horizontal height.

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