Motion platform and perovskite coating device

Abstract

The utility model relates to a motion platform and a perovskite coating device. The motion platform comprises a platform base and a motion frame, the first guide mechanism comprises a first rail and a first air bearing, the first rail is arranged on the platform base, the first air bearing is installed on the moving frame and located between the first rail and the moving frame, and the first air bearing is used for forming an air film between the first air bearing and the first rail and bearing first air buoyancy force for supporting the moving frame on the first rail; the first pre-tightening mechanism comprises a first magnetic attraction part installed on the moving frame and a first magnetic attraction matching part installed on the platform base, and the first magnetic attraction part and the first magnetic attraction matching part generate a magnetic attraction effect so that the first magnetic attraction part can bear first magnetic attraction force opposite to the first air buoyancy force in direction.

Description

Technical Field

[0001] The utility model relates to the technical field of perovskite coating, in particular to a motion platform and a perovskite coating device. Background Art

[0002] Solar energy is abundant in resources, green, environmentally friendly and pollution-free. It is one of the new energy sources that is expected to be widely used in the future. In the field of new solar cells, the rapid development of perovskite solar cells in recent years has attracted widespread attention from the scientific research and industrial circles. In the process of preparing perovskite solar cells, it is necessary to coat the perovskite slurry on the substrate (such as glass). Due to the large coating area, thin coating and low viscosity of the slurry, the coating process is difficult.

[0003] Since the perovskite coating is thin, the size of the liquid bridge between the coating head and the substrate is very small during coating. The slight vibration of the coating device will destroy the liquid bridge, which will have an adverse effect on the perovskite coating. However, when the traditional linear guide starts to move, the ball or roller of the linear guide will convert static friction into dynamic friction. During the conversion process, a weak impact will be generated, which may break the liquid bridge and cause serious adverse effects on the coating quality. Utility Model Content

[0004] Based on this, it is necessary to provide a motion platform and perovskite coating device to improve the above defects in order to address the problem that when the linear guide in the prior art starts to move, the static friction force of the ball or roller of the linear guide is converted into dynamic friction force, and a weak impact will be generated during the conversion process, which may break the liquid bridge and cause serious adverse effects on the coating quality.

[0005] A sports platform, comprising:

[0006] platform base and sports frame;

[0007] a first guide mechanism, comprising a first track and a first air bearing, wherein the first track is arranged on the platform base, the first air bearing is mounted on the motion frame and is located between the first track and the motion frame, the first air bearing is used to form an air film between the first track and the first track, and bear a first air buoyancy force that supports the motion frame on the first track; and

[0008] The first pre-tightening mechanism includes a first magnetic component installed on the moving frame and a first magnetic matching component installed on the platform base. The first magnetic component and the first magnetic matching component generate a magnetic attraction so that the first magnetic component is subjected to a first magnetic force opposite to the direction of the first air buoyancy force.

[0009] In one embodiment, the first pre-tightening mechanism includes at least two groups, each group of the first pre-tightening mechanism includes the first magnetic attraction component and the first magnetic attraction matching component that generate magnetic attraction to each other, and at least one group of the first pre-tightening mechanism is arranged on both sides of the first track.

[0010] In one embodiment, the motion platform further includes a first driving member, which is disposed between the motion frame and the first track and is used to drive the motion frame to move along a longitudinal extension direction of the first track.

[0011] In one embodiment, the first pre-tensioning mechanism also includes a first connecting member, the first connecting member includes a first extension portion and a first abutting portion connected to one end of the first extension portion, the first magnetic fitting member is connected to an end of the first extension portion away from the first abutting portion, the first magnetic fitting member abuts against a side of the platform base where the first track is provided, and the first abutting portion abuts against a side of the platform base away from the first track.

[0012] In one embodiment, the motion platform further includes a second guide mechanism and a second pre-tightening mechanism, the second guide mechanism includes a second track and a second air bearing, the second track is arranged on the platform base and is parallel to the longitudinal extension direction of the first track, the second air bearing is installed on the motion frame and is located between the second track and the motion frame, the second air bearing is used to form an air film between the second track and the second air bearing, and bear the second air buoyancy force that supports the motion frame on the second track;

[0013] The second pre-tightening mechanism includes a second magnetic component installed on the moving frame and a second magnetic matching component installed on the platform base. The second magnetic component and the second magnetic matching component generate a magnetic attraction so that the second magnetic component is subjected to a second magnetic force opposite to the direction of the second air buoyancy force.

[0014] In one embodiment, the second pre-tightening mechanism includes at least two groups, each group of the second pre-tightening mechanism includes the second magnetic attraction component and the second magnetic attraction matching component that generate magnetic attraction to each other, and at least one group of the second pre-tightening mechanism is arranged on both sides of the second track.

[0015] In one embodiment, the first guide mechanism further comprises a third air bearing mounted on the motion frame, the third air bearing being located on the side of the first track facing the second track, the third air bearing being used to generate an air film between the first track and the third air bearing and to withstand a third air buoyancy force directed from the first track to the second track;

[0016] The second guide mechanism also includes a fourth air bearing installed on the moving frame, the fourth air bearing is located on the side of the second track facing the first track, the fourth air bearing is used to form an air film between the second track and the fourth air bearing, and to withstand a fourth air buoyancy force directed from the second track to the first track.

[0017] In one embodiment, the first guide mechanism also includes a movable part and a pre-tensioning elastic part, the movable part is movably connected to the moving frame, the third air bearing is installed on the movable part, and the pre-tensioning elastic part abuts between the movable part and the moving frame to provide a pre-tensioning force that enables the movable part to have a movement tendency to drive the third air bearing to move closer to the first track.

[0018] In one embodiment, the second pre-tensioning mechanism also includes a second connecting member, the second connecting member includes a second extension portion and a second abutting portion connected to one end of the second extension portion, the second magnetic fitting member is connected to an end of the second extension portion away from the second abutting portion, the second magnetic fitting member abuts against a side of the platform base on which the first rail and the second rail are provided, and the second abutting portion abuts against a side of the platform base away from the first rail and the second rail.

[0019] In one embodiment, the first guide mechanism further includes a first mounting seat connected to the motion frame, and the second guide mechanism further includes a second mounting seat connected to the motion frame;

[0020] The first air bearing is connected to the first mounting seat by a ball joint, and the second air bearing is connected to the second mounting seat by a ball joint.

[0021] In one embodiment, the motion platform further includes a second driving member, which is disposed between the motion frame and the second track and is used to drive the motion frame to move along the longitudinal extension direction of the second track.

[0022] A perovskite coating device comprises a coating mechanism and a motion platform as described in any of the above embodiments, wherein the coating mechanism is arranged on the motion frame.

[0023] When the above-mentioned motion platform and perovskite coating device are actually used, compressed gas is introduced into the first air bearing, so that the first air bearing forms an air film between it and the first track, and the air film generates a first air buoyancy force on the first air bearing, so that the motion frame is supported on the first track under the action of the first air buoyancy force. At the same time, a magnetic attraction is generated between the first magnetic attraction component and the first magnetic attraction matching component, so that a first magnetic attraction force opposite to the first air buoyancy force is generated on the first magnetic attraction component, so that the motion frame is tightened toward the first track under the action of the first magnetic attraction force, so that the air film between the first air bearing and the first track is tightened, which greatly improves the rigidity of the air film and thus improves the impact resistance.

[0024] Compared with the solution using linear guides in the prior art, on the one hand, the first air bearing does not contact the first track, and the first magnetic component does not contact the first magnetic matching component, thereby avoiding external vibration from the platform base to the moving frame; on the other hand, there is no process of converting static friction to dynamic friction when the moving frame moves along the first track, so there is no impact on the movement of the moving frame along the first track; on the other hand, the magnetic effect between the first magnetic component and the first magnetic matching component is utilized to tighten the air film between the moving frame and the first track, which greatly improves the rigidity of the air film, thereby greatly improving the impact resistance of the moving frame, ensuring that the moving frame has a high movement accuracy along the first track, and the liquid bridge formed when the moving frame drives the coating mechanism to perform coating remains stable, thereby improving the coating quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a front view of a motion platform in one embodiment of the utility model;

[0026] Figure 2 for Figure 1 The schematic diagram of the local structure of the motion platform at the first track shown;

[0027] Figure 3 for Figure 1 The schematic diagram of the local structure of the motion platform at the second track shown;

[0028] Figure 4 for Figure 1 A side view of the motion platform shown;

[0029] Figure 5 for Figure 1 The cross-sectional view of the motion platform along the AA direction is shown. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0036] An embodiment of the utility model provides a perovskite coating device, comprising a motion platform and a coating mechanism disposed on the motion platform. The motion platform is used to drive the coating mechanism to translate, and the coating mechanism performs coating in the process of following the translation of the motion platform.

[0037] See also Figure 1 and Figure 2 The moving platform includes a platform base 10, a moving frame 20, a first guide mechanism 30 and a first preload mechanism 40. The first guide mechanism 30 includes a first track 31 and a first air bearing 32. The first track 31 is arranged on the platform base 10, and the first air bearing 32 is installed on the moving frame 20 and is located between the top surface of the first track 31 and the moving frame 20. The first air bearing 32 is used to form an air film between the first air bearing 32 and the top surface of the first track 31, and to withstand the first air buoyancy force that supports the moving frame 20 on the first track 31. In other words, the moving frame 20 is supported on the first track 31 by the first air buoyancy force generated by the first air bearing 32. The above-mentioned coating mechanism is installed on the moving frame 20 to follow the moving frame 20 to translate along the first track 31.

[0038] The first pre-tightening mechanism 40 includes a first magnetic member 41 mounted on the moving frame 20 and a first magnetic matching member 42 mounted on the platform base 10. The first magnetic member 41 and the first magnetic matching member 42 generate a magnetic attraction, so that the first magnetic member 41 is subjected to a first magnetic attraction force opposite to the first air buoyancy force.

[0039] In the above perovskite coating device, when actually used, compressed gas is introduced into the first air bearing 32, so that the first air bearing 32 forms an air film between it and the first track 31, and the air film generates a first air buoyancy force on the first air bearing 32, so that the moving frame 20 is supported on the first track 31 under the action of the first air buoyancy force. At the same time, a magnetic attraction is generated between the first magnetic attraction member 41 and the first magnetic attraction fitting member 42, so that a first magnetic attraction force opposite to the first air buoyancy force is generated on the first magnetic attraction member 41, so that the moving frame 20 is tightened toward the first track 31 under the action of the first magnetic attraction force, so that the air film between the first air bearing 32 and the first track 31 is tightened, which greatly improves the rigidity of the air film, and further improves the impact resistance.

[0040] Compared with the solution using linear guides in the prior art, on the one hand, the first air bearing 32 does not contact the first track 31, and the first magnetic component 41 does not contact the first magnetic matching component 42, thereby avoiding external vibration from the platform base 10 to the moving frame 20; on the other hand, there is no process of converting static friction to dynamic friction when the moving frame 20 moves along the first track 31, so there is no impact on the movement of the moving frame 20 along the first track 31; on the other hand, the magnetic effect between the first magnetic component 41 and the first magnetic matching component 42 is used to tighten the air film between the moving frame 20 and the first track 31, which greatly improves the rigidity of the air film, thereby greatly improving the impact resistance of the moving frame 20, ensuring that the moving frame 20 has a high movement accuracy along the first track 31, and the liquid bridge formed when the coating mechanism follows the moving frame 20 to translate and coat remains stable, so as to improve the coating quality.

[0041] Specifically in the embodiment, the first pre-tightening mechanism 40 also includes a first mounting frame 45 and a first tension detection member 44. The first mounting frame 45 is installed on the moving frame 20 through the first tension detection member 44. The first magnetic attraction member 41 is installed on the first mounting frame 45 and is opposite to the first magnetic attraction matching member 42, so that the first magnetic attraction member 41 and the first magnetic attraction matching member 42 can produce a magnetic attraction. In this way, the first tension detection member 44 is used to detect the size of the first magnetic attraction force, so that the size of the first magnetic attraction force can be monitored, and then when the size of the first magnetic attraction force fluctuates, the operator can eliminate external interference in time until the size of the first magnetic attraction force is maintained at a set value or a set range, ensuring that the device is in a stable operation state.

[0042] Specifically in the embodiment, the first pre-tightening mechanism 40 includes at least two groups, and each group of the first pre-tightening mechanism 40 includes a first magnetic attraction member 41 and a first magnetic attraction fitting member 42 that generate magnetic attraction to each other. At least one group of the first pre-tightening mechanism 40 is arranged on both sides of the first track 31. In this way, a first magnetic attraction force that pulls the moving frame 20 toward the first track 31 is generated on both sides of the first track 31. On the one hand, the tension on the moving frame 20 is strengthened, so that the rigidity of the air film between the first air bearing 32 and the first track 31 is stronger; on the other hand, the force on the moving frame 20 is made more stable, and the moving frame 20 can be more stably supported on the first track 31 to prevent the moving frame 20 from tipping over.

[0043] Specifically in the embodiment, the first pre-tightening mechanism 40 also includes a first connecting member 43, which includes a first extension portion 431 and a first abutting portion 432 connected to one end of the first extension portion 431. The first magnetic attraction fitting member 42 is connected to one end of the first extension portion 431 away from the first abutting portion 432, that is, the first abutting portion 432 and the first magnetic attraction fitting member 42 are respectively fixedly connected to the opposite ends of the first extension portion 431. The first magnetic attraction fitting member 42 abuts against the side of the platform base 10 provided with the first track 31, and the first abutting portion 432 abuts against the side of the platform base 10 away from the first track 31, that is, the first magnetic attraction fitting member 42 and the first abutting portion 432 clamp the platform base 10, thereby preventing the first magnetic attraction fitting member 42 from being sucked away by the first magnetic attraction member 41 and being separated from the platform base 10. In this way, the first extension portion 431 is used to connect the first magnetic fitting component 42 and the first abutting portion 432, and the first abutting portion 432 is abutted against the side of the platform base 10 away from the first magnetic fitting component 42, thereby fixing the first magnetic fitting component 42 on the platform base 10, avoiding the method of opening a hole on the platform base 10 and tightening it with screws to fasten the first magnetic fitting component 42.

[0044] Specifically in the embodiment, the first magnetic attraction fitting 42 extends along the longitudinal direction of the first track 31, so that the first magnetic attraction fitting 41 can always maintain the magnetic attraction between the first magnetic attraction fitting 42 during the process of following the moving frame 20 to move along the first track 31, that is, the moving frame 20 is always pulled tight to the first track 31 to ensure the smooth operation of the moving frame 20. Optionally, the first magnetic attraction fitting 41 can be a magnet, and the first magnetic attraction fitting 42 can be an iron plate.

[0045] See also Figure 1 and Figure 3In an embodiment of the present application, the motion platform further includes a second guide mechanism 50 and a second preload mechanism 60. The second guide mechanism 50 includes a second track 51 and a second air bearing 52. The second track 51 and the first track 31 are both arranged on the platform base 10, and the longitudinal extension directions of the first track 31 and the second track 51 are parallel. The second air bearing 52 is mounted on the motion frame 20 and is located between the top surface of the second track 51 and the motion frame 20. The second air bearing 52 is used to form an air film between the second air bearing 52 and the second track 51, and to withstand the second air buoyancy force that supports the motion frame 20 on the second track 51. That is, the motion frame 20 is supported on the first track 31 and the second track 51 by the first air buoyancy force generated by the first air bearing 32 and the second air buoyancy force generated by the second air bearing 52, respectively.

[0046] The second pre-tightening mechanism 60 includes a second magnetic member 61 mounted on the moving frame 20 and a second magnetic matching member 62 mounted on the platform base 10. The second magnetic member 61 and the second magnetic matching member 62 generate a magnetic attraction so that the second magnetic member 61 is subjected to a second magnetic attraction force opposite to the second air buoyancy force.

[0047] In this way, during actual use, compressed gas is introduced into the first air bearing 32 and the second air bearing 52, so that the first air bearing 32 forms an air film between it and the top surface of the first track 31, and the air film generates an upward first air buoyancy force on the first air bearing 32; the second air bearing 52 also forms an air film between it and the top surface of the second track 51, and the air film generates an upward second air buoyancy force on the second air bearing 52, so that the moving frame 20 is supported on the first track 31 and the second track 51 under the action of the first air buoyancy force and the second air buoyancy force. A magnetic attraction is generated between the first magnetic component 41 and the first magnetic matching component 42, thereby generating a first magnetic attraction force opposite to the first air buoyancy force on the first magnetic component 41 (i.e., the first magnetic attraction force is downward), so that under the action of the first magnetic attraction force, the moving frame 20 is pulled toward the first track 31, so that the air film between the first air bearing 32 and the first track 31 is tightened; similarly, a magnetic attraction is generated between the second magnetic component 61 and the second magnetic matching component 62, thereby generating a second magnetic attraction force opposite to the second air buoyancy force on the second magnetic component 61 (i.e., the second magnetic attraction force is downward), so that under the action of the second magnetic attraction force, the moving frame 20 is pulled toward the second track 51, so that the air film between the second air bearing 52 and the second track 51 is tightened, which greatly improves the rigidity of the air film and thus improves the impact resistance.

[0048] It should be noted that the moving frame 20 is supported on the first track 31 and the second track 51 by the first air bearing 32 and the second air bearing 52, so that the moving frame 20 moves more smoothly and with higher movement accuracy. It is understandable that during the coating operation of the moving frame, the combined force of the first air buoyancy force and the second air buoyancy force is equal in magnitude and opposite in direction to the combined force of the first magnetic attraction force, the second magnetic attraction force and the gravity of the moving frame itself, so that the moving frame 20 is in a state of force balance in the direction of gravity.

[0049] Specifically in the embodiment, the second pre-tightening mechanism 60 also includes a second mounting frame 65 and a second tension detection member 64. The second mounting frame 65 is mounted on the moving frame 20 through the second tension detection member 64. The second magnetic attraction member 61 is mounted on the second mounting frame 65 and is opposite to the second magnetic attraction matching member 62, so that the second magnetic attraction member 61 and the second magnetic attraction matching member 62 can produce a magnetic attraction. In this way, the second tension detection member 64 is used to detect the size of the second magnetic attraction force, so as to monitor the size of the second magnetic attraction force, so that when the size of the second magnetic attraction force fluctuates, the operator can eliminate external interference in time until the size of the second magnetic attraction force is maintained at the set value or the set range, ensuring that the device is in a stable operation state.

[0050] Specifically in the embodiment, the first guide mechanism 30 further includes a first mounting seat 36 connected to the motion frame 20, and the second guide mechanism 50 further includes a second mounting seat 55 connected to the motion frame 20. The first air bearing 32 is connected to the first mounting seat 36 by a ball joint, so that the first air bearing 32 can adaptively rotate relative to the first mounting seat 36, ensuring that the air bearing surface of the first air bearing 32 always remains opposite to the top surface of the first track 31, avoiding air leakage between the first air bearing 32 and the first track 31 due to motion fluctuations (such as large deceleration or acceleration), thereby avoiding collision between the motion frame 20 and the first track 31.

[0051] The second air bearing 52 is connected to the second mounting seat 55 by a ball joint, so that the second air bearing 52 can adaptively rotate relative to the second mounting seat 55, ensuring that the air-floating surface of the second air bearing 52 always remains opposite to the top surface of the second track 51, thereby avoiding leakage of the air film between the second air bearing 52 and the second track 51 due to movement fluctuations (for example, during excessive deceleration or acceleration), thereby avoiding collision between the motion frame 20 and the second track 51.

[0052] See also Figure 4 As shown, optionally, the number of the first air bearings 32 is at least two, and the at least two first air bearings 32 are arranged at intervals along the longitudinal extension direction of the first track 31. Figure 4In the illustrated embodiment, there are two first air bearings 32. It should be noted that the installation methods of the first air bearings 32 can be the same, so they will not be described in detail here.

[0053] Optionally, the number of the second air bearings 52 is at least two, and the at least two second air bearings 52 are arranged at intervals along the longitudinal extension direction of the second track 51. Specifically, the number of the second air bearings 52 is two. It should be noted that the installation method of each second air bearing 52 can be the same, which will not be described in detail here.

[0054] Please continue to see Figure 3 Specifically in the embodiment, the second pre-tensioning mechanism 60 includes at least two groups, and each group of the second pre-tensioning mechanism 60 includes a second magnetic attraction member 61 and a second magnetic attraction matching member 62 that generate magnetic attraction to each other. At least one group of the second pre-tensioning mechanism 60 is arranged on both sides of the second track 51. In this way, a second magnetic attraction force that pulls the moving frame 20 toward the second track 51 is generated on both sides of the second track 51. On the one hand, the tension on the moving frame 20 is strengthened, so that the rigidity of the air film between the second air bearing 52 and the second track 51 is stronger; on the other hand, the force on the moving frame 20 is made more stable, so that the moving frame 20 is stably supported on the second track 51 to prevent the moving frame 20 from tipping over.

[0055] Specifically in the embodiment, the second pre-tightening mechanism 60 also includes a second connecting member 63, which includes a second extension portion 631 and a second abutting portion 632 connected to one end of the second extension portion 631. The second magnetic attraction fitting member 62 is connected to one end of the second extension portion 631 away from the second abutting portion 632, that is, the second abutting portion 632 and the second magnetic attraction fitting member 62 are respectively fixedly connected to the opposite ends of the second extension portion 631. The second magnetic attraction fitting member 62 abuts against a side of the platform base 10 provided with the first track 31 and the second track 51, and the second abutting portion 632 abuts against a side of the platform base 10 away from the first track 31 and the second track 51, that is, the second magnetic attraction fitting member 62 and the second abutting portion 632 clamp the platform base 10, thereby preventing the second magnetic attraction fitting member 62 from being sucked away by the second magnetic attraction member 61 and separated from the platform base 10. In this way, the second extension portion 631 is used to connect the second magnetic fitting component 62 and the second abutment portion 632, and the second abutment portion 632 is abutted against the side of the platform base 10 away from the second magnetic fitting component 62, thereby fixing the second magnetic fitting component 62 on the platform base 10, avoiding the method of opening a hole on the platform base 10 and tightening it with screws.

[0056] Specifically in the embodiment, the second magnetic attraction fitting 62 extends along the longitudinal direction of the second track 51, so that the second magnetic attraction fitting 61 can always maintain the magnetic attraction between the second magnetic attraction fitting 62 (the distance between the second magnetic attraction fitting 61 and the second magnetic attraction fitting 62 is always consistent) during the process of following the moving frame 20 to move along the second track 51, that is, the moving frame 20 is always pulled tight to the second track 51 to ensure the smooth operation of the moving frame 20. Optionally, the second magnetic attraction fitting 61 can be a magnet, and the second magnetic attraction fitting 62 can be an iron plate.

[0057] See also Figures 1 to 3 Specifically in the embodiment, the motion platform further includes a first driving member 70, which is disposed between the motion frame 20 and the first rail 31, and is used to drive the motion frame 20 to move along the longitudinal extension direction of the first rail 31 and the second rail 51. Optionally, the first driving member 70 is a linear motor, a stator 71 of the first driving member 70 is mounted on the first rail 31, and a mover 72 of the first driving member 70 is mounted on the motion frame 20.

[0058] Specifically in the embodiment, the motion platform further includes a second driving member 80, which is disposed between the motion frame 20 and the second track 51, and is used to drive the motion frame 20 to move along the longitudinal extension direction of the first track 31 and the second track 51. In this way, the first driving member 70 and the second driving member 80 are used to synchronously drive the motion frame 20 to move along the first track 31 and the second track 51, so that the translation of the motion frame 20 is more stable. Optionally, the second driving member 80 is a linear motor, and the stator 81 of the second driving member 80 is installed on the second track 51, and the mover 82 of the second driving member 80 is installed on the motion frame 20.

[0059] In the embodiment of the present application, the first guide mechanism 30 further includes a third air bearing 33 mounted on the motion frame 20. The third air bearing 33 is located on the side of the first track 31 facing the second track 51. The third air bearing 33 is used to generate an air film between the third air bearing 33 and the side of the first track 31, and to withstand the third air buoyancy force directed from the first track 31 to the second track 51.

[0060] The second guide mechanism 50 further includes a fourth air bearing 53 mounted on the motion frame 20. The fourth air bearing 53 is located on the side of the second track 51 facing the first track 31. The fourth air bearing 53 is used to form an air film between the fourth air bearing 53 and the side of the second track 51, and to withstand the fourth air buoyancy force directed from the second track 51 to the first track 31.

[0061] In this way, the third air buoyancy force generated by the third air bearing 33 makes the motion frame 20 have a tendency to move from the first track 31 to the second track 51, thereby tightening the air film between the fourth air bearing 53 and the side of the second track 51 to enhance the rigidity of the air film. Similarly, the fourth air buoyancy force generated by the fourth air bearing 53 makes the motion frame 20 have a tendency to move from the second track 51 to the first track 31, thereby tightening the air film between the third air bearing 33 and the side of the first track 31 to enhance the rigidity of the air film, and then under the joint action of the third air bearing 33 and the fourth air bearing 53, the motion frame 20 is bound between the first track 31 and the second track 51, so that the motion frame 20 can translate more smoothly along the first track 31 and the second track 51.

[0062] It is understood that when the motion frame 20 is performing the coating operation, please refer to Figure 1 As shown, the third air buoyancy force and the fourth air buoyancy force are equal in magnitude and opposite in direction, so that the motion frame 20 is in a state of force balance in the left-right direction.

[0063] Furthermore, the first guide mechanism 30 also includes a movable part 34 and a preload elastic part 35. The movable part 34 is movably connected to the moving frame 20, and the third air bearing 33 is mounted on the movable part 34. The preload elastic part 35 abuts between the movable part 34 and the moving frame 20, and is used to provide a preload force that enables the movable part 34 to have a movement tendency to drive the third air bearing 33 to move closer to the first track 31. In this way, the elastic force generated by the compression of the preload elastic part 35, on the one hand, presses the third air bearing 33 toward the first track 31, so that the air film rigidity between the third air bearing 33 and the first track 31 is stronger; on the other hand, presses the moving frame 20 toward the second track 51, so that the air film rigidity between the fourth air bearing 53 and the second track 51 is stronger, further enhancing the impact resistance, improving the movement accuracy of the moving frame 20, and improving the coating quality.

[0064] It should be noted that when there is a deviation in the movement of the moving frame 20 due to processing errors, assembly errors or thermal expansion and contraction of the first rail 31, the second rail 51, the moving frame 20, etc., or due to the asynchronous driving of the first driving member 70 and the second driving member 80, the preloaded elastic member 35 can adaptively perform telescopic adjustment to compensate for the movement deviation of the moving frame 20, thereby greatly reducing the movement deviation of the moving frame 20, improving the movement accuracy of the moving frame 20, and further improving the coating quality.

[0065] Specifically, a mounting hole (marked in the figure) is provided on the moving frame 20, and a guide sleeve (marked in the figure) is sleeved in the mounting hole. The movable member 34 is inserted into the guide sleeve, and the movable member 34 and the guide sleeve are slidably matched, so that the movable member 34 can move along the guide sleeve, thereby driving the third air bearing 33 to approach or move away from the first track 31.

[0066] Optionally, the third air bearing 33 is ball-jointedly connected to the movable part 34, so that the third air bearing 33 can adaptively rotate relative to the movable part 34, ensuring that the air-floating surface of the third air bearing 33 always remains opposite to the side of the first track 31 facing the second track 51, thereby avoiding air leakage between the third air bearing 33 and the first track 31 due to movement fluctuations (for example, during excessive deceleration or acceleration), thereby avoiding collision between the moving frame 20 and the first track 31.

[0067] Optionally, the second guide mechanism 50 also includes a third mounting seat 54, which is fixedly connected to the moving frame 20, and the fourth air bearing 53 is ball-jointedly connected to the third mounting seat 54, so that the fourth air bearing 53 can adaptively rotate relative to the third mounting seat 54, ensuring that the air-floating surface of the fourth air bearing 53 always remains opposite to the side of the second track 51 facing the first track 31, thereby avoiding air leakage between the fourth air bearing 53 and the second track 51 due to movement fluctuations (for example, during excessive deceleration or acceleration), thereby avoiding collision between the moving frame 20 and the second track 51.

[0068] See also Figure 5 As shown, optionally, the number of the third air bearings 33 is at least two, and the at least two third air bearings 33 are arranged at intervals along the longitudinal extension direction of the first track 31. Figure 5 In the illustrated embodiment, there are two third air bearings 33. It should be noted that the installation methods of the third air bearings 33 can be the same, so they will not be described in detail here.

[0069] Optionally, the number of the fourth air bearings 53 is at least two, and the at least two fourth air bearings 53 are arranged at intervals along the longitudinal extension direction of the second track 51. Figure 5 In the illustrated embodiment, there are two fourth air bearings 53. It should be noted that the installation methods of the fourth air bearings 53 can be the same, so they will not be described in detail here.

[0070] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A sports platform, characterized in that: include: platform base and sports frame; A first guide mechanism, comprising a first track and a first air bearing, wherein the first track is arranged on the platform base, the first air bearing is mounted on the motion frame and is located between the first track and the motion frame, the first air bearing is used to form an air film between the first track and the first track, and bear a first air buoyancy force that supports the motion frame on the first track; and The first pre-tightening mechanism includes a first magnetic component installed on the moving frame and a first magnetic matching component installed on the platform base. The first magnetic component and the first magnetic matching component generate a magnetic attraction so that the first magnetic component is subjected to a first magnetic force opposite to the direction of the first air buoyancy force.

2. The motion platform according to claim 1, characterized in that: The first pre-tightening mechanism includes at least two groups, each group of the first pre-tightening mechanism includes the first magnetic attraction component and the first magnetic attraction matching component that generate magnetic attraction to each other, and at least one group of the first pre-tightening mechanism is arranged on both sides of the first track.

3. The motion platform according to claim 1, characterized in that: The motion platform further includes a first driving member, which is disposed between the motion frame and the first track and is used to drive the motion frame to move along the longitudinal extension direction of the first track.

4. The motion platform according to claim 1, characterized in that: The first pre-tensioning mechanism also includes a first connecting member, which includes a first extension portion and a first abutting portion connected to one end of the first extension portion, the first magnetic fitting member is connected to an end of the first extension portion away from the first abutting portion, the first magnetic fitting member abuts against a side of the platform base on which the first track is provided, and the first abutting portion abuts against a side of the platform base away from the first track.

5. The motion platform according to claim 1, characterized in that: The motion platform further includes a second guide mechanism and a second pre-tightening mechanism, the second guide mechanism includes a second track and a second air bearing, the second track is arranged on the platform base and is parallel to the longitudinal extension direction of the first track, the second air bearing is installed on the motion frame and is located between the second track and the motion frame, the second air bearing is used to form an air film between the second track and the second air bearing, and bear the second air buoyancy force that supports the motion frame on the second track; The second pre-tightening mechanism includes a second magnetic component installed on the moving frame and a second magnetic matching component installed on the platform base. The second magnetic component and the second magnetic matching component generate a magnetic attraction so that the second magnetic component is subjected to a second magnetic force opposite to the direction of the second air buoyancy force.

6. The motion platform according to claim 5, characterized in that: The second pre-tightening mechanism includes at least two groups, each group of the second pre-tightening mechanism includes the second magnetic attraction component and the second magnetic attraction matching component that generate magnetic attraction to each other, and at least one group of the second pre-tightening mechanism is arranged on both sides of the second track.

7. The motion platform according to claim 5, characterized in that: The first guide mechanism further includes a third air bearing mounted on the moving frame, the third air bearing being located on the side of the first track facing the second track, the third air bearing being used to generate an air film between the first track and the third air bearing and to withstand a third air buoyancy force directed from the first track to the second track; The second guide mechanism also includes a fourth air bearing installed on the moving frame, the fourth air bearing is located on the side of the second track facing the first track, the fourth air bearing is used to form an air film between the second track and the fourth air bearing, and to withstand a fourth air buoyancy force directed from the second track to the first track.

8. The motion platform according to claim 7, characterized in that: The first guide mechanism also includes a movable part and a pre-tightening elastic part. The movable part is movably connected to the moving frame. The third air bearing is installed on the movable part. The pre-tightening elastic part abuts between the movable part and the moving frame to provide a pre-tightening force that enables the movable part to have a movement tendency to drive the third air bearing to move closer to the first track.

9. The motion platform according to claim 5, characterized in that: The second pre-tensioning mechanism also includes a second connecting member, which includes a second extension portion and a second abutting portion connected to one end of the second extension portion, the second magnetic fitting member is connected to an end of the second extension portion away from the second abutting portion, the second magnetic fitting member abuts against a side of the platform base on which the first rail and the second rail are provided, and the second abutting portion abuts against a side of the platform base away from the first rail and the second rail.

10. The motion platform according to claim 5, characterized in that: The first guide mechanism further comprises a first mounting seat connected to the motion frame, and the second guide mechanism further comprises a second mounting seat connected to the motion frame; The first air bearing is connected to the first mounting seat by a ball joint, and the second air bearing is connected to the second mounting seat by a ball joint.

11. The motion platform according to claim 5, characterized in that: The motion platform further includes a second driving member, which is disposed between the motion frame and the second track and is used to drive the motion frame to move along the longitudinal extension direction of the second track.

12. A perovskite coating device, characterized in that: It comprises a coating mechanism and a motion platform as described in any one of claims 1 to 11, wherein the coating mechanism is arranged on the motion frame.

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