Adjustment assembly and linear motor device

Abstract

This application relates to the field of linear motor technology, and more particularly to an adjustment component and a linear motor device. The adjustment component provided in this application includes a guide rod and a base assembly. The base assembly is used to connect to the mover of the linear motor and has an inner cavity with openings at both ends, an air injection port, and a first adjustment gap. During the operation of the linear motor, gas is injected into the inner cavity through the air injection port, causing the inner wall of the base assembly to suspend above the outer wall of the guide rod, thus enabling the base assembly to drive the mover of the linear motor to suspend above the stator of the linear motor. Simultaneously, by adjusting the size of the first adjustment gap, the inner wall of the inner cavity is moved away from or closer to the outer wall of the guide rod, thereby adjusting the buoyancy force on the base assembly. Increased buoyancy ensures increased static stiffness of the base assembly, stronger anti-interference capability, and effectively adjusts the degree of mover vibration. Furthermore, this adjustment component has a simple structure and easy adjustment operation, which is beneficial for large-scale mass production.

Description

Technical Field

[0001] This application relates to the field of linear motor technology, and in particular to an adjustment component and a linear motor device. Background Technology

[0002] Linear motors can directly convert electrical energy into linear motion mechanical energy. Compared with linear motion achieved by lead screw transmission mechanisms, linear motors have the advantage of no backlash and are suitable for high-speed, high-acceleration linear motion.

[0003] To enable linear motors to achieve more precise motion performance, related technologies incorporate air-bearing guides into linear motors, eliminating frictional interference between the mover and stator.

[0004] However, linear motors in related technologies suffer from difficulties in processing air-bearing guides, adjusting air-bearing precision, and adjusting the static stiffness of the air-bearing structure, which are not conducive to large-scale mass production. Summary of the Invention

[0005] This application provides an adjustment component and a linear motor device, which can effectively solve the above-mentioned or other potential technical problems.

[0006] The first aspect of this application provides an adjustment assembly for connection to a linear motor. The adjustment assembly includes a guide rod and a base assembly. The base assembly is used to connect to the mover of the linear motor and can move linearly with the mover of the linear motor. The base assembly has an inner cavity with openings at both ends, an air injection port communicating with the inner cavity, and a first adjustment gap communicating with the inner cavity. The guide rod passes through the inner cavity through the openings at both ends. The air injection port is used to inject gas into the inner cavity so that the inner wall of the base assembly is suspended above the outer wall of the guide rod, thereby enabling the base assembly to drive the mover of the linear motor to be suspended above the stator of the linear motor.

[0007] In an alternative embodiment according to the first aspect, the adjustment assembly further includes a porous kit disposed in the cavity, the porous kit having a second adjustment gap corresponding to the first adjustment gap.

[0008] This design allows the gas injected into the inner cavity through the air injection port to be applied more evenly to the outer wall of the guide rod, thereby making the base assembly slide more stably along the guide rod.

[0009] In an alternative embodiment according to the first aspect, the adjustment assembly further includes an adjustment member movably connected to the base assembly for adjusting the size of the first adjustment gap.

[0010] This configuration makes it easier to adjust the operation of the mover.

[0011] In an optional embodiment according to the first aspect, the adjusting member includes an adjusting screw, and the base assembly is provided with a first threaded hole and a second threaded hole, the first threaded hole and the second threaded hole being arranged with opposite thread directions, the first threaded hole and the second threaded hole being respectively arranged on both sides of the first adjusting gap, and the adjusting screw being threadedly connected to the first threaded hole and the second threaded hole to adjust the size of the first adjusting gap.

[0012] This setting makes it easy to adjust the size of the first adjustment gap.

[0013] In an optional embodiment according to the first aspect, the inner cavity is provided with a plurality of annular air passages, each annular air passage communicating with an air injection port.

[0014] This design allows for the initial dispersion of the gas injected into the inner cavity through the air injection port, ensuring the uniformity of the buoyancy force applied to the outer wall of the guide rod.

[0015] In an alternative embodiment according to the first aspect, the base assembly has a through slot, one side of which communicates with an air injection port and the other side of which communicates with an annular air passage.

[0016] This configuration ensures the dispersion of the injected gas.

[0017] In an alternative embodiment according to the first aspect, a plurality of annular air passages are spaced apart along the axial direction of the inner cavity.

[0018] This design further ensures the dispersion of the gas injected into the inner cavity.

[0019] In an alternative embodiment according to the first aspect, the spacing between every two adjacent annular air passages is equal along the axial direction of the inner cavity.

[0020] This design ensures the uniformity of gas distribution within the cavity.

[0021] In an alternative embodiment according to the first aspect, the regulating assembly further includes an injection tube communicating with an injection port.

[0022] This design allows the gas source to be directly connected to the gas injection pipe, thereby enabling the gas to be injected into the inner cavity of the base kit through the gas injection hole.

[0023] A second aspect of this application also provides a linear motor device, including a linear motor and the aforementioned adjustment assembly; the linear motor includes a mover and a stator, the mover being slidably connected to the stator, and the base assembly of the adjustment assembly being connected to the mover of the linear motor.

[0024] The adjustment assembly provided in this application embodiment is used to connect to a linear motor. The adjustment assembly includes a guide rod and a base kit. The base kit is used to connect to the mover of the linear motor and can move linearly with the mover. The base kit has an inner cavity with openings at both ends, an air injection port communicating with the inner cavity, and a first adjustment gap communicating with the inner cavity. During the operation of the linear motor, gas is injected into the inner cavity through the air injection port, causing the inner wall of the base kit to suspend above the outer wall of the guide rod, thus enabling the base kit to drive the mover of the linear motor to suspend above the stator of the linear motor. Simultaneously, by adjusting the size of the first adjustment gap, the inner wall of the inner cavity is moved away from or closer to the outer wall of the guide rod, thereby adjusting the buoyancy force on the base kit. Increased buoyancy ensures increased static stiffness of the base kit, stronger anti-interference capability, and effectively adjusts the degree of mover vibration. Furthermore, this adjustment assembly has a simple structure and easy adjustment operation, which is beneficial for large-scale mass production.

[0025] This application provides a linear motor device that, due to including the aforementioned adjustment component, also effectively adjusts the degree of mover jitter. Furthermore, the adjustment component has a simple structure and the adjustment process is easy, which is beneficial for large-scale mass production.

[0026] Additional advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0027] The above and other objects, features, and advantages of embodiments of this application will become more readily understood through the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application will be described by way of example and non-limitation, wherein:

[0028] Figure 1 This is a schematic diagram of the overall structure of the linear motor device provided in the embodiments of this application;

[0029] Figure 2 An exploded view of the adjustment component provided in the embodiment of this application after the guide rod has been removed;

[0030] Figure 3 A schematic diagram of the base kit of the adjustment component provided in the embodiments of this application from a first perspective;

[0031] Figure 4 A schematic diagram of the base kit of the adjustment component provided in the embodiments of this application from a second perspective;

[0032] Figure 5 for Figure 4 Sectional view along line AA;

[0033] Figure 6 for Figure 5Sectional view along the BB direction.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100. Adjustment components;

[0036] 110. Guide rod;

[0037] 120. Base kit;

[0038] 121. Inner cavity; 122. Air injection port;

[0039] 123. First adjustment gap; 124. First threaded hole;

[0040] 125. Second threaded hole; 126. Annular air passage;

[0041] 127. Through groove;

[0042] 130. Multi-hole kit;

[0043] 131. Second adjustment gap;

[0044] 140. Base;

[0045] 150. Support frame;

[0046] 160. Adjusting screw;

[0047] 170. Gas injection tube;

[0048] 200. Linear motor device;

[0049] 210. Linear motor;

[0050] 211. Motion;

[0051] 2111. Wire connector; 2112. Optical scale reading head;

[0052] 212. Stator. Detailed Implementation

[0053] The embodiments of this application are described in detail below. Examples of the above embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0054] It should be understood that the following embodiments do not limit the execution order of the steps in the method protected by this application. The steps of the method of this application can be executed in any possible order and in a cyclic manner without contradicting each other.

[0055] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] Linear motors can directly convert electrical energy into linear motion mechanical energy. Compared to linear motion achieved by lead screw transmission mechanisms, linear motors offer the advantage of zero backlash, making them suitable for high-speed, high-acceleration linear motion. To achieve more precise motion performance, related technologies incorporate air-bearing guides into linear motors, eliminating frictional interference between the mover and stator. However, these technologies suffer from challenges such as the difficulty in manufacturing air-bearing guides, adjusting air-bearing precision, and the inconvenience of adjusting the static stiffness of the air-bearing structure, hindering large-scale mass production.

[0060] In view of this, the adjustment assembly provided in this application embodiment is used to connect to a linear motor. The adjustment assembly includes a guide rod and a base assembly; the base assembly is used to connect to the mover of the linear motor and can move linearly with the mover of the linear motor. The base assembly has an inner cavity with openings at both ends, an air injection hole communicating with the inner cavity, and a first adjustment gap communicating with the inner cavity. During the operation of the linear motor, gas is injected into the inner cavity through the air injection hole, so that the inner wall of the base assembly is suspended above the outer wall of the guide rod, thereby enabling the base assembly to drive the mover of the linear motor to be suspended above the stator of the linear motor. At the same time, by adjusting the size of the first adjustment gap, the inner wall of the inner cavity is moved away from or closer to the outer wall of the guide rod, thereby adjusting the buoyancy force on the base assembly. The increased buoyancy force can ensure that the static stiffness of the base assembly is increased, the anti-interference ability is strengthened, and thus the vibration degree of the mover is effectively adjusted. Moreover, the adjustment assembly has a simple structure and the adjustment operation is simple, which is conducive to large-scale mass production.

[0061] Figure 1 This is a schematic diagram of the overall structure of the linear motor device provided in the embodiments of this application; Figure 2 An exploded view of the adjustment component provided in the embodiment of this application after the guide rod has been removed; Figure 3 A schematic diagram of the base kit of the adjustment component provided in the embodiments of this application from a first perspective; Figure 4 A schematic diagram of the base kit of the adjustment component provided in the embodiments of this application from a second perspective; Figure 5 for Figure 4 Sectional view along line AA; Figure 6 for Figure 5 Sectional view along the BB direction. Please refer to... Figures 1 to 6 The adjustment assembly 100 provided in this application embodiment is used to connect with the linear motor 210. The adjustment assembly 100 includes a guide rod 110 and a base assembly 120. The base assembly 120 is used to connect with the mover 211 of the linear motor 210 and can move linearly with the mover 211 of the linear motor 210. The base assembly 120 has an inner cavity 121 with openings at both ends, an air injection hole 122 communicating with the inner cavity 121, and a first adjustment gap 123 communicating with the inner cavity 121. The guide rod 110 passes through the inner cavity 121 through the openings at both ends. The air injection hole 122 is used to inject gas into the inner cavity 121 so that the inner wall of the base assembly 120 is suspended above the outer wall of the guide rod 110, so that the base assembly 120 drives the mover 211 of the linear motor 210 to be suspended above the stator 212 of the linear motor 210.

[0062] It should be noted that, in specific use, the adjustment component 100 provided in this application embodiment connects the base assembly 120 to the mover 211 of the linear motor 210 and can move linearly along with the mover 211. During the operation of the mover 211 of the linear motor 210, the air injection hole 122 is used to inject gas into the inner cavity 121, and the inner wall of the base assembly 120 is suspended above the outer wall of the guide rod 110, so that the base assembly 120 drives the mover 211 of the linear motor 210 to be suspended above the stator 212 of the linear motor 210. Then, an external detection device is used to detect the levelness and jitter of the mover 211 suspension. When the jitter is not up to standard, affecting the stable operation of the mover 211, the size of the first adjustment gap 123 can be adjusted to minimize the jitter of the mover 211 suspension.

[0063] In an optional exemplary embodiment, the adjustment assembly 100 further includes a porous kit 130 disposed in the inner cavity 121, the porous kit 130 having a second adjustment gap 131 corresponding to the first adjustment gap 123.

[0064] It should be noted that, specifically, in this embodiment, the adjustment assembly 100 further includes a porous kit 130, which is disposed in the inner cavity 121. The porous kit 130 allows the gas injected into the inner cavity 121 by the gas injection port 122 to be applied more evenly to the outer wall of the guide rod 110, thereby making the base assembly 120 slide more stably along the guide rod 110. At the same time, the porous kit 130 adaptively has a second adjustment gap 131 corresponding to the first adjustment gap 123, effectively preventing the porous kit 130 from interfering with the adjustment of the first adjustment gap 123 when adjusting the first adjustment gap 123.

[0065] For example, in this embodiment, the porous kit 130 is a porous graphite sleeve.

[0066] It should be noted that the porous graphite sleeve structure has strong stability, which effectively ensures uniform air permeability in the inner cavity 121, allowing the base kit 120 to slide stably along the guide rod 110, thereby ensuring the stability of the performance of the adjustment component 100.

[0067] In this embodiment, for example, the inner cavity 121 of the base assembly 120 is a cylindrical shape with openings at both ends, the porous assembly 130 is adaptively cylindrical with openings at both ends, and the guide rod 110 is cylindrical. The outer wall of the porous assembly 130 is fixedly connected to the inner wall of the inner cavity 121 of the base assembly 120.

[0068] It should be noted that the inner cavity 121 of the base kit 120 is a cylindrical shape with open ends, the porous kit 130 is adapted to be a cylindrical shape with open ends, and the guide rod 110 is cylindrical, which can further improve the uniformity of the air buoyancy between the inner cavity 121 of the base kit 120 and the outer wall of the guide rod 110.

[0069] For example, the first adjustment gap 123 is disposed on the side wall of the base assembly 120. The first adjustment gap 123 penetrates the side wall of the base assembly 120 radially, so that adjusting the first adjustment gap 123 can change the diameter of the base assembly 120. That is, the smaller the gap of the first adjustment gap 123, the smaller the diameter of the base assembly 120, and the smaller the distance between the inner side wall of the inner cavity 121 of the base assembly 120 and the outer side wall of the guide rod 110. At this time, the gas injected by the air injection hole 122 is applied to the outer wall of the guide rod 110. Based on the principle that forces act in pairs, the buoyancy force on the inner side wall of the inner cavity 121 of the base assembly 120 increases, thereby improving the anti-interference ability of the mover 211.

[0070] For example, there are at least two guide rods 110, and at least two base kits 120 are fitted on each guide rod 110.

[0071] This configuration allows for adjustment of the levelness of the mover 211 by adjusting the first adjustment gap 123 on different base components 120. Simultaneously, the arrangement of multiple base components 120 and multiple guide rods 110 further ensures the stability of the support for the mover 211, thereby guaranteeing the stable operation of the mover 211.

[0072] For example, in this embodiment, there are two guide rods 110, and two base kits 120 on each guide rod 110. The two guide rods 110 are arranged in parallel and spaced apart, and two base kits 120 are spaced apart on each guide rod 110. The base kits 120 are all connected to the mover 211 and can run along the mover 211.

[0073] It is understood that the number of guide rods 110 is not limited here. In other specific embodiments, the number of guide rods 110 can be set to three, four or five, etc. Similarly, the number of base kits 120 provided on each guide rod 110 can also be set to three, four or five, etc.

[0074] For example, in this embodiment, the base kits 120 on the two guide rods 110 are arranged opposite each other. It should be noted that this arrangement ensures the uniformity and consistency of the buoyancy force, thereby facilitating the adjustment of the level of the mover 211.

[0075] In an optional exemplary embodiment, the adjustment assembly 100 further includes a base 140 and two support frames 150, the two support frames 150 being spaced apart on the base 140, and the two ends of the guide rod 110 being connected to the two support frames 150 respectively.

[0076] It should be noted that a base 140 and two support frames 150 are provided to support the guide rod 110.

[0077] In an optional exemplary embodiment, the adjustment assembly 100 further includes an adjustment member movably connected to the base assembly 120 for adjusting the size of the first adjustment gap 123.

[0078] It should be noted that, specifically, in this embodiment, an adjusting member is provided, which is movably connected to the base assembly 120, and is used to adjust the size of the first adjusting gap 123. When the mover 211 experiences horizontal deviation or vibration, the adjusting member can be adjusted to adjust the size of the first adjusting gap 123, thereby adjusting the buoyancy force acting on the base assembly 120, and thus adjusting the operation of the mover 211.

[0079] In an optional exemplary embodiment, the adjusting member includes an adjusting screw 160. The base assembly 120 is provided with a first threaded hole 124 and a second threaded hole 125. The threads of the first threaded hole 124 and the second threaded hole 125 are arranged in opposite directions. The first threaded hole 124 and the second threaded hole 125 are respectively arranged on both sides of the first adjusting gap 123. The adjusting screw 160 is threadedly connected to the first threaded hole 124 and the second threaded hole 125 to adjust the size of the first adjusting gap 123.

[0080] It should be noted that, specifically, in this embodiment, the adjusting component includes an adjusting screw 160. The base assembly 120 is provided with a first threaded hole 124 and a second threaded hole 125. The threads of the first threaded hole 124 and the second threaded hole 125 are arranged in opposite directions. The first threaded hole 124 and the second threaded hole 125 are respectively located on both sides of the first adjusting gap 123. The adjusting screw 160 is threadedly connected to the first threaded hole 124 and the second threaded hole 125. When adjusting the first adjusting gap 123, the adjusting screw 160 can be screwed in and out. Since the threads of the first threaded hole 124 and the second threaded hole 125 are arranged in opposite directions, as the adjusting screw 160 is screwed in or out, the distance between the two opposing surfaces of the first adjusting gap 123 can be adjusted, thereby adjusting the size of the first adjusting gap 123 and realizing the adjustment of the distance between the inner wall of the inner cavity 121 of the base assembly 120 and the outer wall of the guide rod 110. This configuration makes the adjustment process simple and easy to operate.

[0081] In an optional exemplary embodiment, the inner cavity 121 is provided with a plurality of annular air passages 126, each of which is connected to an air injection port 122.

[0082] It should be noted that, specifically, in this embodiment, a plurality of annular air passages 126 are provided in the inner cavity 121, and each annular air passage 126 is connected to the air injection hole 122. The plurality of annular air passages 126 preliminarily disperse the gas injected into the inner cavity 121 by the air injection hole 122, so as to ensure the uniformity of the force of buoyancy applied to the outer wall of the guide rod 110.

[0083] In an optional exemplary embodiment, the base assembly 120 has a through groove 127, one side of which communicates with an air injection port 122 and the other side of which communicates with an annular air passage 126.

[0084] It should be noted that, specifically, in this embodiment, a through groove 127 is provided within the base assembly 120. One side of the through groove 127 communicates with the gas injection hole 122, and the other side communicates with the annular gas passage 126, thereby enabling gas to be injected into the through groove 127 through the gas injection hole 122, and then dispersed into multiple annular gas passages 126 through the through groove 127. This arrangement ensures the dispersion of gas injection.

[0085] In an optional exemplary embodiment, a plurality of annular air passages 126 are spaced apart along the axial direction of the inner cavity 121.

[0086] It should be noted that multiple annular gas passages 126 are spaced apart along the axial direction of the inner cavity 121 to further ensure the dispersion of the gas injected into the inner cavity 121.

[0087] In an optional exemplary embodiment, the spacing between any two adjacent annular air passages 126 is equal along the axial direction of the inner cavity 121.

[0088] It should be noted that, along the axial direction of the inner cavity 121, the spacing between every two adjacent annular gas passages 126 is equal, that is, multiple annular gas passages 126 are set at equal intervals, thereby ensuring the uniformity of gas distribution in the inner cavity 121.

[0089] In an optional exemplary embodiment, the adjustment assembly 100 further includes an air injection tube 170, which communicates with an air injection port 122.

[0090] It should be noted that, specifically, in this embodiment, an injection pipe 170 is provided to facilitate the direct connection of the gas source to the injection pipe 170, thereby enabling the gas to be injected into the inner cavity 121 of the base assembly 120 through the injection hole 122.

[0091] For example, the mover 211 is also provided with a wire connector 2111.

[0092] It should be noted that the wire connector 2111 is used to energize the coil inside the mover 211.

[0093] This application embodiment also provides a linear motor device 200, including a linear motor 210 and the above-mentioned adjustment component 100; the linear motor 210 includes a mover 211 and a stator 212, the mover 211 is slidably connected to the stator 212, and the base kit 120 of the adjustment component 100 is connected to the mover 211 of the linear motor 210.

[0094] In an optional exemplary embodiment, a grating ruler is also provided on the stator 212. The grating ruler is laid along the length direction of the stator 212. A grating ruler reading head 2112 is provided on the mover 211 to cooperate with the grating ruler. The grating ruler reading head 2112 can move with the mover and read the value of the grating ruler on the stator 212 corresponding to the current mover 211, so that the grating ruler reading head 2112 can read the displacement of the mover 211.

[0095] This application provides a linear motor device 200, which includes the aforementioned adjustment component 100. Therefore, it also effectively adjusts the vibration level of the mover 211. Furthermore, the adjustment component 100 has a simple structure and the adjustment operation is easy, which is beneficial for large-scale mass production.

[0096] Specifically, in order to clarify the adjustment principle of the linear motor device 200 when using the adjustment component 100, and to further understand the structure of the adjustment component 100, the adjustment process of the mover 211 of the linear motor device 200 is described as follows:

[0097] The linear motor 210 includes a mover 211 and a stator 212. A coil is housed within the mover 211, and magnets are housed within the stator 212. During operation, gas is injected into the inner cavity 121 through the air injection port 122. The inner wall of the base assembly 120 is suspended above the outer wall of the guide rod 110, allowing the base assembly 120 to drive the mover 211 of the linear motor 210 to suspend above the stator 212. Similar to existing linear motors 210, the coils within the linear motor 210 are energized. Taking an existing U-shaped linear motor as an example, the stator 212 is designed in the form of a U-shaped slot, with an array of magnets arranged on the inner walls of both sides of the U-shaped slot. A coil is mounted on the mover 211, and the coil assembly is iron-free. Since the coil assembly is iron-free, it does not generate any attractive or interfering forces with the magnets. The magnetic field of the U-shaped linear motor is vertical, and the coil current flows in or out of the U-shaped groove. Based on the force analysis of the conductor in the magnetic field, the force on the coil is along the guide rail direction. Combined with a displacement sensor, the position of the mover 211 is detected in real time to change the phase of the energized coil, achieving linear motion. There is no mechanical contact between the mover 211 and the stator 212 of the linear motor 210, and the mover 211 is less susceptible to interference, achieving air-bearing linear motion, which is beneficial for achieving precise motion effects.

[0098] The base assembly 120 of the adjusting component 100 is connected to the mover 211 of the linear motor 210 and can move linearly with the mover 211 of the linear motor 210. During the operation of the mover 211 of the linear motor 210, gas is injected into the inner cavity 121 through the air injection port 122. The inner wall of the base assembly 120 is suspended above the outer wall of the guide rod 110, so that the base assembly 120 drives the mover 211 of the linear motor 210 to be suspended above the stator 212 of the linear motor 210. Then, the levelness and vibration of the mover 211 suspension are detected by an external detection device. When the vibration level is not up to standard, affecting the stable operation of the mover 211, the size of the first adjusting gap 123 can be adjusted to minimize the vibration of the mover 211 suspension, thus completing the adjustment of the air buoyancy level of the mover 211.

[0099] The adjustment operation of the first adjustment gap 123 is as follows: The adjusting screw 160 can be turned. Since the threads of the first threaded hole 124 and the second threaded hole 125 are set in opposite directions, as the adjusting screw 160 is turned in or out, the distance between the two opposing surfaces of the first adjustment gap 123 can be adjusted, thereby adjusting the size of the first adjustment gap 123 and realizing the adjustment of the distance between the inner wall of the inner cavity 121 of the base assembly 120 and the outer wall of the guide rod 110. When it is necessary to reduce the degree of vibration, the adjusting screw 160 can be turned in, causing the first adjustment gap 123 to decrease, thereby reducing the distance between the two opposing surfaces of the first adjustment gap 123, and the distance between the porous assembly 130 in the base assembly 120 and the outer wall of the guide rod 110 to decrease. Through the air injection hole 122, the distance between the gas in the porous assembly 130 and the outer wall of the guide rod 110 decreases, increasing the buoyancy force, increasing the static stiffness of the adjusting assembly 100, strengthening the anti-interference ability, and thus reducing the degree of vibration of the mover 211. Meanwhile, this application embodiment provides four base kits 120. The level of the four base kits 120 can be adjusted by adjusting the four adjustment members, thereby achieving simple adjustment of the shaking degree and level of the mover 211.

[0100] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0101] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this application will not describe the various possible combinations separately.

Claims

1. An adjustment assembly for connection to a linear motor, characterized in that, The adjustment assembly includes a guide rod and a base kit; The base assembly is used to connect with the mover of the linear motor and can move linearly with the mover of the linear motor. The base assembly has an inner cavity with openings at both ends, an air injection hole communicating with the inner cavity, and a first adjustment gap communicating with the inner cavity. The guide rod passes through the inner cavity through the openings at both ends of the inner cavity, and the air injection hole is used to inject gas into the inner cavity so that the inner wall of the base assembly is suspended above the outer wall of the guide rod, thereby enabling the base assembly to drive the mover of the linear motor to be suspended above the stator of the linear motor. It also includes a porous kit disposed in the inner cavity, which allows the gas injected into the inner cavity by the air injection port to be applied more evenly to the outer wall of the guide rod, and the porous kit has a second adjustment gap corresponding to the first adjustment gap; It also includes an adjustment component, which is movably connected to the base assembly and is used to adjust the size of the first adjustment gap; The adjusting component includes an adjusting screw. The base assembly is provided with a first threaded hole and a second threaded hole. The first threaded hole and the second threaded hole are arranged with opposite thread directions. The first threaded hole and the second threaded hole are respectively arranged on both sides of the first adjusting gap. The adjusting screw is threadedly connected to the first threaded hole and the second threaded hole. As the adjusting screw is screwed in or out, the size of the first adjusting gap is adjusted.

2. The adjustment component according to claim 1, characterized in that, The inner cavity is provided with multiple annular air passages, each of which is connected to the air injection hole.

3. The adjustment component according to claim 2, characterized in that, The base assembly has a through groove, one side of which is connected to the air injection hole and the other side is connected to the annular air passage.

4. The adjustment component according to claim 2, characterized in that, Multiple annular air passages are spaced apart along the axial direction of the inner cavity.

5. The adjustment component according to claim 4, characterized in that, Along the axial direction of the inner cavity, the spacing between any two adjacent annular air passages is equal.

6. The adjustment component according to claim 1, characterized in that, It also includes an injection tube, which is connected to the injection port.

7. A linear motor device, characterized in that, include: The linear motor and the adjustment assembly according to any one of claims 1 to 6; The linear motor includes a mover and a stator, the mover being slidably connected to the stator, and the base assembly of the adjustment component being connected to the mover of the linear motor.

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