A linear motor installation device and method for a precision air-floating guide rail

Abstract

The present application provides a linear motor installation device and method for a precision air-floating guide rail, which is applied to the field of precision machinery technology. By setting the left detection and adjustment module at a first preset installation position, the installation position of the detection and adjustment module is accurately positioned, thereby achieving precise adjustment of the motor stator installation position; the long-stroke guide rail and the fourth displacement sensor of the right detection and adjustment module achieve precise detection and adjustment of the motor stator installation position. This technical solution achieves precise detection and adjustment of the linear motor stator installation position by setting left and right detection and adjustment modules, combined with a drive module and a fourth displacement sensor. It has the advantages of improving the installation accuracy of the linear motor stator, improving installation efficiency, and reducing dependence on operator experience.

Description

Technical Field

[0001] The present application relates to the field of precision machinery technology, and in particular to a linear motor installation device and method for a precision air-floating guide rail. Background Art

[0002] As the demand for product precision continues to increase, stricter requirements are placed on the operational control accuracy of the equipment itself. Linear motors are currently widely used in various precision air bearing guide rail systems due to their stable operating speed, high positioning accuracy, and simple motor structure.

[0003] Air flotation modules are in huge demand in the current industry. To ensure the final operational accuracy of a demanding precision air flotation module system, strict requirements must be met for the relative positional accuracy between the linear motor and the air flotation guide, as well as the splicing accuracy between the motor stators. Currently, the installation of the moving stator of a linear motor typically relies directly on the straightness and verticality of the workpiece at the equipment installation location. This installation method places excessively high demands on the workpiece positioning accuracy at the installation location, resulting in excessively high product manufacturing costs. Furthermore, there is a lack of testing for the installation accuracy of long-stroke linear motors. Furthermore, as market demands for increasingly compact dimensions of precision air flotation modules, the installation space for linear motors is significantly compressed, increasing the difficulty of installation and relying too heavily on experienced operators for efficiency. Consequently, efficiency and repeatability of installation accuracy cannot be guaranteed, making it difficult to ensure efficient and high-precision mass production of precision air flotation modules.

[0004] Therefore, there are problems in the prior art in that the installation accuracy of the linear motor stator cannot be adjusted, and the installation, detection and adjustment processes are inefficient. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, the present application provides a linear motor installation device and method for precision air-floating guide rails, which is applied to the field of precision machinery technology and has the advantages of improving the installation accuracy of the linear motor stator, improving the installation efficiency, and reducing the dependence on the operator's experience.

[0006] In a first aspect, a linear motor mounting device for a precision air-bearing guide rail is provided. The mounting device is mounted on an air-bearing guide rail device and is used to detect a linear motor located on the air-bearing guide rail device. The linear motor includes at least a plurality of motor stators spaced apart along the X-axis direction. The mounting device includes at least a drive module and a detection and adjustment module.

[0007] The detection and adjustment module comprises at least a left detection and adjustment module and a right detection and adjustment module, wherein the left detection and adjustment module has a first preset installation position, which is used as an installation reference for the detection and adjustment module;

[0008] The right detection and adjustment module includes at least a long-stroke guide rail and a fourth displacement sensor movably mounted on the long-stroke guide rail, wherein the fourth displacement sensor runs along the long-stroke guide rail to detect the distance from each motor stator in the Y-axis direction, so that the distance between each motor stator in the Y-axis direction remains consistent;

[0009] The driving module is at least used to drive the right detection and adjustment module to move in the Y-axis direction.

[0010] The present application provides a linear motor installation device for a precision air-floating guide rail, which accurately positions the installation position of the detection and adjustment module by setting the left detection and adjustment module at a first preset installation position, thereby achieving precise adjustment of the motor stator installation position; the long-stroke guide rail and the fourth displacement sensor of the right detection and adjustment module achieve precise detection and adjustment of the motor stator installation position. This technical solution achieves precise detection and adjustment of the linear motor stator installation position by setting left and right detection and adjustment modules, combined with the drive module and the fourth displacement sensor. This design not only improves the installation accuracy, but also improves the installation efficiency through the automated detection and adjustment process. At the same time, the design of the long-stroke guide rail adapts to the installation requirements of multiple motor stators, further improving the installation efficiency and consistency of accuracy. In addition, this solution reduces the dependence on the accuracy of the workpiece at the installation position, reduces manufacturing costs, and improves the repeatability of the installation process, which is conducive to the efficient and high-precision mass production of precision air-floating modules.

[0011] Furthermore, the right detection and adjustment module also includes a second displacement stop plate, which is fixed on the long-stroke guide rail. The second displacement stop plate contacts the first side surface of the motor stator close to the long-stroke guide rail to locate the operating position of the long-stroke guide rail.

[0012] The present application provides a linear motor installation device for a precision air-floating guide rail. This technical solution achieves precise positioning and adjustment of the motor stator installation position by adding a second displacement stop plate to the right detection and adjustment module and making it contact with the motor stator. This design not only improves the installation accuracy of the linear motor stator, but also simplifies the installation process and improves the installation efficiency. Through the movable long-stroke guide rail and the second displacement stop plate fixed thereon, the device can flexibly adapt to the installation requirements of the motor stators in different positions, while ensuring the consistency of the installation accuracy. This design overcomes the shortcomings of the traditional installation method of high installation position workpiece accuracy and low installation efficiency, and provides an efficient and high-precision solution for the installation of linear motors with precision air-floating guide rails.

[0013] Furthermore, the long-stroke guide rail is a structure that can be extended and retracted along the X-axis direction to facilitate the installation of multiple motor stators.

[0014] The present application provides a linear motor installation device for a precision air-floating guide rail. By adopting a long-stroke guide rail structure that can be extended and retracted along the X-axis, this technical solution effectively solves the problem of installing multiple motor stators. This design allows the long-stroke guide rail to adjust its length as needed, so that it can cover motor stators in different positions. This not only simplifies the installation process and improves installation efficiency, but also ensures the relative position accuracy between multiple motor stators. In addition, this retractable structure also increases the adaptability of the system, making it suitable for precision air-floating guide rail systems of different lengths and configurations.

[0015] Furthermore, the right detection and adjustment module also includes an air bearing, which is arranged below the long-stroke guide rail and is used to support the long-stroke guide rail and prevent the long-stroke guide rail from bending due to friction.

[0016] This application provides a linear motor mounting device for a precision air-floating guide rail. This device effectively addresses the long-stroke guide rail support issue by introducing an air-floating bearing into the right detection and adjustment module. The air-floating bearing, positioned beneath the long-stroke guide rail, provides stable, low-friction support. This not only improves the guide rail's motion accuracy and stability, but also facilitates smooth extension and retraction of the long-stroke guide rail in the X-axis direction, preventing bending of the long-stroke guide rail due to excessive X-axis overhang.

[0017] Furthermore, the linear motor also includes a motor mover, which is installed on the motor stator and is used to be fixed to the air-floating slide on the air-floating guide rail device to drive the air-floating slide to run along the X-axis direction; the left detection and adjustment module also has a second preset installation position, which is used as an installation reference for the motor mover.

[0018] Furthermore, the left detection and adjustment module also includes a first linear electric cylinder module, which contacts the motor mover and is used to push the motor mover to run toward the right detection and adjustment module to ensure that the motor mover is symmetrically installed along the central axis of the motor stator in the X-axis direction.

[0019] Furthermore, the right detection and adjustment module also includes a second linear electric cylinder module and a third linear electric cylinder module arranged at intervals. The second linear electric cylinder module and the third linear electric cylinder module are in contact with the motor mover and are used to push the motor mover to run in the direction of the left detection and adjustment module to ensure that the motor mover is symmetrically installed along the central axis of the motor stator in the X-axis direction.

[0020] Furthermore, the left detection and adjustment module further includes a short-stroke guide rail and a first displacement sensor, a displacement detection target, and a third displacement stop plate arranged on the short-stroke guide rail; the right detection and adjustment module further includes a second displacement sensor and a third displacement sensor;

[0021] The third displacement stop plate contacts the second side surface of the motor stator close to the short-stroke guide rail; the first displacement sensor is used to detect a first distance between the second side surface and the displacement detection target;

[0022] The second displacement sensor is used to detect a second distance from the first side surface of the motor stator; the third displacement sensor is used to detect a third distance from the displacement detection target;

[0023] The first distance, the second distance, and the third distance are used to calculate the thickness of the motor stator in the Y-axis direction.

[0024] In a second aspect, a method for installing a linear motor for a precision air-floating guide rail is provided, which is applied to any of the above-mentioned linear motor installation devices for a precision air-floating guide rail. The method comprises the following steps:

[0025] S1: Adjust the left detection and adjustment module to a first preset installation position and keep the left detection and adjustment module stationary;

[0026] S2: Fixing the first motor stator in a predetermined mounting hole on the air-floating guide rail device, and driving the right detection and adjustment module to operate according to the fixed position of the motor stator, so that the second displacement stop plate on the right detection and adjustment module is closely attached to the first side surface of the motor stator;

[0027] S3: Obtain the distance of the first motor stator detected by the fourth displacement sensor, and install the remaining motor stators based on the distance.

[0028] Furthermore, after step S3, the method includes: S4: installing the motor mover;

[0029] Step S4 includes:

[0030] S41: driving the left detection and adjustment module to operate, so that the left detection and adjustment module is located at a second preset installation position, and keeping the left detection and adjustment module stationary;

[0031] S42: Acquire a first distance between the left detection and adjustment module and the motor stator;

[0032] S43: Acquire a second distance between the right detection and adjustment module and the motor stator;

[0033] S44: Obtaining a third distance between the right detection and adjustment module and the left detection and adjustment module;

[0034] S45: Calculating a thickness of the motor stator in the Y-axis direction according to the first distance, the second distance, and the third distance;

[0035] S46: Install the motor mover according to the thickness dimension.

[0036] Beneficial effects: The present application provides a linear motor installation device and method for a precision air-floating guide rail, which accurately positions the installation position of the detection and adjustment module by setting the left detection and adjustment module at a first preset installation position, thereby achieving precise adjustment of the motor stator installation position; the long-stroke guide rail and the fourth displacement sensor of the right detection and adjustment module achieve precise detection and adjustment of the motor stator installation position. This technical solution achieves precise detection and adjustment of the linear motor stator installation position by setting left and right detection and adjustment modules, combined with the drive module and the fourth displacement sensor. This design not only improves the installation accuracy, but also improves the installation efficiency through the automated detection and adjustment process. At the same time, the design of the long-stroke guide rail adapts to the installation requirements of multiple motor stators, further improving the installation efficiency and consistency of accuracy. In addition, this solution reduces the dependence on the accuracy of the workpiece at the installation position, reduces manufacturing costs, and improves the repeatability of the installation process, which is conducive to the efficient and high-precision mass production of precision air-floating modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of a linear motor installation device for a precision air-floating guide provided in this application.

[0038] Figure 2 This is a schematic diagram of a linear motor installation device for a precision air-bearing guide provided in this application, with the air-bearing slide removed.

[0039] Figure 3 This is a top view of a linear motor mounting device for a precision air-floating guide provided in this application.

[0040] Figure 4 Another schematic diagram of the linear motor mounting device for the precision air-floating guide provided in this application.

[0041] Figure 5 This is a flow chart of a method for installing a linear motor on a precision air-floating guide rail provided in this application.

[0042] Explanation of reference numbers: 1. Base; 2. Air-floating guide rail module; 201. Air-floating block; 202. Air-floating guide rail; 3. Linear motor; 301. Motor mover; 302. Motor stator; 4. Detection and adjustment module; 401. Left detection and adjustment module; 402. Right detection and adjustment module; 4011. First displacement stop plate; 4012. First displacement sensor; 4013. First linear electric cylinder module; 4014. Short-stroke guide rail; 4015. First fine-tuning guide rail; 4016. Displacement detection target ; 4017, third displacement stop plate; 4021, second linear electric cylinder module; 4022, second displacement sensor; 4023, third linear electric cylinder module; 4024, servo motor and lead screw module; 4025, third displacement sensor; 4026, second fine-tuning guide rail; 4027, second displacement stop plate; 4028, first air bearing; 4029, fourth displacement sensor; 40210, second air bearing; 40211, long-stroke guide rail; 40212, tooling base. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work fall within the scope of protection of the present application.

[0044] It should be noted that similar reference numerals and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0045] The following disclosure provides many different implementations or examples for achieving the purpose of the present invention, which solve the problems in the prior art that the stator installation accuracy of the linear motor cannot be adjusted and the installation, detection and adjustment processes are inefficient.

[0046] For details, please refer to Figures 1 to 4In a first aspect, a linear motor mounting device for a precision air-floating guide rail is provided. The mounting device is disposed on an air-floating guide rail device and is used to detect a linear motor 3 located on the air-floating guide rail device. The linear motor 3 includes at least a plurality of motor stators 302 spaced apart along the X-axis direction. The mounting device includes at least a drive module and a detection and adjustment module 4.

[0047] The detection and adjustment module 4 at least includes a left detection and adjustment module 401 and a right detection and adjustment module 402. The left detection and adjustment module 401 has a first preset installation position, which is used as an installation reference for the detection and adjustment module 4.

[0048] The right detection and adjustment module 402 includes at least a long-stroke guide rail 40211 and a fourth displacement sensor 4029 movably mounted on the long-stroke guide rail 40211. The fourth displacement sensor 4029 operates along the long-stroke guide rail 40211 to detect the distance from each motor stator 302 in the Y-axis direction, thereby ensuring that the distance between each motor stator 302 in the Y-axis direction remains consistent.

[0049] The driving module is at least used to drive the right detection and adjustment module 402 to move in the Y-axis direction.

[0050] The air-floating rail system comprises at least a base 1 and an air-floating rail module 2 mounted on the base 1. The air-floating rail module 2 comprises two air-floating rails 202 spaced apart on the base, an air-floating block 201 mounted on the air-floating rails 202, and an air-floating slide mounted on the air-floating block 201 and sliding along the air-floating rails 202. A linear motor 3 is disposed between the two air-floating rails 202 to drive the air-floating slide to slide along the air-floating rails 202.

[0051] Among them, the attached Figure 1 Based on the directions shown, the air-bearing guide rail 202 is installed in the X-axis direction, with the Y-axis direction perpendicular to the X-axis. Base 1 refers to the support structure of the entire device. The air-bearing guide rail 202 is the motion guide rail used to support the air-bearing slide, and can be implemented using a high-precision linear guide rail. Linear motor 3 is the motor used to drive the air-bearing slide along the X-axis. The drive module is the module used to drive the detection and adjustment module 4 (which includes the left detection and adjustment module 401 and the right detection and adjustment module 402) along the Y-axis, and can be implemented using a servo motor and a ball screw mechanism. The left detection and adjustment module 401 includes the first displacement stop plate 4011, which serves as the installation reference for the linear motor 3. The right detection and adjustment module 402 includes the long-stroke guide rail 40211 and the fourth displacement sensor 4029, and can be implemented using a high-precision linear slide and a non-contact displacement sensor. The fourth displacement sensor 4029 can be an eddy current displacement sensor.

[0052] The structure of the base 1 can be a rectangular parallelepiped, and the surface of the base 1 for supporting the components is rectangular to facilitate the installation of the air-floating guide rail 202. Two air-floating guide rails 202 can be spaced apart, and the linear motor 3 is arranged between the two air-floating guide rails 202. A permanent magnet synchronous design can be adopted to provide a stable driving force to drive the air-floating slide. The drive module can be arranged on the base 1 along the Y-axis direction to support and drive the left detection and adjustment module 401 and the right detection and adjustment module 402 to operate. The left detection and adjustment module 401 includes at least a short-stroke guide rail 4014 and a first displacement stop plate 4011 arranged on the short-stroke guide rail 4014. When installing the detection and adjustment module 4, the first displacement stop plate 4011 is tightly fitted with the air-floating guide rail 202 so that the left detection and adjustment module 401 is located at the first preset installation position, ensuring the installation accuracy of the detection and adjustment module 4. The long-stroke guide rail 40211 of the right detection and adjustment module 402 cooperates with the fourth displacement sensor 4029 to detect the distance between the motor stators 302 in the Y-axis direction in real time, thereby ensuring that the distance between multiple motor stators 302 in the Y-axis direction is consistent.

[0053] Specifically, when installing the linear motor 3 of the air-floating guide rail device, the air-floating guide rail 202, the air-floating block 201, and the air-floating slide are first sequentially installed on the finished base 1 to form the air-floating guide rail module 2. The detection and adjustment module 4 and the drive module are then installed on the tooling base 40212. The installed tooling base 40212 is then positioned between the two air-floating guide rails 202. The drive module includes at least a servo motor and a lead screw module 4024, as well as a first fine-tuning guide rail 4015 disposed below the left detection and adjustment module 401 and a second fine-tuning guide rail 4026 disposed below the right detection and adjustment module 402. The first fine-tuning guide rail 4015 and the second fine-tuning guide rail 4026 are both disposed along the Y-axis. Driven by the servo motor and the lead screw module 4024, the left detection and adjustment module 401 and the right detection and adjustment module 402 respectively operate along the first fine-tuning guide rail 4015 and the second fine-tuning guide rail 4026.

[0054] Among them, in order to ensure that the left detection and adjustment module 401 and the right detection and adjustment module 402 can be disassembled and assembled at any time, the driving module also includes a tooling base 40212, and the tooling base 40212 includes an upper mounting surface and a lower mounting surface. The first fine-tuning guide rail 4015, the left detection and adjustment module 401, the second fine-tuning guide rail 4026 and the right detection and adjustment module 402 are arranged on the upper mounting surface, and the servo motor and the screw module 4024 are arranged on the lower mounting surface. A connecting slot is provided between the upper mounting surface and the lower mounting surface of the tooling base 40212, and the servo motor and the screw module 4024 are connected to the left detection and adjustment module 401 and the right detection and adjustment module 402 through the slot to drive the two to run along the Y-axis direction respectively.

[0055] After both the drive module and the detection and adjustment module 4 are installed on the tooling base 40212, the tooling base 40212 is mounted on the designated position of the base 1, that is, the left detection and adjustment module 401 is installed in the first predetermined installation position. At this point, the first displacement stop plate 4011 on the left detection and adjustment module 401 contacts one of the left and right air-floating guide rails 202, laying the foundation for the installation of the motor stator 302. The first motor stator 302 is then installed in the predetermined installation hole position of the base 1. The servo motor and the lead screw module 4024 drive the right detection and adjustment module 402 to move, causing the second displacement stop plate 4027 to contact the first side surface of the stator. While keeping the right detection and adjustment module 402 stationary, the fourth displacement sensor 4029 on the long-stroke guide rail 40211 is moved to measure and record the distance between the first motor stator 302 and the long-stroke guide rail 40211. Then install the second motor stator 302 and move the fourth displacement sensor 4029 to measure the distance of the second motor stator 302 in the Y-axis direction at this time, and compare it with the distance of the first motor stator 302 in the Y-axis direction to obtain the absolute value of the difference between the two. The allowable value of the absolute value is set in advance in the software program. When the absolute value of the obtained difference is not within the allowable value range, the program alarms and prompts the user whether the absolute value of the current difference is too large or too small. The position of the second motor stator 302 is adjusted accordingly. When the position of the second motor stator 302 is adjusted until the absolute value of the difference is within the allowable value range of the absolute value, the second motor stator 302 is locked, and so on until all motor stators 302 are installed.

[0056] In this solution, each component works together through precise mechanical connections and an electronic control system. The drive module precisely controls the movement of the right detection and adjustment module 402 via a computer control system to achieve precise adjustment of the installation position of the motor stator 302. The fourth displacement sensor 4029 also provides real-time feedback of position data to ensure continuous monitoring of installation accuracy. This collaborative approach achieves a highly precise and efficient installation process for the motor stator 302.

[0057] Furthermore, the right detection and adjustment module 402 also includes a second displacement stop plate 4027, which is fixed on the long-stroke guide rail 40211. The second displacement stop plate 4027 contacts the first side surface of the motor stator 302 close to the long-stroke guide rail 40211 to locate the operating position of the long-stroke guide rail 40211.

[0058] The second displacement stop plate 4027 and the long-stroke guide rail 40211 can be connected by bolts. To achieve more precise adjustment, a fine-tuning mechanism, such as a fine-tuning bolt or a wedge block, can be provided between the second displacement stop plate 4027 and the long-stroke guide rail 40211 to facilitate slight position adjustments during installation.

[0059] The second stop plate 4027 can be designed to provide surface contact with the motor stator 302 to reduce installation errors. To accommodate motor stators 302 of varying sizes, the second stop plate 4027 can also be designed to provide point or line contact. For example, several precisely machined raised points or raised lines can be provided on the second stop plate 4027 to serve as contact points with the motor stator 302.

[0060] The second displacement stop 4027 and the long-stroke guide rail 40211 work together to form a precise positioning system. The long-stroke guide rail 40211 provides movement in the Y-axis direction, while the second displacement stop 4027 provides a precise positioning reference. The combination of these two components enables the device to adapt to different installation requirements for the motor stator 302 while ensuring consistent installation accuracy. When the motor stator 302 needs to be installed, the drive module first controls the long-stroke guide rail 40211 to move to the appropriate position. Then, the second displacement stop 4027 contacts the first side surface of the motor stator 302, and this contact point serves as the positioning reference. Simultaneously, the fourth displacement sensor 4029 measures the distance between the motor stator 302 and the long-stroke guide rail 40211 in the Y-axis direction in real time. This distance data can be used to verify the accuracy of the installation position and serve as a reference for subsequent installation of additional motor stators 302. By maintaining this consistent distance, the alignment of all motor stators 302 in the Y-axis direction can be ensured.

[0061] This design not only improves the installation accuracy of motor stator 302 but also greatly simplifies the installation process. Operators no longer need to rely on highly skilled experience to determine installation positions. Instead, they can rely on precise mechanical positioning and sensor feedback to complete the installation. This significantly improves installation efficiency while also enhancing the consistency and repeatability of installation accuracy.

[0062] Furthermore, the long-stroke guide rail 40211 is a structure that can be extended and retracted along the X-axis direction to facilitate the installation of multiple motor stators 302.

[0063] By employing a long-stroke guide rail structure that can be extended and retracted along the X-axis, this application effectively solves the problem of installing multiple motor stators 302. This design allows the long-stroke guide rail 40211 to adjust its length as needed, thereby covering motor stators 302 in different positions. This not only simplifies the installation process and improves installation efficiency, but also ensures the relative position accuracy between multiple motor stators 302. Furthermore, this retractable structure increases the system's adaptability, making it suitable for precision air-bearing guide rail equipment of varying lengths and configurations.

[0064] Specifically, the retractable structure of the long-stroke guide rail 40211 can be achieved in a variety of ways. For example, a telescopic slide rail design can be used to allow the long-stroke guide rail 40211 to freely extend and retract in the X-axis direction. Another possible implementation method is to use a modular design, adjusting the length of the long-stroke guide rail 40211 by adding or removing modules. These designs not only accommodate air-bearing guide rail systems of varying lengths but also allow for flexible adjustments during installation based on actual needs.

[0065] The retractable structure of the long-stroke guide rail 40211 forms a coordinated whole with other components of the right detection and adjustment module 402, such as the fourth displacement sensor 4029. As the long-stroke guide rail 40211 retracts and retracts, the fourth displacement sensor 4029 adjusts accordingly, ensuring they always maintain accurate contact and measurement with the motor stator 302. This coordinated design allows the right detection and adjustment module 402 to adapt to precision air-bearing guide rail systems of varying lengths and configurations while maintaining high-precision detection and adjustment capabilities.

[0066] Furthermore, the right detection and adjustment module 402 further includes an air bearing, which is disposed below the long-stroke guide rail 40211 and is used to support the long-stroke guide rail 40211 and prevent the long-stroke guide rail 40211 from bending due to friction.

[0067] Among them, the air bearing is arranged under the long-stroke guide rail 40211, providing it with stable, low-friction support, which not only improves the movement accuracy and stability of the guide rail, but also helps to achieve smooth extension and retraction of the long-stroke guide rail 40211 in the X-axis direction.

[0068] Air bearings can take many forms, such as flat or cylindrical. These bearings use compressed air to form a thin air film on the bearing surface, which maintains a small gap between the long-travel guide rail 40211 and the supporting surface, thus achieving contactless support.

[0069] Multiple air bearings can be provided, including at least a first air bearing 4028 and a second air bearing 40210 arranged at intervals, to support the long-stroke guide rail from different positions, thereby avoiding the long-stroke guide rail 40211 from being overhanging too long along the X-axis direction, causing the long-stroke guide rail 40211 to bend, and further causing the problem of inaccurate installation of the motor stator 302.

[0070] Furthermore, the linear motor 3 further includes a motor mover 301, which is mounted on the motor stator 302 and is used to be fixed to the air-bearing slide to drive the air-bearing slide to run along the X-axis direction;

[0071] The left detection and adjustment module 401 also has a second preset installation position, which is used as an installation reference for the motor mover 301 .

[0072] The proposed mounting system for the linear motor 3 of the precision air-bearing guide 202 utilizes a motor mover 301 to achieve precise drive control of the air-bearing slide. The motor mover 301 is mounted on the motor stator 302 and fixedly connected to the air-bearing slide. This design enables the linear motor 3 to directly drive the air-bearing slide along the X-axis, thereby improving the motion accuracy and efficiency of the entire system.

[0073] The left detection and adjustment module 401 is also provided with a third displacement stop plate 4017. When installing the motor mover 301, the left detection and adjustment module 401 is first moved to the second preset installation position, so that the third displacement stop plate 4017 on the left detection and adjustment module 402 is in close contact with the second side surface of the motor stator 302 close to the left detection and adjustment module 401, and the left detection and adjustment module 401 is kept stationary, thus laying a foundation for the precise installation of the motor mover 301.

[0074] Furthermore, the left detection and adjustment module 401 also includes a first linear electric cylinder module 4013, which contacts the motor mover 301 and is used to push the motor mover 301 to run toward the right detection and adjustment module 402 to ensure that the motor mover 301 is symmetrically installed along the central axis of the motor stator 302 in the X-axis direction.

[0075] In this application, the left detection and adjustment module 401 includes a first linear actuator module 4013, which is in direct contact with the motor mover 301. This design allows the first linear actuator module 4013 to precisely control the position of the motor mover 301. Specifically, the first linear actuator module 4013 can propel the motor mover 301 toward the right detection and adjustment module 402 through telescopic motion.

[0076] Among them, the driving force of the first linear electric cylinder module 4013 can be adjusted as needed. For example, an electric cylinder driven by a stepper motor or a servo motor can be used to achieve precise position control. Among them, the stepper motor can provide precise angle control, while the servo motor can provide higher dynamic response and positioning accuracy. Thus, through the precise control of the first linear electric cylinder module 4013, the motor mover 301 can be accurately positioned at a symmetrical position of the motor stator 302 in the X-axis direction. This symmetrical installation is crucial to the performance of the linear motor 3 because it can ensure that the motor mover 301 is evenly stressed during operation, reduce vibration and noise, and improve operational stability and accuracy.

[0077] Specifically, when the motor mover 301 is pushed to the correct position, its position can be detected by a position sensor (eddy current displacement sensor) to ensure that it is aligned with the central axis of the motor stator 302. This feedback mechanism can further improve installation accuracy.

[0078] Furthermore, the right detection and adjustment module 402 also includes a second linear electric cylinder module 4021 and a third linear electric cylinder module 4023 that are spaced apart. The second linear electric cylinder module 4021 and the third linear electric cylinder module 4023 are in contact with the motor mover 301 and are used to push the motor mover 301 to run in the direction of the left detection and adjustment module 401 to ensure that the motor mover 301 is symmetrically installed along the central axis of the motor stator 302 in the X-axis direction.

[0079] The spacing between the second linear cylinder module 4021 and the third linear cylinder module 4023 provides multi-point support and adjustment capabilities. By adjusting the thrust of these two linear cylinder modules, more precise position control of the motor mover 301 can be achieved. The direct contact between the linear cylinder module and the motor mover 301 ensures accurate force transmission and avoids errors caused by indirect adjustment. Furthermore, the two linear cylinder modules work together to precisely position the motor mover 301 in the X-axis direction, ensuring its symmetrical installation along the central axis of the motor stator 302.

[0080] In practical applications, the technical solution of this application effectively solves the problem of insufficient installation precision of the motor mover 301 by utilizing the synergistic effect of the left and right detection and adjustment modules 4. Specifically, the first linear electric cylinder module 4013 of the left detection and adjustment module 401 and the second and third linear electric cylinder modules 4023 of the right detection module form a three-point adjustment mechanism. This design enables precise control of the position of the motor mover 301, improving installation stability and reliability.

[0081] Furthermore, the left detection and adjustment module 401 further includes a short-stroke guide rail 4014 and a first displacement sensor 4012, a displacement detection target 4016, and a third displacement stop plate 4017 disposed on the short-stroke guide rail 4014; the right detection and adjustment module 402 further includes a second displacement sensor 4022 and a third displacement sensor 4025;

[0082] The third displacement stop plate 4017 contacts the second side surface of the motor stator 302 close to the short-stroke guide rail 4014; the first displacement sensor 4012 is used to detect a first distance between the second side surface and the displacement detection target 4016;

[0083] The second displacement sensor 4022 is used to detect a second distance from the first side surface of the motor stator 302 ; the third displacement sensor 4025 is used to detect a third distance from the displacement detection target 4016 ;

[0084] The first distance, the second distance, and the third distance are used to calculate the thickness of the motor stator 302 in the Y-axis direction.

[0085] Among them, the first displacement sensor 4012 , the second displacement sensor 4022 , and the third displacement sensor 4025 can all be eddy current displacement sensors.

[0086] Specifically, this technical solution achieves precise measurement of the thickness of the motor stator 302 by installing multiple eddy current displacement sensors and displacement detection targets 4016 on the left detection and adjustment module 401 and the right detection and adjustment module 402. Specifically, the third displacement stop plate 4017 on the left detection and adjustment module 401 contacts the second side surface of the motor stator 302, and the first displacement sensor 4012 measures the distance between the second side surface and the displacement detection target 4016. The second displacement sensor 4022 on the right detection and adjustment module 402 measures the distance between the second side surface and the displacement detection target 4016, and the third displacement sensor 4025 measures the distance between the second side surface and the displacement detection target 4016. Using these three distance measurements, the thickness of the motor stator 302 in the Y-axis direction can be accurately calculated.

[0087] The technical solution of this application solves the technical problem of accurately measuring the thickness of a motor stator 302 by combining multi-point measurement with non-contact measurement. This measurement method not only improves measurement accuracy but also enables automated measurement, increasing installation efficiency. Furthermore, the use of non-contact measurement reduces wear on the surface of the motor stator 302, helping to maintain its performance.

[0088] Furthermore, the measurement system of the present application can be implemented in a variety of ways. For example, the first displacement sensor 4012 can be fixed to the short-stroke guide rail 4014, while the displacement detection target 4016 can be positioned opposite the motor stator 302. The second and third displacement sensors 4025 can be installed at different locations on the right detection and adjustment module 402 to ensure measurement accuracy.

[0089] Thus, the measurement system of the present application forms a closed-loop measurement structure. The contact between the third displacement stop plate 4017 and the second side surface of the motor stator 302 provides a reference point, while the measurement results of the three eddy current displacement sensors provide accurate distance data. This structural design ensures that the measurement process is not affected by the surface conditions of the motor stator 302, and can obtain highly accurate thickness data.

[0090] Specifically, the measurement process can be performed as follows: First, the third displacement stop plate 4017 is brought into contact with the second side surface of the motor stator 302 to establish a reference point. Next, the first displacement sensor 4012 is activated to measure a first distance between the second side surface and the displacement detection target 4016. Next, the second displacement sensor 4022 is activated to measure a second distance between the second side surface and the first side surface of the motor stator 302. Finally, the third displacement sensor 4025 is used to measure a third distance between the second side surface and the displacement detection target 4016. Using these three distance values, a simple mathematical calculation can be used to determine the precise thickness of the motor stator 302 in the Y-axis direction. Specifically, the formula: Thickness = (Third Distance - Second Distance - First Distance) can be used.

[0091] Please refer to Figure 5 In the second aspect, a method for installing a linear motor 3 of a precision air-floating guide rail 202 is applied to any of the above-mentioned linear motor installation devices for precision air-floating guide rails, and the method comprises the following steps:

[0092] S1: Adjust the left detection and adjustment module 401 to a first preset installation position and keep the left detection and adjustment module 401 stationary;

[0093] S2: Fix the first motor stator 302 in a predetermined mounting hole on the air-floating guide rail device, and drive the right detection and adjustment module 402 according to the fixed position of the motor stator 302, so that the second displacement stop plate 4027 on the right detection and adjustment module 402 is in close contact with the first side surface of the motor stator 302;

[0094] S3: Obtain the distance of the first motor stator 302 detected by the fourth displacement sensor 4029, and install the remaining motor stators 302 based on the distance.

[0095] The predetermined mounting hole is provided on the base 1 and is the mounting position of the first motor stator 302 set during the processing of the base 1 .

[0096] By installing the left and right detection and adjustment modules 402 on the base 1, and using the first displacement stop plate 4011 to abut the air-floating guide rail 202, and the second displacement stop plate 4027 to abut the first side surface of the motor stator 302, the installation reference and positional accuracy of the motor stator 302 are ensured. The fourth displacement sensor 4029 measures the distance of the motor stator 302 in the Y-axis direction, guiding the installation of other motor stators 302, thereby resolving the issue of inability to adjust stator installation accuracy. This method improves the efficiency and accuracy of the installation process through precise detection and adjustment steps, reduces reliance on operator experience, and achieves efficient and high-precision installation. Furthermore, through precise displacement measurement, the splicing accuracy between the motor stators 302 is ensured, meeting the high-precision requirements of precision air-floating modules.

[0097] In the technical solution of this application, the installation sequence and positional relationship of the left detection and adjustment module 401 and the right detection and adjustment module 402 are crucial. By adjusting the position of the left detection and adjustment module 401, the first displacement stop plate 4011 is closely attached to one side of the air-floating guide rail 202, ensuring that the reference for the entire installation process remains unchanged. The right detection and adjustment module 402 is then moved to measure and adjust the installation position of the motor stator 302. In this way, the accuracy of the motor stator 302 can be adjusted in real time during the installation process, ensuring the consistency of the installation of each motor stator 302.

[0098] Specifically, the first displacement stop plate 4011 on the left detection and adjustment module 401 is in close contact with the air-floating guide rail 202, ensuring the stability of the installation base. The second displacement stop plate 4027 on the right detection and adjustment module 402 contacts the first side surface of the motor stator 302. The fourth displacement sensor 4029 measures the distance between the second displacement stop plate 4011 and the long-stroke guide rail 40211, guiding the subsequent installation of the motor stator 302. This method effectively reduces the requirements for workpiece shape and position accuracy at the installation location, thereby reducing manufacturing costs.

[0099] Furthermore, after step S3, the method includes: S4: installing the motor mover 301;

[0100] Step S4 includes:

[0101] S41: driving the left detection and adjustment module 401 to operate, so that the left detection and adjustment module 401 is located at a second preset installation position, and the left detection and adjustment module 401 remains stationary;

[0102] S42: Obtaining a first distance between the left detection and adjustment module 401 and the motor stator 302;

[0103] S43: Obtaining a second distance between the right detection and adjustment module 402 and the motor stator 302;

[0104] S44: Obtaining a third distance between the right detection and adjustment module 402 and the left detection and adjustment module 401;

[0105] S45: Calculating the thickness of the motor stator 302 in the Y-axis direction according to the first distance, the second distance, and the third distance;

[0106] S46: Install the motor mover 301 according to the thickness dimension.

[0107] Among them, the left detection and adjustment module 401 is driven to move by the servo motor and the screw module 4024, so that the third displacement stop plate 4017 is close to the second side of the first motor stator 302, and then the position of the left detection and adjustment module 401 is kept unchanged; after the left detection and adjustment module 401 is assembled, the first distance refers to the distance between the third displacement stop plate 4017 and the displacement detection target 4016, which is a constant value d1; similarly, after the right detection and adjustment module 402 is assembled, the second distance refers to the distance between the third displacement sensor 4025 and the motor The distance between one side of the stator 302 is a constant value d2. At this time, the third displacement sensor 4025 measures the third distance d3 between the left detection and adjustment module 401 and the right detection and adjustment module 402 through the displacement detection target 4016. Therefore, when the entire system is installed, it can quickly detect the thickness value H (H=d3-d2-d1) of the stator of each different model of the linear motor 3. The sum of the distances between the two sides of the motor mover 301 and the third displacement stop plate 4017 and the second displacement stop plate 4027 is H / 2, which can be regarded as the ideal distance for mover installation. The motor mover 301 is initially locked to the air bearing slide and moves along the air bearing guide rail 202 to between the first linear cylinder module 4013, the second linear cylinder module 4021, and the third linear cylinder module 4023. At this point, the second displacement sensor 4022 detects the distance between the motor mover 301 and the long-stroke guide rail 40211 and compares it with the ideal distance. If the motor mover 301 is too close to the long-stroke guide rail 40211, the second linear cylinder module 4021 and the third linear cylinder module 4023 push the motor mover 301 to the left, toward the detection and adjustment module 401. Conversely, if the distance is too far, the first linear cylinder module 4013 pushes the motor mover 301 to the right, toward the detection and adjustment module 402. Once the ideal distance is reached, the motor mover 301 is locked. This completes the efficient and accurate installation of the linear motor 3.

[0108] In the embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interface, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0109] In addition, the units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0110] Furthermore, the functional modules in each embodiment of the present application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0111] In this document, relational terms such as first and second, etc. are used merely to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any actual relationship or order between these entities or operations.

[0112] The foregoing is merely an embodiment of the present application and is not intended to limit the scope of protection of the present application. Persons skilled in the art will readily appreciate that the present application may be modified and altered in various ways. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A linear motor mounting device for a precision air-floating guide rail, the mounting device being arranged on an air-floating guide rail device and used for detecting a linear motor (3) located on the air-floating guide rail device, wherein the linear motor (3) comprises at least a plurality of motor stators (302) spaced apart along an X-axis direction, and is characterized in that: The installation device at least comprises a driving module and a detection and adjustment module (4); The detection and adjustment module (4) comprises at least a left detection and adjustment module (401) and a right detection and adjustment module (402); the left detection and adjustment module (401) has a first preset installation position, which is used as an installation reference for the detection and adjustment module (4); The right detection and adjustment module (402) comprises at least a long-stroke guide rail (40211) and a fourth displacement sensor (4029) movably mounted on the long-stroke guide rail (40211), wherein the fourth displacement sensor (4029) runs along the long-stroke guide rail (40211) to detect the distance from each motor stator (302) in the Y-axis direction, so that the distance between each motor stator (302) in the Y-axis direction remains consistent; The driving module is at least used to drive the right detection and adjustment module (402) to move in the Y-axis direction.

2. A linear motor installation device for a precision air-floating guide rail according to claim 1, characterized in that: The right detection and adjustment module (402) further includes a second displacement stop plate (4027), which is fixed on the long-stroke guide rail (40211). The second displacement stop plate (4027) contacts the first side surface of the motor stator (302) close to the long-stroke guide rail (40211) to locate the operating position of the long-stroke guide rail (40211).

3. The linear motor installation device for a precision air-floating guide rail according to claim 2, characterized in that: The long-stroke guide rail (40211) is a structure that can be extended and retracted along the X-axis direction to facilitate the installation of multiple motor stators (302).

4. A linear motor installation device for a precision air-floating guide rail according to claim 3, characterized in that: The right detection and adjustment module (402) further comprises an air bearing, which is arranged below the long-stroke guide rail (40211) and is used to support the long-stroke guide rail (40211) and prevent the long-stroke guide rail (40211) from bending due to friction.

5. The linear motor installation device for a precision air-floating guide rail according to claim 1, characterized in that: The linear motor (3) further comprises a motor mover (301), the motor mover (301) being mounted on the motor stator (302) and being used to be fixed to the air-floating slide on the air-floating guide rail device, and to drive the air-floating slide to run along the X-axis direction; The left detection and adjustment module (401) also has a second preset installation position, which is used as an installation reference for the motor mover (301).

6. The linear motor installation device for a precision air-floating guide rail according to claim 5, characterized in that: The left detection and adjustment module (401) further comprises a first linear electric cylinder module (4013), wherein the first linear electric cylinder module (4013) contacts the motor mover (301) and is used to push the motor mover (301) to move in the direction of the right detection and adjustment module (402), so as to ensure that the motor mover (301) is symmetrically installed along the central axis of the motor stator (302) in the X-axis direction.

7. The linear motor installation device for a precision air-floating guide rail according to claim 6, characterized in that: The right detection and adjustment module (402) further comprises a second linear electric cylinder module (4021) and a third linear electric cylinder module (4023) arranged at intervals, wherein the second linear electric cylinder module (4021) and the third linear electric cylinder module (4023) are in contact with the motor mover (301) and are used to push the motor mover (301) to move in the direction of the left detection and adjustment module (401), so as to ensure that the motor mover (301) is symmetrically installed along the central axis of the motor stator (302) in the X-axis direction.

8. The linear motor installation device for a precision air-floating guide rail according to claim 7, characterized in that: The left detection and adjustment module (401) further comprises a short-stroke guide rail (4014) and a first displacement sensor (4012), a displacement detection target (4016), and a third displacement stop plate (4017) arranged on the short-stroke guide rail (4014); the right detection and adjustment module (402) further comprises a second displacement sensor (4022) and a third displacement sensor (4025); The third displacement stop plate (4017) contacts the second side surface of the motor stator (302) close to the short-stroke guide rail (4014); the first displacement sensor (4012) is used to detect a first distance between the second side surface and the displacement detection target (4016); The second displacement sensor (4022) is used to detect a second distance from the first side surface of the motor stator (302); the third displacement sensor (4025) is used to detect a third distance from the displacement detection target (4016); The first distance, the second distance, and the third distance are used to calculate the thickness of the motor stator in the Y-axis direction.

9. A method for installing a linear motor on a precision air-bearing guide rail, applied to the installation device for a linear motor on a precision air-bearing guide rail according to any one of claims 1 to 8, characterized in that: The method comprises the steps of: S1: adjusting the left detection and adjustment module (401) to a first preset installation position, and keeping the left detection and adjustment module (401) stationary; S2: fixing the first motor stator (302) in a predetermined mounting hole on the air-floating guide rail device, and driving the right detection and adjustment module (402) to operate according to the fixed position of the motor stator (302), so that the right detection and adjustment module (402) is closely attached to the first side surface of the motor stator (302); S3: Obtain the distance of the first motor stator (302) detected by the fourth displacement sensor (4029), and install the remaining motor stators (302) based on the distance.

10. The method for installing a linear motor of a precision air-floating guide rail according to claim 9, characterized in that: After step S3, the following steps are included: S4: installing the motor mover (301); Step S4 includes: S41: driving the left detection and adjustment module (401) to operate, so that the left detection and adjustment module (401) is located at a second preset installation position, and the left detection and adjustment module (401) remains stationary; S42: Acquiring a first distance between the left detection and adjustment module (401) and the motor stator (302); S43: Acquiring a second distance between the right detection and adjustment module (402) and the motor stator (302); S44: Obtaining a third distance between the right detection and adjustment module (402) and the left detection and adjustment module (401); S45: Calculating the thickness of the motor stator (302) in the Y-axis direction according to the first distance, the second distance, and the third distance; S46: Install the motor mover (301) according to the thickness dimension.

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