Electromagnetically-driven high-precision linear module

Abstract

The utility model discloses an electromagnetically-driven high-precision linear module which comprises a base and a sliding rail assembly, the sliding rail assembly is installed in the base, a magnetic rail and a mover connected with the magnetic rail in a sliding mode are arranged in the base, the sliding rail assembly is connected with a sliding table in a sliding mode, and the sliding table is fixedly connected with the mover. A sliding table is arranged on the base, a shaft rod is arranged at one end of the sliding table, the sliding table is detachably connected with the shaft rod, a receding hole is formed in the base, the shaft rod penetrates through the receding hole, the shaft rod is in sliding connection with the hole wall of the receding hole, and the shaft rod is used for driving a workpiece to move; the magnetic force generated by the magnetic track is adjusted by adjusting the magnitude of current flowing through the magnetic track, then the rotor moves under the action of the magnetic force and drives the sliding table to move on the sliding rail assembly, meanwhile, the movement of the sliding table drives the shaft rod to move, and the movement of the shaft rod and the movement of the sliding table can be directly transmitted to a workpiece.

Description

Technical Field

[0001] This utility model belongs to the technical field of linear modules, specifically a high-precision linear module driven by electromagnetics. Background Technology

[0002] A linear module is a mechanical device used to achieve linear motion. It typically consists of a motor, guide rails, slides, and transmission systems, and is widely used in automation equipment, robotic arms, handling systems, packaging equipment, and other fields.

[0003] For example, the "linear module" disclosed in patent document "CN104948695A" uses a motor and a lead screw pair to drive the platform to move. However, considering the error when the drive motor and the lead screw pair are in sync, it is difficult to meet the requirement of higher precision for the linear module.

[0004] Based on this, this utility model proposes a high-precision linear module driven by electromagnetic force. Utility Model Content

[0005] The purpose of this invention is to provide a high-precision linear module driven by electromagnetics to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-precision linear module driven by electromagnetic means includes a base and a slide rail assembly. The slide rail assembly is installed inside the base. A magnetic rail and a mover slidably connected to the magnetic rail are disposed inside the base. A slide table is slidably connected to the slide rail assembly. The slide table is fixedly connected to the mover. A shaft is disposed at one end of the slide table. The slide table and the shaft are detachably connected. The base has a clearance hole. The shaft passes through the clearance hole and is slidably connected to the wall of the clearance hole. The shaft is used to drive the workpiece to move. A cover plate is disposed on the base and is detachably connected to the base.

[0008] A further technical solution includes a circuit board on the base, an absolute reading head on the circuit board, an absolute grating ruler above the absolute reading head, a mounting plate on the slide, the absolute grating ruler mounted on the mounting plate, and the absolute reading head used to read the value of the absolute grating ruler.

[0009] In a further technical solution, the wall of the clearance hole is coated with a lubricating coating.

[0010] In a further technical solution, a magnetic spring clamping block and a constant force spring are provided at one end of the base. One end of the constant force spring is fixedly connected to the slide table, and the other end of the constant force spring is connected to the magnetic spring clamp.

[0011] In a further technical solution, a guide cylinder is provided on the slide, the magnetic spring is fixedly connected to the guide cylinder, and the guide cylinder is fixedly connected to the slide.

[0012] In a further technical solution, the slide rail assembly includes a guide rail and a slider, and an anti-collision post is provided on one side of the guide rail, wherein the anti-collision post is a flexible cylinder.

[0013] In a further technical solution, a limiting block is provided on one side of the shaft, and the limiting block is fixedly connected to the base. The limiting block is used to restrict the movement of the shaft away from the clearance hole.

[0014] In a further technical solution, a second anti-collision post is provided on one side of the moving part, and the second anti-collision post is fixedly connected to the base.

[0015] The beneficial effects of this utility model are:

[0016] The operator generates inductance lines through the magnetic rail and adjusts the magnetic force generated by the magnetic rail by adjusting the current flowing through the magnetic rail. Then, the mover moves under the action of the magnetic force, which in turn drives the slide table to move on the slide rail assembly. At the same time, the movement of the slide table drives the movement of the shaft bar. The shaft bar slides and connects to the wall of the clearance hole. Through the shaft bar, the movement of the slide table can be directly transmitted to the workpiece, realizing high-precision movement of the workpiece.

[0017] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0018] Figure 1 : A three-dimensional structural diagram of this utility model.

[0019] Figure 2 : A three-dimensional structural diagram of the hidden cover plate of this utility model.

[0020] Figure 3 : A three-dimensional structural diagram of the concealed cover plate and slide table of this utility model.

[0021] Figure 4 This utility model Figure 3 Enlarged view of part A.

[0022] Reference numerals: 1. Base; 2. Slide rail assembly; 21. Guide rail; 22. Slider; 3. Magnetic rail; 4. Mover; 5. Slide table; 6. Shaft; 7. Alternating hole; 8. Circuit board; 10. Absolute grating ruler; 11. Mounting plate; 12. Magnetic spring clamping block; 13. Constant force spring; 14. Guide cylinder; 16. Anti-collision post one; 17. Anti-collision post two; 18. Limiting block; 19. Cover plate Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Please refer to Figure 1-4 ;

[0025] A high-precision linear module driven by electromagnetic force includes a base 1 and a slide rail assembly 2. The slide rail assembly 2 is installed inside the base 1. A magnetic rail 3 and a mover 4 slidably connected to the magnetic rail 3 are disposed inside the base 1. The magnetic rail 3 in the base 1 can generate an electromagnetic field through an energized coil. The magnetic force generated can be controlled by adjusting the magnitude and direction of the current. The mover 4 can slide on the magnetic rail 3. When current passes through the magnetic rail 3, the interaction force between the generated magnetic field and the mover 4 causes the mover 4 to move along the magnetic rail 3. In this embodiment, the magnetic rail 3 includes two magnetic yokes and two left and right plates. The two ends of the magnetic yokes are respectively connected to the left and right plates. The magnetic yokes are provided with neatly arranged... The magnet; the slide rail assembly 2 is located on one side of the magnetic yoke, and the slide rail assembly 2 is slidably connected to the slide table 5. Specifically, the slide rail assembly 2 includes a guide rail 21 and a slider 22, the guide rail 21 and the slider 22 are slidably connected, the slider 22 is provided with the slide table 5, the slide table 5 is fixedly connected to the mover 4, so that the movement of the mover 4 directly drives the slide table 5 to move, one end of the slide table 5 is provided with a shaft 6, the slide table 5 and the shaft 6 are detachably connected, the base 1 is provided with a clearance hole 7, the shaft 6 passes through the clearance hole 7, the shaft 6 is slidably connected to the hole wall of the clearance hole 7, the shaft 6 is used to drive the workpiece to move; the base 1 is provided with a cover plate 19, the cover plate 19 is detachably connected to the base 1.

[0026] Specifically, the operator generates an inductance line through the magnetic rail 3, and adjusts the magnetic force generated by the magnetic rail 3 by adjusting the current flowing through the magnetic rail 3. Then, the mover 4 moves under the action of the magnetic force, which drives the slide table 5 to move on the slide rail assembly 2. At the same time, the movement of the slide table 5 drives the shaft 6 to move. The shaft 6 is slidably connected to the wall of the clearance hole 7. Through the shaft 6, the movement of the slide table 5 can be directly transmitted to the workpiece, realizing high-precision movement of the workpiece.

[0027] In this embodiment, a circuit board 8 is provided on the base 1, an absolute value reading head is provided on the circuit board 8, an absolute grating ruler 10 is provided above the absolute value reading head, a mounting plate 11 is provided on the slide 5, the absolute grating ruler 10 is mounted on the mounting plate 11, and the absolute value reading head is used to read the value of the absolute grating ruler 10.

[0028] Specifically, when circuit board 8 is powered on, the light source in the absolute value reading head begins to emit light. The light passes through the transparent and opaque areas of the absolute grating ruler 10, forming an interference pattern. The photodetector in the absolute value reading head receives the light passing through the absolute grating ruler 10 and generates a corresponding electrical signal according to the change in light intensity. The circuit inside the absolute value reading head decodes the received electrical signal and extracts the corresponding absolute position value on the absolute grating ruler 10.

[0029] In this embodiment, the wall of the clearance hole 7 is coated with a lubricating coating, such as a polytetrafluoroethylene (PTFE) coating or a nano-lubricant. The PTFE coating has excellent low friction characteristics and corrosion resistance, while the nano-lubricant can reduce friction and improve lubrication at the microscopic level. The use of the lubricating coating reduces the coefficient of friction between the shaft 6 and the wall of the clearance hole 7, thereby reducing motion resistance and improving sliding efficiency. In high-precision applications, wear can affect the positioning accuracy and service life of the linear module. The use of a lubricating coating can effectively reduce wear and extend the service life of the equipment.

[0030] In this embodiment, a magnetic spring clamping block 12 and a constant force spring 13 are provided at one end of the base 1. One end of the constant force spring 13 is fixedly connected to the slide table 5, and the other end of the constant force spring 13 is connected to the magnetic spring clamp. Furthermore, in this embodiment, a guide cylinder 14 is provided on the slide table 5. The magnetic spring is fixedly connected to the guide cylinder 14, and the guide cylinder 14 is fixedly connected to the slide table 5.

[0031] In this embodiment, a first anti-collision post 16 is provided on one side of the guide rail 21. The first anti-collision post 16 is a flexible cylinder. A second anti-collision post 17 is provided on one side of the mover 4. The second anti-collision post 17 is fixedly connected to the base 1. In this embodiment, a limit block 18 is provided on one side of the shaft 6. The limit block 18 is located on the side of the shaft 6 away from the avoidance hole 7. The limit block 18 is fixedly connected to the base 1. The limit block 18 is used to limit the movement of the shaft 6 away from the avoidance hole 7.

[0032] Specifically, the anti-collision post 16 is located on one side of the guide rail 21, which restricts the distance that the slider 22 can move toward the anti-collision post 16, thereby restricting the distance that the shaft 6 can move toward the clearance hole 7, and at the same time restricting the distance that the mover 4 can move toward the magnetic rail 3. This effectively prevents the mover 4 and the slide table 5 from being damaged by collision during operation, reduces mechanical failures and damage caused by collision, and thus improves the reliability and service life of the linear module.

[0033] More specifically, the limiting block 18 is located on one side of the shaft 6, which restricts the distance that the shaft 6 can move toward the slide table 5, thereby restricting the distance that the slide table 5 can move toward the constant force spring 13, and at the same time restricting the distance that the mover 4 can move toward the other side of the magnetic track 3. Thus, through the anti-collision post 16 and the limiting block 18, the distance that the slide table 5 can move can be restricted, thereby restricting the distance that the mover 4 can slide on the magnetic track 3, thereby protecting the mover 4.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A high-precision linear module driven by electromagnetic force, characterized in that, The system includes a base (1) and a slide rail assembly (2). The slide rail assembly (2) is installed inside the base (1). The base (1) is provided with a magnetic rail (3) and a mover (4) that is slidably connected to the magnetic rail (3). The slide rail assembly (2) is slidably connected to a slide table (5). The slide table (5) is fixedly connected to the mover (4). One end of the slide table (5) is provided with a shaft (6). The slide table (5) and the shaft (6) are detachably connected. The base (1) has a clearance hole (7). The shaft (6) passes through the clearance hole (7). The shaft (6) is slidably connected to the wall of the clearance hole (7). The shaft (6) is used to drive the workpiece to move. A cover plate (19) is provided on the base (1). The cover plate (19) is detachably connected to the base (1).

2. The electromagnetically driven high-precision linear module according to claim 1, characterized in that, A circuit board (8) is provided on the base (1), an absolute value reading head is provided on the circuit board (8), an absolute grating ruler (10) is provided above the absolute value reading head, a mounting plate (11) is provided on the slide (5), the absolute grating ruler (10) is mounted on the mounting plate (11), and the absolute value reading head is used to read the value of the absolute grating ruler (10).

3. The electromagnetically driven high-precision linear module according to claim 1, characterized in that, The wall of the clearance hole (7) is coated with a lubricating coating.

4. The electromagnetically driven high-precision linear module according to claim 1, characterized in that, The base (1) is provided with a magnetic spring clamping block (12) and a constant force spring (13) at one end. One end of the constant force spring (13) is fixedly connected to the slide (5), and the other end of the constant force spring (13) is connected to the magnetic spring clamp.

5. A high-precision linear module driven by electromagnetic force according to claim 4, characterized in that, A guide cylinder (14) is provided on the slide (5), the magnetic spring is fixedly connected to the guide cylinder (14), and the guide cylinder (14) is fixedly connected to the slide (5).

6. A high-precision linear module driven by electromagnetic force according to claim 1, characterized in that, The slide rail assembly (2) includes a guide rail (21) and a slider (22). A first anti-collision post (16) is provided on one side of the guide rail (21), and the first anti-collision post (16) is a flexible cylinder.

7. A high-precision linear module driven by electromagnetic force according to claim 1, characterized in that, A limiting block (18) is provided on one side of the shaft (6). The limiting block (18) is fixedly connected to the base (1). The limiting block (18) is used to restrict the movement of the shaft (6) away from the clearance hole (7).

8. A high-precision linear module driven by electromagnetic force according to claim 1, characterized in that, A second anti-collision post (17) is provided on one side of the moving part (4), and the second anti-collision post (17) is fixedly connected to the base (1).

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