Linear driving module
By adopting a fixed lead screw and belt drive design in the linear drive module, the problem of insufficient rigidity of long-stroke lead screws is solved, achieving high-precision load movement and ensuring the stability and accuracy of the lead screw.
Patent Information
- Application Number
- CN202520256722.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-18
AI Technical Summary
In existing linear drive modules, long-stroke lead screws suffer from insufficient rigidity during rotation, which affects the motion accuracy of the load.
It adopts a fixed lead screw design, combined with a driver, transmission components and a platform, to achieve high-precision linear motion through belt drive, avoiding lead screw rotation. Guide rails and sliders are used for motion guidance to ensure the stability of the platform.
It achieves high-precision linear motion under load, avoids damage to the lead screw, and improves the rigidity and accuracy of the motion.
Smart Images

Figure CN223872139U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of linear module technology, and in particular relates to a linear drive module. Background Technology
[0002] Linear drive modules, also known as linear modules, linear robots, or linear slides, are efficient and precise automated transmission devices. They convert the rotational motion of an electric motor into linear motion, integrating various components for linear reciprocating motion. They maintain high-precision linear motion under load, playing a crucial role in precise positioning and efficient transmission in automated equipment.
[0003] Existing linear drive modules often use lead screws as transmission components. Their working principle is that the motor drives the lead screw to rotate, which is then converted into high-precision linear motion of the load. For long-stroke lead screws, there is a problem of insufficient rotational rigidity in actual use. During long-term rotation, the lead screw will be damaged. The damaged lead screw will affect the motion accuracy of the load during continuous use. Utility Model Content
[0004] This invention overcomes the shortcomings of the prior art by providing a linear drive module to solve the problems existing in the prior art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a linear drive module, comprising...
[0006] A base, on which a fixing screw is provided;
[0007] The driving unit moves along the length of the fixed lead screw. The driving unit includes a driver, a transmission component, and a platform. The transmission component is connected to the driver via a belt. The transmission component is mounted on and meshes with the fixed lead screw. When the transmission component rotates, it moves along the length of the fixed lead screw. The platform is connected to the transmission component via a connector to follow the movement of the transmission component.
[0008] In a preferred embodiment of this utility model, the base is a rectangular structure, and the fixing screw is fixedly arranged along the length direction of the base.
[0009] In a preferred embodiment of this utility model, a guide rail is provided on the base, and the platform is connected to the guide rail via a slider to guide the movement of the platform.
[0010] In a preferred embodiment of this utility model, the driver is a motor, and the driver is connected to the platform via a side mounting block to follow the movement of the platform.
[0011] In a preferred embodiment of this utility model, the transmission component is a nut, and the transmission component is threadedly engaged with the fixed lead screw. When the transmission component rotates, the transmission component moves along the length direction of the fixed lead screw.
[0012] In a preferred embodiment of this utility model, a circular hollow protrusion is provided at the center of the platform, and the circular hollow protrusion is coaxially arranged with the fixing screw.
[0013] In a preferred embodiment of this utility model, the circular hollow protrusion end is connected to the transmission component via the connector.
[0014] In a preferred embodiment of this utility model, a cover plate is provided on the base to cover the fixing screw.
[0015] This utility model solves the defects existing in the background technology, and has the following beneficial effects:
[0016] The linear drive module of this invention can meet the high-precision linear motion of the load by using a fixed lead screw, without the need for a long-stroke lead screw to rotate. This effectively solves the problem of insufficient rigidity of long-stroke lead screws in actual use, thereby ensuring the high-precision motion of the load and avoiding damage to the lead screw. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0018] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present utility model;
[0019] Figure 2 This is a partial structural schematic diagram of a preferred embodiment of the present invention;
[0020] Figure 3 for Figure 2 Enlarged view of section A in the middle;
[0021] Figure 4 for Figure 2 Another perspective on the structure diagram;
[0022] Figure 5 This is a schematic diagram of the structure of the platform according to a preferred embodiment of the present invention;
[0023] In the figure: 10, base; 11, fixed lead screw; 20, drive unit; 21, driver; 22, transmission component; 23, platform; 231, circular hollow protrusion; 30, belt; 40, connector; 50, guide rail; 60, slider; 70, side mounting block; 80, cover plate. Detailed Implementation
[0024] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.
[0025] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0026] This embodiment provides a linear drive module that can meet the high-precision linear motion of the load by using a fixed lead screw 11, without the need for a long-stroke lead screw to rotate. This effectively solves the problem of insufficient rigidity of long-stroke lead screws in actual use, thereby ensuring the high-precision motion of the load and avoiding damage to the lead screw.
[0027] Combination Figures 1 to 5 As shown, the linear drive module of this embodiment includes a base 10 and a drive unit 20. A fixed lead screw 11 is provided on the base 10 and is fixedly installed on the base 10. During operation, the drive unit 20 moves along the length direction of the fixed lead screw 11 to prevent the fixed lead screw 11 from rotating, thereby avoiding the problem of insufficient rigidity of the fixed lead screw 11.
[0028] In this embodiment, the base 10 is a rectangular structure, and the fixing screw 11 is fixedly installed along the length of the base 10. The fixed screw 11 can meet the high-precision movement of the load and can effectively solve the rigidity problem of the fixing screw 11. A cover plate 80 is provided on the base 10 to cover the fixing screw 11. The cover plate 80 can play a dustproof role and prevent dust and other impurities from entering the base 10.
[0029] Combination Figures 2 to 4As shown, in this embodiment, the drive unit 20 moves along the length direction of the fixed lead screw 11. The drive unit 20 includes a driver 21, a transmission component 22, and a platform 23. The transmission component 22 is connected to the driver 21 via a belt 30. The transmission component 22 is mounted on the fixed lead screw 11 and meshes with it. When the transmission component 22 rotates, it moves along the length direction of the fixed lead screw 11. The platform 23 is connected to the transmission component 22 via a connector 40 to follow the movement of the transmission component 22. When the platform 23 needs to move, the driver 21 is activated, causing the transmission component 22 to rotate via the belt 30. Since the transmission component 22 meshes with the fixed lead screw 11, and the fixed lead screw 11 is in a fixed state, the transmission component 22 will move along the length direction of the fixed lead screw 11 during rotation, causing the entire drive unit 20 to move along the length direction of the fixed lead screw 11, thereby achieving high-precision movement of the platform 23.
[0030] In this embodiment, the driver 21 is a motor, which is connected to the platform 23 via the side mounting block 70 to follow the movement of the platform 23. The transmission component 22 is a nut, which is threadedly engaged with the fixed lead screw 11. When the transmission component 22 rotates, it moves along the length of the fixed lead screw 11. As the transmission component 22 is threadedly engaged with the fixed lead screw 11, it moves along the length of the fixed lead screw 11, thereby driving the platform 23 to move. The driver 21 is connected to the platform 23 via the side mounting block 70, so the driver 21 also moves synchronously.
[0031] Furthermore, in this embodiment, a guide rail 50 is provided on the base 10, and the platform 23 is connected to the guide rail 50 through a slider 60 to guide the movement of the platform 23. Under the cooperation of the guide rail 50 and the slider 60, the platform 23 is guided to move, ensuring the high-precision movement of the platform 23.
[0032] Combination Figure 2 , Figure 3 as well as Figure 5 As shown, a circular hollow protrusion 231 is provided at the center of the platform 23 in this embodiment. The circular hollow protrusion 231 is coaxially arranged with the fixing screw 11. The presence of the circular hollow protrusion 231 is beneficial for installing the fixing screw 11 and avoids interference between the fixing screw 11 and the platform 23, which is beneficial for the platform 23 to move stably.
[0033] In this embodiment, the end of the circular hollow protrusion 231 is connected to the transmission component 22 through the connector 40. Therefore, during the movement of the transmission component 22, the platform 23 will be driven to move.
[0034] In practical use, the linear drive module of this embodiment has a fixed lead screw 11 mounted on a base 10, and a transmission component 22 mounted on the fixed lead screw 11 and threadedly engaged with it. Since the fixed lead screw 11 is fixedly mounted and cannot rotate, when the transmission component 22 rotates, it will drive the entire drive unit 20 to move along the length of the fixed lead screw 11. Therefore, it meets the high-precision motion requirements of the load and can effectively solve the problem of insufficient rigidity of long-stroke lead screws in practical use, thereby ensuring high-precision motion of the load and avoiding damage to the lead screw.
[0035] While the present invention has been described above with reference to various embodiments, it should be understood that many changes and modifications can be made without departing from the scope of the present invention. That is, the methods, systems, or devices discussed above are merely examples. Various configurations can be appropriately omitted, substituted, or added to various processes or components. For example, in alternative configurations, methods can be performed in a different order than described, and / or various stages can be added, omitted, and / or combined. Moreover, features described with respect to certain configurations can be combined in various other configurations. Different aspects and elements of the configuration can be combined in a similar manner. Furthermore, as technology develops, many elements are merely examples and do not limit the scope of this disclosure or the claims.
[0036] Specific details are provided in the specification to offer a thorough understanding of exemplary configurations, including implementations. However, configurations can be practiced without these specific details; for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail to avoid obscuring the configuration. This description provides only exemplary configurations and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes can be made to the function and arrangement of the elements without departing from the spirit or scope of this disclosure.
[0037] Furthermore, although each operation can be described as a sequential process, many operations can be executed in parallel or simultaneously. Additionally, the order of operations can be rearranged. A process may have additional steps. Moreover, examples of methods can be implemented using hardware, software, firmware, middleware, code, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware, or code, the program code or code segments used to perform the necessary tasks can be stored in a non-transitory computer-readable medium such as a storage medium and executed by a processor.
[0038] In summary, the above detailed description is intended to be exemplary rather than restrictive, and it should be understood that the claims (including all equivalents) are intended to define the spirit and scope of this invention. These embodiments should be understood as illustrative only and not as limiting the scope of protection of this invention. After reading the description of this invention, those skilled in the art can make various alterations or modifications to it, and these equivalent changes and modifications also fall within the scope defined by the claims of this invention.
Claims
1. A linear drive module, characterized in that, include A base (10) is provided with a fixing screw (11); The drive unit (20) moves along the length direction of the fixed lead screw (11). The drive unit (20) includes a driver (21), a transmission member (22), and a platform (23). The transmission member (22) is connected to the driver (21) via a belt (30). The transmission member (22) is mounted on the fixed lead screw (11) and meshes with the fixed lead screw (11). When the transmission member (22) rotates, the transmission member (22) moves along the length direction of the fixed lead screw (11). The platform (23) is connected to the transmission member (22) via a connector (40) to follow the movement of the transmission member (22).
2. A linear drive module according to claim 1, characterized in that, The base (10) is a rectangular structure, and the fixing screw (11) is fixedly installed along the length of the base (10).
3. A linear drive module according to claim 1, characterized in that, The base (10) is provided with a guide rail (50), and the platform (23) is connected to the guide rail (50) through a slider (60) to guide the movement of the platform (23).
4. A linear drive module according to claim 1, characterized in that, The driver (21) is a motor, and the driver (21) is connected to the platform (23) via a side mounting block (70) to follow the movement of the platform (23).
5. A linear drive module according to claim 1, characterized in that, The transmission component (22) is a nut, and the transmission component (22) is threadedly engaged with the fixed lead screw (11). When the transmission component (22) rotates, the transmission component (22) moves along the length direction of the fixed lead screw (11).
6. A linear drive module according to claim 1, characterized in that, A circular hollow protrusion (231) is provided at the center of the platform (23), and the circular hollow protrusion (231) is coaxially arranged with the fixing screw (11).
7. A linear drive module according to claim 6, characterized in that, The end of the circular hollow protrusion (231) is connected to the transmission component (22) via the connector (40).
8. A linear drive module according to claim 1, characterized in that, A cover plate (80) is provided on the base (10) to cover the fixing screw (11).