A linear slide module driven by a lead screw

Abstract

The utility model relates to linear slide module technical field, especially a kind of linear slide module of screw rod drive. Including base, base two ends are integrally connected with fixed frame and fixed plate respectively, fixedly installed with drive motor in fixed frame, the output of drive motor is equipped with the screw rod that is passed through the side wall of fixed frame and is rotatably connected with fixed plate, screw rod is screw-connected with the sliding platform that is slidably connected with base, and sliding platform is compatible with base.The utility model provides a kind of linear slide module of screw rod drive, provides optimization guiding and sliding cooperation structure, fundamentally enhances the motion stability and anti-bias load capacity of sliding platform.

Description

Technical Field

[0001] This utility model relates to the field of linear slide module technology, and in particular to a linear slide module with screw drive. Background Technology

[0002] Linear slide modules are key transmission components in automated equipment, precision instruments, and industrial production lines. Their core function is to achieve high-precision linear reciprocating motion of loads along a predetermined trajectory. Screw drives, with their high transmission efficiency, precise positioning, and strong load-bearing capacity, are one of the most commonly used drive methods for these modules. A typical screw-driven linear slide module usually includes a base, a drive motor, a screw, and a threaded sliding table (or slider). The motor drives the screw to rotate, causing the sliding table to move along the screw axis on the base, thus completing the precise linear displacement task.

[0003] However, existing linear slide modules with screw drives still face challenges in terms of sliding stability and guiding accuracy under long-term operation or high-load conditions. An imperfect design of the mating structure between the slide and the base can easily lead to wobbling, misalignment, or jamming during movement, affecting positioning accuracy and accelerating wear on the sliding pairs, thus shortening the module's lifespan. Especially when the slide needs to bear asymmetrical loads or undergo frequent starts and stops or high-speed operation, effectively constraining the slide's degrees of freedom (particularly those perpendicular to the direction of movement), reducing sliding friction resistance, and ensuring smooth, stable, and wobble-free operation throughout its entire stroke range becomes a key challenge in improving the overall performance and reliability of the module. Utility Model Content

[0004] This invention provides a linear slide module with screw drive, offering an optimized guiding and sliding fit structure that fundamentally enhances the motion stability and anti-eccentric load capacity of the slide.

[0005] The technical solution adopted by this utility model is as follows: a linear slide module with screw drive, including a base, a fixed frame and a fixed plate are integrally connected to both ends of the base respectively, a drive motor is fixedly installed in the fixed frame, the output end of the drive motor is provided with a screw that passes through the side wall of the fixed frame and is rotatably connected to the fixed plate, and a slide table that is slidably connected to the base is threaded on the screw and is adapted to the base.

[0006] As a further improvement of this utility model, the bottom wall of the base is provided with a number of evenly distributed base fixing holes.

[0007] As a further improvement of this utility model, the end of the lead screw away from the drive motor is rotatably connected to the fixed plate through a bearing.

[0008] As a further improvement of this utility model, the sliding table has a T-shaped cross-section and both ends of the upper part of the sliding table extend to the outside of the base.

[0009] As a further improvement of this utility model, the bottom of the sliding platform is integrally connected with two parallel first protrusions and the two first protrusions are symmetrically arranged about the sliding platform. The bottom wall of the base is provided with a sliding groove for the first protrusions to slide, and the sliding groove is adapted to the first protrusions.

[0010] As a further improvement of this utility model, guide rollers are rotatably connected to the bottom of both ends of the sliding platform, and second protrusions adapted to the guide rollers are integrally connected to both sides of the base.

[0011] As a further improvement of this utility model, the top of the sliding table is provided with multiple mounting holes.

[0012] The beneficial effects of this utility model are as follows: This utility model achieves precise constraint of the three-dimensional degrees of freedom of the sliding table during movement by means of the first protrusion symmetrically arranged at the bottom of the sliding table and the embedded cooperation of the sliding groove of the base, as well as the rolling limiting structure of the guide rollers on both sides of the sliding table and the second protrusion of the base. This significantly improves the anti-eccentric load capacity and operation stability, effectively suppresses shaking, offset and jamming. At the same time, the rolling friction is replaced by the sliding friction to reduce wear and ensure the long-term high-precision and low-loss reliable operation of the module. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a linear slide module with screw drive according to this utility model; Figure 2 This utility model relates to a linear slide module with a lead screw drive. Figure 1 Another perspective illustration; Figure 3 This is a partial sectional view of a linear slide module with screw drive according to this utility model.

[0014] As shown in the figure: 1. Base; 2. Fixing frame; 3. Fixing plate; 4. Drive motor; 5. Lead screw; 6. Sliding table; 7. Base fixing hole; 8. Bearing; 9. First protrusion; 10. Sliding groove; 11. Guide roller; 12. Second protrusion; 13. Mounting hole. Detailed Implementation

[0015] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0016] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0017] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0018] This utility model provides the following: Figure 1-3 The linear slide module with screw drive shown includes a base 1. A fixed frame 2 and a fixed plate 3 are integrally connected to both ends of the base 1. A drive motor 4 is fixedly installed inside the fixed frame 2. The output end of the drive motor 4 is provided with a screw 5 that passes through the side wall of the fixed frame 2 and is rotatably connected to the fixed plate 3. A slide table 6 that is slidably connected to the base 1 is threaded on the screw 5 and is adapted to the base 1.

[0019] like Figure 3 As shown, the base 1 of this invention has several evenly distributed base fixing holes 7 on its bottom wall. The base fixing holes 7 are mainly used to securely install the entire module onto the required equipment or workbench. By using appropriate bolts to pass through the base fixing holes and screw them into the corresponding screw holes on the mounting surface, it can be ensured that the module can be firmly fixed, avoiding displacement or shaking during operation.

[0020] like Figure 1 As shown, in this invention, the end of the lead screw 5 furthest from the drive motor 4 is rotatably connected to the fixed plate 3 via a bearing 8. This effectively reduces the frictional resistance of the lead screw 5 during rotation and improves transmission efficiency. The bearing 8 ensures the stability and accuracy of the lead screw during high-speed rotation, reduces heat and wear caused by friction, and thus extends the service life of the lead screw.

[0021] like Figure 1-3 As shown, the sliding table 6 in this utility model has a T-shaped cross-section, and both ends of the upper part of the sliding table 6 extend to the outside of the base 1. Two parallel first protrusions 9 are integrally connected to the bottom of the sliding table 6, and the two first protrusions 9 are symmetrically arranged about the sliding table 6. The bottom wall of the base 1 is provided with a sliding groove 10 for the first protrusions 9 to slide, and the sliding groove 10 is adapted to the first protrusions 9. Guide rollers 11 are rotatably connected to the bottom of both ends of the upper part of the sliding table 6. Second protrusions 12 adapted to the guide rollers 11 are integrally connected to both sides of the base 1, so that the sliding table has better stability and guidance during the movement.

[0022] When the drive motor 4 drives the lead screw 5 to rotate, the rotation of the lead screw 5 is converted into the linear motion of the sliding table 6. During this process, the first protrusion 9 slides in the sliding groove 10, providing stable support and guidance for the sliding table 6 and preventing it from deviating in the horizontal direction. At the same time, the guide roller 11 rolls on the second protrusion 12, further enhancing the stability of the sliding table 6 and effectively constraining the degree of freedom of the sliding table 6. In addition, the cooperation between the guide roller 11 and the second protrusion 12 also has the effect of reducing frictional resistance. Compared with sliding friction, rolling friction has less resistance, which can reduce energy loss and improve the transmission efficiency of the module. Moreover, the wear generated by rolling friction is also relatively small, which helps to extend the service life of the module.

[0023] like Figure 1 and Figure 2 As shown, the top of the sliding table 6 in this utility model is provided with multiple mounting holes 13, which can conveniently install various load devices. Whether it is a small sensor, a clamp, or a larger working part, it can be firmly connected to the sliding table 6 through the mounting holes 13 to realize the linear reciprocating motion of the load device.

[0024] Working Principle: In practical implementation, the base is first installed on the corresponding equipment or workbench through the base fixing holes to ensure the module is securely installed. Next, the load device requiring linear motion is installed on the sliding table through the mounting holes on the top of the sliding table. The drive motor is turned on, causing the lead screw to rotate. Since the lead screw is threadedly connected to the sliding table, the rotational motion of the lead screw is converted into the linear motion of the sliding table. During the movement of the sliding table, the first protrusion at the bottom of the sliding table slides within the sliding groove of the base, providing stable horizontal support and guidance for the sliding table and preventing horizontal deviation. Simultaneously, the guide rollers at both ends of the sliding table roll on the second protrusions on both sides of the base, further enhancing the stability of the sliding table, constraining its degrees of freedom, and reducing frictional resistance during movement. Thus, driven by the lead screw, the sliding table can smoothly and steadily move linearly along the lead screw axis on the base, thereby driving the load device installed on the sliding table to complete precise linear reciprocating motion. Throughout the process, the optimized guiding and sliding fit structure effectively improved the module's resistance to off-center loads and operational stability, reduced wear, and ensured the module's long-term reliable operation with high precision and low loss.

[0025] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A linear slide module with screw drive, comprising a base (1), characterized in that: The base (1) is integrally connected to a fixed frame (2) and a fixed plate (3) at both ends. A drive motor (4) is fixedly installed inside the fixed frame (2). The output end of the drive motor (4) is provided with a lead screw (5) that passes through the side wall of the fixed frame (2) and is rotatably connected to the fixed plate (3). A sliding table (6) that is slidably connected to the base (1) is threaded on the lead screw (5), and the sliding table (6) is adapted to the base (1). The sliding platform (6) has a T-shaped cross section and both ends of the upper part of the sliding platform (6) extend to the outside of the base (1). The bottom of the sliding platform (6) is integrally connected with two parallel first protrusions (9) and the two first protrusions (9) are symmetrically arranged about the sliding platform (6). The bottom wall of the base (1) is provided with a sliding groove (10) for the first protrusions (9) to slide, and the sliding groove (10) is adapted to the first protrusions (9). The bottom of both ends of the sliding platform (6) is rotatably connected with guide rollers (11). The two sides of the base (1) are integrally connected with second protrusions (12) adapted to the guide rollers (11).

2. The linear slide module with screw drive according to claim 1, characterized in that: The base (1) has several evenly distributed base fixing holes (7) on its bottom wall.

3. The linear slide module with screw drive according to claim 1, characterized in that: The end of the lead screw (5) away from the drive motor (4) is rotatably connected to the fixed plate (3) via a bearing (8).

4. A linear slide module with screw drive according to claim 1, characterized in that: The top of the sliding table (6) is provided with multiple mounting holes (13).

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