A small precise linear motion module

Abstract

The utility model relates to linear motion mechanism technical field especially is small -size precision linear motion module, including base, be provided with motor on the base, install drive wheel on the motor, be provided with linear guide on the base, slider installs on the linear guide, slider is connected with linear guide slidingly, has guaranteed the stability of linear operation, be provided with precision screw hole on the sliding plate, be provided with precision screw on the screw rod, screw rod and sliding plate are connected through precision screw thread and constitute screw drive mechanism, have realized micron level high accuracy's motion control through this precision screw thread, the both ends of screw rod are provided with first bearing and second bearing, the right side of screw rod is provided with driven wheel, driven wheel is connected together through synchronous belt and driving wheel and constitutes transmission mechanism, the bottom of sliding plate is provided with sensor sensing sheet, the below of sensor sensing sheet is provided with circuit board, sensor sensing sheet and circuit board constitute sensing mechanism together, the motion limit position of sensing sliding plate.

Description

Technical Field

[0001] This utility model relates to the field of linear motion mechanism technology, and in particular to a small precision linear motion module. Background Technology

[0002] With the advancement of technology, linear motion modules have been widely used in precision machining and precision equipment manufacturing due to their high precision, stability, and reliability. Traditional linear motion modules primarily rely on large-diameter lead screws or synchronous belts for long-stroke linear motion. While this design is mature and reliable, it has limitations in applications requiring small strokes and micron-level precision. Especially in applications demanding micron-level high-precision positioning and short strokes, the transmission method cannot meet the requirements, making it difficult to satisfy the manufacturing needs of micron-level precision dispensing equipment and precision machining equipment. Utility Model Content

[0003] The present invention aims to at least solve the technical problems existing in the prior art. To this end, the present invention proposes a small precision linear motion module with a compact structure, high precision, and good stability, achieving high-precision and highly stable linear motion while maintaining the smoothness and reliability of the motion.

[0004] A small precision linear motion module according to some embodiments of the present invention includes a base, a motor mounted on the base, a drive wheel mounted on the motor, a linear guide rail mounted on the base, a slider mounted on the linear guide rail, a sliding plate mounted on the slider, a precision threaded hole on the sliding plate, a screw mounted on the sliding plate, a precision threaded hole on the screw, a first bearing and a second bearing mounted at both ends of the screw, a driven wheel mounted on the right side of the screw, the driven wheel being connected to the drive wheel via a synchronous belt, a sensor plate mounted at the bottom of the sliding plate, a circuit board mounted below the sensor plate, a side plate mounted on the left side of the base, an end cap mounted on the side plate, a wire protection sleeve mounted on the side plate, and an outer cover mounted on the right side of the base.

[0005] A small precision linear motion module according to some embodiments of the present invention has at least the following beneficial effects: This invention features a motor fixed to a base, with a drive wheel mounted on the motor. A linear guide rail is provided on the base, and a slider is mounted on the linear guide rail, slidably connected to it. The slider is also fixed to a sliding plate. The linear movement of the linear guide rail and the slider ensures the stability of the linear operation. The sliding plate has a precision threaded hole, and the screw has a precision thread. The screw and the sliding plate are connected by the precision thread to form a threaded drive mechanism, which achieves micron-level high-precision motion control.

[0006] According to some embodiments of the present invention, a small precision linear motion module is provided, wherein the motor is fixed on the base and the drive wheel is fixed on the right side of the motor's output shaft.

[0007] According to some embodiments of the present invention, a small precision linear motion module is provided, wherein the linear guide rail is fixed on the base, the slider is mounted on the linear guide rail, the slider is slidably connected to the linear guide rail, and the sliding plate is fixed on the slider.

[0008] According to some embodiments of the present invention, a small precision linear motion module is provided in which the screw and the sliding plate are connected by their respective precision threads.

[0009] According to some embodiments of the present invention, a small precision linear motion module is provided with a first bearing and a second bearing at both ends of the screw. The first bearing is mounted on the side plate, and an end cap is provided on the left side of the first bearing. The end cap is fixed on the side plate, and the side plate is connected to the base. The second bearing is mounted on the base.

[0010] According to some embodiments of the present invention, a small precision linear motion module is provided with a driven wheel on the right side of the screw, and the driven wheel is connected to the driving wheel through the synchronous belt.

[0011] According to some embodiments of the present invention, a small precision linear motion module is provided at the bottom of the sliding plate, the sensor sensing sheet is fixed on the sliding plate, and a circuit board is provided below the sensor sensing sheet, the circuit board is fixed on the base.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 1 .

[0014] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 1 AA cross-section view.

[0015] Figure 3 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 1 BB cross-section.

[0016] Reference numerals in the attached diagram: 1. Base, 2. Motor, 3. Drive wheel, 4. Synchronous belt, 5. Side plate, 6. Screw, 7. Driven wheel, 8. First bearing, 9. Linear guide rail, 10. Slider, 11. End cover, 12. Cable sheath, 13. Outer cover, 14. Second bearing, 15. Sliding plate, 16. Circuit board, 17. Sensor sensing plate. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0018] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, left, right, front, and back, are based on the directional or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0020] In the description of this utility model, unless otherwise expressly limited, terms such as setting, installing, and connecting should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0021] like Figures 1-3 As shown, this utility model embodiment provides a small precision linear motion module.

[0022] A small precision linear motion module includes a base 1, a motor 2 mounted on the base 1, a drive wheel 3 mounted on the motor 2, a linear guide rail 9 mounted on the base 1, a slider 10 mounted on the linear guide rail 9, a sliding plate 15 mounted on the slider 10, a precision threaded hole on the sliding plate 15, a screw 6 mounted on the sliding plate 15, a precision thread on the screw 6, a first bearing 8 and a second bearing 14 mounted at both ends of the screw 6, a driven wheel 7 mounted on the right side of the screw 6, the driven wheel 7 being connected to the drive wheel 3 via a synchronous belt 4, a sensor sensing element 17 mounted at the bottom of the sliding plate 15, a circuit board 16 mounted below the sensor sensing element 17, a side plate 5 mounted on the left side of the base 1, an end cap 11 mounted on the side plate 5, a wire protection sleeve 12 mounted on the side plate 5, and an outer cover 13 mounted on the right side of the base 1.

[0023] This invention features a motor 2 fixed to a base 1. A drive wheel 3 is mounted on the right side of the motor 2's output shaft. A linear guide rail 9 is mounted on the base 1, and a slider 10 is mounted on the linear guide rail 9, slidably connected to it. The slider 10 is also fixed to a sliding plate 15. The linear movement of the linear guide rail 9 and the slider 10 ensures the stability of the linear motion. The sliding plate 15 has a precision threaded hole, and the screw 6 has a precision thread. The screw 6 and the sliding plate 15 are connected by the precision thread to form a threaded drive mechanism, achieving micron-level high-precision motion control.

[0024] This embodiment describes a small precision linear motion module. The screw 6 has a first bearing 8 and a second bearing 14 at both ends. The first bearing 8 is mounted on the side plate 5, and an end cap 11 is located on the left side of the first bearing 8. The end cap 11 is fixed to the side plate 5, and the side plate 5 is connected to the base 1. The second bearing 14 is mounted on the base 1. Specifically, by setting the first bearing 8 and the second bearing 14, the stability of the system is increased, shaking is reduced, and positioning accuracy is further improved.

[0025] This embodiment describes a small precision linear motion module. The driven wheel 7 is located on the right side of the screw 6. The driven wheel 7 is connected to the driving wheel 3 via a synchronous belt 4 to form a transmission mechanism. Specifically, by using the synchronous belt 4 to drive the driven wheel 7, the cumulative parallelism error caused by parts processing can be reduced, thus enhancing the reliability of the system.

[0026] This embodiment describes a small precision linear motion module. A sensor plate 17 is mounted on the bottom of a sliding plate 15 and fixed to the sliding plate 15. A circuit board 16 is located below the sensor plate 17 and fixed to a base 1. The sensor plate 17 and the circuit board 16 together form a sensing mechanism to sense the extreme positions of the sliding plate 15. Specifically, the combined use of the sensor plate 17 and the circuit board 16 enables non-contact position detection, improving detection speed and response time. This internally embedded layout also saves system space.

[0027] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A small precision linear motion module, comprising a base, characterized in that: A motor is mounted on the base, and a drive wheel is mounted on the motor. A linear guide rail is mounted on the base, and a slider is mounted on the linear guide rail. A sliding plate is mounted on the slider, and a precision threaded hole is provided on the sliding plate. A screw with precision threads is mounted on the sliding plate, and a first bearing and a second bearing are provided at both ends of the screw. A driven wheel is located on the right side of the screw, and the driven wheel is connected to the drive wheel via a synchronous belt. A sensor is located at the bottom of the sliding plate, and a circuit board is located below the sensor. A side plate is located on the left side of the base, and an end cap and a wire protector are provided on the side plate. An outer cover is located on the right side of the base.

2. The small precision linear motion module according to claim 1, characterized in that: The motor is fixed to the base, and the drive wheel is fixed to the right side of the motor's output shaft.

3. The small precision linear motion module according to claim 1, characterized in that: The linear guide rail is fixed on the base, the slider is mounted on the linear guide rail, the slider is slidably connected to the linear guide rail, and the sliding plate is fixed on the slider.

4. A small precision linear motion module according to claim 1, characterized in that: The screw and the sliding plate are connected by their respective precision threads.

5. A small precision linear motion module according to claim 1, characterized in that: The screw is provided with a first bearing and a second bearing at both ends. The first bearing is mounted on the side plate. The end cap is provided on the left side of the first bearing and is fixed on the side plate. The side plate is connected to the base. The second bearing is mounted on the base.

6. A small precision linear motion module according to claim 1, characterized in that: The driven wheel is located on the right side of the screw, and the driven wheel is connected to the driving wheel via the synchronous belt.

7. A small precision linear motion module according to claim 1, characterized in that: The sensor plate is located at the bottom of the sliding plate and is fixed to the sliding plate. The circuit board is located below the sensor plate and is fixed to the base.

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