Precision positioning screw rod

Abstract

The utility model relates to the technical field of screw rod, concretely is a kind of precision positioning screw rod;Including workbench, drive assembly, first transmission component, second transmission component and positioning assembly, drive assembly is located in work station, second transmission component is located in first transmission component, one end of second transmission component is connected drive assembly, positioning assembly is used for the positioning when second transmission component is driven on workbench;Through drive assembly setting in work station, power source is provided for the whole screw rod transmission;First transmission component is located in workbench, lays foundation for subsequent transmission;Second transmission component is connected drive assembly and is set on first transmission component, ensure that power is effectively transmitted, realize the transmission function of screw rod, so that second transmission component can be accurately positioned when driving first transmission component to drive;And positioning assembly is provided with multiple and is abutted with locating piece, flexibly adjusts to different positions, increases the flexibility and diversity of screw rod positioning, and the practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of lead screw technology, specifically a precision positioning lead screw. Background Technology

[0002] Lead screws are the most commonly used transmission components in machine tools and precision machinery. Their main function is to convert rotary motion into linear motion or torque into axial repetitive force. They also feature high precision, reversibility, and high efficiency. They have very low frictional resistance and are therefore widely used in mechanical equipment.

[0003] In the transmission process, existing lead screws sometimes need to limit their transmission position, but the existing lead screws cannot be positioned by their own structure. This leads to the need for external positioning structures during lead screw transmission, which is not conducive to the development of lead screws. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a precision positioning lead screw, which solves the problem that existing lead screws sometimes need to limit their transmission position during transmission, but the existing lead screws cannot be positioned by their own structure. This leads to the need for an external positioning structure during lead screw transmission, which is not conducive to the development of lead screws.

[0005] The technical solution adopted by this utility model is: a precision positioning screw, including a worktable, a drive assembly, a first transmission assembly, a second transmission assembly, and a positioning assembly. The drive assembly is disposed on the worktable, the first transmission assembly is disposed on the worktable, the second transmission assembly is disposed on the first transmission assembly, one end of the second transmission assembly is connected to the drive assembly, and the positioning assembly is disposed on both sides of the worktable near the second transmission assembly. The positioning assembly is used to position the second transmission assembly when it is moving on the worktable.

[0006] The second transmission component is provided with a positioning plate, and multiple sets of positioning components are provided. The multiple sets of positioning components are arranged sequentially on one side of the worktable. The positioning plate abuts against the positioning components to perform multi-level positioning of the second transmission component on the worktable.

[0007] A further improvement to the above solution is that transmission baffles are provided on both sides of the workbench, and transmission grooves are provided inside the transmission baffles. The first transmission component is movably disposed in the transmission grooves and is limited by the transmission baffles.

[0008] A further improvement to the above solution is that the drive assembly includes a drive motor, a drive plate, a coupling, a support plate, a drive base, and a stabilizing frame; the drive motor is located at one end of the worktable, the drive motor is located on the drive plate, the coupling is located on the drive plate, the support plate is used to support the second transmission assembly, the drive base is used to drive the second transmission assembly to transmit power, thereby driving the first transmission assembly to transmit power on the worktable, and the stabilizing frame is used to cooperate with the support plate to securely install the second transmission assembly.

[0009] A further improvement to the above solution is that a drive rod is provided at one end of the drive motor, a drive groove is provided on the drive plate, and the drive rod is movably disposed in the drive groove.

[0010] A further improvement to the above scheme is that the coupling is provided with a connecting groove, and an adjusting screw hole is provided on the side of the coupling near the connecting groove, and an adjusting nut is provided in the adjusting screw hole; one end of the second transmission component is provided in the connecting groove, and the second transmission component in the connecting groove is tightened by the cooperation of the adjusting nut and the adjusting thread.

[0011] A further improvement to the above solution is that a support groove is provided on the support plate, a rotating shaft is provided in the support groove, and one end of the second transmission component passes through the support groove and moves along the rotating shaft.

[0012] A further improvement to the above solution is that an assembly ring is provided at one end of the drive seat facing the support plate, and an assembly nut is provided on the assembly ring. The second transmission component is disposed in the assembly ring and fixed by the assembly nut. The drive seat is provided with a mounting groove facing the first transmission component.

[0013] A further improvement to the above solution is that the first transmission component includes a slide rod and a slider, the slider is disposed in the mounting groove, the slider is movably disposed on the slide rod, and the volume of the slider is the same as the size of the mounting groove.

[0014] A further improvement to the above solution is that the second transmission assembly includes a transmission screw and a screw sleeve, one end of the screw sleeve is disposed on the transmission screw, the transmission screw is provided with a transmission thread near the stabilizing frame, and one end of the transmission screw is disposed on the stabilizing frame through the transmission thread.

[0015] A further improvement to the above solution is that the positioning component includes a positioning plate, positioning blocks, and a signal sensing element. The positioning plate is installed on one side of the workbench. Multiple positioning blocks are provided, and the multiple positioning blocks surround the positioning plate to form a positioning groove. The side of the signal sensing element closest to the positioning groove is disposed on the positioning block. One end of the positioning piece cooperates with the positioning groove and performs positioning transmission through the signal sensing element.

[0016] The beneficial effects of this utility model are:

[0017] Compared to existing lead screws, this invention uses a drive assembly mounted on the worktable to provide power for the entire lead screw transmission. A first transmission assembly is located on the worktable, laying the foundation for subsequent transmission. A second transmission assembly connects to the drive assembly and is mounted on the first transmission assembly, ensuring effective power transmission and realizing the lead screw's transmission function. Positioning components are located near the second transmission assembly on both sides of the worktable, with the second transmission assembly mounted on the first transmission assembly, ensuring precise positioning when driving the first transmission assembly. Multiple positioning components are provided and abut against positioning plates, allowing for flexible adjustment to multiple different positions. This greatly increases the flexibility and versatility of lead screw positioning, meeting diverse positioning accuracy requirements under different working scenarios and process requirements, effectively improving production quality and efficiency, and demonstrating strong practicality. Attached Figure Description

[0018] Figure 1 This is a perspective view of the precision positioning lead screw of this utility model;

[0019] Figure 2 This is a right view of the precision positioning lead screw of this utility model;

[0020] Figure 3 for Figure 2 Sectional view at point AA;

[0021] Figure 4 Exploded view of the precision positioning lead screw of this utility model.

[0022] Explanation of reference numerals in the attached drawings: Workbench 10, Transmission baffle 11, Transmission groove 12;

[0023] Drive assembly 20, drive motor 21, drive rod 211, drive plate 22, drive groove 221, coupling 23, connecting groove 231, adjusting screw hole 232, adjusting nut 233, support plate 24, support groove 241, rotating shaft 242, drive seat 25, assembly ring 251, assembly nut 252, mounting groove 253, and stabilizing frame 26;

[0024] First transmission assembly 30, slide bar 31, slider 32;

[0025] Second transmission assembly 40, positioning plate 41, transmission screw 42, screw sleeve 43, transmission thread 44; positioning assembly 50, positioning plate 51, positioning block 52, signal sensing element 53, positioning groove 54. Detailed Implementation

[0026] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0027] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0029] like Figure 1-4As shown in the embodiment of this utility model, a precision positioning lead screw includes a worktable 10, a drive assembly 20, a first transmission assembly 30, a second transmission assembly 40, and a positioning assembly 50. The drive assembly 20 is disposed on the worktable, the first transmission assembly 30 is disposed on the worktable 10, and the second transmission assembly 40 is disposed on the first transmission assembly 30. One end of the second transmission assembly 40 is connected to the drive assembly 20. The positioning assembly 50 is disposed on both sides of the worktable 10 near the second transmission assembly 40. The positioning assembly 50 is used to position the second transmission assembly 40 when it is driven on the worktable 10. The second transmission assembly 40 is provided with a positioning piece 41. Multiple sets of positioning assemblies 50 are arranged sequentially on one side of the worktable 10. The positioning piece 41 abuts against the positioning assembly 50 to perform multi-level positioning of the second transmission assembly 40 on the worktable 10. In this embodiment, the drive assembly 20 is set on the workbench to provide power for the entire lead screw drive; the first transmission assembly 30 is set on the workbench 10 to lay the foundation for subsequent transmission; the second transmission assembly 40 is connected to the drive assembly 20 and set on the first transmission assembly 30 to ensure effective power transmission and realize the transmission function of the lead screw; and the positioning assembly 50 is set close to the second transmission assembly 40 on both sides of the workbench 10, and the second transmission assembly 40 is set on the first transmission assembly 30 so that it can be accurately positioned when driving the first transmission assembly 30 to perform transmission; and there are multiple positioning assemblies 50 that abut against the positioning piece 41, which can be flexibly adjusted to multiple different positions, greatly increasing the flexibility and diversity of lead screw positioning, meeting the diverse needs for positioning accuracy under different working scenarios and process requirements, effectively improving the quality and efficiency of production and processing, and is highly practical.

[0030] like Figures 1 to 3 As shown, transmission baffles 11 are provided on both sides of the workbench 10, and transmission grooves 12 are provided within the transmission baffles 11. The first transmission component 30 is movably disposed within the transmission grooves 12 and is limited in transmission by the transmission baffles 11. In this embodiment, the transmission baffles 11 limit the first transmission component 30, ensuring that it moves precisely along a predetermined trajectory within the transmission grooves 12, avoiding deviation or shaking during operation, and improving the stability and reliability of the transmission.

[0031] like Figure 4As shown, the drive assembly 20 includes a drive motor 21, a drive plate 22, a coupling 23, a support plate 24, a drive base 25, and a stabilizing frame 26. The drive motor 21 is located at one end of the worktable 10 and is mounted on the drive plate 22. The coupling 23 is also mounted on the drive plate 22. The support plate 24 supports the second transmission assembly 40. The drive base 25 drives the second transmission assembly 40 to transmit power, thereby driving the first transmission assembly 30 to transmit power on the worktable 10. The stabilizing frame 26 cooperates with the support plate 24 to securely install the second transmission assembly 40. In this embodiment, the drive base 25 drives the second transmission assembly 40, which in turn drives the first transmission assembly 30 to transmit power on the worktable 10, achieving efficient power transmission and coordinated operation. The stabilizing frame 26 cooperates with the support plate 24 to securely install the second transmission assembly 40, enhancing the overall structural rigidity, reducing component displacement and deformation during operation, and ultimately improving the positioning accuracy and operational reliability of the precision positioning screw, ensuring the precision and stability of equipment processing and other operations.

[0032] A drive rod 211 is provided at one end of the drive motor 21, and a drive groove 221 is provided on the drive plate 22. The drive rod 211 is movably disposed within the drive groove 221. In this embodiment, by movably disposing the drive rod 211 within the drive groove 221, an effective connection and power transmission between the drive motor 21 and the drive plate 22 are achieved. When the drive motor 21 is running, the drive rod 211 can move flexibly within the drive groove 221, accurately transmitting the rotational power of the motor to the drive plate 22.

[0033] The coupling 23 has a connecting groove 231, and an adjusting screw hole 232 is provided on the side of the coupling 233 near the connecting groove 231. An adjusting nut 233 is provided in the adjusting screw hole 232. One end of the second transmission component 40 is disposed in the transmission groove 12, and the second transmission component 40 in the connecting groove 231 is tightened by the cooperation of the adjusting nut 233 and the adjusting thread. In this embodiment, the connecting groove 231 provides an installation position for the second transmission component 40 to realize power transmission. The installation state of the second transmission component 40 in the connecting groove 231 can be precisely adjusted by the cooperation of the adjusting screw hole 232 and the adjusting nut 233. The adjusting nut 233 can be flexibly tightened according to different working conditions and accuracy requirements to achieve the best fit between the second transmission component 40 and the connecting groove 231, thus achieving precise positioning.

[0034] A support groove 241 is provided on the support plate 24, and a rotating shaft 242 is provided within the support groove 241. One end of the second transmission component 40 passes through the support groove 241 and moves along the rotating shaft 242. In this embodiment, by providing a support groove 241 and housing a rotating shaft 242 on the support plate 24, and by having one end of the second transmission component 40 pass through the support groove 241 and move along the rotating shaft 242, a precise and stable moving track is provided for the second transmission component 40, ensuring its straightness and accuracy of operation, which is beneficial to improving the positioning accuracy of the entire precision positioning screw system; it also enhances the stability of the transmission component, as the rotating shaft 242 can disperse the stress generated during component operation, reduce vibration and noise, and extend the service life of the equipment.

[0035] An assembly ring 251 is provided at one end of the drive seat 25 facing the support plate 24. An assembly nut 252 is provided on the assembly ring 251. The second transmission component 40 is disposed within the assembly ring 251 and fixed by the assembly nut 252. The drive seat 25 is provided with a mounting groove 253 facing the first transmission component 30. In this embodiment, the assembly ring 251 provides a precise installation position for the second transmission component 40, ensuring its installation stability and accuracy. The assembly nut 252 firmly fixes the second transmission component 40 within the assembly ring 251, preventing it from loosening or shifting during the operation of the lead screw, thus ensuring the reliability of the transmission.

[0036] The first transmission component 30 includes a slide rod 31 and a slider 32. The slider 32 is disposed within a mounting groove 253 and movably mounted on the slide rod 31. The size of the slider 32 is the same as the size of the mounting groove 253. In this embodiment, by disposing of the slider 32 within the mounting groove 253 and moving it along the slide rod 31, the slider 32 can slide precisely in a straight line along the slide rod 31, providing stable and precise guidance for the transmission of the equipment and ensuring the accuracy of the transmission path. Furthermore, by ensuring that the slider 32's size is the same as the size of the mounting groove 253, the movement space of the slider 32 within the mounting groove 253 is effectively limited, preventing it from wobbling or shifting, thus enhancing the stability of the transmission. Additionally, this close fit helps improve transmission efficiency, reduces energy loss due to gaps or other issues, and improves the overall operating performance and work quality of the equipment.

[0037] The second transmission assembly 40 includes a transmission screw 42 and a screw sleeve 43. One end of the screw sleeve 43 is mounted on the transmission screw 42. The transmission screw 42 has a transmission thread 44 near the stabilizing frame 26, and one end of the transmission screw 42 is mounted on the stabilizing frame 26 through the transmission thread 44. In this embodiment, the transmission screw 42 and the screw sleeve 43 cooperate to convert rotational motion into linear motion, achieving precise position adjustment. Furthermore, the screw sleeve 43, with one end mounted on the transmission screw 42, allows for flexible transmission and ensures accurate relative positioning. The transmission thread 44 on the transmission screw 42 near the stabilizing frame 26 enhances the stability of the connection, ensuring structural stability during operation. Additionally, the threaded engagement allows for precise control of the screw's advance and retreat, thereby achieving precise positioning of the components connected to the screw and meeting the equipment's requirements for precise position control in high-precision working environments.

[0038] The positioning component 50 includes a positioning plate 51, positioning blocks 52, and a signal sensing element 53. The positioning plate 51 is mounted on one side of the workbench 10. Multiple positioning blocks 52 are arranged around the positioning plate 51 to form a positioning groove 54. The signal sensing element 53 is positioned on the positioning block 52 near the positioning groove 54. One end of the positioning piece 41 engages with the positioning groove 54, and positioning data is transmitted via the signal sensing element 53. In this embodiment, the positioning groove 54 formed by multiple positioning blocks 52 surrounding the positioning plate 51 precisely defines the position of one end of the positioning piece 41, achieving high-precision positioning and ensuring the accuracy of installation or operation of related components. The signal sensing element 53, positioned near the positioning groove 54 on the positioning block 52, can sense the positioning status in real time. Through the engagement of the positioning piece 41 and the positioning groove 54, the positioning information is accurately transmitted, allowing the system to adjust promptly. This effectively improves the positioning accuracy and stability of the equipment.

[0039] A precision positioning lead screw includes a worktable 10, a drive assembly 20, a first transmission assembly 30, a second transmission assembly 40, and a positioning assembly 50. The drive assembly 20 is mounted on the worktable 10, the first transmission assembly 30 is mounted on the worktable 10, and the second transmission assembly 40 is mounted on the first transmission assembly 30. One end of the second transmission assembly 40 is connected to the drive assembly 20. The positioning assembly 50 is located near the second transmission assembly 40 on both sides of the worktable 10. The positioning assembly 50 is used to position the second transmission assembly 40 when it is driven on the worktable 10. The second transmission assembly 40 is provided with a positioning piece 41. Multiple sets of positioning assemblies 50 are arranged sequentially on one side of the worktable 10. The positioning piece 41 abuts against the positioning assembly 50 to perform multi-level positioning of the second transmission assembly 40 on the worktable 10. In this embodiment, the drive assembly 20 is set on the workbench to provide power for the entire lead screw drive; the first transmission assembly 30 is set on the workbench 10 to lay the foundation for subsequent transmission; the second transmission assembly 40 is connected to the drive assembly 20 and set on the first transmission assembly 30 to ensure effective power transmission and realize the transmission function of the lead screw; and the positioning assembly 50 is set close to the second transmission assembly 40 on both sides of the workbench 10, and the second transmission assembly 40 is set on the first transmission assembly 30 so that it can be accurately positioned when driving the first transmission assembly 30 to perform transmission; and there are multiple positioning assemblies 50 that abut against the positioning piece 41, which can be flexibly adjusted to multiple different positions, greatly increasing the flexibility and diversity of lead screw positioning, meeting the diverse needs for positioning accuracy under different working scenarios and process requirements, effectively improving the quality and efficiency of production and processing, and is highly practical.

[0040] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A precision positioning lead screw, characterized in that: The device includes a worktable, a drive assembly, a first transmission assembly, a second transmission assembly, and a positioning assembly. The drive assembly is mounted on the worktable, the first transmission assembly is mounted on the worktable, the second transmission assembly is mounted on the first transmission assembly, one end of the second transmission assembly is connected to the drive assembly, and the positioning assembly is located on both sides of the worktable near the second transmission assembly. The positioning assembly is used to position the second transmission assembly when it is moving on the worktable. The second transmission component is provided with a positioning plate, and multiple sets of positioning components are provided. The multiple sets of positioning components are arranged sequentially on one side of the worktable. The positioning plate abuts against the positioning components to perform multi-level positioning of the second transmission component on the worktable.

2. The precision positioning lead screw according to claim 1, characterized in that: The workbench is provided with transmission baffles on both sides, and transmission grooves are provided in the transmission baffles. The first transmission component is movably disposed in the transmission grooves and is limited by the transmission baffles.

3. The precision positioning lead screw according to claim 1, characterized in that: The drive assembly includes a drive motor, a drive plate, a coupling, a support plate, a drive base, and a stabilizing frame. The drive motor is located at one end of the worktable, the drive plate is mounted on the drive motor, the coupling is mounted on the drive plate, the support plate is used to support the second transmission assembly, the drive base is used to drive the second transmission assembly to transmit power, thereby driving the first transmission assembly to transmit power on the worktable, and the stabilizing frame is used to cooperate with the support plate to securely install the second transmission assembly.

4. The precision positioning lead screw according to claim 3, characterized in that: One end of the drive motor is provided with a drive rod, and the drive plate is provided with a drive groove, and the drive rod is movably disposed in the drive groove.

5. The precision positioning lead screw according to claim 4, characterized in that: The coupling has a connecting groove, and an adjusting screw hole is provided on the side of the coupling near the connecting groove. An adjusting nut is provided in the adjusting screw hole. One end of the second transmission component is provided in the connecting groove, and the second transmission component in the connecting groove is tightened by the cooperation of the adjusting nut and the adjusting thread.

6. The precision positioning lead screw according to claim 5, characterized in that: The support plate is provided with a support groove, and a rotating shaft is provided in the support groove. One end of the second transmission component passes through the support groove and moves along the rotating shaft.

7. The precision positioning lead screw according to claim 6, characterized in that: The drive seat has an assembly ring at one end facing the support plate, and an assembly nut is provided on the assembly ring. The second transmission component is disposed in the assembly ring and fixed by the assembly nut. The drive seat has a mounting groove facing the first transmission component.

8. The precision positioning lead screw according to claim 7, characterized in that: The first transmission component includes a slide rod and a slider. The slider is disposed in the mounting groove and is movably mounted on the slide rod. The size of the slider is the same as the size of the mounting groove.

9. The precision positioning lead screw according to claim 3, characterized in that: The second transmission assembly includes a transmission lead screw and a lead screw sleeve. One end of the lead screw sleeve is disposed on the transmission lead screw. The transmission lead screw is provided with a transmission thread near the stabilizing frame. One end of the transmission lead screw is disposed on the stabilizing frame through the transmission thread.

10. The precision positioning lead screw according to claim 1, characterized in that: The positioning assembly includes a positioning plate, positioning blocks, and a signal sensing element. The positioning plate is installed on one side of the workbench. Multiple positioning blocks are provided, and the multiple positioning blocks surround the positioning plate to form a positioning groove. The side of the signal sensing element closest to the positioning groove is disposed on the positioning block. One end of the positioning piece cooperates with the positioning groove and performs positioning transmission through the signal sensing element.

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