Stepping motor with lead screw assembly not easy to shake

Abstract

The utility model discloses a stepping motor with a lead screw assembly not easy to shake, and relates to the technical field of stepping motors, the stepping motor comprises a housing and a lead screw main body, the end face of the housing is provided with a first cavity, the first cavity is internally provided with a mounting cylinder, the interior of the mounting cylinder is in threaded connection with a threaded cylinder, and the threaded cylinder is internally provided with a screw rod. The screw rod comprises a screw rod body and a threaded cylinder, the threaded cylinder is provided with a limiting cylinder, the screw rod body is rotationally arranged in the limiting cylinder and comprises a threaded section, the circumferential surface of the threaded section is in threaded connection with a threaded ring, and the threaded ring is rotationally arranged in the first cavity. According to the stepping motor with the lead screw assembly not easy to shake provided by the utility model, the installation cylinder and the threaded cylinder in the first cavity are utilized, so that the effect of conveniently and rapidly disassembling and assembling the limiting cylinder installed on the end face of the shell is achieved, and the effect of conveniently and rapidly disassembling and assembling the limiting cylinder on the end face of the shell according to different types of lead screw main bodies is achieved. And the limiting cylinder can be quickly disassembled, assembled and replaced, so that the adaptability of the limiting cylinder is improved.

Description

Technical Field

[0001] This utility model relates to the field of stepper motor technology, specifically to a stepper motor with a lead screw assembly that is not easily shaken. Background Technology

[0002] The combination of a stepper motor and a lead screw assembly forms a linear lead screw stepper motor, a drive device that converts the rotational motion of a stepper motor into linear motion. This device seamlessly integrates the linear lead screw and stepper motor through a unique manufacturing process. In applications requiring precise linear motion, the linear lead screw stepper motor is widely used due to its efficient high-speed positioning, high reliability, and high-density digital linear motion servo system.

[0003] In existing stepper motors, the lead screw is prone to wobbling during operation. As the core of the transmission component, the lead screw's accuracy and stability directly determine the performance of the entire drive system. During stepper motor operation, lead screw wobbling not only leads to the accumulation of transmission errors but also increases system friction and wear, thereby reducing equipment lifespan and reliability. Furthermore, lead screw wobbling can also cause vibration and noise, adversely affecting the equipment's operating environment and operator comfort. Utility Model Content

[0004] The purpose of this invention is to provide a stepper motor with a lead screw assembly that is less prone to wobbling, thereby overcoming the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a stepper motor with a lead screw assembly that is not easily shaken, comprising a housing and a lead screw body, wherein a first cavity is provided on the end face of the housing, an installation cylinder is provided inside the first cavity, a threaded cylinder is threadedly connected inside the installation cylinder, a limit cylinder is provided on the threaded cylinder, and the lead screw body is rotatably disposed within the limit cylinder.

[0006] Furthermore, the lead screw body includes a threaded section, and a threaded ring is threadedly connected to the circumferential surface of the threaded section, the threaded ring being rotatably disposed within the first cavity.

[0007] Furthermore, the limiting cylinder is provided with a first support ring inside, and a first connecting section is rotatably provided inside the first support ring. The first connecting section is coaxially connected to the end face of the threaded section, and a lead screw head section is also coaxially connected to the end face of the first connecting section.

[0008] Furthermore, a screw is rotatably mounted on the limiting cylinder, and a slider is threadedly connected to the circumferential surface of the screw. The slider is fixedly mounted on the circumferential surface of the first support ring.

[0009] Furthermore, a groove is provided along the axial direction on the circumferential surface of the limiting cylinder, and the slider is slidably disposed in the groove.

[0010] Furthermore, a second cavity is provided at the other end of the housing, and a second support ring is rotatably arranged inside the second cavity. Multiple clips are slidably arranged inside the second support ring, and an elastic element is provided between each clip and the second support ring.

[0011] Furthermore, the other end of the threaded segment is coaxially connected to a second connecting segment, which is located between the plurality of clamps.

[0012] Furthermore, a rotating ring is fixedly installed on the circumferential surface of the second support ring, and the rotating ring is rotatably disposed within the second cavity.

[0013] In the above technical solution, this utility model provides a stepper motor with a lead screw assembly that is not easily shaken, which has the following beneficial effects:

[0014] By utilizing the threaded ring within the first cavity, the threaded ring can be connected to the threaded section on the screw body as it is inserted into the housing by rotating the screw body, thus enabling a quick connection between the screw body and the housing.

[0015] By utilizing the mounting cylinder and threaded cylinder within the first cavity, the limiting cylinder mounted on the end face of the housing can be easily and quickly disassembled and assembled. This allows for easy and quick disassembly and replacement of the limiting cylinder according to different types of lead screw bodies, thereby improving the adaptability of the limiting cylinder.

[0016] By utilizing the threaded ring in the limiting sleeve, the first connecting section on the lead screw body can be provided with auxiliary support, thereby minimizing the wobbling of the lead screw body relative to the stepper motor housing and preventing damage to the lead screw body.

[0017] By utilizing the screw on the limiting cylinder, rotating the screw drives the slider to slide along the screw's axis, thereby achieving the effect of adjusting the gap between the first support ring and the threaded ring as needed. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0020] Figure 2 Provided for the embodiments of this utility model Figure 1 Partial disassembly diagram;

[0021] Figure 3 Provided for the embodiments of this utility model Figure 2 A partial structural diagram;

[0022] Figure 4 Provided for the embodiments of this utility model Figure 2 Schematic diagram of the structure of the second support ring;

[0023] Figure 5 Provided for the embodiments of this utility model Figure 1 A schematic diagram of the cross-sectional structure;

[0024] Figure 6 Provided for the embodiments of this utility model Figure 6 A partial structural diagram;

[0025] Figure 7 Provided for the embodiments of this utility model Figure 6 A schematic diagram of the structure at point A in the middle.

[0026] Explanation of reference numerals in the attached figures:

[0027] 11. Housing; 12. First cavity; 13. Second cavity; 2. Lead screw body; 21. Threaded section; 22. First connecting section; 23. Second connecting section; 24. Lead screw head section; 3. Mounting cylinder; 4. Threaded cylinder; 5. Limiting cylinder; 51. Reinforcing plate; 6. First support ring; 7. Threaded ring; 8. Screw; 9. Slider; 10. Second support ring; 101. Rotary ring; 102. Clamping plate; 103. Elastic element; 104. Limiting rod. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] Please see Figure 1-7 The present invention provides a stepper motor with a lead screw assembly that is not easily shaken, comprising a housing 11 and a lead screw body 2. A first cavity 12 is provided on the end face of the housing 11. An installation cylinder 3 is provided inside the first cavity 12. A threaded cylinder 4 is threadedly connected inside the installation cylinder 3. A limit cylinder 5 is provided on the threaded cylinder 4. The lead screw body 2 is rotatably disposed in the limit cylinder 5.

[0030] In the above technical solution, by using the limiting cylinder 5, the lead screw body 2 installed in the housing 11 is supported and limited, thereby minimizing the shaking of the lead screw body 2 relative to the housing 11. Furthermore, by using the mounting cylinder 3 and the threaded cylinder 4 in the first cavity 12, the limiting cylinder 5 installed on the end face of the housing 11 can be quickly disassembled and installed, thus facilitating the quick disassembly and replacement of the limiting cylinder 5 according to different types of lead screw bodies 2, thereby improving the adaptability of the limiting cylinder 5.

[0031] Specifically, an abutment plate is fixedly installed on the end face of the threaded cylinder 4. The abutment plate abuts against the end face of the housing 11, and the cross-section of the abutment plate is annular.

[0032] Furthermore, multiple reinforcing plates 51 are fixedly installed on the abutment plate, and each reinforcing plate 51 is fixedly installed on the circumferential surface of the limiting cylinder 5.

[0033] In the above technical solution, by utilizing the mutual contact between the abutting plate and the housing 11, the screw body 2 can avoid the deflection of the limiting cylinder 5 during rotation. Furthermore, by utilizing the reinforcing plate 51, the fixing effect of the limiting cylinder 5 is further improved, thereby enhancing the supporting and limiting effect of the first support ring 6 in the limiting cylinder 5 on the screw body 2 to a certain extent.

[0034] Specifically, the lead screw body 2 includes a threaded section 21, and a threaded ring 7 is threadedly connected to the circumferential surface of the threaded section 21. The threaded ring 7 is rotatably disposed in the first cavity 12.

[0035] In the above technical solution, by utilizing the threaded ring 7 in the first cavity 12, when the lead screw body 2 is assembled with the housing 11, the threaded section 21 on the lead screw body 2 can be quickly assembled with the housing 11 by rotating the lead screw body 2.

[0036] Specifically, the limiting cylinder 5 is provided with a first support ring 6 inside, and a first connecting section 22 is rotatably provided inside the first support ring 6. The first connecting section 22 is coaxially connected to the end face of the threaded section 21, and a lead screw head section 24 is also coaxially connected to the end face of the first connecting section 22.

[0037] In the above technical solution, by utilizing the first support ring 6 in the limiting cylinder 5, the first connecting section 22 on the lead screw body 2 is supported. Furthermore, by utilizing the first support ring 6 and the threaded ring 7 to install and support the lead screw body 2, the shaking of the lead screw body 2 in the housing 11 is minimized, thereby preventing damage to the lead screw body 2.

[0038] Specifically, a screw 8 is rotatably mounted on the limiting cylinder 5, and a slider 9 is threadedly connected to the circumferential surface of the screw 8. The slider 9 is fixedly mounted on the circumferential surface of the first support ring 6.

[0039] In the above technical solution, by utilizing the screw 8 on the limiting cylinder 5, the slider 9 is driven to slide along the axial direction of the screw 8 by rotating the screw 8, thereby achieving the effect of adjusting the distance between the first support ring 6 and the threaded ring 7 as needed.

[0040] Specifically, a groove is provided along the axial direction on the circumferential surface of the limiting cylinder 5, and the slider 9 is slidably disposed in the groove.

[0041] In the above technical solution, by utilizing the sliding groove opened on the circumferential surface of the limiting cylinder 5, the sliding direction and sliding distance of the first support ring 6 can be limited.

[0042] Specifically, a second cavity 13 is provided at the other end of the housing 11. A second support ring 10 is rotatably arranged inside the second cavity 13. Multiple clips 102 are slidably arranged inside the second support ring 10. An elastic element 103 is provided between each clip 102 and the second support ring 10.

[0043] Furthermore, the other end of the threaded section 21 is coaxially connected to a second connecting section 23, which is located between multiple clips 102.

[0044] Furthermore, the two ends of the clips 102 that correspond to each other are chamfered, and anti-slip pads are fixedly installed on the clips 102.

[0045] In the above technical solution, by utilizing the second support ring 10 set in the second cavity 13, the second connecting section 23 on the lead screw body 2 is clamped and limited, thereby further improving the support effect on the lead screw body 2.

[0046] Specifically, the elastic element 103 is a spring, with one end of the spring fixedly mounted on the second support ring 10 and the other end fixedly mounted on the clamping plate 102.

[0047] Furthermore, a limit rod 104 is fixedly installed on the clamp 102, and a spring is sleeved on the limit rod 104.

[0048] By utilizing the spring, when the end face of the second connecting section 23 comes into contact with the chamfered end faces of the multiple clamping pieces 102, the movement of the lead screw body 2 causes the multiple clamping pieces 102 to slide radially along the second support ring 10. At this time, the spring is in a compressed state. Therefore, after the lead screw body 2 is installed at the corresponding position on the housing 11, the elastic force of the spring allows the multiple clamping pieces 102 to clamp the second connecting section 23 on the lead screw body 2, thereby achieving the effect of clamping and limiting the lead screw body 2. The limiting rod 104 on the clamping piece 102 is used to limit the sliding direction of the clamping piece 102.

[0049] Specifically, a rotating ring 101 is fixedly installed on the circumferential surface of the second support ring 10, and the rotating ring 101 is rotatably disposed in the second cavity 13.

[0050] In the above technical solution, by utilizing the rotating ring 101 in the second cavity 13, it is possible to conveniently drive multiple clamped lead screw bodies 2 to rotate.

[0051] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A stepper motor with a lead screw assembly that is not easily shaken, comprising a housing (11) and a lead screw body (2), characterized in that, The end face of the housing (11) is provided with a first cavity (12), and an installation cylinder (3) is provided inside the first cavity (12). The installation cylinder (3) is threadedly connected to a threaded cylinder (4). A limit cylinder (5) is provided on the threaded cylinder (4), and the lead screw body (2) is rotatably disposed in the limit cylinder (5).

2. A stepper motor with a lead screw assembly that is not easily shaken according to claim 1, characterized in that, The lead screw body (2) includes a threaded section (21), and a threaded ring (7) is threadedly connected to the circumferential surface of the threaded section (21). The threaded ring (7) is rotatably disposed in the first cavity (12).

3. A stepper motor with a lead screw assembly that is not easily shaken according to claim 2, characterized in that, The limiting cylinder (5) is provided with a first support ring (6) inside. The first support ring (6) is rotatably provided with a first connecting section (22). The first connecting section (22) is coaxially connected to the end face of the threaded section (21), and the end face of the first connecting section (22) is also coaxially connected to the lead screw head section (24).

4. A stepper motor with a lead screw assembly that is not easily shaken according to claim 3, characterized in that, A screw (8) is rotatably mounted on the limiting cylinder (5), and a slider (9) is threadedly connected to the circumferential surface of the screw (8). The slider (9) is fixedly mounted on the circumferential surface of the first support ring (6).

5. A stepper motor with a lead screw assembly that is not prone to wobbling according to claim 4, characterized in that, The limiting cylinder (5) has a groove along the axial direction on its circumferential surface, and the slider (9) is slidably disposed in the groove.

6. A stepper motor with a lead screw assembly that is not prone to wobbling according to claim 4, characterized in that, The other end of the housing (11) is provided with a second cavity (13), and a second support ring (10) is rotatably arranged inside the second cavity (13). Multiple clips (102) are slidably arranged inside the second support ring (10), and an elastic element (103) is provided between each clip (102) and the second support ring (10).

7. A stepper motor with a lead screw assembly that is not prone to wobbling according to claim 6, characterized in that, The other end of the threaded section (21) is coaxially connected to a second connecting section (23), which is located between the plurality of clamps (102).

8. A stepper motor with a lead screw assembly that is not prone to wobbling according to claim 6, characterized in that, A rotating ring (101) is fixedly installed on the circumferential surface of the second support ring (10), and the rotating ring (101) is rotatably disposed in the second cavity (13).

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