Module sliding block with embedded screw rod
By setting staggered straight and helical grooves in the slider of the embedded lead screw module, combined with ball bearing recycling and servo motor drive, the problem of slider structure clearance is solved, achieving higher transmission accuracy and longer service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN DRONKY POWER TECH CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-05-12
AI Technical Summary
The existing embedded lead screw module slider adopts a split structure design, and gaps are prone to exist between the various parts and connecting keys, which affects the transmission accuracy and shortens the service life.
Design a slider with an embedded lead screw module. By setting a first straight groove and a second straight groove, a first helical groove and a second helical groove in the slider body, the ball is used twice in these grooves. Combined with a servo motor drive mechanism, a tight fit between the ball and the screw is achieved.
It improves transmission accuracy and torque, and extends service life.
Smart Images

Figure CN224229193U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sliders, specifically a slider with an embedded lead screw module. Background Technology
[0002] A lead screw module is a mechanical transmission device that converts rotary motion into linear motion and is widely used in various mechanical equipment. The slider in a lead screw module primarily functions as the moving part connecting the load, cooperating with a guide rail to achieve smooth linear motion. Through its cooperation with the guide rail, the slider ensures that the load can move smoothly along a set path, thereby completing various mechanical actions. Currently used embedded lead screw modules employ a split-type slider design, which can easily lead to various gaps between different parts and connecting keys, affecting transmission accuracy and causing problems such as shortened component lifespan over long-term use. Utility Model Content
[0003] The purpose of this utility model is to provide an embedded lead screw module slider to solve the problem that the existing sliders in the background art adopt a split structure design, and various gaps are easy to exist between the various parts and connecting keys, which affects the transmission accuracy and shortens the service life of the components during long-term use.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] An embedded lead screw module slider includes a slider body movably mounted on a lead screw. The slider body has a through hole that matches the lead screw. A first straight groove and a second straight groove are respectively formed on both sides of the slider body. A first spiral groove and a second spiral groove are spirally formed in the through hole. The first spiral groove and the second spiral groove are staggered. The beginning and end of the first spiral groove are connected to the beginning and end of the first straight groove, and the beginning and end of the second spiral groove are connected to the beginning and end of the second straight groove, respectively. Ball bearings are rolled in the first straight groove, the second straight groove, the first spiral groove, and the second spiral groove.
[0006] Furthermore, the first straight groove has a first interface A and a first interface B connected to its first and last ends respectively, and the first spiral groove has a first interface A and a first interface B connected to its first and last ends respectively. The ball bearings are movably disposed in the first straight groove, the first interface A, the first interface B and the first spiral groove.
[0007] Furthermore, the first and last ends of the second straight groove are respectively connected to the second interface A and the second interface B, and the first and last ends of the second spiral groove are respectively connected to the second interface A and the second interface B. The ball is movably disposed in the second straight groove, the second interface A, the second interface B and the second spiral groove.
[0008] Furthermore, it also includes a base, the end of which is provided with a drive mechanism. The output end of the drive mechanism is connected to a screw. The slider is slidably disposed in the base, and the balls in the first and second helical grooves are engaged with the threads on the screw.
[0009] Compared with the prior art, the beneficial effects of this utility model are:
[0010] This invention achieves dual recycling of the ball bearings in the first straight groove and the second straight groove, and the first spiral groove and the second spiral groove by setting a first straight groove and a second straight groove, connecting the first straight groove and the first spiral groove, and connecting the second straight groove and the second spiral groove. This makes the entire slider structure more compact, the transmission torque greater, the transmission accuracy higher, and the service life longer. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall assembly of this utility model;
[0012] Figure 2 This is a schematic diagram of the first structure of the slider body in this utility model;
[0013] Figure 3 This is a schematic diagram of the second structure of the slider body in this utility model;
[0014] Figure 4 This is a schematic diagram of the third structure of the slider in this utility model;
[0015] Figure 5 This is a first perspective view of the slider body in this utility model;
[0016] Figure 6 This is a second perspective view of the slider body in this utility model.
[0017] Figure label:
[0018] 1-Slider body, 2-Through hole, 3-First straight groove, 4-First spiral groove, 5-Second spiral groove, 6-Second straight groove, 7-First interface A, 8-First interface B, 9-Second interface A, 10-Second interface B, 11-Screw, 12-Base, 13-Drive mechanism. Detailed Implementation
[0019] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.
[0020] Please see Figure 1-6An embedded lead screw module slider includes a slider body 1 movably mounted on a lead screw 11. A through hole 2 is provided in the slider body 1, which is matched with the lead screw 11. A first straight groove 3 and a second straight groove 6 are respectively provided on both sides of the slider body 1. A first spiral groove 4 and a second spiral groove 5 are spirally formed in the through hole 2, and the first spiral groove 4 and the second spiral groove 5 are staggered. The beginning and end ends of the first spiral groove 4 are connected to the beginning and end ends of the first straight groove 3, and the beginning and end ends of the second spiral groove 5 are connected to the beginning and end ends of the second straight groove 6. Rolling balls are rolled in the first straight groove 3, the second straight groove 6, the first spiral groove 4, and the second spiral groove 5.
[0021] In practical use, by setting the first straight groove 3 and the second straight groove 6, and the first spiral groove 4 and the second spiral groove 5, the first straight groove 3 and the first spiral groove 4 are connected, and the second straight groove 6 and the second spiral groove 5 are connected, so that the ball can be used for dual circulation in the first straight groove 3 and the second straight groove 6, and the first spiral groove 4 and the second spiral groove 5. This makes the entire slider body 1 more compact, with greater transmission torque, higher transmission accuracy, and longer service life.
[0022] like Figure 5 and 6 As shown, in this embodiment, the first straight groove 3 is connected to the first interface A7 and the first interface B8 at its beginning and end, respectively, and the first spiral groove 4 is connected to the first interface A7 and the first interface B8 at its beginning and end, respectively. Ball bearings are movably disposed within the first straight groove 3, the first interface A7, the first interface B8, and the first spiral groove 4. Specifically, the arrangement of the first interface A7 and the first interface B8 facilitates the circulation of steel balls in the first straight groove 3 and the first spiral groove 4. The second straight groove 6 is connected to the second interface A9 and the second interface B10 at its beginning and end, respectively, and the second spiral groove 5 is connected to the second interface A9 and the second interface B10 at its beginning and end, respectively. Ball bearings are movably disposed within the second straight groove 6, the second interface A9, the second interface B10, and the second spiral groove 5. Specifically, the arrangement of the second interface A9 and the second interface B10 facilitates the circulation of steel balls in the second straight groove 6 and the second spiral groove 5. During movement, the steel ball flows from the first interface A7 to the first spiral groove 4, from the first spiral groove 4 to the first interface B8, and from the first interface B8 back to the first straight groove 3 to complete the cycle; the steel ball flows from the second interface A9 to the second spiral groove 5, from the second spiral groove 5 to the second interface B10, and from the second interface B10 back to the second straight groove 6 to complete the cycle.
[0023] In this embodiment, a base 12 is also included. A drive mechanism 13 is provided at the end of the base 12. The output end of the drive mechanism 13 is connected to the screw 11. The slider 1 is slidably disposed in the base 12. The balls in the first spiral groove 4 and the second spiral groove 5 are engaged with the threads on the screw 11. Specifically, the screw 11 can be rotated by starting the drive mechanism 13, thereby moving the slider 1. During the movement, the balls in the first spiral groove 4 and the second spiral groove 5 engage with the threads on the screw 11, which facilitates the cyclic movement of the balls, making the structure more compact, the transmission torque greater, the transmission accuracy higher, and the service life longer.
[0024] Among them, the drive mechanism 13 is a servo motor that can rotate in both directions.
[0025] When the drive mechanism 13 drives the screw 11 to rotate, the thread on the screw 11 engages with the balls, so that under the rotation of the screw, multiple balls can circulate in the first interface A7, the first interface B8, the first straight groove 3 and the first spiral groove 4, as well as the second interface A9, the second interface B10, the second straight groove 6 and the first spiral groove 4, pushing the slider 1 to move along the screw axis, thereby achieving linear motion.
[0026] The function of the first interface A7, the first interface B8, the second interface A9, and the second interface B10 is to facilitate the flow of the ball bearings.
[0027] The top of the slider body 1 is equipped with a hole, which can be used to connect it with the components it is used with by bolts.
[0028] It should be noted that in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device 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. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "fixed," "installed," "connected," and "linked" should be interpreted broadly. For example, "linked" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "linked" can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the 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 or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.
Claims
1. A slider with an embedded lead screw module, comprising a slider body (1) movably disposed on a lead screw (11), wherein a through hole (2) is provided in the slider body (1), the through hole (2) being matched with the lead screw (11), characterized in that: The slider body (1) has a first straight groove (3) and a second straight groove (6) on its two sides. The through hole (2) has a first spiral groove (4) and a second spiral groove (5) in a spiral shape. The first spiral groove (4) and the second spiral groove (5) are staggered. The first and second ends of the first spiral groove (4) are connected to the first and second ends of the first straight groove (3), and the first and second ends of the second spiral groove (5) are connected to the first and second ends of the second straight groove (6). Rolling balls are rolled in the first straight groove (3), the second straight groove (6), the first spiral groove (4) and the second spiral groove (5).
2. The embedded lead screw module slider according to claim 1, characterized in that: The first straight groove (3) is connected to the first interface A (7) and the first interface B (8) at its beginning and end respectively. The first spiral groove (4) is connected to the first interface A (7) and the first interface B (8) at its beginning and end respectively. The ball is movably disposed in the first straight groove (3), the first interface A (7), the first interface B (8) and the first spiral groove (4).
3. The embedded lead screw module slider according to claim 1, characterized in that: The first and last ends of the second straight groove (6) are respectively connected to the second interface A (9) and the second interface B (10), and the first and last ends of the second spiral groove (5) are respectively connected to the second interface A (9) and the second interface B (10). The ball is movably arranged in the second straight groove (6), the second interface A (9), the second interface B (10) and the second spiral groove (5).
4. The embedded lead screw module slider according to claim 1, characterized in that: It also includes a base (12), and a drive mechanism (13) is provided at the end of the base (12). The output end of the drive mechanism (13) is connected to the screw (11). The slider (1) is slidably disposed in the base (12). The balls in the first spiral groove (4) and the second spiral groove (5) are engaged with the threads on the screw (11).