Transmission mechanism

Abstract

The invention discloses a transmission mechanism. The transmission mechanism comprises a lead screw assembly and an anti-shake assembly. Wherein the lead screw assembly comprises a lead screw, a base and a sliding block, the lead screw is rotatably installed on the base, and the sliding block is arranged on the lead screw in a sleeving mode and can be driven by the lead screw to reciprocate in the length direction of the lead screw; the anti-shake assembly comprises a mounting part, a transmission part and an abutting part, the mounting part is mounted on the base, and the transmission part is rotationally connected to the mounting part; the transmission part is configured to drive the abutting part to move in the direction close to the lead screw so as to abut against the lead screw in the process that the sliding block moves in the length direction of the lead screw. And in the process that the sliding block moves in the length direction of the lead screw, the abutting part is driven to move in the direction away from the lead screw so as to avoid the sliding block. The transmission mechanism at least can solve the problem that in the prior art, a lead screw is prone to shaking in the transmission process.

Description

Technical Field

[0001] This application relates to the field of mechanical transmission device technology, and more specifically, to a transmission mechanism. Background Technology

[0002] In related technologies, due to insufficient rigidity of the lead screw, when the length of the lead screw is long (usually exceeding 1.5 meters), if the lead screw encounters factors such as uneven force during transmission, the lead screw is prone to vibration, resulting in a decrease in the transmission accuracy of the transmission system or an increase in the noise of the equipment operation. Summary of the Invention

[0003] The main objective of this application is to provide a transmission mechanism to solve the problem of vibration that easily occurs in the lead screw during transmission in the prior art.

[0004] According to one aspect of this application, a transmission mechanism is provided, comprising: A lead screw assembly, comprising a lead screw, a base, and a slider, wherein the lead screw is rotatably mounted on the base, and the slider is sleeved on the lead screw and can reciprocate along the length direction of the lead screw under the drive of the lead screw; A shake-stabilizing component includes a mounting part, a transmission part, and a stop top. The mounting part is mounted on the base, and the transmission part is rotatably connected to the mounting part. The transmission part is configured to drive the stop top to move towards the lead screw to abut against the lead screw during the movement of the slider along the length direction of the lead screw, and to drive the stop top to move away from the lead screw to avoid the slider during the movement of the slider along the length direction of the lead screw.

[0005] Furthermore, the slider is provided with a driving part, and the transmission part includes a driving engagement part. The slider moves along the length direction of the lead screw to drive the driving part to drive the driving engagement part, so that the abutment moves back and forth along the radial direction of the lead screw and abuts against the lead screw or avoids the slider.

[0006] Furthermore, the driving part includes a first rack, and the driving engagement part includes a first gear. The first rack extends along the length direction of the lead screw, and the slider reciprocates along the length direction of the lead screw to drive the first rack to drive the first gear to rotate in a first direction and drive the abutment to move away from the lead screw, and to rotate in a second direction opposite to the first direction and drive the abutment to move closer to the lead screw.

[0007] Furthermore, the driving unit further includes a second rack, and the driving engagement unit further includes a second gear. The second rack is offset from the first rack along the radial direction of the lead screw, and the second rack extends along the length direction of the lead screw. The slider reciprocates along the length direction of the lead screw to drive the second rack to drive the second gear to rotate in the first direction and drive the abutment to move towards the lead screw, and rotate in the second direction and drive the abutment to move away from the lead screw.

[0008] Furthermore, both the first rack and the second rack are detachably disposed on the slider, and the first rack and the second rack are respectively located at opposite ends of the slider and extend in opposite directions.

[0009] Furthermore, the abutment includes a connecting block and an abutment member, the transmission part includes a transmission shaft, the transmission shaft is rotatably disposed on the mounting part and extends in the radial direction of the lead screw, the connecting block is sleeved on the transmission shaft and reciprocates in the radial direction of the lead screw under the drive of the transmission shaft so that the abutment member abuts against the lead screw or avoids the slider.

[0010] Furthermore, the anti-shake component also includes an elastic part, the abutment is movably disposed on the connecting block and can reciprocate along the radial direction of the lead screw, the elastic part abuts between the connecting block and the abutment, and the elastic part is at least used to apply elastic force to the abutment so that the abutment is close to the outer periphery of the lead screw.

[0011] Furthermore, the connecting block is provided with a limiting groove, and the abutment is inserted into the limiting groove. The limiting groove is at least used to prevent the abutment from rotating relative to the connecting block; and / or, The abutment has a V-shaped groove at one end facing the lead screw. When the abutment abuts against the lead screw, the inner wall of the V-shaped groove fits against the outer periphery of the lead screw.

[0012] Furthermore, the anti-shake component also includes a guide portion, which is fixedly connected to the mounting portion and extends along the radial direction of the lead screw. The abutment is sleeved on the guide portion and reciprocates along the radial direction of the lead screw under the drive of the transmission portion.

[0013] Furthermore, the abutment includes two abutments, which are symmetrically arranged on opposite sides of the lead screw along the radial direction of the lead screw. The transmission unit is configured to drive the two abutments to move toward the lead screw to clamp the lead screw during the movement of the slider along the length direction of the lead screw, and to drive the two abutments to move away from the lead screw to release the lead screw and avoid the slider during the movement of the slider along the length direction of the lead screw.

[0014] In this application, the lead screw of the lead screw assembly can rotate relative to the base under the drive of an external force. During the rotation of the lead screw, the slider sleeved on the lead screw can reciprocate along the length direction of the lead screw under the drive of the lead screw. In the initial state, the abutment abuts against the outer periphery of the lead screw, thus providing effective support for the lead screw and preventing the lead screw from vibrating during transmission. As the slider moves along the length direction of the lead screw and gradually approaches the anti-vibration component, the transmission part can drive the abutment to gradually move away from the lead screw. As the slider gets closer and closer to the location of the anti-vibration component, the abutment is also driven further and further away from the outer periphery of the lead screw by the transmission part. This prevents the abutment from interfering with the movement of the slider, allowing the slider to pass smoothly between the abutment and the lead screw. After the slider passes the position of the anti-shake component, the transmission unit can drive the top abutment to gradually move closer to the lead screw. As the slider moves further and further away from the anti-shake component, the top abutment, driven by the transmission unit, moves closer and closer to the outer periphery of the lead screw, eventually abutting against the outer periphery of the lead screw again. This effectively supports the lead screw and prevents it from shaking during transmission. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, are illustrative and descriptive, serving to explain this application and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a structural diagram of the transmission mechanism (when the abutting member abuts against the lead screw) disclosed in the embodiments of this application, viewed from a first perspective. Figure 2 for Figure 1 Enlarged view of section A; Figure 3 This is a structural diagram of the transmission mechanism (when the abutting member is not abutting the lead screw) disclosed in the embodiments of this application from a first-view perspective; Figure 4 for Figure 3 Enlarged view of section B; Figure 5 This is a structural diagram of the transmission mechanism (when the abutting member is not abutting the lead screw) disclosed in the embodiments of this application from a second-view perspective; Figure 6 for Figure 5 Enlarged view of section C; Figure 7 This is a cross-sectional view of the transmission mechanism (when the abutting member is not abutting the lead screw) disclosed in the embodiments of this application from a third-person perspective. Figure 8 This is a structural diagram of the transmission mechanism (when the abutting member abuts against the lead screw) disclosed in the embodiments of this application, viewed from a second perspective. Figure 9 This is a cross-sectional view of the transmission mechanism (when the abutting member abuts against the lead screw) disclosed in the embodiments of this application from a third-person perspective.

[0016] The above figures include the following reference numerals: 100. Transmission mechanism; 10. Lead screw assembly; 11. Lead screw; 12. Base; 13. Slider; 131. Drive unit; 1311. First rack; 1312. Second rack; 132. First rack seat; 133. Second rack seat; 14. Drive device; 141. Drive motor; 20. Anti-vibration component; 21. Mounting part; 211. First mounting seat; 212. Second mounting seat; 213. Third mounting seat; 22. Transmission part; 221. Drive mating part; 2211. First gear; 2212. Second gear; 222. Drive shaft; 223. Third gear; 23. Abutment; 231. Connecting block; 2311. Limiting groove; 232. Abutment part; 2321. V-groove; 24. Elastic part; 241. Spring; 25. Guide part; 251. Guide shaft. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0019] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0020] As described in the background section, in related technologies, due to insufficient stiffness of the lead screw, when the lead screw is long (usually exceeding 1.5 meters), it is prone to vibration if it encounters factors such as uneven force during transmission, leading to a decrease in the transmission accuracy of the transmission system or an increase in equipment operating noise. Therefore, this application provides a new transmission mechanism that can effectively prevent lead screw vibration. The transmission mechanism of this application will be described below with reference to the accompanying drawings.

[0021] See Figures 1 to 9 As shown, this application embodiment provides a transmission mechanism 100, which includes a lead screw assembly 10 and a vibration stabilization assembly 20.

[0022] The lead screw assembly 10 includes a lead screw 11, a base 12, and a slider 13. The lead screw 11 is rotatably mounted on the base 12, and the slider 13 is sleeved on the lead screw 11 and can move along the length direction of the lead screw 11 under the drive of the lead screw 11 (i.e., Figure 1 and Figure 3 (shown in the length direction) reciprocating motion; the anti-shake component 20 includes a mounting part 21, a transmission part 22, and a stop 23. The mounting part 21 is mounted on the base 12, and the transmission part 22 is rotatably connected to the mounting part 21. The transmission part 22 is configured to drive the stop 23 to move towards the lead screw 11 to abut against the lead screw 11 during the movement of the slider 13 along the length direction of the lead screw 11, and to drive the stop 23 to move away from the lead screw 11 to avoid the slider 13 during the movement of the slider 13 along the length direction of the lead screw 11.

[0023] In this application, the lead screw 11 of the lead screw assembly 10 can rotate relative to the base 12 under the drive of an external force. During the rotation of the lead screw 11, the slider 13 sleeved on the lead screw 11 can reciprocate along the length direction of the lead screw 11 under the drive of the lead screw 11. In the initial state, the abutment 23 abuts against the outer periphery of the lead screw 11, thus providing effective support for the lead screw 11 and preventing the lead screw 11 from shaking during transmission. When the slider 13 moves along the length direction of the lead screw 11 and gradually approaches the anti-shake assembly 20, the transmission part 22 can drive the abutment 23 to gradually move away from the lead screw 11. As the slider 13 gets closer and closer to the position of the anti-shake assembly 20, the abutment 23 also moves further and further away from the outer periphery of the lead screw 11 under the drive of the transmission part. This prevents the abutment 23 from interfering with the movement of the slider 13, allowing the slider 13 to pass smoothly between the abutment 23 and the lead screw 11. After the slider 13 passes the position of the anti-shake component 20, the transmission part 22 can drive the top abutment 23 to gradually move closer to the lead screw 11. As the slider 13 moves further and further away from the position of the anti-shake component 20, the top abutment 23 also moves closer and closer to the outer periphery of the lead screw 11 under the drive of the transmission part 22, and finally abuts against the outer periphery of the lead screw 11 again, thereby effectively supporting the lead screw 11 and preventing the lead screw 11 from shaking during transmission.

[0024] In other words, compared with existing transmission systems, the transmission mechanism 100 of this application can effectively support the lead screw 11 of the transmission mechanism 100 by setting the anti-vibration component 20 on the base, thereby preventing the lead screw 11 from vibrating during transmission, thus improving the transmission accuracy of the transmission mechanism 100, and also effectively reducing the noise of the equipment (i.e., the equipment equipped with the transmission mechanism 100 of this application, such as CNC machine tools and automated equipment) during operation.

[0025] It is understood that in order to drive the lead screw 11 to rotate relative to the base 12, this application provides a drive device 14 on the base 12 to provide power to the lead screw 11. The drive device 14 may be, for example, a drive motor 141 or a hydraulic motor (not shown in the figure).

[0026] Further, see Figures 1 to 4 As shown, the slider 13 is provided with a driving part 131, and the transmission part 22 includes a driving engagement part 221. The slider 13 moves along the length direction of the lead screw 11 to drive the driving part 131 to drive the driving engagement part 221, so that the abutment 23 moves along the radial direction of the lead screw 11 (i.e., Figure 1 and Figure 3 (as shown in the radial direction) reciprocates and abuts against the lead screw 11 or the clearance slider 13.

[0027] Specifically, the driving part 131 on the slider 13 interacts with the driving engagement part 221 of the transmission part 22. When the slider 13 moves along the length of the lead screw 11, it can effectively drive the driving engagement part 221 to move, realizing the reciprocating movement of the abutment 23 along the radial direction of the lead screw 11. This design allows the action of the abutment 23 to be automatically triggered following the movement of the slider 13, without the need for additional complex control mechanisms or additional power devices (such as motors), simplifying the control logic of the transmission mechanism 100 and improving the overall stability and reliability of operation. The driving part 131 drives the driving engagement part 221 to make the abutment 23 abut against the lead screw 11, thus providing real-time support for the lead screw 11 during the movement of the slider 13, effectively reducing the radial sway of the lead screw 11, effectively enhancing the stability of the lead screw 11 during transmission, thereby improving the working accuracy of the transmission mechanism 100 and ensuring the stable operation of the equipment. When the slider 13 moves to the position where it needs to avoid a collision, the drive unit 131 also moves the abutment 23 in the radial direction away from the lead screw 11 via the drive engagement part 221. This allows the abutment 23 to accurately avoid the slider 13, preventing interference and collision between the two (i.e., the abutment 23 and the slider 13), ensuring smooth transmission, and thus extending the service life of each component. Furthermore, the transmission mechanism 100 of this application directly drives the drive engagement part 221 of the transmission unit 22 via the drive unit 131 of the slider 13, eliminating the need for additional complex transmission structures. This allows for a more compact internal structure of the transmission mechanism 100, effectively utilizing space and facilitating its installation in space-constrained equipment.

[0028] Further, see Figures 1 to 4 , Figure 6 As shown, the drive unit 131 includes a first rack 1311, and the drive engagement unit 221 includes a first gear 2211. The first rack 1311 extends along the length direction of the lead screw 11, and the slider 13 reciprocates along the length direction of the lead screw 11 to drive the first rack 1311 to drive the first gear 2211 along a first direction (i.e., Figure 6 The direction indicated by a) rotates and drives the top 23 to move away from the lead screw 11 and in a second direction opposite to the first direction (i.e., Figure 6 (In the direction indicated by b) rotate and drive the top 23 to move towards the lead screw 11.

[0029] Specifically, the first rack 1311 extends along the length of the lead screw 11. As the slider 13 moves along the length of the lead screw 11, it drives the first rack 1311 to move as well. When the first rack 1311 meshes with the first gear 2211, it drives the first gear 2211 to rotate, thus precisely converting the linear reciprocating motion of the slider 13 into the rotational motion of the first gear 2211. This conversion between linear and rotational motion provides the basis for precise motion control of the abutment 23, allowing for accurate control of its direction and position. During the movement of the slider 13, its reciprocating motion causes the first rack 1311 to drive the first gear 2211 to rotate in different directions (i.e., the first direction or the second direction), thereby enabling the abutment 23 to move towards or away from the lead screw 11. This bidirectional drive adjustment mechanism allows the transmission mechanism 100 to flexibly and precisely adjust the position of the abutment 23 according to the motion state of the slider 13, meeting the needs of the transmission mechanism 100 at different working stages. When the first gear 2211 rotates in the second direction, driving the abutment 23 to move closer to and abut against the lead screw 11, the abutment 23 provides stable support for the lead screw 11. This effectively reduces the radial wobble of the lead screw 11 during transmission, ensuring the stability of the lead screw assembly 10 and improving the working accuracy of the transmission mechanism 100. When the first gear 2211 rotates in the first direction, driving the abutment 23 to move away from the lead screw 11, the abutment 23 precisely avoids the slider 13, preventing collisions and interference between the abutment 23 and the slider 13 during movement. This ensures smooth transmission and effectively reduces the risk of equipment damage.

[0030] Further, see Figures 1 to 4 , Figure 6 As shown, the drive unit 131 also includes a second rack 1312, and the drive engagement unit 221 also includes a second gear 2212. The second rack 1312 and the first rack 1311 are offset from each other in the radial direction of the lead screw 11, and the second rack 1312 extends in the length direction of the lead screw 11. The slider 13 reciprocates in the length direction of the lead screw 11 to drive the second rack 1312 to drive the second gear 2212 to rotate in the first direction and drive the top 23 to move closer to the lead screw 11, and to rotate in the second direction and drive the top 23 to move away from the lead screw 11.

[0031] Specifically, the second rack 1312 and the first rack 1311 of the drive unit 131 are offset along the radial direction of the lead screw 11 and both extend along the length direction of the lead screw 11. During the movement of the slider 13, the slider 13 can drive them (i.e., the second rack 1312 and the first rack 1311) to drive the second gear 2212 and the first gear 2211 respectively. The coordinated work of the two racks (i.e., the second rack 1312 and the first rack 1311) makes the motion control of the abutment 23 more precise, and can more accurately adjust the timing and position of the abutment 23 approaching or moving away from the lead screw 11, meeting the requirements of high-precision work. In actual operation, when the slider 13 moves along the length of the lead screw 11 and gradually approaches the anti-shake component 20, the first rack 1311 first meshes with the first gear 2211, thus driving the first gear 2211 to rotate in the first direction and drive the abutment 23 to move away from the lead screw 11, so that the abutment 23 can avoid the slider 13. After the slider 13 passes the position of the anti-shake component 20, the slider 13 continues to move along the length of the lead screw 11 and gradually moves away from the anti-shake component 20. During this process, the second rack 1312 then meshes with the second gear 2212, thus driving the second gear 2212 to rotate in the first direction and drive the abutment 23 to move towards the lead screw 11, so that the abutment 23 can abut against the lead screw 11 again, providing reliable support for the lead screw 11 and preventing the lead screw 11 from shaking during transmission.

[0032] It is understood that, in order to enable the first gear 2211 to drive the top 23 to move away from the lead screw 11 during the rotation of the first gear 2211 in the first direction, the transmission part 22 of this application also includes a third gear 223. The third gear 223 meshes with the first gear 2211. When the first gear 2211 rotates in the first direction, the first gear 2211 can drive the third gear 223 to rotate in the second direction, so that the third gear 223 can drive the top 23 to move away from the lead screw 11.

[0033] Further, see Figures 1 to 4 , Figure 7 as well as Figure 9 As shown, the first rack 1311 and the second rack 1312 are detachably disposed on the slider 13, and the first rack 1311 and the second rack 1312 are located at opposite ends of the slider 13 and extend in opposite directions.

[0034] Specifically, the first rack 1311 and the second rack 1312 are detachably mounted on the slider 13. When the rack (i.e., the first rack 1311 or the second rack 1312) is worn or damaged, the operator can easily remove the rack from the slider 13 for replacement without large-scale disassembly of the entire transmission mechanism 100. This effectively reduces maintenance costs and difficulty, and improves equipment maintenance efficiency. Furthermore, in different working scenarios, different specifications of the first rack 1311 and the second rack 1312 can be selected and installed on the slider 13 according to actual needs. This configuration allows the first rack 1311 to mesh with the first gear 2211 during the movement of the slider 13 along the length of the lead screw 11, driving the first gear 2211 to rotate in the first direction and drive the abutment 23 to move away from the lead screw 11, so that the abutment 23 can avoid the slider 13. After the slider 13 passes the position of the anti-shake component 20, the second rack 1312 can mesh with the second gear 2212 to drive the second gear 2212 to rotate in the first direction and drive the abutment 23 to move closer to the lead screw 11, so that the abutment 23 can abut against the lead screw 11 again.

[0035] It is understandable that, in order to facilitate the installation and disassembly of the first rack 1311 and the second rack 1312, this application provides a first rack seat 132 on the slider 13 for mounting the first rack 1311 and a second rack seat 133 on the slider 13 for mounting the second rack 1312. The arrangement of the first rack seat 132 and the second rack seat 133 not only facilitates the installation and disassembly of the first rack 1311 and the second rack 1312, but also allows operators to flexibly adjust the positions of the first rack 1311 and the second rack 1312 according to actual conditions and needs, thereby improving the reliability of the first rack 1311 and the second rack 1312.

[0036] Further, see Figures 1 to 4 , Figure 7 as well as Figure 9 As shown, the abutment 23 includes a connecting block 231 and an abutment member 232. The transmission part 22 includes a transmission shaft 222, which is rotatably disposed on the mounting part 21 and extends in the radial direction of the lead screw 11. The connecting block 231 is sleeved on the transmission shaft 222 and reciprocates in the radial direction of the lead screw 11 under the drive of the transmission shaft 222 so that the abutment member 232 abuts against the lead screw 11 or avoids the slider 13.

[0037] Specifically, the abutment 23 is fitted onto the drive shaft 222 of the transmission unit 22 via a connecting block 231. During actual installation, both the second gear 2212 and the third gear 223 are fitted onto the drive shaft 222, while the first gear 2211 is rotatably connected to the base 12. This allows the drive shaft 222 to rotate in two opposite directions (i.e., the first direction and the second direction) under the drive of the first gear 2211 and the second gear 2212. When the drive shaft 222 rotates, the connecting block 231 precisely converts the rotation of the drive shaft 222 into a linear reciprocating motion along the radial direction of the lead screw 11, thereby driving the abutment 232 to accurately abut against the lead screw 11 or avoid the slider 13. This allows the anti-vibration assembly 20 to abut against the lead screw 11 and precisely avoid the slider 13, meeting the needs of the transmission mechanism 100 for different working states. When the connecting block 231 drives the abutment 232 to abut the lead screw 11 under the drive of the transmission shaft 222, the transmission shaft 222 extends radially along the lead screw 11 and is installed firmly, which can provide stable support for the abutment 232. This can effectively reduce the radial sway of the lead screw 11 during the transmission process, improve the stability of the lead screw assembly 10 transmission, and thus improve the working accuracy of the transmission mechanism 100.

[0038] It is understandable that, in practical applications, in order to better install the image stabilization component 20, the mounting part 21 can be configured as a split structure including a first mounting base 211, a second mounting base 212, and a third mounting base 213. The first mounting base 211 and the second mounting base 212 are spaced apart on opposite sides of the lead screw 11 along the radial direction of the lead screw 11 and connected to the base 12. The transmission shaft 222 is rotatably disposed between the first mounting base 211 and the second mounting base 212. The third mounting base 213 is offset from the first mounting base 211 and the second mounting base 212 and connected to the base 12. The first gear 2211 is rotatably disposed on the third mounting base 213. In this way, the various structures of the image stabilization component 20 can be reasonably arranged, improving the rationality and reliability of the structure.

[0039] Further, see Figures 1 to 4 , Figure 7 as well as Figure 9 As shown, the anti-shake component 20 also includes an elastic part 24, and a stop member 232 is movably disposed on the connecting block 231 and can reciprocate along the radial direction of the lead screw 11. The elastic part 24 abuts against the connecting block 231 and the stop member 232, and the elastic part is at least used to apply elastic force to the stop member 232 so that the stop member 232 is close to the outer periphery of the lead screw 11.

[0040] Specifically, the elastic part 24 can be a spring 241 or an elastic rubber component (not shown in the figure), etc. The elastic part 24 can apply elastic force to the abutment 232, keeping it always close to the outer periphery of the lead screw 11. During the rotation of the lead screw 11, under the elastic force applied by the elastic part 24, the abutment 232 can elastically abut against the lead screw 11, thus effectively supporting the lead screw 11 without excessively hindering its rotation. At the same time, the elastic part 24 can continuously provide a stable abutting force, effectively reducing the radial wobble of the lead screw 11, further improving the anti-shake effect of the anti-shake assembly 20, and ensuring the high precision and stability of the lead screw assembly 10 transmission. During the operation of the transmission mechanism 100, even if the lead screw 11 experiences a slight radial displacement due to uneven force during transmission, the elastic part 24 can adaptively adjust the position of the abutment 232, continuously maintaining close contact with the lead screw 11, compensating for the impact of the displacement of the lead screw 11, and maintaining a stable anti-shake function. Furthermore, the elastic part 24 effectively buffers the impact force generated by the relative movement between components. Reducing rigid collisions between the abutment 232 and the lead screw 11 lowers component wear, effectively protecting the abutment 232 and the lead screw 11, extending their service life, and thus improving the overall reliability and durability of the transmission mechanism 100. Moreover, the abutment 232 can reciprocate along the radial direction of the lead screw 11 on the connecting block 231. Combined with the elastic force of the elastic part 24, the abutment 232 can flexibly adjust its position within a certain range. While adapting to minor radial changes in the lead screw 11, it also allows for smoother abutment and avoidance actions when the transmission part 22 drives the connecting block 231, improving the overall flexibility of the anti-shake assembly 20.

[0041] Further, see Figure 2 , Figure 4 , Figure 7 as well as Figure 9 As shown, a limiting groove 2311 is provided on the connecting block 231, and the abutment 232 is inserted into the limiting groove 2311. The limiting groove 2311 is at least used to prevent the abutment 232 from rotating relative to the connecting block 231.

[0042] Specifically, the abutment 232 is inserted into the limiting groove 2311 of the connecting block 231. The limiting groove 2311 effectively prevents the abutment 232 from rotating relative to the connecting block 231. This ensures that when the abutment 232 abuts against the lead screw 11 under the elastic force of the elastic part 24, it maintains the correct abutting direction, stably applying abutting force to the lead screw 11, enhancing the anti-vibration effect of the anti-vibration assembly 20, and ensuring the stability of the lead screw assembly 10 transmission. Simultaneously, the accurate abutting direction fixes the contact position and angle between the abutment 232 and the lead screw 11, precisely transmitting the elastic force of the elastic part 24 to the lead screw 11. This avoids force dispersion or deviation due to the rotation of the abutment 232, improving the utilization efficiency of the abutting force and further enhancing the working accuracy of the transmission mechanism 100. The limiting groove 2311 restricts the rotation of the abutment 232, reducing the loosening between the connecting block 231 and the abutment 232 that may occur due to accidental rotation of the abutment 232, thus enhancing the structural stability of the abutment 23. During the operation of the transmission mechanism 100, even if subjected to vibration or impact, the abutment 232 can be firmly held on the connecting block 231, ensuring that the anti-vibration assembly 20 can work normally and effectively extending the service life of each component.

[0043] Optionally, the end of the abutment 232 facing the lead screw 11 is provided with a V-groove 2321. When the abutment 232 abuts against the lead screw 11, the inner wall of the V-groove 2321 fits against the outer periphery of the lead screw 11.

[0044] Specifically, the V-groove 2321 provided on the end of the abutment 232 facing the lead screw 11 allows the abutment 232 to better fit against the outer periphery of the lead screw 11 when it abuts against it, forming multi-faceted contact. Compared to a planar abutment, this multi-faceted contact provides multiple support points, thus providing more stable support force, effectively reducing radial wobble of the lead screw 11 during transmission, enhancing the anti-vibration effect of the anti-vibration assembly 20, and ensuring the stability of the lead screw assembly 10 during transmission. Furthermore, the V-groove 2321 has a certain self-aligning capability. Even if there is a slight positional deviation in the lead screw 11 during installation or operation, the V-groove 2321 can automatically adjust its abutment position by fitting against the outer periphery of the lead screw 11, ensuring that the abutment 232 always maintains a good abutment state, maintaining stable support for the lead screw 11, and improving the working accuracy of the transmission mechanism 100. In this application, the included angle of the opening of the V-groove 2321 (i.e., Figure 7 The size of α shown can be reasonably adjusted according to actual conditions and needs, and this application does not impose specific limitations. However, in actual application, in order to enable the abutment 232 to better abut against the outer periphery of the lead screw 11, the range of α is generally set to 60°≤α≤120°.

[0045] It is understandable that, in order to prevent the inner wall of the V-groove 2321 from making hard contact with the outer periphery of the lead screw 11, a rubber pad can be provided on the inner wall of the V-groove 2321 during actual manufacturing. The rubber pad can not only prevent the abutment 232 from making hard contact with the lead screw 11, but also increase the friction between the abutment 232 and the lead screw 11, so that the abutment 232 can better play its abutment role, and thus the anti-shake component 20 can better play its anti-shake role.

[0046] Further, see Figures 1 to 4 As shown, the anti-shake component 20 also includes a guide portion 25, which is fixedly connected to the mounting portion 21 and extends in the radial direction of the lead screw 11. The top part 23 is sleeved on the guide portion 25 and reciprocates in the radial direction of the lead screw 11 under the drive of the transmission portion 22.

[0047] Specifically, the guide portion 25 can be, for example, a guide shaft 251 or a guide post. The guide portion 25 is fixedly connected to the mounting portion 21 and extends radially along the lead screw 11. During actual installation, the guide portion 25 is fixedly connected between the first mounting base 211 and the second mounting base 212, and the abutment 23 is fitted onto the guide portion 25. This allows the abutment 23 to reciprocate linearly along the radial direction of the lead screw 11 under the drive of the transmission portion 22, thereby accurately achieving the action of abutting the lead screw 11 or avoiding the slider 13, preventing the abutment 23 from deviating during movement, effectively improving the accuracy of the anti-shake component 20's movement, and ensuring the stability of the transmission mechanism 100's operation. Simultaneously, the guide portion 25 provides precise guidance for the movement of the abutment 23, thus effectively reducing the accumulation of errors during the movement of the abutment 23. During the transmission process of the lead screw 11, the abutment 23 always accurately abuts against a specific position on the lead screw 11, which effectively enhances the anti-vibration effect of the anti-vibration assembly 20 and helps improve the transmission accuracy of the lead screw assembly 10, meeting the requirements of working scenarios with high transmission accuracy. Furthermore, the guide portion 25 provides additional support for the abutment 23. When the abutment 23 abuts against the lead screw 11, the guide portion 25 can share some of the abutment force, keeping the abutment 23 stable under stress and preventing it from shaking or deforming. This not only enhances the structural stability of the abutment 23 itself but also further improves the overall stability of the anti-vibration assembly 20, ensuring that the anti-vibration function of the anti-vibration assembly 20 can reliably function during the operation of the transmission mechanism 100.

[0048] Further, see Figures 1 to 4 , Figure 7 as well as Figure 9As shown, the abutment 23 includes two abutments symmetrically arranged on opposite sides of the lead screw 11 along the radial direction of the lead screw 11. The transmission part 22 is configured to drive the two abutments 23 to move toward the lead screw 11 to clamp the lead screw 11 during the movement of the slider 13 along the length direction of the lead screw 11, and to drive the two abutments 23 to move away from the lead screw 11 during the movement of the slider 13 along the length direction of the lead screw 11 to release the lead screw 11 and avoid the slider 13.

[0049] Specifically, two abutment tops 23 are symmetrically arranged along the radial direction of the lead screw 11. Driven by the transmission unit 22, they move simultaneously toward the lead screw 11 and clamp it. This symmetrical clamping method can apply abutment force evenly from both sides of the lead screw 11, effectively counteracting the radial wobble generated by the lead screw 11 during rotation. Compared with a single abutment top 23, the symmetrical arrangement of two abutment tops 23 can significantly enhance the anti-vibration effect, ensuring the high precision and stability of the lead screw assembly 10 transmission. At the same time, the two abutment tops 23 act symmetrically on opposite sides of the lead screw 11. Since the abutment member 232 is provided with a V-shaped groove 2321, it can suppress the vibration of the lead screw 11 in all directions. No matter what causes the lead screw 11 to deviate radially, it can be quickly corrected by the symmetrical abutment force, thereby ensuring the smoothness of the lead screw 11 during transmission and improving the working quality of the transmission mechanism 100. The transmission unit 22 drives the two abutment tops 23 to move synchronously, ensuring their consistency during the abutment and avoidance processes. Whether clamping the lead screw 11 or releasing it to avoid the slider 13, the two abutments 23 can move precisely and in coordination. This precise control makes the operation of the transmission mechanism 100 more reliable and avoids malfunctions caused by uncoordinated movements of the two abutments 23. When the slider 13 moves along the length of the lead screw 11 and approaches the anti-shake component 20, the transmission unit 22 can promptly drive the two abutments 23 to move away from the lead screw 11, precisely avoiding the slider 13. This flexible avoidance mechanism ensures the smooth movement of the slider 13 and avoids interference and collision between the abutments 23 and the slider 13, ensuring the normal operation of all components of the transmission mechanism 100. When the slider 13 moves along the length of the lead screw 11 and away from the anti-shake component 20, the transmission unit 22 can promptly drive the two abutments 23 to move towards the lead screw 11, effectively clamping the lead screw 11 and preventing it from shaking during transmission.

[0050] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects: (1) The anti-vibration component can effectively support the lead screw, prevent the lead screw from vibrating during transmission, effectively improve the transmission accuracy of the transmission mechanism, and reduce the operating noise of the equipment.

[0051] (2) The slider is equipped with a drive unit that can drive the transmission unit to work, which effectively simplifies the control logic of the anti-shake component and improves the operation stability and reliability of the transmission mechanism.

[0052] (3) By switching between racks (i.e., the first rack and the second rack) and gears (i.e., the first gear, the second gear and the third gear), the position of the top can be precisely controlled to meet the needs of different working stages.

[0053] (4) The double racks (i.e., the first rack and the second rack) work together to precisely control the movement of the top and accurately adjust the timing of the top approaching or moving away from the lead screw.

[0054] (5) The rack is detachably connected to the slider, which makes it easy to replace and maintain the rack. The rack specifications can be selected according to actual conditions and needs, thus improving adaptability.

[0055] (6) The transmission shaft and the connecting block work together to accurately achieve the top of the screw to block the lead screw and the slider to avoid it, thus improving the stability of the screw drive.

[0056] (7) The elastic part can provide elasticity, which can effectively enhance the anti-shaking effect of the anti-shaking component, buffer the impact, and extend the service life of each component of the transmission mechanism.

[0057] (8) The limiting groove can prevent the abutment from rotating and stabilize the abutment direction of the abutment, which can effectively enhance the structural stability and accuracy of the anti-shaking component.

[0058] (9) The V-groove can make multi-faceted contact with the lead screw, which can effectively enhance the anti-shaking effect of the anti-shaking component, self-alignment, and improve the working accuracy of the lead screw mechanism.

[0059] (10) The guide section can accurately guide the top, effectively enhance the stability of the anti-shake component, and ensure the stable operation of the transmission mechanism.

[0060] (11) The two abutments are symmetrically arranged on both sides opposite to the lead screw, which can significantly enhance the anti-shake effect of the anti-shake component.

[0061] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0062] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0063] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A transmission mechanism, characterized in that, include: A lead screw assembly (10) includes a lead screw (11), a base (12), and a slider (13). The lead screw (11) is rotatably mounted on the base (12), and the slider (13) is sleeved on the lead screw (11) and can reciprocate along the length direction of the lead screw (11) under the drive of the lead screw (11). The anti-shake component (20) includes a mounting part (21), a transmission part (22), and a stop (23). The mounting part (21) is mounted on the base (12), and the transmission part (22) is rotatably connected to the mounting part (21). The transmission part (22) is configured to drive the stop (23) to move closer to the lead screw (11) to abut against the lead screw (11) during the movement of the slider (13) along the length direction of the lead screw (11), and to drive the stop (23) to move away from the lead screw (11) to avoid the slider (13) during the movement of the slider (13) along the length direction of the lead screw (11).

2. The transmission mechanism according to claim 1, characterized in that, The slider (13) is provided with a driving part (131), and the transmission part (22) includes a driving engagement part (221). The slider (13) moves along the length direction of the lead screw (11) to drive the driving part (131) to drive the driving engagement part (221), so that the abutment (23) moves back and forth along the radial direction of the lead screw (11) and abuts against the lead screw (11) or avoids the slider (13).

3. The transmission mechanism according to claim 2, characterized in that, The driving unit (131) includes a first rack (1311), and the driving engagement unit (221) includes a first gear (2211). The first rack (1311) extends along the length direction of the lead screw (11), and the slider (13) reciprocates along the length direction of the lead screw (11) to drive the first rack (1311) to drive the first gear (2211) to rotate in a first direction and drive the abutment (23) to move away from the lead screw (11) and to rotate in a second direction opposite to the first direction and drive the abutment (23) to move closer to the lead screw (11).

4. The transmission mechanism according to claim 3, characterized in that, The drive unit (131) further includes a second rack (1312), and the drive mating unit (221) further includes a second gear (2212). The second rack (1312) and the first rack (1311) are offset from each other in the radial direction of the lead screw (11), and the second rack (1312) extends in the length direction of the lead screw (11). The slider (13) reciprocates in the length direction of the lead screw (11) to drive the second rack (1312) to drive the second gear (2212) to rotate in the first direction and drive the abutment (23) to move closer to the lead screw (11), and rotate in the second direction and drive the abutment (23) to move away from the lead screw (11).

5. The transmission mechanism according to claim 4, characterized in that, The first rack (1311) and the second rack (1312) are detachably disposed on the slider (13), and the first rack (1311) and the second rack (1312) are located at opposite ends of the slider (13) and extend in opposite directions.

6. The transmission mechanism according to claim 1, characterized in that, The abutment (23) includes a connecting block (231) and an abutment member (232). The transmission part (22) includes a transmission shaft (222). The transmission shaft (222) is rotatably disposed on the mounting part (21) and extends in the radial direction of the lead screw (11). The connecting block (231) is sleeved on the transmission shaft (222) and reciprocates in the radial direction of the lead screw (11) under the drive of the transmission shaft (222) so that the abutment member (232) abuts against the lead screw (11) or avoids the slider (13).

7. The transmission mechanism according to claim 6, characterized in that, The anti-shake component (20) further includes an elastic part (24), the abutment (232) is movably disposed on the connecting block (231) and can reciprocate along the radial direction of the lead screw (11), the elastic part (24) abuts between the connecting block (231) and the abutment (232), and the elastic part is at least used to apply elastic force to the abutment (232) so that the abutment (232) is close to the outer periphery of the lead screw (11).

8. The transmission mechanism according to claim 6, characterized in that, The connecting block (231) is provided with a limiting groove (2311), and the abutment (232) is inserted into the limiting groove (2311). The limiting groove (2311) is at least used to prevent the abutment (232) from rotating relative to the connecting block (231); and / or, The abutment (232) has a V-groove (2321) at one end facing the lead screw (11). When the abutment (232) abuts against the lead screw (11), the inner wall of the V-groove (2321) fits against the outer periphery of the lead screw (11).

9. The transmission mechanism according to claim 1, characterized in that, The anti-shake component (20) also includes a guide (25), which is fixedly connected to the mounting part (21) and extends in the radial direction of the lead screw (11). The abutment (23) is sleeved on the guide (25) and reciprocates in the radial direction of the lead screw (11) under the drive of the transmission part (22).

10. The transmission mechanism according to any one of claims 1 to 9, characterized in that, The abutment (23) includes two abutments, which are symmetrically arranged on opposite sides of the lead screw (11) along the radial direction of the lead screw (11). The transmission part (22) is configured to drive the two abutments (23) to move toward the lead screw (11) to clamp the lead screw (11) during the movement of the slider (13) along the length direction of the lead screw (11), and to drive the two abutments (23) to move away from the lead screw (11) to release the lead screw (11) and avoid the slider (13) during the movement of the slider (13) along the length direction of the lead screw (11).

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