Follow-up ball screw bracket

Abstract

The utility model discloses a follow-up type ball screw bracket in the technical field of ball screw bracket, including ball screw, the middle part of ball screw is provided with the accompaniment adjustment part, and the both ends of ball screw are all threadedly connected with screw nut, and the both ends of ball screw close to screw nut are installed with rotary connector respectively, and one side of one group of rotary connector still is connected with the adjustment drive part, and the accompaniment adjustment part includes two groups of first bracket seat, and the top of two groups of first bracket seat sets up second bracket seat respectively, and the second bracket seat is connected with the first bracket seat and is connected with adjustment pad, and this bracket passes through the accompaniment adjustment part of setting in the middle part of ball screw, utilizes the cooperation of first bracket seat and second bracket seat, and adjusts the support gap of ball screw with the help of adjustment pad, can follow the linear motion of the rotation of ball screw in real time, forms dynamic support, avoids the droop or deflection of ball screw because of uneven stress, improves overall transmission accuracy and positioning repeatability.

Description

Technical Field

[0001] This utility model relates to the field of ball screw bracket technology, and in particular to a follower-type ball screw bracket. Background Technology

[0002] A ball screw is a mechanical transmission element that converts rotary motion into linear motion, belonging to the category of precision transmission mechanisms. Its basic structure consists of a screw, a nut, and steel balls that circulate between the screw and the nut. Ball screws are widely used in precision mechanical transmissions and automated equipment, typically relying on fixed support seats or bearing housings for limiting and supporting the screw.

[0003] However, during long-term operation of the equipment, due to the long length of the lead screw, uneven force distribution, or large moment of inertia, it is prone to sagging or swaying in the middle, leading to a decrease in transmission accuracy, and even problems such as lead screw bending or nut jamming. This not only increases the wear of mechanical parts, but may also cause unstable equipment operation and affect overall production efficiency. Most existing lead screw support structures are fixed and cannot be adjusted according to the lead screw's operating status, making it difficult to balance high-precision transmission and structural stability. Especially under high-speed, long-stroke, or high-load conditions, fixed support methods are more prone to local stress concentration, further exacerbating the risk of lead screw deformation.

[0004] Therefore, there is an urgent need for a bracket structure that can provide mid-point support and adaptive adjustment during the operation of the lead screw, so as to effectively reduce the risk of lead screw deformation, alleviate frictional impact between the lead screw and nut, and improve the stability, accuracy and service life of the overall transmission system. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Therefore, the purpose of this utility model is to provide a follow-up ball screw bracket, which can solve the problems of existing ball screws sagging and wobbling in the middle due to their long body, uneven force, or large moment of inertia during long-term operation, which in turn leads to a decrease in transmission accuracy, screw bending, nut jamming, and local stress concentration.

[0007] To solve the above technical problems, this utility model provides a follow-up ball screw bracket, which adopts the following technical solution: it includes a ball screw, a supporting adjustment component is provided in the middle of the ball screw, and screw nuts are threaded to both ends of the ball screw. Rotary connectors are respectively installed at the two ends of the ball screw near the screw nuts, and an adjustment drive component is also connected to one side of one set of the rotary connectors. The lifting adjustment component includes two sets of first bracket seats, and a second bracket seat is respectively provided on the top of the two sets of first bracket seats. An adjustment pad is connected between the second bracket seat and the first bracket seat.

[0008] Optionally, an adjusting slider is installed in the middle of each of the two sets of second bracket seats, a bracket guide rail is slidably connected between the two sets of adjusting sliders, and two sets of connecting rods are also installed between the two sets of second bracket seats.

[0009] Optionally, buffer blocks are installed on both sides of the first bracket seat, and a bearing is provided in the middle of the inner side of the first bracket seat. The bearing is matched with the ball screw structure, and a downward baffle is connected to both ends of the first bracket seat near the bearing.

[0010] Optionally, an embedded substrate is installed at the bottom of the bearing bush, and an embedded base groove is provided in the middle of the inner side of the first bracket seat. The embedded base groove matches the structure of the embedded substrate, and the embedded base groove and the embedded substrate are in a snap-fit ​​engagement.

[0011] Optionally, the rotary connector includes connecting bearings mounted at both ends of the ball screw, and bearing seats are also provided on the outer side of the connecting bearings.

[0012] Optionally, the adjustment drive component includes a drive motor, the output end of which is connected to a reducer, and the end of the reducer away from the drive motor is also connected to a coupling, the end of the coupling away from the reducer being connected to a ball screw.

[0013] In summary, this utility model has at least one of the following beneficial effects: 1. The follow-up ball screw bracket designed in this scheme, through the supporting adjustment component set in the middle of the ball screw, utilizes the cooperative cooperation of the first bracket seat and the second bracket seat, and adjusts the support gap of the ball screw with the help of the adjusting shim, can follow the rotation of the ball screw in real time to make linear motion, forming dynamic support, avoiding the ball screw from sagging or wobbling due to uneven force, and improving the overall transmission accuracy and positioning repeatability.

[0014] 2. The follow-up ball screw bracket designed in this scheme can absorb the radial impact force generated by the ball screw during high-speed operation or load changes through the cooperation of the bearing bush and the buffer block on the inner side of the first bracket seat. The bearing bush is fixed and connected at both ends by the pressure baffle, so as to achieve stable installation of the bearing bush in the support and adjustment component.

[0015] 3. The follow-up ball screw bracket designed in this scheme, through the snap-fit ​​structure of the embedded base plate and the embedded base groove at the bottom of the bearing bush, the connection between the bearing and the bearing seat by the rotating connector, and the power transmission of the drive motor, reducer and coupling in the drive component, can ensure the flexible rotation of the ball screw end and the stable power output, so as to realize the reliable operation of the entire bracket structure under complex working conditions such as high speed, long stroke and large load. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the second bracket seat structure of this utility model; Figure 3 This is a schematic diagram of the first bracket seat structure of this utility model; Figure 4 This is a schematic diagram of the rotating connector structure of this utility model; Figure 5 This is a schematic diagram of the adjustment drive component of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Ball screw; 2. Supporting and adjusting component; 21. First bracket seat; 211. Buffer block; 212. Bearing bush; 213. Lower pressure baffle; 214. Embedded base plate; 215. Embedded base groove; 22. Second bracket seat; 221. Adjusting slider; 222. Bracket guide rail; 223. Connecting rod; 23. Adjusting shim; 3. Screw nut; 4. Rotary connector; 41. Connecting bearing; 42. Bearing seat; 5. Adjusting drive component; 51. Drive motor; 52. Reducer; 53. Coupling. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example: Refer to Figures 1 to 5 This utility model provides an embodiment of a follower-type ball screw bracket, including a ball screw 1, a supporting adjustment component 2 disposed in the middle of the ball screw 1, and screw nuts 3 threadedly connected to both ends of the ball screw 1. Rotary connectors 4 are respectively installed at the two ends of the ball screw 1 near the screw nuts 3. One side of one set of rotary connectors 4 is also connected to an adjustment drive component 5. The supporting adjustment component 2 includes two sets of first bracket seats 21, and second bracket seats 22 are respectively disposed on the top of the two sets of first bracket seats 21. An adjusting pad 23 is connected between the second bracket seat 22 and the first bracket seat 21. When the ball screw 1 starts... During rotation, the first bracket seat 21 first provides basic limiting support for the ball screw 1 through the inner bearing bush 212. At the same time, the buffer block 211 absorbs the radial impact force generated by the ball screw 1. The second bracket seat 22, under the action of the adjusting pad 23, drives the adjusting slider 221 to slide along the bracket guide rail 222, and realizes the linkage between the bracket and the overall structure through the connecting rod 223, so that the bracket can follow the rotation of the ball screw 1 in real time to make linear motion, forming dynamic support. The bracket can automatically correct the support position during the movement of the ball screw 1, avoiding the ball screw 1 from sagging or swaying in the middle due to uneven force.

[0021] Adjustable sliders 221 are installed in the middle of both sets of second bracket seats 22. A bracket guide rail 222 is slidably connected between the two sets of adjustable sliders 221. Two sets of connecting rods 223 are also installed between the two sets of second bracket seats 22. By installing adjustable sliders 221 in the middle of the two sets of second bracket seats 22 and slidably connecting the two sets of adjustable sliders 221 through the bracket guide rail 222, the bracket can achieve follow-up support during the linear motion of the ball screw 1, automatically correct the support position, thereby avoiding sagging or wobble in the middle of the ball screw 1 and maintaining the straightness and transmission accuracy of the ball screw 1. At the same time, by installing connecting rods 223 between the two sets of second bracket seats 22, the two bracket structures can be linked as a whole, enhancing the rigidity and stability of the support adjustment component 2, and realizing synchronous support and reliable operation of the bracket under high speed, long stroke and different load conditions.

[0022] Both sides of the first bracket seat 21 are equipped with buffer blocks 211, and a bearing bush 212 is provided in the middle of the inner side of the first bracket seat 21. The bearing bush 212 matches the structure of the ball screw 1. The two ends of the first bracket seat 21 near the bearing bush 212 are also connected with downward baffles 213. By adding buffer blocks 211 on both sides of the first bracket seat 21, the radial impact force generated by the ball screw 1 during its linear rotation can be absorbed, mitigating the impact of vibration on the bracket and the ball screw, and achieving smooth and stable operation of the ball screw 1. By providing the bearing bush 212 in the middle of the inner side of the first bracket seat 21 and matching it with the structure of the ball screw 1, precise limit support can be provided for the ball screw 1, achieving stable bearing of the middle part of the ball screw 1 and ensuring the accuracy of its linear motion. The two ends are connected to the pressure baffle 213, which can limit and fix the end of the bearing 212, so as to realize the stable installation of the bearing 212 in the support adjustment component 2 and ensure the structural reliability of the bracket under long-term operation and high-speed operation. The bottom of the bearing 212 is equipped with an embedded base plate 214. The inner middle of the first bracket seat 21 is provided with an embedded base groove 215. The embedded base groove 215 and the embedded base plate 214 are structurally matched and are engaged. Through the structural design of the engagement between the embedded base groove 215 and the embedded base plate 214, the installation position of the bearing 212 in the support adjustment component 2 can be ensured to be stable and reliable, preventing sliding displacement or offset during the linear motion of the ball screw 1, thereby realizing the stable support and limit of the bearing 212 for the ball screw 1.

[0023] The rotary connector 4 includes connecting bearings 41, which are mounted at both ends of the ball screw 1. Bearing seats 42 are also provided on the outer side of the connecting bearings 41. Through the cooperation of the connecting bearings 41 and the bearing seats 42, the rotary connector 4 ensures that the connecting bearings 41 maintain flexible rotation at the ends of the ball screw 1 during rotation, reducing rotational friction resistance and achieving stable operation of the ball screw 1 under high-speed conditions. The bearing seats 42 fix and support the position of the connecting bearings 41, enhancing the stability of the end support and achieving a reliable connection between the ball screw 1 and the overall structure of the bracket. The adjustment drive component 5 includes a drive motor 5. 1. The output end of the drive motor 51 is connected to a reducer 52. The end of the reducer 52 away from the drive motor 51 is also connected to a coupling 53. The end of the coupling 53 away from the reducer 52 is connected to the ball screw 1. Through the cooperation between the drive motor 51, the reducer 52 and the coupling 53, the adjustment drive component 5 can reasonably adjust the speed and torque of the ball screw 1 while outputting power. This can ensure that the ball screw 1 runs smoothly during linear rotation, realize the reliable support and follow-up adjustment function of the bracket under high speed, long stroke and large load conditions, and meet the operating requirements under different working conditions.

[0024] Working Principle: The follow-up ball screw bracket designed in this scheme mainly achieves stable support and follow-up adjustment of the ball screw 1 during operation through the cooperation between the supporting adjustment component 2, the rotating connector 4, and the adjusting drive component 5. Its core principle is: through the supporting adjustment component 2 located in the middle of the ball screw 1, the support clearance of the screw under running conditions is adjusted by the cooperation of the first bracket seat 21 and the second bracket seat 22, and with the help of the adjusting shim 23. When the ball screw 1 starts to rotate, the first bracket seat 21 first uses the inner bearing bush 212 to support the ball screw. The ball screw 1 provides basic limiting support, while the buffer block 211 absorbs the radial impact force generated by the ball screw 1. Subsequently, the second bracket seat 22 drives the adjusting slider 221 to slide along the bracket guide rail 222 under the action of the adjusting pad 23, and realizes the linkage between the bracket and the overall structure through the connecting rod 223, so that the bracket can follow the rotation of the ball screw 1 in real time to make linear motion, forming dynamic support. Through this sliding cooperation, the bracket can automatically correct the support position during the movement of the ball screw 1, avoiding the ball screw 1 from sagging or swaying in the middle due to uneven force.

[0025] Meanwhile, the downward baffles 213 at both ends of the first bracket seat 21 can further limit the ball screw 1, preventing the ball screw 1 from shaking and dislodging during high-speed operation. The snap-fit ​​structure between the embedded base plate 214 and the embedded base groove 215 at the bottom of the bearing bush 212 can ensure the firmness of the connection between the bearing bush 212 and the first bracket seat 21 and the stability of long-term use, avoiding sliding displacement, thereby ensuring the reliability and durability of the supporting adjustment component 2 during the support process.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A follower-type ball screw bracket, comprising a ball screw (1), characterized in that: The ball screw (1) is provided with a supporting adjustment component (2) in the middle. Both ends of the ball screw (1) are threaded with screw nuts (3). Rotary connectors (4) are installed on both ends of the ball screw (1) near the screw nuts (3). One side of one set of rotary connectors (4) is also connected to an adjustment drive component (5). The lifting adjustment component (2) includes two sets of first bracket seats (21), and the top of the two sets of first bracket seats (21) is respectively provided with a second bracket seat (22), and an adjustment pad (23) is connected between the second bracket seat (22) and the first bracket seat (21).

2. The follower-type ball screw bracket according to claim 1, characterized in that: An adjusting slider (221) is installed in the middle of each of the two sets of second bracket seats (22), and a bracket guide rail (222) is slidably connected between the two sets of adjusting sliders (221). Two sets of connecting rods (223) are also installed between the two sets of second bracket seats (22).

3. The follower-type ball screw bracket according to claim 2, characterized in that: Both sides of the first bracket seat (21) are equipped with buffer blocks (211), and the inner middle of the first bracket seat (21) is provided with a bearing (212). The bearing (212) is matched with the structure of the ball screw (1). The two ends of the first bracket seat (21) near the bearing (212) are also connected with pressure baffles (213).

4. The follower-type ball screw bracket according to claim 3, characterized in that: The bottom of the bearing bush (212) is equipped with an embedded substrate (214), and an embedded base groove (215) is provided in the middle of the inner side of the first bracket seat (21). The embedded base groove (215) is structurally matched with the embedded substrate (214), and the embedded base groove (215) and the embedded substrate (214) are in a snap-fit ​​fit.

5. The follower-type ball screw bracket according to claim 4, characterized in that: The rotating connector (4) includes a connecting bearing (41), which is installed at both ends of the ball screw (1), and a bearing seat (42) is provided on the outside of the connecting bearing (41).

6. The follower-type ball screw bracket according to claim 5, characterized in that: The adjustment drive component (5) includes a drive motor (51), the output end of which is connected to a reducer (52), and the end of the reducer (52) away from the drive motor (51) is also connected to a coupling (53), and the end of the coupling (53) away from the reducer (52) is connected to a ball screw (1).

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