Tool for quickly hand-wrapping ball screw

Abstract

This utility model relates to a tooling for quick manual assembly of ball screws, belonging to the field of ball screw assembly technology. It includes a screw, with an assembly tooling assembly at its lower end. A nut, threadedly connected to the screw, is provided between the screw and the assembly tooling assembly. Several steel balls arranged in a ring are located between the upper end of the nut and the lower outer circumference of the screw. The assembly tooling assembly includes an assembly tooling base, and a tooling threaded sleeve, threadedly connected to the nut, is provided between the assembly tooling base and the nut. It features a simple structure, convenient operation, and high efficiency. It allows for rapid and successful assembly of the screw, nut, and steel balls in a non-automated state. Manual assembly using this tooling effectively solves the problem of rapid assembly of products without automated production lines.

Description

Technical Field

[0001] This utility model relates to the field of ball screw assembly technology, specifically to a tooling for quick manual assembly of ball screws. Background Technology

[0002] A ball screw is a precision mechanical component that uses steel balls rolling between a screw and a nut to achieve the conversion between linear and rotary motion. It is widely used in precision systems and is characterized by high efficiency and low friction. In recent years, China's ball screw industry has continuously increased its investment in research and development, optimized production processes, and gradually narrowed the gap with international advanced levels.

[0003] By adopting advanced technologies and design concepts, ball screws are gradually being applied in the automotive manufacturing field, with particularly significant applications in braking and steering systems. Through the transmission of ball screws, energy loss is reduced, and driving NVH is also reduced to a certain extent, thus bringing a better user experience to end drivers.

[0004] As a core component of precision mechanical transmission, the assembly quality of ball screws directly affects the accuracy, lifespan, and reliability of equipment. In the manufacturing and maintenance of ball screws, the "assembly" process (i.e., installing the steel balls into the nut and assembling the nut with the screw) is one of the most technically challenging and prone to problems. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies by providing a tooling for rapid manual assembly of ball screws. It features a simple structure, convenient operation, and high efficiency. It enables the rapid and successful assembly of the screw, nut, and balls in a non-automated environment. This tooling effectively solves the problem of rapid assembly of products without automated production lines.

[0006] The above-mentioned technical problems of this utility model are mainly solved by the following technical solutions: A tooling for quick manual assembly of ball screws includes a screw, with an assembly tooling assembly at its lower end. A nut, threadedly fitted between the screw and the assembly tooling assembly, is provided. Several steel balls arranged in a ring are positioned between the upper end of the nut and the lower outer circumference of the screw. The assembly tooling assembly includes an assembly tooling base, with a tooling threaded sleeve threadedly fitted between the base and the nut.

[0007] Preferably, the assembly tooling base includes an inner threaded sleeve, which is threadedly connected and fixed to the tooling threaded sleeve.

[0008] Preferably, the lower end of the inner threaded sleeve of the base is provided with a base plate that is integrated with the inner threaded sleeve of the base, and the base plate is provided with a ball-guiding cylindrical tube that is coaxial with the base plate and extends into the tooling threaded sleeve.

[0009] Preferably, the upper end of the ball-guiding cylindrical tube is provided with a filling plug that is inserted into and connected to the ball-guiding cylindrical tube and extends into the nut.

[0010] Preferably, the upper end face of the ball-drawing cylindrical tube is higher than the upper end face of the inner threaded sleeve of the base.

[0011] This invention can achieve the following effects: This invention provides a tooling for rapid manual assembly of ball screws, which, compared with existing technologies, features a simple structure, convenient operation, and high efficiency. It enables rapid and successful assembly of the screw, nut, and ball screws in a non-automated state. Manual assembly using this tooling effectively solves the problem of rapid assembly of products without automated production lines.

[0012] High reliability: It completely solves the problem of steel balls easily falling off and getting stuck when manually assembling, with an extremely high success rate.

[0013] High efficiency: The standardized process eliminates the need for operators to concentrate on preventing the balls from falling, allowing them to focus on filling and rotating the balls, which significantly improves assembly speed.

[0014] Low skill requirements: The skill level required for operators is greatly reduced, and they can start working after simple training, thus reducing labor costs.

[0015] Versatility and Protection: By replacing different sizes of tooling threaded sleeves, assembly tooling bases, and ball-drawing cylindrical tubes, it can be adapted to ball screws of different specifications. The entire process is smooth and does not easily scratch the precision raceways of the screw and nut. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a structural schematic diagram of the assembly tooling components in this utility model.

[0018] Figure 3 This is a structural cross-sectional view of the assembly tooling components in this utility model.

[0019] Figure 4 This is a structural schematic diagram of the assembly tooling base in this utility model.

[0020] In the diagram: 1. Lead screw; 2. Steel ball; 3. Nut; 4. Assembly tooling component; 5. Filler plug; 6. Tooling threaded sleeve; 7. Assembly tooling base; 8. Base internal threaded sleeve; 9. Ball guide cylindrical tube; 10. Base plate. Detailed Implementation

[0021] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0022] Example: Figure 1-4 As shown, a tooling for quick manual assembly of ball screws includes a screw 1, a assembly assembly 4 at the lower end of the screw 1, a nut 3 threadedly connected to the screw 1 between the screw 1 and the assembly assembly 4, and two sets of annularly distributed steel balls 2 between the upper end of the nut 3 and the lower outer circle of the screw 1. The assembly assembly 4 includes an assembly base 7, and a tooling threaded sleeve 6 threadedly connected to the nut 3 between the assembly base 7 and the nut 3. The assembly base 7 includes an inner threaded sleeve 8, which is threadedly connected and fixed to the tooling threaded sleeve 6. A base plate 10 integrally formed with the inner threaded sleeve 8 is provided at the lower end of the inner threaded sleeve 8. A ball-guiding cylindrical tube 9, coaxial with the base plate 10 and extending into the tooling threaded sleeve 6, is provided on the base plate 10, with the upper end face of the ball-guiding cylindrical tube 9 higher than the upper end face of the inner threaded sleeve 8. The upper end of the ball-guiding cylindrical tube 9 is provided with a filling plug 5 that is inserted into the ball-guiding cylindrical tube 9 and extends into the nut 3.

[0023] Working principle: The plug 5 fills the cylindrical hole at the top of the ball-drawing cylindrical tube 9. The inner threaded sleeve 8 of the base and the tooling threaded sleeve 6 are threaded together. Rotate the tooling threaded sleeve 6 clockwise until the inner and outer threads make contact and then pause. The nut 3 is placed upside down inside the tooling threaded sleeve 6 at a reasonable direction and angle. At this time, the ball-drawing cylindrical tube 9 is located at the center of the hole in the nut 3. Continue to rotate the tooling threaded sleeve 6 clockwise by a certain arc until the ball-drawing cylindrical tube 9 plays a ball-drawing role and the steel ball 2 does not leak out of the nut and then pause. Begin to put in steel balls 2 of the corresponding specifications, and push a certain number of steel balls 2 into the first circulation ball track of the nut 3 in sequence and evenly. After the first ball track of nut 3 is filled with steel balls 2, continue to slowly rotate nut 3 clockwise until the starting position of the second ball track is reached, then pause. Continue adding steel balls 2 of the corresponding specifications, repeating this cycle until all four ball tracks of nut 3 are filled with steel balls. At this point, all the required number of steel balls 2 have been inserted into nut 3, and the threaded sleeve 6 has been screwed to the bottom of the internal thread of the assembly tooling base 7. Remove the filling plug 5, insert one end of the required lead screw 1 into the cylindrical hole on the ball guide cylindrical tube 9, and then slowly rotate nut 3 counterclockwise. When nut 3 is screwed out of the ball guide cylindrical tube 9, the lead screw ball track enters nut 3 and contacts and engages with the steel balls 2. After continuously rotating nut 3 counterclockwise, nut 3 completely penetrates the lead screw ball track area, at which point the assembly work is complete.

[0024] In summary, this tooling for rapid manual assembly of ball screws features a simple structure, convenient operation, and high efficiency. It enables the rapid and successful assembly of the screw, nut, and balls in a non-automated environment. Manual assembly using this tooling effectively solves the problem of rapid assembly of products in the absence of automated production lines.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] In summary, the above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A tooling for quickly and manually assembling ball screws, characterized in that: The assembly includes a lead screw (1), the lower end of which is provided with a fitting assembly (4), and a nut (3) that is threadedly connected to the lead screw (1) is provided between the lead screw (1) and the fitting assembly (4). The upper end of the nut (3) and the lower outer circle of the lead screw (1) are provided with several steel balls (2) arranged in a ring. The fitting assembly (4) includes a fitting base (7), and a tooling thread sleeve (6) that is threadedly connected to the nut (3) is provided between the fitting base (7) and the nut (3).

2. The tooling for quick manual assembly of ball screws according to claim 1, characterized in that: The assembled tooling base (7) includes an inner threaded sleeve (8), which is threadedly connected and fixed to the tooling threaded sleeve (6).

3. The tooling for quick manual assembly of ball screws according to claim 2, characterized in that: The lower end of the inner threaded sleeve (8) of the base is provided with a base plate (10) that is integrated with the inner threaded sleeve (8). The base plate (10) is provided with a ball-guiding cylindrical tube (9) that is coaxial with the base plate (10) and extends into the tooling threaded sleeve (6).

4. The tooling for quick manual assembly of ball screws according to claim 3, characterized in that: The upper end of the ball-guiding cylindrical tube (9) is provided with a filling plug (5) that is inserted into the ball-guiding cylindrical tube (9) and extends into the nut (3).

5. The tooling for quick manual assembly of ball screws according to claim 3, characterized in that: The upper end face of the ball-drawing cylindrical tube (9) is higher than the upper end face of the inner threaded sleeve (8) of the base.

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