Adjustable positioning assembly of ball nut shot blasting tooling

Abstract

The utility model discloses a kind of adjustable positioning assembly of ball nut shot blasting tool, it is related to ball nut processing field, including mounting bracket, the inner wall of mounting bracket is all installed with rotating ball.This utility model is tightly pasted by setting positioning cone rod to rubber sleeve, can fill up the tiny gap possibly existing between the two by the elastic property of rubber sleeve, form good sealing and buffering effect on contact surface, effectively reduce the abrasion generated in the working process of positioning cone rod due to vibration, one end of positioning cone rod is set with taper, since the aperture difference in the inside of the both ends of ball nut main body of different specifications, taper structure can be flexibly adapted to these different size apertures, i.e. it can quickly realize the positioning and fixing of ball nut main body, the remodelling efficiency of tool is greatly improved by this fast adaptation characteristic, especially when batch processing different specifications workpieces, can significantly reduce adjustment time, improve overall operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of shot blasting machines for ball nut processing, specifically an adjustable positioning component for a shot blasting fixture for ball nuts. Background Technology

[0002] In modern manufacturing, ball nuts, as a key component of ball screw assemblies, are widely used in various CNC machine tools, automated equipment, and precision mechanical transmission systems. Their excellent transmission performance, such as high transmission efficiency and precise positioning accuracy, plays a decisive role in the overall stability and accuracy of equipment operation. In the manufacturing process of ball nuts, shot blasting is crucial. Shot blasting aims to effectively remove impurities such as oxide scale and rust from the surface of ball nuts by high-speed shot blasting, while improving their surface structure, significantly increasing surface hardness and fatigue strength, thereby comprehensively improving product quality and service life. Traditional positioning components are mostly fixed, which can only adapt to ball nuts of specific sizes and shapes. When facing diverse needs with different sizes, tooling fixtures need to be changed frequently, which undoubtedly greatly increases production costs and preparation time, and seriously restricts the improvement of production efficiency. Therefore, an adjustable positioning component for ball nut shot blasting tooling is needed.

[0003] The existing positioning components of ball nut shot blasting fixtures are not convenient for fixing ball nuts of different sizes during operation. The adjustment range of the positioning structure is limited, and the adjustment method is relatively cumbersome. When dealing with ball nuts of large size differences, it is difficult to quickly adjust to a suitable fixed position. This lack of adaptability means that a lot of time needs to be spent on debugging when changing ball nuts of different sizes, which seriously affects the efficiency of shot blasting operations and makes it difficult to meet the diverse workpiece processing needs of mass production. During shot blasting, the high-speed splashing shot may impact the relatively fragile inner wall parts of the device, causing impact and damage to internal contact parts, shortening the service life of parts, and increasing equipment maintenance costs and failure rate. Therefore, there is an urgent need for an adjustable positioning component for ball nut shot blasting fixtures. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide an adjustable positioning component for a ball nut shot blasting fixture, to solve the problem that existing adjustable positioning components for ball nut shot blasting fixtures are not convenient to adapt to ball nuts of different sizes for fixed positioning. Their positioning structure has a limited adjustment range and the adjustment method is relatively cumbersome. When faced with ball nuts of large size differences, it is difficult to quickly adjust to a suitable fixed position. This lack of adaptability means that a lot of time needs to be spent on debugging when changing ball nuts of different sizes, which seriously affects the efficiency of shot blasting operations and makes it difficult to meet the diverse workpiece processing needs in mass production. During shot blasting operations, high-speed splashing shot may impact the relatively fragile inner wall parts of the device, causing impact and damage to the internal contact parts, shortening the service life of the parts, and increasing the maintenance cost and failure rate of the equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable positioning component for a ball bearing nut shot blasting fixture, comprising a mounting frame, wherein rotating balls are mounted on the inner wall of the mounting frame, and rotating sleeves abut against the outer walls of the rotating balls, a first protective sleeve is welded to one side of the rotating sleeve, a second protective sleeve is mounted on the inner wall of the first protective sleeve, an adjusting sleeve is welded to one side of the second protective sleeve, and a spring abuts against the inner wall of the adjusting sleeve.

[0006] The inner wall of the adjusting sleeve is equipped with a positioning cone rod, and the outer wall of the positioning cone rod is bonded with a rubber sleeve, the outer wall of the rubber sleeve abutting against the main body of the ball nut.

[0007] Preferably, the rotating sleeve is formed into a rotating structure with the mounting frame via a rotating ball, and the rotating sleeve is symmetrically arranged about the central axis of the mounting frame.

[0008] Preferably, the first protective sleeve and the second protective sleeve are movably connected, and the first protective sleeve is symmetrically arranged about the central axis of the mounting bracket.

[0009] Preferably, the adjusting sleeve is threadedly connected to the positioning cone rod, and the outer wall of the adjusting sleeve is hexagonal in shape.

[0010] Preferably, the positioning cone rod is movably connected to the rotating sleeve, and the outer wall of the positioning cone rod is threaded.

[0011] Preferably, the outer wall of the positioning cone rod is in close contact with the inner wall of the rubber sleeve, and the diameter of the outer wall of the positioning cone rod is smaller than the diameter of the inner wall of the rubber sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model uses a rotating sleeve to weld and fix the first protective sleeve. This connection method not only ensures the structural strength between the two, enabling them to withstand the vibration and impact generated during shot blasting, but also lays the foundation for the stable operation of the entire positioning assembly. The second protective sleeve also uses a welding process to fix an adjusting sleeve on one side, allowing the adjusting sleeve to stably perform its adjusting function. The first and second protective sleeves are connected in a movable manner. This connection form provides space for relative movement between the two, allowing the positioning assembly to flexibly adjust its position when facing ball nuts of different specifications, greatly improving the versatility and adaptability of the device. This also relates to the spring on the outer wall of the positioning cone rod. Effective protection is provided. During shot blasting, the high-speed moving projectiles have a strong impact force. The spring is directly exposed and is easily damaged by the direct impact and friction of the projectiles, resulting in surface damage, reduced elasticity, or even breakage. This affects the normal operation of the entire positioning assembly. The first and second protective sleeves work together to form a relatively closed space that encloses the spring. This effectively prevents the projectiles from directly contacting the spring. The movable connection also ensures that the spring's movement is not hindered during extension and retraction. This achieves the protection function without affecting the normal operation of the spring, ensuring the stability and service life of the entire positioning assembly during shot blasting.

[0014] 2. This utility model utilizes a positioning cone to ensure a tight fit with the rubber sleeve. The positioning cone is a core component for precise positioning and stable fixation. This tight fit not only utilizes the elastic properties of the rubber sleeve to fill any small gaps between them but also creates a good seal and cushioning effect on the contact surface. This effectively reduces wear on the positioning cone caused by vibration during operation and enhances the overall structural stability. One end of the positioning cone is tapered. Since the internal bore diameters of different sizes of ball nut bodies vary, the tapered structure can flexibly adapt to these different bore diameters, allowing for quick positioning and fixation of the ball nut body without the need to replace specialized positioning components. This rapid adaptability significantly improves tooling changeover efficiency, especially when processing workpieces of different specifications in batches. It can significantly reduce adjustment time and improve overall work efficiency. At the same time, the positioning cone rod also has an adjustment function, which can adjust the adjusting sleeve according to the actual fixing requirements. During the adjustment process, the movement of the adjusting sleeve will cause the spring to tighten, and the elastic force generated by the spring tightening will act on the positioning cone rod, so that it can form a stable contact fixation on the ball nut body according to the required clamping force. The method of controlling the clamping force by adjusting the spring tension is both flexible and precise, which can meet the requirements of the fixing strength of the ball nut body under different working conditions, further ensuring the stability of the workpiece during shot blasting and avoiding processing errors or safety hazards caused by insecure fixing. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model from a vertical sectional view;

[0017] Figure 3 This is a structural schematic diagram of the positioning cone rod part of this utility model;

[0018] Figure 4 This utility model Figure 2 Enlarged structural diagram of section A in the middle.

[0019] In the diagram: 1. Mounting bracket; 2. Ball bearing; 3. Rotating sleeve; 4. First protective sleeve; 5. Second protective sleeve; 6. Adjusting sleeve; 7. Spring; 8. Positioning cone rod; 9. Rubber sleeve; 10. Ball bearing nut body. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] The embodiments of this utility model will be described below based on its overall structure.

[0022] Please see Figure 1-4An adjustable positioning component for a shot blasting fixture for ball bearing nuts includes a mounting frame 1. Rotary balls 2 are mounted on the inner wall of the mounting frame 1, and rotating sleeves 3 abut against the outer walls of the ball bearings 2. The rotating sleeves 3 form a rotating structure with the mounting frame 1 via the ball bearings 2, and are symmetrically arranged about the central axis of the mounting frame 1. A first protective sleeve 4 is welded to one side of the rotating sleeve 3, and a second protective sleeve 5 is mounted on the inner wall of the first protective sleeve 4. The first and second protective sleeves 4 are movably connected, and the first protective sleeve 4 is symmetrically arranged about the central axis of the mounting frame 1. An adjusting sleeve 6 is welded to one side of the second protective sleeve 5, and a spring 7 abuts against the inner wall of the adjusting sleeve 6. The rotating sleeve 3 serves to weld and fix the first protective sleeve 4. This connection method not only ensures the structural strength between the two components and can withstand the vibration and impact generated during shot blasting, but also lays the foundation for the stable operation of the entire positioning component. The adjusting sleeve 6 is also fixed to one side of the second protective sleeve 5 using a welding process, enabling the adjusting sleeve 6 to stably perform its adjusting function. The protective sleeve 4 and the second protective sleeve 5 are connected in a movable manner. This connection allows for relative movement between the two, enabling the positioning component to flexibly adjust its position when facing ball nuts of different specifications. This greatly improves the versatility and adaptability of the device. It also effectively protects the spring 7 on the outer wall of the positioning cone rod 8. During shot blasting, the high-speed moving projectiles have a strong impact force. The spring 7 is directly exposed and easily subjected to direct impact and friction from the projectiles, leading to surface damage, reduced elasticity, or even breakage, thus affecting the normal operation of the entire positioning component. The first protective sleeve 4 and the second protective sleeve 5, through clever cooperation, form a relatively enclosed space that encloses the spring 7, effectively preventing direct contact between the projectiles and the spring 7. The movable connection also ensures that the movement of the spring 7 is not hindered during its extension and retraction. This achieves the protective function without affecting the normal operation of the spring 7, ensuring the stability and service life of the entire positioning component during shot blasting.

[0023] Please see Figure 1-4An adjustable positioning component for a ball nut shot blasting fixture includes a positioning cone rod 8 installed on the inner wall of an adjusting sleeve 6. The adjusting sleeve 6 and the positioning cone rod 8 are threaded together, and the outer wall of the adjusting sleeve 6 has a hexagonal structure. The positioning cone rod 8 is movably connected to a rotating sleeve 3, and the outer wall of the positioning cone rod 8 is threaded. A rubber sleeve 9 is bonded to the outer wall of the positioning cone rod 8, and the outer wall of the positioning cone rod 8 is in close contact with the inner wall of the rubber sleeve 9. The outer diameter of the positioning cone rod 8 is smaller than the inner diameter of the rubber sleeve 9. The outer wall of the rubber sleeve 9 abuts against the ball nut body 10. By setting the positioning cone rod 8 to achieve a tight fit with the rubber sleeve 9, the positioning cone rod 8 is one of the core components for achieving precise positioning and stable fixation. The positioning cone rod 8 can achieve a tight fit with the rubber sleeve 9. This tight fit can not only fill the possible small gaps between the two by utilizing the elastic properties of the rubber sleeve 9, but also form a good sealing and buffering effect on the contact surface, effectively reducing the wear of the positioning cone rod 8 caused by vibration during operation, while enhancing the stability of the overall structure. One end of the positioning cone rod 8... The tapered design allows for flexible adaptation to the different bore diameters at both ends of the ball nut body 10, eliminating the need to replace specialized positioning components. This rapid adaptation significantly improves tooling changeover efficiency, especially when processing workpieces of different specifications in batches, drastically reducing adjustment time and enhancing overall work efficiency. Furthermore, the positioning tapered rod 8 is adjustable, allowing for adjustment of the adjusting sleeve 6 according to actual fixing requirements. During adjustment, the movement of the adjusting sleeve 6 causes the spring 7 to tighten, and the elastic force generated by the tightened spring 7 reacts to the positioning tapered rod 8, enabling it to provide stable clamping force to the ball nut body 10. Controlling the clamping force by adjusting the spring 7 is both flexible and precise, meeting the requirements for the fixing strength of the ball nut body 10 under different working conditions. This further ensures the stability of the workpiece during shot blasting, preventing processing errors or safety hazards caused by insecure fixing.

[0024] Working principle: In use, the mounting frame 1 is installed at the center of the shot blasting area. The positioning cone rod 8 is glued and fixed to the rubber sleeve 9. The positioning cone rod 8 is brought into contact with the ball nut body 10 and removed. The positioning cone rod 8 is quickly positioned according to the inner diameter of the ball nut body 10. According to the clamping force requirement, the positioning cone rod 8 is threaded to the adjusting sleeve 6 to the specified position so that the adjusting sleeve 6 exerts maximum force on the spring 7. The positioning cone rod 8 is clamped to the ball nut body 10. Finally, the shot blasting impacts the ball nut body 10. The mounting frame 1 and the rotating ball 2 are driven by the force to rotate the rotating sleeve 3, and the ball nut body 10 is fully shot blasted. This completes the use of the device. The contents not described in detail in this manual are existing technologies known to those skilled in the art.

[0025] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. An adjustable positioning assembly for a ball bearing nut shot blasting fixture, comprising a mounting bracket (1), characterized in that: The inner wall of the mounting bracket (1) is equipped with a rotating ball (2), the outer wall of the rotating ball (2) is in contact with a rotating sleeve (3), a first protective sleeve (4) is welded to one side of the rotating sleeve (3), a second protective sleeve (5) is installed on the inner wall of the first protective sleeve (4), an adjusting sleeve (6) is welded to one side of the second protective sleeve (5), and a spring (7) is in contact with the inner wall of the adjusting sleeve (6). The inner wall of the adjusting sleeve (6) is fitted with a positioning cone rod (8), and the outer wall of the positioning cone rod (8) is bonded with a rubber sleeve (9). The outer wall of the rubber sleeve (9) abuts against the ball nut body (10).

2. The adjustable positioning component of a ball nut shot blasting fixture according to claim 1, characterized in that: The rotating sleeve (3) forms a rotating structure with the mounting frame (1) through the rotating ball (2), and the rotating sleeve (3) is symmetrically arranged with respect to the central axis of the mounting frame (1).

3. The adjustable positioning component of a ball nut shot blasting fixture according to claim 1, characterized in that: The first protective sleeve (4) is movably connected to the second protective sleeve (5), and the first protective sleeve (4) is symmetrically arranged about the central axis of the mounting bracket (1).

4. The adjustable positioning component of a ball nut shot blasting fixture according to claim 1, characterized in that: The adjusting sleeve (6) is threadedly connected to the positioning cone rod (8), and the outer wall of the adjusting sleeve (6) is hexagonal.

5. The adjustable positioning component of a ball nut shot blasting fixture according to claim 1, characterized in that: The positioning cone rod (8) is movably connected to the rotating sleeve (3), and the outer wall of the positioning cone rod (8) is threaded.

6. The adjustable positioning component of a ball nut shot blasting fixture according to claim 1, characterized in that: The outer wall of the positioning cone (8) is in close contact with the inner wall of the rubber sleeve (9), and the outer diameter of the positioning cone (8) is smaller than the inner diameter of the rubber sleeve (9).

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