Adjustable pressing plate structure

Abstract

The utility model relates to the technical field of ball screw nut structures, in particular to an adjustable pressing plate structure. The adjustable pressing plate structure comprises a center frame, a pressing plate piece and a mounting nut, the pressing plate piece is connected to the center frame and composed of an arch-shaped frame and a screw located at the top of the arch-shaped frame, the arch-shaped frame is matched with the bent pipe, and one end of the screw penetrates through the center frame and is connected with the mounting nut in a threaded fit mode. The two ends of the center frame are connected to the two ends of the ball screw nut respectively. The arch-shaped frame of the pressing plate piece is matched with the bent pipe in boundary dimension, when the number of bent pipes of the same product is increased, the model of the pressing plate can be directly replaced, the design efficiency is improved, the adaptability is improved, the situation that different angles are repeatedly designed to cope with various bent pipe angles is avoided, and angle adjustment can be easily achieved; the screw is arranged on the pressing plate piece to adapt to different pipe bending heights, and the utilization rate is increased; the pressing plate mounting hole is formed in the center frame, so that the problem that effective threads are damaged due to factors such as the position and the depth of the mounting hole is effectively solved.

Description

Technical Field

[0001] This utility model relates to the technical field of ball screw nut structure, and in particular to an adjustable pressure plate structure. Background Technology

[0002] Ball screw nuts are a type of high-precision, high-rigidity screw and nut mechanism widely used in various fields, especially in mechanical transmission. A bent-tube nut consists of a screw, balls, a bent tube, and a nut. The bent tube connects the two ends of the nut's helical groove, and the balls circulate from one end of the nut to the other through the bent tube, achieving infinite cyclic motion. The bent tube is connected to the nut via a pressure plate.

[0003] In existing technologies, the pressure plate is a single-piece arched structure that can apply radial downward pressure to the bend while maintaining its lateral position without significant movement, ensuring the bend's position is fixed during nut rotation. However, installation requires custom-designed pressure plates based on the bend's installation position and angle, necessitating the design of suitable mounting threaded holes, thus increasing design time. Furthermore, when the bend circulation nut has a small lead, the single-piece pressure plate has limitations in installation space, and the selection of mounting threaded holes must consider factors such as the nut wall thickness and the effective thread position, often requiring custom-made pressure plates, resulting in poor versatility. Summary of the Invention

[0004] The technical problem to be solved by this utility model is: to provide an adjustable pressure plate structure in order to solve the problems existing in the prior art in the background art.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an adjustable pressure plate structure, installed on a ball screw nut, wherein the ball screw nut is provided with a bent tube, the adjustable pressure plate structure includes a central frame, a pressure plate component and a mounting nut, the pressure plate component is connected to the central frame, the pressure plate component is composed of an arched frame and a screw located at the top of the arched frame, the arched frame cooperates with the bent tube, one end of the screw passes through the central frame and is threadedly connected to the mounting nut, and the two ends of the central frame are respectively connected to the two ends of the ball screw nut.

[0006] Furthermore, the arched frame is an integral structure, consisting of an arched section and uprights located at both ends of the arched section.

[0007] Furthermore, the screw is integrally formed at the top center of the arched section.

[0008] Furthermore, one end of the ball screw nut is a mounting flange edge, and a curved mounting plane is provided on the outer wall of one side of the mounting flange edge, with a tail boss formed on one side of the mounting plane.

[0009] Furthermore, a mounting groove is provided on the edge of the mounting flange, the width of the mounting groove is greater than or equal to the width of the center frame, the top of the tail boss has a cutting plane, and fastening threaded holes are provided on both the cutting plane and the mounting groove.

[0010] Furthermore, the center frame has flange mounting holes and tail mounting holes at both ends, and the tail mounting holes on the center frame have downwardly extending adjustment bosses.

[0011] Furthermore, the center frame is provided with a groove that extends from one side of the flange mounting hole to the other end, and the thickness of the groove is greater than or equal to the thickness of the mounting nut.

[0012] Furthermore, the groove is provided with a number of threaded holes that mate with the screw, and the number of threaded holes is the same as the number of bends; the tail mounting hole is also located in the groove.

[0013] The beneficial effects of this utility model are:

[0014] The arched frame of the pressure plate component of this utility model is adapted to the outer dimensions of the bent pipe. When the number of bent pipes of the same product increases, the pressure plate model can be directly changed, thereby improving design efficiency.

[0015] When assembling with bends, the pressure plate component greatly improves adaptability, avoiding the need to repeatedly design different angles to cope with various bend angles, and can easily achieve angle adjustment;

[0016] The screws on the pressure plate can accommodate different bend heights, thus improving the utilization rate of the pressure plate.

[0017] This invention solves the problem of selecting mounting holes for traditional bend-pipe pressure plates by setting a center frame and placing the mounting holes for the pressure plates on the center frame. This eliminates the need to drill holes in the ball screw nut, effectively avoiding damage to the effective threads caused by factors such as the position and depth of the mounting holes. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the adjustable pressure plate structure of this utility model.

[0020] Figure 2 A schematic diagram of the pressure plate component in the adjustable pressure plate structure of this utility model.

[0021] Figure 3 This is a schematic diagram of the central frame in the adjustable pressure plate structure of this utility model.

[0022] Figure 4 This is a schematic diagram of the installation of the adjustable pressure plate structure and the ball screw nut of this utility model.

[0023] Figure 5 yes Figure 4 A schematic diagram of the assembled structure.

[0024] In the diagram: 1. Center frame; 11. Flange mounting hole; 12. Tail mounting hole; 13. Adjusting boss; 14. Groove; 15. Threaded hole; 2. Pressure plate; 21. Arch frame; 211. Arch section; 212. Vertical plate; 22. Screw; 3. Mounting nut; 100. Ball screw nut; 101. Mounting flange edge; 1011. Mounting groove; 102. Mounting plane; 103. Tail boss; 1031. Cutting plane; 104. Fastening threaded hole; 200. Bend. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0026] like Figure 1 As shown, an adjustable pressure plate structure includes a central frame 1, a pressure plate component 2, and a mounting nut 3. The pressure plate component 2 is connected to the central frame 1 and consists of an arched frame 21 and a screw 22 located at the top of the arched frame 21. The arched frame 21 cooperates with the bent tube 200 of the ball screw nut 100. One end of the screw 22 passes through the central frame 1 and is threadedly connected to the mounting nut 3. The two ends of the central frame 1 are respectively connected to the two ends of the ball screw nut 100.

[0027] The arched frame 21 is designed to fit the shape of the bent pipe 200. During the design process, various pressure plate parts 2 can be designed to correspond to the product bent pipe 200 model, making the pressure plate parts 2 standard products, which facilitates the assembly when the number of bent pipes 200 changes.

[0028] like Figure 2 As shown, the arched frame 21 is an integral structure, consisting of an arched section 211 and upright plates 212 located at both ends of the arched section 211. The screw 22 is integrally formed in the middle of the top of the arched section 211. During actual installation, the screw 22 can move up and down to accommodate bends of different installation heights; on the horizontal plane, the screw 22 can rotate. For ball screw nuts 100 with different leads, there is no need to design a separate pressure plate installation direction during installation, resulting in high adaptability. The arched section 211 of the arched frame 21 applies downward pressure to the bend 200 in the vertical direction and provides a certain axial limit to the bend 200 in the vertical normal direction of the inner wall of the arched section 211; the upright plate 212 provides a certain horizontal axial limit to the bend 200 in its vertical direction.

[0029] like Figure 3As shown, the center frame 1 has flange mounting holes 11 and tail mounting holes 12 at its two ends, respectively. The tail mounting hole 12 on the center frame 1 has a downwardly extending adjusting boss 13. The center frame 1 also has a groove 14 extending from one side of the flange mounting hole 11 to the other end. The thickness of the groove 14 is greater than or equal to the thickness of the mounting nut 3. Several threaded holes 15 that mate with the screw 22 are formed within the groove 14. The number of threaded holes 15 is the same as the number of bends 200. The tail mounting hole 12 is also located within the groove 14.

[0030] During installation, considering that the height of the bend 200 may be higher than that of the center frame 1, an adjustment boss 13 is set at the tail mounting hole 12 on the center frame 1. It is installed on the cutting plane 1031 on the top of the tail boss 103. It has vertical movement space based on the pressure plate 2, which facilitates installation and disassembly. The groove 14 is set to hide the mounting nut 3 and avoid structural protrusion.

[0031] like Figure 4 As shown, one end of the ball screw nut 100 is a mounting flange edge 101. A mounting plane 102 for the bent pipe 200 is provided on the outer wall of one side of the mounting flange edge 101. A tail boss 103 is formed on one side of the mounting plane 102. A mounting groove 1011 is provided on the mounting flange edge 101. The width of the mounting groove 1011 is greater than or equal to the width of the center frame 1. The top of the tail boss 103 has a cutting plane 1031. Fastening threaded holes 104 are provided on both the cutting plane 1031 and the mounting groove 1011. During assembly, the screw 22 of the pressure plate 2 is screwed into the threaded hole 15 of the center frame 1. The height of the pressure plate 2 is adjusted by rotating the screw 22 for pre-installation. After the center frame 1 and pressure plate 2 are installed, they are placed at the installation position of the ball screw nut 100. The arched frame 21 cooperates with the bent pipe 200. The arched frame 21 exerts a certain pressure on the bent pipe 200. After adjustment, the center frame 1, along with the pressure plate 2, is installed on the ball screw nut 100, and the installation nut 3 is tightened. The center frame 1 and the ball screw nut 100 are fixed with fastening screws. One fastening screw passes through the flange mounting hole 11 of the center frame 1 and is threaded into the fastening threaded hole 104 on the mounting flange edge 101. Another fastening screw passes through the tail mounting hole 12 of the center frame 1 and is threaded into the fastening threaded hole 104 on the tail boss 103. Figure 5 As shown.

[0032] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An adjustable pressure plate structure, mounted on a ball screw nut (100), wherein the ball screw nut (100) is provided with a bent tube (200), characterized in that: The adjustable pressure plate structure includes a central frame (1), a pressure plate component (2), and a mounting nut (3). The pressure plate component (2) is connected to the central frame (1). The pressure plate component (2) consists of an arched frame (21) and a screw (22) located at the top of the arched frame (21). The arched frame (21) is matched with a bend (200). One end of the screw (22) passes through the central frame (1) and is threadedly connected to the mounting nut (3). The two ends of the central frame (1) are respectively connected to the two ends of the ball screw nut (100).

2. The adjustable pressure plate structure according to claim 1, characterized in that: The arched frame (21) is an integral structure, consisting of an arched section (211) and upright plates (212) located at both ends of the arched section (211).

3. The adjustable pressure plate structure according to claim 2, characterized in that: The screw (22) is integrally formed at the top center of the arched section (211).

4. The adjustable pressure plate structure according to claim 1, characterized in that: One end of the ball screw nut (100) is a mounting flange edge (101), and a mounting plane (102) for a bent pipe (200) is provided on the outer wall of one side of the mounting flange edge (101). A tail boss (103) is formed on one side of the mounting plane (102).

5. The adjustable pressure plate structure according to claim 4, characterized in that: The mounting flange edge (101) is provided with a mounting groove (1011), the width of the mounting groove (1011) is greater than or equal to the width of the center frame (1), the top of the tail boss (103) has a cutting plane (1031), and fastening threaded holes (104) are provided on both the cutting plane (1031) and the mounting groove (1011).

6. The adjustable pressure plate structure according to claim 5, characterized in that: The center frame (1) has flange mounting holes (11) and tail mounting holes (12) at its two ends respectively. The tail mounting hole (12) on the center frame (1) has a downwardly extending adjustment boss (13).

7. The adjustable pressure plate structure according to claim 6, characterized in that: The center frame (1) is provided with a groove (14) that extends from one side of the flange mounting hole (11) to the other end. The thickness of the groove (14) is greater than or equal to the thickness of the mounting nut (3).

8. The adjustable pressure plate structure according to claim 7, characterized in that: The groove (14) is provided with a number of threaded holes (15) that cooperate with the screw (22), and the number of the threaded holes (15) is the same as the number of the bend (200); the tail mounting hole (12) is also located in the groove (14).

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