Ball nut clamp for machining ball screw pair
By using a combination fixture design of arc-shaped plates and L-shaped plates, the problem of unstable ball nut positioning in the machining of ball screw pairs was solved, achieving high-precision machining and improved cost-effectiveness.
Patent Information
- Application Number
- CN202423284529.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In the current machining of ball screw assemblies, the ball nut is cylindrical in shape, making it difficult for ordinary fixtures to effectively clamp and limit its position, which affects the machining accuracy and stability.
Two arc-shaped plates are used in conjunction with an L-shaped plate and a pressure plate to achieve initial and further limiting and fixing of the ball nut. The ball nut of different sizes can be adapted by adjusting the first and second lead screws, thereby improving the limiting effect and stability.
This improved the machining accuracy and stability of ball nuts, reduced usage costs, and enhanced the practicality and ease of operation of the device.
Smart Images
Figure CN223573007U_ABST
Abstract
Description
Technical Field
[0001] This utility model mainly relates to the technical field of ball screw assembly processing equipment, specifically a ball nut clamp for processing ball screw assemblies. Background Technology
[0002] A ball screw pair, also known as a ball screw assembly or ball screw assembly, consists of two matching parts: a screw and a nut. It is currently the most precise and commonly used transmission device in transmission machinery. The ball screw pair is a helical transmission element with steel balls as rolling elements between the screw and the nut. It can convert rotary motion into linear motion, or vice versa. Therefore, the ball screw pair is both a transmission component and an element that converts between linear and rotary motion.
[0003] During the machining of ball screw assemblies, the ball nuts need to be clamped and limited. However, since the outer circumference of the ball nut is cylindrical rather than a typical hexagon, ordinary fixtures cannot effectively clamp and limit the ball nuts, thus affecting the machining accuracy of the ball nuts and causing inconvenience in the machining process. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a ball nut fixture for machining ball screw assemblies. This invention utilizes the cooperation of two arc-shaped plates to initially limit and fix the sides of the ball nut. Furthermore, with the cooperation of an L-shaped plate and a pressure plate, the top of the ball nut is further limited and fixed, thereby improving the limiting effect of the ball nut, ensuring its stability during machining, and thus improving machining accuracy. Simultaneously, by adjusting the first and second screws, it can accommodate ball nuts of different sizes and dimensions, thereby increasing the practicality of the device, reducing operating costs, and facilitating the machining of ball nuts.
[0005] To achieve the above objectives, this utility model employs the following technical solution:
[0006] A ball nut fixture for machining ball screw assemblies includes a base, a fixing block mounted on one side of the top surface of the base, and a sliding block slidably mounted on the other side of the top surface of the base. A first screw is threaded onto the sliding block, one end of the first screw is rotatably connected to the fixing block, an arc-shaped plate is mounted on the top surface of both the fixing block and the sliding block, a horizontal plate is mounted on one side of each arc-shaped plate, an L-shaped plate is mounted on the top surface of each horizontal plate, a second screw is threaded onto each L-shaped plate, and a pressure plate is rotatably mounted on the bottom end of each second screw.
[0007] Furthermore, two guide rods distributed front to back are mounted on the top surface of the base via a fixing plate. Both guide rods pass through a sliding block, and the sliding block can slide left and right along the two guide rods.
[0008] Further, the top surface of each pressing plate is provided with two front and rear distributed limiting rods, and each limiting rod penetrates through the corresponding L-shaped plate and can slide up and down along the corresponding L-shaped plate.
[0009] Further, the surface of each guiding rod and each limiting rod is a smooth surface.
[0010] Further, the inner side surface of each arc-shaped plate is provided with an arc-shaped elastic pad.
[0011] Further, the top surface of the base is provided with mounting holes at four corners.
[0012] Further, one end of the first screw rod is provided with a connecting block, and the top end of each second screw rod is provided with a second connecting block.
[0013] Compared with the prior art, the beneficial effects of the present application are:
[0014] 1. The cooperation of the two arc-shaped plates can preliminarily limit and fix the ball nut on both sides, and the cooperation of the L-shaped plate and the pressing plate can further limit and fix the top end of the ball nut, thereby improving the limiting effect of the ball nut, ensuring the stability of the ball nut during processing, and improving the processing precision.
[0015] 2. Meanwhile, under the adjustment of the first screw rod and the second screw rod, the limiting and fixing of ball nuts of different sizes and sizes can be met, thereby improving the practicality of the device, reducing the use cost, and further facilitating the ball nut processing. BRIEF DESCRIPTION OF DRAWINGS
[0016] ATTACHED Figure 1 is a structural schematic view of the present application;
[0017] ATTACHED Figure 2 is Figure 1 the right view;
[0018] ATTACHED Figure 3 is Figure 1 the top view;
[0019] ATTACHED Figure 4 is Figure 1 the front view;
[0020] The reference signs shown in the drawings: 1, base; 2, fixed block; 3, sliding block; 4, first screw rod; 5, arc-shaped plate; 6, horizontal plate; 7, L-shaped plate; 8, second screw rod; 9, pressing plate; 10, fixed plate; 11, guiding rod; 12, limiting rod; 13, arc-shaped elastic pad; 14, mounting hole; 15, first connecting block; 16, second connecting block. DETAILED DESCRIPTION
[0021] The utility model is further illustrated with the drawings and specific embodiments. It should be understood that these embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various alterations or modifications to the utility model, and these equivalent forms also fall within the scope defined by the present application.
[0022] As Figures 1-4 The utility model discloses a ball nut clamp for ball screw pair processing, including base 1, one side fixed block 2 is installed on the top surface of base 1, the other side of base 1 top surface is equipped with the sliding block 3 of sliding, the first screw rod 4 is installed on the sliding block 3, and one end of first screw rod 4 is rotatably connected with fixed block 2, and the top surface of fixed block 2 and sliding block 3 is installed arc plate 5, and one side of each arc plate 5 is installed horizontal plate 6, and the top surface of each horizontal plate 6 is installed L type board 7, and each L type board 7 is installed second screw rod 8 on the screw, and the bottom end of each second screw rod 8 is rotatably installed pressing plate 9.
[0023] Specifically, the top surface of base 1 is installed two front and rear distribution guide rods 11 through fixed plate 10, and two guide rods 11 all pass through sliding block 3, and sliding block 3 can slide along two guide rods 11 left and right. Guide rod 11 has a limiting effect on sliding block 3, can guarantee that sliding block 3 moves stably along base 1 left and right, and improve the stability of sliding block 3.
[0024] Specifically, the top surface of each pressing plate 9 is installed two front and rear distribution limit rods 12, and each limit rod 12 all passes through corresponding L type board 7 and can slide up and down along corresponding L type board 7. Limit rod 12 has a limiting effect on pressing plate 9, can guarantee that pressing plate 9 moves stably up and down along second screw rod 8, and improve the stability of pressing plate 9.
[0025] Specifically, the surface of each guide rod 11 and each limit rod 12 is smooth. The surface of guide rod 11 and limit rod 12 is smooth, reduces the friction force of the surface of guide rod 11 and limit rod 12, to guarantee the smoothness of the movement of sliding block 3 and pressing plate 9.
[0026] Specifically, the inner side surface of two arc plates 5 is installed arc elastic pad 13. Arc pad 13 avoids that ball nut directly contacts with arc plate 5.
[0027] Specifically, the top surface of base 1 is provided with mounting hole 14 at four corners. Through mounting hole 14, base 1 is conveniently installed.
[0028] Specifically, one end of the first screw rod 4 is provided with a connecting block 15, and the top end of each of the second screw rods 8 is provided with a second connecting block 16. By arranging the first connecting block 15 and the second connecting block 16, the operator's hands are prevented from directly contacting the first screw rod 4 and the second screw rod 8, so that the comfort of the operator's hands is improved, and the use is facilitated.
[0029] Working principle:
[0030] In use of the device, first, the ball nut is placed on the right transverse plate 6, the right arc-shaped plate 6 is in contact with one side, then the right second screw rod 8 is rotated, the pressing plate 9 is driven to move downward by the second screw rod 8, the pressing plate 9 is in contact with the top surface of the ball nut and forms a pressing and limiting position on the top surface of the ball nut, and then the first screw rod 4 is rotated, the sliding block 3 is driven to move along the guide rod 11 to the direction of the fixed block 2, so that the left arc-shaped plate 5 is driven to move to the direction of the ball nut, and then the left arc-shaped plate 5 is in contact with the ball nut and cooperates with the right arc-shaped plate 5 to form a clamping and limiting position on the two side surfaces of the ball nut, then the left second screw rod 8 is rotated, and then the left pressing plate 9 is driven to move downward and is in contact with the top surface of the ball nut to form a clamping and limiting position on the other side of the top surface of the ball nut, so that the ball nut is clamped.
[0031] The device can preliminarily limit and fix the ball nut on two sides through the cooperation of the two arc-shaped plates, and can further limit and fix the top end of the ball nut through the cooperation of the L-shaped plate and the pressing plate, so that the limiting effect of the ball nut is improved, the stability of the ball nut during machining is ensured, and the machining precision is improved. Meanwhile, the first screw rod and the second screw rod can meet the limiting and fixing of ball nuts of different sizes and sizes, so that the practicability of the device is improved, the use cost is reduced, and the ball nut machining is facilitated.
[0032] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A ball nut clamp for machining ball screw assemblies, comprising a base (1), characterized in that: A fixing block (2) is installed on one side of the top surface of the base (1), and a sliding block (3) is slidably provided on the other side of the top surface of the base (1). A first lead screw (4) is threaded on the sliding block (3). One end of the first lead screw (4) is rotatably connected to the fixing block (2). An arc plate (5) is installed on the top surface of both the fixing block (2) and the sliding block (3). A horizontal plate (6) is installed on one side of each arc plate (5). An L-shaped plate (7) is installed on the top surface of each horizontal plate (6). A second lead screw (8) is threaded on each L-shaped plate (7). A pressure plate (9) is rotatably installed at the bottom end of each second lead screw (8).
2. The ball nut fixture for machining ball screw assemblies according to claim 1, characterized in that: The top surface of the base (1) is fitted with two guide rods (11) distributed in front and behind, through a fixing plate (10). Both guide rods (11) pass through the sliding block (3), and the sliding block (3) can slide left and right along the two guide rods (11).
3. The ball nut fixture for machining a ball screw assembly according to claim 2, characterized in that: Two limiting rods (12) are installed on the top surface of each pressure plate (9), which are distributed front and back. Each limiting rod (12) passes through the corresponding L-shaped plate (7) and can slide up and down along the corresponding L-shaped plate (7).
4. A ball nut fixture for machining a ball screw assembly according to claim 3, characterized in that: The surfaces of each guide rod (11) and each limiting rod (12) are smooth.
5. A ball nut fixture for machining ball screw assemblies according to claim 1, characterized in that: Both of the arc-shaped plates (5) have arc-shaped elastic pads (13) installed on their inner sides.
6. A ball nut fixture for machining ball screw assemblies according to claim 1, characterized in that: Mounting holes (14) are provided at the four corners of the top surface of the base (1).
7. A ball nut fixture for machining ball screw assemblies according to claim 1, characterized in that: A connecting block (15) is installed at one end of the first lead screw (4), and a second connecting block (16) is installed at the top of each second lead screw (8).