Ball screw raceway contact angle measuring tool and measuring method
By designing a portable ball screw raceway contact angle measurement tool, the combination of measuring balls and Danhong pigments solves the time-consuming and labor-intensive problem of traditional measurement methods, and achieves fast and accurate contact angle measurement, improving work efficiency and reducing labor costs.
Patent Information
- Application Number
- CN202411699730.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-02-25
AI Technical Summary
The traditional ball screw raceway contact angle measurement method is time-consuming and labor-intensive, has low work efficiency, and requires a lot of manpower.
A simple structure and portable ball screw raceway contact angle measurement tool is designed, including operating handles, measuring balls, limit nuts, springs and top wires. By pressing the measuring ball coated with Danhong pigment on the raceway and moving along the tangent direction of the raceway, observe the scale latitude line of the pigment being scraped off, and read the corresponding numerical value to complete the contact angle measurement.
It realizes rapid, convenient and accurate measurement of raceway contact angles, improves measurement efficiency, reduces personnel labor, and is simple in production process and low in manufacturing cost.
Smart Images
Figure CN119509315A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the detection field of numerical control functional components, in particular to a ball screw raceway contact angle measuring tool and a raceway contact angle measuring method using the tool. Background Art
[0002] A ball screw is a transmission mechanism that can convert rotational motion into linear motion. Due to its advantages such as low friction resistance and smooth motion transmission, it is widely used in various industrial equipment and precision instruments.
[0003] At present, as a precision functional component in CNC machine tools, the ball screw transmission pair has an increasingly mature supply chain at home and abroad. When judging the quality of a ball screw, the contact angle of its raceway is one of the key technical indicators, so the raceway contact angle needs to be measured before leaving the factory. Traditionally, manufacturers use special instruments such as projectors or profilers for testing, but such instruments can only test ball screws with relatively small dimensions. When testing large screws, it is necessary to use a sling to lift the large screw to the testing platform, and a special tooling needs to be set up on the testing platform, and then cooperate with the profiler for testing operations. This method is time-consuming and labor-intensive, has low work efficiency, and requires a lot of manpower.
[0004] Therefore, a method or device capable of solving the above problems is now needed. Summary of the invention
[0005] The present invention aims to solve the above-mentioned deficiencies in the prior art and proposes a tool with simple structure, ingenious design, reasonable layout, and the ability to quickly, conveniently and accurately measure the contact angle of a raceway, as well as a method for measuring using the tool.
[0006] The technical solution of the present invention is: a ball screw raceway contact angle measuring tool, characterized in that: the tool includes an operating handle 1, the operating handle 1 is movably connected to a positioning guide block 2, a measuring ball 3 is arranged at the bottom end of the operating handle 1, a plurality of equally spaced measuring scale latitudes 4 are drawn on the measuring ball 3, a limit nut 5 is threadedly connected to the operating handle 1, and a spring 6 is also sleeved on the operating handle 1, the spring 6 is located between the positioning guide block 2 and the limit nut 5, a top screw 7 is threadedly connected to the positioning guide block 2, and the end of the top screw 7 can be pressed against the side wall of the operating handle 1.
[0007] A method for measuring the contact angle of a ball screw raceway, characterized in that the method is performed according to the following steps: First, apply red pigment on the measuring ball 3, making sure that the red pigment covers the area where the measuring scale latitude lines 4 are drawn. Then press the positioning guide block 2 onto the ball screw 8 to be measured, align the measuring ball 3 with the raceway on the ball screw 8, press down the operating handle 1 to make the measuring ball 3 contact the raceway, tighten the top screw 7 when the operating handle 1 cannot move further, and fix the operating handle 1 on the positioning guide block 2. Drag the operating handle 1 to move the measuring ball 3 along the tangent direction of the raceway. After the movement, the red pigment on the measuring ball 3 that contacts the raceway will be scraped off by the inner wall of the raceway, forming a bright line without pigment. Read the value of the measuring scale latitude 4 corresponding to the bright line to complete the contact angle measurement. After the measurement is completed, the top screw 7 is loosened, and under the action of the spring 6, the operating handle 1 and the measuring ball 3 are pushed back to the initial position by the spring 6.
[0008] Compared with the prior art, the present invention has the following advantages: This type of ball screw raceway contact angle measuring tool has a simple structure, ingenious design and reasonable layout. It is designed to be a portable structure for the problems existing in the traditional detection using projectors and profilometers. The operator only needs to hold the operating handle in this tool, press the measuring ball coated with red pigment into the raceway of the ball screw, and then use the top screw to fix the operating handle and the measuring ball, and finally drive the measuring ball to move along the tangent direction of the raceway. By observing the scale latitude where the red pigment is hung, it can be judged whether the contact angle of the measured raceway meets the requirements. It is small in size and easy to operate. Compared with traditional measuring tools and measurement methods, it can effectively improve the efficiency of measurement work and reduce the labor of personnel. At the same time, its manufacturing process is simple and the manufacturing cost is low. Therefore, it can be said that it has many advantages and is particularly suitable for promotion and application in this field. Its market prospects are very broad. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a front view of an embodiment of the present invention.
[0010] Figure 2 is a side view of an embodiment of the present invention.
[0011] Figure 3 Schematic diagram of the working state of an embodiment of the present invention. DETAILED DESCRIPTION
[0012] The specific implementation of the present invention will be described below with reference to the accompanying drawings. Figures 1 to 3As shown: a ball screw raceway contact angle measuring tool, the tool includes an operating handle 1, the operating handle 1 is movably connected to a positioning guide block 2, a measuring ball 3 is arranged at the bottom end of the operating handle 1, a plurality of measuring scale latitudes 4 with equal spacing are drawn on the measuring ball 3, a limit nut 5 is threadedly connected to the operating handle 1, and a spring 6 is also sleeved on the operating handle 1, the spring 6 is located between the positioning guide block 2 and the limit nut 5, a top screw 7 is threadedly connected to the positioning guide block 2, and the end of the top screw 7 can be pressed against the side wall of the operating handle 1.
[0013] When using the ball screw raceway contact angle measurement tool of the embodiment of the present invention to measure the contact angle, the following steps are performed in sequence: First, apply red pigment on the measuring ball 3, making sure that the red pigment covers the area where the measuring scale latitude lines 4 are drawn. Then press the positioning guide block 2 onto the ball screw 8 to be measured, align the measuring ball 3 with the raceway on the ball screw 8, press down the operating handle 1 to make the measuring ball 3 contact with the raceway. When the operating handle 1 cannot move further, it means that the measuring ball 3 has contacted with the raceway on the ball screw 8. At this time, tighten the top screw 7, which is pressed against the operating handle 1 and fixed on the positioning guide block 2. Drag the operating handle 1 to move the measuring ball 3 along the tangent direction of the raceway. After the movement, the red pigment on the measuring ball 3 that contacts the raceway will be scraped off by the inner wall of the raceway, forming a bright line without pigment. Read the value of the measuring scale latitude 4 corresponding to the bright line. The contact angle between the measuring ball 3 and the raceway can be determined by the value, and the contact angle measurement is completed. After the measurement is completed, the top screw 7 is loosened. Under the action of the spring 6, the operating handle 1 and the measuring ball 3 are pushed back to the initial position by the spring 6. The operator can remove the tool from the ball screw 8 and prepare for the next measurement operation.
Claims
1. A ball screw raceway contact angle measuring tool, characterized in that: The tool comprises an operating handle (1), wherein the operating handle (1) is movably connected to a positioning guide block (2), a measuring ball (3) is arranged at the bottom end of the operating handle (1), and a plurality of measuring scale latitudes (4) are drawn on the measuring ball (3) at equal intervals, a limit nut (5) is threadedly connected to the operating handle (1), and a spring (6) is also sleeved on the operating handle (1), wherein the spring (6) is located between the positioning guide block (2) and the limit nut (5), and a top screw (7) is threadedly connected to the positioning guide block (2), and the end of the top screw (7) can be pressed against the side wall of the operating handle (1).
2. A method for measuring the contact angle of a ball screw raceway, characterized in that: The method described is carried out according to the following steps: First, apply red pigment to the measuring ball (3), making sure that the red pigment covers the area with the measuring scale latitude lines (4). Then press the positioning guide block (2) onto the ball screw (8) to be measured, align the measuring ball (3) with the raceway on the ball screw (8), press down the operating handle (1) to make the measuring ball (3) contact the raceway, and tighten the top screw (7) when the operating handle (1) can no longer move, and fix the operating handle (1) on the positioning guide block (2). Drag the operating handle (1) to move the measuring ball (3) along the tangent direction of the raceway. After the movement, the red pigment on the measuring ball (3) in contact with the raceway will be scraped off by the inner wall of the raceway, forming a bright line without pigment. Read the value of the measuring scale latitude (4) corresponding to the bright line to complete the contact angle measurement. After the measurement is completed, the top screw (7) is loosened, and under the action of the spring (6), the operating handle (1) and the measuring ball (3) are pushed back to the initial position by the spring (6).