Method for measuring distance from spindle end face to A-axis center of gear turning machine

Abstract

The invention belongs to the field of machine tool machining, and relates to a method for measuring the distance between the end face of a main shaft of a gear turning machine and the center of an A axis, a distance value is directly calculated by installing a measuring tool and utilizing a trigonometric function relation, complexity and errors of traditional dimension chain calculation are avoided, and measuring precision and machining efficiency are remarkably improved. The method is simple, convenient and rapid to operate, can ensure that the gear turning machine keeps high precision and stability in the working process, thereby improving the product quality, prolonging the service life of the machine tool and reducing the maintenance cost, and has important significance for enhancing the overall performance of the machine tool.

Description

Technical Field

[0001] The invention belongs to the field of machine tool processing and relates to a method for measuring the distance from the main shaft end face of a gear turning machine to the center of an A-axis. Background Art

[0002] In recent years, with the rapid development of gear turning machine equipment, gear turning tools and processing technology, gear turning machines have gradually replaced gear shaping machines and are widely used in the processing of internal gear rings. As a high-precision processing equipment, the processing accuracy of gear turning machines is crucial to product quality. Standard gear turning machines are usually composed of multiple moving axes such as X-axis, Y-axis, Z-axis, A-axis and B-axis, among which the spindle B-axis is the core functional axis of the gear turning machine. During the gear turning process, the spindle B-axis needs to form a certain axis intersection angle with the center line of the C-axis (usually the workpiece axis) to ensure that the tool can be processed according to the predetermined trajectory. At this time, the calibration accuracy of the distance from the spindle end face to the center of the A-axis (ie, the A value) will directly affect the processing accuracy of the gear turning.

[0003] The traditional method of measuring the distance from the spindle end face to the A-axis center is usually to calculate the dimension chain after measuring the value of a single center. However, this method has large errors, mainly because the installation position of the center, the accuracy of the measuring tool, and the complexity of the dimension chain calculation may introduce measurement errors. These errors will be directly transmitted to the processing process, resulting in a decrease in gear cutting accuracy, affecting product quality and processing efficiency.

[0004] Therefore, a more accurate, direct and efficient measurement method is needed to replace the traditional dimensional chain calculation method. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a method for measuring the distance from the spindle end face of a gear turning machine to the center of the A-axis, so as to improve the measurement accuracy and machining efficiency.

[0006] To achieve the above object, the present invention provides the following technical solution: a method for measuring the distance from the end face of a main shaft of a gear cutting machine to the center of an A-axis, comprising the following steps:

[0007] S1, installing a measuring tool on the gear cutting spindle, wherein the measuring tool includes a measuring standard ball;

[0008] S2, locks the gear cutting spindle at any Z position and enables the gear cutting spindle to rotate around the A-axis rotation center;

[0009] S3, set A as the distance from the end face of the gear cutting machine spindle to the center of the A axis, D as the diameter of the measuring standard ball, A1 as the standard size of the measuring tool, α as a certain angle of spindle rotation, B1 as the height of the first standard block when the gear cutting spindle is at 0°, and B2 as the height of the second standard block when the gear cutting spindle is at α°, where A1, D, α, B1, and B2 are known parameters;

[0010] S4, obtain the values ​​of B1 and B2 by measurement;

[0011] S5, according to the trigonometric function relationship, calculate the distance A from the end face of the gear cutting machine spindle to the center of the A axis:

[0012]

[0013] Optionally, the measuring fixture further comprises a device for fixing a measuring standard ball to ensure that the position of the measuring standard ball is stable during the rotation of the gear cutting spindle.

[0014] Optionally, the measuring standard ball is a high-precision sphere, and the error of its diameter D is within the allowable tolerance range.

[0015] Optionally, the first standard block and the second standard block are respectively installed at different positions of the measuring fixture, so as to perform height measurement when the spindle rotates at different angles.

[0016] Optionally, the bottoms of the first standard block and the second standard block are mounted on a gear cutting machine workbench surface of the gear cutting machine workbench.

[0017] The beneficial effects of the present invention are:

[0018] 1) Improve measurement accuracy: By measuring directly on the machine tool, the disassembly of machine tool components and the complex dimension chain calculation process are avoided, thereby reducing the source of error. The use of high-precision measuring fixtures and trigonometric function relationships for calculation can more accurately determine the distance from the spindle end face to the center of the A axis, significantly improving the measurement accuracy.

[0019] 2) Improve processing efficiency: This method does not require cumbersome measurement steps and dimension chain calculations. It is easy and quick to operate, and can significantly shorten the measurement time, thereby improving the overall processing efficiency. At the same time, due to the improvement of measurement accuracy, it also helps to reduce processing rework caused by measurement errors, further improving production efficiency.

[0020] 3) Enhanced machine tool performance: Accurate measurement and calibration can ensure that the gear turning machine maintains high processing accuracy and stability during operation, thereby improving the overall performance of the machine tool. This is of great significance for improving product quality, extending machine tool service life and reducing maintenance costs.

[0021] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0023] Figure 1 It is a measurement schematic diagram of the present invention;

[0024] Figure 2 It is a schematic diagram of the gear skiving spindle of the present invention.

[0025] Reference numerals: gear turning machine workbench 1 , gear turning machine worktable surface 2 , first standard block 3 , second standard block 4 , measuring standard ball 5 , measuring tool 6 . DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0027] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] See also Figure 1-2 , is a method for measuring the distance from the end face of the main shaft of a gear cutting machine to the center of the A axis, comprising the following steps:

[0030] S1, such as Figure 1As shown, the measuring fixture 6 is installed on the gear cutting spindle, and the measuring fixture 6 includes a measuring standard ball 5 and a device for fixing the measuring standard ball 5 to ensure the stable position of the measuring standard ball 5 during the rotation of the gear cutting spindle. The measuring standard ball 5 is a high-precision sphere, and the error of its diameter D is within the allowable tolerance range.

[0031] S2, locks the gear cutting spindle at any Z position and enables the gear cutting spindle to rotate around the A-axis rotation center.

[0032] S3, set parameters. A is the distance from the end face of the gear turning machine spindle to the center of the A axis, D is the diameter of the measuring standard ball, A1 is the standard size of the measuring fixture, α is a certain angle of spindle rotation, B1 is the height of the first standard block 3 when the gear turning spindle is at 0°, and B2 is the height of the second standard block 4 when the gear turning spindle is at α°. Among them, A1, D, α, B1, and B2 are known parameters that can be obtained through preliminary measurement or calibration. The first standard block 3 and the second standard block 4 are respectively installed at different positions of the measuring fixture 6, and the bottom is installed on the gear turning machine worktable 2 of the gear turning machine worktable, which is used to measure the height when the spindle rotates at different angles.

[0033] S4, obtain the values ​​of B1 and B2 by measuring. This can be achieved by high-precision measuring equipment, such as a laser rangefinder.

[0034] S5, according to the trigonometric function relationship, calculate the distance A from the end face of the gear cutting machine spindle to the center of the A axis:

[0035]

[0036] Figure 1 The measurement schematic diagram of the present invention shows the installation positions and measurement process of the measuring fixture 6, the measuring standard ball 5, the first standard block 3 and the second standard block 4. The gear cutting spindle is locked at any Z position and rotates around the A-axis rotation center. By measuring the values ​​of B1 and B2, the value of A can be calculated. Figure 2 The figure is a schematic diagram of the gear turning spindle of the present invention. The figure shows the structure of the gear turning machine worktable 1, the gear turning machine worktable surface 2 and the gear turning spindle. As the core functional axis of the gear turning machine, the gear turning spindle needs to form a certain axis intersection angle with the center line of the C axis during the processing. At this time, the calibration accuracy of the distance A from the spindle end face to the center of the A axis will directly affect the processing accuracy of the gear turning.

[0037] The present invention is easy and quick to operate, and can ensure that the gear cutting machine maintains high precision and stability during operation, thereby improving product quality, extending the service life of the machine tool, and reducing maintenance costs, which is of great significance to enhancing the overall performance of the machine tool.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A method for measuring the distance from the end face of the main shaft of a gear cutting machine to the center of the A axis, characterized in that: The following steps are involved: S1, installing a measuring tool on the gear cutting spindle, wherein the measuring tool includes a measuring standard ball; S2, locks the gear cutting spindle at any Z position and enables the gear cutting spindle to rotate around the A-axis rotation center; S3, set A as the distance from the end face of the gear cutting machine spindle to the center of the A axis, D as the diameter of the measuring standard ball, A1 as the standard size of the measuring tool, α as a certain angle of spindle rotation, B1 as the height of the first standard block when the gear cutting spindle is at 0°, and B2 as the height of the second standard block when the gear cutting spindle is at α°, where A1, D, α, B1, and B2 are known parameters; S4, obtain the values ​​of B1 and B2 by measurement; S5, according to the trigonometric function relationship, calculate the distance A from the end face of the gear cutting machine spindle to the center of the A axis:

2. A method for measuring the distance from the end face of the main shaft of a gear skiving machine to the center of the A-axis according to claim 1, characterized in that: The measuring fixture also includes a device for fixing the measuring standard ball to ensure that the measuring standard ball remains in a stable position during the rotation of the gear cutting spindle.

3. The method for measuring the distance from the end face of the main shaft of a gear skiving machine to the center of the A-axis according to claim 1, characterized in that: The measuring standard ball is a high-precision sphere, and the error of its diameter D is within the allowable tolerance range.

4. The method for measuring the distance from the end face of the main shaft of a gear skiving machine to the center of the A-axis according to claim 1, characterized in that: The first standard block and the second standard block are respectively installed at different positions of the measuring fixture and are used for performing height measurement when the spindle rotates at different angles.

5. The method for measuring the distance from the end face of the main shaft of a gear skiving machine to the center of the A-axis according to claim 1, characterized in that: The bottoms of the first standard block and the second standard block are mounted on the gear cutting machine worktable of the gear cutting machine worktable.

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