🔩 螺栓圆坐标Bolt Circle Calculator

使用说明与常见问题How-to & FAQ

「螺栓圆坐标」是什么？What is the Bolt Circle Calculator tool?

在直径 D 的圆上均布 n 个孔的坐标（从角 0° 起）。本地处理。可设置「直径」、「孔数」、「起始角 °」。Coordinates of n holes on a circle of diameter D from angle 0°. Processed locally. Settings: Diameter, Holes, Start angle °.

如何使用「螺栓圆坐标」？How do I use the Bolt Circle Calculator tool?

在「螺栓圆坐标」中，填写「直径」、「孔数」、「起始角 °」等参数，结果会随输入实时计算并显示在下方。In the Bolt Circle Calculator: Fill in "Diameter", "Holes", "Start angle °"; results are recalculated instantly as you type.

可以直接用于法兰加工吗？Can I use the coordinates directly for a flange?

可以作为孔位参考，但不含公差。坐标以圆心为原点，从起始角开始按 360°/n 均匀分布，单位与输入的直径相同；加工前请按标准或图纸核对。They work as a hole-position reference but include no tolerances. Coordinates are relative to the circle centre, spaced every 360°/n from the start angle, in the same unit as the diameter; check them against the standard or drawing before machining.

能举个计算实例吗？Can you show a worked example?

例如在「螺栓圆坐标」中填 直径 = 100，孔数 = 4，起始角 ° = 0，结果区显示：半径：50；#1：x=50, y=0；#2：x=3.06162×10⁻¹⁵, y=50；#3：x=-50, y=6.12323×10⁻¹⁵；#4：x=-9.18485×10⁻¹⁵, y=-50For example, entering Diameter = 100, Holes = 4, Start angle ° = 0 in the Bolt Circle Calculator gives: Radius: 50; #1: x=50, y=0; #2: x=3.06162×10⁻¹⁵, y=50; #3: x=-50, y=6.12323×10⁻¹⁵; #4: x=-9.18485×10⁻¹⁵, y=-50

哪些输入会被检查？Which inputs are validated?

「螺栓圆坐标」会检查这些输入——「直径」：必须填写，须大于 0；「孔数」：必须填写；「起始角 °」：必须填写；绝对值超过 10¹⁵ 的数也会被拒绝。不符合时结果区显示具体提示，不会给出数字。The Bolt Circle Calculator checks its inputs — "Diameter": required, must be greater than 0; "Holes": required; "Start angle °": required; numbers above 10¹⁵ in absolute value are rejected too. When a value fails, the result area names the problem instead of showing a number.

有哪些选项可以调整？What options can I adjust?

「螺栓圆坐标」的设置：「直径」默认 100；「孔数」默认 6；「起始角 °」默认 0。每次生成结果都按当前设置处理。Settings in the Bolt Circle Calculator — "Diameter" default 100; "Holes" default 6; "Start angle °" default 0. The result always uses the current settings.

计算结果可以用于作业或工程吗？Can I use the results for homework or engineering?

「螺栓圆坐标」使用教科书标准公式（公式写在说明和常见问题中），适合学习和估算核对；涉及安全的工程设计请以规范和实测为准。The Bolt Circle Calculator uses standard textbook formulas (given in the description and FAQ), which is good for learning and checking estimates; for safety-critical engineering follow codes and measured values.

「螺栓圆坐标」免费吗？需要注册吗？Is the Bolt Circle Calculator free? Do I need an account?

「螺栓圆坐标」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Bolt Circle Calculator is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.