261 lines
10 KiB
C++
261 lines
10 KiB
C++
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#pragma once
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/**
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* @file cam_strategies.h
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* @brief 完整 CAM 加工策略 — 粗加工、精加工、钻孔、刀具库、后处理、仿真
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*
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* 在 cam_toolpath.h 的基础刀路（contour/pocket）之上提供：
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* - 层切粗加工 (roughing_toolpath)
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* - 精加工平行/环绕 (finishing_toolpath)
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* - 钻孔循环 G81/G83/G84 (drilling_toolpath)
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* - 刀具结构与刀具库 (Tool, ToolLibrary)
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* - 后处理器框架 (PostProcessor → FanucPost, SiemensPost, HeidenhainPost)
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* - 加工仿真数据生成 (material_removal_simulation)
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*
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* @ingroup core
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*/
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#include "vde/core/point.h"
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#include "vde/core/aabb.h"
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#include "vde/core/cam_toolpath.h"
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#include "vde/mesh/halfedge_mesh.h"
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#include <vector>
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#include <string>
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#include <memory>
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#include <functional>
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#include <optional>
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namespace vde::brep {
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class BrepModel;
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} // namespace vde::brep
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namespace vde::core {
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using core::Point3D;
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using core::Vector3D;
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// ═══════════════════════════════════════════════════════════════════════════
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// 刀具定义
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// ═══════════════════════════════════════════════════════════════════════════
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/// 刀具类型枚举
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enum class ToolType {
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ENDMILL, ///< 平底铣刀
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BALLNOSE, ///< 球头铣刀
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DRILL, ///< 钻头
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FACEMILL, ///< 面铣刀
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TAP ///< 丝锥
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};
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/// 刀具参数结构体
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struct Tool {
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int id = 0; ///< 刀具编号
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std::string name; ///< 刀具名称
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ToolType type = ToolType::ENDMILL; ///< 刀具类型
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double diameter = 10.0; ///< 刀具直径 (mm)
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int flutes = 2; ///< 刃数
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double length = 50.0; ///< 有效刃长 (mm)
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double overall_length = 75.0; ///< 总长 (mm)
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double shank_diameter = 10.0; ///< 柄径 (mm)
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/// 计算推荐转速（基于切削速度 m/min）
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[[nodiscard]] double spindle_rpm(double cutting_speed_m_per_min) const;
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/// 计算推荐进给速度（mm/min，基于每齿进给量 mm/tooth）
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[[nodiscard]] double feed_rate_mm_per_min(double feed_per_tooth) const;
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};
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/// 刀具库 — 管理多个刀具
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class ToolLibrary {
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public:
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/// 添加刀具，返回内部索引
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int add_tool(const Tool& tool);
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/// 按编号查找刀具
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[[nodiscard]] std::optional<Tool> find_tool(int id) const;
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/// 按名称查找刀具
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[[nodiscard]] std::optional<Tool> find_tool(const std::string& name) const;
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/// 列出所有刀具
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[[nodiscard]] const std::vector<Tool>& list_tools() const { return tools_; }
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/// 刀具数量
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[[nodiscard]] size_t size() const { return tools_.size(); }
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private:
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std::vector<Tool> tools_;
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};
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// ═══════════════════════════════════════════════════════════════════════════
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// 加工参数
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// ═══════════════════════════════════════════════════════════════════════════
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/// 粗加工参数
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struct RoughingParams {
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double step_down = 1.0; ///< 每层切深 (mm)
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double step_over = 2.0; ///< 横向步距 (mm)
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double stock_to_leave = 0.5; ///< 留量 (mm)
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double feed_rate = 800.0; ///< 进给速度 (mm/min)
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double safe_z = 10.0; ///< 安全高度 (mm)
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};
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/// 精加工参数
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struct FinishingParams {
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double step_over = 0.5; ///< 行距 (mm)
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double feed_rate = 500.0; ///< 进给速度 (mm/min)
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double safe_z = 10.0; ///< 安全高度 (mm)
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double depth_of_cut = 0.0; ///< 精加工深度 (Z 坐标；0=最终 Z，负=往下)
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};
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/// 精加工策略类型
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enum class FinishingStrategy {
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PARALLEL, ///< 平行刀路 — 等距平行线
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SPIRAL ///< 环绕刀路 — 轮廓向内偏移
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};
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/// 钻孔循环类型
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enum class DrillingCycle {
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G81, ///< 简单钻孔：G81 X.. Y.. Z.. R.. F..
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G83, ///< 深孔啄钻：G83 X.. Y.. Z.. R.. Q.. F..
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G84 ///< 攻丝： G84 X.. Y.. Z.. R.. F..
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};
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/// 钻孔点定义
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struct DrillPoint {
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Point3D position; ///< 孔位坐标
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double depth = -10.0; ///< 钻深（Z 坐标）
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double peck_depth = 2.0; ///< 啄钻每次深度 (G83 用)
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};
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// ═══════════════════════════════════════════════════════════════════════════
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// 后处理器框架
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// ═══════════════════════════════════════════════════════════════════════════
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/// 抽象后处理器基类
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class PostProcessor {
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public:
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virtual ~PostProcessor() = default;
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/// 程序头部（初始化 G-code、换刀等）
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[[nodiscard]] virtual std::string prologue(const Toolpath& tp) const = 0;
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/// 程序尾部（退刀、程序结束）
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[[nodiscard]] virtual std::string epilogue(const Toolpath& tp) const = 0;
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/// 格式化一条 G-code 行
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[[nodiscard]] virtual std::string format_gcode(const PathSegment& seg) const = 0;
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/// 完整后处理：prologue + segments + epilogue
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[[nodiscard]] std::string post_process(const Toolpath& tp) const;
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};
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/// Fanuc 控制器后处理器
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class FanucPost : public PostProcessor {
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public:
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[[nodiscard]] std::string prologue(const Toolpath& tp) const override;
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[[nodiscard]] std::string epilogue(const Toolpath& tp) const override;
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[[nodiscard]] std::string format_gcode(const PathSegment& seg) const override;
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};
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/// Siemens (Sinumerik) 控制器后处理器
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class SiemensPost : public PostProcessor {
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public:
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[[nodiscard]] std::string prologue(const Toolpath& tp) const override;
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[[nodiscard]] std::string epilogue(const Toolpath& tp) const override;
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[[nodiscard]] std::string format_gcode(const PathSegment& seg) const override;
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};
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/// Heidenhain 控制器后处理器
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class HeidenhainPost : public PostProcessor {
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public:
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[[nodiscard]] std::string prologue(const Toolpath& tp) const override;
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[[nodiscard]] std::string epilogue(const Toolpath& tp) const override;
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[[nodiscard]] std::string format_gcode(const PathSegment& seg) const override;
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};
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// ═══════════════════════════════════════════════════════════════════════════
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// 加工策略函数
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// ═══════════════════════════════════════════════════════════════════════════
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/// 层切粗加工刀路
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///
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/// 对 B-Rep 实体进行 Z 层切粗加工：
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/// 1. 计算模型的 Z 范围
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/// 2. 从安全高度开始，以 step_down 步距逐层往下切
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/// 3. 每层将模型轮廓投影到当前 Z 高度，偏移 stock_to_leave 生成刀路
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///
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/// @param body B-Rep 实体模型
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/// @param tool 使用的刀具
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/// @param params 粗加工参数
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/// @return 粗加工刀路
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///
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/// @ingroup core
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[[nodiscard]] Toolpath roughing_toolpath(
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const brep::BrepModel& body,
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const Tool& tool,
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const RoughingParams& params);
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/// 精加工刀路
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///
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/// 对 B-Rep 实体生成精加工刀路，支持两种策略：
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/// - PARALLEL：等距平行线覆盖整个加工面
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/// - SPIRAL：从轮廓向内逐步偏移
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///
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/// @param body B-Rep 实体模型
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/// @param tool 使用的刀具
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/// @param params 精加工参数
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/// @param strategy 加工策略（PARALLEL 或 SPIRAL）
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/// @return 精加工刀路
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///
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/// @ingroup core
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[[nodiscard]] Toolpath finishing_toolpath(
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const brep::BrepModel& body,
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const Tool& tool,
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const FinishingParams& params,
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FinishingStrategy strategy = FinishingStrategy::PARALLEL);
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/// 钻孔循环刀路
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///
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/// 对一组钻孔点生成指定钻孔循环的刀路。
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/// - G81：简单钻孔
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/// - G83：深孔啄钻（带 Q 参数）
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/// - G84：攻丝
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///
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/// @param points 钻孔点列表
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/// @param tool 使用的钻头/丝锥
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/// @param cycle 钻孔循环类型
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/// @param safe_z 安全高度 (mm)
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/// @param feed_rate 进给速度 (mm/min)
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/// @return 钻孔刀路
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///
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/// @ingroup core
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[[nodiscard]] Toolpath drilling_toolpath(
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const std::vector<DrillPoint>& points,
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const Tool& tool,
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DrillingCycle cycle = DrillingCycle::G81,
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double safe_z = 10.0,
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double feed_rate = 200.0);
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// ═══════════════════════════════════════════════════════════════════════════
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// 加工仿真
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// ═══════════════════════════════════════════════════════════════════════════
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/// 加工仿真结果
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struct SimulationResult {
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mesh::HalfedgeMesh remaining_mesh; ///< 加工后剩余材料网格
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mesh::HalfedgeMesh removed_mesh; ///< 被切除材料网格
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double volume_removed = 0.0; ///< 切除体积 (mm³)
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double volume_remaining = 0.0; ///< 剩余体积 (mm³)
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int steps = 0; ///< 仿真步数
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};
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/// 材料去除仿真
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///
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/// 给定毛坯 B-Rep 和刀路，模拟刀具沿刀路切割材料的过程，
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/// 输出剩余材料网格、切除材料网格和体积统计。
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///
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/// @param body 毛坯 B-Rep 实体
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/// @param toolpath 加工刀路
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/// @param tool 使用的刀具（用于确定切削截面）
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/// @return 仿真结果
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///
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/// @ingroup core
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[[nodiscard]] SimulationResult material_removal_simulation(
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const brep::BrepModel& body,
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const Toolpath& toolpath,
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const Tool& tool);
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} // namespace vde::core
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