x

2026-04-21 15:22:22 +08:00
parent 70cbc456d7
commit 77c4885a40
3 changed files with 114 additions and 55 deletions
@@ -702,15 +702,26 @@ class AluminumFoamMoldGenerator:
            return shape
    
    def _split_cavity_core(self, shape: Any, parting_surface: Any) -> Tuple[Any, Any]:
-        """分离型腔和型芯（优化版）"""
+        """
+        按分型面将模具分为 A 板（定模/型腔侧）和 B 板（动模/型芯侧）
+
+        流程：
+        1. 创建模具块（包围产品的长方体）
+        2. 用分型面水平切出上半块和下半块
+        3. 从上半块减去产品 → A 板（含型腔负形）
+        4. 从下半块减去产品 → B 板（含型芯负形）
+        """
        try:
-            # 获取边界框
+            # 获取产品边界框
            bbox = Bnd_Box()
            brepbndlib_Add(shape, bbox)
            xmin, ymin, zmin, xmax, ymax, zmax = bbox.Get()

-            # 计算模具块尺寸
-            margin = 25  # 铝泡沫模具需要更大余量
+            # 获取分型面 Z 位置（包围盒 Z 中心）
+            parting_z = (zmin + zmax) / 2
+
+            # 模具块尺寸（比产品大一圈余量）
+            margin = 25
            mold_xmin = xmin - margin
            mold_ymin = ymin - margin
            mold_zmin = zmin - margin
@@ -718,28 +729,52 @@ class AluminumFoamMoldGenerator:
            mold_ymax = ymax + margin
            mold_zmax = zmax + margin

-            # 创建模具块
+            # Step 1: 创建整块模具
            mold_block = BRepPrimAPI_MakeBox(
                gp_Pnt(mold_xmin, mold_ymin, mold_zmin),
                gp_Pnt(mold_xmax, mold_ymax, mold_zmax)
            ).Shape()

-            # 型腔 = 模具块 - 产品
-            cavity_operation = BRepAlgoAPI_Cut(mold_block, shape)
-            if cavity_operation.IsDone():
-                cavity = cavity_operation.Shape()
-                logger.info("型腔生成成功")
+            # Step 2: 用分型面切出上下半块
+            # 创建一个足够大的水平切割面（分型面 Z 位置）
+            cutting_plane = gp_Pln(gp_Pnt(0, 0, parting_z), gp_Dir(0, 0, 1))
+            cutting_face = BRepBuilderAPI_MakeFace(cutting_plane).Face()
+
+            # 创建上半空间和下半空间的实体
+            # 上半块: 从 parting_z 到 mold_zmax
+            upper_block = BRepPrimAPI_MakeBox(
+                gp_Pnt(mold_xmin, mold_ymin, parting_z),
+                gp_Pnt(mold_xmax, mold_ymax, mold_zmax)
+            ).Shape()
+
+            # 下半块: 从 mold_zmin 到 parting_z
+            lower_block = BRepPrimAPI_MakeBox(
+                gp_Pnt(mold_xmin, mold_ymin, mold_zmin),
+                gp_Pnt(mold_xmax, mold_ymax, parting_z)
+            ).Shape()
+
+            # Step 3: 从上半块减去产品 → A 板（定模）
+            a_plate_op = BRepAlgoAPI_Cut(upper_block, shape)
+            if a_plate_op.IsDone():
+                a_plate = a_plate_op.Shape()
+                logger.info(f"A板（定模）生成成功: Z={parting_z:.1f} ~ {mold_zmax:.1f}")
            else:
-                logger.warning("型腔布尔运算失败")
-                cavity = mold_block
+                logger.warning("A板布尔减法失败，使用上半块")
+                a_plate = upper_block

-            # 型芯 = 产品形状
-            core = shape
+            # Step 4: 从下半块减去产品 → B 板（动模）
+            b_plate_op = BRepAlgoAPI_Cut(lower_block, shape)
+            if b_plate_op.IsDone():
+                b_plate = b_plate_op.Shape()
+                logger.info(f"B板（动模）生成成功: Z={mold_zmin:.1f} ~ {parting_z:.1f}")
+            else:
+                logger.warning("B板布尔减法失败，使用下半块")
+                b_plate = lower_block

-            return cavity, core
+            return a_plate, b_plate

        except Exception as e:
-            logger.error(f"型腔分离失败: {e}")
+            logger.error(f"分模失败: {e}")
            return shape, shape
    
    def _generate_mold_block(self, cavity: Any, analysis: Dict) -> Any:
@@ -315,10 +315,14 @@ class MoldCavityGenerator:
        return shape

    def _split_cavity_core(self, shape: Any, parting_surface: Any) -> Tuple[Any, Any]:
-        """分离型腔和型芯
+        """
+        按分型面将模具分为 A 板（定模/型腔侧）和 B 板（动模/型芯侧）

-        型腔(Cavity): 模具中形成产品外表面的部分，是产品形状的负形
-        型芯(Core): 模具中形成产品内表面的部分，是产品形状的正形
+        流程：
+        1. 创建模具块（包围产品的长方体）
+        2. 用分型面 Z 位置切出上半块和下半块
+        3. 从上半块减去产品 → A 板（含型腔负形）
+        4. 从下半块减去产品 → B 板（含型芯负形）
        """
        try:
            from OCC.Core.BRepPrimAPI import BRepPrimAPI_MakeBox
@@ -333,6 +337,9 @@ class MoldCavityGenerator:
            brepbndlib.Add(shape, bbox)
            xmin, ymin, zmin, xmax, ymax, zmax = bbox.Get()
            
+            # 获取分型面 Z 位置（包围盒 Z 中心）
+            parting_z = (zmin + zmax) / 2
+            
            # 计算模具块尺寸（比产品大一定余量）
            margin = 20  # mm
            mold_xmin = xmin - margin
@@ -342,29 +349,40 @@ class MoldCavityGenerator:
            mold_ymax = ymax + margin
            mold_zmax = zmax + margin

-            # 创建模具块
-            mold_block = BRepPrimAPI_MakeBox(
-                gp_Pnt(mold_xmin, mold_ymin, mold_zmin),
+            # 上半块: 从 parting_z 到 mold_zmax
+            upper_block = BRepPrimAPI_MakeBox(
+                gp_Pnt(mold_xmin, mold_ymin, parting_z),
                gp_Pnt(mold_xmax, mold_ymax, mold_zmax)
            ).Shape()

-            # 型腔 = 模具块 - 产品（布尔减法）
-            cavity_operation = BRepAlgoAPI_Cut(mold_block, shape)
-            if cavity_operation.IsDone():
-                cavity = cavity_operation.Shape()
-                logger.info("型腔生成成功（模具块减去产品）")
+            # 下半块: 从 mold_zmin 到 parting_z
+            lower_block = BRepPrimAPI_MakeBox(
+                gp_Pnt(mold_xmin, mold_ymin, mold_zmin),
+                gp_Pnt(mold_xmax, mold_ymax, parting_z)
+            ).Shape()
+
+            # A 板（定模）= 上半块 - 产品
+            a_plate_op = BRepAlgoAPI_Cut(upper_block, shape)
+            if a_plate_op.IsDone():
+                a_plate = a_plate_op.Shape()
+                logger.info(f"A板（定模）生成成功: Z={parting_z:.1f} ~ {mold_zmax:.1f}")
            else:
-                logger.warning("型腔布尔运算失败，使用原始形状")
-                cavity = mold_block
+                logger.warning("A板布尔减法失败，使用上半块")
+                a_plate = upper_block

-            # 型芯 = 产品形状本身（收缩补偿后）
-            core = shape
-            logger.info("型芯 = 产品形状")
+            # B 板（动模）= 下半块 - 产品
+            b_plate_op = BRepAlgoAPI_Cut(lower_block, shape)
+            if b_plate_op.IsDone():
+                b_plate = b_plate_op.Shape()
+                logger.info(f"B板（动模）生成成功: Z={mold_zmin:.1f} ~ {parting_z:.1f}")
+            else:
+                logger.warning("B板布尔减法失败，使用下半块")
+                b_plate = lower_block

-            return cavity, core
+            return a_plate, b_plate

        except Exception as e:
-            logger.error(f"型腔分离失败: {e}")
+            logger.error(f"分模失败: {e}")
            return shape, shape

    def _extract_shape_geometry(self, shape: Any, shape_type: str) -> Dict[str, Any]:
@@ -80,7 +80,7 @@ class HTMLGenerator:
                        <strong style="color: #333;">制造要求</strong>
                    </div>
                    <div class="metric">
-                        <span class="metric-label">型腔材料:</span>
+                        <span class="metric-label">模仁材料:</span>
                        <span class="metric-value">{manufacturing_info.get("mold_material", "N/A")}</span>
                    </div>
                    <div class="metric">
@@ -176,7 +176,7 @@ class HTMLGenerator:
            <button onclick="resetView()">重置视图</button>
            <button onclick="toggleWireframe()">切换线框</button>
            <button onclick="toggleProduct()">显示/隐藏产品</button>
-            <button onclick="toggleMold()">显示/隐藏模具</button>
+            <button onclick="toggleMold()">显示/隐藏A/B板</button>
            <button onclick="toggleParting()">显示/隐藏分型面</button>
            <button onclick="togglePointcloud()">显示/隐藏点云</button>
            <button id="splitBtn" onclick="splitMold()" style="background:#FF5722;color:#fff;font-weight:bold;">分模拆分</button>
@@ -278,7 +278,7 @@ class HTMLGenerator:
                scene.add(productMesh);
            }}
            
-            // 创建型腔（上半模 - 蓝色）
+            // 创建A板/定模（蓝色，分型面以上）
            // 尝试从后端数据获取实际几何，否则使用简化Box
            if (cavityData && cavityData.mold_cavities && cavityData.mold_cavities.cavity && cavityData.mold_cavities.cavity.vertices) {{
                const cavityVerts = cavityData.mold_cavities.cavity.vertices;
@@ -324,7 +324,7 @@ class HTMLGenerator:
                createSimpleCavity(width, height, depth);
            }}
            
-            // 创建型芯（下半模 - 橙色）
+            // 创建B板/动模（橙色，分型面以下）
            if (cavityData && cavityData.mold_cavities && cavityData.mold_cavities.core && cavityData.mold_cavities.core.vertices) {{
                const coreVerts = cavityData.mold_cavities.core.vertices;
                const coreFaces = cavityData.mold_cavities.core.faces;
@@ -389,9 +389,11 @@ class HTMLGenerator:
            }}
        }}
        
-        // 创建简化型腔（备用）
+        // 创建简化型腔/A板（定模，分型面以上）— 备用
        function createSimpleCavity(width, height, depth) {{
-            const cavityGeometry = new THREE.BoxGeometry(width * 1.2, height * 0.4, depth * 1.2);
+            // A板：分型面(Z中心)以上的上半模
+            const halfHeight = height / 2;
+            const cavityGeometry = new THREE.BoxGeometry(width * 1.2, depth * 1.2, halfHeight + 10);
            const cavityMaterial = new THREE.MeshPhongMaterial({{
                color: 0x2196F3,
                transparent: true,
@@ -400,7 +402,8 @@ class HTMLGenerator:
            }});
            
            cavityMesh = new THREE.Mesh(cavityGeometry, cavityMaterial);
-            cavityMesh.position.set(0, height * 0.7, 0);
+            // Z轴开模：A板放在分型面以上
+            cavityMesh.position.set(0, 0, halfHeight / 2 + 5);
            scene.add(cavityMesh);
            
            const cavityWireframe = new THREE.WireframeGeometry(cavityGeometry);
@@ -412,9 +415,11 @@ class HTMLGenerator:
            cavityMesh.add(cavityLine);
        }}
        
-        // 创建简化型芯（备用）
+        // 创建简化型芯/B板（动模，分型面以下）— 备用
        function createSimpleCore(width, height, depth) {{
-            const coreGeometry = new THREE.BoxGeometry(width * 1.2, height * 0.4, depth * 1.2);
+            // B板：分型面(Z中心)以下的下半模
+            const halfHeight = height / 2;
+            const coreGeometry = new THREE.BoxGeometry(width * 1.2, depth * 1.2, halfHeight + 10);
            const coreMaterial = new THREE.MeshPhongMaterial({{
                color: 0xFF9800,
                transparent: true,
@@ -423,7 +428,8 @@ class HTMLGenerator:
            }});
            
            coreMesh = new THREE.Mesh(coreGeometry, coreMaterial);
-            coreMesh.position.set(0, -height * 0.7, 0);
+            // Z轴开模：B板放在分型面以下
+            coreMesh.position.set(0, 0, -halfHeight / 2 - 5);
            scene.add(coreMesh);
            
            const coreWireframe = new THREE.WireframeGeometry(coreGeometry);