diff --git a/src/api/routes.py b/src/api/routes.py
index dc4b07c..5ecd799 100644
--- a/src/api/routes.py
+++ b/src/api/routes.py
@@ -485,17 +485,24 @@ async def process_file_core(
             # 网格失败不影响整体流程，只记录日志
             logger.warning(f"网格生成或保存失败，不影响主流程: {mesh_err}")
 
-        # 3. 生成模具型腔（模拟数据）
+        # 3. 生成模具型腔（使用真实的 MoldCavityGenerator）
         await storage_service.update_task_status(
-            db_session, task_id, "processing", 40, "生成模具型腔（模拟）"
+            db_session, task_id, "processing", 40, "生成模具型腔"
         )
 
-        cavity_data = {
-            "cavity_count": 1,
-            "cavity_dimensions": {"length": 100, "width": 80, "height": 50},
-            "runner_system": "cold_runner",
-            "gating_type": "edge_gate"
-        }
+        # 使用 MoldCavityGenerator 生成型腔数据
+        cavity_mesh_data = None
+        try:
+            if shape:
+                # 生成型腔和型芯
+                cavity_result = mold_generator.generate_mold_cavities(shape)
+                
+                # 生成详细的型腔JSON数据（包含网格）
+                cavity_mesh_data = mold_generator.generate_detailed_cavity_json(cavity_result)
+                logger.info(f"型腔网格数据生成完成: {cavity_mesh_data.get('mold_cavities', {}).get('cavity', {}).get('vertex_count', 0)} 顶点")
+        except Exception as cavity_err:
+            logger.warning(f"型腔生成失败，使用简化数据: {cavity_err}")
+            cavity_mesh_data = None
 
         # 4. 生成详细JSON数据（使用计算值）
         await storage_service.update_task_status(
@@ -676,6 +683,16 @@ async def process_file_core(
                 }
             }
         }
+        
+        # 合并型腔网格数据（如果有）
+        if cavity_mesh_data and "mold_cavities" in cavity_mesh_data:
+            if "cavity" in cavity_mesh_data["mold_cavities"]:
+                detailed_cavity_json["mold_cavities"]["cavity"] = cavity_mesh_data["mold_cavities"]["cavity"]
+            if "core" in cavity_mesh_data["mold_cavities"]:
+                detailed_cavity_json["mold_cavities"]["core"] = cavity_mesh_data["mold_cavities"]["core"]
+            if "parting_surface" in cavity_mesh_data["mold_cavities"]:
+                detailed_cavity_json["mold_cavities"]["parting_surface"] = cavity_mesh_data["mold_cavities"]["parting_surface"]
+            logger.info(f"型腔网格数据已合并: cavity {cavity_mesh_data['mold_cavities'].get('cavity', {}).get('vertex_count', 0)} 顶点")
 
         # 5. 生成关键信息（模拟）
         cavity_key_info = detailed_cavity_json["mold_cavities"]["cavity_key_info"]