Find HS Code and trade information for 工装夹具

工装夹具

工装夹具 (Gōngzhuāng jiājù) are specialized tools used in manufacturing, particularly in metalworking, to securely hold workpieces during machining, assembly, welding, or other processing operations. They ensure accuracy, repeatability, and safety during production.

Material:

• Cast Iron: Common for its rigidity, vibration damping, and cost-effectiveness. Often used for heavier, more complex fixtures.
• Steel: Offers high strength and durability, suitable for fixtures requiring significant clamping force or precision. Alloy steels are frequently employed for increased hardness and wear resistance.
• Aluminum: Lightweight and corrosion-resistant, used for smaller fixtures or applications where weight is a concern.
• Plastic/Composites: Used for specialized applications requiring non-marring contact with the workpiece or electrical insulation.
• Modular Systems: Often constructed from steel with standardized components for flexibility and reconfigurability.

Purpose:

• Positioning: Precisely locate the workpiece in the desired orientation for processing.
• Clamping: Securely hold the workpiece against movement during the operation.
• Supporting: Provide support to prevent deformation of the workpiece under processing forces.
• Indexing: Allow for multiple orientations of the workpiece within a single fixture.
• Repeatability: Ensure consistent positioning of workpieces for batch production.

Function:

The primary function of a fixture is to define the workpiece’s geometry relative to the machine tool or assembly process. This is achieved through a series of locating elements (pins, V-blocks, surfaces) and clamping mechanisms (clamps, bolts, toggles, vacuum). Fixtures minimize human error and improve process control.

Usage Scenarios:

• Machining: Milling, turning, drilling, grinding, and other metal removal processes.
• Welding: Holding parts in alignment during welding operations.
• Assembly: Positioning and securing components during assembly processes.
• Inspection: Holding parts securely for dimensional inspection.
• 3D Printing/Additive Manufacturing: Holding parts during post-processing operations.

Common Types:

• Plate Fixtures: Simple fixtures consisting of a base plate with locating and clamping elements.
• Box Fixtures: Enclose the workpiece on multiple sides for increased rigidity and stability.
• Angular Fixtures: Designed to hold workpieces at specific angles.
• Indexing Fixtures: Allow for rotating the workpiece to multiple positions.
• Toggle Fixtures: Utilize a toggle mechanism for rapid clamping and unclamping.
• Vacuum Fixtures: Utilize vacuum pressure to hold workpieces with flat surfaces.
• Modular Fixtures: Composed of standardized components that can be assembled in various configurations.
• Custom Fixtures: Designed and built specifically for a particular workpiece or process.
• Quick-Change Fixtures: Designed for rapid setup and changeover, often using standardized components and quick-release mechanisms.

工装夹具通常用于固定工件，以便进行加工、装配、检测等操作。根据其用途和特点，可能涉及多个HS编码。

以下是根据提供的参考资料，与“工装夹具”相关的HS编码：

• 8466208020: 描述为“零件和附件，适用于8456至8465标题的机器的机器，包括工作或工具夹具、自开模头、分度头和其他用于机器的特殊附件；用于手动操作的任何类型的工具的工具夹具：工作夹具：其他用于金属加工机床：夹具和工装”。该编码适用于专门为金属加工机床设计的夹具和工装。基础关税为3.7%，加征关税为25.0%，2025.4.2后加征关税为30.0%，总税率为58.7%。
• 7308400000: 描述为“结构（不包括9406标题的预制建筑）和结构的零件（例如桥梁和桥段、船闸、塔、桁架桅杆、屋顶、屋顶框架、门和窗及其门框、百叶窗、栏杆、柱子和柱子），以及用于结构的铁或钢板、棒材、角材、型材、截面、管材等，为结构准备的设备，用于脚手架、模板、支撑或坑支撑”。如果工装夹具属于支撑或固定结构，则可能适用此编码。基础关税为0.0%，加征关税为25.0%，2025.4.2后加征关税为30.0%，总税率为80.0%。

请注意，具体选择哪个HS编码取决于工装夹具的具体材料、用途和设计。建议根据工装夹具的实际情况，仔细核对参考资料中的描述，并咨询专业的报关行或海关部门，以确保选择正确的HS编码。