Work Fixture / Jig

Product Specifications

Technical details and manufacturing context for Work Fixture / Jig

Definition

A work fixture or jig is a precision tooling component used within assembly stations to securely hold workpieces in the correct position and orientation during assembly, welding, machining, or inspection processes. It ensures consistent positioning, improves accuracy, reduces setup time, and enhances worker safety by preventing movement during operations. The fixture typically uses mechanical clamping mechanisms—manual, pneumatic, or hydraulic—to secure the workpiece against locating pins, stops, or surfaces. By constraining the workpiece's degrees of freedom, it provides repeatable positioning, allowing operators or automated systems to perform tasks with precision and efficiency. Common materials include steel and aluminum alloy, with material grades such as 45# carbon steel, 40Cr alloy steel, or 6061-T6 aluminum alloy, depending on application requirements. Key parameters include clamping force (5–50 kN), workpiece capacity (100–500 mm), positioning accuracy (±0.01–±0.05 mm per ISO 230-2), repeatability (±0.005–±0.02 mm per ISO 230-2), operating temperature (-10 to 60°C), operating pressure (0.4–0.8 MPa for pneumatic/hydraulic actuation), electrical rating (24 V DC ±10%), IP rating (IP54–IP65 per IEC 60529), surface hardness (HRC 40–50 per GB/T 230.1), weight (10–50 kg), and footprint (300×300 to 800×800 mm). These values are reference ranges and must be verified with the manufacturer for specific models. The fixture is designed for use in machinery and equipment manufacturing, and its selection depends on workpiece geometry, process forces, and required accuracy. Always confirm model-specific values and standards with the legal manufacturer or supplier before procurement.

Working Principle

The fixture/jig operates by using mechanical clamping mechanisms—manual, pneumatic, or hydraulic—to secure the workpiece against locating pins, stops, or surfaces. It constrains the workpiece's degrees of freedom, ensuring repeatable positioning. The clamping force (5–50 kN) holds the workpiece firmly during operations, while locating elements define the reference points. The design allows for quick loading and unloading, reducing setup time. For pneumatic or hydraulic actuation, operating pressure ranges from 0.4 to 0.8 MPa. The fixture's accuracy and repeatability are critical for consistent assembly quality. It may include sensors or actuators, requiring a 24 V DC electrical supply. The fixture is typically mounted on a machine table with a footprint of 300×300 to 800×800 mm. Proper maintenance, such as checking for wear and cleaning, ensures long service life. Failure to maintain clamping force or alignment can lead to workpiece movement and quality issues.

Common Materials

Steel, Aluminum alloy

Technical Parameters

Parameter	Typical range	Notes & selection driver
Clamping Force	5–50 kN	Required to hold workpiece securely during machining
Workpiece Capacity	100–500 mm	Max workpiece dimensions the fixture can accommodate
Positioning Accuracy	±0.01–±0.05 mm	Critical for repeatable assembly precisionISO 230-2
Repeatability	±0.005–±0.02 mm	Ensures consistent positioning over cyclesISO 230-2
Operating Temperature	-10–60 °C	Material stability and seal performance
Operating Pressure	0.4–0.8 MPa	For pneumatic or hydraulic actuation
Electrical Rating	24 ±10% V DC	For sensors or actuators if applicable
IP Rating	IP54–IP65	Protection against dust and water ingressIEC 60529
Material Grade	45# / 40Cr / 6061-T6	Steel or aluminum alloy for durability and weightGB/T 699, GB/T 3077, GB/T 3190
Surface Hardness	HRC 40–50	Wear resistance for long service lifeGB/T 230.1
Weight	10–50 kg	Affects handling and machine load
Footprint	300×300–800×800 mm	Base dimensions for machine table fit

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Base Plate Part
Provides structural foundation and mounting surface for all fixture components

Material: Steel
Locating Pins Part
Precisely position the workpiece by engaging with holes or edges

Material: Hardened steel
Clamping Mechanism
Secures the workpiece against locating features during assembly operations

Material: Steel
Support Blocks Part
Provide additional support and prevent workpiece deflection

Material: Steel or aluminum
Sensors Optional
Confirm the workpiece is present and the clamps are actually closed before the operation starts.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Work Fixture / Jig.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Assembly Station

View system integration details

Manufacturers of Work Fixture / Jig

Manufacturer profiles associated with Work Fixture / Jig.

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Frequently Asked Questions

What is the typical clamping force range for a work fixture?

The clamping force typically ranges from 5 to 50 kN, depending on the model and application. The required force depends on the workpiece size, material, and process forces. Always verify the specific value with the manufacturer.

What materials are commonly used for work fixtures?

Common materials include steel and aluminum alloy. Specific grades may include 45# carbon steel, 40Cr alloy steel, or 6061-T6 aluminum alloy, as listed in the reference data. The choice depends on durability, weight, and cost requirements.

What is the positioning accuracy of a work fixture?

Positioning accuracy is typically ±0.01 to ±0.05 mm, as per ISO 230-2. This ensures precise placement of the workpiece. However, actual accuracy may vary by model and must be confirmed with the manufacturer.

How should I verify the IP rating of a work fixture?

The IP rating indicates protection against dust and water ingress. Reference values are IP54 to IP65 per IEC 60529. Check the product datasheet or consult the manufacturer to confirm the exact rating for your specific model.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	0 to 500 psi
other spec:	Workpiece weight capacity: 0-1000 kg
temperature:	-20°C to 150°C

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards