Custom CNC Milled Fixture Plates

Detailed Description

Workholding becomes easier to repeat when stops, clamps and locating pins return to the same positions each cycle. CNC fixture plates create those locations across a machined base, using threaded hole grids and dedicated dowel features. Workpieces can sit against a pocket or reference edge while a separate clamp secures it for a machining or inspection step.

Tooling plates serve more than one station. Modular hole patterns accept repositioned clamps, while dedicated locating pockets can support a recurring product shape. Milled datum edges and smooth upper faces provide a consistent physical reference across the work area.

Repeatable Workholding Through Dowel And Stop Positions

Dowel pins carry the locating function; threaded grid holes hold clamps and supports. Separating these roles keeps a setup readable when tools are moved or replaced. In inspection fixtures, the same base may carry gauges and workpiece stops rather than cutting equipment.

Available Surface Finishes

• Precision As-Machined: Maintains accurate tooling and locating surfaces.
• Clear Anodizing: Provides corrosion protection for aluminum tooling plates.
• Black Anodizing: Suitable for general industrial fixtures.
• Hard Anodizing: Recommended for frequently used fixture surfaces.
• Electroless Nickel Plating: Available where additional surface hardness is required.
• Grinding Finish: Can be specified for selected precision reference surfaces.

Ground or precision-machined reference regions remain distinct from coated general surfaces, preserving a visible workholding layout around the plate.

Structural & Functional Breakdown

• Threaded Hole Grid: Supports flexible clamps and modular tooling components.
• Dowel Pin Locations: Provide repeatable workpiece or fixture positioning.
• Reference Datum Edges: Establish consistent setup coordinates.
• Machined Locating Pockets: Secure parts with controlled orientation.
• Clamping Interfaces: Allow toggle clamps, stops and custom tooling to be installed.

Grid holes support reconfigurable clamping, while pockets and pins establish a fixed part orientation. Both belong to the same tooling platform.

Key Features

• Precision Hole Positioning: Supports repeatable machining and inspection setups.
• Controlled Flatness: Important for fixture stability and workpiece positioning.
• Custom Grid Patterns: Hole spacing can be produced according to customer requirements.
• Reusable Tooling Design: Suitable for modular and dedicated fixture systems.
• Wear-resistant Finishes: Hard anodizing and plating options extend fixture service life.
• Prototype & Production Fixtures: Suitable for R&D, pilot production and regular manufacturing.

Modular layouts help a fixture accommodate related parts without losing the original machine reference, particularly across repeating production steps.

Applications

• CNC Machining Fixtures
• Assembly Jigs
• Inspection Fixtures
• Welding Fixtures
• Automation Tooling
• Measurement Platforms
• Workholding Systems
• Production Line Tooling

Machining stations use the plate to hold a workpiece against stops while clamps reach in from the surrounding threaded grid. Base construction preserves that setup from one part to the next.

At inspection stations, CNC fixture plates use similar locating features to place a component under a gauge or measuring probe. Reference edges and pins give the fixture a repeatable mechanical starting point.