Corner Welding Clamp – 90° CAD Jig for Pipe & Angle Welding
Holding Capacity 500kg | 3D CAD Model + 2D DWG Drawings
This corner welding clamp CAD design gives you a complete 90-degree welding jig for joining pipes and angle profiles into a square corner. Built from steel profiles with galvanized plates and pins, this welding corner jig delivers up to 500kg holding capacity, using a trapezoidal clamping screw with a 19mm hex tip for manual tightening.
01 / Package contents
What's Inside Your Corner Welding Clamp CAD Design
90° Precision Angle
Holds pipes/profiles square during welding
500kg Holding Capacity
Construction steel S235JR frame
Full 3D Inventor Assembly
22 solid parts, fully editable
2D DWG & PDF Drawings
7 sheets, dimensioned
Manual Trapezoidal Screw
19mm hex tip, hand or wrench operated
02 / At a glance
Welding Jig Clamps Design — Technical Specifications
| Holding capacity | up to 500 kg |
| Material | Construction steel S235JR |
| Clamping mechanism | Trapezoidal screw, 19mm hex tip |
| Components | Fixed base, movable frame, galvanized plates & pins |
| CAD software | Inventor 2014+, STEP, STL, DWF |
| 2D drawings | 7 sheets DWG + PDF |
03 / Audience
Welding Corner Clamps Design — Who This Is For
Metal fabricators welding pipe-to-pipe or profile corners
Workshops needing a repeatable 90-degree welding jig
DIY builders wanting precise angle welds without needing a lathe (only the screw tip requires turning)
Anyone comparing against a general-purpose clamp for a dedicated corner tool
04 / The case for it
90 Degree Welding Clamp Plans — Why Choose This Design
Purpose-built for 90-degree corner welding, not a generic clamp
Simple fabrication — only the screw tip needs a lathe
500kg holding capacity for serious fabrication work
Compatible with Inventor, Nx, SolidWorks, plus free tools like SketchUp, DraftSight
Need a general-purpose workshop clamp instead? See our Kant-Twist Clamp CAD Plans for pivoting-jaw clamping on fixtures and jigs, or complex DiY Engineering Design of Wedding Positioner. Also stay familiar with whole Welding & Positioning projects package.
Engineering guide
How a Welding Positioner WorksLearn about rotation, torque, fixture design and welding positioner mechanics.
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