Function and interfaces
A robot-joint housing connects rotating and stationary elements with tightly related mounting and support features. Supply the reducer, bearing and motor interfaces, cable envelope, load cases and required positioning performance. Housing manufacturing tolerances must follow the assembly requirement; this page does not assign a universal robot-joint accuracy.
Casting and machining review
Review the part split, bearing seats, flange relationships and machining sequence before tooling. Cast ribs and pockets can manage mass, but transitions and local soundness remain important. Check cable access, coating masks and assembly tool clearance. Validate the completed assembly under the customer-defined load and motion conditions.
Requirements to define
| Interface | Review requirement |
|---|---|
| Bearing and reducer seats | Axis, fit and common datum system |
| Flanges | Position, face relationship and fastening |
| Cable route | Clearance, deburring and assembly access |
| Mass and stiffness | Section design and customer validation |
Example of a project decision
For a hollow joint, check the internal cable path after machining and assembly. Removing external mass does not help if a hidden burr damages the cable during motion.
Information for a quotation
Send the controlled 3D model and drawing, material specification, finish, order quantities and delivery needs. Include mating parts, critical characteristics and required test records. The quotation should identify the casting, machining, finishing and inspection scope, together with any open decisions. Request a drawing review.