Robot Yoke Housing 7075-T6 Aluminum Deep Pocket Fork Arms 5-Axis One-Setup Machined to 0.008mm
Deep Pocket Fork Yoke Housing
,5-Axis One-Setup Bore Alignment
,NDA Protected Custom Machining
Product Overview
This robot yoke housing is a load-bearing fork component built from 7075-T6 aluminum plate and finished in a single 5-axis setup. Twin fork arms carry matched bearing bores for wrist or elbow articulation, while deep pocket cavities remove mass from the arm tips without thinning the webs that carry bending load. It is specified for humanoid robot joints, collaborative robot wrists, gantry pivots and precision automation linkages where a standard catalogue bracket cannot meet the drawing.
Every unit is machined to your STEP/IGES file against ASME Y14.5 or GB/T 1804-2000 GD&T callouts, with the bore-to-bore relationship controlled by a single datum scheme rather than stacked setups. The result is a fork housing that drops into the assembly without shimming, line-boring or field rework.
How It Is Machined
Process discipline is the reason burr-free fork arms and stable bore geometry repeat order after order. The route below is standard for this part family and can be shortened for prototypes or extended for serial supply.
Precision We Hold
| Characteristic | Capability | Verification |
|---|---|---|
| Bore true position | 0.008 mm | CMM, datum A-B-C scheme |
| Bore roundness / cylindricity | 0.005 mm | CMM form report |
| Fork arm symmetry | 0.02 mm | Single-setup + CMM |
| Flange flatness | 0.01 mm | Granite plate + indicator |
| Surface roughness | Ra 0.2-0.4 µm | Roughness tester, per batch |
| Pocket wall thickness | 0.8 mm minimum | Ultrasonic / section check |
| Thread position | Per drawing, M2-M12 | Thread plug gauge |
Where a drawing calls for tighter values, we quote it as a separate line item after a capability check on your specific geometry. We do not promise microns on features the machine cannot hold.
Non-Standard & Custom Work
There is no fixed catalogue here. Fork span, arm taper, pocket layout, bore size and flange pattern are all driven by your model.
- Fork spans from 60 mm to 500 mm, arm thickness 6-40 mm, bore diameter 8-80 mm
- Materials: 6061-T6, 7075-T6, 2024, 5083, 304/316L stainless, 4140 steel, titanium on request
- Input formats: STEP, IGES, X_T, STL, DXF, PDF drawing with GD&T
- Reverse engineering from a physical sample including 3D scanning and model rebuild
- Assembly-level support: matched sets, pressed bushings, helicoils, dowel pins, laser marking
- Prototype in 3-7 days, then repeat batches from the frozen program
Confidentiality
Project-tagged handling also means quotations, inspection data and shipping documents refer to an internal code instead of your product name, which keeps your design intent out of third-party sight.
Company
Dongguan Changxinda Precision Technology Co., Ltd has been machining custom metal parts since 2008. The shop runs 4-axis and 5-axis machining centers, turn-mill combination lathes, CNC lathes and milling machines, backed by an ISO 9001:2015 quality system and a CMM inspection room. More than 200 customers across medical equipment, robotics, automotive, aerospace, automation, laser, LED, lithium battery and precision instruments are supplied from this plant, with 50-60% of output exported.
Delivery You Can Plan Around
| Stage | Typical Lead Time | What We Commit |
|---|---|---|
| Quote & DFM | Within 24 hours | Feasibility notes on your drawing |
| Prototype / 1-10 pcs | 3-7 days | Photo + FAI before shipment |
| Small batch / 10-100 pcs | 7-14 days | Weekly progress report |
| Mass production / 100+ pcs | 14-30 days | Staged deliveries to your schedule |
- Monthly capacity around 10,000 pieces for this part family, with buffer WIP on repeat orders
- Work split across two machining centers per part number, so one machine down does not stop your batch
- Repeat orders keep the same program, fixture and inspection plan, cycle time drops after the first run
- Shipping by DHL, FedEx, UPS express, air freight or sea freight, EXW / FOB / CIF terms
- Rush service available for line-stop situations, quoted with the real date before we accept it
Key Features
- Single-setup 5-axis finishing of fork arms, bores and mounting flange
- 0.008 mm bore true position with documented CMM results
- Deep pocket weight reduction without thinning load-carrying webs
- 7075-T6 aluminum for high strength-to-weight ratio at the joint
- Black hard anodize 25-40 µm, masking available on bearing bores
- Stress-relieved and semi-finished before the final pass
- NDA-protected handling from quotation to shipment
- Prototype to serial production on the same frozen program
Typical Applications
- Humanoid robot elbow and wrist fork joints
- Collaborative robot arm articulation housings
- Gantry and pick-and-place pivot linkages
- Semiconductor handling robot swing arms
- Medical and laboratory robot joint structures
- Precision automation fixture and indexing pivots
- AGV and mobile robot steering knuckle brackets
FAQ
Q: Will you sign an NDA before I send drawings?
A: Yes. We sign a mutual NDA before any file exchange, and the same applies to RFQ models, 3D scans and sample parts. Send your NDA form or use ours.
Q: What is the smallest quantity for a non-standard yoke housing?
A: One piece. There is no tooling charge, no programming fee and no minimum lot, so a single prototype is a normal order.
Q: How is 0.008 mm true position achieved on a fork part?
A: By cutting both bores and the mounting face in one 5-axis clamping on a stress-relieved blank, then verifying with a CMM program built on the drawing datum scheme. Stacked setups cannot hold this on a fork.
Q: Can you match the material and finish of our existing supplier?
A: Yes. Send the drawing with material and finish specification, or a sample, and we will confirm alloy temper, anodize type, thickness and color against your requirement.
Q: How do you keep delivery stable on repeat orders?
A: The program, fixture and inspection plan are frozen after first article, capacity is reserved per part number, and repeat batches are scheduled with buffer WIP. You get a weekly progress report on every open order.
Q: What do you need to quote?
A: A 2D drawing with tolerances plus a 3D model, quantity per batch, material and finish, and your target date. Quote and DFM feedback come back within 24 hours.
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