DONGBEN WORKHOLDING
Built to drawing: what to send, what comes back
Most fixture quotes are slow because the request is incomplete, not because the shop is busy. Here is the full list. Send all five and the number comes back in one working day.
Five inputs
3D model of the part
STEP or X_T, with the material and the blank condition. A 2D drawing is enough for an indicative price but not for production.
Machine table drawing
Table size, T-slot pitch, zero-point or pallet interface, maximum load, spindle taper. This decides how the fixture is located, and it is the input most often missing.
Operation list
Which faces are machined, in what order, with what tool access, and which operations happen on which machine.
Tolerance stack
The dimensions that matter, the datum callouts and the fit class. If everything is ±0.1 mm, say so — it changes the design and the price.
Annual volume and batch size
200 pieces per year and 50,000 pieces per year are two different fixtures, even for the same part.
Send it by email
Attach the model and the table drawing, and state the operation and the annual volume. Files up to 25 MB per email are fine; for larger assemblies send a download link. We reply in English or Russian.
Send a drawing- liuhanxin@lzdb.com.cn
- Phone
- +86 153 8185 6016
What comes back
A DFM note within 3 working days
Datum choice, clamping force, distortion risk, chip evacuation, tool clearance. Free, and it sometimes saves the project before it starts.
A price inside a published band
With the reason stated if it sits at the top: number of stations, hydraulic unit, special clamps, inspection scope.
A 3D fixture model for approval
Before any metal is cut. Clamp sequence and hydraulic schematic included where relevant.
For shipment: the report package
CMM geometry report, pressure test log, trial-cut video, mounting drawing, spare locating pins.
What we will say no to
- A fixture for a part that could be held in a standard vise — we will tell you to buy the vise.
- A tolerance that the machine cannot hold — the fixture cannot fix a spindle that is out.
- A price agreed before the drawing is seen.
- A delivery date that ignores the hydraulic unit lead time.
Send a drawing and get a number
3D model, machine table drawing, the operations and the annual volume — that is enough for a quote within one working day.