Automatic Screw Driving Machine

Automatic screw driving machine with vibratory or blow feeding, XYZ gantry and constant-torque driver. 1-3s per screw, detects floating, stripped and missed screws.

Category:

Automatic Screw Driving Machines

kouteng@lonturn.com

Hotline:15828477070

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Product overview

The automatic screw driving machine consists of automatic screw feeding, an XYZ three-axis module, a constant-torque electric screwdriver and a locating fixture. It drives screws into the matching holes automatically and checks for floating screws, stripped threads and missed screws. Cycle time is 1–3 s per screw and one machine replaces 2–4 operators on manual driving, making it suitable for chargers, appliance control boxes, LED luminaires and automotive electronics.

Screws are fed either by a vibratory bowl with a direct track, or by blow feeding through a tube to the driver bit, which suits small screws and long travel. The controller stores the coordinates of every hole, so switching to another product is a matter of recalling a program and changing the fixture. Torque is monitored in real time and the machine alarms and stops when the upper or lower limit is exceeded, preventing stripped threads and loose joints.

The machine is built on a welded steel frame with a sheet-metal enclosure and safety light curtain. It can run stand-alone with manual loading, or be integrated into an assembly line with conveyor transfer and MES data upload.

1. Motion and drive specifications

Item	Typical range / notes
Structure	Desktop gantry (standard), multi-station rotary or in-line configuration
Travel (X×Y×Z)	400×300×150 mm standard; larger travels or a cantilever structure available
Drive	Closed-loop stepper or AC servo, ball screw / synchronous belt
Positioning accuracy	±0.02 mm (servo, ball screw); ±0.05 mm (stepper, belt)
Max. moving speed	500–800 mm/s (depends on travel and load)
Screwdriver	Constant-torque electric screwdriver, 0.2–3.0 N·m, torque accuracy ±5%

2. Screw driving process

Item	Typical range / notes
Screw specification	M1.0–M5, length ≤ 25 mm; special bits and tracks available for other screws
Feeding method	Vibratory bowl with direct track, or blow feeding through a tube
Cycle time	1–3 s per screw, depending on pitch, screw length and travel
Driving depth control	Torque control, depth control or torque-plus-depth combined
Quality checks	Floating screw (height detection), stripped thread (torque curve), missed screw (counting / vision), cross threading
Program capacity	100+ programs, coordinates taught by handwheel or imported from CAD

3. Workpieces and capacity

Item	Typical range / notes
Workpieces	Chargers, power adapters, control boxes, LED luminaires, small household appliances, automotive electronics housings
Workpiece size	Up to 400×300 mm (standard); larger fixtures on request
Throughput	Approx. 1,200–2,800 screws per hour in single-station mode
Fixture	Quick-change locating plate, one per product variant
Air supply	0.5–0.7 MPa, dry and filtered
Power supply	AC 220 V, 50/60 Hz, 0.6–1.2 kW

4. Control and configuration

Item	Description
Controller	PLC + 7-inch touch screen, Chinese / English interface
Torque monitoring	Real-time curve, upper and lower limit alarm, data export
Safety	Safety light curtain, protective enclosure, emergency stop
Options	Multi-axis heads, automatic loading, vision positioning, MES interface, screw counting and traceability
Installation	Level floor, no special foundation; machine adjustable feet
Lead time	15–30 days for standard configurations

5. Quick selection guide

Application	Recommended type	Screws per part	Lead time
Small batch, many variants	Desktop single-axis	1–8	15–20 days
Medium volume assembly	Multi-station rotary	4–12	20–30 days
In-line production	Inline with conveyor	2–10	25–35 days
Large housing, long travel	Cantilever gantry	8–30	25–35 days

Note: throughput and lead times are reference values; the actual figures depend on screw count, pitch, part handling and the level of automation.

Customisation and service

We customise the machine around your part: fixture design, screw feeding, multi-head driving, automatic loading and unloading, torque traceability and MES integration. Send us the part drawing, screw specification and target output and our engineers will propose a configuration with a quotation.

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