A Glass Disc Can Catch Coil Drift That Calipers Miss At Volume
2026-09-22
A spring leaves the coiler looking perfect, then a keyboard switch feels dead, a latch spring backs out under heat, or an automotive connector loses preload after vibration. The drawing was fine. The batch was not. The gap is dimensional drift that handheld gauges miss when the operator is tired and the lot is moving. Spring screening machine closes that gap by moving inspection from a person with a micrometer to a CCD vision cell where every coil is imaged, measured, and judged the same way.
The search-ready phrase is Spring screening machine CCD spring dimension inspection machine German CCD high-resolution camera displacement and visual sensing technology vibration plate aluminum plate transmission belt glass plate stainless steel compression springs cylindrical helical springs torsion springs tension springs coil springs precision springs automatic conveying device automatic assembly device 3C new energy photovoltaics automotive semiconductors from Kunshan Jiexiang Industrial Equipment Jiangsu China.
Can a glass disc catch coil drift that calipers miss at volume, why does a spring need displacement sensing plus optical edge detection, and how does a Kunshan vision house build one spring inspector that shares DNA with screw, sealing ring, FPC, and AOI lines.
Manual gauging is the hidden variable in spring lots
Springs fail quietly. Free length, wire diameter, inner diameter, outer diameter, pitch, grind angle, roundness, rotation angle, and concentricity all move together when one coiler setting creeps.
Manual inspection introduces its own noise:
- fatigue changes the pass/fail line after the first few hundred parts
- thin springs and small springs twist under finger pressure
- torsion springs and tension springs need different reference axes
- borderline coils get a sympathetic "close enough" pass
- throughput collapses exactly when production ramps
A CCD spring dimension inspection machine removes the human from the judgment loop. It measures, displays, and finally judges the result, so part one and part fifty thousand get the same standard.
CCD image control plus displacement sensing
The machine uses a CCD image control system as the main control unit. Displacement sensing and visual sensing work together to drive the detection process according to the parameters of springs with different performance and specifications.
Detection path:
- vibration plate, aluminum plate, or transmission belt moves parts forward
- product transfers onto a glass plate
- glass high light transmittance lets the optics read the coil profile without shadow artifacts
- German CCD high-resolution camera captures the geometry
- software measures size, length, inner diameter, outer diameter, side height, grinding angle, grinding roundness, rotation angle, and concentricity
- system prints qualified or unqualified and routes the part
Because the control unit is software-defined, the same hardware can be retuned for a stainless steel compression spring, a galvanized compression lock spring, a precision coil spring, or a thin torsion spring.
What the screening cell actually accepts
The CCD spring dimension inspection machine is not limited to one spring family.
Screened objects include:
- stainless steel compression springs
- cylindrical helical springs
- hardware accessories springs
- galvanized compression lock springs
- small springs
- precision springs
- thin springs
- compression springs
- torsion springs
- tension springs
- coil springs
- spring springs
- scroll springs
It can be reasonably customized according to the size of the object. That matters for 3C consumer electronics, new energy, photovoltaics, automotive, and semiconductor suppliers, each running different wire diameters, end finishes, and coil counts.
Inspection items that protect downstream assembly
Spring size problems are invisible until the product is closed and tested. The inspector catches them earlier.
Measured items:
- spring size
- spring length
- spring inner diameter
- spring outer diameter
- side height
- spring grinding angle
- spring grinding roundness
- spring rotation angle
- concentricity
If inner diameter drifts, the spring seats wrong in the barrel. If grind angle is off, the end face does not sit flat under load. If concentricity fails, the coil wobbles and the switch feels inconsistent. The machine does not write a report in prose. It records the data, shows the result, and keeps the bad part out of the good tray.
Stable motion, no impact, automatic judgment
Technical behavior of the CCD spring dimension inspection machine:
- high technological content, advanced technology
- high precision, good stability, reliable quality, easy operation
- stable, accurate inspection and assembly
- no vibration, impact, or other undesirable phenomena during the cycle
- data display with automatic qualified or unqualified judgment
- German CCD high-resolution camera for quality reliability and performance
- optional automatic conveying device and automatic assembly device for feeding and unloading automation
The "no vibration, no impact" point is not cosmetic. A shaky transport stage blurs the coil edge and ruins sub-millimeter measurement. The inspection cell is built to stay mechanically quiet while the camera works.
Where it sits inside a Jiexiang automation line
Kunshan Jiexiang Industrial Equipment Co., Ltd. serves 3C consumer electronics, new energy, photovoltaics, automobiles, and semiconductors. The spring screener is one node in a wider vision-automation portfolio.
Adjacent equipment:
- screw detection and screening machine
- hanging screw detection and screening machine
- sealing ring defect detection machine
- chip capacitor and resistor detection and screening machine
- FPC front and back detection line
- 2D AOI TU820 / TU610 inspection equipment
- vision AI deep learning cover inspection machine
- non-standard automatic material feeding machine
- automobile controller automatic assembly line
- photovoltaic optimizer automatic assembly line
- lithium battery PACK automatic assembly line
A spring maker can start with one CCD spring dimension inspection machine and later plug the same vision mindset into feeding, assembly, and AOI stations.
Company backbone behind the machine
Kunshan Jiexiang Industrial Equipment Co., Ltd. was established in 2009 and is based in Kunshan, Suzhou, Jiangsu Province.
The company integrates mechanical, electronic, information, and control technologies for highly customized non-standard automation. Its profile lists 52+ employees, 8+ patents, and 26+ partners, with vision and AI smart manufacturing added across its 2019 to 2024 roadmap.
Service industries:
- 3C consumer electronics
- new energy
- photovoltaics
- automotive
- semiconductors
Mission language from the company page: empowering traditional manufacturing and stimulating unlimited potential. For a spring supplier, that translates into fewer rejected lots, steadier dimensional data, and less dependence on one skilled inspector's mood.
Who specifies a Spring screening machine
Spring manufacturer shipping stainless steel compression springs to automotive tier suppliers.
3C parts maker needing torsion springs and tension springs measured at volume.
New energy and photovoltaic assembly plant protecting connector and latch reliability.
Precision spring house running small springs, thin springs, and coil springs under tight tolerance.
Contract manufacturer wanting automatic conveying, automatic assembly, and qualified/unqualified sorting in one cell.
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