Press
What's new & Exhibitions
On automated production lines for switches and sockets, the screw-fastening process—though fundamental—serves as a critical link that determines both the stability of the finished product and the overall production cycle time. Faced with a dazzling array of options on the market—including single-axis, multi-axis, and even vision-enabled screw-fastening machines—manufacturers often find themselves in a "selection dilemma": Is a higher number of axes always better? Is the "vision function" merely an overpriced gimmick?
I. The Axis Count Debate: Compatibility Is King
The "axis count" of a screw-fastening machine determines its operational efficiency and coverage area per cycle. In the field of low-voltage electrical appliances, common choices include:
Single-Axis (Single-Head) Screw-Fastening Machines:
Features: Simple structure, lowest cost, and extremely rapid setup/debugging.
Applicable Scenarios:Products with a single screw location, or use as a supplementary unit within a flexible production line.
Dual-Axis / Triple-Axis / Quad-Axis Screw-Fastening Machines:
Features:Simultaneous fastening across multiple points, resulting in a multiplicative increase in efficiency.
Applicable Scenarios:Products with relatively fixed and regularly distributed screw locations, such as switch backboxes or socket faceplates. For example, standard "Type 86" switch backboxes are typically fastened simultaneously using dual-axis or quad-axis configurations; this represents the mainstream solution in the industry today for manufacturers seeking high cost-effectiveness.
Six-Axis and Multi-Axis Screw-Fastening Machines:
Features:Highly integrated systems, suitable for assembly tasks requiring extremely high screw density.
Applicable Scenarios:Contactors or relays with complex internal structures, or specialized workstations requiring the simultaneous fastening of screws of multiple specifications and orientations in a single operation.
II. Vision Functionality: From "Blind Fastening" to "Precise Alignment"
Whether or not a machine includes vision functionality (CCD positioning) serves as a key differentiator in the selection process for 2026:
Non-Vision (Mechanical Positioning):Relies on physical stops or limits provided by the fixture. If your components exhibit excellent consistency and your fixtures possess high precision, mechanical positioning is entirely adequate and offers high stability.
Vision-Enabled Functionality:Automatically compensates for minute product displacements or component deformations (such as the slight shrinkage inherent in injection-molded parts) to achieve precise alignment.
Applicable Scenarios:Situations involving components with relatively large manufacturing tolerances, or production environments requiring extreme flexibility (e.g., a single production line that frequently switches between products with different physical layouts). Vision systems can significantly reduce the occurrence of stripped threads and "floating screws" (improperly seated screws) caused by misalignment. III. Avoiding Procurement Pitfalls
Assess Product Consistency:The higher the precision of the parts, the less reliance is placed on vision systems; however, if injection-molded parts exhibit inconsistent deformation, a vision system becomes an essential safeguard for quality assurance.
Evaluate Cycle Time Requirements:For cycles involving a high volume of screws, multi-axis synchronous operation should be strongly considered. However, it is important to note that an increased number of axes places higher demands on equipment coordination stability and MES monitoring capabilities.
Consider Production Changeover Frequency:For projects involving frequent product changeovers, we recommend selecting a six-axis robot or a vision-guided machine. These systems offer greater "flexibility" compared to fixed multi-axis machines that require manual mechanical adjustments for positioning.
As a technology-driven enterprise specializing in the automation of low-voltage electrical components, we believe that—regardless of the number of axes selected—the "traceability of fastening quality" remains the paramount factor. All our screw-fastening units are designed to integrate seamlessly with MES systems, enabling real-time monitoring of torque, rotation counts, and fastening status. The fastening status of every single screw is clearly displayed on a digital dashboard. When selecting a screw-fastening machine, there is no single "standard answer"—only the "optimal solution." Choosing the right number of axes drives efficiency, while selecting the right configuration ensures quality. We are committed to providing our clients with a comprehensive suite of solutions—ranging from basic single-axis systems to high-precision vision-guided fastening—helping you maximize your return on investment while simultaneously guaranteeing high yield rates.
