In large-scale automated manufacturing of fasteners, electronics, precision hardware, and similar products, components typically undergo a continuous flow through multiple processes, including feeding, positioning, machining, inspection, and sorting. Conventional fixed-pitch conveying systems struggle to accommodate the dynamic variations in rhythm and spacing across different process stages, resulting in constrained line takt times and challenging equipment coordination. The multi-station variable‑pitch mechanism was specifically designed to address this pain point—it enables flexible adjustment of station spacing within a single drive system, ensuring precise spatial and temporal alignment among the processing units, thereby significantly enhancing the line’s overall automation level and production efficiency. For fully automated screw‑manufacturing equipment, the spacing and coordination at each stage—wire straightening, feeding, cold heading, thread rolling, inspection, and packaging—all directly impact production capacity and product consistency.

The core of the multi-station indexing mechanism consists of a cam-indexing system, an adjustable‑pitch guide rail, a clamping (or vacuum‑suction) assembly, and a synchronous drive shaft. Power is transmitted via the main drive shaft and, through a cam mechanism or servo system, drives the indexing table to perform intermittent rotary motion, while the clamping assembly moves along a specially designed variable-pitch guide rail. The profile of the guide rail determines the motion trajectory and dwell time at each station; by varying the pitch along the circular or linear path, step‑by‑step conveyance of workpieces between adjacent stations is achieved.

In a linear‑stroke variable‑pitch mechanism, sliders are arranged along the synchronous belt according to a predefined pattern. As the driving pulley rotates, the sliders, constrained by guide grooves, undergo phase‑shifted motions such as convergence, equidistant spacing, and divergence, thereby achieving flexible arrangements with either “one input, multiple outputs” or “multiple inputs, one output.” In rotary indexing mechanisms, a precision cam governs the indexing table’s motion–dwell ratio: machining is performed during the dwell phase, while station changes occur during the rotation phase, with positioning accuracy reaching ±0.01 mm. Jinqi’s variable‑ratio mechanisms widely employ Taiwan‑imported linear guides, bearings, and high‑precision cams; the critical cam profiles are precision ground to ensure stable performance even under prolonged high‑speed operation.

金骐五金機械制造有限公司隶属台湾金骐工业股份有限公司，在江浙沪地区深耕十多年，知名度家喻户晓。公司主营搓丝机、搓牙机、打头机、冷镦机、螺丝打头机、四模四冲冷镦机、自动打头机、高速开合模冷墩机、多功位冷墩机等整厂设备，并在上海设立代表处，提供样机展示、销售、仓储、技术培训及开模调机服务。公司产品通过ISO9000、3C、CQC及欧美日环保认证，拥有多项专利。

随着制造业向自动化、柔性化、智能化转型，多工位变距机构作为产线的"关节"，正朝着伺服化、模块化、数字孪生方向升级。金骐将持续引进台湾先进技术，结合大陆市场需求，将变距机构与冷镦、搓牙等紧固件设备深度融合，推出更多高效节能的多工位自动化解决方案，助力企业实现智能制造转型与国产化替代。