{"id":1906,"date":"2026-09-28T11:39:24","date_gmt":"2026-09-28T03:39:24","guid":{"rendered":"https:\/\/www.blzn168.cn\/?p=1906"},"modified":"2026-09-28T15:12:36","modified_gmt":"2026-09-28T07:12:36","slug":"motion-control-system-of-vision-dispenser","status":"publish","type":"post","link":"https:\/\/www.blzn168.cn\/en\/motion-control-system-of-vision-dispenser\/","title":{"rendered":"How do the servo and lead screw of a vision dispensing machine work together?"},"content":{"rendered":"

Whether the vision dispensing machine's ”hand” is steady depends on motion control<\/strong>. Many purchasers get dizzy from the pile of metrics in the spec sheet; in fact the core is just two parts:the servo drive responsible for generating force<\/strong>, andthe lead-screw transmission responsible for converting rotation into linear motion<\/strong>. When the two cooperate well, the dots can be placed accurately and stop steadily. Understanding how these two cooperate is more useful than obsessing over a single parameter. Below we explain the motion control logic of Bolli vision dispensing machines.<\/p>\n\n\n\n

1. The Servo Drive Is Responsible for ”How Accurately It Moves and How Stably It Stops”<\/h2>\n\n\n\n

Bolli vision dispensing machines use Leadshine servo drives; the motion controller issues commands, and the servo motor rotates and stops precisely along the trajectory. In the industry, servo systems have different resolution grades; the overall machine accuracy ultimately depends on the manufacturer's calibration result, and it is not advisable to look at a single metric alone. All Bolli models are rated at XY speed about 800mm\/s and Z-axis about 500mm\/s, meeting most dispensing cycle times. Micro-compensation after positioning can pull the accumulated error back a notch, which is why overall machine accuracy often exceeds individual component specs.<\/p>\n\n\n\n

2. Lead Screw Transmission Is Responsible for ”Converting Rotation to Linear Motion”<\/h2>\n\n\n\n

The servo rotates in turns; what actually drives the dispensing head to move is the lead screw<\/strong>. Bolli vision dispensing machines use Xinsheng lead screws, guided by linear guides. Ball screws are graded by precision with industry-common ratings from C0 to C10; the higher the grade, the more precise. Specific selection is determined by the overall machine structure and application scenario. The rigidity of the screw plus guide directly affects vibration during high-speed start\/stop.<\/p>\n\n\n\n

3. How the Two Cooperate and Compensate<\/h2>\n\n\n\n

Having only a servo or only a lead screw is not enough. Bolli's approach: vision captures the accurate workpiece position, the controller plans the trajectory, the servo drives the lead screw to the target point per command, then performs micro-compensation after positioning. For granite-base models, the structure is more stable and thermal deformation is smaller, pushing accuracy to a higher tier\u2014for example, the granite panoramic solution is about \u00b10.05mm.<\/p>\n\n\n\n

4. Daily Calibration Maintains Long-Term Stability<\/h2>\n\n\n\n

No matter how good the servo and lead screw, long-term operation will produce deviations due to wear and thermal drift. Bolli recommends performing vision calibration and needle alignment per specification to periodically pull back motion errors. Making calibration a fixed rhythm is what keeps motion stability long-term. This is also why Bolli recommends periodic re-calibration to customers.<\/p>\n\n\n\n

5. When Selecting, Look at the Whole Machine, Not Individual Parts<\/h2>\n\n\n\n

When buying a vision dispensing machine, there is no need to obsess over the paper grades of individual components; more important is whether the repeatable performance from the whole-machine calibration matches your glue-path requirements. Bolli offers unlimited free sample trials so you can see motion stability on real workpieces\u2014more convincing than a spec sheet. If necessary, ask the manufacturer for a calibration report of the same-structure model for reference.<\/p>\n\n\n\n

6. Summary<\/h2>\n\n\n\n

The motion control of a vision dispensing machine centers on the coordination of Leadshine servo drives and Xinsheng lead screws:the servo governs ”how accurately it moves”, the lead screw governs ”where it moves to”, and then vision and the controller perform closed-loop compensation<\/strong>. Bolli vision dispensing machines are judged by whole-machine calibration performance, and offer unlimited free sample trials so you can verify stability firsthand. If unsure about the motion solution, feel free to contact 13352947677.<\/p>\n\n\n\n

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