Coplanar cam indexer is a specially designed intermittent transmission device, whose core feature is that the motion trajectory of the driving cam and the driven roller system is in the same plane ("coplanar" means "coplanar") to achieve true two-dimensional coplanar mechanical transmission.
Through this coplanar layout, precise conversion from continuous rotational motion to intermittent indexing motion is achieved, combining structural compactness and transmission accuracy .This design completely eliminates the axial force problem of traditional dividers and is suitable for automation scenarios that require high installation space and motion coordination.
The design of Coplanar cam indexer around "mechanical meshing within the same plane", and the key components and operating logic are as follows:
1).Coplanar cam: It is usually a disc-shaped planar cam installed on the drive shaft, and its contour curve (including the indexing section and the stationary section) is machined and formed in the same plane. The material is mostly high-strength alloy steel (such as 40Cr), which is strengthened for wear resistance through heat treatment.
2).Passive component: located in the same plane as the cam, including rollers, shift pins or sliders, directly in contact with the cam profile, and driven by the thrust of the cam to move the driven shaft or load (such as turntable, conveyor plate).
When driving shaft drives the coplanar cam to rotate, the "indexing section" of the cam pushes the driven component, causing the load to complete indexing rotation at a preset angle (such as 45 °, 60 °); When the cam enters the "stationary section", the driven component comes into contact with the straight part of the cam profile, and the load remains stationary, waiting for external processes such as assembly and inspection to be completed. The entire motion cycle is completed in the same plane, without the spatial interference problem of cross axis transmission.
Here In this page, we introduce PU175DS Cam Indexers from TallMan Robotics, which is the top leading manufacturer of Cam Indexer, you will see data sheet, production pictures,vedios as follows:
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The "coplanarity" of Coplanar cam indexer gives it significant advantages in specific scenarios:
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Extremely compact space |
The cam and follower move in the same plane, without the need to reserve space for cross axis or stereo transmission. The axial and radial dimensions are greatly reduced, making it suitable for micro automation equipment (such as precision electronic component assembly machines). |
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Strong motion coordination |
The force transmission path within the same plane is more direct, reducing torque loss and phase difference in multi axis transmission, ensuring motion synchronization during high-speed indexing (the highest indexing frequency can reach 600 times/minute). |
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High precision positioning |
The coplanar layout avoids meshing errors caused by axis misalignment, with a positioning accuracy of ± 0.01~± 0.05mm and a repeat positioning accuracy of ≤ 0.003mm, meeting the needs of ultra precision fields such as optics and medical. |
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Low maintenance cost |
Simplified structure reduces the number of transmission components, coupled with sealed lubrication design, the mean time between failures (MTBF) can reach over 20000 hours, and daily maintenance only requires regular replenishment of lubricating grease. |
Coplanar cam indexer is mainly used in micro precision equipment due to its ultra compact and high-precision characteristics
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Microelectronics manufacturing |
such as the wire bonding station of chip packaging equipment, which drives the wafer stage to intermittently index in the same plane to ensure bonding accuracy (within ± 0.005mm). |
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Optical instruments |
Multi station assembly of lens modules, achieving precise alignment and bonding of lenses through coplanar transmission. |
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Medical microassembly |
such as the assembly of microcatheters and sensors, achieving intermittent positioning of millimeter level workpieces in a clean environment. |
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Precision detection |
The sample stage of atomic force microscopy (AFM) is driven to achieve nanometer level precision position switching through coplanar indexing. |
Coplanar cam indexer is a key transmission component in the field of micro precision automation. Its "coplanar motion" design solves the problem of high-precision intermittent transmission in narrow spaces, providing irreplaceable technical support for ultra precision manufacturing, optics, medical and other fields.
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