VTMF SERVO TRUNNIONS
VTMF Servo Trunnion 1010
Max permissable output torque (Nm)
2940
Indexing Accuracy in Angular Seconds (")
±10
Max radial force static (kN)
100
Through hole dimension (mm)
165
Max radial force dynamic (kN)
29
Max vertical force dynamic (kN)
20
Max tilting moment (kNm)
19
Axial Runout on Output Flange Ø [mm]
0.02
Runout on the output flange Ø [mm]
0.02
VTMF Servo Trunnion 2010
Max permissable output torque (Nm)
5460
Indexing Accuracy in Angular Seconds (")
±10
Max radial force static (kN)
350
Through hole dimension (mm)
190
Max radial force dynamic (kN)
64
Max vertical force dynamic (kN)
75
Max tilting moment (kNm)
100
Axial Runout on Output Flange Ø [mm]
0.02
Runout on the output flange Ø [mm]
0.02
VTMF Servo Trunnion 3010
Max permissable output torque (Nm)
11160
Indexing Accuracy in Angular Seconds (")
±10
Max radial force static (kN)
543
Through hole dimension (mm)
80
Max radial force dynamic (kN)
85
Max vertical force dynamic (kN)
80
Max tilting moment (kNm)
108
Axial Runout on Output Flange Ø [mm]
0.02
Runout on the output flange Ø [mm]
0.02
The VTMF Series Rotary Index Table Servo Trunnion was engineered to satisfy the needs of the 21st century industrial manufacturing environment: fast, strong, reliable, high quality and cost effective. The VTMF Series programmable rotary indexing trunnion features a cast housing that is compact and has all the characteristics a manufacturer looks for: large center thru-hole for running utilities and mounting equipment, a compact housing to save on floor space and improve design flexibility, a completely sealed housing for mounting the unit on its side, and a large rotating diameter for increased mounting surface.
The VTMF Series Rotary Index Table Servo Trunnion was designed to be a completely programmable solution. This allows for a minimum of 4 oversized cam followers to be engaged with the barrel cam at all times. This programmable rotary indexing trunnion is driven directly by a gear reducer coupled to either an AC motor with encoder or servo motor. Both options provide very high accuracy (less than 10 arc seconds) and allow for the indexer to be driven by a dedicated amplifier or as an auxiliary axis to a robot drive. Loading capabilities are multiplied significantly in this line of indexers through the design of the barrel cam and cam followers. This unique design allows for unprecedented inertial load as a function of index time capacity.
ADVANTAGES FOR DESIGN ENGINEERS AND SPECIAL MACHINE BUILDERS
01
Large center thru-hole
02
Dowel holes in housing and in output flange
03
Recessed center column – No obstruction
04
Simultaneously rotating input shaft extension – Optional on opposing side of gear reducer
05
Optional synchronization of other devices either electronicalyl or mechanically
TECHNICAL BENEFITS FOR USERS
- Extremely reliable wit
- High efficiency (>90%) mechanical components require less input power
- Flame hardened cams and cam followers
- Internal components immersed in oil bath
- Compact housing for seamless integration
- Top access to cam followers
- Oversized center thru-hole
- Significantly increased strength as a result of integration of more cam followers
- Inspection of internal components can be done with tooling mounted on top.
OPTIONS AVAILABLE
- Machine bases
- Reinforced output flange bearing
- Clean room ready with MEDEX Index Drives
- Custom dial plates or frames
- Customer chosen brand and series of motors
- Custom machined components to customer print
- Auto lubrication systems
Custom Solutions
Custom Trunnion Weld Positioner with Frame
Automotive
Features
- Load Capacity: Handles 24,000 pounds of load and 15,000 kgm² of inertia.
- Slip Ring: Facilitates Ethernet communication and power delivery to fixtures.
- Locking Plate: Includes a lockout mechanism with two tandem bolts for safety during maintenance.
- Positioning Switches: Indicate the position of the tooling fixture.
- Air Union: Allows air to pass through the hollow backbone to the fixtures.
- Mastering Pin: Assists in zeroing out the system.
- Split Bearing Block: Features a self-aligning tapered rolling bearing for easy assembly and removal.
- R&W Style Coupling: Allows easy decoupling of the indexer from the backbone.
Functionality
The custom Trunnion Weld Positioner with Frame is designed to support and position an automotive fixture in major automotive facilities. It provides precise positioning with its zero backlash TMF2000 Rotary Indexer with AC motor control and an absolute encoder.The slip ring and air union facilitate communication and power delivery, as well as air supply to the fixtures, enhancing the overall operational efficiency. The mastering pin and split bearing block contribute to easy system zeroing and assembly, making the positioner a versatile and efficient solution for various indexing applications.
2-Axis Sky Hook Weld Positioner
Automotive
Features
- The main axis uses a TMF1000 cam-operated programmable indexer, and the secondary axis uses a RT250 barrel cam-operated indexer provide zero backlash and high precision.
- Combined accuracy of +/- 21 arc seconds from the cam indexers ensures a highly consistent weld, crucial for quality control in automated welding environments.
- The cam indexers are fully sealed design allows for operation in vertical and upside-down orientations, enhancing versatility.
- The auxiliary axis units are equipped with four-point contact support bearings, designed to support tooling and part loads without needing additional external bearing supports.
- Counterweights have been calculated based on the customer provided design to achieve a center of gravity of zero on the main axis.
- The positioner was equipped with robot motors on both the auxiliary axes, providing additional coordinated motion for precise control and orientation during the welding process.
Functionality
A leading automotive parts manufacturer specializing in precision welded components for car chassis and frame assemblies produces large batches of high-strength welded parts that require a high degree of accuracy and consistency. The 2-Axis Sky Hook Weld Positioner was a successful solution for this automotive supplier, enabling them to automate their welding operations, increase production speed, and achieve consistently high-quality welds.
Trunnion Solution
Battery Tray Assembly
Features
- Driven by the programmable VTMF1000 rotary indexer, achieving very low positional accuracies in single digit arc seconds with low backlash servo reducers.
- One set of trunnions will be driven by an Aux Axis servo motor and controlled by the robot controller. The second set of trunnions will be driven by a Gearmotor with brake and encoder.
- The front of the headstock is designed with a cable management system, this allows the customer to run the utilities through the cable carrier, and out to the fixture. In this design the Grounding will be passed through the center thru hole of the indexer.
- The Headstock is also comprised of a “Lock-out” mechanism for operator or maintenance personnel safety.
- A home prox switch was included in the design as well as overtravel switch protection. The overtravel switch protects the cable management system from wrapping itself up on the spool too far or unwrap the other way past fully extended.
- Both the head stock and tail stock are supported by heavy duty tubular structure frame weldments.
Functionality
This Single Axis Trunnion System is designed for high-precision applications, offering advanced safety features, minimal backlash, and a robust structure for demanding environments. The combination of servo motor control, gearmotor systems, safety lock-out mechanisms, and cable management ensures that this system meets the technical and operational needs of the customer while maintaining safety and performance.
Motion Index Drives can customize your rotary cam indexers from our standard line or an innovative new solution.
