Tool Turret Transmission Shaft for Gap-Free Torque Transfer
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Solution Overview
Problem
Conventional machine tools experience reduced precision and transmission delays due to gaps and inefficiencies in torque transmission paths, particularly in gearings, which affect the accuracy of machining operations.
Innovation Solution
A tool turret with a transmission shaft that allows for axial movement and rotation, featuring a connecting-side section with a mating surface and gearing that minimizes gaps between intermeshing gearings, and includes pins and freewheels for friction contact to ensure lag-free torque transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional gearings are used for torque transmission, then the structure is simple and easy to manufacture, but gaps occur at intersections of intermeshing gear wheels causing reduced precision and transmission delays
Solution Approach 1:
The transmission shaft is divided into distinct functional sections: a torque receiving-side section for receiving driving torque and a connecting-side section for connecting to the tool holder. This segmentation allows each section to be optimized for its specific function, with the connecting-side section featuring a mating surface that directly contacts the tool holder to eliminate gaps in the torque transmission path.
Solution Approach 2:
A mating surface is introduced as an intermediary element between the transmission shaft and the tool holder. This mating surface directly contacts the corresponding mating surface of the mounted tool holder, serving as a mediator that eliminates gaps and ensures precise torque transmission without the need for additional complex components.
2Reliability
If gearings with intermeshing gear wheels are used, then torque transmission is achieved, but gaps and transmission delays occur reducing accuracy
Solution Approach 1:
The mating surface is pre-configured on the transmission shaft at the connecting-side section to ensure proper alignment and contact with the tool holder before torque transmission begins. This preliminary configuration eliminates gaps and prevents transmission delays by establishing direct contact in advance.
Solution Approach 2:
The design ensures continuous torque transmission by eliminating gaps through the direct contact of mating surfaces. The transmission shaft maintains constant engagement with the tool holder, ensuring uninterrupted and continuous transfer of rotational motion and torque without delays or interruptions.
Data Source
AI summary
A tool turret includes a turret body having at least one connecting slot for replaceably mounting a tool holder to the turret and a transmission shaft arranged at the connecting slot. The transmission shaft is configured to transmit a drive torque to the mounted tool holder, and includes a torque receiving-side section for receiving driving torque and a connecting-side section for connecting to the mounted tool holder. The connecting-side section has a first gearing for transmitting the drive torque to a corresponding tool holder gearing, wherein at the torque receiving-side section a contacting part is provided for receiving the torque of the drive unit. A mating surface is provided at the connecting-side section of the transmission shaft and is arranged to contact a surface of the mounted tool holder for interacting with the tool holder to remove a gap between the first gearing and the corresponding mounted tool holder gearing.