Grinding Reduction Gear with DIN 6 Precision Class and 95%+ Transmission Efficiency for Precision Control in Robotic Joints

Grinding Reduction Gear precision Manufacturing For Torque Increase

This type of gear is a core transmission component of robotic joint reducers, playing a crucial role in "speed reduction with torque increase" and "precisely controlling joint motion". It can be analyzed from the following dimensions:

1. Core Transmission Logic
The essence of a reducer is to convert the "high-speed, low-torque" output of a servo motor into the "low-speed, high-torque" required by joints through gear meshing, making it possible for robots to "drive heavy loads with small motors". The gear in the figure acts as a "bridge" for power transmission from the motor to the joint.

2. Performance and Technical Features
▶Precision Control: To meet the demand for "micron-level positioning" in tasks like welding and assembly, gears require ultra-high machining precision. Through processes such as gear grinding and heat treatment, the backlash error can be minimized, enabling the repeat positioning accuracy of robots to reach "within 0.1 mm" or even "arcsecond level".
▶Load and Rigidity: High-strength alloy steels are used, combined with "heat treatment/surface hardening" to enhance wear resistance and impact resistance; meanwhile, through "torque balance design", local stress concentration is avoided to ensure stability under heavy loads.
▶Transmission Efficiency and Noise Reduction: Optimize tooth profiles and lubrication solutions to reduce friction losses; if it is the "flexspline + circular spline" of a harmonic reducer, the "multi-tooth meshing and zero-backlash" design can also be adopted to achieve smooth transmission and reduced noise.

3. Adapt to Different Reducer Types and Cover Multiple Scenarios
There are various technical routes for robotic joint reducers, and the shape and role of gears vary accordingly:
▶Harmonic Reducer Gears: The core consists of "flexspline + circular spline + wave generator". The flexspline undergoes elastic deformation under the action of the wave generator and meshes with the circular spline to achieve a large speed reduction ratio. Such gears are small in size and high in precision, suitable for joints of robots that require "lightweight and high flexibility" like "forearms and wrists".
▶RV Reducer Gears: Composed of "planetary gears + cycloidal pinwheels". The front-stage planetary transmission performs preliminary speed reduction, and the rear-stage cycloidal pinwheels enhance load capacity. The gears are high in rigidity and large in torque, suitable for heavy-load joints such as "bases and large arms".
▶Planetary Reducer Gears: Meshed by "sun gear + planetary gears + ring gear", they are compact in structure and high in transmission efficiency, and are mostly used in scenarios such as the Z-axis lifting module of SCARA robots that "have moderate precision requirements but require high transmission efficiency".

4. Technological Evolution and Industry Value
With the development of humanoid and collaborative robots, gear technology is evolving towards "miniaturization and intelligence":
▶Miniaturization: Micro cycloidal reducer gears can achieve an ultra-high speed reduction ratio of 1:119. Combined with 3D-printed flexsplines, they enable "biological tendon-like compliant control" for bionic hand joints.
▶Intelligence: Gear/reduction modules with torque sensors can monitor working conditions in real time and provide early warnings of wear through vibration spectrum analysis, improving the operation and maintenance efficiency of robots.
From an industry perspective, precision gears are the "standard configuration for core joints of industrial robots" and also a key technology for domestic reducers to break the import monopoly, supporting the mass production of humanoid robots.

In short, the gear in is the core carrier of "small motors pulling heavy loads and rough motions achieving micro-control". Through the optimization of precision, strength, and transmission efficiency, it supports the multi-scenario applications of robots from industrial production lines to humanoid collaboration.

DINGSCO Precision Gear Solutions — Pioneering Force in Equipment Transmission

Core Advantages: Cutting-Edge Equipment × Digitalized Processes × Full-Cycle Services

Our company was formerly known as Changsha Double Star Gear Industrial Co., Ltd, which was established in 1994. It is a directly affiliated university-run enterprise founded by Central South University Professor Zeng Tao, the leading expert on spiral bevel gears in China. It was later renamed as Changsha Senjie Gear Co., Ltd (abbreviated as "CSG") in 2016. CSG is a production R&D base specializing in professional design, reserch, manufacture and sales of high-quality small module spiral bevel gears and high reduction hypoid gears and cylindrical gears. In 2023, Hunan Dinghan New Material Technology Co., Ltd. was established as a specialized international export business department. CSG has strong scientific research and development capabilities and is also equipped a full set of advanced equipment including seven-axis five-linkage CNC spiral bevel gear grinding machines and gear milling machines. By making the best use of the scientific and technological achievements and equipment of the Gear Research Institute of Central South University, machanical processing, heat treatment and testing. We have developed high-quality products featuring high reduction, high speed, heavy load, low noise and less teeth for users.

With the quality policy of "scientific and technological innovation, quality first, being first-class firm and customer‘s satisfaction", we have won the trust of well-known domestic and abroad enterprises with stable and excellent quality. It is committed to be a pioneer of the industry of China's small-module spiral bevel gears, and is dedicated to providing service for any related industry requiring industrial robots, CNC turning and milling compound power tool turrets, industrial sewing machines, reducers, bicycles, power tools and aeromodelling. We sincerely look forward to your cooperation!