Tooth contact position adjustment amount estimation device, machine learning device, and robot system

A tooth contact position adjustment amount estimation device configured to perform processing with respect to estimating a tooth contact position adjustment amount for dimensional data of parts constituting a power transmission mechanism, the tooth contact position adjustment amount estimation device comprising:

• a machine learning device configured to perform processing with respect to estimating the tooth contact position adjustment amount for the dimensional data of parts constituting the power transmission mechanism, a tooth contact between the parts changing due to a dimensional error of the parts, wherein the machine learning device is configured to
• observe part dimensional data, which is the dimensional data of the parts constituting the power transmission mechanism, as a state variable indicating a current state of an environment, before the parts are supplied to assemble the power transmission mechanism,
• store the observed part dimensional data in a memory, and
• perform processing with respect to estimating the tooth contact position adjustment amount for the dimensional data of the parts constituting the power transmission mechanism before the power transmission mechanism is assembled, by performing processing with respect to machine learning based on the state variable observed and stored in the memory before the parts are supplied.