Patent ID: 7496998

Claim:
A spring manufacturing apparatus for manufacturing a spring by executing bending processing with a tool on wire which is sent to a spring forming space on a forming table, comprising: a tool supporting unit configured to support a tool in a way that the tool can be slid toward the spring forming space, a plurality of said tool supporting unit being able to be arranged in a radial pattern from the spring forming space on the forming table; and a driving force transmission unit, attached to said tool supporting unit on the forming table, configured to transmit a driving force to said tool supporting unit for sliding the tool, wherein said tool supporting unit includes first and second tool supporting units configured to drive a tool by different driving methods, said driving force transmission unit has a common driving axis that can selectively be attached to the first and second tool supporting units, said first tool supporting unit comprises a first driving mechanism that transmits driving force of the driving axis to the tool by a rack and pinion, and said second tool supporting unit comprises a second driving mechanism that transmits driving force of the driving axis to the tool by a crank.