Low-voltage direct-current servo driver

The utility model provides a low-voltage direct-current servo driver. The low-voltage direct-current servo driver comprises a power driving board, a power board, a control board, a communication interface board and a detachable structure, wherein the power driving board, the power supply board, the control board and the communication interface board are sequentially arranged from low to high and are fixedly connected through the detachable structure; the detachable structure comprises a sleeve rod structure and a bolt structure. The sleeve rod structure is a connecting column, through holes are formed in the corresponding positions of the power panel, the control panel and the connecting column, and the power panel and the control panel are arranged on the connecting column in a sleeving mode through the through holes to be fixed. The functional blocks of the servo driver provided by the utility model can be freely assembled, and flexible adjustment and transformation can be realized in a plurality of applica