Modularized grouping assembly production line

The invention discloses a modular grouping assembly production line which comprises a turnover conveying line, a backflow conveying line and at least two assembly stations sequentially arranged along the turnover conveying line. Wherein the turnover conveying line is used for conveying production line tools, the turnover conveying line is provided with a starting end and a tail end, and the turnover conveying line is used for sequentially conveying the production line tools located at the starting end to all the assembly stations and then conveying the production line tools to the tail end; the backflow conveying line is connected with the turnover conveying line and used for bearing the production line tools at the tail end of the turnover conveying line and conveying the borne production line tools to the starting end of the turnover conveying line. Production line tools can be conveyed to circulate, use is more convenient, manual carrying is not needed, the labor cost can be reduced, and the labor intensit