The automatic gripping mechanism of a kind of lathe dog of the utility model, comprise the trombone slide that is inserted in the main shaft, the spring chuck that cooperates with main shaft port inclined-plane is fixed in the trombone slide top, the three-jaw assembly is loaded on rear-end of spindle, dial and locking nut thereof are loaded on the trombone slide rear end, it is characterized in that making the oil cylinder of tubulose or cylinder piston and be slidingly matched with bearing block that this piston is connected and be enclosed within outside the main shaft, cone cylinder is made in the rear end of bearing block, and its conehead is relative with the pawl end of three-jaw assembly Oil cylinder or cylinder a cylinder cap be fixed in the lathe main body.Dial is shaped on the surface groove that cooperates with the pawl tail of three-jaw assembly, and has several circular holes that cooperate with alignment pin of annular distribution, and the axis hole place of dial also has the keyway that is slidingly matched with flat key.

Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by 陈相周 filed Critical 陈相周 Priority to CN 200520116186 priority Critical patent/CN2829948Y/en Application granted granted Critical Publication of CN2829948Y publication Critical patent/CN2829948Y/en Anticipated expiration legal-status Critical Status Expired - Fee Related legal-status Critical Current Links Inventor 陈相周彭树庆 Original Assignee 陈相周 Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number CN 200520116186 Other languages Chinese ( zh)

Google Patents CN2829948Y - Automatic chucking device of lathe chuck CN2829948Y - Automatic chucking device of lathe chuck

Lathe pulltube