Novel device for connecting press connecting rod and ball screw rod

Abstract

The invention provides a novel device for connecting a press connecting rod and a ball screw rod. A positioning flange is fixedly arranged on the lower port of the connecting rod through a bolt and a fastening bolt; during installation, the axle center of an unthreaded hole of the positioning flange is concentric with the axle center of the connecting rod and fixed to a machine body; the ball joint screw rod is arranged in a connecting rod threaded hole from the middle hole of the positioning flange; during installation of the positioning flange, the axis of the unthreaded hole of the flange is concentric with the axis of a threaded hole on the connecting rod; the diameter of a central unthreaded hole in a guide flange is slightly greater than the large diameter of an internal screw thread on the connecting rod or the large diameter of an external screw thread on the ball joint screw rod; a part, which is close to a ball joint, of the ball joint screw rod is made into a section of ball joint cylinder; the free size of the outer diameter of the ball joint cylinder is the same as that of the central unthreaded hole of the positioning flange; and minor clearance fit is formed in the aspect of tolerance.

Description

technical field [0001] The invention relates to a connecting device of a connecting rod of a press machine and a ball screw, in particular to a novel connecting device of a connecting rod of a press machine and a ball screw. It belongs to the technical field of forging machinery. Background technique [0002] The connecting rod and the ball screw are the important functional parts of the press. They transmit the pressure by the cooperation of the internal and external threads of the two, and at the same time, the adjustment of the working mechanism of the press is realized by the adjustability between the two threads. At present, in the actual use process, it often happens that the thread between the two is difficult to adjust, and even the thread is damaged. The main reason for this phenomenon is that the connection mechanism between the connecting rod and the ball screw is through two The thread of the other is directly connected, this connection method is not reasonable,...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a novel connecting device for a press connecting rod and a ball lead screw, which overcomes the existing problem of the existing press connecting rod and ball screw due to the use of direct threaded connections: The pressure transmission of the ball screw during work is not always carried out along the axes of the two, which may easily lead to unbalanced loading of the force between the threads, excessive local force, and deformation or even damage between the threads.

Images