A flexible transmission device for workpiece annealing

Abstract

The invention provides a flexible transmission device for workpiece annealing, which includes a flexible shaft, a hollow sleeve and a flexible bearing assembly; the flexible shaft is located in the inner cavity of the hollow sleeve, and the end surface of the hollow sleeve is in contact with the The flexible bearing assembly is connected, and the flexible bearing assembly supports the flexible shaft; the flexible bearing assembly includes an outer retaining ring, an inner bushing and a steel ball matched with each other, the inner bushing is a hollow cylinder, and the inner bushing There is a mounting hole on the inner wall, the diameter of the connection between the mounting hole and the cavity of the inner bushing is smaller than the diameter of the mounting hole of other parts and the diameter of the steel ball, and the outer retaining ring is a hollow ring matched with the inner bushing. The inner wall of the outer retaining ring is provided with a mounting groove communicating with the mounting hole of the inner bushing, and a flexible compression spring is provided in the connecting mounting hole and mounting groove, and one end of the flexible compression spring is connected with a steel ball, so that The steel ball is placed in the mounting hole. This patent ensures that the fixing part will not cause damage to the workpiece during the processing.

Description

technical field [0001] The invention belongs to the field of workpiece annealing, in particular to a flexible transmission device for workpiece annealing. Background technique [0002] At present, the annealing process of the workpiece mainly adopts the method of induction heating, that is, the workpiece is placed in the induction coil to be rotated and heated, but for small-sized workpieces, the coaxiality between the workpiece and the coil is required to be within 0.05mm during annealing. However, in the current annealing device that does not use positioning tooling, the coaxiality of the workpiece, the driving motor spindle, and the heating coil can only reach about 0.25 mm, and the debugging and adjustment in the production process are more troublesome, resulting in product processing efficiency. Low, the pass rate is also low. The annealing device using the positioning tool basically adopts a rigid transmission spindle. During the processing, due to the deviation of th...

AI Technical Summary

Problems solved by technology

However, in the current annealing device that does not use positioning tooling, the coaxiality of the workpiece, the driving motor spindle, and the heating coil can only reach about 0.25 mm, and the debugging and adjustment in the production process are more troublesome, resulting in product processing efficiency. Low, the pass rate is also low

The annealing device using the positioning tool basically adopts a rigid transmission spindle. During the processing, due to the deviation of the coaxiality, the workpiece will swing in a conical shape, which will cause severe friction between the workpiece and the positioning tool, and a long time Friction can scratch the surface of the product

In the face of the above situation, using the traditional universal coupling flexible transmission scheme can solve the rigidity problem in the middle part, but the end of the transmission shaft is still a rigid bearing, so it still cannot fundamentally solve the friction problem during transmission

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