How does the fully automatic flexible crankshaft quenching machine work?

The crankshaft is the main rotating part of the engine. After the connecting rod is installed, the up and down (reciprocating) motion of the connecting rod can be turned into cyclic (rotating) motion. It is an important part of the engine. Its rotation is the power of the engine. It is also the source of power for the entire mechanical system. The working environment of the crankshaft is very harsh, so the production requirements for it are very high. For this reason, many manufacturers have used quenching to improve its service life and quality, with good results. Crankshaft quenching is usually carried out using an induction heating power supply and a quenching machine tool. There are many types of quenching machine tools. Today, the editor will introduce to you how the fully automatic flexible crankshaft quenching machine tool works.

Due to the continuous updating of product structures and the need for the production of multiple varieties of products, flexible manufacturing units have developed vigorously, and fully automatic flexible crankshaft quenching machine tools have emerged to serve crankshaft journal induction quenching. The fully automatic flexible crankshaft quenching machine tool has the characteristics of high productivity, low labor workload, and can be adapted to the production of various types of crankshafts with slight adjustments. Nowadays, fully automatic flexible crankshaft quenching machines can generally produce multiple varieties of four-cylinder and six-cylinder crankshafts. In the quenching parts, in addition to the main journal and connecting rod journal (various widths), the end journal, flange and other parts can also be quenched.

One side of the gantry crankshaft quenching machine tool performs connecting rod neck quenching (medium frequency), and the other side performs main journal quenching (medium frequency); the front part uses a 60kw super audio induction heating power supply for flange quenching, and finally detects the swing error.

The control system and characteristics of the flexible crankshaft quenching machine tool are as follows:

1) In terms of power supply, IGBT transistor power supplies are currently used, and variable frequency power supplies are used, such as 10KHz/40kHz or 10kHz/25kHz dual-frequency power supplies.

2) There is a programmer on the control panel, which can set the processing sequence, sensor position, heating, pre-cooling, cooling time, and output power (including changing the power by rotation angle, that is, allocating power according to different powers). Monitor (upper and lower limit values) heating time, pre-cooling, cooling, output power, voltage, current, intermediate journal bending amount, water flow, water temperature, energy monitoring value, etc. Most computers of fully automatic crankshaft quenching machines now use sie-mens810, and some use 840. Energy monitors have been commonly used in this device. Special ones include oscillation factor meters to monitor whether the sensor has deteriorated, as well as to monitor the bending deformation of the crankshaft and use a printer to print monitoring items and bending amounts.