Pressing machine clamp control oil circuit equipped with safety valve

The invention relates to a pressing machine clamp control oil circuit equipped with a safety valve. The pressing machine clamp control oil circuit includes an oil tank, two motors and two-position three-way reversing valves, oil inlets of the two motors are connected with the oil tank through pipelines, oil outlets of the two motors are concentrated through pipelines and connected to B ports of the two two-position three-way reversing valves, and A ports of the two two-position three-way reversing valves are directly connected to the oil tank through pipelines. P ports of the two-position three-way reversing valves are connected to an oil inlet of a clamp oil cylinder, the A ports of the two-position three-way reversing valves are connected to outlets of overflow valves through pipelines,and inlets of the overflow valves are connected to the P ports through pipelines. Control ports of the motors are concentrated through pipelines and connected to an outlet of a pressure reducing valve, and an inlet of the pre