Detection device for mechanical cam controller

The invention discloses a detection device for a mechanical cam controller; a driving mechanism is used for driving the mechanical cam controller and an encoder to rotate by a coupler; the encoder is used for sending the acquired crankshaft angular velocity information into a control system; a movement monitoring signal generator is used for acquiring crankshaft status signals and sending the signals into the control system; a photoelectric position sensor is used for acquiring the switch position of a cam group and sending the switch position into the control system by a photoelectric signal receiver; and a switch contact is used for sending a switch power-on opening and closing signal into the control system. The control system can be used for processing the signals by an internal computing system, so that the test aim can be achieved. The detection device is suitable for testing the performances and the service life of the mechanical cam controller, can realize multi-parameter measurement, especially the measurement for repeatability precision, and has the characteristics of being accurate in test results, visual, quantitative, small in size and high in efficiency.