CNC steel models reinforced straighten cutter length detection

In order to achieve CNC steel modelsand thread steel straightening machine of numerical control, automation, accurate measurement must be reinforced according to the length of the required length automatically cut reinforcement. In this paper, these two questions relative error were studied, and in my school Machinery Factory production of steel straightening and cutting machine and achieved satisfactory results, cutting steel is less than 0.5%, to overcome the existing equipment can not be used for small-diameter steel tone straight and cutting question. The device has an automatic length detection, automatic synchronization of the mobile station under the knife, cut the number of steel automatic counting and other functions.

       1, CNC steel modelsworks Figure 1 is reinforced straighten cutter of the mechanical drive schematic. It is transferred straight bars 1 in 2 and traction drive roller 4 feed rollers under a rotating tune straight 3 straight. Reinforced straight through after the upper and lower turret of the port to move forward. When the front end reinforcement after straightening iron is not moved to stop position 7, 8 hammer inertia wheel drive although mainly as vertical reciprocating movement 9, but due to not come into contact with the knife station 10, it is not subjected to shear reinforcement. When the front straight after the steel top to 7:00 stopper by the lever 6 causes the upper turret 10, lower turret 5 is moved forward. At this point, the reciprocating motion of the hammer 8 through the upper and lower turrets of reinforced shear (shear reinforcement length L), completed a steel straightening and cutting. Continuous motion, to complete the continuous steel straightening and cutting.
       2, reinforced length detection CNC steel models harsh working conditions, larger vibration machines work. Upon detecting a bar size, in addition to ensuring accuracy, but also must meet anti-interference ability, reliable, long life and other requirements. Existing reinforced straighten cutter size detection machine adopts contact measurement, that is, when reinforced move, driven by resilient friction wheel rotation. Friction wheel and then connected with the pulse generator, calculate bar length by the count value of the pulse generator. Due to straighten cutter work in the machine itself and reinforced vibration is very strong, wear friction wheel is extremely serious, if from time to time to replace the friction wheel is detected, it will affect the detection accuracy, resulting in cutting errors. For these reasons, reinforced length detection method must be used for non-contact detection. By trials comparing the use of applied magnetic signal on reinforcement alternately programs more feasible, meet the design requirements.