2 results about "Material hardness" patented technology

The invention discloses an anti-breaking grooving machine for a construction site. The anti-breaking grooving machine for the construction site comprises an installing bottom plate; a water tank and acutting motor are fixedly connected to the upper surface of the installing bottom plate; a water leaking pipe is fixedly connected in the installing bottom plate; one end of the water leaking pipe communicates with the inner bottom wall of the water tank; and the other end of the water leaking pipe extends to the exterior of the installing bottom plate. The anti-breaking grooving machine for theconstruction site achieves the effect of performing twisting force adjustment on a cutting rotating shaft, when the twisting force borne by the cutting rotating shaft is large, an adjusting rod disengages from the inner wall of an adjusting groove to continue to rotate, and after rotating is performed by a circle, the adjusting rod is connected with the inner wall of the adjusting groove again inan inserted manner; and when the twisting force borne by the cutting rotating shaft is still large, the adjusting rod repeats the above action, at the moment, the installing bottom plate can be pushedbackwards properly, then the cutting rotating shaft can continue to rotate, then the feeding amount is adjusted, and therefore the problem that because the material hardness is not uniform, a cuttingblade is damaged easily is effectively solved.

The invention provides a servo motor driven type in-die variable-speed tapping machine with a screw tap detection device. The servo motor driven type in-die variable-speed tapping machine consists of a servo motor, a servo motor controller, an in-die tapping machine, a guide sleeve, a limiting post, a fixed plate, a connecting plate, a guide post, a moving plate, a screw tap detection head and a nitrogen spring, wherein the servo motor is functionally connected with a screw tap spindle assembly through a gear group, the servo motor controller is connected with the servo motor through a conducting wire, the moving plate is arranged on the guide post in a sleeving manner, the bottom surface is supported by the nitrogen spring, and the screw tap detection head is arranged in the position coaxial with the screw tap spindle assembly on the moving plate. As the screw tap spindle assembly is driven by using the servo motor, three speeds are separately set in the tapping process, and the screw tap detection head is arranged in the position coaxial with the screw tap spindle assembly on the moving plate, a rotating speed suitable for material hardness can be selected during tapping so as to prevent a screw tap and taped products from being damaged, and at the same time, whether the screw tap exists or not can also be effectively detected so as to ensure the production efficiency and processing quality of subsequent product continuous processing.