Patent application number | Description | Published |
20130112025 | BALL SCREW ASSEMBLY BASED ON HEAT-PIPE THERMAL DISSIPATION - A ball screw assembly based on heat-pipe thermal dissipation is composed of a ball screw and at least one heat pipe. The ball screw includes a threaded shaft, a nut, and a plurality of balls mounted between the threaded shaft and the nut. The at least one heat pipe defines a main body and an extended part. The main body is mounted to the ball screw. The extended part extends outwardly for a predetermined length from the ball screw for thermal dissipation or connection with a heat-dissipating device. | 05-09-2013 |
20140165759 | BALL SCREW CAPABLE OF REAL-TIME SURVEILLANCE AND CONTROL OF PRELOAD - A ball screw includes a screw rod having an external thread; two screw nuts having an internal thread and a circulatory passage each, a spiral path being formed between the internal threads and the external thread and communicating with the circulatory passage, each of the two screw nuts having a keyway located on respective toric surfaces of opposite ends of the two screw nuts, the two keyways facing each other; a link mounted inside the two keyways to traverse the two screw nuts; a force sensor mounted between and squeezed by opposite sides of the two screw nuts; and a plurality of balls located inside the spiral path or the circulatory passage and keeping rolling while moving. | 06-19-2014 |
20150020327 | BAND-SAW CLEANING MECHANISM FOR BAND SAW MACHINE - A band-saw cleaning mechanism includes a cleaning unit having a steel brush, a first motor having a driving shaft, and a linking rod connected between the steel brush the driving shaft; a torque sensor mounted to the driving shaft for sensing the torque of the driving shaft and for emitting a sensing signal; a regulation unit having a second motor and a regulation screw having two ends connected with the second motor and the linking rod, respectively; and the control unit connected with the torque sensor and the second motor for controllably making the second motor regulate the regulation screw for prolongation according to the sensing signal. While the regulation screw is prolonged, the linking rod can be pushed to change the contact distance between the steel brush and the band saw for proper contact therebetween. | 01-22-2015 |
20150020628 | BALL SCREW CAPABLE OF SENSING PRELOAD - A ball screw capable of sensing a preload is formed of a nut having an internal thread surrounding an imaginary central axis, a screw inserted into the nut and having an external thread surrounding the imaginary central axis, and a plurality of balls are mounted between the internal and external threads in a way that the balls roll therebetween. A mounting hole having a mounting surface therein is formed in the nut. The mounting surface corresponds to the internal thread in a way that it is substantially perpendicular to the imaginary central axis. A force sensor is mounted to the mounting surface. The force sensor can directly sense the preload in real time, so it is uneasily adversely affected by any environmental factor to have more accurate sensing result relatively. | 01-22-2015 |
20150020660 | BAND SAW MACHINE CAPABLE OF AUTOMATICALLY REGULATING CUTTING SPEED - A band saw machine includes a chassis, a motor mounted to chassis, a driving wheel mounted to the chassis and connected with the motor, a driven wheel mounted to the chassis, a band saw running on the driving and driven wheels, a band-saw regulator mounted to the chassis and located between the driving and driven wheels, and a force sensor mounted inside the band-saw regulator for sensing how much a force is applied to the band-saw regulator in the process of cutting and for emitting a sensing signal to a control system. In this way, the control system can control the rotational speed of the motor according to the sensing signal received from the force sensor to automatically regulate the cutting speed. | 01-22-2015 |
20150027288 | BAND SAW MACHINE CAPABLE OF REGULATING BAND-SAW TENSION - A band saw machine includes a working bench, a driving wheel mounted to the working bench, a driven wheel mounted to the working bench, and a band saw running on the driving and driven wheels. A storage member and a hydraulic cylinder connected with the storage member are mounted to the working bench. The hydraulic cylinder includes a piston rod for pushing against the driven wheel to make the driven wheel tighten the band saw while moving relative to the driving wheel. A force sensor is mounted between the piston rod and the driven wheel for sensing the tension of the band saw and emitting a sensing signal to a control system. In this way, the control system can receive the sensing signal and controllably making the storage member supply oil to the cylinder body according to the sensing signal to force the piston rod to elongate. | 01-29-2015 |
20150096396 | BALL SCRW CAPABLE OF SENSING PARALLELISM IN REAL TIME - A ball screw is formed of a screw rod, two screw nuts, a link, a plurality of balls, and at least two parallelism sensors. The screw nuts are sleeved onto the screw rod and are connected with each other via a link to define a spiral path therebetween. The spiral path is linked with an internal circulatory passage of each screw nut for receiving a plurality of balls. The two parallelism sensors are oppositely mounted between the two screw nuts and surround the screw rod for sensing the preload between the two screw nuts to figure out whether the parallelism of the screw rod after the assembly is deviated or not. In this way, monitoring the voltage value outputted from the parallelism sensors can monitor the parallelism of the screw rod in real time after the assembly. | 04-09-2015 |
20150096397 | BALL SCREW CAPABLE OF SENSING TORQUE IN REAL TIME - A ball screw capable of sensing a torque in real time includes a screw rod, a screw nut sleeved onto the screw rod, a plurality of balls mounted between the screw rod and the screw nut, and a torque sensor haying a first fastening portion and a second fastening portion. The first fastening portion is fixed to a working bench and the second fastening portion is fixed to the screw nut, so the torque sensor can sense how much the torque is while the screw out is driving a working bench to move. In light of this structure, monitoring the voltage value outputted by the torque sensor can sense the torque generated while the working screw rod is working. | 04-09-2015 |