Abstract: A method for monitoring the spindle preload amount of a spindle by: S1 obtaining a spindle preload amount through a PPC Preload Analyzer; and S2 obtaining an axial force sensor output of the spindle through an axial force sensor, wherein the axial force sensor output is calibrated using the spindle preload amount that is obtained through the PPC Preload Analyzer; establishing a relationship between the spindle preload amount and the axial force sensor output, then regarding the axial force sensor output as the spindle preload amount, and then monitoring the spindle preload amount by monitoring the axial force sensor output.

Abstract: A reducer module with real-time torque sensing includes two harmonic reducers that are installed in opposite directions in a casing and located in front of and behind a ring, respectively; and a plurality of torque sensors mounted on ribs of the ring for measuring a torque value. The ring's inner circle, the front harmonic reducer, and the rear harmonic reducer are centrally bored to form a channel, through which wires of the torque sensors go out the reducer module and are prevented from torsion and stretch during operation of the reducer module.

Abstract: A hollow motor module as a combination of a motor and a speed reducer is disclosed. The motor includes an outer stator, a first rotor and a plurality of second rotors. The first rotor is peripherally provided with a first coil and is installed in the outer stator. Each of the plural second rotors is peripherally provided with a second coil and is installed in the first rotor. The second rotor has a coupling portion extending out of the first rotor. The outer stator has first magnets that work with the first coil to magnetically excite the first rotor to rotate. The first rotor has second magnets for the second rotors. The second magnets work with the corresponding second coils to magnetically excite the second rotors to rotate synchronously. The speed reducer is connected to the coupling portions of the second rotors.

Abstract: A hollow-type planet speed reducer includes a body. The body includes at least one driving gear driven by a power input source. The driving gear is connected to a transmission gear, and the transmission gear is connected to a first gear. Based on this, the output rotation speed can be reduced by the incorporation of the driving gear, the transmission gear and the first gear. Besides, a tubular member passes though the body and has an accommodating space to receive wires of the hollow-type planet speed reducer.

Abstract: A method of linking to and monitoring machining devices through the cloud service enables a user to use a cloud app on the cloud to link to machining device at a specific client through a cloud service. The cloud service has API function commands for the cloud app to call and use. The client has an integrated execution module to connect to the machining device. The integrated execution module on the client links to the cloud service through a cloud connection module.

Abstract: The present invention relates to a non-stick coated electrosurgical diathermy instrumentation, comprising: a handle portion; an isolation tube, connected to the handle portion by one end thereof; an instrument portion, connected to another end of the isolation tube, wherein an anti-sticking layer is formed on the surface of the instrument portion; and an electrode, connected to the handle portion and an external conductive member. In the present invention, the instrument portion is able to generate heat when the conductive member conducts electricity to the instrument portion.

Abstract: An arm assembly includes three first arm units connected to a base frame of a parallel robot, a bracket unit disposed below and spaced apart from the base frame, and three second arm units. Each of the second arm units includes a first axle sub-unit journaled to a respective one of the first arm units, a pair of second axle sub-units connected to the first axle sub-unit, a fourth axle sub-unit journaled to the bracket unit, a pair of third axle sub-units connected to the fourth axle sub-unit, and a pair of rod members. Each of the rod members is connected to a respective one of the second axle sub-units and a respective one of the third axle sub-units.

Abstract: A method for forming a metal chalcogenide includes: (a) providing a preliminary precursor solution including a first precursor for an elemental metal of Ag, Au, Al, In, Ga, or Tl, a second precursor for a chalcogen element of Se, S, or Te, and a liquid solvent; (b) heating the preliminary precursor solution under an inert ambient, such that the first precursor reacts with the second precursor to obtain a metal chalcogenide precursor that is in an amorphous phase; (c) removing the liquid solvent from the metal chalcogenide precursor; and (d) heating the metal chalcogenide precursor under a hydrogen-containing gas pressure so as to convert the metal chalcogenide precursor into a single crystal phase metal chalcogenide.

Abstract: A finger-gesticulation hand device includes a base frame representing a metacarpal part of the human hand, and at least three digits mounted on the base frame and appearing to be a thumb and at least two fingers. Each digit has at least two phalange portions respectively linked by two joints which permit a flexing movement of the phalange portions between extended and flexed positions. An actuating cord passes through each digit and is actuated by a solenoid actuator unit to pull the phalange portions of the respective digit to the flexed position. The hand device is simple in construction and capable of making hand gestures in a simple manner.

Abstract: A compliant mechanism includes a first unit, a second unit, at least one elastic member and a driver for driving the elastic member to rotate through a predetermined angle. The first and second units collectively define a passage about which the second unit is rotatable relative to the first unit. The elastic member has a plate and first and second shafts which are coaxially connected to two opposite ends of the plate respectively and rotatably connected with the first and second units respectively. The elastic member is rotatable about a co-axis of the first and second shafts and elastically deformable when the second unit rotates relative to the first unit. The elastic member can change its resistance to the rotation of the second unit by rotating; therefore the compliant mechanism has a great safety upon receiving load and is widely applicable in many fields.

Abstract: A method for controlling temperatures in hot runners of a multi-cavity injection mold, a warning method, and a control system based on those methods are provided, in which a temperature sensor is positioned at the same location as each of the cavities of the mold, one of the cavities is chosen as a standard cavity, and a standard filling time is defined. Besides, in every injection cycle, a calculating and controlling module is to calculate the differences between the standard filling time and the filling times of the cavities, and according to the differences, the temperatures in the hot runners may be adjusted by a temperature-adjusting device and a warning device may be started. So, the volumetric filling of the cavities can be balanced very quickly, the process can avoid fluctuations of external environment so as to reduce the time for product development, and the quality of production can be maintained.

Abstract: A boomerang is made from a flat sheet material, and includes a plurality of blades connected to a central body by a plurality of interconnecting portions, and angularly displaced from one another about a center point. Each blade includes leading and trailing edges that are symmetrical relative to a middle line. Each interconnecting portion extends along a radial axis which intersects the middle line to form an obtuse included angle therewith. Each blade has a bent line that is positioned between the middle line and the trailing edge thereof, and cooperates with the trailing edge to define a bent portion which faces towards the leading edge and which forms an obtuse included angle with a horizontal plane. Varying the position of the bent lines and the included angles of the bent portions can change flight patterns and flight range of the boomerang.

Abstract: A testing device includes a housing having a number of openings formed in a partition for receiving a number of cups. The housing includes an x-axis track, a y-axis track and a z-axis track. A scale is moved along the x-axis track and the y-axis track of the housing to a position below the cups and is elevated to move the cups upward and to measure the changes of the weight of the cups in a suitable time interval. The cups may receive the desiccating agent, water or the plants whose weight are required to be measured frequently.