Abstract: A torque capacity expandable device and method for a torque multiplier are introduced. The device includes a connection sleeve and a torque multiplier. The connection sleeve, fitted to a torque wrench and the torque multiplier and fastened, has a force-applied end corresponding in dimensions to a force-applying end of the torque wrench and has another end corresponding in dimensions to the force-applied end of the torque multiplier. An integral fastening mechanism is integrally fitted to or formed with each of the two ends of the torque multiplier. Its force-applied end fastening mechanism has the same dimensions as the force-applying end fastening mechanism of connection sleeve. Its force-applying end fastening mechanism has the same dimensions as the force-applied end fastening mechanism of a reaction arm disposed at the force-applying end fastening mechanism of torque multiplier.

Abstract: A bolt clamping force transducer for a bolt tightening operation is introduced to tighten a bolted joint by driving a torque rotating shaft in a clamping force transducer, such that a helical mechanism at one end of the torque rotating shaft generates an axial force for pressing a force sensing module and thus generates a strain value thereof. A socket is driven by the other end of the torque rotating shaft, thereby generating a clamping force under which the bolted joint of a specific specification is tightened. A parameter relation between the strain value and the clamping force is calibrated with a standard axial force gauge to facilitate calculation and control of the clamping force during the tightening process where the bolted joint fitted to any torque tool is sensed to control the precision of the clamping force being exerted on the bolted joint, thereby enhancing the quality thereof.

Abstract: A bolt clamping force sensing washer includes a sensing washer, connection line assembly, and signal processor. The sensing washer includes a body, sensing component, and bushing. The body has an axial hole that matches outer diameter of a bolt's thread. The circumferential surface of the body has a circumferential groove for receiving the sensing component which measures a deformation signal generated by the body under an axial load. Two end surfaces of the body are perpendicular to the axial hole and each have a loosening-proof structure. The bushing is made of metal or plastic or formed by plastic insulating material casting to enclose the sensing component. The signal processor has a signal amplifier, microprocessor, pairing switch, power circuit unit, signal transmission unit, memory unit, RF antenna and alert unit. The connection line assembly is disposed at the bushing to electrically connect the sensing component and signal processor.

Abstract: A torque control method and apparatus for bolt tightening within predetermined rounds are provided. The method includes the following steps: connecting a torque control apparatus between an air supply system and a torque tool; generating a plurality of flow sets by the torque control apparatus according to the maximum air consumption of the torque tool under loading; obtaining the highest and lowest working air pressures and the corresponding maximum and minimum torque values according to each flow set, thereby constructing a relation curve between a plurality of working air pressure values and torque values; and obtaining the maximum controlling range under a working air pressure condition that the torque tool can be normally operated according to a relation curve between a plurality of working air pressures and torque values.

Abstract: A method of torque control and a torque control apparatus for a pneumatic torque tool are provided. The method includes: connecting a torque control apparatus between an air supply system and a pneumatic torque tool; under predetermined working and control conditions, driving the pneumatic torque tool at the first and second working air pressures to calibrate output torque, and to obtain maximum and minimum torque values; constructing correspondence relationship between air pressure and torque value based on the first and second working air pressures and the maximum and minimum torque values obtained; entering any target torque value ranging from minimum torque value to maximum torque value of the correspondence relationship to obtain a corresponding working air pressure value and drive the pneumatic torque tool; and verifying whether all working and control conditions are controlled within a predetermined range of variation to control the output torque.

Abstract: A torque-sensing and transmitting device is provided. The device includes a transmission body, two vibration-damping members, two inner casings, two outer casings, a first circuit board module, and a battery module. The two inner casings are disposed on a shaft of the transmission body, and a vibration-damping member is disposed between the inner casing and the shaft. The first circuit board module is disposed in one of the two inner casings, and the first circuit board module is covered by a vibration-damping layer. The battery module is disposed on the other inner casing, and the battery module is covered by a vibration-damping layer. With the configuration of the vibration-damping member and the vibration-damping layer, this device solves the problem of the first circuit board module and the battery module being damaged due to vibration.

Abstract: A power supply and signal transmitting device for a sensing bolt and sensing bolt device is provided. The power supply and signal transmitting device, which is applied to the sensing bolt including a first contact set, includes a cap module and a supply module. The cap module caps one end of the sensing bolt and includes a cap circuit board module. A second contact set of the cap circuit board module contacts the first contact set for electrically connecting the sensing bolt. The supply module is interposed into the cap module for supplying an external power to the sensing bolt or accessing the data stored in the sensing bolt by electrically connecting a third contact set of the cap circuit board module with a fourth contact set of the supply module. Thereby, the power duration of the sensing bolt may be improved.

Abstract: In a torque control system and method for power impact torque tool, first establish a curve showing the relationship between the high/low working voltages of the tool in normal operation and the high/low torque values that are correspondingly output by the tool at the high/low working voltages. Input a target torque value that falls between the highest and the lowest torque value on the relationship curve to obtain a working voltage corresponding to the target torque value for performing a tightening operation. During the tightening process, a microprocessor of a torque control device receives and uses sensing signals instantly and continuously sent by a torque sensing device and changes in voltage, current and motor temperature continuously detected by a voltage/current sensing element and a temperature sensing element to stably control, via a voltage control module, the working voltage within a preset allowable range of variation for tightening torque control.

Abstract: A socket having functions of torque sensing, angle sensing, and signal transmitting is provided. The socket includes a socket body, a circuit board module, a deformation strain sensing unit, an output/input module, a power supply module, and a protection device. Wherein, the socket body has variable structures to accommodate the circuit board module, the deformation strain sensing unit, the power supply module and the output/input module, and to protect the accommodated elements by the protection device. Accordingly, the socket has the functions of torque sensing, angle sensing, and signal transmitting.

Abstract: A method of torque control and a torque control apparatus for a pneumatic torque tool are provided. The method includes: connecting a torque control apparatus between an air supply system and a pneumatic torque tool; under predetermined working and control conditions, driving the pneumatic torque tool at the first and second working air pressures to calibrate output torque, and to obtain maximum and minimum torque values; constructing correspondence curve between air pressure and torque value based on the first and second working air pressures and the maximum and minimum torque values obtained; entering any target torque value ranging from minimum torque value to maximum torque value of the correspondence curve to obtain a corresponding working air pressure value and drive the pneumatic torque tool; and verifying whether all working and control conditions are controlled within a predetermined range of variation to control the output torque.

Abstract: An apparatus and control system of a programmable air servo motor includes an air servo motor and an air servo motor driver, which are bi-directionally communicable with each other via communication units. The air servo motor includes an air motor, a sensor module, and a brake module that is normally locked and can be unlocked or locked by the air servo motor driver. The air servo motor driver includes a control module, an actuation module and a communication module. After actuating the air servo motor, the air servo motor driver receives torque, rotational speed and angle signals output by the sensor module. The actuation module drives the air servo motor to stop emergently, switch between forward and reverse rotation, increase or reduce rotational speed, operate at a specific angle, move by inching and operate at controlled torque similar to an electric servo motor without the need of an encoder.

Abstract: Provided herein is a monitoring system and method for a bolting operation, during which a torque tool is coupled to a torque sensing and transmitting adapter disposed of with an RFID reader or a middle device to read the information in the RFID tag attached to each bolt following the preset bolting sequence. After receiving the information, a torque control device evaluates whether the bolts are valid and memorizes the bolting sequence, edits and stores in the memory. The torque control device continuously monitors whether the operator does follow the programmed bolting sequence and the bolting mode to fasten the bolt with target torque value and issues a warning if otherwise. Meanwhile, the torque control device writes the bolting information in the tag or stores the information in a peripheral server or in a cloud server via the Internet for later inquiry.

Abstract: A method of torque control and a torque control apparatus for a pneumatic torque tool are provided. The method includes: connecting a torque control apparatus between an air supply system and a pneumatic torque tool; under predetermined working and control conditions, driving the pneumatic torque tool at the first and second working air pressures to calibrate output torque, and to obtain maximum and minimum torque values; constructing correspondence curve between air pressure and torque value based on the first and second working air pressures and the maximum and minimum torque values obtained; entering any target torque value ranging from minimum torque value to maximum torque value of the correspondence curve to obtain a corresponding working air pressure value and drive the pneumatic torque tool; and verifying whether all working and control conditions are controlled within a predetermined range of variation to control the output torque.

Abstract: This invention discloses an apparatus capable of controlling, tracking and measuring the tightening torque and the locking force and a method thereof. The device comprises a control device, a transducing device, and a sensing device. The transducing device comprises a second connector and a first signal transmitter. The control device communicates with the transducing device through a second signal transmitter and the first signal transmitter wiredly or wirelessly. The sensing device comprises a first connector and a sensor, and electrically connects to the transducing device through the second connector and the first connector. The sensing device senses the torque applied to a fastener to transmit real-time sensing data to the control device. The control device compares the real-time sensing data with a setting value so as to measure, control or track the locking force or tightening torque applied to the fastener in real time.

Abstract: In a programmable torque control method for sensing locking element, at least one sensing locking element and a power torque tool are provided. A s sensed strain signal produced by the sensing locking element is transmitted to a controller of the power torque tool when the sensing locking element is driven by a power torque tool to a desired position and forward and backward rotations of a driving motor of the power torque tool are controlled by the controller, and the forward or backward rotation of the driving motor is determined according to the s sensed strain signal to control a programmable continuous motion until the tightening torque or clamping force reaches to a predetermined target torque value.

Abstract: A method and mechanism of the indirect coupling torque control provides a rotary impact mechanism driving a rotary drive mechanism linked between the rotary impact mechanism and a fastener member, when the rotary impact mechanism rotates the fastener member. The rotary drive mechanism can accumulate a rotation stress generated by the rotary impact mechanism to rotate the fastener member. When the rotation stress accumulated in the rotary drive mechanism is larger than the torque value applied to the fastener member, a linear relation between a sensed signal measured from the stress accumulated in the rotary drive mechanism and the torque value applied to the fastener member is provided. Whereby the linear relation is used to control the torque valued applied to the fastener member when the rotary impact mechanism is rotating.

Abstract: The present invention generally relates to an air control module unit for a portable pneumatic tool, more particularly, to an air control module unit that actuates a valve stem inside an air inlet block of the air inlet module by a correspondent air bleed valve in the air actuation module. The air control module unit for a portable pneumatic tool comprising: an air inlet module, which has at least one valve stem inside an air inlet block, the air inlet block having plug screws on both ends towards the valve stem and one plug screw on the intersectional direction of the valve stem with at least one air inlet port opening for hooking up the compressed air; an air actuation module having a bleed valve inside the valve block; a plurality of flexible air hoses with a plurality of dimensions and being prepared for connecting the air inlet module and air actuation module; and a plurality of hose connectors and rubber seats with a plurality of types for connecting the air inlet module and the air operation module.

Abstract: A portable pneumatic tool includes a housing composed of two symmetric half shells or several partially cut-away shells; an air inlet module unit, a valve actuating module unit and an operating (or functioning) module unit fluidically communicated with one another and connected with flexible hoses among the module units; and a shock-absorbing unit retained between the operating module unit and the housing; whereby upon embedding or fixation of all the module units into the corresponding cavities in the shells and upon combination of the shells, a portable pneumatic tool will be instantly obtained having advantages of light weight, shock-absorbable property, easy assembly, lower production cost and convenient maintenance.