Abstract: A friction spot joining device configured to carry out friction spot joining of a pair of plates includes an advance-retreat drive configured to advance and retreat a tool to/from the plates a rotation drive configured to rotate the tool, and a controller configured to control the advance-retreat drive and the rotation drive. The controller executes a joining control in which the tool is caused to give pressure to the plates while the tool is rotated so that the tool is pushed into the plates, and a separating control in which the tool is separated from the plates when an integrated value (P=ID×?T) calculated using a current value (ID) of the rotation drive during the joining control and a driving period of time (?T) during the joining control is determined to be reached a target value.

Abstract: First steel material, a carbon sheet, and second steel material are put in a state of being separated from each other, and bonding parts are heated by, for example, applying current from a power supply to the carbon sheet. Alternatively, the bonding parts may be heated by an inductive heating coil. Thereafter, heating is terminated if the bonding parts reaching greater than or equal to the eutectic point and less than the liquidus line temperature is detected in the Fe—C phase diagram. Furthermore, the carbon sheet is made to be sandwiched between the first steel material and the second steel material.

Abstract: The present invention relates to nanoprocessing and heterostructuring of silk. It has been shown that few-cycle femtosecond pulses are ideal for controlled nanoprocessing and heterostructuring of silk in air. Two qualitatively different responses, ablation and bulging, were observed for high and low laser fluence, respectively. Using this approach, new classes of silk-based functional topological microstructures and heterostructures which can be optically propelled in air as well as on fluids remotely with good control have been fabricated.

Abstract: A SiC wafer is produced from a single crystal SiC ingot. Wafer producing apparatus includes a holding unit for holding the ingot, a flattening unit for grinding the upper surface of the ingot, thereby flattening the upper surface, a laser applying unit for setting the focal point of a laser beam having a transmission wavelength to the ingot inside the ingot at a predetermined depth from the upper surface of the ingot, the predetermined depth corresponding to the thickness of the wafer to be produced, and next applying the laser beam to the ingot to thereby form a separation layer for separating the wafer from the ingot, a wafer separating unit for holding the upper surface of the ingot to separate the wafer from the ingot along the separation layer, and a wafer storing unit for storing the wafer separated from the ingot.

Abstract: Provided is a method for machining micro-holes in a metal or alloy product which relates to the field of micro-hole machining. The method reduces the duration of ejection of primary plasma and the residuals produced during the ejection of the primary plasma, improves the smoothness of the hole wall of the micro-hole, and increases the depth limit of the micro-hole. Injecting energy by low-energy pulse laser in two attempts further facilitates the reduction of the diameter of the micro-hole and reduces the possibility of cracks, compared with injection same energy by single high-energy pulse laser. Moreover, a ratio between the diameter of the central ring of the ring spot formed by the focused second laser beam and the diameter of the central ring of the Gaussian spot formed by the focused first laser beam is greater than 1, which can improve the injection efficiency of laser energy.

Abstract: Fabricating a capacitor includes performing an oxide formation operation on a sheet of material. The oxide formation operation forms an anode metal oxide on an anode metal. A thermal compression is performed on the sheet of material after the oxide formation operation is performed. The thermal compression applies thermal energy to the sheet of material while applying pressure to the sheet of material. After the thermal compression, the capacitor is assembled such that at least one electrode in the capacitor includes at least a portion of the sheet of material.

Abstract: A laser machining apparatus includes a scanner head having at least two galvanometer mirrors and galvano motors, a moving means for moving the scanner head, a movement control apparatus for controlling the moving means, and a scanner control apparatus having a galvano motor control unit for controlling rotational driving angles of the galvano motors. The movement control apparatus has a rotation angle detection unit for detecting a rotation angle of the scanner head with respect to the moving direction. The scanner control apparatus has a mirror angle calculation unit for calculating, from data on the rotation angle, rotational driving angles of the mirrors so that an intersecting direction of the laser beam corresponds to a predetermined direction with respect to the moving direction. The galvano motor control unit controls the galvano motors so that the rotational driving angles calculated by the mirror angle calculation unit are set.

Abstract: The invention relates to a laser nozzle that can be used in laser cutting, notably with a fibre or disc laser, comprising a nozzle body comprising an axial housing passing axially through said nozzle body and comprising a first outlet orifice situated at the front face of the nozzle body, and a movable element comprising a skirt-forming front part arranged in the axial housing of the nozzle body, said movable element being capable of translational movement in the axial housing of the nozzle body and comprising an axial passage with a second outlet orifice opening onto the skirt-forming front part.

Abstract: Disclosed is a laser beam processing device, the main part of which is a coupling device (1) for coupling a focused laser beam (2) into a fluid jet (3) of a defined cross-section. The coupling device (1) comprises a housing (4), in which a fluid nozzle is configured for forming the fluid jet (3). In addition, an outlet opening (6) is provided in the housing, through which the fluid jet (3) exits from the housing (4) and the cross-section of which is larger than the cross-section of the fluid jet (3). A passage chamber is provided between the fluid nozzle (5) and the outlet opening (6) for the fluid jet (3).

Abstract: Laser nozzle usable for laser cutting, especially with a fiber or disk laser, comprising: a nozzle body comprising an axial housing passing axially through the nozzle body and comprising a first output orifice located in the front side of the nozzle body; a movable element able to move in translation in the axial housing in the direction of the first output orifice under the effect of a gas pressure acting on the movable element; and an elastic element arranged in the axial housing, between the nozzle body and the movable element, the elastic element exercising an elastic return force on the movable element tending to oppose the translation movement in the axial housing in the direction of the first output orifice.

Abstract: A method is disclosed for joining two components (1, 2), a first component (1) and a second component (2), in the region of a joint zone by means of at least one laser beam. In a first phase, the first component (1) is melted, and a melt lens is formed in the first component (1) from the molten material (9). In a second phase, at least one pressure pulse is applied to the melt in the direction of the second component (2) until the melt lens is deflected into the joint gap as a result of the pressure pulse, bridges the joint gap, and comes into contact with the second component (2), and energy is transmitted to the second component (2) as a result of the melt lens coming into contact with the second component. A temperature curve results in the second component (2) as a result of the energy transmission such that the melting temperature is reached on the upper face of the second component (2), and a melt film is formed.

Abstract: A laser processing head includes first and second contact points connected to a power source. The power source generates a current to flow through an electrode wire between the first and second contact points to heat the electrode wire. A laser source generates one or more laser beams having lasing power sufficient to at least partially melt the electrode wire. A coaxial laser head focuses the one or more laser beams at one or more focal points on a workpiece to at least partially melt the electrode wire.

Abstract: In order to cut a plurality of clumps having an approximately uniform shapes and approximately uniform dimensions out of a cell aggregate which has proliferated and appropriately eliminate contamination with fragments of different shapes or dimensions, when cutting the clumps of approximately uniform shape out of the cell aggregate which has proliferated, cutting lines along which the clumps of a specific shape are cut out are set such that the area of a peripheral part of the cell aggregate which is not cut by the cutting line exceeds the surface area of one of the clumps, and the cell aggregate is cut by irradiating with laser light in such a way as to trace the cutting lines.

Abstract: Disclosed is a device for protecting the back wall of a fuel injector nozzle during drilling of nozzle holes.

Abstract: Methods and tools for manufacturing reinforced structural components are described. The methods comprise providing a structural component having a steel substrate and a metal coating layer. The method further comprises selecting a reinforcement zone of the structural component, guiding a first laser beam to ablate at least a part of the coating layer of the reinforcement zone, locally depositing a reinforcement material on the ablated reinforcement zone to create a local reinforcement on a first side of the structural component, wherein locally depositing a material on the reinforcement zone comprises supplying a reinforcement material to the ablated reinforcement zone, and substantially simultaneously applying laser heating using a second laser beam to melt the reinforcement material and part of the steel substrate of the ablated reinforcement zone to mix the melted reinforcement material with the melted part of the steel substrate.

Abstract: This disclosure relates to protective glass, for installation in laser tools of laser processing machines, comprising a transponder in which data relating to the protective glass are stored in a contactlessly readable fashion and/or can be contactlessly stored. A grip carrying the transponder is fastened as an installation aid directly on circumferential surface of the protective glass.

Abstract: A method of manufacturing a tubular member for an automotive application that includes providing a flat workpiece of a material; forming at least one lance in the flat workpiece; roll-forming the flat workpiece into a tubular configuration; induction welding a seam of the tubular workpiece after the roll-forming; and trimming the tubular workpiece through the lance after welding the seam.

Abstract: The present invention discloses a Fluid End and its manufacturing method. The conventional fluid end manufacturing methods involve machining of all surfaces. This demands more input stock for manufacturing process and a lot of material wastage during machining process. In the conventional processes involving open die forging followed by machining result into only about 34% utilization of material. In the present invention, fluid end component geometry is optimized. Assembly surfaces are machined whereas other or non-assembly surfaces are as-forged condition. The method of invention also results in significant reduction in machining time and chip removal. The present invention also discloses a process of manufacturing using a combination of open die and closed die forging, and machining.

Abstract: A method for positioning a cam element on a shaft segment of a camshaft with an assembly aid element may comprise arranging the shaft segment relative to a first tool such that a first distal shaft segment end of the shaft segment lies flush against a surface of the tool that is directed towards the shaft segment; arranging the cam element on the shaft segment in a pre-position; arranging a first distal end of the assembly aid element to contact the surface of the first tool that is directed towards the shaft segment such that the assembly aid element forms a defined distance to the first tool along a shaft-segment longitudinal axis; and moving a second tool at least in sections along the longitudinal axis until the second tool contacts a second distal end of the assembly aid element, and pushing the cam element by means of the second tool to a final position.

Abstract: An automatic manufacturing device and a manufacturing method for workpieces, in particular for bodywork components, which has at least one program-controlled manufacturing means and a working point. Arranged in the manufacturing device is a conveying path for a conveying means having a load-receiving means for a workpiece and/or for a tool. The path extends through the manufacturing device and through the working point, wherein, at the working point, a storage carrier for a workpiece is arranged at a vertical distance from the conveying path.

Abstract: The invention relates to a machine tool for the machining of a workpiece by means of a tool, wherein the machine tool is designed to clamp the tool for the machine-controlled machining within a machining program on the work spindle and to clamp the tool on the machine bench of the machine tool, characterized by a tool magazine which can be secured on the machine bench, on which a tool or a plurality of tools may be clamped individually in a replaceable manner.

Abstract: An intellectual automatic tool changer (ATC) speed moderating system, which is disposed between a tool magazine and a tool exchanging arm, includes an image capture device for capturing the image of tools, and a processing device connected with the image capturing device. The processing device includes a receiving module for receiving the images of tools, a calculating module for calculating an assessment value of a tool according to the image of the tool, and a signal transmitting module connected with a controller of the tool exchanging arm for transmitting the assessment value of the tool to the controller. Therefore, the tool changing speed of the tool changing arm is controlled and moderated.

Abstract: A mortise and tenon jig includes a base plate, a router support plate attached to an upper surface of the base plate such that the router support plate includes an opening, and a guide attached to the router support plate. The guide may include a first end and a second end. The first end includes a mortise guide surface, and the second end includes a tenon guide surface. The mortise and tenon jig also includes a first configuration where the mortise guide surface is aligned with the opening and a second configuration where the tenon guide surface is aligned with the opening.

Abstract: The disclosure relates to a lubrication and cooling device (1), comprising; a cooling fluid device (3), which comprises a first channel (5), which is connected to a first inlet port (7), and a lubricant fluid device (9), which comprises a second channel (11), which is connected to a second inlet port (13). The lubrication and cooling device (1) further comprises a heat exchanger (15), which comprises a cooling circuit (17) and a lubricant delivery circuit (19). The heat exchanger (15) is arranged to cool the lubricant fluid (24) by means of the cooling fluid (22), wherein the cooling fluid is a cryogenic fluid. The disclosure further relates to a method for lubricating and cooling a workpiece or a process by using a lubrication and cooling device (1), wherein the method comprises the steps of: a) cooling the lubricant fluid (24 by means of the cooling fluid (22) using the heat exchanger (15), and b) providing the cooled lubricant fluid (24) to the workpiece or process being lubricated and cooled.

Abstract: A machine tool is configured so that: a first frequency band comprising the main shaft characteristic vibration frequency and a second frequency band comprising the mechanical structure characteristic vibration frequency are set; thresholds are stored for each of the set frequency bands; vibration components are extracted for each of the frequency bands from the output of a vibration sensor; and when the vibration amplitude exceeds a threshold in either of the frequency bands, an alarm is sounded.

Abstract: The present invention relates to a machine tool 100 for machining a workpiece 12 by means of a tool 22, which comprises a clamping means 11 for clamping the workpiece 12 and a support means 21 for receiving the tool 22, wherein the clamping means 11 is mounted on a spindle head of a clamping means-carrying work spindle 10 and the support means 21 is mounted on a spindle head of a support means-carrying work spindle 20, and the machine tool 100 is designed to position the two work spindles 10, 20 by means of numerically controllable axes in relation to one another in such a way that the workpiece 12, which is clamped in the clamping means 11, can be processed by the tool 22, which is received in the support means 21.

Abstract: A skate blade sharpening system used to sharpen the blades of ice skates. The skate sharpener can include a housing that includes an elongated slot for receiving the blade of an ice skate for sharpening, and clamp jaws for retaining the skate. The housing can include at least one slot cover to engage the skate blade. Engagement of the skate blade can be sensed by a controller to enable sharpening operations to proceed. The skate blade sharpening system can automatically operate a grinding wheel and move the rotating grinding wheel back and forth along the lower face of the skate blade a desired number of times to sharpen the skate blade.

Abstract: A sharpening device. In one aspect, the sharpening device includes: a sharpening assembly including a sharpening unit and a rod coupled to the sharpening assembly; a retainer assembly; a coupler for coupling the sharpening assembly to the retainer assembly; an attachment device coupled to the retainer assembly for coupling the retainer assembly to a head of a blade to be sharpened.

Abstract: A method includes: (a) actively cooling an outer surface of a workpiece until the outer surface reaches a predetermined surface temperature; and (b) sanding the outer surface of the workpiece when the outer surface of the workpiece has reached the predetermined surface temperature.

Abstract: A tool is provided for stabilizing a position of a shaft disposed within a casing and rotatably supported by a pair of bearings that are spaced-apart from one another and located within the casing. The tool includes an arcuately-shaped shoe that is located between the pair of bearings and releasably connected to the casing. The shoe has a concave surface defining a radius corresponding to a radius of the shaft. The shoe is resiliently biased away from the casing for facilitating the concave surface of the shoe to radially abut with a portion of an outer circumference of the shaft.

Abstract: The present invention provides a chemical mechanical (CMP) polishing pad for planarizing at least one of semiconductor, optical and magnetic substrates comprising a polishing layer that has a geometric center, and in the polishing layer a plurality of offset circumferential grooves, such as circular or polygonal grooves, which have a plurality of geometric centers and not a common geometric center. In the polishing layer of the present invention, each circumferential groove is set apart a pitch distance from its nearest or adjacent circumferential groove or grooves; for example, the pitch increases on the half or hemisphere of the polishing layer that is farthest from the geometric center of its innermost circumferential groove and decreases on the half of the polishing layer nearest that geometric center. Preferably, the polishing layer contains an outermost circumferential groove that is complete and continuous.

Abstract: A grinding tool includes a substrate and a plurality of abrasive particles. The substrate has a first and a second surface and a plurality of holes, each of the holes extending through the substrate and respectively having a first and a second opening on the first and second surface, the second opening being larger than the first opening. The abrasive particles are respectively disposed in the holes and attached to the substrate via a plurality of adhesive portions, each of the abrasive particles having a tip protruding outward from the first surface and a remaining part covered with one of the adhesive portions inside the corresponding hole, wherein the first openings of the holes are smaller than the abrasive particles, and the abrasive particles are respectively retained in the holes. Moreover, embodiments described herein include a method of fabricating a grinding tool.

Abstract: A multi-angle two-dimensional ultrasonic vibration assisted nanofluid micro-lubrication grinding device includes a workpiece fixture for clamping a workpiece and a grinding wheel for grinding the workpiece, the fixture being connected with a two-dimensional ultrasonic vibration device to maintain the sharpness of the grinding wheel cutting edge and cool the grinding temperature on the workpiece surface; a jetting mechanism used for jetting nanofluid to the workpiece is arranged on one side of the grinding wheel so as to form two-dimensional ultrasonic vibration and nanofluid micro-lubrication grinding coupling; the device applies the variable-angle two-dimensional ultrasonic vibration technology to grinding processing, and adjusts the angles of two ultrasonic vibrators to generate different combined vibration directions to change the relative movement trajectories of abrasive particles and a workpiece.

Abstract: A shot peening device includes a turntable which rotates about a revolution axis, holding mechanism which moves with the turntable, pressure mechanism which compresses a coil spring, rotation mechanism which rotates the coil spring, projection mechanism which projects shots to the compressed coil spring, load cell which detects a load applied to the coil spring, and controller. A signal output from the load cell is input to the controller, and the controller detects a chronological change of the load applied to the coil spring during the shot peening.

Abstract: A coil spring processing device includes an end positioning device, shot peening device, and controller. The end positioning device positions ends of a coil spring. The shot peening device includes a turntable mechanism, pressure mechanism, rotation mechanism which rotates the coil spring, and projection mechanism which projects shots. Holding mechanisms each include a lower shifting prevention jig and an upper shifting prevention jig. The controller stops a first holding mechanism and a second holding mechanism in rotation stop positions corresponding to end turn portions of the coil spring.

Abstract: An outer blade cutting wheel includes an annular thin disc base and a blade section of bonded abrasive grains formed on the periphery of the base. The blade section includes widthwise side portions each of which is provided with channels extending from an inner perimeter to an outer perimeter of the blade section. The cutting wheel is capable of cutoff machining at a high feed speed while maintaining a high accuracy and a low cutting load.

Abstract: An outer blade cutting wheel is provided comprising an annular thin disc base and a blade section of bonded abrasive grains on the periphery of the base. Provided that an imaginary range is delineated by two imaginary planes extending parallel to the planar surfaces of the base and tangent to widthwise side portions of the blade section and two imaginary circumferences defined about the rotational axis and extending tangent to inner and outer perimeters of the blade section, the blade section occupies 10-40% by volume of the imaginary range minus the region of the base, and the widthwise side portions of the blade section have a dented shape relative to the imaginary planes. The cutting wheel is capable of cutoff machining at a high feed speed while maintaining a high accuracy and a low cutting load.

Abstract: A system for retaining a vehicular component for painting includes a magnetic fixturing element configured to detachably attach at the vehicular component that is to be painted. The magnetic fixturing element comprises a magnetic element. A fixture includes metallic structure that is configured to engage the magnetic fixturing element. With the fixture engaged with the magnetic fixturing element, the component is magnetically retained at the fixture for painting. With the fixture engaged with the magnetic fixturing element, the component is painted by a painting device of the system. After the component that is magnetically retained at the fixture is painted, the magnetic fixturing element is removable from the component and reusable on other components to be magnetically retained at the fixture and painted.

Abstract: A screw bit body which allows for efficient torque force application onto a socket fastener. The screw bit body includes a plurality of laterally-bracing sidewalls, a first base, and a second base. The laterally-bracing sidewalls are radially distributed about a rotation axis of the screw bit body with each further including a first lateral edge, a second lateral edge, a bracing surface, and an engagement cavity. The engagement cavity creates an additional gripping point to prevent slippage in between the screw bit body and the socket fastener. The engagement cavity traverses normal and into the bracing surface. Additionally, the engagement cavity traverses into the screw bit body from the first base to the second base. The engagement cavity is specifically positioned offset from the first lateral edge by a first distance.

Abstract: A power driven direct drive ratchet/wrench tool allows a user to tighten and loosen fasteners in tight spaces efficiently and effectively. The tool includes a tool housing, a engagement body, a spur gear, a drive shaft, and a plurality of drive pins. The tool housing acts as the structural element and includes a ratchet head, a tubular handle, and a gear-receiving cavity. The ratchet head is terminally connected to the tubular handle. The gear-receiving cavity laterally traverses into the ratchet head and houses the spur gear and the engagement body. The drive shaft is rotatably mounted within the tubular handle. The plurality of drive pins is connected to a proximal base of the drive shaft, about a rotation axis of the drive shaft. In order to transmit torque, an at least one arbitrary pin from the plurality of drive pins is mechanically engaged to the spur gear.

Abstract: A tool adapter includes a main body having a first engaging end adapted to engage with the power tool and a second engaging end adapted to receive the driving head respectively and a device adapted to retain the driving head. The second engaging end includes a receptacle adapted to receive the driving head. The main body includes a hole communicated with the receptacle. The hole extends radially from the receptacle to an outer periphery of the main body. The outer periphery of the main body includes a first threaded portion. The device includes a retaining member disposed in the hole and a sleeve mounted on the outer periphery of the main body and threadedly engaged with the first threaded portion. An inner periphery of the sleeve includes a second threaded portion engaged with the first threaded portion and an interacting portion adapted to interact with the retaining member.

Abstract: A tool bit adapter having a magnetic attraction effect includes a shank having one end for connection to a power tool and an opposite end provided with an adapter block that defines therein an accommodation chamber for accommodating a tool bit and a position-limiting groove and an abutment portion in the accommodation chamber, and a movable block movably mounted in the position-limiting groove and provided with a magnetic attraction member that provides a magnetic attractive force toward the inserted tool bit for causing the movable block to move from a first position where the magnetic attraction end of the magnetic attraction member is disposed at an inner side relative to the abutment portion to a second position wherein the magnetic attraction end of the magnetic attraction member is kept in flush with the abutment portion or disposed outside the abutment portion to attract the tool bit positive in place.

Abstract: A method for filtering data derived from a process wherein the data is generated by an input of energy. The method includes these steps: collecting the data from the process to create a parent data set; creating a first window of data; calculating an average of the first window of data; comparing the average of the first window of data to a first threshold value; shifting the first window if the average has not passed the first threshold value; creating a second window of data from the parent data set; calculating an average of the second window of data; comparing the average of the second window of data to the threshold value; shifting the second window if the average of the second window of data has not passed the threshold value; and confirming that the threshold value has been reached if the second window average has passed the threshold value.

Abstract: A method for detecting deviations between an actual angular displacement in a screw joint being tightened by an impulse type power wrench and an angular displacement measured between a power wrench housing and an impulse unit of the power wrench, includes determining a first angular interval (??1) between an end point (AE) of a first delivered impulse (A) and an end point (BE) of a succeeding second delivered impulse (B), determining a second angular interval (??2) between a start point (Bs) of the second delivered impulse (B) and a start point (CS) of a succeeding third delivered impulse (C), comparing (??1) with (??2) to determine a difference between the intervals, and determining that a deviation exists between the actual angular displacement in the screw joint and the angular displacement measured between the power wrench housing and the impulse unit based on the determined difference between the intervals (??1 and ??2).

Abstract: A torque limit apparatus includes a user interface device that receives a speed setting value and a torque setting value of a motor from a user and outputs a state of the motor and a motor control device that controls a speed of the motor depending on speed set by the user and to interrupt an operation of the motor when torque of the motor reaches torque set by the user.

Abstract: An electronic torque wrench with sensing structure includes a tubular body, a working head and at least one sensing element. The working head includes a head section and a connection section secured in the front end of the tubular body. The head section is positioned at the front end of the tubular body. The sensing element is disposed on an outer circumference of the tubular body. Accordingly, the length of the connection section of the working head is greatly shortened and the internal structure of the tubular body is simplified to lower the material cost and manufacturing cost. In addition, the weight of the torque wrench is reduced and the sensing precision of the sensing element is enhanced, whereby a user can more easily hold the torque wrench and more smoothly use the torque wrench to enhance the whole benefit of the torque wrench.

Abstract: A releasable self-locking device which may be installed upon a central shaft (such as a hexagonal shaft), such that it can freely slide along the shaft in a first direction, but provides releasable locking engagement along the shaft in a second direction. The use of such a releasable self-locking device in combination with a hexagonal shaft as a bushing removal and bushing installation tool.

Abstract: A system for removal of Moen cartridges or cores and sleeves from plumbing valve bodies is facilitated with a tool having concave, cylindrical billed jaws on a vise-grip pair of pliers and a specially built extraction tool on the screw end of the vise-grip. The outer shape of the billed jaws matches the outer diameter of the cartridge's core. The tool's bills lock on the inner core of the cartridge. Ideally the inner core and outer sleeve will both be extracted with the tool's bills. When conditions are not ideal due to hardened or broken o-rings and corrosion, rotating the tool and cartridge are required to free them from the valve body. The Pasco stem and cartridge puller attached to the screw end of the vise-grips is used to extract the outer sleeve of the cartridge after the inner core has been removed.

Abstract: A nail gun structure includes a body portion including a punch portion; an air cylinder between the body portion and a swaying clamp arm, and having a telescopic rod pivotally connected with the clamp arm, the air cylinder having a piston, a first bore and a second bore disposed along an axial direction of the telescopic rod, the piston connected with the telescopic rod and reciprocating to control the communication of the second bore; and a control valve disposed between the air cylinder and the body portion, and having a tube set connected with an air source and also between the air cylinder and the body portion. When the air source and the tube set communicate with the first bore, the piston moves to allow the communication of the second bore. After the clamp arm clamping a wooden board, the punch portion punches to launch the nail.

Abstract: Fastening devices and methods of utilizing the same. The fastening devices include a handle, a trigger mechanism, a fastener magazine, a fastening head, and a tab feed structure. The tab feed structure includes a tab magazine, a feed rail, and a tab advance mechanism. The tab magazine is configured to contain an accordion-folded stack of tabs, which is defined by a first subset of a plurality of interconnected tabs. The fasting device is configured to, upon actuation of the trigger mechanism, urge a fastener through a leading tab of the plurality of interconnected tabs and into a workpiece to operatively affix the leading tab to the workpiece and also to advance a tab strip, which is defined by a second subset of the plurality of interconnected tabs, toward a fastening region with the tab advance mechanism. The methods include methods of utilizing and/or loading the fastening device.