Disclosed is a joining method of members, which includes the steps of: preparing a first member in which a first hole portion having a polygonal cross-sectional shape is formed, and a second member having a hollow shape, wherein the second member has a cross-sectional shape corresponding to the polygonal cross-sectional shape of the first hole portion, the second member including a plurality of straight line portions extending linearly and corner portions positioned between the adjacent two straight line portions in the cross-sectional shape; inserting the second member into the first hole portion of the first member; and caulking and joining the second member to the first member by enlarging and deforming the corner portions.

Techniques for implementing and/or operating a deployment system that includes a vehicle frame of a deployment vehicle, a drive sub-system, which includes wheels secured to the vehicle frame, a swage machine, and a fluid power sub-system. The swage machine includes a grab plate, which interlocks with a grab notch on a pipe fitting to be secured to a pipe segment, which includes tubing that defines a pipe bore and a fluid conduit implemented in an annulus of the tubing, a die plate including a die, and a fluid actuator that actuates the grab plate toward the die plate to facilitate conformally deforming a fitting jacket of the pipe fitting around the tubing of the pipe segment. The fluid power sub-system selectively powers the drive sub-system or the swage machine based on a target operation to be performed by the deployment vehicle.

A rotary bit configured to deburr and swage an end of a tube, comprising a first end configured to deburr and swage the end of the tube, and a second end configured to be secured to a rotary device, wherein the first end includes a plurality of blades that extend axially along the first end and radially outward from the rotary bit, the plurality of blades including a plurality of leading blades and a plurality of finishing blades, the leading blades configured to initially deburr and swage the end of the tube upon insertion of the rotary bit into the end of the tube, and the finishing blades configured to complete deburring and swaging of the end of the tube, the finishing blades extending radially outward from the rotary bit to a greater extent than the leading blades.

A pressing tool, particularly a pipe pressing tool, for plastically deforming a tubular workpiece, particularly a fitting, is described. The pressing tool includes pressing jaws and a motor which is adapted to drive the pressing jaws in order to apply a force to the workpiece. Further, a method of operating such a pressing tool, and pressing jaws as well as a tubular workpiece are described.

Crimping pliers include a clamping assembly including a left jaw and a right jaw, a control mechanism, and a rotating button mechanism. The left jaw includes a left connecting portion and a left head. The right jaw includes a right connecting portion and a right head. The control mechanism drives the clamping assembly to switch between a clamping state and an open state. The rotating button mechanism includes a first connecting plate connected to the right connecting portion, an eccentric shaft, a rotating button connected to the eccentric shaft, and a limiting structure connected to the rotating button to limit a rotating range of the rotating button. The first connecting plate is rotatably connected to the left connecting portion through the eccentric shaft. The rotating button adjusts a distance between the left connecting portion and the right connecting portion by driving the eccentric shaft to eccentrically rotate.

Techniques for implementing and/or operating a system that includes a pipe fitting to be secured to a pipe segment, in which the pipe fitting includes a grab ring having a grab notch and a fitting jacket to be conformally deformed around tubing of the pipe segment to facilitate securing the pipe fitting to the pipe segment. The system includes a swage machine, which includes a grab plate having a grab tab that matingly interlocks with the grab notch to facilitate securing the pipe fitting to the swage machine, a die plate including a die that opens away from the grab plate, and a swaging actuator secured to the die plate. The swage machine operates the swaging actuator to move the die plate over the fitting jacket in an outwardly axial direction away from the grab plate to facilitate conformally deforming the fitting jacket around the tubing of the pipe segment.

An end-form fitting includes a tube and an auxiliary component disposed around the tube. One of the tube and the auxiliary component is deformed to cause the auxiliary component to engage the tube in order to militate against relative movement between the tube and the auxiliary component. The auxiliary component includes an array of surface irregularities formed therein and configured to engage an outer circumferential surface of the tube to form a corrugated joint therebetween. The auxiliary component is formed to include a radially outwardly extending orientation structure for establishing a rotational orientation of the end-form fitting when being coupled to a complimentary end-form fitting.

A press device comprising a press ring for pressing together tubular workpieces in between, and at least a first and a second pivotable jaw is described. The first jaw comprises a first engagement section and the second jaw comprises a second engagement section. The press ring comprises a first and a second receiving section for receiving the first and the second engagement section of the press jaws, respectively. A first and a second surface of the first and the second receiving section, respectively, contact the first and the second engagement section, respectively. Each comprise a planar surface, and the first engagement section comprises a first contact surface and the second engagement section comprises a second contact surface. The first and the second contact surface oppose each other for applying a press force F. The first contact surface and the second contact surface each comprise at least one convex surface, such that a radius of curvature r of the first and the second contact surface is larger than half a width Wx, Wz, measured perpendicular to an axis of curvature, of the respective first and second contact surface.

An object grasping device includes: an upper frame having an inner peripheral surface shape corresponding to an outer peripheral surface of an upper portion of an object to surround the outer peripheral surface; a left lower frame having an inner peripheral surface shape corresponding to an outer peripheral surface of a left lower portion of the object to surround the outer peripheral surface of the left lower portion of the object; a right lower frame having an inner peripheral surface shape corresponding to an outer peripheral surface of a right lower portion of the object to surround the outer peripheral surface of the right lower portion of the object; left and right link members linking a left portion and a right portion of the upper frame and a middle portion of the left lower frame by hinges and a middle portion of the right lower frame by hinges, respectively.

Techniques for implementing and/or operating a system that includes a pipe fitting and a swage machine. The swage machine includes a grab plate having a grab tab that matingly interlocks with a grab notch on the pipe fitting to facilitate securing the swage machine to the pipe fitting and a die plate having a die seat that enables a set of die segments to be used to conformally deform the pipe fitting around the tubing of the pipe segment to be loaded in the swage machine. The die plate and the grab plate include a base plate section, a hinge plate secured to the base plate section via a hinge fastener such that the hinge plate directly abuts the base plate section, and a pivotable plate section secured to the hinge plate via a hinge fastener such that the hinge plate directly abuts the pivotable plate section.