233 results about "Rivet gun" patented technology

A rivet gun includes a pneumatic motor (4), that drives a segment stem 7. A pneumatic cylinder (21) actuates a hydraulic cylinder (22) which sends oil under pressure to an expansion chamber (10) provided for moving back the segment stem (7) and buckling the rivet (2) fixing it to a laminate structure (100). The rivet gun also includes a change-over switching device (30) linked to controls (50,60) for reversing rotation of the motor (4). The controls (60) include an inlet valve (61) operated by a trigger (64) for connecting a compressed air infeed duct 14 with a feed-discharge duct (23) leading to the pneumatic cylinder (21). A discharge valve (63) is disposed in series with the inlet valve (61) and has an adjustment ring (176) for adjusting of the maximum traction force. Another discharge valve (90) is disposed in series with the discharge valve (63) previously mentioned and is provided for adjustment of the stroke of the segment stem (7).

A structure of rivet nut gun having a body, a handle and a pressure cylinder. The top of the handle is furnished with a mounting base having a through cylindrical hole. The lower end of the handle is furnished with a base surface for mounting the fastening disk. The body has a connector mounted with a connecting rod to penetrate through the cylindrical hole of the handle. The fastening disk is fastened to one end of the connecting rod by a nut. The fastening disk is connected with two symmetrical screw rods, which penetrate through the piston and the pressure cylinder, and are fastened to the bottom of the pressure cylinder by two nuts respectively so as to have the piston cylinder fastened in place and to prevent the pressure cylinder from deformation during the rivet nut gun operating.

An automatic suction and repelling device for rivet gun, which comprises a body and a handle, and the intake passages thereof are in communication each other; the rear center of the body is furnished with a regulation ring and a used-nail cylinder; the regulation ring can be adjusted to move by means of screwing so as to adjust the volume of pressure air to enter the body, and to adjust the vacuum suction force in the used-nail pipe; during rivet-pulling work, the rivet gun can automatically suck in, and can suck a used nail into the used-nail cylinder upon the rivet-pulling work done.

A blind rivet design has an exposed mandrel portion modified from the conventional and standardized mandrel to reduce amount and cost of materials required to produce the mandrel, while also minimizing costs related to production, use, and spent mandrel disposal, all while still making use of conventional riveting tools for rivet setting and maintaining rivet performance. To work with the inventive blind rivet design, a conventional riveting tool, i.e., a rivet gun with a replaceable nosepiece, may be utilized, with a modified nose housing attached. The replaceable nosepiece and modified nose housing on the conventional rivet setting tool enables use of a mandrel having a reduced exposed mandrel portion relative to conventional and standardized mandrels. In addition, a modified stepped approach to setting the rivet may also be utilized in conjunction with the inventive rivet design to enable use of an even further reduced exposed mandrel portion.

A system and method for self-piercing riveting including an alignment mechanism comprising laser diodes and sensors for facilitating alignment of a rivet gun and a back-up located on opposite sides of sheet metal parts to be joined, and an oscillation piercing technique for reducing force loads on structures, particularly robotic structures, carrying the rivet gun and the back-up.

The invention provides an automatic nut riveting device and an automobile luggage carrier workpiece tube wall round hole nut riveting method. The device comprises a pneumatic nut riveting gun (20), a two-dimensional moving device, a rotating device and a second cylinder (21), the pneumatic nut riveting gun vertically and bilaterally moves by the aid of the two-dimensional moving device and rotates by the aid of the rotating device, the second cylinder (21) pushes a switch piece (20A) of the pneumatic nut riveting gun, a vibrating disk device capable of automatically supplying riveting nuts (24) is arranged beside the second cylinder, a first workpiece shelf (32) for placing a single automobile luggage carrier workpiece (31) is arranged in front of the second cylinder and can bilaterally move, the pneumatic nut riveting gun (20) sucking the riveting nuts (24) rotates along with a rotating plate (11) before the riveting nuts (24) are pulled, and the axis of an opening of the pneumatic nut riveting gun is consistent with that of a round hole (31B). The device is high in automation degree and nut riveting operation efficiency, fine in product consistency and particularly suitable for automatic nut riveting operation of the automobile luggage carrier workpiece with a bending radian.

The invention discloses a rivet joint, an auxiliary rivet joint and a method for stress wave mounting of an interference fit fastener, which are used for solving the technical problem that the structure of a riveted piece is prone to deformation when an existing stress wave mounting device is used for stress wave mounting of the interference fit fastener. The technical scheme is as follows: the rivet joint and the auxiliary rivet joint are respectively mounted on two electromagnetic riveting guns through connectors 13, and position-limiting and guide structures are respectively arranged on the rivet joint and the auxiliary rivet joint, thereby ensuring the alignment between the electromagnetic rivet guns and the fastener. The rivet joint and the auxiliary rivet joint can apply force on the two surfaces of the riveted piece, thereby avoiding the deformation of the riveted piece when the single electromagnetic rivet gun is used for applying the force on the single surface of the riveted piece.

A rivet gun for setting a self-tapping rivet in one or more work pieces has a tool body having a handle for gripping, a rotation assembly having a motor attached to an axially adjustable shaft and a chuck to thereby impart rotation to the chuck adapted to grip and rotate the shank of the self-tapping rivet. A hydraulic assembly having a pull bushing is connected to a piston rod attached to a piston and a retraction assembly having a mandrel clamp and a mandrel clamp ring is connected to a spring guide biased toward the mandrel clamp by a spring to thereby compress the mandrel clamp to grip and retract the shank, set the self-tapping rivet in the work pieces and detach the shank from the self-tapping rivet.

The invention discloses an automatic riveting machine for wine box package. The automatic riveting machine comprises a working table, an automatic riveting device and a wine box conveying, positioning and clamping mechanism, wherein the wine box conveying, positioning and clamping mechanism is arranged on the working table; the automatic riveting device is symmetrically and fixedly arranged on the working table on the two sides of the wine box conveying, positioning and clamping mechanism; the automatic riveting device comprises a rivet sorting mechanism, a rivet conveying mechanism, a petal sorting mechanism, a petal conveying mechanism and a rivet gun; the rivet conveying mechanism is positioned at a central position of the working table; the upper side of the rivet conveying mechanism is connected with the rivet sorting mechanism through a rivet flow passage; the rivet gun is arranged below the rivet conveying mechanism; the petal sorting mechanism is connected with the petal conveying mechanism through a petal flow passage; the petal conveying mechanism is positioned on one side of the rivet conveying mechanism and pushes a petal receiving seat to be connected with the rivet conveying mechanism through a rodless cylinder. The automatic riveting machine has the advantages of high degree of automation, stable work, high reliability and capabilities of reducing the labor cost and improving the economic benefit of enterprises.

The invention provides an automatic loading and and setting blind rivet mechanism, comprising one machine base provided with a working area, a rivet-supplying device disposed on the top surface of the machine base, a rivet-setting plate provided with a plurality of rivet-setting devices, a rivet gun fixing member and a lifting device. The rivet-supplying device comprises a shock device, a rivet-distributing device abutting against the shock device and a plurality of rivet-guiding pipes connected with the rivet-distributing device. The rivet-setting plate is disposed in a working area and provided with the plurality of rivet-setting devices; bottom outlets of the rivet-guiding pipes correspond to the plurality of rivet-setting devices to guide the blind rivets into the plurality of rivet-setting devices; the rivet gun fixing member is disposed below the rivet-setting plate and fixedly provided with a plurality of rivet guns thereblow, each rivet gun being provided with a gun tips; the lifting device moves the rivet-setting plate to be close or far from the rivet gun fixing member, so that a plurality of rivet guns enter the rivet-setting devices of the rivet-setting plate to insert the blind rivets on a plurality of gun tips. The automatic loading and setting blind rivet mechanism can automatically filling the blind rivet, so as to save manpower for filling the blind rivet.

The invention relates to a low-voltage electromagnet riveting method of a metal-composite material combined structure, belonging to the manufacture filed of aviation and space engineering and solving the problems that the traditional riveting technology is difficult to realize the riveting of rivets with high strength, large diameter and large length on the metal-composite material, the metal-composite material combined structure has unstable riveting quality, the riveted structure has short life and the uniform interference riveting forming of rivets with large length cannot be ensured. The low-voltage electromagnet riveting method of the metal-composite material combined structure comprises the following steps: firstly, fixing metals and composite materials on which through holes are drilled; secondly, leading the rivets to pass through the through holes of the metals and the composite materials; thirdly, contacting a rivet head of a rivet gun with one side of a rivet tail and contacting one side of the rivet tail with top iron; and fourthly, giving out a processing signal to the rivet gun by a low-voltage electromagnetic riveting system and finishing the riveting. The invention is applied in the riveting process of the metal-composite material combined structures of large-sized cylinders of large-sized planes and rocket projectile bodies.

The invention provides an automatic rivet supplying and automatic rivet pulling device for an intelligent high-speed riveting gun. The automatic rivet supplying and automatic rivet pulling device comprises a base, a riveting mechanism, a material supplying mechanism and a feeding mechanism. The riveting mechanism comprises a riveting cylinder, a riveting gun body and a switch cylinder. The material supplying mechanism comprises a material supplying tube which is vertically fixed on a mounting support plate, and a rivet receiving tube is arranged at the lower end of the material supplying tube. The feeding mechanism comprises a horizontal cylinder, a vertical cylinder and a rivet head, wherein the horizontal cylinder is horizontally fixed on the side wall of a mounting base, the vertical cylinder is vertically fixed at the output end of the horizontal cylinder, and the rivet head is fixed at the end of an output shaft of the vertical cylinder through a connecting plate. A gun nozzle of the riveting gun body and the rivet receiving tube are placed on the movement path of the rivet head. The automatic rivet supplying and automatic rivet pulling device for the intelligent high-speed riveting gun is simple in structure, convenient to operate, high in working efficiency and good in stability, greatly lowers the labor intensity of workers and improves the production efficiency.

A barrel assembly for a rivet gun has a tube body, a vising piston and a rear valve. The tube body has an assembling hole and a bypass hole. The vising piston is mounted slidably in the assembling hole of the tube body and has a piston head mounted slidably in the assembling hole of the tube body and having two O-rings mounted around the piston head at an interval, and a shaft formed on the piston head. The rear valve mounted on the rear opening of the assembling hole of the tube body. When the vi sing piston moves backward adjacent to the rear opening of the assembling hole of the tube body, the bypass hole of the tube body is located at the interval between the O-rings and is sealed by the 0-rings without consuming high pressure air from a pneumatic cylinder.

A mandrel-pulling distance sensing assembly of an electric rivet gun is mounted in a barrel of a housing and has a stationary seat, a moving seat, two magnetic elements separately fixed on the stationary seat, and a Hall effect sensor fixed on the moving seat. The moving seat is driven by a driving assembly of the electric rivet gun and is movable relative to the stationary seat. While the Hall effect sensor moves along with the moving seat between the two magnetic elements, the Hall effect sensor detects a changing magnetic field and produces and outputs a changing voltages to a control unit to allow the control unit to operate the driving assembly according to the changing voltages. Thus, the moving seat can be accurately positioned and moving ranges of a snapping device that is driven by the driving assembly can be accurately controlled.

Method and apparatus of back riveting construction for sections of aircraft structure utilizing the flush riveting wherein the back bar tooling for all the rivets in the entire section is a single piece of stationary tooling which conforms to the exterior shape of the aircraft section. The rivet gun is a single impact pneumatic gun with a rivet driving hammer which is offset from the axis of the gun's piston and impact pin to upset rivet under C-channel flanges.

The invention discloses an actuator assembly line and an assembly method. The actuator assembly line mainly comprises a spin-riveting device, a hemming device, a detecting device and a tightening device which are arranged in sequence, wherein the spin-riveting device comprises a first machine frame, a spin-riveting gun is arranged in the first machine frame, a product turnplate and a turnplate driving mechanism driving the product turnplate to rotate are arranged below the spin-riveting gun, multiple first product accommodating tools are arranged in the peripheral direction of the product turnplate, and a clamping device is arranged below the spin-riveting gun. According to the assembly line, an actuator is assembled through combination of mechanical structures, actuator assembly efficiency is improved, and physical strength of workers is saved; a spring in the actuator is subjected to elasticity testing in advance, so that the quality of the spring is guaranteed; furthermore, hemming is also conducted during elasticity testing, operation is convenient and quick, and energy consumption is reduced.