A bolt setting method and device for a nail-shaped bolt with a head and a shaft, ending in a tapered manner. The bolt setting method includes: joining the bolt into a component with a deforming stroke during which the bolt reaches a first joining speed of ?4 m/s and the shaft completely penetrates the components with a portion of a maximum diameter with respect to a shaft length, without a bottom side of the head abutting the at least one component, and after the deforming stroke, driving the bolt into the at least one component until a head abutment of the bottom side of the head on the at least one component by at least one friction stroke with which a frictional connection between the shaft and the components is overcome and with which the bolt reaches a second joining speed that is smaller than the first joining speed.

A double-cam fastener driving machine, including an energy storage unit; an impact unit for actuating the energy storage unit to store energy which can bear the energy released from the energy storage unit to drive the fastener into the workpiece; a rotating actuating unit; a pushing mechanism; a double-cam mechanism, comprising a first cam and a second cam which can be optionally engaged and disengaged, the first cam is connected to the rotating actuating unit and driven by the rotating actuating unit to rotate, the second cam is connected and linked with the pushing mechanism. The double-cam mechanism to implement engagement and disengagement of rotating actuating unit and pushing mechanism, and the impact unit is not disengaged from the pushing mechanism, so that the double-cam mechanism can be engaged correctly during quick release, normal nailing or nail jamming of impact unit.

A double-cam fastener driving machine, including an energy storage unit; an impact unit for actuating the energy storage unit to store energy which can bear the energy released from the energy storage unit to drive the fastener into the workpiece; a rotating actuating unit; a pushing mechanism; a double-cam mechanism, comprising a first cam and a second cam which can be optionally engaged and disengaged, the first cam is connected to the rotating actuating unit and driven by the rotating actuating unit to rotate, the second cam is connected and linked with the pushing mechanism. The double-cam mechanism to implement engagement and disengagement of rotating actuating unit and pushing mechanism, and the impact unit is not disengaged from the pushing mechanism, so that the double-cam mechanism can be engaged correctly during quick release, normal nailing or nail jamming of impact unit.

The present invention discloses an automatic assembly line for mattress spring, comprising a mattress spring conveying mechanism for conveying mattress springs; It also comprises a mattress spring frame assembly mechanism for installing frames on the mattress spring; It also comprises a mattress spring butterfly spring nailing mechanism for installing butterfly springs on the side of the mattress spring; This proposal designs an automatic assembly line for mattress spring, wherein the mattress spring frame assembly mechanism can automatically complete the loading of the frame, the transportation of the mattress spring frame assembly mechanism, the installation between the mattress spring and the frame, and the folding of non-woven fabric after the installation of the mattress spring frame; The entire automatic assembly line for mattress spring presents a high degree of automation without manual operation, which features high assembly efficiency and high assembly accuracy, thereby effectively improving the production process of products.

The present invention discloses an automatic assembly line for mattress spring, comprising a mattress spring conveying mechanism for conveying mattress springs; It also comprises a mattress spring frame assembly mechanism for installing frames on the mattress spring; It also comprises a mattress spring butterfly spring nailing mechanism for installing butterfly springs on the side of the mattress spring; This proposal designs an automatic assembly line for mattress spring, wherein the mattress spring frame assembly mechanism can automatically complete the loading of the frame, the transportation of the mattress spring frame assembly mechanism, the installation between the mattress spring and the frame, and the folding of non-woven fabric after the installation of the mattress spring frame; The entire automatic assembly line for mattress spring presents a high degree of automation without manual operation, which features high assembly efficiency and high assembly accuracy, thereby effectively improving the production process of products.

An automatic assembly line for mattress spring, includes a mattress spring conveying mechanism for conveying mattress springs; It also comprises a mattress spring frame assembly mechanism for installing frames on the mattress spring; It also comprises a mattress spring butterfly spring nailing mechanism for installing butterfly springs on the side of the mattress spring; This proposal designs an automatic assembly line for mattress spring, wherein the mattress spring frame assembly mechanism can automatically complete the loading of the frame, the transportation of the mattress spring frame assembly mechanism, the installation between the mattress spring and the frame, and the folding of non-woven fabric after the installation of the mattress spring frame.

An automatic assembly line for mattress spring, includes a mattress spring conveying mechanism for conveying mattress springs; It also comprises a mattress spring frame assembly mechanism for installing frames on the mattress spring; It also comprises a mattress spring butterfly spring nailing mechanism for installing butterfly springs on the side of the mattress spring; This proposal designs an automatic assembly line for mattress spring, wherein the mattress spring frame assembly mechanism can automatically complete the loading of the frame, the transportation of the mattress spring frame assembly mechanism, the installation between the mattress spring and the frame, and the folding of non-woven fabric after the installation of the mattress spring frame.