Abstract: Provided is a bending device that includes a processing part having two protruding parts that protrude from an end surface of a pillar part and that bend a wire, a rotary part that supports the processing parts and rotates about an axis intersecting the length direction of the pillar part, an accommodating part that is cylindrical and accommodates the rotary part at an end part of the accommodating part so as to be rotatable, and a mechanism that rotates the accommodating part about an axis of the accommodating part.

Abstract: A quill supporting member supporting a quill may include a movable body, e.g. Z-axis movable body that moves in a Z-axis direction of an XYZ orthogonal coordinate system representing a shaft core of the quill as an Z-axis. A tool holder supporting member supporting a tool holder for holding a tool may include the other movable bodies, e.g. an X-axis movable body that moves in an X-axis direction and a Y-axis movable body that moves in a Y-axis direction. Therefore, the quill is shortened in the Z-axis direction, and a contact area is reduced between a guide path of the quill and a wire rod.

Abstract: Providing a coil spring manufacturing machine capable of adjusting the shape of a manufactured spring with fixing a wire feeding unit, followed by moving a shaping tool mounting member, attached to one or a plurality of movable members, in the front-rear, left-right, and/or up-down direction of the wire feeding direction. The shaping tool mounting member may be moved in all the three directions. Each movable member is provided with a drive source for driving the movable member.

Abstract: A spring manufacturing apparatus includes a supporting body which moves in X, Y, and Z-axes directions of a XYZ orthogonal coordinate system representing a moving direction of a wire rod fed from a wire rod feeding unit as a Z-axis. The supporting body is formed with an opening in which the quill is arranged. The supporting body further includes a tool holder for holding a processing tool for processing the wire rod to a spring. The supporting body arranged at the vicinity of the quill is moved to accurately adjust the relative position of the quill and the processing tool, thereby manufacturing a desired spring.

Abstract: A swing bar is connected to a slide by attaching a first pivot to one end of the swing bar, and a bending die is mounted to the other end. A connecting piece is provided on the upper surface of the swing bar, and a second pivot capable of freely turning is inserted into a through-hole formed in the connecting piece, and then fitted into a guide groove formed parallel to the wire feeding direction in a guide member mounted to a second bending unit. Motors are connected to the slide and the second bending unit, respectively.

Abstract: To easily adjust and change a locus of a leading end (an endless locus) of a cutter, a wire rod cutting apparatus of spring manufacturing machine has structure so that a slide may vertically slide via a connection rod by rotating a rotation shaft, and a cutter mounting oscillating arm can oscillate laterally via a sliding element by oscillating the connection rod, so that the locus thereof in the oscillating arm can be set to a predetermined shape which is endless in a front view and different between an outward and a homeward routes, by sliding the slide and oscillating the oscillating arm by actuation of the actuating apparatus and that a lateral oscillating amount of the oscillating arm can be changed by changing the position of the sliding element, to change the locus of the cutter leading end.

Abstract: A spring manufacturing apparatus with a reduced number of driving sources, yet capable of adjusting the relative positions among the bending dices with higher precision when manufacturing a spring is to be provided. A second bending dice mounting slider and a third bending dice mounting slider are symmetrically located about a center line extended from a moving direction of a first bending dice mounting slider. An arm mechanically connects the first bending dice mounting slider and the second bending dice mounting slider, or the first bending dice mounting slider and the third bending dice mounting slider, so that either of a driving source that drives the second bending dice mounting slider or a driving source that drives the third-bending dice mounting slider moves the first bending dice mounting slider, thus to determine a winding direction of a wire for manufacturing a spring.

Abstract: To improve a spring processing performance, a spring manufacturing machine is structured such that a rotating casing (26) is rotated around a common center line (C1), a final wire rod guide (17) is rotated around the common center line (C1), a wire rod feeding unit (12) is moved forward and backward by an actuating apparatus (53), and the actuating apparatus (53) is constituted by a motor (55) which has a reversible rotation shaft (56) with an axis directed to the lateral direction, an oscillating arm (57) which is oscillated forward and backward by the motor (55), a projection (58) which is provided in a free end of the oscillating arm (57) and opposes to the center line (C1) of a wire rod passage of a final wire rod guide (17), and an annular body (60) which has an annular groove (59) fitted to the projection (58) and is fitted to a hollow shaft (48).

Abstract: In order that a moving locus of a leading end of a tool 55 provided to a tool mounting device 54 is aligned with a direction orthogonal to a center line W of a wire rod passage (not shown) of a final wire rod guide 13, a tool operating apparatus 22 has a position adjusting table 23 movable forward and backward and movable to optional positions within a virtual vertical plane parallel to a front wall 5 of an upper portion 2B of a fixed machine casing 2, a rotating body 46 provided to the position adjusting table 23 rotatably around a rotation center line C parallel to the center line W of the wire rod passage of the final wire rod guide 13, and a tool mounting device 54 provided in the rotating body 46 movably in parallel in a direction orthogonal to the rotation center line C.

Abstract: To efficiently manufacture springs having various kinds of shapes, a spring manufacturing machine is structured such as to bend a wire by two inner engagement projections (47) by adjusting a position of a position adjusting table (34), fitting a gap (46) to the wire fed out from a final wire guide (13) and temporarily stopping, and thereafter rotating a rotation spindle (48), and also to bend a wire on the basis of a cooperation of an outer engagement projection (44) and the inner engagement projection (47) by adjusting the position of the position adjusting table (34), fitting the gap (46) to the wire fed out from the final wire guide (13) and temporarily stopping, and thereafter rotating a rotation sleeve (45).

Abstract: To easily adjust and change a locus of a leading end (an endless locus) of a cutter, a wire rod cutting apparatus of spring manufacturing machine has structure so that a slide may vertically slide via a connection rod by rotating a rotation shaft, and a cutter mounting oscillating arm can oscillate laterally via a sliding element by oscillating the connection rod, so that the locus thereof in the oscillating arm can be set to a predetermined shape (refer to a two-dot chain line in FIG. 1) which is endless in a front view and different between an outward and a homeward routes, by sliding the slide and oscillating the oscillating arm by actuation of the actuating apparatus and that a lateral oscillating amount of the oscillating arm can be changed by changing the position of the sliding element, to change the locus of the cutter leading end.

Abstract: A spring manufacturing machine enhances an efficiency of operation. A desired one of wire passages in wire feeding rollers is aligned with a wire passage in an auxiliary wire guide and a wire passage in a final wire guide by adjusting a position of a forward and rearward movable table with respect to a front wall of a machine frame.

Abstract: The present invention relates to an apparatus for raising hooks of semi-finished springs, which includes a rocking arm arranged to be pivotally movable between an upper and a lower positions and having a pair of lateral semi-finished spring holding pieces at its forward end portion for transferring the semi-finished springs manufactured by a spring manufacturing machine towards a hook raising section provided above a spring discharge opening formed in a table of the apparatus, a clamping unit for fixedly clamping the semi-finished spring holding pieces which have been transferred to the hook raising section, a rotational position control member which rotates the semi-finished spring held between the semi-finished spring holding pieces for its positional control, and a pair of slide members on which hook raising tools are mounted and which are adapted to freely advance towards or retracted from the hook raising section.