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公开(公告)号：EP0266491A1
公开(公告)日：1988-05-11
申请号：EP87110506.0
申请日：1987-07-20
IPC分类号： B21F35/00
摘要： A coil of taper wire for forming coil springs, formed by winding substantially in concentric loops a quench-hardened and tempered taper wire having a successive arrangement of taper wire segments each consisting of a thick section (4), two thin sections (5) and two taper sections (6) connecting the thin sections to the opposite ends of the thick section, respectively. The taper wire is subjected to a preforming action immediately before being wound in loops on a winding drum, to form plastic bends in the thick sections and plastic bends of a radius (R₂) of curvature greater than (R₁) that of the plastic bends in the thick sections so that the taper wire is wound substantially uniform, concentric circular loops on a winding drum. When the taper wire is unwound from the coil and is subjected to a straightening process of a fixed straightening arrangement of a series of straightener rollers before being coiled in taper wire coil springs on a coil spring forming mill, the thick sections undergo a straightening action greater than that acts on the thin sections, so that the taper wire unwound from the coil of taper wire is straightened in a substantially straight taper wire and thereby the taper wire is coiled in taper wire coil springs having correct size and uniform shape.
摘要翻译： 一种用于形成螺旋弹簧的线圈，其通过基本上缠绕在同心环中而形成淬火淬火和回火的锥形线，该锥形线具有连续布置的锥形线段，每个锥形线段由厚的部分（4），两个薄部分（5）和 两个锥形部分（6）分别将薄部分连接到厚部分的相对端。 在缠绕在卷筒上的环圈之前，锥形丝线经受预成型动作，以在厚的部分形成塑性弯曲部，并且弯曲半径（R2）大于（R1）的塑料弯曲部分在塑料弯曲部分 厚的部分使得锥形线在卷绕鼓上基本均匀地缠绕同心的圆形环。 当锥形线从线圈展开并且在卷绕在螺旋弹簧成形机的锥形线螺旋弹簧之前经受一系列矫直机辊的固定矫直装置的矫直过程时，厚部分会发生更大的矫直作用 使得从锥形线圈的线圈展开的锥形线在大致直的锥形线中被拉直，从而锥形线被卷绕成具有正确尺寸和均匀形状的锥形线圈弹簧。
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公开(公告)号：EP0259580A2
公开(公告)日：1988-03-16
申请号：EP87110502.9
申请日：1987-07-20
IPC分类号： B21C37/04
摘要： A taper rod producing process by which a taper rod having a profile very near to an aimed profile can be produced with high accuracy. According to the process, during working of a wire diameter gradually decreasing portion of a taper rod in which the diameter of a stock gradually decreases in a feeding direction of the stock, the drawing length of the stock from starting to ending of acceleration of variable speed feeding means is made greater than an aimed length of the wire diameter gradually decreasing portion, and during working of a wire diameter gradually increasing portion in which the diameter of the stock gradually increases, the drawing length of the stock from starting to ending of deceleration of the variable speed feeding means is made smaller than an aimed length of the wire diameter gradually increasing portion of the taper rod.
摘要翻译： 可以高精度地制造具有非常接近目标轮廓的轮廓的锥杆的锥杆制造方法。 根据该处理，在坯料直径逐渐减小的锥形杆的丝径逐渐减小部分的加工过程中，坯料的拉伸长度从变速加速度的开始到结束 进给装置大于线径逐渐减小部分的目标长度，并且在坯料直径逐渐增加的丝直径逐渐增加部分的加工期间，坯料的拉伸长度从开始到减速的结束 可变速进给装置比锥形杆的线径逐渐增大部分的目标长度小。
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公开(公告)号：EP0259580A3
公开(公告)日：1990-02-07
申请号：EP87110502.9
申请日：1987-07-20
IPC分类号： B21C37/04
摘要： A taper rod producing process by which a taper rod having a profile very near to an aimed profile can be produced with high accuracy. According to the process, during working of a wire diameter gradually decreasing portion of a taper rod in which the diameter of a stock gradually decreases in a feeding direction of the stock, the drawing length of the stock from starting to ending of acceleration of variable speed feeding means is made greater than an aimed length of the wire diameter gradually decreasing portion, and during working of a wire diameter gradually increasing portion in which the diameter of the stock gradually increases, the drawing length of the stock from starting to ending of deceleration of the variable speed feeding means is made smaller than an aimed length of the wire diameter gradually increasing portion of the taper rod.
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