A four-axis free pipe bending machine
A pipe bending machine, free technology, applied in the direction of forming tools, metal processing equipment, manufacturing tools, etc., can solve the problems of occupying space, not conducive to the forming of small bending radius pipe fittings, and achieve the effect of avoiding collisions
Active Publication Date: 2021-04-02
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology
These parts are concentrated in the bending part, taking up a lot of space, which is not conducive to the forming of small bending radius pipe fittings
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[0021] The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0022] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention.
[0023] refer to figure 1 , a four-axis free...
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The invention relates to a four-axis free pipe bending machine, and belongs to the field of metal pipe fitting shaping. The four-axis free pipe bending machine comprises a pipe feeding module, a clamptwisting module, an auxiliary guide module, a mold group, a mold control module, a bending direction control module and a rack. The pipe feeding module and the bending direction control module are linear sliding table modules with bottom surfaces fixed to the rack. The clamp twisting module is fixed to the sliding surface of the pipe feeding module and used for clamping one end of a pipe, and feeding and twisting of the pipe can be achieved. The auxiliary guide module is fixed to the rack and is located between the clamp twisting module and the mold group to ensure the feeding direction of the pipe. Because the mold group pipe bending radius is determined by the rotating angle of a movable mold around the center of sphere of a fixed mold, adjusting of the bending direction is facilitated.The mold control module drives the movable mold to move through a spline shaft and a spline cylinder, and the mold control module is hinged to the bending direction control module. The problem of concentrating in the bending mold position is effectively avoided, and the forming of a small-bending-radius pipe piece is further facilitated.
Description
technical field [0001] The invention belongs to the field of plastic processing of metal pipe fittings, in particular to a four-axis free pipe bending machine, which is used for free bending of pipe fittings in complex spaces. Background technique [0002] The free bending forming process of spatial pipe fittings can be used to realize the bending of complex pipe fittings (such as spiral pipes, spline pipes, etc.). Compared with the traditional CNC bending process, the free bending process can form more types of pipe fittings, more complex shapes, and lower cost. At present, Chinese patent CN106475445 provides a five-axis free bending forming machine; Chinese patent CN207127041U provides a three-dimensional free bending forming mechanism controlled by a polar coordinate system. These free-bend forming machines feature a feed mechanism that provides only feed thrust, not torsional motion. The mold motion control module mainly focuses on the bending part, and often needs to ...
Claims
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IPC IPC(8): B21D11/00B21D37/10
CPCB21D11/00B21D37/10
Inventor 吴建军张增坤梁波宋朝阳杨俊宙
Owner NORTHWESTERN POLYTECHNICAL UNIV