Manufacturing method of small-diameter two-sided dual-groove belt wheel by folding and spinning
A manufacturing method and pulley technology, applied in metal processing equipment and other directions, can solve the problems of increased material consumption and low structural strength, and achieve the effects of reducing material consumption, good integrity and increasing friction.
Inactive Publication Date: 2011-09-28
锦州华一汽车部件有限公司
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Problems solved by technology
The double-groove folding pulley produced by the spinning process above, because the pulley and the support plate are essentially two bodies, so the structural strength is low, and there is a potential hidden danger of relative rotation during the operation of the pulley; The excess material itself is not needed, so it also increases the material consumption
Method used
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Embodiment Construction
[0049] Provide the specific embodiment of the utility model below in conjunction with accompanying drawing.
[0050] The specific steps are:
[0051] The first step, blanking: put the sheet into the upper die 1 and the lower die 3, and punch out such as figure 1 The shown cross-section is a rectangular circular planar blank 2;
[0052] The second step, punching: put such as figure 1 The shown circular planar blank 2 with a rectangular cross section is put into the secondary stamping upper die 5 and the secondary stamping lower die 7; figure 2 The section shown is a rectangular circular planar blank 6 with a central hole;
[0053] The third step, a spinning: put such as figure 2 The cross-section shown is a circular planar blank 6 with a rectangular center hole, which is put into the primary spinning upper die 10 and the primary spinning lower die 12 for compaction, and is positioned by the positioning rod 13 on the spinning machine. Both the spinning upper die 10 and th...
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Abstract
The invention discloses a manufacturing method of a small-diameter two-sided dual-groove belt wheel by folding and spinning, which solves the problems that a supporting plate is needed to be arranged between dual grooves of a dual-groove folding belt wheel, the structural strength is lower and the material consumption is large for the small-diameter two-sided dual-groove folding and spinning beltwheel in the prior art. The technical scheme comprises the following steps: symmetrically splitting round plane blank materials along two sides of a horizontal center line by primary spinning, simultaneously enabling the round plane blank materials to form an up-down protruded rough surface and forming a drum-shaped flange blank; enabling the drum-shaped flange blank to form blanks with uniform thickness and I-shaped section by secondary spinning; folding and spinning the I-shaped blanks to form performing blanks by third-time spinning; and folding and spinning the performing blanks to form asmall-diameter two-sided dual-groove folding and spinning belt wheel finished product meeting the requirements by fourth-time spinning. The invention has the advantages that the small-diameter two-sided dual-groove folding and spinning belt wheel can be produced by using a steel plate through spinning at small diameter, the belt wheel has good integrity, the structural strength is high and the size precision of the belt wheel can be improved.
Description
technical field [0001] The invention belongs to a manufacturing method of a spinning belt pulley, in particular to a manufacturing method of a small-diameter bilateral double-groove folded spinning belt pulley. Background technique [0002] The pulley is an important mechanical transmission component. In the prior art, the traditional pulley manufacturing method is to use a casting process to manufacture the pulley blank, and then form the pulley through surface cutting. The disadvantages are waste of materials, low machining accuracy, and low surface strength of the pulley. In recent years, the spinning technology of pulleys has been widely developed. The pulleys made of spinning technology have light structure, low material consumption, high surface mechanical strength and high dimensional accuracy. [0003] The application date is May 15, 1985, and the patent application number 85103420 discloses a precision machining method for manufacturing multi-V-groove pulleys from ...
Claims
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IPC IPC(8): B21D53/26B21D22/16
Inventor 沈守华井振刚杜荣玖
Owner 锦州华一汽车部件有限公司