Spinning process for manufacturing step type spinning belt wheels with different diameters and special tool thereof

A spinning process and step-type technology, which is applied in the field of step-type pulley spinning process and its special tooling, can solve the problems of non-concentric upper and lower cogs and unstable installation dimensions, so as to ensure product quality and solve the problem of different upper and lower cogs. heart problems, the effect of stable spinning production

Pending Publication Date: 2018-06-29
东风襄阳旋压技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a spinning process for manufacturing stepped spinning pulleys with different diameters, which solves the problem of non-concentricity of the upper and lower tooth grooves and unstable installation dimensions, and effectively guarantees product quality.

Method used

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  • Spinning process for manufacturing step type spinning belt wheels with different diameters and special tool thereof
  • Spinning process for manufacturing step type spinning belt wheels with different diameters and special tool thereof
  • Spinning process for manufacturing step type spinning belt wheels with different diameters and special tool thereof

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Embodiment Construction

[0033] Such as figure 1 As shown, the product is a spinning pulley with different upper and lower diameters. 1 is the first-stage single-groove folding pulley with a diameter of φ176mm, and 2 is the second-stage single-groove folding pulley with a diameter of φ230mm. The distance is 19.5mm.

[0034] Such as figure 2 As shown, the mandrel fixture 1 for spinning the tooth groove 1 is installed on the spinning equipment, and the mandrel fixture 1 includes an upper mandrel 5 , a lower mandrel 7 , and an ejector 6 . The preformed rotary wheel one 4 is contained on the first rotary wheel shaft; the final forming rotary wheel one is contained on the second rotary wheel shaft. The main shaft of the spinning equipment rotates, driving the mandrel fixture 1 and the first-level material of the product to be processed to rotate, and the vertical cylinder of the equipment drives the upper mandrel 15 to maintain the working speed and press down the first-level material of the product to ...

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Abstract

The invention discloses a spinning process for manufacturing step type spinning belt wheels with different diameters and a special tool thereof. The spinning process comprises twice spinning, and adopts two steps to mold by spinning. In primary spinning, the inner diameter of a second-grade large end surface is used for positioning on a mold; after molding by spinning, and when materials are totally filled in upper and lower core molds, the roundness of a first-grade tooth groove is guaranteed by the upper and lower core molds; then, a spun first tooth groove is used as reference; a center hole is formed in the bottom plane, so that the first-grade tooth groove is better in jumping relative to the reference hole; then, the center hole is used for positioning; a second-grade tooth groove isspun, and is better in jumping relative to the center hole; and the coaxiality of tooth grooves of upper and lower steps can be guaranteed. The spinning process has the following beneficial effects:the problems of staggered installation of upper and lower tooth grooves of the step type spinning belt wheels with different diameters and instable mounting size are solved; stable spinning productionis realized; the product quality is effectively guaranteed; and qualified step type plate spinning belt wheels with different diameters are provided.

Description

technical field [0001] The invention belongs to the technical field of step belt pulley processing with different diameters by spinning the inner plate of an automobile engine, and relates to a step belt pulley spinning process and a special tooling thereof. Background technique [0002] At present, in the pursuit of lightweight in automobiles, motors, and agricultural machinery, in order to achieve better energy saving and emission reduction purposes, more and more spinning pulleys are used, but most of them currently use a single set of pulleys, such as this multi-stage Composite pulleys are rare. If multiple sets of pulleys must be used, most pulleys are assembled into a whole by screws or welding. Compared with this combined structure of multiple pulleys, the multi-step stepped pulley is a whole and does not need to be connected into a whole by other means, so that the material consumption is less, the cost is low, the efficiency is high, and the performance is good. Ho...

Claims

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Application Information

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IPC IPC(8): B21D22/16B21D53/26
CPCB21D22/16B21D53/26Y02P70/62
Inventor 孙芽潘从勇张威刘惠
Owner 东风襄阳旋压技术有限公司
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