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Spline gear cold extrusion one-step molding device

A forming device and spline technology, applied in the direction of metal extrusion dies, etc., can solve the problems of inability to guarantee strength and precision, increase production costs, etc., and achieve the effect of improving production efficiency and product quality

Active Publication Date: 2013-08-07
无锡市神力齿轮冷挤有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This increases the production cost, and cannot guarantee its strength and precision

Method used

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  • Spline gear cold extrusion one-step molding device
  • Spline gear cold extrusion one-step molding device
  • Spline gear cold extrusion one-step molding device

Examples

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0013] As shown in the figure: the splined gear cold extrusion primary molding device includes an upper mold base 1 and a lower mold base 7, an upper mold base 3 is fixed on the lower surface of the upper mold base 1, and an upper mold base 3 is fixed on the lower surface of the upper mold base 3. The upper platen 9 is fixed, the punch holder 8 is arranged in the upper mold base 3, and the punch guide sleeve 10 is arranged in the punch holder 8; The lower mold base 6 is fixed on the upper surface of the lower mold base 6, and a pad 14 is provided on the lower mold base 6; a spline punch 11 is provided in the punch guide sleeve 10; a core plate is provided on the upper surface of the pad 14 13. A mold core 19 is provided in the mold core plate 13, a cover formwork 12 is provided on the upper surface of the mold core plate 13, a cover mold core 18 is provided in ...

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Abstract

The invention relates to a spline gear cold extrusion one-step molding device. An upper mould base is fixedly arranged on the lower surface of an upper mould frame, an upper pressure plate is fixedly arranged on the lower surface of the upper mould base, a convex mould fixing sleeve is arranged in the upper mould base, a convex mould guide sleeve is arranged in the convex mould fixing sleeve, an ejector rod is arranged on a lower mould frame, a lower mould base is fixedly arranged on the upper surface of the lower mould frame, a cushion block is arranged on the lower mould base, a spline convex mould is arranged in the convex mould guide sleeve, a mould core plate is arranged on the upper surface of the cushion block, a mould core is arranged in the mould core plate, a cover mould plate is arranged on the upper surface of the mould core plate, a cover mould core is arranged in the cover mould plate, and a lower pressure plate is sheathed on the cover mould plate and fixed on the lower mould base. After the spline gear cold extrusion one-step molding device is used, the two-step cold extrusion molding of a spline gear is changed into the one-step cold extrusion molding so as to greatly improve the production efficiency and the product quality.

Description

technical field [0001] The invention relates to a gear cold extrusion molding device, in particular to a spline gear cold extrusion primary molding device. Background technique [0002] The internal spline and external tooth profile of the original gear are processed in two steps. First, the external tooth profile is extruded, then drilled and fine-bored, and then the spline is drawn. Its disadvantages are: [0003] (1) The coaxiality cannot meet the requirements of the drawing; (2) The spline must be a through hole; (3) This not only changes the structure of the part, but also requires additional retaining rings and retaining springs during assembly. This has increased the production cost, and its strength and precision cannot be guaranteed. Contents of the invention [0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a spline gear cold extrusion primary forming device that can greatly improve production efficiency ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C23/02B21C25/02
Inventor 赵永敏
Owner 无锡市神力齿轮冷挤有限公司
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