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Process for machining necked large-aperture slewing rings

A processing technology and large-aperture technology, applied in metal processing equipment, forming tools, manufacturing tools, etc., can solve the problems of high processing cost and low material utilization rate, reduce scrap rate, improve thinning at rounded corners, and improve the effect of strength

Inactive Publication Date: 2014-07-02
SHIJIAZHUANG ZHONGXING MACHINERY MFG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the processing technology of the above two types of parts is as follows: lower material - punching process hole - cutting circle - stretching forming - punching center hole, which mainly adopts stretching forming process, the material utilization rate is low, and the processing cost is high

Method used

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  • Process for machining necked large-aperture slewing rings
  • Process for machining necked large-aperture slewing rings
  • Process for machining necked large-aperture slewing rings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1 a kind of attached figure 2 The process and mold of the large-bore slewing ring with shrinkage shown

[0032] First, the strip material is laid down, rolled into a ring-shaped ring material, and then welded and cleaned to form a ring blank. image 3 The shrinking mold shown is used for shrinking, and then the attached Figure 4 The forming die shown is used for forming.

[0033] The necking mold in this embodiment includes a necking upper mold assembly and a necking lower mold assembly, and the necking upper mold assembly includes a necking upper mold plate 1, a necking upper mold 2, an inclined push block 3, and an upper stripping rubber 4. The upper cone 5 and the adjustment pad 6, the necking upper mold 1 is fixedly connected with the necking upper mold 2 through bolts, and the inclined push block 3 is fixed on the inclined push block 3 with an upper return material The bolts of the rubber 4 are movably connected with the necking upper template 1, an...

Embodiment 2

[0038] Example 2 a kind of attached Figure 5 The process and mold of the large-bore slewing ring with shrinkage shown

[0039] First, the strip material is rolled into a ring-shaped ring material, and then it is welded and cleaned to form a ring blank, which is shrinked by a shrinking die, and then formed by a forming die.

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Abstract

The invention relates to a process for machining necked large-aperture slewing rings. The process includes the steps of blanking, circle curling, welding cleaning, heating, necking and forming. By means of the process, an original process for machining necked large-aperture slewing rings is changed, cost is reduced, the rejection rate is also greatly reduced, the material selection range is wider, rounded corners are thinned and improved, and strength is improved.

Description

technical field [0001] The invention relates to a processing technology for a workpiece, in particular to a processing technology for a slewing ring with a shrinking neck and a large aperture. Background technique [0002] Two types of rotary parts are usually used in the machinery manufacturing industry. One type of parts is widely used in domestic and foreign high-horsepower tractors. The center hole is large. The other type of parts is mostly used for harvesting machine split wheel rims, which are characterized by large outer diameter, high depth, thin material and large center hole. At present, the processing technology of the above two types of parts is as follows: lower material - punching process hole - cutting circle - stretching forming - punching center hole, which mainly adopts stretching forming process, the material utilization rate is low, and the processing cost is high. Contents of the invention [0003] The object of the present invention is to provide a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB21D53/16B21D37/10B21D41/04
Inventor 杨铭杰刘永伟耿高峰张建悦
Owner SHIJIAZHUANG ZHONGXING MACHINERY MFG LTD