Machining technology for inner race housing die abnormal-shaped punch

A processing technology, star sleeve technology, applied in the field of processing technology of special-shaped punches of star sleeve molds, can solve problems such as low product quality, waste of mold materials, and reduced service life of punches, so as to reduce process procedures and save Mold material, effect of improving punch life

Active Publication Date: 2012-02-01
JIANGSU SUNWAY PRECISION FORGING
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AI Technical Summary

Problems solved by technology

The disadvantages of this process are: the mold material is wasted due to the process of building at both ends; the parallelism between the upper plane and the bottom plane of the punch cannot be guaranteed in the whole process, and the force of the special-shaped punch is relatively large during the star-shaped

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  • Machining technology for inner race housing die abnormal-shaped punch
  • Machining technology for inner race housing die abnormal-shaped punch

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Embodiment Construction

[0011] The following is a further detailed description of the processing technology of the special-shaped punch of the star sleeve mold.

[0012] As shown in the figure, among them: 1. Press ring; 2. Handle; 3. Press plate; 4. Punch; 5. Base; 6. Bolt; 7. Bottom plate.

[0013] In the embodiment of the present invention, the specific processing technology is as follows: sawing material, rough turning, machining center milling special shape, heat treatment, finishing turning, numerical control finishing turning, flat grinding, electric spark, grinding.

[0014] One. Saw material, punch material adopts common mold material among the present invention.

[0015] 2. Rough turning, in the rough turning process, only the head end of the punch is left for rough turning, which can save mold materials.

[0016] 3. Machining center milling irregular shape, conventional milling irregular shape, machining center milling irregular shape optimizes the processing technology.

[0017] 4. Heat...

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Abstract

The invention provides a machining technology for an inner race housing die abnormal-shaped punch, which comprises the following specific steps of: sawing materials, roughly turning, milling into an abnormal shape by a machining center, carrying out heat treatment, finely turning, finely turning in a numerical-control mode, carrying out plane abrasion and electric spark, and grinding. The purposes of saving die materials and improving the die service life and the product quality are realized. In the plane abrasion technology, a plane abrasion fixture is designed to take the head plane of the punch which is finely turned in a numerical-control mode as a reference plane abrasion punch bottom so as to ensure that the depth of parallelism between the upper plane and the bottom plane of the punch is within 0.02mm. The plane abrasion working procedure guarantees the depth of parallelism between the upper plane and the bottom plane of the punch, so that the punch is evenly stressed and has small possibility of breaking, the punch service life is prolonged, and the product quality is improved.

Description

technical field [0001] The invention relates to the field of die processing, in particular to the processing technology of the special-shaped punch of the star sleeve die. Background technique [0002] At present, the common processing technology of star-shaped sleeve special-shaped punches is: sawing → rough turning (both ends are reserved for the process) → horizontal milling of special shapes → heat treatment → grinding the outer circle → fine turning (removing the bottom surface process, turning taper) → EDM →CNC finishing turning (head)→Grinding. The disadvantages of this process are: the mold material is wasted due to the process of building at both ends; the parallelism between the upper plane and the bottom plane of the punch cannot be guaranteed in the whole process, and the force of the special-shaped punch is relatively large during the star-shaped sleeve closed cold forging forming process. If the parallelism cannot be guaranteed, the partial load of the punch w...

Claims

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Application Information

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IPC IPC(8): B21J13/02
Inventor 张骏卢刚丁亮
Owner JIANGSU SUNWAY PRECISION FORGING
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