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Method for the production of a workpiece and grinding machine

A workpiece and grinding machine technology, applied in the field of grinding machines, can solve problems such as high manufacturing costs, and achieve the effects of reducing manufacturing costs and shortening processing time

Active Publication Date: 2010-02-03
KAPP GMBH & CO KG WERKZ MASCHFAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Disadvantageously, the manufacture of workpieces such as the screw compressor rotors in question always still entails high manufacturing costs, since a corresponding amount of time is required to achieve the high precision

Method used

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  • Method for the production of a workpiece and grinding machine

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Embodiment Construction

[0032] It can be seen that a workpiece 1 in the form of a screw compressor rotor has been pre-machined before entering the grinding machine. The rotor 1 thus already has a helical profile 2 on the circumference of its cylindrical shape. In the grinding machine shown, complete final machining of the rotor 1 takes place, including a rough-grinding and a fine-grinding process as well as a deburring process.

[0033] The tool spindle 5 shown in the figure is provided with two grinding tools 3 and 4 .

[0034] For this purpose, the roughing tool involves grinding the worm 3 , whose profile is designed such that when the helical profile is hobbed continuously in the profile 2 to be machined, a large amount of the existing machining allowance is removed by grinding. part.

[0035] The finishing tool is a profile grinding wheel 4 , which has a profile in a known manner in order to be able to precisely finish the helical helix of the profile 2 . Grinding worm 3 and profile grinding ...

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Abstract

The invention relates to a method for the production of a rotor of a rotary screw compressor (1) with a cylindrical basic shape, which has a helical profile (2) at its outer circumference, wherein the method comprises the steps of: a) Pre-processing of the workpiece (1) by bringing in the profile (2), wherein the profile (2) has a stock compared with the finished shape, b) Pre-grinding of the profile (2) by a rough-machining process in a grinding machine, wherein a part of the stock is removed and c) Finish-grinding of the profile (2) by a finish-machining process in the grinding machine, wherein the remainder of the stock is removed and the finished shape of the profile (2) is produced. To improve the efficiency of the production especially of rotors of rotary screw compressors and ensure a high quality of the production the invention is characterized in that the pre-grinding and / or the finish-grinding is carried out with a grinding worm (3) by a continuous generative grinding process.

Description

technical field [0001] The invention relates to a method for producing a workpiece in the form of a screw compressor rotor, which has a cylindrical basic shape on which a helical profile is provided on its outer circumference, the method comprising the following steps: a) Pre-machining of the workpiece by producing a profile with a machining allowance relative to the final shape; b) rough grinding of the profile in a rough machining step in a grinding machine, wherein part of the machining allowance is ground away; c) in a grinding machine In the finishing process, the shaped part is ground, wherein the remainder of the machining allowance is ground away and the shaped part is brought into its final shape. The invention also relates to a grinding machine. Background technique [0002] In screw compressors, rotors are required which have an essentially cylindrical outer shape, wherein a helical formation is produced in the outer shape. The two rotors (which constitute compl...

Claims

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Application Information

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IPC IPC(8): B24B19/02B24D3/00B24B9/00
CPCB24B19/022B23F15/08Y10T409/105883
Inventor H-J·海德尔
Owner KAPP GMBH & CO KG WERKZ MASCHFAB
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