A processing method for ultra-long and narrow T-slots

Abstract

A method for processing an ultra-long and narrow T-shaped slot, comprising the following steps: 1. Pre-processing the straight slot; 2. Installing an alignment planer in the main shaft of a gantry boring and milling machine, and rough machining the pre-processed straight slot to obtain a pre-formed T-shaped slot. Groove; the planer is a long strip structure, the planer handle is installed in the main shaft of the gantry boring and milling machine, the rake face of the planer head has a concave arc structure, and the side of the handle near the planer head is opened with a pre-formed T-shaped groove The relief groove of the slot neck; 3. Use the T-slot milling cutter to finish the preformed T-slot to obtain the T-slot. The present invention solves the problem that the narrow T-slot is difficult to process. The ultra-long and narrow T-slot processed by the present invention not only guarantees the processing requirements, but also optimizes the processing, so that the cutting tool is in a reasonable state before, during and after cutting. Through the milling machine The SPOS orientation function of the spindle enables the tool to be automatically indexed at 180° to ensure reciprocating planing on both sides of the T-shaped slot when the direction is changed, making it more than double the processing efficiency of the traditional planer.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a method for processing a T-shaped groove through groove. Background technique [0002] The ultra-long and narrow T-shaped guide rail is the guiding part of the rocket launcher. It consists of a narrow T-slot guide rail. The size of the T-slot is 15*12*38*7300 mm. The width of the neck of the T-slot is B1=15 mm. The height of the groove neck of the groove is B2=10 mm, the width of the bottom of the T-slot is B5=38 mm, and the length of the T-slot L1= is 7300 mm. see figure 1 , The traditional process uses T-slot milling cutter. Due to the narrow cross-sectional shape of the T-slot and the diameter of the narrow shank cannot be greater than 15 mm, the tool diameter cannot be less than 38 mm, especially the T-slot with a length of 7.3 meters. The ratio of the shank diameter to the tool diameter is more than 2 times, which can easily cause the tool to break, making the T-slot ...

AI Technical Summary

Problems solved by technology

see figure 1 , the traditional process is processed by T-slot milling cutter. Due to the narrow cross-sectional shape of the T-slot and the narrow diameter of the tool handle cannot be greater than 15 mm, the diameter of the tool cannot be less than 38 mm, especially for this T-slot with a length of 7.3 meters. If the ratio of the shank diameter to the tool diameter exceeds 2 times, the tool will easily break and make the T-slot thickening impossible. For the current situation of ultra-long and narrow T-slot machining, the existing processing methods cannot meet the demand and become a production bottleneck.

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