Vertical numerical-control deep hole drilling machine

Abstract

The invention discloses a vertical numerical-control deep hole drilling machine. The vertical numerical-control deep hole drilling machine comprises a fixed guide track (1), a movable guide track (2), a Z carriage (3), a movable track feeding motor (4), a movable track feeding lead screw (41), a Z carriage feeding motor (5), a Z carriage feeding lead screw (51), a drilling machine case (6), a positioning chip removing squeezer (7), a drill rod centre frame (8), a hydraulic stabilizer (9) and a deep hole drill bit (01). According to the technical scheme, a Z-axis perpendicular system is modified on the basis of the existing vertical numerical-control milling machine, shortcomings that in the prior art, a positioning and aligning process is troublesome, the workload is high, unproductive time is long, 'chord vibration' is easily caused during hole drilling, and the precision is not high are overcome, deep hole machining can be carried out by using a vertical hole drilling process, the drilling direction of a slender deep hole drill rod is consistent with the gravity action direction, 'chord vibration' is avoided, positioning and aligning are convenient when ultra-thin and deep holes are drilled, the unproductive time is short, and hole drilling precision meets requirements.

Description

technical field [0001] The invention relates to a metal cutting machine tool, in particular to a vertical numerical control deep hole drilling machine used in injection mold manufacturing and processing equipment. Background technique [0002] Injection molds often need to drill ultra-fine deep holes (holes with a length-to-diameter ratio greater than 30:1 are deep holes) during manufacturing and processing. The length-to-diameter ratio of the drilled holes usually exceeds 90:1. Horizontal drilling is commonly used in existing processing techniques. Before horizontal drilling, the process of positioning and alignment is cumbersome, the workload is large, and the auxiliary man-hours are many, and the horizontal drilling process makes the slender deep-hole drill rods subject to gravity. It is very prone to "string vibration" (vibration like a string), and the accuracy of drilling often fails to meet the requirements. [0003] As mentioned above, the existing technology has th...

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Problems solved by technology

[0002] Injection molds often need to drill ultra-fine deep holes (holes with a length-to-diameter ratio greater than 30:1 are deep holes) during manufacturing and processing. The length-to-diameter ratio of the drilled holes usually exceeds 90:1. Horizontal drilling is commonly used in existing processing techniques. Before horizontal drilling, the process of positioning and alignment is cumbersome, the workload is large, and the auxiliary man-hours are many, and the horizontal drilling process makes the slender deep-hole drill pipe subject to gravity. Very prone to "string vibration" (vibration like strings), the accuracy of drilling often does not meet the requirements

[0003] As mentioned above, the existing technology has the problems and deficiencies of cumbersome positioning and alignment process, large workload, many auxiliary man-hours, easy occurrence of "string vibration" in drilling, and low precision.

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