Machine tool and method for machining over-long diameter ratio shaft exceeding machine tool standard

A processing method and machine tool technology, applied in the direction of metal processing mechanical parts, metal processing equipment, manufacturing tools, etc., to achieve the effect of improving the utilization rate, reducing the production cost, and increasing the processing range

Inactive Publication Date: 2009-11-11
SHANGHAI HEAVY MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, existing long-axis machine tools can only process long-axis parts up to 15 meters long

Method used

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  • Machine tool and method for machining over-long diameter ratio shaft exceeding machine tool standard
  • Machine tool and method for machining over-long diameter ratio shaft exceeding machine tool standard
  • Machine tool and method for machining over-long diameter ratio shaft exceeding machine tool standard

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Embodiment Construction

[0014] In order to better understand the technical solution of the present invention, it will be described in detail below through specific embodiments in conjunction with the accompanying drawings:

[0015] see Figure 1 to Figure 4 , a kind of machine tool of the present invention is used for processing the ultra-long-to-diameter ratio axis of super machine tool standard, comprises lathe bed 1, headstock 2, three tailstock guide rails 3, two tool rest guide rails 4, tailstock 5, tool rest 6 , a center frame 7, an additional tailstock guide rail 8 and an additional rack 80, wherein the headstock 2 is fixed on the front end of the bed 1 table; the three tailstock guide rails 3 are fixed on the front and rear of the bed 1 table along the spindle direction At the middle of the three tailstock guide rails 3, a gear rack 30 that can be engaged with the gear fixed at the bottom of the tailstock 5 is fixed on one of the middle ones; and parallel to each other on the table; the tail...

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Abstract

The invention discloses a machine tool and a method for machining an over-long diameter ratio shaft exceeding the machine tool standard. The method comprises the following steps: firstly, leaving a section of chuck dock with an effective length respectively at two ends of a workpiece in advance, and drilling central holes on two end surfaces of the workpiece; secondly clamping one end of the workpiece on a chuck of a headstock, and supporting the other end by a finial on a tailstock; thirdly, coarsely turning the excircle of each section of the workpiece, and reversing the workpiece for turning when a knife rest feeds to the tail end of a knife rest lead rail; fourthly, finely turning the excircle of each section of the workpiece, and reversing and clamping the workpiece for turning when the knife rest feeds to the tail end of the knife rest lead rail; and finally, milling the chuck docks at the two ends and the chamfer angle on a boring lathe, a milling machine or other machine tools. The machine tool and the method for machining an over-long diameter ratio shaft exceeding the machine tool standard achieve the purpose of machining long-shaft parts over 15 m on a common machine tool for machining long shaft parts, thereby reducing the production cost.

Description

technical field [0001] The invention relates to a machine tool and a processing method for processing a shaft with a super length-to-diameter ratio exceeding machine tool specifications. Background technique [0002] Mechanical manufacturing is inseparable from various mechanical processing machine tools. Lathes are mainly used to process various rotary surfaces and end faces, such as cylindrical surfaces, conical surfaces, annular grooves, forming rotary surfaces, end faces, and various threads. During machining, it is usually realized by the rotary motion of the workpiece and the feed motion of the tool. Slender shafts refer to shaft parts whose ratio of length L to diameter d is greater than 20 (ie L / d>20), while the ratio of length L to diameter d of super aspect ratio shafts is greater than 50 shaft parts. For example, the upper work roll in the 16m three-roll plate bending machine and the tie rod in the 165MN hydraulic press are all super-length-to-diameter ratio s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B5/08B23Q1/01B23Q1/72B23P15/14
Inventor 刘巽强黄志祥张宏林
Owner SHANGHAI HEAVY MACHINERY PLANT
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