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Conversion device for machining oblique flange holes on the back of the high-pressure outer cylinder of the steam turbine with a CNC boring machine

A high-pressure external cylinder and conversion device technology, which is applied in boring/drilling, metal processing equipment, manufacturing tools, etc., can solve problems such as inconsistent processing standards, large axial dimensions of workpieces, and complete processing, so as to ensure processing quality, The effect of improving work efficiency and high work efficiency

Active Publication Date: 2016-09-28
HARBIN TURBINE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the problem that the oblique flange hole on the back of the high-pressure outer cylinder of the steam turbine in the prior art is processed due to the large axial size of the workpiece, and the flange on the other side cannot be processed in one station, so it needs to be turned 180° and re-aligned. clamp, which not only wastes time, but also has the inconsistency between the two processing benchmarks before and after, which leads to the problem of processing errors, and then provides a conversion device for machining inclined flange holes on the CNC boring machine on the back of the high-pressure outer cylinder of the steam turbine

Method used

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  • Conversion device for machining oblique flange holes on the back of the high-pressure outer cylinder of the steam turbine with a CNC boring machine
  • Conversion device for machining oblique flange holes on the back of the high-pressure outer cylinder of the steam turbine with a CNC boring machine
  • Conversion device for machining oblique flange holes on the back of the high-pressure outer cylinder of the steam turbine with a CNC boring machine

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specific Embodiment approach 1

[0007] Specific implementation mode one: combine Figure 1-Figure 3 Describe this embodiment, the conversion device for processing inclined flange holes on the back of the high-pressure outer cylinder of a steam turbine described in this embodiment, which includes two conversion mechanisms 1 and a plurality of spacers 2 for the high-pressure outer cylinder of a steam turbine, and each conversion mechanism 1 includes The conversion pad 1-1 and the conversion body 1-2, the conversion pad 1-1 and the plurality of steam turbine high-pressure outer cylinder pads 2 are blocks with the same height, and the conversion body 1-2 includes the first cuboid 1-3 and The second cuboid 1-4, one end surface of the first cuboid 1-3 is fixedly connected with one end surface of the second cuboid 1-4, the upper half 3 of the high-pressure outer cylinder is fixedly placed on the rotary table of the CNC boring machine, and the high-pressure outer cylinder Between the upper half of the cylinder 3 and...

specific Embodiment approach 2

[0008] Specific implementation mode two: combination Figure 1-Figure 3 Describe this embodiment, the conversion device for machining inclined flange holes on the back CNC boring machine of the steam turbine high-pressure outer cylinder described in this embodiment, the length of the first cuboid 1-3 is d, and the value of d is 30mm, and the second cuboid 1 The length of -4 is n, and the value of n is 100 mm, and the others are the same as in the first embodiment.

[0009] working principle

[0010] In the present invention, every two oblique flange holes to be processed are arranged symmetrically with respect to the vertical plane where the 3 axes of the upper half of the high-pressure outer cylinder are located. 1-2 Determine the zero point of the spindle of the CNC boring machine. The intersection point of the axis of the upper half of the high-pressure outer cylinder 3 and the outer mounting surface of the upper half of the high-pressure outer cylinder steam seal is the z...

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Abstract

The invention relates to a conversion device for machining inclined flange holes in the back of a high-pressure external cylinder of a steam turbine by virtue of a numerical control boring machine, and aims to solve the problem of time waste and machining errors caused by inconsistency of front and rear machining references due to the fact that a flange of a workpiece with a large axial size on the other side cannot be machined at one station and the workpiece is required to be turned by 180 degrees for realignment and clamping when the inclined flange holes in the back of the high-pressure external cylinder of the steam turbine are machined in the prior art. A set of conversion device comprises two conversion mechanisms and a plurality of cushion blocks for the high-pressure external cylinder of the steam turbine, wherein each conversion mechanism comprises a conversion cushion block and a conversion body; the conversion cushion blocks and the cushion blocks for the high-pressure external cylinder of the steam turbine are block bodies with the same height; each conversion body comprises a first cuboid and a second cuboid; the first cuboid of each conversion body is arranged in a rectangular groove. The conversion device is used for the high-pressure external cylinder of the steam turbine.

Description

technical field [0001] The invention relates to a conversion device for machining oblique flange holes by a CNC boring machine on the back of a high-pressure outer cylinder of a steam turbine Background technique [0002] Because the large gantry milling machine PMC6500AG-M2 does not have a CNC universal milling head and the large bridge milling machine 20-10FP500NC in the 1990s is equipped with a universal milling head but it is not digitally controlled, and the angle is adjusted by a dial. The oblique flange hole on the back of the cylinder is compensated for the accessory parameters in the gantry milling machine without universal energy angle milling head, because the FAF260 boring machine has a universal milling head, and more importantly, the processing cost per unit time of the FAF260 boring machine is lower than that of the gantry milling machine , the first choice needs to be processed on a boring and milling machine. When processing on a boring machine, the right-a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B41/00
CPCB23B41/00
Inventor 刘滨刚高岩夏元峰于明哲常海滨
Owner HARBIN TURBINE