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A kind of processing method of dehumidification blade assembly surface

A blade assembly and surface processing technology, which is applied in the field of mechanical processing, can solve the problems of poor blade profile, affecting welding quality, and easy bowing, etc., to achieve the effect of ensuring smoothness, uniform force, and smooth profile

Active Publication Date: 2022-05-06
HARBIN TURBINE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention solves the problem that the existing dehumidification blades are clamped at both ends during processing, which is easy to bow and deform, resulting in poor profile of the blade surface. During assembly, a fitter is required to eliminate the gap. Reproduce the gap and affect the welding quality, and then provide a method for processing the assembly surface of the dehumidification blade;

Method used

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  • A kind of processing method of dehumidification blade assembly surface
  • A kind of processing method of dehumidification blade assembly surface
  • A kind of processing method of dehumidification blade assembly surface

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specific Embodiment approach 1

[0040] Specific Embodiment 1: This embodiment provides a method for processing the assembly surface of a dehumidification blade, which is characterized in that: the method is realized through the following steps:

[0041] Step 1: Select the blank: Compared with the ordinary blank, the selected blank has a 7mm process head margin at the root of the blade, and a 5mm process head margin at the end face of the blade crown;

[0042] Step 2: Machining reference plane: use horizontal milling machine and flat grinding machine to process; first use horizontal milling machine to correct the blank selected in step 1, and process the blank with deviation in size into a cuboid blank, and then use flat grinding machine to grind To cut the six surfaces of the cuboid blank, the parallelism of both sides is required to be 0.02mm, and the dimensional tolerance is -0.03~0mm. The parallelism of the other two sides is 0.05 / 100, and the perpendicularity to both sides is 0.03 / 100. The perpendicular...

specific Embodiment approach 2

[0053] Specific embodiment 2: This embodiment is to further limit the step 2 described in the specific embodiment 1. In this embodiment, the cutting parameters of the horizontal milling machine tool used to correct the milling in the step 2 are: spindle speed: 800r / min , Feed speed: 40mm / min, depth of cut: 1-2mm, cutting parameters processed by flat grinding machine tools are: spindle speed: 26m / s, feed speed: 600mm / min; other components and connection methods and specific implementation methods One is the same.

specific Embodiment approach 3

[0054] Specific embodiment 3: This embodiment is to further limit the step 4 described in the specific embodiment 1. In this embodiment, in the step 4, a powerful grinding machine is used to finish the inner arc of the assembly, and the processing parameters of the fine milling are selected. :

[0055] Cutting depth 0.1mm 6 cutters, spindle speed 26m / s, feed speed 600mm / min;

[0056] Cutting depth 0.05mm 6 knives, spindle speed 26m / s, feed speed 600mm / min;

[0057] Cutting depth 0.02mm2 cutter, spindle speed 26m / s, feed speed 600mm / min;

[0058] Cutting depth 0.02mm 2 knives, spindle speed 26m / s, feed speed 600mm / min;

[0059] The depth of cut is 0.01mm, 2 knives, the spindle speed is 26m / s, and the feed rate is 600mm / min.

[0060] Other compositions and connection methods are the same as those in the second embodiment.

[0061] This embodiment adopts multi-feed grinding, and the single grinding amount is 0.1mm, 0.05mm, 0.02mm, 0.02mm, 0.1mm respectively. The cutting amoun...

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Abstract

A method for processing the assembly surface of a dehumidification blade belongs to the field of mechanical processing methods. The present invention aims to solve the problem that the existing dehumidification blade adopts the method of clamping both ends in the processing process, which is easy to bend and deform, resulting in poor blade profile, and needs to be assembled during assembly. The fitter eliminates the gap, and the gap is reproduced when the end face of the blade crown is reassembled through the beveling process, which affects the welding quality. The present invention changes the clamping method of the existing processing method for the assembly surface of the dehumidification blade, and changes the processing process accordingly. , when selecting the blank, reserve the margin of the process section at both ends, and use the clamp to clamp the process section at both ends during processing, which effectively avoids the shortage of the existing way of clamping the two ends of the workpiece. The present invention is mainly used for dehumidification blades Manufacturing of assembly surfaces.

Description

technical field [0001] The invention relates to the field of mechanical processing methods, in particular to a method for processing an assembly surface of a dehumidification blade. Background technique [0002] Regarding the blades of the dehumidification stage, they are circular arc surfaces, and the distance between the center of the circle and the air inlet and outlet sides is quite different, resulting in a large arc swing, and there is no overlapping surface on the inlet and outlet sides of the blades. The radial pitch of the blades is small and radially thin. It brings great difficulty to the processing and clamping of the blade. The previous processing adopts the method of clamping both ends, which is easy to bow and deform. As a result, the profile of the blade assembly surface is poor. During the pre-assembly, the gap between adjacent blades is out of tolerance, and the fitter needs to eliminate the gap. After the pre-assembly, the end face of the blade crown is r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/02
CPCB23P15/02
Inventor 王红海孙珂庄乾才刘铁闫原车德建齐琳倩于华张卓然杨佳财
Owner HARBIN TURBINE
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