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A processing technology of lawn mower blade

A processing technology and lawn mower technology, which is applied to harvesters, cutters, agricultural machinery and implements, etc., can solve the problems of low processing accuracy and short service life of rotary lawn mower blades, and achieve good blades and improved Tempering stability, high quality steel grade effect

Active Publication Date: 2016-09-07
安庆创跃电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is used to solve the problems of short service life and low machining accuracy of rotary lawn mower blades

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: a kind of processing technology of mower blade, its processing step is as follows:

[0021] (1) use matlab software to build a model, and determine that the preliminary trajectory of the blade is made up of straight lines and arcs;

[0022] Among them, the linear processing trajectory is based on the starting point, which can describe the entire straight line; the arc processing trajectory is to first determine the starting point and end point; calculate the starting angle, radius, coordinates of the starting point, and determine the cutting length and radian;

[0023] (2) Utilize stamping die to carry out stamping to GCr15 steel material, form blade prototype, wherein, blade prototype adopts the shape of imitating sickle blade, and blade is arranged at blade inner end, and described blade gradually thickens from blade to blade back, and the thickness of described blade back is 2mm;

[0024] (3) quenching the blank obtained in step (2) at a temperature of...

Embodiment 2

[0031] Embodiment 2: The difference with Embodiment 1 is: the blade back thickness described in step (2) is 4mm, quenching at 850°C in step (3), heat preservation for 1h, fine grinding spindle speed control in step (4) At 0.320m / s, the speed of the grinding wheel is controlled at 38m / s, and the surface of the blade is heated by light waves at 400°C in step (9).

[0032] The beneficial effect of adopting the above technical solution is: the processing technology of a lawn mower blade in the present invention includes model building → blade blank stamping → quenching → grinding cutting → cutting edge → flaw detection → heat treatment → cooling → reheating treatment. Select GCr15 to be rough material in the step (2) that the present invention mentions, its cost is low and high-quality steel level is high, has characteristics such as good metal strength, plasticity and toughness; The hardness of its workpiece is 28HRC, is convenient to follow-up cutting processing, step The quench...

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Abstract

The invention provides a processing technology of a mower blade and belongs to the technical field of garden equipment processing. The processing technology includes establishing a model, performing punching to acquire a blade blank, performing quenching, performing milling and cutting, performing edging on the blade blank, performing flaw detection, performing heat treatment, performing cooling and performing reheat treatment. By the use of the processing technology, the cutting blade is high in processing accuracy, service life of a mower is prolonged, repeated milling and utilization of the blade is facilitated, anti-corrosion effect of the blade is high, and requirements of modernization production are met.

Description

technical field [0001] The invention relates to the technical field of garden equipment processing, in particular to a processing technology of a lawnmower blade. Background technique [0002] With the development of the economy and the continuous improvement of people's living standards, the garden industry has also developed rapidly, and lawn machinery has also developed rapidly. And the lawnmower is a kind of common machinery necessary in the gardening industry. Now the most efficient mowing is the rotary lawn mower. When the rotary knife mower cuts grass, it relies on the high-speed rotation of the blade to cut grass. It is characterized by strong adaptability to pasture and is suitable for high-yield pastures. It is not neat enough, there are many heavy cuts, and the power required per unit of cutting width is large. The cutting speed of the blade on the high-speed rotating cutter head impacting and cutting pasture (the peripheral speed of the root of the blade edge) i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCA01D34/00B23P15/00
Inventor 程蓓
Owner 安庆创跃电器有限公司
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