A 1/1.25t variable tooth volume flat-groove bimetallic band saw blade

A bimetal belt and split-tooth technology is applied in the direction of metal sawing equipment, metal processing equipment, sawing machine tools, etc., which can solve the problems of low cutting efficiency, difficult chip removal, concave cutting surface, etc., and improve the cutting surface. Quality, guaranteed service life, small rebound effect

Active Publication Date: 2020-09-29
LIAONING INST OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a 1 / 1.25T variable tooth flat tooth groove bimetal band saw blade, which is mainly used for sawing die steel and stainless steel plates, so as to overcome the high cutting hardness of the existing bimetal band saw blades Low cutting efficiency, difficult chip removal, partial sawing, clamping distance, concave cutting surface, etc.

Method used

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  • A 1/1.25t variable tooth volume flat-groove bimetallic band saw blade
  • A 1/1.25t variable tooth volume flat-groove bimetallic band saw blade
  • A 1/1.25t variable tooth volume flat-groove bimetallic band saw blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In this embodiment, the tooth rake angle α=9°; two back angles β 1 and beta 2 β 1 = 30°, β 2=38°; profile angle γ 1 = 51°, γ 2 =43°; the tooth depth is H 1 =7.6mm, the tooth depth is H 2 =6.6mm; tooth bottom arc R on the tooth slot 8 formed between the middle guide tooth 3 and the left sub-tooth I4 and the cog slot 8 formed between the left sub-teeth II6 and the right sub-tooth II7 1 =7.4mm, tooth bottom arc R 2 =4.2mm, tooth bottom arc R on tooth groove 8 formed between left sub-teeth I4 and right sub-teeth I5, right sub-teeth I5 and left sub-teeth II6 1 =9.8mm, tooth bottom arc R 2 = 5.2 mm.

[0026] Each group of sawtooth 2 is composed of five sub-teeth, and the next group is arranged circularly. The tooth pitch is variable pitch 1 / 1.25T, which is divided into large pitch and small pitch. The large pitch is L 2 =25.5mm, small pitch is L 1 =19.6mm, the large pitch is located at the second pitch and the third pitch, and the small pitch is located at the firs...

Embodiment 2

[0028] In this embodiment, the tooth rake angle α=10°; two back angles β 1 and beta 2 β 1 = 29°, β 2 =37°; profile angle γ 1 = 51°, γ 2 =43°; the tooth depth is H 1 =7.6mm, the tooth depth is H 2 =6.6mm; tooth bottom arc R on the tooth slot 8 formed between the middle guide tooth 3 and the left sub-tooth I4 and the cog slot 8 formed between the left sub-teeth II6 and the right sub-tooth II7 1 =7.4mm, tooth bottom arc R 2 =4.2mm, tooth bottom arc R on tooth groove 8 formed between left sub-teeth I4 and right sub-teeth I5, right sub-teeth I5 and left sub-teeth II6 1 =9.8mm, tooth bottom arc R 2 = 5.2 mm.

[0029] This tooth combination is a group of five teeth, and the next group is arranged circularly. The tooth pitch is variable pitch 1 / 1.25T, which is divided into large pitch and small pitch. The large pitch is L. 2 =25.5mm, small pitch is L 1 =19.6mm, the large pitch is located at the second pitch and the third pitch, and the small pitch is located at the first pi...

Embodiment 3

[0031] Tooth front angle α=11°; two back angles β 1 and beta 2 β 1 = 28°, β 2 =36°; profile angle γ 1 = 51°, γ 2 =43°; tooth depth H 1 =7.6mm, tooth depth H 2 =6.6mm; tooth bottom arc R on the tooth slot 8 formed between the middle guide tooth 3 and the left sub-tooth I4 and the cog slot 8 formed between the left sub-teeth II6 and the right sub-tooth II7 1 =7.4mm, tooth bottom arc R 2 =4.2mm, tooth bottom arc R on tooth groove 8 formed between left sub-teeth I4 and right sub-teeth I5, right sub-teeth I5 and left sub-teeth II6 1 =9.8mm, tooth bottom arc R 2 = 5.2 mm.

[0032] Each group of sawtooth 2 is composed of five sub-teeth, and the next group is arranged circularly. The tooth pitch is variable pitch 1 / 1.25T, which is divided into large pitch and small pitch. The large pitch is L 2 =25.5mm, small pitch is L 1 =19.6mm, the large pitch is located at the second pitch and the third pitch, and the small pitch is located at the first pitch, the fourth pitch, and the ...

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Abstract

The invention provides a 1 / 1.25T variable dividing tooth measure and flat tooth groove bimetal band saw blade. The bimetal band saw blade comprises a rack body. A plurality of sawteeth are distributedon the rack body. The sawteeth are arranged in a grouping mode in the length direction of the rack body. Each group of sawteeth is formed by combining five dividing teeth, namely, the middle guide tooth, the left dividing tooth I, the right dividing tooth I, the left dividing tooth II and the right dividing tooth II. The dividing tooth measures of the dividing teeth of each group of the sawteethare variable, wherein the dividing tooth measure F1 of each left dividing tooth I is 0.45-0.50 mm; the dividing tooth measure F2 of each left dividing tooth II is 0.65-0.70 mm; the dividing tooth measure F3 of each right dividing tooth I is 0.65-0.70 mm; the dividing tooth measure F4 of each right dividing tooth II is 0.45-0.50 mm. The height B of the dividing teeth of each group of the sawteeth is 3.0-3.2 mm; and tooth grooves of each group of sawteeth belong to flat tooth grooves. The advantages of the good small dividing tooth measure cut surface quality and high cutting efficiency and thegood big dividing tooth measure chip removal effect and small resilience are fully combined together. The advantages of the variable dividing tooth measure big tooth profile bimetal band saw blade conducting saw-cutting on die steel, stainless steel plates and other big-size and large-viscosity materials are given full play to. Accordingly, the service life and cutting quality of the saw blade areensured.

Description

technical field [0001] The invention belongs to the technical field of cutting tools, and in particular relates to a 1 / 1.25T variable-tooth flat-groove bimetallic band saw blade. Background technique [0002] The bimetallic band saw blade is mainly welded by two metal materials. The tooth tip material is high-speed steel, and the tooth back material is spring steel. At present, it is mainly used in pure iron, gray iron, ductile iron, stainless steel, die steel, and carbon steel. , titanium alloy, copper alloy, nickel-based high-temperature alloy, aluminum alloy and other metal materials cutting, sawing material structure has bar, pipe, I-shaped steel, channel steel and various common shapes. In order to improve sawing quality and sawing efficiency and reduce costs, enterprises need to use bimetallic band saw blades with different materials and tooth shape parameters when sawing workpieces of different specifications and shapes. In addition to the influence of raw material p...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): B23D61/12
Inventor柳艳李贵茂李博王秀萍王瑞
OwnerLIAONING INST OF SCI & TECH