CN103076130B - Substrate tension detection method of zero displacement circular saw blade - Google Patents
Substrate tension detection method of zero displacement circular saw blade Download PDFInfo
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- CN103076130B CN103076130B CN201310014966.6A CN201310014966A CN103076130B CN 103076130 B CN103076130 B CN 103076130B CN 201310014966 A CN201310014966 A CN 201310014966A CN 103076130 B CN103076130 B CN 103076130B
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Abstract
The invention relates to a substrate tension detection method of a zero displacement circular saw blade. A substrate of a circular saw blade is put on a detector or a machine and fixed by a specified fixed flange for detection; arbitrary force is applied to a position away from the tooth root of the substrate of the circular saw blade for 10 mm; and when the substrate of the circular saw blade is deformed by the force, a displacement in a positive direction (the same as that of a point of force application) is generated at the point of force application, a displacement in a negative direction (opposite to that of the point of force application) is generated in a position opposite to the point of force application, i.e., a zero displacement point of which a displacement value is 0 can be found on the outer edge of the substrate of the circular saw blade, and an included angle of the corresponding zero displacement point and the point of force application is a zero angle a or b. By detecting the position of the zero displacement point, i.e. the zero angle a or b, the tension condition of the substrate of the circular saw blade can be judged. By utilizing the method disclosed by the invention, tension index inspection or tension presetting of the substrate of the circular saw blade can be simply and conveniently performed, the method cannot be influenced by the applied force, and detection equipment is simple.
Description
Technical field
The invention belongs to saw bit matrix detection technique field, be specifically related to a kind of tension detecting method of null displacement circular saw blade substrate.
Background technology
For the saw industry field of the nonmetallic materials cutting processing such as stone material, cement, glass, ceramic, in order to improve overall precision and the cutting efficiency of cutting machine, and extend its serviceable life, make it more and more higher to the requirement of critical piece saw bit matrix, not only require that saw bit matrix has higher intensity and hardness, good moulds tough type, and require that saw bit matrix has less flatness and suitable tension force (internal stress) requirement.Because of when working operation, flatness is large, then rotational resistance is large, swings large, and cause the vibration of whole cutting machine large, not only affect cutting accuracy, and noise is large, affect its life-span, meanwhile, the joint-cutting of workpiece to be machined also strengthens, and increases consumption of raw materials.For this reason, in saw industry field, certain requirement is all had to the flatness of saw bit matrix, tension value (internal stress).Circular saw blade substrate tension value is manually being adjusted in initialization process, all must detected actual tension (internal stress) distribution situation of circular saw blade substrate by certain detection method, more repeatedly carry out manual synchronizing; Also the tension force being detected circular saw blade substrate by certain detection method is needed whether to meet technological requirement when the complete warehouse-in of Product processing in addition.
Detecting the most direct mode to circular saw blade substrate tension force is observe stress state by deflection: when a saw blade is static by keeping flat, though all internal stresss exist but do not produce any distortion, if but saw blade is applied external force to cause flexural deformation, then the stress of internal memory will encourage deflection more obviously, observes these deflections and just can understand the inner stress state retained of saw blade.Existing circular saw blade substrate tension detecting method mainly contains and checks gap method, 20kgf detection method and 3.5mm displacement method with edge of a knife chi.Edge of a knife chi checks that gap method mainly applies distortion by artificial to saw blade, and the gap size detecting circular saw blade substrate special area with edge of a knife chi judges Tension Distribution situation, and observation and the judgement of this method mainly rely on the accumulation of operating personnel's protracted experience, 20kgf detection method and 3.5mm displacement detecting method are placed on by circular saw blade substrate on detector to fix with the detection ring flange of regulation, use 20kgf detection method (selecting a proof force 20kgf to be applied to apart from 10mm position, lamellar body tooth root portion) or 3.5mm displacement method (in distance 10mm position, lamellar body tooth root portion, saw bit matrix is made to produce a standard displacement, i.e. 3.5 ± 0.5mm) detect and tension value (change in displacement) the positive and negative values distribution situation on point of application angle in 90 ° also distance 10mm position, lamellar body tooth root portion, these two kinds of detection methods need by arranging to the comparatively accurate proof force of circular saw blade substrate applying or after making circular saw blade substrate produce comparatively accurate standard displacement size, just detect tension force by detecting correspondence position change in displacement value, need special setting on checkout equipment, namely these two kinds of detection methods are subject to the impact of force size and are limited by use special pick-up unit.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of tension detecting method of null displacement circular saw blade substrate, and make when detecting circular saw blade substrate tension force not by the impact of force size, checkout equipment is simple, and operating process is comparatively practical simple.
The object of the present invention is achieved like this: a kind of substrate tension detection method of zero displacement circular saw blade, circular saw blade substrate is placed on detector or board and fixes with ring flange, a point of application is got at the adjacent edges of circular saw blade substrate, the point of application presses, make the stressed generation distortion of circular saw blade substrate, a positive-displacement identical with point of application direction is produced in the position of the point of application, and produce the negative sense displacement contrary with point of application direction in point of application opposite location, by using the change in displacement value before and after centimeter check applying power, can find in the outer rim side of circular saw blade substrate a shift value be 0 null displacement point, with the central point of circular saw blade substrate for benchmark, the line of central point and null displacement point and the line angle between central point and the point of application are angle a or b at zero point, measure the size of angle a or b at zero point, the tension force situation of circular saw blade substrate can be judged.
The tooth root 10mm of described point of application distance circular saw blade substrate outer rim.
The tension detecting method of null displacement circular saw blade substrate provided by the invention, by detecting the position of null displacement point, namely zero point angle size, the tension force situation of circular saw blade substrate can be judged.This method is not by the impact of force size, and checkout equipment is simple, and user also can detect on board, the preset and inspection for tension force in the production of saw blade saw bit matrix, is the comparatively practical simple detection method of an operating process.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 be the tension detecting method of null displacement circular saw blade substrate face structural representation.
Fig. 2 is the schematic diagram of the tension detecting method of null displacement circular saw blade substrate.
In figure, 1, the point of application, 2, circular saw blade substrate, 3, null displacement point, 4, fixed flange, 5, dial gauge, a and b is angle at zero point, and X representative does not exert a force circular saw blade substrate, and Y, Z represent saw bit matrix when applying different size power respectively.
?circular saw blade substrate 2 to be detected is placed on detector or board and fixes with the detection fixed flange 4 of regulation, exert a force at the point of application 1 in 10 millimeters, the tooth root portion of distance circular saw blade substrate 2 outer rim, when circular saw blade substrate 2 stress deformation, a forward (identical with point of application direction) displacement F1 is produced in the position of the point of application 1, and be equipped with a negative sense (contrary with point of application direction) displacement at the point of application 1 opposite position, by dial gauge 5 being placed on the end face in ten millimeters, the tooth root portion of circular saw blade substrate 2 outer rim, read the change in displacement value that the change difference of dial gauge 5 before and after applying power is correspondence position, therefore the outer rim side of circular saw blade substrate 2 must have certain any shift value to be 0, this point is null displacement point 3, and null displacement point 3 and the angle of the point of application 1 are angle a or b at zero point, power as applied strengthens, the position of the point of application 1 produces a positive-displacement F2 and then increases, the null displacement point obtaining same position is still 3, null displacement point 3 is angle a or b at zero point with the angle of the point of application 1.By detecting the position of null displacement point 3, namely zero point angle a or b size, the tension force situation of circular saw blade substrate 2 can be judged.Concrete judgement is as follows:
(1) forward tension characteristic: zero point, angle a or b was greater than 90 °, 90 ° of positions have positive dirction to be out of shape, and namely with the equidirectional displacement of force, interior zone has radial pressure, and zone line is expanded, and becomes pot bowl-type;
(2) negative sense tension characteristic: zero point, angle a or b was less than 90 °, 90 ° of positions have negative direction to be out of shape, namely contrary with force direction displacement, there is tangential direction compressive stress perimeter, and perimeter is too expanded, in lotus leaf shape;
(3) zero tension characteristics: zero point, angle a or b was 90 °, without distortion on 90 ° of positions, namely shift value is zero, unstressed, without extending.
According to detecting angle a or b value and above judgement at actual zero point, just can carry out the inspection of tension force index to circular saw blade substrate 2 or tension force preset.
Claims (2)
1. a substrate tension detection method of zero displacement circular saw blade, it is characterized in that: circular saw blade substrate (2) is placed on detector or board and fixes with ring flange (4), a point of application (1) is got at the adjacent edges of circular saw blade substrate (2), the point of application (1) presses, make the stressed generation distortion of circular saw blade substrate (2), a positive-displacement identical with point of application direction is produced in the position of the point of application (1), and produce the negative sense displacement contrary with point of application direction in the point of application (1) opposite location, by using the change in displacement value before and after dial gauge (5) detection applying power, can find in the outer rim side of circular saw blade substrate (2) shift value be 0 null displacement point (3), with the central point of circular saw blade substrate (2) for benchmark, the line of central point and null displacement point (3) and the line angle between central point and the point of application (1) are angle (a at zero point, b), measure angle (a at zero point, b) size, the tension force situation of circular saw blade substrate (2) can be judged.
2. substrate tension detection method of zero displacement circular saw blade according to claim 1, is characterized in that: the described point of application (1) distance circular saw blade substrate (2) marginal tooth root 10mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310014966.6A CN103076130B (en) | 2013-01-16 | 2013-01-16 | Substrate tension detection method of zero displacement circular saw blade |
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| CN201310014966.6A CN103076130B (en) | 2013-01-16 | 2013-01-16 | Substrate tension detection method of zero displacement circular saw blade |
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| CN103076130B true CN103076130B (en) | 2014-12-31 |
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| CN103234471B (en) * | 2013-05-10 | 2016-04-20 | 上海理工大学 | Diamond circular saw film base body detection system and measuring method |
| CN114558971B (en) * | 2022-02-07 | 2024-05-07 | 宜昌迪森智能科技有限公司 | Intelligent longitudinal and transverse strengthening machine |
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| CN2213590Y (en) * | 1994-04-01 | 1995-11-29 | 河北省玉田县锯业总公司 | Stress test of round saw blade and roll-in processing machine tool |
| CN202048889U (en) * | 2011-04-12 | 2011-11-23 | 杭州和源精密工具有限公司 | Saw blade automatic detector |
| CN102615352B (en) * | 2012-04-16 | 2013-08-07 | 黑旋风锯业股份有限公司 | Leveling method of circular saw web base body |
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