CN111780650B - Band saw blade transverse straightness detector and detection method thereof - Google Patents
Band saw blade transverse straightness detector and detection method thereof Download PDFInfo
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- CN111780650B CN111780650B CN202010660113.XA CN202010660113A CN111780650B CN 111780650 B CN111780650 B CN 111780650B CN 202010660113 A CN202010660113 A CN 202010660113A CN 111780650 B CN111780650 B CN 111780650B
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- 238000001514 detection method Methods 0.000 title claims abstract description 112
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 13
- 238000005259 measurement Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 241000610743 Psathyrotes ramosissima Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
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- 238000000605 extraction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
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Abstract
The invention provides a detector for detecting the transverse straightness of a band saw blade and a detection method thereof. The band saw blade transverse straightness detector comprises a detection block, a measuring head and a measuring instrument, wherein the measuring instrument converts linear displacement of the measuring head into detection data, one side face of the detection block is a detection face for detecting the transverse straightness of the band saw blade, the measuring instrument is installed at one end, far away from the detection face, of the detection block, and the measuring head is installed on the measuring instrument and extends towards the detection face. Compared with the prior art, the transverse straightness detector for the band saw blade does not need to adopt plug gauges with various specifications or replace a proper plug gauge when measuring, can save a large amount of measuring time, improves the measuring efficiency and improves the measuring precision.
Description
Technical Field
The invention relates to the technical field of band saw blade processing, in particular to a band saw blade transverse straightness detector and a detection method thereof.
Background
In the production process of the band saw blade, the blade is bent or S-bent due to the combined action of the stress release and quenching deformation of the band body and the deflection of the saw blade in a quenching furnace. The blade bend of the band saw blade has a large influence on the cutting performance, so that the blade bend of the band saw blade needs to be monitored on line in real time, and a production line is adjusted according to actual conditions.
The existing band saw blade transverse straightness (turtle back) detection is realized by matching a knife edge ruler and a feeler gauge, so that the man-machine operation is inconvenient and the operation is only realized by skilled operation skills. The existing measuring method of the knife edge ruler and the feeler gauge comprises the following steps:
1) the method comprises the following steps of preparing a feeler gauge and a knife edge gauge with various specifications;
2) firstly, placing a knife edge ruler on a band saw blade to observe whether light is transmitted or not, and if the light is transmitted, placing a feeler ruler with proper thickness at the light transmitting position;
3) and (3) lightly pressing the knife edge ruler, and if the feeler gauge can be smoothly pulled out, the thickness of the feeler gauge is a detection value.
In the actual detection of the step 3), the feeler gauge needs to be replaced at least three times to be pulled out smoothly.
Therefore, the above method has several problems as follows:
1) the knife edge ruler has certain thickness and width, so that the actual size cannot be accurately measured;
2) different operators pull out the feeler gauge with different smoothness, so that the measured data is inaccurate;
3) the numerical value extraction in a single measurement needs 4-10 minutes, and the efficiency is low;
4) inconvenient for reading during the process and can not truly reflect the quality of the product.
The prior patent publication No. CN109127779A discloses a detection device and a straightening machine for a band saw blade, which can improve the detection efficiency, but the detection device has a complex structure and high manufacturing cost.
In addition, the directional terms mentioned in the present application are defined as follows:
in the field of band saw blades, the skilled person generally recognizes the direction: longitudinal direction: refers to the length (i.e., working) direction of the band saw blade, transverse: refers to the width direction of the band saw blade.
Disclosure of Invention
The invention aims to provide a transverse straightness detector for a band saw blade and a detection method thereof, which have the advantages of simple structure, convenience in detection and efficiency improvement.
The technical scheme of the invention is as follows: the utility model provides a band saw blade transverse linearity detector includes detects piece, gauge head and will the linear displacement of gauge head changes the measuring instrument that detects data into, a side of detecting the piece is the detection face that detects band saw blade transverse linearity, the measuring instrument is installed detect the piece and keep away from the one end of detection face, the gauge head is installed on the measuring instrument and to the detection face extends.
In the scheme, the detection surface is attached to the band saw blade, and the transverse straightness of the band saw blade is measured by the measuring instrument by observing the gap between the detection surface and the band saw blade. The feelers with various specifications do not need to be adopted, and the suitable feeler does not need to be replaced when in measurement, so that a large amount of measurement time can be saved, the measurement efficiency is improved, and the measurement precision is improved.
Preferably, the detection surface comprises a first detection surface and a second detection surface which are arranged in sequence in the transverse direction, the measuring head is arranged on the second detection surface, and the flatness accuracy of the first detection surface is higher than that of the second detection surface.
The first detection surface is used for preliminary detection of the transverse straightness of the band saw blade, and the measuring head on the second detection surface is used for measuring the transverse straightness deviation value of the band saw blade.
Preferably, the measuring instrument is provided with a measuring rod, the measuring head is arranged at the tail end of the measuring rod, and the measuring rod is arranged in the detecting block.
Preferably, the detection block is provided with an installation groove for accommodating the measuring rod, and the installation groove is provided with a lock nut capable of adjusting the opening degree of the installation groove to fix the measuring instrument.
Through the adjustment of the locking nut, the height of the measuring rod can be vertically displaced so as to adjust the reading on the measuring instrument to return to zero before measurement.
Preferably, the detection block has a V-shaped structure towards the detection surface. The area of the detection surface can be reduced by the V-shaped structure, the processing difficulty and the processing cost of the detection surface can be further reduced, the attaching area of the detection surface and a band saw blade is reduced, and the observation of the light-transmitting position at the gap position is facilitated.
In order to facilitate detection and improve detection precision, the measuring instrument is a mechanical dial indicator or a dial indicator.
The invention also provides a band saw blade transverse straightness detection method, which is carried out by adopting the band saw blade transverse straightness detector and comprises the following steps:
step 2.1, the first detection surface is in parallel contact with the band saw blade, whether a gap exists between the first detection surface and the band saw blade is observed while the first detection surface and the band saw blade are in parallel contact, and if no gap exists, the detector is longitudinally displaced along the band saw blade; if there is a gap, the following steps are required;
step 2.2, moving the measuring head on the second detection surface of the detection block to the gap, and reading and recording the reading on the measuring instrument;
and 3, completing the detection of the transverse straightness of the band saw blade.
Preferably, in step 2.2, the measuring head is moved to the edge of the gap to read data, and then moved to the deep part of the gap to read data, the interval value of the data is a yaw value, and the maximum yaw value is selected as the measured value.
Compared with the related technology, the invention has the beneficial effects that:
the online detection and measurement can be realized, the detection efficiency is greatly improved, and the proficiency of operators is not required;
secondly, the test can be carried out at any time, and the transverse straightness (tortoiseshell) value measured accurately in one time is shortened to 30 seconds from the original 5 minutes;
and thirdly, realizing rapid and accurate reading, wherein the accuracy can reach 0.01mm or 0.005mm (the accuracy is determined according to the selected mechanical meter, if a dial indicator can reach 0.005mm, if a dial indicator can reach 0.01 mm).
Drawings
FIG. 1 is a schematic structural view of a band saw blade transverse straightness detector provided by the present invention;
FIG. 2 is a schematic view of FIG. 1 taken along line A and partially in section;
FIG. 3 is a right side schematic view of FIG. 2;
fig. 4 is an enlarged schematic view of a portion a of fig. 2.
In the attached drawing, 1-detection block, 11-detection surface, 111-first detection surface, 112-second detection surface, 12-installation groove, 2-measuring rod, 3-measuring head, 4-measuring instrument, 41-short pointer, 42-long pointer and 5-locking nut.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.
As shown in fig. 1 to 4, the detector for detecting the transverse straightness of the band saw blade provided by the embodiment includes a detection block 1, a measuring rod 2, a measuring head 3, a measuring instrument 4 and a lock nut 5.
The bottom surface of the detection block 1 is a detection surface 11 for detecting the transverse straightness of the band saw blade. The detection block 1 is in a V-shaped structure towards the detection surface 11. The V-shaped structure enables the width of the detection surface 11 to be reduced, on one hand, the finish machining difficulty and machining cost of the detection block can be reduced, and on the other hand, the small-area detection surface 11 attached band saw blade is more beneficial to achieving the accuracy of straightness detection.
The detection surface 11 includes a first detection surface 111 and a second detection surface 112 arranged in sequence in the transverse direction. The detection block 1 is provided with a mounting groove 12. The mounting groove 12 penetrates from the top of the detection block 1 to the second detection surface 112. And the mounting groove 12 is provided with a locking nut 5 capable of adjusting the opening degree of the mounting groove 12.
The first detection surface 111 is used for preliminary detection of the transverse straightness of the band saw blade 100, and the measuring head on the second detection surface 112 is used for measuring a deviation value of the transverse straightness of the band saw blade 100. Therefore, the accuracy of the flatness of the first detection surface 111 is higher than that of the second detection surface 112. However, in order to facilitate the processing of the detection surface 11, the accuracy of the second detection surface 112 may be improved to match the accuracy of the first detection surface 111.
The measuring instrument 4 is a mechanical dial indicator or a dial indicator in this embodiment. In this embodiment a dial gauge. The measuring instrument 4 is provided with a measuring rod 2 and a measuring head 3 arranged at the tail end of the measuring rod 2. The measuring stick 2 is mounted in the mounting groove 12, and the measuring head 3 is disposed adjacent to the second detection surface 112.
The measuring instrument 4 is provided with a short pointer 41 and a long pointer 42. The short pointers 41 are generally referred to as ones and the long pointers as deciles and percentiles. The surveying instrument 4 converts the linear displacement (linear motion) of the measuring head 3 and the measuring rod 2 into the rotational motion of the short hand 41 and the long hand 42 through the gear and the measuring rod 2 with the rack, and then performs the surveying instrument of reading on the dial.
The detection block 1 is a standard block, can be applied to detection of band saw blades of different specifications together with a measuring instrument, does not need to be replaced, and is good in universality.
The invention also provides a band saw blade transverse straightness detection method, which is carried out by adopting the band saw blade transverse straightness detector and comprises the following steps:
in step S1, the pointers on the measuring instrument are adjusted, and the position where the long pointer 42 points to 0 and the position where the short pointer 41 points to 5 or an intermediate position are determined (the position where the short pointer 41 points is determined based on the maximum value of the self-test detection product).
Step S1.1, if the scale of the short pointer 41 needs to be adjusted, the locking nut 5 needs to be opened anticlockwise, the measuring instrument 4 is moved up and down along the installation groove 12, the short pointer 41 is enabled to reach a required proper numerical value, and then the locking nut 5 is screwed clockwise.
Step S2, the detection face 11 of the detection block 1 is placed at the lateral position of the band saw blade 100:
step S2.1, the first detecting surface 111 is first contacted with the band saw blade 100 in parallel. The parallel contact is observed at the same time whether there is a gap between the two (whether there is light transmission can be observed). If no gap exists, the detector is longitudinally displaced along the band saw blade. If there is a gap, the following steps are required;
and S2.2, moving the measuring head 3 on the second detection surface 112 of the detection block 1 to the gap, firstly moving the measuring head 3 to the edge of the gap to read the minimum data, then moving the measuring head to the deep part of the gap to read the maximum data, wherein the interval value of the data is the deflection value, and the selected maximum deflection value is the measured value.
And step S3, finishing the detection of the transverse straightness of the band saw blade.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (7)
1. The method for detecting the transverse straightness of the band saw blade is characterized by being carried out by adopting a band saw blade transverse straightness detector, wherein the band saw blade transverse straightness detector comprises a detection block (1), a measuring head (3) and a measuring instrument (4) for converting the linear displacement of the measuring head (3) into detection data, one side surface of the detection block (1) is a detection surface (11) for detecting the transverse straightness of the band saw blade, the measuring instrument (4) is arranged at one end, far away from the detection surface (11), of the detection block (1), and the measuring head (3) is arranged on the measuring instrument (4) and extends towards the detection surface (11);
the method for detecting the transverse straightness of the band saw blade comprises the following steps:
step 1, adjusting a pointer on a measuring instrument (4) to return to zero;
step 2, placing the detection surface (11) of the detection block (1) at the transverse position of the band saw blade:
step 2.1, firstly, enabling a first detection surface (111) to be in parallel contact with a band saw blade, observing whether a gap exists between the first detection surface and the band saw blade while the first detection surface and the band saw blade are in parallel contact, and if no gap exists, enabling a detector to longitudinally displace along the band saw blade; if there is a gap, the following steps are required;
2.2, moving a measuring head on a second detection surface (112) of the detection block (1) to a gap, reading a reading on the measuring instrument (4) and recording;
and 3, completing the detection of the transverse straightness of the band saw blade.
2. The method for detecting the transverse straightness of the band saw blade according to claim 1, wherein in the step 2.2, the measuring head (3) is moved to the edge of the gap to read data, then the measuring head is moved to the deep part of the gap to read data, the interval value of the data is a yaw value, and the maximum yaw value is selected as a measured value.
3. The method for detecting the transverse straightness of the band saw blade according to claim 1, wherein the detection surface (11) comprises a first detection surface (111) and a second detection surface (112) which are sequentially arranged in the transverse direction, and the measuring head (3) is arranged on the second detection surface (112); the flatness accuracy of the first detection surface (111) is higher than the flatness accuracy of the second detection surface (112).
4. The method for detecting the transverse straightness of the band saw blade according to claim 1, wherein a measuring rod (2) is arranged on the measuring instrument (4), the measuring head (3) is arranged at the tail end of the measuring rod (2), and the measuring rod (2) is installed in the detecting block (1).
5. The method for detecting the transverse straightness of the band saw blade according to claim 4, wherein the detecting block (1) is provided with a mounting groove (12) for accommodating the measuring rod (2), and the mounting groove (12) is provided with a lock nut (5) capable of adjusting the opening degree thereof to fix the measuring instrument (4).
6. The method for detecting the transverse straightness of the band saw blade according to any one of claims 1 to 5, wherein the detection block (1) is in a V-shaped structure towards the detection surface (11).
7. The method for detecting the transverse straightness of the band saw blade according to any one of claims 1 to 5, wherein the measuring instrument (4) is a mechanical dial indicator or a dial indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010660113.XA CN111780650B (en) | 2020-07-10 | 2020-07-10 | Band saw blade transverse straightness detector and detection method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010660113.XA CN111780650B (en) | 2020-07-10 | 2020-07-10 | Band saw blade transverse straightness detector and detection method thereof |
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| Publication Number | Publication Date |
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| CN111780650A CN111780650A (en) | 2020-10-16 |
| CN111780650B true CN111780650B (en) | 2022-07-12 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5492003A (en) * | 1994-11-23 | 1996-02-20 | Northrop Grumman Corporation | Electronic gap measuring tool |
| CN201508157U (en) * | 2009-06-26 | 2010-06-16 | 罗信精密零件(上海)有限公司 | Simple planeness and straightness measuring instrument |
| CN202119354U (en) * | 2011-05-30 | 2012-01-18 | 宝钢集团新疆八一钢铁有限公司 | Combined ruler used for measuring size of shape defect of steel plate |
| CN105841593A (en) * | 2016-06-15 | 2016-08-10 | 开滦（集团）有限责任公司唐山矿业分公司 | Coupling wheel alignment measuring ruler |
| CN109127779B (en) * | 2018-08-09 | 2019-12-27 | 长沙润伟机电科技有限责任公司 | Detection device for band saw blade and straightening machine |
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