Rapid replacement auxiliary device and replacement method for laser of hot rolling straightness instrument

Abstract

The invention discloses an auxiliary device for quickly replacing a laser of a hot rolling flatness instrument and a replacing method. The auxiliary device for quickly replacing the laser of the hot rolling flatness instrument comprises a box body, an adjustable reflecting plate and a lamp source, a plurality of front-end fixing knobs and rear-end fixing knobs are respectively arranged on the front side and the rear side of the bottom of the box body; the adjustable reflecting plate is rotatably arranged at the lower end of the opening of the box body and is fixed with the box body through the front end fixing knob, the lower part of the adjustable reflecting plate is transparent and movably provided with a non-transparent light source slit plate at the opening of the box body, and the light source slit plate is provided with a plurality of light source slits; the lamp source is arranged on the inner side of the box body, and the light emitting direction of the lamp source faces the opening of the box body. The device is matched with the method, so that the purpose of quickly replacing and adjusting the position of the laser can be achieved, the consumption of personnel and time can be reduced, the working efficiency is improved, and meanwhile, the maintenance capability of field operation personnel on straightness equipment is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of large-scale measuring instruments, and in particular relates to a laser quick-replacement auxiliary device and a replacement method for a hot rolling flatness instrument. Background Art

[0002] At present, many hot rolling production lines (such as hot rolling 2250 production line, 1580 production line, etc.) of steel enterprises are equipped with flatness meters (such as the flatness meter based on laser measurement technology of foreign NDC company) at the finishing exit. This flatness meter can measure the surface flatness of hot-rolled finished strip steel, so it plays a very important role in the hot rolling production process. This flatness meter generally contains 27 lasers, divided into 3 modules, each module is equipped with 9 lasers, and has high requirements for the position of the laser. However, during the long-term use of the instrument, the energy of the laser itself is also continuously consumed. When a certain period is reached, the light intensity of the laser weakens, and a new laser needs to be replaced. After replacing the new laser, because the position of the laser changes or the position of the module changes due to touch during the laser replacement process, the position of the newly replaced laser on the module needs to be adjusted. At present, the general practice is to install a calibration frame and place a calibration plate on the roller in the vertical position below the flatness meter, and use the marked position on the calibration plate as the position reference, and then replace or adjust the position of the laser. This makes the process of replacing and adjusting the position of a single laser cumbersome, time-consuming and labor-intensive, and can only be performed during maintenance or shutdown times. The roller needs to be stopped after cooling, and there cannot be cross-operation in the surrounding area. The cooperation of at least two people is required to adjust the laser position. Even for skilled operators, it takes about four hours from preparation to completion, affecting the orderly progress of production.

[0003] With the rapid development and progress of science and technology, the steel rolling site will eventually develop towards intelligentization, and equipment maintenance work must also meet the requirements of high speed and efficiency. The traditional maintenance methods or methods that consume a lot of manpower and material resources will be gradually eliminated. Therefore, for a large number of situations that require emergency adjustments, such as the laser needs to be replaced due to its own wear and tear or the laser position deviation caused by the vibration of the hot rolling site, the operating personnel need to be able to adjust it in place in a short time to reduce the impact on normal production and achieve the purpose of rapid maintenance. Summary of the invention

[0004] In view of the technical problem that the laser replacement or position adjustment process in the flatness meter in the background technology is cumbersome, time-consuming and labor-intensive, and can only be performed during maintenance or shutdown, thus affecting normal production, the present invention provides a hot rolling flatness meter laser quick replacement auxiliary device and replacement method, which can not only achieve the purpose of quick replacement and adjustment of the laser position, but also reduce the consumption of manpower and time, improve work efficiency, and improve the maintenance ability of on-site workers on the flatness equipment.

[0005] The technical solution of the present invention to solve the technical problem is as follows:

[0006] On the one hand, the present invention provides a hot rolling flatness instrument laser quick replacement auxiliary device, which includes a box, an adjustable reflector and a light source; the box is open on one side, and a plurality of front end fixing knobs and a rear end fixing knobs are respectively arranged on the front and rear sides of its bottom; the adjustable reflector is rotatably arranged at the lower end of the box opening and is fixed to the box through the front end fixing knob, and its lower part is located at the box opening and is transparent and movably provided with an opaque light source slit plate, and a plurality of light source slits are arranged on the light source slit plate; the light source is arranged on the inner side of the box, and the light emission direction thereof is toward the opening of the box.

[0007] Furthermore, the light source is provided with a power source, which may be a rechargeable battery or a non-rechargeable battery.

[0008] Furthermore, the width of the light source gap is preferably 1 mm and the length is 20 mm.

[0009] Another aspect of the present invention provides a method for quickly replacing a hot rolling flatness instrument laser, wherein the flatness instrument comprises a laser module and an instrument glass window arranged up and down, wherein the laser module comprises a mounting bracket, a bracket rotation stepping motor arranged on the upper surface of the mounting bracket, and a plurality of lasers arranged on the lower surface of the mounting bracket, wherein the plurality of lasers are arranged in a plurality of rows, and each row comprises at least three lasers, and the steps include:

[0010] S1. The hot rolling flatness instrument laser quick replacement auxiliary device described in the above technical solution is arranged on the instrument glass window at a side position below the laser module and fixed to the instrument glass window via the rear end fixing knob, and the adjustable reflector is adjusted to form a predetermined angle with the instrument glass window and fixed via the front end fixing knob;

[0011] S2. Determine the number and spacing of the light source slots on the light source slot plate according to the number and spacing of the laser rows on the laser module, and ensure that the spacing between adjacent light source slots is consistent with the spacing between two adjacent rows of lasers;

[0012] S3, adjusting the mounting bracket by rotating the stepping motor through the bracket so that the laser beams emitted by at least three lasers in each row form a predetermined angle with the instrument glass window, and form a first laser point, a second laser point and a third laser point on the instrument glass window respectively, and at the same time, each of the laser beams, after being reflected by the instrument glass window, forms a first reflection point, a second reflection point and a third reflection point on the adjustable reflection plate respectively, and marking each reflection point;

[0013] S4, setting the light source slit plate at the lower part of the adjustable reflector at the opening of the box body, and adjusting the position of the light source slit plate so that the slit light emitted by the light source from each of the light source slits coincides with the first laser point, the second laser point and the third laser point of each row;

[0014] S5. Take two of the at least three lasers in each row as a reference for replacing another laser. In the current state of the laser module, replace one of the lasers and roughly install and fix the new laser. Observe whether the reflection points formed on the adjustable reflector plate after the laser light emitted by the other two lasers is reflected by the instrument glass window coincides with the positions of the reflection points corresponding to the original mark: if the positions coincide, it means that the state of the laser module has not changed, no adjustment is required, and the replaced laser can be tightened; if the position deviates, it means that the state of the laser module has changed. By adjusting the laser module, the reflection points formed on the adjustable reflector plate by the laser light emitted by the other two lasers after being reflected by the instrument glass window coincide with the positions of the originally marked reflection points, and then adjusting the newly replaced laser so that the laser point formed by the laser light emitted by it on the instrument glass window coincides with the corresponding slit light, and then moving the laser point along the slit light, when the reflection point formed on the adjustable reflector plate by the laser light emitted by the laser after being reflected by the instrument glass window coincides with the reflection point corresponding to the laser, it is indicated that this point is a standard point, and the replaced laser is fastened;

[0015] S6. Remove the hot rolling flatness instrument laser quick replacement auxiliary device, adjust the laser module to return to the original working position, and complete the replacement of the laser.

[0016] Furthermore, each reflection point marked on the adjustable reflection plate is a circular dot with a diameter less than 2 mm.

[0017] Furthermore, the angle between the adjustable reflector and the instrument glass window is 45°, and the angle between the laser light emitted by the laser and the instrument glass window is 45°.

[0018] Compared with the prior art, the hot rolling flatness instrument laser quick replacement auxiliary device and replacement method described in the present invention have the following beneficial effects:

[0019] (1) The replacement auxiliary device of the present invention has a simple, reasonable and practical structure, is easy to manufacture and use, and is very convenient to carry, install and disassemble.

[0020] (2) The replacement auxiliary device of the present invention, in combination with the corresponding replacement method, can quickly complete the replacement of the flatness instrument laser and / or the adjustment of the laser position without the cooperation of multiple people. A single person can complete the work in a short time, effectively saving manpower and material resources and improving the effect of reducing costs and increasing efficiency.

[0021] (3) The replacement auxiliary device of the present invention is combined with a corresponding replacement method, which changes the previous practice of replacing the laser and / or adjusting the laser position only during inspection or shutdown, and can now complete the relevant operations online, which is convenient and fast.

[0022] (4) The replacement auxiliary device of the present invention is combined with a corresponding replacement method, which changes the previous situation that laser replacement and / or laser position adjustment cannot be performed cross-operation. Now the operation can be completed within the frame of the instrument itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a hot rolling flatness meter laser quick replacement auxiliary device in use according to the present invention;

[0024] In the figure: 1. Box; 2. Adjustable reflector; 3. Light source; 4. Power supply; 5. Rear fixing knob; 6. Front fixing knob; 7. Light source gap; 8. Slit light; 9. Light source light; 10. Instrument glass window; 11. Light source gap plate; 12. Laser light; 13. Laser reflected light; 14. Laser; 15. Mounting bracket; 16. Bracket rotating stepper motor; 17. Laser module; A. First laser point; B. Second laser point; C. Third laser point; A', first reflection point; B', second reflection point; C', third reflection point. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the present disclosure belongs. The terms "upper", "lower", "left", "right", "front", "back", etc. used in the patent application specification and claims of the present disclosure are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship also changes accordingly; "connected" or "connected" and similar terms are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Anything not described in detail in the present invention is a known technology to those skilled in the art.

[0027] Embodiment 1:

[0028] like Figure 1 As shown, a quick replacement auxiliary device for a hot rolling flatness meter laser includes a box 1, an adjustable reflector 2 and a light source 3. The box 1 is a carrier of the entire replacement auxiliary device, one side of which is open, and a plurality of front fixing knobs 6 and a plurality of rear fixing knobs 5 are respectively arranged on the front and rear sides of the bottom. The adjustable reflector 2 is rotatably arranged at the lower end of the opening of the box 1 and is fixed to the box 1 through the front fixing knob 6. The lower part of the adjustable reflector 2 is located at the opening of the box 1 and is transparent and movable. An opaque light source slit plate 11 is arranged on the light source slit plate 11. The light source slit plate 11 is provided with a plurality of light source slits 7. The width of the light source slit 7 is 1 mm and the length is 20 mm. The light source 3 is arranged on the inner side of the box 1, and the light emission direction thereof is toward the opening of the box 1. A power supply 4 is arranged on the light source 3. The power supply 4 is a rechargeable battery or a non-rechargeable battery, which is easy to replace.

[0029] The hot rolling flatness meter laser quick replacement auxiliary device of the present invention has a simple structure, is easy to manufacture, and is convenient to carry, install, disassemble and use, and has strong practicality.

[0030] Embodiment 2:

[0031] like Figure 1As shown, the flatness instrument includes a plurality of laser modules 17 arranged up and down and an instrument glass window 10. The laser of the flatness instrument works in a module form. Each laser module 17 includes a mounting bracket 15, a bracket rotating stepper motor 16 arranged on the upper surface of the mounting bracket 15, and a plurality of lasers 14 arranged on the lower surface of the mounting bracket 15. For example, each laser module 17 is installed with 9 lasers 14. The 9 lasers 14 are evenly arranged in 3 rows, with three lasers 14 in each row. The mounting bracket 15 can be driven to rotate by the bracket rotating stepper motor 16, thereby adjusting the direction of the laser light emitted by each laser 14. The relative positions of the lasers 14 are fixed, and the rotation angles are the same, so they can be regarded as a whole. Each laser 14 emits a laser light 12 and irradiates the surface of the strip below through the instrument glass window 10 for measurement. The flatness meter adopts a frame structure, and the meter glass window 10 thereon is a detachable structure, which is convenient for replacing the laser 14 inside. This structure can be used to install the hot rolling flatness meter laser quick replacement auxiliary device in Example 1.

[0032] The present invention provides a method for quickly replacing a hot rolling flatness instrument laser, comprising:

[0033] S1. The hot rolling flatness meter laser quick replacement auxiliary device in Example 1 is arranged on the instrument glass window 10 at a position below the laser module 17 and fixed to the instrument glass window 10 through the rear end fixing knob 5, so that the device is fixed to the instrument glass window 10 as a whole and no longer moves. The adjustable reflector 2 is adjusted to form a 45° angle with the instrument glass window 10 and fixed through the front end fixing knob 6. Before installing the hot rolling flatness meter laser quick replacement auxiliary device, the power supply 4 needs to be installed on the light source 3. The color of the light source 3 is selected to be the color corresponding to the color of the laser light emitted by the laser 14. For example, if the color of the laser light 12 is red, the color of the light source 3 can be selected to be green so as to make the contrast obvious.

[0034] S2. Determine the number and spacing of the light source slots 7 on the light source slot plate 11 according to the number and spacing of the rows of lasers 14 on the laser module 17, and make them to ensure that the spacing between adjacent light source slots 7 is consistent with the spacing between two adjacent rows of lasers 14; the light source slot plate 11 can also be set to a retractable structure so that the position of the light source slots 7 thereon can be adjusted according to actual conditions;

[0035] S3, adjusting the mounting bracket 15 by rotating the stepping motor 16 through the bracket so that the laser light 12 emitted by each row of three lasers 14 forms an angle of 45° with the instrument glass window 10, and forms a first laser point A, a second laser point B and a third laser point C on the instrument glass window 10, respectively. At the same time, each laser reflected light 13 after each laser light 12 is reflected by the instrument glass window 10 forms a first reflection point A', a second reflection point B' and a third reflection point C' on the adjustable reflector 2, and marking each reflection point, and each marked reflection point uses a dot with a diameter less than 2 mm;

[0036] S4, a light source slit plate 11 is arranged at the opening of the box body 1 at the lower part of the adjustable reflector 2, and the position of the light source slit plate 11 is adjusted so that the slit light 8 emitted from each light source slit 7 by the light source 3 coincides with the first laser point A, the second laser point B and the third laser point C of each row;

[0037] S5. Take two of the three lasers 14 in each row as a reference for replacing another laser 14. Assume that one of the lasers 14 in a row needs to be replaced. The laser 14 corresponds to the second laser point B and the second reflection point B'. Turn off the laser power supply to ensure that all current components and the hot rolling flatness instrument laser quick replacement auxiliary device are fixed. Under the current state of the laser module 17, replace the laser 14 that needs to be replaced and roughly install and fix the new laser 14 (roughly installing and fixing means that after the laser 14 is installed on the mounting bracket 15, it is simply fixed first, and its relative position can be adjusted in a small range as needed). Then, power on the laser and observe whether the reflection points formed on the adjustable reflector 2 by the laser light 12 emitted by the other two lasers 14 after being reflected by the instrument glass window 10 coincide with the reflection point positions A' and C' corresponding to the original mark: If the position If the positions of the laser modules 17 and the laser modules 17 are aligned, it indicates that the position state of the laser module 17 has not changed, and no adjustment is required, and the replaced laser 14 can be tightened; if there is a deviation in the position, it indicates that the state of the laser module 17 has changed, and the laser module 17 is adjusted by rotating the stepping motor 16 through the bracket so that the laser beams 12 emitted by the other two lasers 14 are reflected by the instrument glass window 10, and the reflection points formed on the adjustable reflection plate 2 coincide with the positions of the originally marked reflection points, and then the newly replaced laser 14 is adjusted so that the laser point formed by the laser beams 12 emitted by the laser 14 on the instrument glass window 10 coincides with the corresponding slit beam 8, and then the point position of the laser 14 is moved along the slit beam 8, and when the reflection point formed on the adjustable reflection plate 2 by the laser beams 12 emitted by the laser 14 after being reflected by the instrument glass window 10 coincides with the reflection point B' corresponding to the laser 14, it indicates that this point position is a standard point position, and the replaced laser 14 is tightened;

[0038] S6. Remove the quick replacement auxiliary device of the hot rolling flatness meter laser, adjust the laser module 17 to return to the original working position through the bracket rotating stepper motor 16, remove the quick replacement auxiliary device of the hot rolling flatness meter laser, clean the adjustable reflector 2, and complete the replacement of the laser 14.

Claims

1. A hot rolling flatness instrument laser quick replacement auxiliary device, characterized in that: include: A box body (1), wherein one side of the box body (1) is open, and a plurality of front-end fixing knobs (6) and a plurality of rear-end fixing knobs (5) are respectively arranged on the front and rear sides of the bottom; An adjustable reflector (2), the adjustable reflector (2) being rotatably disposed at the lower end of the opening of the box (1) and being fixed to the box (1) via the front fixing knob (6), the lower portion of which is located at the opening of the box (1) and is transparently and movably provided with an opaque light source slit plate (11), the light source slit plate (11) being provided with a plurality of light source slits (7); A light source (3), the light source (3) being arranged inside the box (1), and the light emission direction of the light source (3) being directed toward the opening of the box (1).

2. According to claim 1, a hot rolling flatness meter laser quick replacement auxiliary device is characterized in that: The light source (3) is provided with a power supply (4).

3. According to claim 2, a hot rolling flatness meter laser quick replacement auxiliary device is characterized in that: The power source (4) is a rechargeable battery or a non-rechargeable battery.

4. According to claim 1, a hot rolling flatness meter laser quick replacement auxiliary device is characterized in that: The light source gap (7) has a width of 1 mm and a length of 20 mm.

5. A method for quickly replacing a laser of a hot rolling flatness instrument, wherein the flatness instrument comprises a laser module (17) and an instrument glass window (10) arranged up and down, wherein the laser module (17) comprises a mounting bracket (15), a bracket rotation stepping motor (16) arranged on the upper surface of the mounting bracket (15), and a plurality of lasers (14) arranged on the lower surface of the mounting bracket (15), wherein the plurality of lasers (14) are arranged in a plurality of rows, and each row comprises at least three lasers (14), wherein: include: S1. The hot rolling flatness instrument laser quick replacement auxiliary device according to any one of claims 1 to 4 is arranged on the instrument glass window (10) at a side position below the laser module (17) and fixed to the instrument glass window (10) via the rear end fixing knob (5); the adjustable reflector (2) is adjusted to form a predetermined angle with the instrument glass window (10) and fixed via the front end fixing knob (6); S2, determining the number and spacing of the light source slots (7) on the light source slot plate (11) according to the number of rows and row spacing of the lasers (14) on the laser module (17), and ensuring that the spacing between adjacent light source slots (7) is consistent with the spacing between two adjacent rows of lasers (14); S3, adjusting the mounting bracket (15) by rotating the stepping motor (16) of the bracket so that the laser light (12) emitted by at least three lasers (14) in each row forms a predetermined angle with the instrument glass window (10), and respectively forms a first laser point (A), a second laser point (B) and a third laser point (C) on the instrument glass window (10); at the same time, each of the laser light (12) forms a first reflection point (A'), a second reflection point (B') and a third reflection point (C') on the adjustable reflector (2) after being reflected by the instrument glass window (10), and marking each reflection point; S4, arranging the light source slit plate (11) at the lower part of the adjustable reflector (2) at the opening of the box (1), and adjusting the position of the light source slit plate (11) so that the slit light (8) emitted by the light source (3) from each of the light source slits (7) coincides with the first laser point (A), the second laser point (B) and the third laser point (C) of each row; S5. Two of the at least three lasers (14) in each row are used as a reference for replacing another laser (14). In the current state of the laser module (17), one of the lasers (14) is replaced and the new laser (14) is roughly installed and fixed. Then, the reflection points formed on the adjustable reflector (2) after the laser light (12) emitted by the other two lasers (14) is reflected by the instrument glass window (10) to coincide with the positions of the reflection points corresponding to the original marks. If the positions coincide, it means that the state of the laser module (17) has not changed, and no adjustment is required. The replaced laser (14) can be tightened. If the positions deviate, it means that the state of the laser module (17) has changed. By adjusting the laser The module (17) makes the reflection points formed on the adjustable reflector (2) after the laser light (12) emitted by the other two lasers (14) is reflected by the instrument glass window (10) coincide with the positions of the previously marked reflection points, and then the newly replaced laser (14) is adjusted so that the laser point formed by the laser light (12) emitted by the laser (14) on the instrument glass window (10) coincides with the corresponding slit light (8), and then the point position of the laser (14) is moved along the slit light (8). When the reflection point formed on the adjustable reflector (2) after the laser light (12) emitted by the laser (14) is reflected by the instrument glass window (10) coincides with the reflection point corresponding to the laser (14), it is indicated that this point position is a standard point position, and the replaced laser (14) is fastened; S6. Remove the hot rolling flatness meter laser quick replacement auxiliary device, adjust the laser module (17) to restore it to the original working position, and complete the replacement of the laser (14).

6. According to claim 5, a method for quickly replacing a hot rolling flatness meter laser is characterized in that: Each reflection point marked on the adjustable reflection plate (2) is a circular point with a diameter less than 2 mm.

7. According to claim 5, a method for rapid replacement of a hot rolling flatness meter laser is characterized in that: The angle between the adjustable reflector plate (2) and the instrument glass window (10) is 45°, and the angle between the laser light (12) emitted by the laser (14) and the instrument glass window (10) is 45°.

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