阅读说明：本技术 一种激光刻痕聚焦辊高度位置快速校正装置及方法 (Device and method for quickly correcting height position of laser nicking focusing roller ) 是由 侯长俊 向邦林 郭万青 吴树建 徐国忠 卢纪平 高煜 邢国峰 于 2018-06-19 设计创作，主要内容包括：本发明揭示了一种激光刻痕聚焦辊高度位置快速校正装置及方法,通过机械方式检测和放大显示聚焦辊位移量,以及配套设置带标尺刻度显示的顶杆装置,实现聚焦辊位置的快速校正,便于对焦点位置进行过程监控,有效消除了焦点位置不准造成的刻痕改善率降低问题,提高刻痕效果。本发明实施简单,成本低,能够在10分钟内确认聚焦辊位置状态,大大缩短确认时间；采用机械检测方式,没有零位漂移问题,检测准确；作为对工艺过程和产品质量的重要监控手段,激光刻痕聚焦辊高度位置快速校正装置及方法简单、实用,易于复制,具有较好的推广应用前景。(The invention discloses a device and a method for quickly correcting the height position of a laser nicking focusing roller. The method is simple to implement, low in cost and capable of confirming the position state of the focusing roller within 10 minutes, and greatly shortens the confirmation time; a mechanical detection mode is adopted, so that the zero drift problem is avoided, and the detection is accurate; as an important monitoring means for the process and the product quality, the device and the method for quickly correcting the height position of the laser nick focusing roller are simple and practical, are easy to copy and have better popularization and application prospects.)

1. The utility model provides a quick correcting unit of laser nick focusing roller height position which characterized in that: the device comprises a positioning ejector rod device, wherein the positioning ejector rod device is arranged on a scanning box;

the positioning ejector rod device comprises an ejector rod, a base, an ejector rod bottom flat plate, a tray and a tightening positioning nut, wherein the base is fixed on the scanning box above the focusing roller, a hole in the base is in clearance fit with the ejector rod, and a locking knob is arranged on the base and used for fixing the ejector rod; the upper end of the ejector rod is provided with a pointer, the tip of the pointer is provided with a scale, and the scale is provided with a magnifying lens capable of moving up and down; the lower end of the ejector rod is provided with an ejector rod bottom flat plate, and the middle of the bottom of the ejector rod bottom flat plate is marked with a marking line or a slot; tray and base swing joint and fixed through screwing up set nut, the tray can be rotatory in the horizontal direction, and when the ejector pin did not use, the ejector pin rose and fixed with the locking knob, and the tray is rotatory to the ejector pin below to screw up set nut, prevent that the tray from rotating.

2. The device for rapidly correcting the height position of the laser scoring focusing roller as claimed in claim 1, wherein: the length of the ejector rod is determined according to the distance between the installation position and the focusing roller at the focal position, and the safe length is reserved.

3. The device for rapidly correcting the height position of the laser scoring focusing roller as claimed in claim 1, wherein: the fit clearance between the base and the ejector rod and the minimum scale of the scale are not more than the requirement on the height position precision of the focusing roller; the thickness of the pointer at the tip end is smaller than the minimum scale of the scale.

4. The apparatus for rapidly correcting the height position of a focusing roller of a laser scoring as claimed in claim 3, wherein: the fit clearance between the base and the ejector rod is 0.05-0.10 mm, the minimum scale of the scale is 0.1mm, and the tip of the pointer is 0.01-0.04 mm.

5. The device for rapidly correcting the height position of the laser scoring focusing roller as claimed in claim 1, wherein: the magnifying lens magnification is more than or equal to 10 times.

6. The device for rapidly correcting the height position of the laser scoring focusing roller as claimed in claim 1, wherein: the bottom surface of the ejector rod bottom flat plate is flat and kept horizontal, and marking or grooving marks are made on the bottom surface and the side surface of the ejector rod bottom flat plate.

7. The apparatus for rapidly correcting the height position of a focusing roller of a laser scoring as claimed in claim 6, wherein: the length and width of the flat plate slot at the bottom of the ejector rod are as follows: the length L is more than or equal to 100mm, and the width D is more than or equal to 50mm, wherein the length L is along the length direction of the focusing roller.

8. The device for rapidly correcting the height position of the laser scoring focusing roller as claimed in claim 1, wherein: the ejector rod is triangular or rectangular.

9. The device for rapidly correcting the height position of the laser scoring focusing roller as claimed in claim 1, wherein: the ejector rod, the base, the ejector rod bottom plate, the pointer, the scale and the screwing positioning nut are made of stainless steel or materials plated with antirust coatings.

10. The device for rapidly correcting the height position of the laser scoring focusing roller as claimed in claim 1, wherein: the bottom of the tray is higher than the top elevation of the focusing roller during upper limit.

11. The apparatus for rapidly correcting the height position of a focusing roller for laser scoring as claimed in claim 10, wherein: and a certain safety distance d is kept between the bottom of the tray and the upper limit position of the focusing roller, and the safety distance d is more than or equal to 50 mm.

12. The device for rapidly correcting the height position of the laser scoring focusing roller as claimed in claim 1, wherein: the positioning ejector rod device is installed after equipment is debugged or the accuracy of the position height of the focusing roller is determined, and the focusing roller is a brand new roller; when the pointer is on the scale of 0, the flat plate at the bottom of the ejector rod is just contacted with the focusing roller at the focus position, and the marking or slotting mark is completely overlapped with the top of the focusing roller.

13. A method for quickly correcting the height position of a laser scoring focusing roller is characterized by comprising the following steps:

s1, raising the focusing roller to the focus position, locking the focusing roller to stop operation and not rotating;

s2, opening the tray, opening the locking knob, and naturally descending the ejector rod under the action of self gravity until the bottom flat plate is contacted with the focusing roller;

s3, adjusting levelness of the focusing roller:

s3.1, checking the contact condition of the axial top of the focusing roller and the bottom flat plate, if the focusing roller is completely attached, the levelness is normal, otherwise, the adjustment is needed;

s3.2, if the axial top of the focusing roller is not completely contacted with the bottom flat plate, adjusting the non-contacted side shaft head of the focusing roller by adopting a gasket or a positioning nut until the axial direction of the focusing roller is completely contacted with the bottom flat plate;

s4, adjusting the verticality of the focusing roller:

s4.1, marking or slotting the center of the bottom flat plate;

s4.2, checking the contact condition of the bottom flat plate mark or the groove and the axial top of the focusing roller;

s4.3, if the bottom flat plate mark or the groove is completely coincided with the axial top of the focusing roller, the verticality of the focusing roller is normal, otherwise, the shaft heads on the two sides of the focusing roller are adjusted until the bottom flat plate mark or the groove is completely coincided with the axial top of the focusing roller;

s5, adjusting the height and the position of the focusing roller:

s5.1, reading scales of a pointer on a scale;

s5.2, if the indication scale is 0, the operation is normal, otherwise, the operation needs to be adjusted, and the adjusting method comprises the following steps: the height of the focusing roller is increased or decreased until the pointer is at the 0 scale position of the scale, and then the encoder is corrected;

and S6, finishing the correction of the focusing roller position.

Technical Field

The invention relates to the technical field of oriented silicon steel laser scoring, in particular to a device and a method for quickly correcting the height position of an oriented silicon steel laser scoring focusing roller.

Background

A schematic of laser scoring is shown in fig. 1. In the laser score scanning box 100, the incident laser 200 is focused by the focusing mirror 400 and then irradiated onto the strip 500 jacked up by the focusing roller 400, and stabilizing rollers 600 are further provided on both sides of the focusing roller for tightening the strip. Under normal conditions, the angle of the incident laser beam 200 and the position of the focusing mirror 300 are not changed, once the focal length of the focusing mirror 300 is selected, the actual focal position is not changed, the focusing roller 400 is lifted up and down, and the strip steel 500 is pushed to the focal position for scoring. The upper surface of the strip steel 500 at the topmost end of the focusing roller 400 is the focused laser focal position. The height position of the focusing roller 400 is adjusted by a lead screw connected with a motor, and stroke detection and control are performed by an encoder. Whether the strip steel is in the focus position or not is very critical to the scoring effect, so the precision and the accuracy of the height position of the focusing roller are very important. The following problems are encountered in actual production:

(1) the precision of the encoder is easily affected by temperature, and the encoder is difficult to perceive after precision drift, particularly in a finishing unit or laser scoring equipment with short focal length, every roll of the height of the focusing roller needs to be lifted, and the accumulated error is large.

(2) The encoder is difficult to calibrate after being damaged and replaced. As the precision of the focusing roller usually reaches 0.1mm, the zero position determination after the encoder is replaced is difficult, and time and labor are wasted.

(3) The actual height of the top changes due to wear of the roller surface of the focusing roller, and the top deviates from the focus position. The focusing roller needs to be coated with an inorganic coating on the surface to improve the heat resistance of the roller surface. However, the roller surface is coated or abraded in long-term use, the actual roller diameter of the focusing roller is reduced, and the strip steel deviates from the focus position.

(4) The focusing roller and the scanning box are abnormally relatively displaced, resulting in deviation from the focus. The focusing roller and the scanning box are arranged on two independent frames, and generate certain relative displacement under certain abnormal conditions, and the possibility that the focusing roller deviates from the original position is high, so that the actual focal position is deviated.

This occurs and requires recalibration of the focusing roller position. At present, the principle adopted for confirming the focal position is that the spot size at the focal position is minimum and the energy is most concentrated. The more precise method is to adopt a special energy density detector, place the detector on the focusing roller through the instrument, change the height of the focusing roller continuously, when detecting the energy density is maximum, this position is the focus position; however, this method is generally used only in the installation and debugging stages of the device. The steel mill generally does not have the instrument, if the focus needs to be confirmed in the daily production process, the steel mill needs to be contacted with an equipment manufacturer to implement, the process is long, the implementation difficulty is high, and the cost is high.

In addition, the method is rough, the photosensitive photographic paper is pasted on a focusing roller, the position of the focusing roller is changed, the appearance of light spots is left on the photographic paper after laser is turned on, the size of the light spots is measured, and the position of the focusing roller when the size of the light spots is the smallest is the focus position. However, the sensitive photographic paper needs to be tested and replaced once, so the detection time is long, and is generally not less than 8 h. Meanwhile, in the actual operation process, continuous position conversion of the focusing roller cannot be realized, the edges of light spots on the photosensitive photographic paper are fuzzy, and the measurement accuracy is not enough. Therefore, the superposition of the two factors causes the focal position detected by the method to have low precision, and generally only can reach the 0.5mm level. For the solid laser adopted at present, the laser spot waist length is small, and the precision is not satisfactory.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of low precision and accuracy of the height position of the focusing roller in the prior art, the invention aims to provide a quick and easy-to-operate device and a quick and easy-to-operate method for correcting the position of the oriented silicon steel laser nicking focusing roller.

(II) technical scheme

A laser nicking focusing roller height position rapid correction device comprises a positioning ejector rod device, wherein the positioning ejector rod device is arranged on a scanning box; the positioning ejector rod device comprises an ejector rod, a base, an ejector rod bottom flat plate, a tray and a tightening positioning nut, wherein the base is fixed on the scanning box above the focusing roller, a hole in the base is in clearance fit with the ejector rod, and a locking knob is arranged on the base and used for fixing the ejector rod; the upper end of the ejector rod is provided with a pointer, the tip of the pointer is provided with a scale, and the scale is provided with a magnifying lens capable of moving up and down; the lower end of the ejector rod is provided with an ejector rod bottom flat plate, and the middle of the bottom of the ejector rod bottom flat plate is marked with a marking line or a slot; tray and base swing joint and fixed through screwing up set nut, the tray can be rotatory in the horizontal direction, and when the ejector pin did not use, the ejector pin rose and fixed with the locking knob, and the tray is rotatory to the ejector pin below to screw up set nut, prevent that the tray from rotating.

According to an embodiment of the invention, the length of the ejector rod is determined according to the distance between the installation position and the focusing roller at the focal position, and a certain safety length is reserved.

According to one embodiment of the invention, the fit clearance between the base and the ejector rod and the minimum scale of the scale are not more than the requirement on the height position precision of the focusing roller; the thickness of the pointer at the tip end is smaller than the minimum scale of the scale.

According to an embodiment of the invention, the fit clearance between the base and the ejector rod is 0.05-0.10 mm, the minimum scale of the scale is 0.1mm, and the tip of the pointer is 0.01-0.04 mm.

According to an embodiment of the present invention, the magnifying lens magnification is greater than or equal to 10 times.

According to an embodiment of the invention, the bottom surface of the ejector pin bottom plate is flat and kept horizontal, and the bottom surface and the side surface of the ejector pin bottom plate are marked with a scribing line or a grooving.

According to an embodiment of the present invention, the length and width of the top bar bottom plate and the top bar bottom plate slot are: the length and width dimension is that the length L is more than or equal to 100mm, the width D is more than or equal to 50mm, and the length L is along the length direction of the focusing roller.

According to an embodiment of the invention, the ejector pin is triangular or rectangular.

According to an embodiment of the invention, the ejector rod, the base, the ejector rod bottom flat plate, the pointer, the scale and the screwing positioning nut are made of stainless steel or materials plated with anti-rust coatings.

According to an embodiment of the invention, the bottom of the tray should be higher than the top elevation of the focusing roller at the upper limit.

According to an embodiment of the invention, a certain safety distance d is kept between the bottom of the tray and the upper limit position of the focusing roller, and the safety distance d is larger than or equal to 50 mm.

According to one embodiment of the invention, the positioning ejector rod device is installed after the equipment is debugged or the position accuracy of the focusing roller is determined, and the focusing roller is a brand new roller; when the pointer is on the scale of 0, the flat plate at the bottom of the ejector rod is just contacted with the focusing roller at the focus position, and the marking or slotting mark is completely overlapped with the top of the focusing roller.

A method for quickly correcting the height position of a laser scoring focusing roller comprises the following steps:

s1, raising the focusing roller to the focus position, locking the focusing roller to stop operation and not rotating;

s2, opening the tray, opening the locking knob, and naturally descending the ejector rod under the action of self gravity until the bottom flat plate is contacted with the focusing roller;

s3, adjusting levelness of the focusing roller:

s3.1, checking the contact condition of the axial top of the focusing roller and the bottom flat plate, if the focusing roller is completely attached, the levelness is normal, otherwise, the adjustment is needed;

s3.2, if the axial top of the focusing roller is not completely contacted with the bottom flat plate, adjusting the non-contacted side shaft head of the focusing roller by adopting a gasket or a positioning nut until the axial direction of the focusing roller is completely contacted with the bottom flat plate;

s4, adjusting the verticality of the focusing roller:

s4.1, marking or slotting the center of the bottom flat plate;

s4.2, checking the contact condition of the bottom flat plate mark or the groove and the axial top of the focusing roller;

s4.3, if the bottom flat plate mark or the groove is completely coincided with the axial top of the focusing roller, the verticality of the focusing roller is normal, otherwise, the shaft heads on the two sides of the focusing roller are adjusted until the bottom flat plate mark or the groove is completely coincided with the axial top of the focusing roller;

s5, adjusting the height and the position of the focusing roller:

s5.1, reading scales of a pointer on a scale;

s5.2, if the indication scale is 0, the operation is normal, otherwise, the operation needs to be adjusted, and the adjusting method comprises the following steps: the height of the focusing roller is increased or decreased until the pointer is at the 0 scale position of the scale, and then the encoder is corrected;

and S6, finishing the correction of the focusing roller position.

(III) advantageous effects

By adopting the technical scheme, the device and the method for quickly correcting the height position of the laser scoring focusing roller detect and amplify the displacement amount of the focusing roller in a mechanical mode and are matched with the ejector rod device with the scale display, so that the position of the focusing roller is quickly corrected, the process monitoring of the position of a focusing point is facilitated, and the scoring effect is improved; the invention can confirm the position state of the focusing roller within 10 minutes, greatly shorten the confirmation time, and has simple implementation and low cost; a mechanical detection mode is adopted, so that the zero drift problem is avoided, and the detection is accurate; the method has good application effect in the oriented silicon steel laser scoring machine set, and effectively solves the problem of score improvement rate reduction caused by inaccurate focal position; the correction device and the method are simple and practical, are easy to copy, and have better popularization and application prospects.

Drawings

In the present invention, like reference numerals refer to like features throughout, wherein:

FIG. 1 is a schematic view of laser scoring;

FIG. 2 is a schematic view of the arrangement of the positioning rod ejection device;

FIG. 3 is a schematic view of the working position of the positioning rod ejection device;

FIG. 4 is a schematic view of a bottom plate of the carrier rod;

FIG. 5 is a schematic view of a non-working position of the positioning rod-pushing device;

FIG. 6 is a flowchart of a method for fast focusing roller position calibration.

Description of reference numerals:

100. a scanning box; 200. a laser beam; 300. a focusing mirror; 400. a focusing roller; 500. strip steel; 600. a stabilizing roller; 700. positioning the ejector rod device; 701. a top rod; 702. a pointer; 703. a scale; 704. a magnifying glass; 705. a base; 706. locking the knob; 707. a bottom plate of the ejector rod; 708. a tray; 709. tray set nut.

Detailed Description

The technical scheme of the invention is further explained by combining the drawings and the embodiment.

Referring to fig. 2, the device for quickly correcting the height position of a laser scoring focusing roller comprises a positioning mandril device 700, wherein the positioning mandril device 700 is arranged on a scanning box 100 to ensure that the relative position of the correcting device and the actual focal point of laser keeps unchanged.

Referring to fig. 3, the positioning jack device 700 includes a jack 701 having a pointer 702 and a bottom plate 707, a scale 703 having a magnifying glass 704, a fixed base 705, and an auxiliary tray 708. The base 705 is fixed on the scanning box 100 above the focusing roller 400, and a hole in the base 705 is in clearance fit with the top rod 701 to realize the up-and-down movement of the top rod without shaking. A threaded locking knob 706 is provided on the base 705 for securing the stem 701. The upper end of the ejector rod 701 is provided with a pointer 702, the tip of the pointer 702 is provided with a scale 703, a positive scale is arranged above 0 scale of the scale 703, and a negative scale is arranged below 0 scale. The scale 703 is provided with a magnifying glass 704 which can move up and down and has enough magnification to facilitate reading of people. The lower end of the ejector rod 701 is provided with an ejector rod bottom flat plate 707, and the middle of the bottom of the ejector rod bottom flat plate 707 is marked with a marking line or a groove, as shown in fig. 4, if the groove is formed, the width of the groove is 1mm, and the depth of the groove is more than 0.5 mm. The tray 708 is movably connected with the base 705 and fixed by tightening the positioning nut 709, and the tray 708 can rotate in the horizontal direction to prevent the equipment damage accident caused by the contact of the ejector rod falling off and the focusing roller when the ejector rod is in the off-line position. When the top bar 701 is not in use, the top bar 701 is raised and secured with the locking knob 706, the tray 708 is rotated under the top bar 701, and the set nut 709 is tightened to prevent the tray 708 from rotating, as shown in FIG. 5. The height position of the tray 708 can be adjusted by the positioning nut 709 to ensure that the tray 708 keeps a certain safe distance d from the upper limit of the focusing roller, preferably, d is greater than or equal to 50 mm.

The length of the ejector rod 701 is determined according to the distance between the installation position and the focusing roller at the focal position, and a certain safety length is reserved.

The fit clearance between the base 705 and the ejector rod 701 and the minimum scale of the scale 703 are not more than the requirement on the height position precision of the focusing roller; the thickness of the pointer 702 at the tip should be less than the minimum scale of the scale. The precision of the height position of the current focusing roller can reach 0.1mm, so that the matching clearance between the base 705 and the ejector rod 701 is set to be 0.05-0.10 mm, the minimum scale of the scale is 0.1mm, the pointer tip is 0.01-0.04 mm, and the pointer tip is close to the scale of the scale as much as possible so as to reduce the reading error.

The magnifying lens magnification is more than or equal to 10 times, or a shooting device with an image/picture magnifying function is adopted to replace the magnifying lens.

The bottom surface of the top bar bottom plate 707 should be flat and level. The bottom and side surfaces of the lift pin bottom plate 707 are marked with scribe lines or grooves. The score line or notch coincides with the topmost end of the roller surface of the focusing roller when the focusing roller is in the focal position. If the top end of the focusing roller is not coincident with the mark after running for a period of time, the focusing roller and the scanning box are relatively displaced, and the position of the focusing roller can be adjusted according to the displacement. To ensure that this function is more effective, the length and width dimensions of the bottom plate of the top rod are preferably: the length L is more than or equal to 100mm, and the width D is more than or equal to 50mm, wherein the length L is along the length direction of the focusing roller.

The flat plate at the bottom of the ejector rod is marked, and in order to prevent the flat plate from rotating in the horizontal direction to cause marking displacement, the ejector rod is not cylindrical, and can be triangular or rectangular.

The bottom of the tray 708 should be higher than the top elevation of the focusing roller when the upper limit is made, so as to ensure the safety of the equipment.

Except the tray, other parts should have the ability of rust and corrosion prevention, and can be made of stainless steel or materials plated with rust and corrosion prevention coatings.

The correcting device is installed after the equipment is debugged or the position accuracy of the focusing roller is determined, and the focusing roller is a brand new roller, so that when the pointer is at the scale 0 of the scale, the flat plate at the bottom of the ejector rod is just contacted with the focusing roller at the focus position, and the marking or grooving mark is completely coincided with the top of the focusing roller.

With reference to fig. 6, a method for quickly correcting the height position of a laser scoring focusing roller includes the following steps:

s1, raising the focusing roller to the focus position, locking the focusing roller to stop operation and not rotating;

s2, opening the tray, opening the locking knob, and naturally descending the ejector rod under the action of self gravity until the bottom flat plate is contacted with the focusing roller;

s3, adjusting levelness of the focusing roller:

s3.1, checking the contact condition of the axial top of the focusing roller and the bottom flat plate, if the focusing roller is completely attached, the levelness is normal, otherwise, the adjustment is needed;

s3.2, if the axial top of the focusing roller is not completely contacted with the bottom flat plate, adjusting the non-contacted side shaft head of the focusing roller by adopting a gasket or a positioning nut until the axial direction of the focusing roller is completely contacted with the bottom flat plate;

s4, adjusting the verticality of the focusing roller:

s4.1, marking or slotting the center of the bottom flat plate;

s4.2, checking the contact condition of the bottom flat plate mark or the groove and the axial top of the focusing roller;

s4.3, if the bottom flat plate mark or the groove is completely coincided with the axial top of the focusing roller, the verticality of the focusing roller is normal, otherwise, the shaft heads on the two sides of the focusing roller are adjusted until the bottom flat plate mark or the groove is completely coincided with the axial top of the focusing roller;

s5, adjusting the height and the position of the focusing roller:

s5.1, reading scales of a pointer on a scale;

s5.2, if the indication scale is 0, the operation is normal, otherwise, the operation needs to be adjusted, and the adjusting method comprises the following steps: the height of the focusing roller is increased or decreased until the pointer is at the 0 scale position of the scale, and then the encoder is corrected;

and S6, finishing the correction of the focusing roller position.

In summary, by adopting the technical scheme of the invention, the device and the method for quickly correcting the height position of the laser scoring focusing roller in the embodiment of the invention detect and display the displacement of the focusing roller in an amplifying way in a mechanical way, and are matched with the ejector rod device with scale display, so that the position of the focusing roller is quickly corrected, the process monitoring of the position of the focusing point is facilitated, and the scoring effect is improved; the invention can confirm the position state of the focusing roller within 10 minutes, greatly shorten the confirmation time, and has simple implementation and low cost; a mechanical detection mode is adopted, so that the zero drift problem is avoided, and the detection is accurate; the laser scoring machine set has good application effect in the oriented silicon steel, and effectively solves the problem of score improvement rate reduction caused by inaccurate focal position. As an important monitoring means for the process and the product quality, the correcting device and the correcting method are simple and practical, are easy to copy and have better popularization and application prospects.