JP7385905B2 - How to align the caliber center of the roll caliber and the guide center of the roller guide - Google Patents

Description

The present invention relates to a method for aligning a caliber center of a roll caliber formed on a rolling roll and a guide center of a roller guide.

When hot or cold rolling a rolled material, the caliber center of the roll caliber (roll groove) processed into the rolling roll and the guide center of the guidance device (roller guide) used to guide the rolled material are separated. It is necessary to align (match). Poor positioning (matching) accuracy will result in poor dimensional accuracy of rolled products and wear and tear on guide parts (rollers, roller pins, bearings, etc.).
Conventionally, the caliber center of the roll caliber and the guide center of the roller guide were matched visually by an operator, but this required skill and the accuracy of the match was not always sufficient.
For this reason, a device for detecting misalignment between a roll caliber and a guide roller has been proposed as disclosed in Japanese Utility Model Application Publication No. 59-114216. Even if this detection device detects misalignment, it does not correct this misalignment.
Therefore, a method has been proposed in which the center of the entrance guide is aligned with the caliber of the mill roll using a centering jig as described in, for example, Japanese Utility Model Application Publication No. 62-15806. This conventional example uses a caliber gauge with a handle that is the same shape as the caliber of the lower roll of the round steel rolling roll and has a notch at the caliber core position, and a constant thickness with a tip at a height from the rear seating surface to the notch of the caliber gauge. Center the entrance guide with respect to the caliber using the caliber centering device, and then install the entrance guide.

Utility Model Publication No. 59-114216 Utility Model Publication No. 62-15806

As disclosed in Japanese Utility Model Application Publication No. 62-15806, which is a conventional example, the method of centering the entrance guide with respect to the caliber allows for more accurate positioning compared to visual inspection, but the caliber gauge Gauge plates have limitations in being able to accommodate the wide variety of length and depth dimensions of roll calibers, and in order to expand the range of application, it is necessary to prepare gauge plates for a wide variety of caliber gauges. It appears to be. As described above, it is expected that the method shown in the above-mentioned conventional example will not be applicable to any model of roll caliber and entrance guide to be aligned.
An object of the present invention is to quickly and accurately align the caliber center of a roll caliber and the guide center of a roller guide.

The first feature of the present invention is that a measuring device is attached to the roller guide, and this measuring device is used to align the caliber center of the roll caliber formed on the rolling roll with the guide center of the roller guide. There is a particular thing.
The measuring device is composed of a measuring sensor that serves as a measuring device and emits a light beam , a mounting means that holds the measuring sensor, and a gauge that serves as a measuring marker that receives the light beam that is an output from the measuring sensor. .
the measurement sensor is mounted above the roller guide through the mounting means, the gauge is mounted on the roller guide, and the center of the gauge body is placed opposite the guide center, so that the gauge serves as a measurement marker;
After installation, the light beam for measurement is directed from the sensor body of the measurement sensor toward the sensor center corresponding to the center of the sensor body, then toward the caliber center, and then toward the guide center. death,
After irradiation, the measurement sensor measures the positional deviation m between the two centers, which is the distance from the sensor center of the measurement sensor to the caliber center of the roll caliber, and the positional deviation n , which is the distance from the sensor center to the guide center. The above-mentioned positional deviations m and n, which are measured values, are displayed on the display section of the sensor body, and then the difference e between both positional deviations m and n measured by the measurement sensor is calculated, and after the calculation, , the roller guide is moved in the width direction of the rolling roll by the difference e , and the measurement dimension of the measurement sensor that changes with the movement is displayed on the display section of the sensor body of the measurement sensor as a measurement value scale. , and the movement of the roller guide is stopped when this scale reaches a value corresponding to the difference e .
The second feature of the present invention is based on the first feature, and the mounting means includes a mounting stand, and the mounting stand includes a main stand part that is detachable on the roller guide, and a main stand part that is detachable on the roller guide. and an upper holding part provided at the upper end of the part, and this upper holding part holds the measurement sensor.
A third feature of the present invention is based on the first or second feature, in that the measurement mark is comprised of a gauge, and the gauge body of the gauge is supported by a gauge pedestal mounted on a roller guide. It is in.

According to the present invention, the alignment between the caliber center of the roll caliber and the guide center of the roller guide can be performed quickly and with high precision without visual inspection, and the alignment does not require skill, and the rolled product can be easily aligned. Dimensional accuracy can be improved, and wear and damage of guide parts such as guide rollers can be suppressed.

FIG. 3 is a plan view showing an embodiment of a method for aligning the caliber center of the roll caliber and the guide center of the roller guide according to the present invention, and at the time of starting alignment of the roller guide with respect to the roll caliber. FIG. 3 is a front view showing an embodiment of a method for aligning the caliber center of the roll caliber and the guide center of the roller guide according to the present invention, and at the time of starting alignment of the roller guide with respect to the roll caliber. FIG. 2 is an explanatory diagram showing, in an enlarged manner, the positional deviation between the sensor center and the caliber center, and the positional deviation between the sensor center and the guide center. FIG. 2 is a plan view showing a state in which the caliber center of the roll caliber and the guide center of the roller guide are aligned by moving the roller guide laterally from the starting state of FIG. 1; FIG. 2 is a diagram showing a measurement sensor of the measurement device and a mounting stand for holding it in use when implementing the positioning method shown in FIG. 1, in which (a) is an enlarged front view and (b) is an enlarged front view. It is an enlarged front view showing the upper part of the mounting stand in an upright state. FIG. 2 is a diagram showing a measurement sensor of the measurement device and a mounting stand for holding it in use when performing the alignment method shown in FIG. 1, in which (a) is an enlarged side view and (b) is an enlarged side view. FIG. 7 is an enlarged side view showing the vertical state of the upper part of the mounting stand. FIG. 2 is an enlarged side view showing a disassembled state of the gauge of the measuring device used when implementing the positioning method shown in FIG. 1, and showing the state immediately before inserting the gauge body into the gauge holder. It is. FIG. 2 is an enlarged front view showing the gauge holder of the gauge of the measuring device in use when implementing the positioning method shown in FIG. 1;

Before explaining the embodiment of the method of aligning the caliber center of the roll caliber and the guide center of the roller guide according to the present invention, we will mainly explain the measuring device 1 used in implementing this alignment method in FIGS. This will be explained with reference to FIG.
The measuring device 1 shown in FIGS. 5 and 6 includes a measuring device 2, a mounting stand 3 that holds the measuring device and serves as a mounting means for mounting it on the roller guide G (FIG. 2), and a and a gauge 4 that receives the output. The gauge 4 is also used by being attached to the roller guide G as described later.

As for the measuring device 2, in the example shown in FIG. 5, a measuring sensor that emits a light beam is used. The sensor body 21 of the measurement sensor 2 is held from the back side (left side in FIG. 5) by a groove-shaped sensor holder 22 via its bent side, and is fixed at the four corners with screws 22a as shown in FIG. . The sensor holder 22 has a bearing part 23 protruding from its back surface toward the upper holding part 32 of the mounting stand 3. The sensor holder 22 is provided with a protruding bearing portion 23 as shown in FIG. 5(b). The sensor holder 22 is attached to the upper holding part 32 of the mounting stand 3 so as to be able to swing at a predetermined angle, for example, +/-10 degrees, about the fulcrum pin 5 which passes through the bearing part 23 in the left-right direction in FIG. 6(b). attached. The bearing part 23 is inserted into the upper holding part 32 and is held between a push bolt 34 and a spring pressure adjustment bolt 35. A spring 36 is wound around the spring pressure adjustment bolt 35, and the strength of the spring is controlled by operating the spring pressure adjustment bolt.

As shown in FIGS. 5(a) and 6(a), the mounting stand 3 is composed of a main stand portion 31 serving as a main part and an upper holding portion 32 bearing the measurement sensor 2. The mounting stand 3 is integrated into a crank shape with a main stand part 31, an upper holding part 32, and a connecting plate 37 interposed therebetween, as shown in FIG. 6(A).
The main stand portion 31 of the mounting stand 3 is removable on the roller guide G (FIG. 2). As a means for making this attachment and detachment possible, a magnet stand 6 is used in the example shown in FIG. 6(A). The magnet stand 6 can be stored in a magnet holder 33 provided at the bottom of the main stand section 31, and is fixed in advance with screws 34 during use.
Since the upper holding part 32 provided at the upper end of the mounting stand 3 is tilted counterclockwise in FIG. It is slanted. The main stand portion 31 and upper holding portion 32 of the mounting stand 3 are reinforced by reinforcing plates 31a and 32a.

The gauge 4 will be explained mainly with reference to FIGS. 7 and 8.
The gauge 4 is a means for receiving an output, such as a light beam, emitted from the measurement sensor 2, and is also a measurement marker installed corresponding to the guide center GL of the roller guide G (see FIGS. 1 and 4).
The gauge 4 consists of a gauge body 41 and a gauge pedestal 42 that supports the gauge body 41. As shown in FIG. 7, the gauge main body 41 is formed into a substantially Y-shape, and the upper side of the main body is a groove-shaped frame 41a that receives the light beam from the sensor main body 21 (FIG. 2) of the measurement sensor 2, and the lower side of the main body is formed into the groove. It consists of a support piece 41b that hangs down from the center bottom of the frame and is supported as a gauge holder 42. 41b1 is a fixing hole opened in the support piece 41b.
A receiving groove 42a for supporting the support piece 41b is provided on the side surface (left side surface in FIG. 8) of the gauge holder 42. The support piece 41b is fixed to the gauge holder 42 by a fixing bolt 43 passing through the mounting hole 42b. The support piece 41b is removably inserted into the receiving groove 42a. In the example shown in FIG. 8, the angle of inclination of the receiving groove 42a is set so that it is inclined upward to the right when the gauge main body 41 is inserted. This inclination angle is along the sensor main body 21 and sensor holder 22 shown in FIG.

1 to 3, a method of aligning (aligning) the caliber center CL of the roll caliber RC and the guide center GL of the roller guide G provided on the rolling roll R of a rolling mill will be described.
First, as shown in FIGS. 1 and 2, the measuring device 1 is mounted on the roller guide G.
To describe a specific example of attachment, the attachment stand 3 of the measurement sensor 2 is attached onto the roller guide G. At this time, in consideration of ease of attachment and removal, a magnet stand 6 (FIG. 6) is screwed to the bottom of the main stand section 31 and this magnet stand is magnetized on the roller guide G. Then, as shown in FIG. 2, the gauge 4 is mounted on the roller guide G, and the gauge is placed on the guide center GL so as to serve as a measurement mark. That is, the center of the gauge body 41 is made to correspond to the guide center GL, so that the gauge 4 serves as a measurement mark. Thereafter, the sensor body 21 of the measurement sensor 2 is attached to the sensor holder 22. It is permissible that the center of the sensor body 21 (sensor center SL) deviates from the guide center GL by +/- several millimeters. Direct the sensor body 21 toward the center of the rolling roll R (FIG. 2). In this state, as shown in FIG. 3, the sensor body 21 measures the positional deviation m between the caliber center CL and the sensor center SL of the roll caliber RC. Further, the sensor body 21 measures the positional deviation n between the guide center GL and the sensor center SL. At this time, the positional deviations m and n, which are measured values, are displayed on the display section (not shown) of the sensor body 21.
After the display, the difference e between the positional deviation m, which is the measured value of the distance from the sensor center SL to the caliber center CL, and the positional deviation n, which is the measured value of the distance from the sensor center to the guide center GL, is calculated.

As described above, after installing the measuring device 1 shown in FIGS. 1 and 2 on the roller guide G and calculating the difference e, the position of the guide center GL of the roller guide and the caliber center CL of the roll caliber RC is calculated. Since the positions are different from each other, the roller guide is moved manually or by an automatic moving device such as a motor by the above difference (m−n) in the width direction of the rolling roll R (in the direction of the chain arrow in FIG. ) horizontally. By laterally moving the roller guide G by a distance corresponding to (m−n), the guide center GL and the caliber center CL can be aligned as shown in FIG. Since the guide center GL and the caliber center CL match, the lateral movement of the roller guide G is stopped and the positioning work of both centers is completed.
After the measurement, the measuring device 1 is removed from the roller guide G. In this case, since the magnet stand 6 can be magnetically attached to the roller guide G, it becomes easy to attach and detach the measuring device 1 to and from the roller guide.

Although the above example has been described using the measurement sensor 2 as the measuring device of the measuring device 1, the measuring device is not limited to the measuring sensor. The configuration of the gauge 4 is not limited to the above example as long as it serves as a measurement marker.

RC Roll caliber CL Caliber center G Roller guide GL Guide center m, n Positional deviation R Roll roll SL Sensor center 1 Measuring device 2 Measuring sensor (measuring device)
21 Sensor body 22 Sensor holder 3 Mounting stand 31 Main stand part 32 Upper holding part 4 Gauge 41 Gauge body 42 Gauge holder

Claims (3)

A measuring device is installed on the roller guide, and this measuring device is used to align the caliber center of the roll caliber formed on the rolling roll with the guide center of the roller guide,
The measuring device is composed of a measuring sensor that serves as a measuring device and emits a light beam , a mounting means that holds the measuring sensor, and a gauge that serves as a measuring marker that receives the light beam that is the output from the measuring sensor. ,
the measurement sensor is mounted above the roller guide through the mounting means, the gauge is mounted on the roller guide, and the center of the gauge body is placed opposite the guide center, so that the gauge serves as a measurement marker;
After installation, the light beam for measurement is directed from the sensor body of the measurement sensor toward the sensor center corresponding to the center of the sensor body, then toward the caliber center, and then toward the guide center. death,
After irradiation, the measurement sensor measures the positional deviation m between the two centers, which is the distance from the sensor center of the measurement sensor to the caliber center of the roll caliber, and the positional deviation n , which is the distance from the sensor center to the guide center. Measure each,
The positional deviations m and n serving as measurement values are displayed on the display section of the sensor main body,
Then, calculate the difference e between the two positional deviations m and n measured by the measurement sensor ,
After the calculation, the roller guide is moved in the width direction of the rolling roll by the difference e , and the measurement dimension of the measurement sensor that changes with the movement is displayed as a measured value on the display section of the sensor body of the measurement sensor. A method for positioning a caliber center of a roll caliber and a guide center of a roller guide, characterized in that the movement of the roller guide is stopped when the scale reaches a value corresponding to the difference e . . A mounting stand is used as the mounting means. 2. The method of aligning a caliber center of a roll caliber and a guide center of a roller guide according to claim 1, wherein the holding portion holds a measurement sensor. The roll according to claim 1 or claim 2, wherein the measurement mark comprises a gauge, and the gauge comprises a gauge body and a gauge pedestal mounted on a roller guide and supporting the gauge body. How to align the caliber center of the caliber and the guide center of the roller guide.

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