JP7380611B2 - Rolling mill spindle position adjustment system and position adjustment method - Google Patents

Description

The present invention relates to a position adjustment system and method for a spindle that transmits the driving force of a drive device (for example, a main motor) to the rolls of a rolling mill.

When replacing the rolls of a rolling mill, when connecting the spindle coupling 6 and roll neck 7 shown in FIG. is important. In order to ensure these precisions, conventionally, the thicknesses of the liners of both the spindle carrier 10 and the spindle rest 100 have been changed to adjust the levels of the spindles 1A and 1B.

As shown in FIGS. 8 and 9, the spindle carrier 10 includes spindle shaft supports 11A and 11B that pivotally support the spindle bodies 2 of the upper and lower spindles 1A and 1B such that they can rise and fall, and the piston rods 19 of the hydraulic cylinders 18 and 33. , 34, the spindle shaft supports 11A and 11B are raised and lowered via the swing lever 14 and the swing lever 27, respectively, and the level of the spindle is adjusted. A liner 150 is provided between the lower surfaces of both sides of the spindle shaft support 11A and the inner ends of the left and right swing levers 14, and between the lower center of the spindle shaft support 11B and the inner end of the swing lever 27. A liner 150 is installed between them, similar to the upper part.

As shown in FIGS. 8 and 10, the spindle rest 100 includes a rest frame 152 that supports the spindle couplings 6 of the upper and lower spindles 1A and 1B in a vertically movable manner. The spindle coupling 6 is raised and lowered by rest arms 110R, 110L and rest arms 120R, 120L provided on both sides of the upper inner surface and lower inner surface of the shaft 152, respectively, to adjust the level of the spindle. A liner 130 that contacts the spindle coupling 6 is attached to the rest arms 110R, 110L and the rest arms 120R, 120L.

Conventional spindle level adjustment was specifically performed as follows.
A: Level adjustment of the spindle using the spindle carrier 10 (A1) First, the spindle shaft supports 11A and 11B are raised using the hydraulic cylinders 18 and 33, and the level (axis center position) is adjusted manually using a metal ruler or the like. Measure.
(A2) After the measurement, the spindle shaft supports 11A and 11B are lowered by the hydraulic cylinders 18 and 23, and the hydraulic pressure and power supply are double-cut.
(A3) Next, the thickness of the liner 150 is changed or replaced according to the measured level value.
(A4) After that, cancel the double cut of hydraulic pressure and power supply, raise the spindle shaft supports 11A and 11B again with the hydraulic cylinders 18 and 23, and measure their level (shaft center position) in the same way as A1. .
If this measured level value is normal (within an allowable value), the level adjustment of the spindle carrier 10 is completed, whereas if it is abnormal, the above operations A2 to A4 are repeated on the spindle carrier.
B: Spindle level adjustment using the spindle rest 100 The rest frame 152 is raised and lowered using the hydraulic cylinder 153 in the same manner as in A above, and the thickness of the liner 130 is changed according to the measured level value (axis center position) to adjust the spindle level. I do.

However, in such conventional spindle level adjustment, the thickness of the liner is repeatedly changed until the two measured level values A and B become normal, so there is a drawback that the level adjustment requires a long time. Another disadvantage is that a large number of spare liners of different thicknesses must be kept.

As a device that solves these drawbacks and adjusts the level of the spindle without changing the thickness of the liner, for example, Patent Document 1 discloses a spindle support member 11A of the spindle carrier 10 when the spindle reaches a predetermined level. 11B to restrict further rise, thereby positioning the spindle at a predetermined level, and with the spindle shaft supports 11A and 11B in contact with the corresponding contact member, the contact member is moved to the contact position. A level adjustment device that can adjust the level is disclosed.

Further, Patent Document 2 discloses a spindle level adjustment device and a level adjustment method that can perform highly accurate spindle level adjustment in a short time with simple operations. Specifically, it includes a rest frame 152 (FIGS. 1 and 2) that supports the upper and lower spindles 1A and 1B, which transmit power from the drive source to the rolls 80A and 80B, in a vertically movable manner. By providing rest arms 110R, L, 120R, and L for receiving the spindle coupling 6 of the upper and lower spindles and both lower sides of the universal joint 3 on both sides of the inner surface, the upper and lower spindles 1A can be adjusted without using the spindle carrier 10 for level adjustment. , 1B can be adjusted in vertical and horizontal positions and inclinations.

Japanese Patent Application Publication No. 09-66307 Japanese Patent Application Publication No. 2001-300612

However, the above conventional technology has the following problems that still need to be solved.
The spindle level adjustment device described in Patent Document 1 has a problem in that it is difficult to adjust the level because it performs level adjustment at two locations, the spindle carrier 10 and the spindle rest 100, and therefore it takes a long time to adjust the level. was there.

In the spindle level adjustment device and method described in Patent Document 2, there is a problem that it is difficult to accurately measure the angle and position of the roll connection part of the spindle, which is necessary to determine the required adjustment amount. there were. Further, there is a problem in that it becomes difficult to match the reassembled positions of the rolls and the spindle due to a decrease in the accuracy of the stop positions when the rolls 80A and 80B on the rolling mill side are reassembled.

The present invention has been made to advantageously solve the above-mentioned problems, and an object of the present invention is to provide a rolling mill spindle position adjustment system and a position adjustment method that can prevent poor connection with the spindle when changing rolls. do.

A rolling mill spindle position adjustment system according to the present invention developed in order to solve the above problems and realize the above objects includes a position coordinate measuring means for measuring position coordinates including the roll side end face and outer circumference of the spindle, and a rolling mill spindle position adjustment system. a spindle position determining means for determining the position and orientation of the spindle using information on the arrangement of the rolling equipment and the shape of the equipment, and the measured position coordinates, and a means for adjusting the position and orientation of the spindle to the determined position and orientation and a spindle position adjustment means.

Regarding the rolling mill spindle position adjustment system according to the present invention,
(a) The position coordinate measuring means selects a reference axis using a part that determines a rearrangement device on the rolling mill roll side;
(b) the position coordinate measuring means is a measuring instrument capable of measuring a three-dimensional shape;
It is thought that this could be a more preferable solution.

The method for adjusting the position of a rolling mill spindle according to the present invention, developed in order to solve the above problems and realize the above object, is a first method for acquiring position coordinates including the roll side end surface and outer circumference of the spindle supported by a spindle rest. step, a spindle rest to set the spindle to a predetermined position and attitude using information on the arrangement of the rolling equipment including the rolling mill and the shape of the equipment obtained in advance, and the spindle position coordinates obtained in the first step. and a third step of changing the liner thickness of the spindle rest that supports the spindle based on the adjustment amount obtained in the second step.

Regarding the method for adjusting the position of a rolling mill spindle according to the present invention,
(c) selecting a reference axis using a part on the rolling mill roll side that determines a rearranging device when acquiring the position coordinates of the spindle;
(d) in obtaining the position coordinates of the spindle, using a measuring instrument capable of measuring a three-dimensional shape;
It is thought that this could be a more preferable solution.

According to the rolling mill spindle position adjustment system according to the present invention, since it includes the spindle position coordinate measuring means, the spindle position determining means, and the spindle position adjusting means, the spindle position adjustment can be carried out with high precision, and the roll It is possible to prevent poor connection with the spindle during rearrangement.

According to the method for adjusting the position of a rolling mill spindle according to the present invention, a first step of acquiring position coordinates including the roll side end surface and outer circumference of the spindle supported by a spindle rest; A second step of calculating the liner thickness adjustment amount of the spindle rest to obtain a predetermined spindle position and attitude using the equipment arrangement and device shape information and the spindle position coordinates obtained in the first step; The third step is to change the liner thickness of the spindle rest that supports the spindle based on the adjustment amount obtained in the second step, so the position of the spindle can be adjusted accurately and the connection with the spindle can be adjusted when changing the rolls. Defects can be prevented.

In addition, by creating a reference axis from the part that determines the reclassification position (up, down, left, right) on the rolling mill roll side and measuring and evaluating the reclassification stop position of the spindle, the accuracy of the reclassification position on the roll side can also be taken into account. This is preferable because the stop position of the spindle can be adjusted.

In addition, if you use a measuring instrument that can measure three-dimensional shapes such as a laser tracker to quantitatively grasp the amount of spindle level adjustment required, there is a risk of readjustment due to poor measurement accuracy of the spindle stop position before adjustment. is preferable because it becomes smaller.

1 is a side view of a spindle level adjustment device used in a rolling mill spindle position adjustment system according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the line Y1-Y1 according to the above embodiment, and is a schematic diagram of the spindle rest. 1 is a block diagram of a rolling mill spindle position adjustment system according to an embodiment of the present invention. FIG. FIG. 3 is a flow diagram of a method for adjusting the position of a rolling mill spindle according to an embodiment of the present invention. FIG. 2 is a reference axis creation procedure diagram illustrating how to implement a method for adjusting the position of a rolling mill spindle according to an embodiment of the present invention. FIG. 3 is a spindle measurement procedure diagram illustrating how to implement the spindle level adjustment method according to the above embodiment. FIG. 3 is a conceptual diagram of measurement results according to the embodiment, in which (a) represents the axis coordinates of the roll-side end surface of the spindle coupling, and (b) represents the core coordinates of the roll-side cross pin. FIG. 2 is a side view showing conventional spindle level adjustment. FIG. 9 is a cross-sectional view taken along the line XX in FIG. 8, and is a schematic diagram of the spindle carrier. FIG. 9 is a cross-sectional view taken along the line Y2-Y2 in FIG. 8, and is a schematic diagram showing a conventional spindle rest.

Embodiments of the present invention will be specifically described below. Note that each drawing is schematic and may differ from the actual drawing. Furthermore, the following embodiments are intended to exemplify devices and methods for embodying the technical idea of the present invention, and the configuration is not limited to the following. That is, the technical idea of the present invention can be modified in various ways within the technical scope described in the claims.

FIG. 3 is a block diagram of a rolling mill spindle position adjustment system S30 according to an embodiment of the invention. The rolling mill spindle position adjustment system S30 of this embodiment includes a spindle position coordinate measuring means S31, a spindle position determining means S33, and a spindle position adjusting means S34.

The spindle position coordinate measuring means S31 is preferably a measuring instrument capable of measuring a three-dimensional shape. Examples include image analysis devices that use laser trackers and cameras that can provide stereoscopic vision. It is preferable that the coordinates to be measured are selected using a position where the reference axis of the orthogonal coordinates determines the rearranging device on the rolling mill roll side. For example, the upper surface of the recombinant rail can be an XY plane, and the Z axis can be perpendicular to the XY plane, passing through the axes of the upper and lower rolls.

The spindle position coordinate measuring means S31 sets the reference axis, and then acquires the position coordinates of the roll side end faces and necessary outer circumferences of the spindles 1A and 1B at the time of roll rearrangement.

The spindle position determining means S33 is, for example, configured with a computer, and is obtained in advance from a database (S32) containing information on the arrangement of rolling equipment, information on the shape of reassembled rolls of the rolling mill, information on the shape of each part of the spindle, It is necessary to communicate with the host computer at any time to obtain necessary information, and to configure the system so that it can do so. The spindle position determining means S33 uses the information on the arrangement of the rolling equipment and the shape of the device including the spindle, and the current spindle position coordinates measured above to determine the spindle position to be adjusted to the target spindle position and coordinates. Determine the amount of change. For example, the amount of change in the thickness of each liner of the spindle rest in order to align the axis position of the roll-side end surface of the spindle with the roll axis is calculated.

The spindle position adjusting means S34 adjusts the position and attitude of the spindle in accordance with the calculated amount of change in the spindle position. 1 and 2 schematically show a spindle rest 100 as an example of the spindle position adjusting means S34.

FIG. 1 is a side view including a partial cross section of a spindle position adjusting means used in an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line Y1-Y1 in FIG. In FIG. 1, reference numerals 1A and 1B indicate upper and lower spindles, and both the upper and lower spindles 1A and 1B include a spindle body 2 and universal joints 3 and 4 provided at both left and right ends of the spindle body 2. The universal joint 4 on the right side in the drawing of the upper and lower spindles 1A and 1B is connected to a pinion stand 5 via flange yokes 40A and 40B. On the other hand, the left universal joint 3 is connected to the roll necks 7 of the upper and lower rolls 80A and 80B via a spindle coupling 6. Power transmitted from a drive source (not shown) to the pinion stand 5 is transmitted to the upper and lower rolls 80A and 80B rotatably supported by the roll chock 8 via the upper and lower spindles 1A and 1B.

In addition, the code|symbol 9 is a housing of a rolling mill. Further, reference numeral 100 is a spindle rest as a spindle position adjusting means, and 10 is a spindle carrier. The spindle carrier 10 may be as shown in FIG. Next, the spindle rest 100 of this embodiment will be explained using FIGS. 1 and 2. The spindle rest 100 of this embodiment is arranged closer to the rolls 80A, 80B than the spindle body 2 where the spindle carrier 10 is arranged, and the rest frame 152 is raised to connect the upper and lower spindle couplings 6A, 6B and the upper and lower universals. It is configured to support both joints 3A and 3B.

The spindle rest 100 includes a U-shaped rest frame 152 and a hydraulic cylinder 153 having a piston rod 154, as shown in FIG. The upper end of the rest frame 152 is connected to the piston rod 154 of the hydraulic cylinder 153 at the position of the spindle couplings 6A, 6B, with the spindle couplings 6A, 6B and the universal joints 3A, 3B inserted therein. The hydraulic cylinder 153 is arranged with a piston rod 154 facing downward, and is configured such that the rest frame 152 moves up and down as the piston rod 154 expands and contracts.

As shown in FIGS. 1 and 2, on both sides of the upper inner surface of the rest frame 152, rest arms 110R and 110L are provided along both lower side surfaces of both the spindle coupling 6A and the universal joint 3A of the upper spindle 1A. Furthermore, rest arms 120R and 120L are provided on both sides of the lower inner surface of the rest frame 152, along both lower side surfaces of both the spindle coupling 6B and the universal joint 3B of the lower spindle 1B. At both ends of the upper rest arms 110R, 110L and the lower rest arms 120R, 120L in the spindle axial direction, there are liners 130 that come into contact with both lower side surfaces of the spindle couplings 6A, 6B, respectively, and the lower parts of the universal joints 3A, 3B. A liner 140 is attached that contacts both sides.

Therefore, in the spindle position adjusting means S34 of this embodiment, the upper and lower rest arms 110R and 110L and the lower rest arm rest arms 120R and 120L provided on the rest frame 152 connect the upper and lower spindles 1A and 1B to the spindle coupling 6A. , 6B and universal joints 3A, 3B are supported via liners 130, 140, respectively, so the vertical and horizontal positions and inclinations of the upper and lower spindles 1A, 1B can be adjusted without using the spindle carrier 10 for level adjustment. It can be regulated.

Further, it is preferable that the spindle rest 100 of this embodiment is provided with a wedge-type spacing adjuster 210 at the lower part of the horizontal beam 156 of the fixed frame 155, as shown in FIGS. 1 and 2.

As shown in FIG. 2, this wedge-type spacing adjuster 210 has an upper limit stopper 200 protruding outward on both sides of the upper outer surface near the connecting portion with the piston rod 154 of the rest frame 152, which is raised to a predetermined level. When this is reached, further rise is restricted and the upper and lower spindles 1A, 1B are positioned at a predetermined level. By turning the handle, the wedge can be moved back and forth in the horizontal direction, and the distance between the lower part of the horizontal beam 156 and the upper limit stopper 200 can be adjusted.

Therefore, by using this wedge type spacing adjuster 210, the rest frame 152 is raised and lowered by the hydraulic cylinder 153, and the spacing is adjusted by turning the handle of the wedge type spacing adjuster 210 according to the level measurement value, and the upper and lower spindles are adjusted. Levels of 1A and 1B can be easily adjusted.

Next, an example of a method for adjusting the position of a rolling mill spindle using the rolling mill spindle position adjusting system S30 of this embodiment will be described based on the flowchart shown in FIG. 4.

First, in the first step, the position coordinates of the roll-side end faces and necessary outer peripheral parts of the spindles 1A and 1B supported by the spindle rest 100 are acquired. A reference origin and a reference axis are set to specify this position coordinate (S41). FIG. 5 shows a reference axis creation procedure diagram used in this embodiment.

As shown in FIG. 5, the upper surface of the rearrangement rail, which is the contact surface of the roll chock wheel 330, is used as a reference surface. The direction that follows the roll axis (spindle axis) in the reference plane is set as the X-axis, and the reference axis 300 is set in a direction perpendicular to the X-axis, for example, the Y-axis. For example, the Z-axis is set as the reference axis 310 in the left-right direction of the roll change position based on the distribution of the rolling mill accessory liner 340 that restrains the upper and lower roll chocks 8A, 8B in the left-right direction. In FIG. 5, a reference axis 310 is set at the center of the left and right inner sides of the rolling mill accessory liner 340. The reference axis 310 is set to overlap with the respective axes of the upper and lower rolls 80A and 80B. These reference axes 300 and 310 serve as coordinate references created based on the roll side reference. The origin O in the roll axis direction can be set, for example, at the roll side end of the housing 9, and the roll axis direction is set, for example, to the X axis. The reference axes 300 and 310 may be calculated based on equipment layout information and device shape information, which will be described later, or by measuring the necessary parts using a measuring instrument that can measure three-dimensional shapes, which will be described later. You can also set it.

Next, the positions and inclinations of the end faces of the spindle couplings 6A and 6B are measured using a measuring instrument capable of measuring three-dimensional shapes, such as a laser tracker (S42). Figure 6 shows the concept of this measurement. For example, the position coordinates of a plurality of locations on the roll side end surface 350 of the spindle coupling 6 are measured based on the reference axes 300, 310 and the origin O, for example, as XYZ coordinates. Specifically, by bringing the target of the laser tracker into contact with the roll-side end surface of the spindle coupling 6, the position coordinates of the measurement surface 350 can be specified.

Measuring instruments capable of measuring three-dimensional shapes include laser trackers capable of remote measurement and image analysis devices using multiple cameras. In particular, a laser tracker that measures the target with a laser rangefinder is preferable. The target used in the laser tracker is preferably spherical, and the target size is preferably 10 to 100 mm in diameter. Further, the diameter is more preferably 25 to 60 mm, and even more preferably 35 to 43 mm. Note that the target is also called a reflector, and for example, a ball having the above-mentioned diameter is used. Then, by moving the target in contact with the object whose position coordinates are to be measured and irradiating the target with laser light, the laser light reflected from the target follows the optical path and returns to the light emitting position of the laser tracker. Then, the three-dimensional coordinates of the target reflector are measured. The spindle coupling 6 has an advantage in ease of measurement because it is difficult to connect with peripheral equipment. The distance accuracy is also preferably about 0.07 mm/10 m.

As a second step, the spindle is moved to a predetermined spindle position and posture using information on the arrangement of rolling equipment including the rolling mill and the shape of the equipment obtained in advance and the spindle position coordinates obtained in the first step. Calculate the liner thickness adjustment amount for the rest. For example, the coordinates of the axis 360 of the end face of the spindle coupling 6 can be calculated from the measurement results of the outer circumference of the spindle coupling 6 (S43). Furthermore, the core coordinates 370 of the cross pin located between the spindle coupling 6 and the universal joint 3 can be calculated using the known shape information of each part of the spindle. For example, a three-dimensional CAD (computer aided design) system can be used to calculate the axis coordinates.

Furthermore, since the core coordinates 390 of the cross pin on the pinion stand 5 side are normally fixed and do not change, known coordinates are used. By combining this core coordinate 390 with the calculated core coordinate 370 of the roll side cross pin, the core coordinates 381 and 382 of the spindle rest support position of the universal joint 3 can be calculated from the known shape information.

Then, it is determined whether the amount of deviation between the current position of the core coordinates 381, 382 of the spindle rest support position and the target position is within a tolerance range (S44). If this amount of deviation is within the allowable value, the process moves on to assembling the roll and spindle (S47). If the amount of deviation exceeds the allowable value, the required thickness of each liner 130, 140 of the spindle rest is calculated (S45). This required thickness may be an adjustment amount for the currently used liner thickness. For example, in a sliding design that provides a Shore hardness difference of 10±5 at the mating part between the roll (low hardness side) and spindle (high hardness side), the production capacity is 15,000 tons/day. In the case of a finishing rolling mill for hot rolling equipment, the above tolerances are approximately ±3 mm for the core coordinate 360 in the direction of the reference axis 300, approximately -5 ± 3 mm for the core coordinate 360 relative to the roll in the direction of the reference axis 310, The center coordinate 370 can be about ±3 mm with respect to the roll. Within this range, the rolls can be automatically changed without damaging the equipment. Further, when the center value of the Shore hardness difference is smaller than 10, it is preferable that the tolerance value is smaller than ±3 mm.

As a third step, the thickness of each liner 130, 140 of spindle rest 100 is adjusted based on the obtained required thickness of each liner 130, 140 (S46). At this time, in the rolling mill spindle position adjustment method of this embodiment, the switching valves of the hydraulic circuits of the cylinders 18 and 33 of the spindle carrier 10 shown in FIG. 9 are operated to disable them.

After adjusting the thickness of each liner of the spindle rest, it is also possible to return to the first step of obtaining coordinates of the spindle end face and outer circumference (S42) and repeat the operation.

Finally, the roll and spindle are assembled (S47). That is, the spindle position adjustment is completed, and the spindle coupling 6 and roll neck 7 are connected. When rotating the rolls 80A and 80B to perform rolling, the switching valves of the hydraulic circuits of the cylinders 18 and 33 of the spindle carrier 10 are operated and activated, and the spindle is supported by the spindle shaft supports 11A and 11B of the spindle carrier 10. I try to do that. Therefore, stable rolling is possible.

The spindle position adjustment means of this embodiment lowers the piston rod 154 connected to the rest frame 152 when rolling, so that the spindle rest 100 is out of contact with the spindle coupling 6 and the universal joint 3. It is set as. As described above, in the spindle position adjusting means of this embodiment, the spindle couplings 6A, 6B of the upper and lower spindles 1A, 1B and the lower sides of the universal joints 3A, 3B are installed on both sides of the upper inner surface and on both the lower inner surfaces of the rest frame 152, respectively. Since a receiving rest arm is provided, the level adjustment can be performed at only one place on the spindle rest 100, so it can be easily performed in a short time.

FIGS. 7A and 7B are conceptual diagrams showing the measurement results of each axis position after adjusting the position of the spindle using the above rolling mill spindle position adjustment method. FIG. 7(a) shows the measurement result of the axis position of the roll side end face of the upper and lower spindle couplings 6A, 6B, and FIG. 7(b) shows the result of calculating the center coordinate of the roll side cross pin of the upper and lower spindle couplings 6A, 6B. shows. Both the axis position coordinates 360A, 360B of the roll-side end surfaces of the upper and lower spindle couplings 6A, 6B and the center coordinates 370A, 370B of the roll-side cross pin are on the reference axis 310. In other words, the deviation from the target position is within the allowable value.

In this embodiment, the effects of measurement accuracy errors associated with manual measurement and deterioration of position accuracy due to deformation and wear of equipment for determining the stop position of the roll, which are problems of conventional methods, are minimized. In addition, the amount of adjustment of each liner 130, 140 of the spindle rest required for centering the roll side and the spindle coupling side can be clearly calculated. Therefore, the spindle position adjustment at the time of roll rearrangement can be completed by stopping the line for a short time without repeating the measurement adjustment work.

1A Upper spindle 1B Lower spindle 2 Spindle body 3, 3A, 3B Roll side universal joint 4 Drive side universal joint 5 Pinion stand 6, 6A, 6B Spindle coupling 7, 7A, 7B Roll neck 8, 8A, 8B Roll chock 9 Housing 10 Spindle carriers 40A, 40B Flange yokes 80A, 80B Roll 100 Spindle rests 110R, 110L, 120R, 120L Rest arms 130, 140, 150 Liner 152 Rest frame 155 Fixed frame 156 Fixed frame member 200 Upper limit stopper 210 Wedge type spacing adjuster 300 Recombinant rail top surface level core 310 Roll left and right core 320 Recombinant rail 330 Roll chock wheel 340 Roll chock restraint liner 350 Coupling end face (measurement surface)
360, 360A, 360B Axial core (coupling end face)
370, 370A, 370B Axis core (roll side cross pin part)
381, 382 Axis core (spindle rest support part)
390 Axis core (pinion stand side cross pin part)

Claims (6)

a position coordinate measuring means that is a measuring device that measures position coordinates including the roll side end face and outer circumference of the spindle;
a spindle position determining means that determines the position and orientation of the spindle using information on the arrangement of rolling equipment including the rolling mill and the shape of the equipment, and the measured position coordinates;
a spindle position adjustment means that supports a spindle coupling and a universal joint that are swingably connected by a cross pin in order to adjust the position and attitude of the spindle to a determined position and attitude ;
Here, the attitude of the spindle refers to the axial relationship between the spindle coupling and the universal joint, which are swingably connected by a cross pin, and is a position adjustment system for the rolling mill spindle. 2. The rolling mill spindle position adjustment system according to claim 1, wherein the position coordinate measuring means selects a reference axis using a part of the rolling mill roll that determines a rearrangement device. 3. The rolling mill spindle position adjustment system according to claim 1, wherein the position coordinate measuring means is a measuring instrument capable of measuring a three-dimensional shape. A first step of obtaining position coordinates including the roll side end surface and outer circumference of the spindle supported by the spindle rest using a measuring device ;
The liner thickness of the spindle rest is determined in order to obtain a predetermined spindle position and attitude using information on the arrangement of rolling equipment including the rolling mill and the shape of the equipment obtained in advance, as well as the spindle position coordinates obtained in the first step. a second step of calculating the adjustment amount;
a third step of changing the liner thickness of the spindle rest supporting the spindle coupling and the universal joint, which are swingably connected by the cross pin, based on the adjustment amount obtained in the second step;
has ,
Here, the attitude of the spindle refers to the axial relationship between the spindle coupling and the universal joint, which are swingably connected by a cross pin, and is a method of adjusting the position of the rolling mill spindle. 5. The method for adjusting the position of a rolling mill spindle according to claim 4, wherein when acquiring the position coordinates of the spindle, a reference axis is selected using a part on the rolling mill roll side that determines a rearrangement device. 6. The method for adjusting the position of a rolling mill spindle according to claim 4, wherein a measuring instrument capable of measuring a three-dimensional shape is used to obtain the position coordinates of the spindle.

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