An auxiliary tooling for spatial measurement of a rolling mill and a measurement method

Abstract

The present invention belongs to the technical field of spatial position measurement of hot rolling multi-roll mills, and discloses an auxiliary tooling for spatial measurement of a rolling mill and a measurement method; the auxiliary tooling for spatial measurement of the rolling mill includes: a rolling mill lining plate and a measurement marking block; a measurement point-taking hole is formed in the rolling mill lining plate, and the measurement marking block is embedded in the measurement point-taking hole; wherein, a marking positioning surface and an abutting surface that can abut against the rolling mill housing surface are provided on the measurement marking block. The auxiliary tooling for spatial measurement of the rolling mill and the measurement method provided by the present invention can simplify the complexity of spatial detection operations of the rolling mill housing, and improve the detection efficiency and accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of spatial position measurement of a hot rolling multi-roller rolling mill, and in particular to a rolling mill spatial measurement auxiliary tool and a measurement method. Background Art

[0002] The spatial position accuracy of the finishing mill arch is the core indicator of mill accuracy. It plays an important role in the spatial constraint of the roll position and is an important equipment foundation related to roll crossing, mill stiffness, and roll gap accuracy. As the equipment is running, the lining of the finishing mill arch will wear to varying degrees, resulting in problems such as non-parallelism between the arch faces of the mill and intersection of theoretical axes; for this reason, it is necessary to measure the arch faces of the mill and perform regular maintenance. However, in order to accurately obtain the actual conditions of each arch face, it is often necessary to dismantle the component structures to expose the arch face, which is inconvenient and inefficient; or in order to reduce the complexity of the operation, points are directly taken from the liner for spatial measurement, which is affected by the wear of the liner and results in low spatial station measurement accuracy. Summary of the invention

[0003] The invention provides a rolling mill space measurement auxiliary tool and a measurement method, which solve the technical problems of complex operation, low efficiency and low measurement accuracy of the space position measurement of a hot rolling multi-roller rolling mill in the prior art.

[0004] In order to solve the above technical problems, the present invention provides a rolling mill space measurement auxiliary tool, comprising: a rolling mill liner and a measurement identification block;

[0005] The rolling mill lining plate is provided with a measuring point hole, and the measuring identification block is embedded in the measuring point hole;

[0006] Wherein, the measuring identification block is provided with an identification positioning surface and a butting surface which can be butted against the surface of the rolling mill arch.

[0007] Furthermore, the measuring point hole is a screw hole;

[0008] The measuring identification block is provided with a positioning stud, the end surface of the positioning stud is provided as the top abutment surface, and the positioning stud is detachably screwed into the screw hole.

[0009] Furthermore, the side wall surface of the measurement identification block is configured as a regular polyhedral clamping surface.

[0010] Furthermore, the regular polygonal clamping surface is a regular hexahedral clamping surface.

[0011] Furthermore, there are multiple measuring point holes, and the multiple measuring point holes are arranged at equal intervals.

[0012] Furthermore, the plurality of measurement point holes are arranged in a horizontal and vertical array.

[0013] Furthermore, the end face of the stud is arranged as a conical surface.

[0014] A method for measuring the space of a rolling mill implements space measurement operations by using the auxiliary tooling for measuring the space of the rolling mill described above;

[0015] The space measurement operations include:

[0016] Select the non-loaded surface on the outlet side of the rolling mill support roll housing where the rolling mill liner is installed, fixedly set the measurement identification block on the rolling mill liner, and abut the measurement identification block against the non-loaded surface on the outlet side of the rolling mill support roll housing;

[0017] Obtain the spatial positioning information of the measurement identification block by setting up a station with a laser tracker and tracking, and fit a reference plane based on the spatial positioning information;

[0018] Determine the centering reference plane perpendicular to the horizontal plane based on the reference plane and the laser tracker;

[0019] Perform spatial position measurement on each actual plane of the rolling mill housing by setting up a station with the laser tracker with the centering reference plane as the reference.

[0020] Furthermore, the obtaining the spatial positioning information of the measurement identification block by setting up a station with a laser tracker includes:

[0021] Obtain the spatial positioning information of the measurement identification blocks on the non-loaded surfaces on the outlet sides of the operating side and the drive side housings of the rolling mill support rolls respectively by setting up a station with the laser tracker and tracking.

[0022] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0023] The auxiliary tooling for measuring the space of the rolling mill and the measurement method provided in the embodiments of the present application set up a rolling mill liner with measurement point-taking holes and are equipped with a detachable measurement identification block. Thus, on the basis of being able to undertake the functions of a conventional liner, the measurement identification block can also be installed during maintenance measurement. By abutting against the rolling mill housing, the indirect positioning of the rolling mill housing surface is realized, so that the laser tracker can be set up for measurement without disassembling components such as the housing liner, greatly simplifying the measurement operation and improving the measurement efficiency; on the other hand, by establishing a centering reference plane with the non-loaded surface on the outlet side of the rolling mill support roll housing as the reference plane, the position accuracy of the original housing is retained, the authenticity of the measurement data is ensured, the measurement accuracy is improved, and at the same time, the current perpendicularity of the rolling mill housing is calibrated. Description of the Drawings

[0024] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 It is a schematic structural diagram of a rolling mill housing provided by an embodiment of the present invention;

[0026] Figure 2 It is a schematic layout diagram of a rolling mill liner and a measurement identification block provided by an embodiment of the present invention;

[0027] Figure 3 For Figure 2 It is a schematic structural diagram of the measurement identification block in

[0028] Figure 4 For Figure 3 It is a left view of

[0029] Figure 5 For Figure 1 It is a schematic layout diagram of the centering reference plane of the rolling mill housing in

[0030] Figure 6 For Figure 1 It is a schematic space measurement diagram of each housing surface of the rolling mill housing in Specific embodiments

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of them. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0032] In addition, the present application may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0033] The following describes the present application with reference to the drawings and specific embodiments:

[0034] By providing a rolling mill space measurement auxiliary tooling and a measurement method in the embodiments of the present application, the technical problems in the prior art of complex operation, low efficiency, and low measurement accuracy in the space position measurement of hot rolling multi-roll rolling mills are solved.

[0035] To better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation manners. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations on the technical solution of the present application. Without conflict, the technical features in the embodiments of the present application and the embodiments can be combined with each other.

[0036] See Figure 1 and Figure 2 , this embodiment provides an auxiliary tooling for measuring the space of a rolling mill, which is used in cooperation with a laser tracker to set up stations and track and measure the spatial position, so as to simplify the operation of measuring the spatial position and improve the operation efficiency and accuracy.

[0037] Specifically, the auxiliary tooling for measuring the space of the rolling mill includes: a rolling mill liner 30 and a measurement identification block 40. Moreover, the rolling mill liner 30 can be a liner that matches the rolling mill housing. In order to cooperate with the implementation of space measurement, measurement taking holes can be opened on the rolling mill liner 30, and the measurement identification block 40 can be embedded in the measurement taking holes; that is to say, in the working state of the rolling mill, the rolling mill liner 30 serves as a working component of the rolling mill and is fixed on the rolling mill according to the designed position and installation relationship. When implementing the space measurement of the rolling mill, the measurement identification block 40 is embedded into the measurement taking holes and abuts against the rolling mill housing surface, so that multiple points on the rolling mill housing surface can be indirectly positioned by positioning the measurement identification block 40, thereby positioning the rolling mill housing surface. Correspondingly, the length of the measurement identification block 40 can be set according to the actual situation.

[0038] It is worth noting that the rolling mill liner is installed on the rolling mill as a conventional accessory, so that convenient and efficient positioning and measurement can be achieved without removing the accessory components such as the liner on the rolling mill housing.

[0039] See Figure 2 , Figure 3 and Figure 4 , in order to cooperate with the identification to position the rolling mill housing surface, a marking positioning surface 41 and an abutting surface 43 that can abut against the rolling mill housing surface are provided on the measurement identification block 40.

[0040] Generally speaking, in order to ensure the reliability of the abutting contact, the abutting surface can be set as a conical surface, by reducing the contact surface, avoiding situations such as virtual connection, and ensuring the reliability of the spatial positioning measurement.

[0041] On the other hand, in order to improve the position stability of the measurement identification block 40, the measurement point-taking hole is a threaded hole. Correspondingly, a positioning stud 42 is provided on the measurement identification block 40, so that the positioning stud 42 is detachably screwed into the threaded hole, enabling convenient disassembly and assembly and stably maintaining the position to ensure the reliability of measurement positioning. Correspondingly, the end face of the positioning stud 42 is set as the abutting surface 43.

[0042] In order to facilitate disassembly and assembly, the side wall surface of the measurement identification block 40 is set as a regular polygonal clamping surface, which is convenient for implementing disassembly and assembly operations through clamping tools such as wrenches and is convenient for operation in a small space.

[0043] Generally speaking, the regular polygonal clamping surface can be set as a regular hexagonal clamping surface to facilitate adaptation to ordinary tools; of course, other numbers are not excluded.

[0044] In order to improve the reliability of positioning, the number of the measurement point-taking holes can be set to multiple, and the multiple measurement point-taking holes are arranged at equal intervals, so as to improve the reliability of surface fitting by taking multiple points.

[0045] Furthermore, in order to reduce accidental errors, the multiple measurement point-taking holes can be set as horizontal and vertical array holes.

[0046] This embodiment also provides a method for measuring the space of a rolling mill based on the above auxiliary tooling, and specifically cooperates with a laser tracker to perform space measurement operations.

[0047] See Figure 1 、 Figure 5 and Figure 6 , the space measurement operation includes:

[0048] Select the non-loaded surface on the outlet side of the rolling mill support roll housing where the rolling mill lining plate 30 is installed, fix the measurement identification block to the rolling mill lining plate 30, and abut the measurement identification block 40 against the non-loaded surface on the outlet side of the rolling mill support roll housing;

[0049] Set up and track the laser tracker to obtain the space positioning information of the measurement identification block 40, and fit the reference surface based on the space positioning information;

[0050] Determine the centering reference plane 50 perpendicular to the horizontal plane based on the reference surface and the laser tracker;

[0051] Take the centering reference plane 50 as the reference, and perform space position measurement on each actual plane of the rolling mill housing through the laser tracker set-up to obtain the space position of each actual plane relative to the minute reference plane 50.

[0052] It should be noted that the mill housing includes a drive side housing 10 and an operator side housing 20, and the actual plane includes the planes of the two housings. Taking the drive side housing 10 as an example, the actual plane at least includes: the upper backup roll housing surface 11, the work roll housing surface 12, and the lower backup roll housing surface 13.

[0053] The method for obtaining the spatial positioning information of the measurement identification block by setting up stations and tracking with a laser tracker includes:

[0054] By setting up stations with the laser tracker and respectively tracking to obtain the spatial positioning information of the measurement identification blocks on the non-loaded surfaces of the outlet sides of the operator side and the drive side of the mill backup rolls.

[0055] That is to say, when positioning the reference plane, points are respectively taken and fitted on the non-loaded surfaces of the outlet sides of the operator side and the drive side of the mill backup rolls to obtain two reference planes, and the two reference planes are combined with the centering direction perpendicular to the horizontal plane after translation along their normal directions to fit and obtain the centering reference plane.

[0056] Of course, it is also possible to perform overall fitting on the two housing surfaces to obtain a reference plane.

[0057] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0058] The mill space measurement auxiliary tooling and measurement method provided in the embodiments of the present application set up a mill lining plate provided with measurement point-taking holes and configure a detachable measurement identification block. Thus, on the basis of being able to perform the functions of a conventional lining plate, a measurement identification block can also be installed during maintenance measurement, and the indirect positioning of the mill housing surface can be realized by abutting against the mill housing, so that the laser tracker can set up stations for measurement without disassembling components such as the housing lining plate, greatly simplifying the measurement operation and improving the measurement efficiency; on the other hand, by establishing a centering reference plane with the non-loaded surface of the outlet side of the mill backup roll housing as the reference plane, the position accuracy of the original housing is retained, the authenticity of the measurement data is ensured, the measurement accuracy is improved, and at the same time, the current perpendicularity of the mill housing is calibrated.

[0059] In the present application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0060] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0061] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture. If this specific posture changes, then the directional indication also changes accordingly.

[0062] In the present application, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0063] In addition, in the present application, descriptions such as "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise clearly specifically defined.

[0064] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0065] In addition, the technical solutions between various embodiments can be combined with each other, provided that they can be implemented by those of ordinary skill in the art. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0066] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. An auxiliary tool for spatial measurement of a rolling mill, characterized in that Comprising: A rolling mill liner and a measurement identification block; Measurement taking holes are formed in the rolling mill liner, and the measurement identification block is embedded in the measurement taking holes; Wherein, an identification positioning surface and a abutting surface that can abut against the rolling mill housing surface are provided on the measurement identification block; the measurement taking holes are threaded holes; A positioning stud is provided on the measurement identification block, the end surface of the positioning stud is set as the abutting surface, and the positioning stud is detachably screwed in the threaded hole; The side wall surface of the measurement identification block is set as a regular polyhedron clamping surface.

2. The auxiliary tool for spatial measurement of a rolling mill according to claim 1, characterized in that The regular polyhedron clamping surface is a regular hexagon clamping surface.

3. The auxiliary tool for spatial measurement of a rolling mill according to claim 1, characterized in that The number of the measurement taking holes is multiple, and the multiple measurement taking holes are arranged at equal intervals.

4. The auxiliary tool for spatial measurement of a rolling mill according to claim 1, characterized in that The multiple measurement taking holes are set as horizontal and vertical array holes.

5. The auxiliary tool for spatial measurement of a rolling mill according to claim 1, characterized in that The end surface of the positioning stud is set as a conical surface.

6. A method for spatial measurement of a rolling mill, characterized in that Performing a space measurement operation by using the rolling mill space measurement auxiliary tooling according to any one of claims 1 to 5; The space measurement operation includes: Selecting the non-loaded surface on the outlet side of the rolling mill support roll housing where the rolling mill liner is installed, fixing the measurement identification block to the rolling mill liner, and abutting the measurement identification block against the non-loaded surface on the outlet side of the rolling mill support roll housing; Obtaining the space positioning information of the measurement identification block by setting up a station with a laser tracker and fitting a reference plane based on the space positioning information; Determining a centering reference plane perpendicular to the horizontal plane based on the reference plane and the laser tracker; Performing a space position measurement on each actual plane of the rolling mill housing by setting up a station with the laser tracker with the centering reference plane as a reference.

7. The method for spatial measurement of a rolling mill according to claim 6, characterized in that The obtaining the space positioning information of the measurement identification block by setting up a station with a laser tracker includes: Respectively obtaining the space positioning information of the measurement identification blocks on the non-loaded surfaces on the outlet sides of the operating side and the driving side housings of the rolling mill support rolls by setting up a station with the laser tracker.

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