Fixed-width press machine based on magnetostrictive displacement sensor position control

Abstract

The fixed-width press machine based on magnetostriction displacement sensor position control comprises a plate blank machining channel, a transmission side and an operation side, the transmission side and the operation side are located on the left side and the right side of the plate blank machining channel respectively, the transmission side comprises a transmission side width fixing mechanism, and the operation side comprises an operation side width fixing mechanism and an operation table. A transmission side motor in the transmission side width fixing mechanism drives a transmission side hammer head to hammer the left side of a plate blank in the plate blank machining channel through a transmission side transmission assembly, and an operation side motor in the operation side width fixing mechanism drives an operation side hammer head to hammer the right side of the plate blank in the plate blank machining channel through an operation side transmission assembly. The distance between the transmission side hammer head and the operation side hammer head is obtained through the transmission side magnetostriction displacement sensor and the operation side magnetostriction displacement sensor, the service life is longer, frequent replacement is not needed, and reduction of production efficiency can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of fixed-width presses, and in particular to a fixed-width press based on position control of a magnetostrictive displacement sensor. Background Art

[0002] The fixed width press is a device that controls the hammer head to reciprocate in the vertical direction of the slab and hammer the slab, thereby reducing the width of the slab.

[0003] The fixed-width press includes a transmission side and an operating side respectively located on the left and right sides of the slab, and the transmission side and the operating side each include a motor, a worm gear reducer, a transmission screw and a hammer head, wherein the motor drives the transmission screw to move along its axial direction through the worm gear reducer, and the hammer head is installed on one end of the transmission screw, and the transmission screw can drive the hammer head to move along its axial direction to hammer and reduce the width of the left and right sides of the slab.

[0004] In order to realize the roll gap closed-loop control function of the fixed-width press, the fixed-width press designed by Germany's SMS group uses an absolute multi-turn encoder to detect the number of rotations of the transmission screw, and then calculates the roll gap value of the fixed-width press. The roll gap feedback value is obtained based on the roll gap value to control the motor to realize the roll gap closed-loop control function of the fixed-width press.

[0005] The fixed-width press based on the absolute multi-turn encoder designed by the German SMS company has the following defects in the long-term operation process:

[0006] 1. Absolute multi-turn encoders are generally photoelectric detection encoders. Fixed-width presses often vibrate greatly during the hammering process of the slab. After long-term operation, the photoelectric code disk inside the photoelectric detection encoder will deteriorate due to vibration, shortening its service life;

[0007] 2. Absolute multi-turn encoders often have data anomalies after being damaged. At this time, the absolute position of the absolute multi-turn encoder will change, and the absolute position of the replaced new absolute multi-turn encoder cannot be consistent with the original absolute multi-turn encoder. Therefore, when replacing a new absolute multi-turn encoder, it takes a long time to re-measure the new absolute multi-turn encoder on site multiple times and repeat the calibration. During this period, the hot rolling line is in a shutdown state, resulting in a decrease in production efficiency.

[0008] To sum up, in the actual production process of fixed-width presses, how to solve the problem of short life of absolute multi-turn encoders and long time spent on measurement and calibration after replacement is an urgent problem to be solved in the equipment management of fixed-width presses. Summary of the invention

[0009] In response to the technical problems raised above, a fixed-width press machine based on position control of a magnetostrictive displacement sensor is provided.

[0010] The technical means adopted by the present invention are as follows:

[0011] A fixed width press machine based on position control of a magnetostrictive displacement sensor comprises a slab processing channel through which a slab can pass, and also comprises a transmission side and an operating side, wherein the transmission side and the operating side are respectively located on the left and right sides of the slab processing channel, the transmission side comprises a transmission side fixed width mechanism, and the operating side comprises an operating side fixed width mechanism and an operating table; the transmission side fixed width mechanism comprises a transmission side motor, a transmission side transmission assembly, a transmission side hammer head and a transmission side magnetostrictive displacement sensor; the transmission side motor drives the transmission side hammer head to hammer the left side of the slab in the slab processing channel through the transmission side transmission assembly; the operating side fixed width mechanism comprises an operating side motor, an operating side transmission assembly, an operating side hammer head and An operating side magnetostrictive displacement sensor; the operating side motor drives the operating side hammer to hammer the right side of the slab in the slab processing channel through the operating side transmission component; the transmission side hammer and the operating side hammer are left-right symmetrical about the length direction of the slab processing channel, and the distance between the transmission side hammer and the operating side hammer can be obtained through the transmission side magnetostrictive displacement sensor and the operating side magnetostrictive displacement sensor; the signal output end of the transmission side magnetostrictive displacement sensor and the signal output end of the operating side magnetostrictive displacement sensor are both connected to the signal input end of the operating table, and the signal input end of the transmission side motor and the signal input end of the operating side motor are both connected to the signal output end of the operating table.

[0012] Furthermore, the transmission side transmission assembly includes a transmission side screw mounting sleeve, a transmission side screw, a transmission side worm wheel and a transmission side worm; the transmission side screw mounting sleeve is a cylindrical structure with an axis parallel to the horizontal plane and one end closed and the other end open; one end of the transmission side screw is coaxially mounted in the transmission side screw mounting sleeve through the open end of the transmission side screw mounting sleeve and can move along the axial direction of the transmission side screw mounting sleeve, and the other end of the transmission side screw is located outside the transmission side screw mounting sleeve; the transmission side worm The relative position between the wheel and the transmission side screw mounting sleeve is fixed, the screw hole in the transmission side worm wheel cooperates with the thread outside the transmission side screw; the spiral groove outside the transmission side worm is meshed with the gear teeth outside the transmission side worm wheel; the output shaft of the transmission side motor is coaxially connected with the transmission side worm, and the transmission side hammer is installed on the transmission side screw at one end outside the transmission side screw mounting sleeve; the operating side transmission assembly includes an operating side screw mounting sleeve, an operating side screw, an operating side worm wheel and an operating side worm; The operating side screw mounting sleeve is a tubular structure with an axis parallel to the horizontal plane and one end closed and the other end open; one end of the operating side screw is coaxially mounted in the operating side screw mounting sleeve through the open end of the operating side screw mounting sleeve and can move along the axial direction of the operating side screw mounting sleeve, and the other end of the operating side screw is located outside the operating side screw mounting sleeve; the relative position between the operating side worm wheel and the operating side screw mounting sleeve is fixed, the screw hole in the operating side worm wheel cooperates with the thread outside the operating side screw; the spiral groove outside the operating side worm is meshed with the gear teeth outside the operating side worm wheel; the output shaft of the operating side motor is coaxially connected with the operating side worm, and the operating side hammer is mounted on the operating side screw at one end outside the operating side screw mounting sleeve; the axis of the transmission side screw mounting sleeve and the axis of the operating side screw mounting sleeve are located on the same straight line and are both perpendicular to the length direction of the slab processing channel, and the relative position between the transmission side screw mounting sleeve and the operating side screw mounting sleeve is fixed.

[0013] Furthermore, the transmission side magnetostrictive displacement sensor includes a transmission side waveguide wire, a transmission side magnetic ring and a transmission side electronic warehouse; the transmission side waveguide wire is coaxially fixedly installed in the transmission side screw mounting sleeve, and the transmission side magnetic ring is coaxially fixedly installed on the transmission side screw; the transmission side magnetic ring is coaxially sleeved on the transmission side waveguide wire and can move along the axial direction of the transmission side waveguide wire driven by the transmission side screw; the transmission side electronic warehouse can both apply a transmission side query pulse to the transmission side waveguide wire and receive a transmission side mechanical pulse from the transmission side waveguide wire, and obtain the transmission side magnetic ring and the transmission side electronic warehouse according to the received transmission side mechanical pulse. distance; the operating side magnetostrictive displacement sensor includes an operating side waveguide wire, an operating side magnetic ring and an operating side electronic warehouse; the operating side waveguide wire is coaxially fixedly installed in the operating side screw mounting sleeve, and the operating side magnetic ring is coaxially fixedly installed on the operating side screw; the operating side magnetic ring is coaxially sleeved on the operating side waveguide wire and can move along the axial direction of the operating side waveguide wire driven by the operating side screw; the operating side electronic warehouse can apply an operating side query pulse to the operating side waveguide wire, and receive an operating side mechanical pulse from the operating side waveguide wire, and obtain the distance between the operating side magnetic ring and the operating side electronic warehouse according to the received operating side mechanical pulse.

[0014] Furthermore, a transmission side magnetic ring mounting groove is coaxially opened on one end of the transmission side screw rod located in the transmission side screw rod mounting sleeve, and the transmission side magnetic ring can be coaxially installed in the transmission side magnetic ring mounting groove, and the depth of the transmission side magnetic ring mounting groove is consistent with the thickness of the transmission side magnetic ring; a transmission side waveguide wire channel connected to the transmission side magnetic ring mounting groove is coaxially opened in the transmission side screw rod, and the transmission side waveguide wire can move in the transmission side waveguide wire channel along the axial direction of the transmission side waveguide wire channel; one end of the transmission side waveguide wire is fixedly mounted on the closed end of the transmission side screw rod mounting sleeve, and the transmission side electronic warehouse is connected to one end of the transmission side waveguide wire fixedly mounted on the closed end of the transmission side screw rod mounting sleeve Connection; an operating side magnetic ring mounting groove is coaxially opened on one end of the operating side screw rod located in the operating side screw rod mounting sleeve, and the operating side magnetic ring can be coaxially installed in the operating side magnetic ring mounting groove, and the depth of the operating side magnetic ring mounting groove is consistent with the thickness of the operating side magnetic ring; an operating side waveguide wire channel connected to the operating side magnetic ring mounting groove is coaxially opened in the operating side screw rod, and the operating side waveguide wire can move in the operating side waveguide wire channel along the axial direction of the operating side waveguide wire channel; one end of the operating side waveguide wire is fixedly mounted on the closed end of the operating side screw rod mounting sleeve, and the operating side electronic warehouse is connected to one end of the operating side waveguide wire fixedly mounted on the closed end of the operating side screw rod mounting sleeve.

[0015] Furthermore, the calculation formula for the distance between the transmission side hammer head and the operation side hammer head is:

[0016] S = S1-S2-S3;

[0017] Among them, S is the distance between the transmission side hammer head and the operating side hammer head; S1 is the distance between the closed end of the transmission side screw mounting sleeve and the closed end of the operating side screw mounting sleeve, S2 is the distance between the transmission side magnetic ring and the transmission side electronic warehouse; S3 is the distance between the operating side magnetic ring and the operating side electronic warehouse.

[0018] Furthermore, the transmission side electronic warehouse includes a transmission side circuit board, a transmission side central lead and a transmission side induction coil; one end of the transmission side waveguide wire fixedly mounted on the closed end of the transmission side screw mounting sleeve is connected to the transmission side circuit board, the transmission side waveguide wire is connected to the transmission side induction coil through the transmission side central lead, and the transmission side induction coil is connected to the transmission side circuit board; the operating side electronic warehouse includes an operating side circuit board, an operating side central lead and an operating side induction coil; one end of the operating side waveguide wire fixedly mounted on the closed end of the operating side screw mounting sleeve is connected to the operating side circuit board, the operating side waveguide wire is connected to the operating side induction coil through the operating side central lead, and the operating side induction coil is connected to the operating side circuit board.

[0019] Furthermore, a plurality of first transmission side fixing screw holes are coaxially opened on the transmission side magnetic ring, and a plurality of second transmission side fixing screw holes are coaxially opened on the transmission side magnetic ring mounting groove, and the number of the first transmission side fixing screw holes is consistent with that of the second transmission side fixing screw holes and they correspond one to one; it also includes a transmission side fixing bolt, and the transmission side fixing bolt can simultaneously penetrate the first transmission side fixing screw hole and the second transmission side fixing screw hole and fix the transmission side magnetic ring in the transmission side magnetic ring mounting groove; a plurality of first operating side fixing screw holes are coaxially opened on the operating side magnetic ring, and a plurality of second operating side fixing screw holes are coaxially opened on the operating side magnetic ring mounting groove, and the number of the first operating side fixing screw holes is consistent with that of the second operating side fixing screw holes and they correspond one to one; it also includes an operating side fixing bolt, and the operating side fixing bolt can simultaneously penetrate the first operating side fixing screw hole and the second operating side fixing screw hole and fix the operating side magnetic ring in the operating side magnetic ring mounting groove.

[0020] Furthermore, it also includes a conveyor belt; the conveyor belt is located directly below the slab processing channel and can drive the slab in the slab processing channel to move along the length direction of the slab processing channel.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] 1. In the present invention, a transmission side magnetostrictive displacement sensor and an operating side magnetostrictive displacement sensor are used to replace the absolute value multi-turn encoder to obtain the distance between the transmission side hammer head and the operating side hammer head (i.e., the roll gap value of the present invention). Compared with the absolute value multi-turn encoder, the transmission side magnetostrictive displacement sensor and the operating side magnetostrictive displacement sensor are less affected by vibration and less prone to degradation. Therefore, compared with the absolute value multi-turn encoder used in the prior art, the transmission side magnetostrictive displacement sensor and the operating side magnetostrictive displacement sensor used in the present invention have a longer service life, do not need to be frequently replaced, and can avoid a decrease in production efficiency.

[0023] 2. In the present invention, when the transmission side worm rotates around its axis driven by the transmission side motor, the transmission side worm wheel rotates around its axis driven by the transmission side worm, and the transmission side screw moves along the axial direction of the transmission side screw mounting sleeve driven by the transmission side worm wheel, and the transmission side hammer head hammers the left side of the slab in the slab processing channel driven by the transmission side screw; when the operating side worm rotates around its axis driven by the operating side motor, the operating side worm wheel rotates around its axis driven by the operating side worm, and the operating side screw moves along the axial direction of the operating side screw mounting sleeve driven by the operating side worm wheel, and the operating side hammer head hammers the right side of the slab in the slab processing channel driven by the operating side screw.

[0024] 3. In the present invention, the transmission side electronic warehouse applies a transmission side query pulse to the transmission side waveguide wire, and the transmission side query pulse is transmitted from the transmission side electronic warehouse to the transmission side magnetic ring. When the magnetic field generated by the transmission side query pulse intersects with the magnetic field of the transmission side magnetic ring, due to the effect of magnetostriction, a transmission side mechanical pulse transmitted to the transmission side electronic warehouse will be generated at the position where the transmission side magnetic ring is sleeved on the transmission side waveguide wire. The time for the transmission side mechanical pulse to be transmitted on the transmission side waveguide wire is proportional to the distance between the transmission side magnetic ring and the transmission side electronic warehouse. Therefore, the distance between the transmission side magnetic ring and the transmission side electronic warehouse can be measured by the time for the transmission side mechanical pulse to be transmitted on the transmission side waveguide wire. Similarly, the operating side electronic warehouse applies an operating side query pulse to the operating side waveguide wire, and the operating side query pulse is transmitted from the operating side electronic warehouse to the operating side magnetic ring. When the magnetic field generated by the operating side query pulse intersects with the magnetic field of the operating side magnetic ring, due to the effect of magnetostriction, an operating side mechanical pulse transmitted to the operating side electronic warehouse will be generated at the position where the operating side magnetic ring is provided on the operating side waveguide wire. The time for the operating side mechanical pulse to be transmitted on the operating side waveguide wire is proportional to the distance between the operating side magnetic ring and the operating side electronic warehouse. Therefore, the distance between the operating side magnetic ring and the operating side electronic warehouse can be measured by the time for the operating side mechanical pulse to be transmitted on the operating side waveguide wire.

[0025] 4. In the present invention, one end of the transmission side magnetic ring is flush with one end of the transmission side screw located in the transmission side screw mounting sleeve, and the transmission side electronic warehouse is connected to one end of the transmission side waveguide wire fixedly mounted on the closed end of the transmission side screw mounting sleeve. Therefore, the distance between the transmission side magnetic ring and the transmission side electronic warehouse in the present invention is equal to the distance between the transmission side screw and the closed end of the transmission side screw mounting sleeve. Similarly, one end of the operating side magnetic ring is flush with one end of the operating side screw located in the operating side screw mounting sleeve, and the operating side electronic warehouse is fixedly mounted on the operating side waveguide wire on the operating side screw. One end of the closed end of the mounting sleeve is connected, therefore, the distance between the operating side magnetic ring and the operating side electronic warehouse in the present invention is equal to the distance between the operating side screw and the closed end of the operating side screw mounting sleeve. Since the relative position between the transmission side screw mounting sleeve and the operating side screw mounting sleeve is fixed, the distance between the closed end of the transmission side screw mounting sleeve and the closed end of the operating side screw mounting sleeve can be obtained. The distance between the transmission side hammer head and the operating side hammer head can be calculated through the calculation formula of the distance between the transmission side hammer head and the operating side hammer head, that is, the roller gap value of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 It is a schematic diagram of the process of hammering a slab by a transmission side hammer and an operating side hammer in Example 1 of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall structure of the operating side width fixing mechanism in Example 1 of the present invention;

[0029] Figure 3 Schematic diagram of the overall structure of the transmission side width fixing mechanism in Example 1 of the present invention;

[0030] Figure 4 It is a cross-sectional view of the width fixing mechanism on the operating side in Embodiment 1 of the present invention;

[0031] Figure 5 It is a cross-sectional view of the transmission side width fixing mechanism in Example 1 of the present invention;

[0032] Figure 6 This is a schematic diagram of the overall structure of the operating side lead screw and the operating side magnetic ring in Example 1 of the present invention;

[0033] Figure 7 for Figure 6AA section view of the screw rod on the middle operating side;

[0034] Figure 8 It is a schematic diagram of the overall structure of the transmission side lead screw and the transmission side magnetic ring in Example 1 of the present invention;

[0035] Fig. 9 for Figure 8 BB section view of the screw rod on the middle transmission side;

[0036] In the figure: 1-slab; 2-transmission side hammer; 3-operation side hammer; 4-slab processing channel; 5-operation side motor; 6-operation side transmission assembly; 7-transmission side motor; 8-transmission side transmission assembly; 9-operation side magnetostrictive displacement sensor; 10-transmission side magnetostrictive displacement sensor; 11-first operation side fixing screw hole; 12-operation side magnetic ring mounting groove; 13-operation side waveguide wire channel; 14-second operation side fixing screw hole; 15-first transmission side fixing screw hole; 16-transmission side magnetic ring mounting groove; 17 -transmission side waveguide wire channel; 18-second transmission side fixing screw hole; 601-operation side worm; 602-operation side worm wheel; 603-operation side lead screw; 604-operation side lead screw mounting sleeve; 801-transmission side worm; 802-transmission side worm wheel; 803-transmission side lead screw; 804-transmission side lead screw mounting sleeve; 901-operation side electronic compartment; 902-operation side waveguide wire; 903-operation side magnetic ring; 1001-transmission side electronic compartment; 1002-transmission side waveguide wire; 1003-transmission side magnetic ring. DETAILED DESCRIPTION

[0037] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0040] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0041] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0042] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0043] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0044] Embodiment 1:

[0045] like Figures 1 to 5 As shown, a fixed width press machine based on position control of a magnetostrictive displacement sensor comprises a slab processing channel 4 through which a slab 1 can pass, and also comprises a transmission side and an operating side, wherein the transmission side and the operating side are respectively located on the left and right sides of the slab processing channel 4, the transmission side comprises a transmission side fixed width mechanism, and the operating side comprises an operating side fixed width mechanism and an operating table; the transmission side fixed width mechanism comprises a transmission side motor 7, a transmission side transmission assembly 8, a transmission side hammer 2 and a transmission side magnetostrictive displacement sensor 10; the transmission side motor 7 drives the transmission side hammer 2 to hammer the left side of the slab 1 in the slab processing channel 4 through the transmission side transmission assembly 8; the operating side fixed width mechanism comprises an operating side motor 5, an operating side transmission assembly 6, an operating side hammer 3 and An operating side magnetostrictive displacement sensor 9; the operating side motor 5 drives the operating side hammer 3 to hammer the right side of the slab 1 in the slab processing channel 4 through the operating side transmission assembly 6; the transmission side hammer 2 and the operating side hammer 3 are left-right symmetrical about the length direction of the slab processing channel 4, and the distance between the transmission side hammer 2 and the operating side hammer 3 can be obtained through the transmission side magnetostrictive displacement sensor 10 and the operating side magnetostrictive displacement sensor 9; the signal output end of the transmission side magnetostrictive displacement sensor 10 and the signal output end of the operating side magnetostrictive displacement sensor 9 are both connected to the signal input end of the operating table, and the signal input end of the transmission side motor 7 and the signal input end of the operating side motor 5 are both connected to the signal output end of the operating table.

[0046] In this embodiment, a transmission side magnetostrictive displacement sensor 10 and an operating side magnetostrictive displacement sensor 9 are used to replace the absolute value multi-turn encoder to obtain the distance between the transmission side hammer head 2 and the operating side hammer head 3 (that is, the roll gap value of this embodiment). The operating platform obtains the roll gap feedback value according to the roll gap value to control the transmission side motor 7 and the operating side motor 5 to realize the roll gap closed-loop control function of this embodiment. Compared with the absolute value multi-turn encoder, the transmission side magnetostrictive displacement sensor 10 and the operating side magnetostrictive displacement sensor 9 are less affected by vibration and less prone to deterioration. Therefore, compared with the absolute value multi-turn encoder used in the prior art, the transmission side magnetostrictive displacement sensor 10 and the operating side magnetostrictive displacement sensor 9 used in this embodiment have a longer service life, do not need to be frequently replaced, and can avoid a decrease in production efficiency.

[0047] Specifically, "the operating platform obtains the roll gap feedback value according to the roll gap value to control the transmission side motor 7 and the operating side motor 5 to realize the roll gap closed-loop control function of this embodiment" is a conventional technical means in this field and will not be described here.

[0048] In this embodiment, the transmission side transmission assembly 8 includes a transmission side screw mounting sleeve 804, a transmission side screw 803, a transmission side worm wheel 802 and a transmission side worm 801; the transmission side screw mounting sleeve 804 is a cylindrical structure with an axis parallel to the horizontal plane and one end closed and the other end open; one end of the transmission side screw 803 is coaxially mounted in the transmission side screw mounting sleeve 804 through the open end of the transmission side screw mounting sleeve 804 and can move along the axial direction of the transmission side screw mounting sleeve 804, and the other end of the transmission side screw 803 is located outside the transmission side screw mounting sleeve 804; the relative position between the transmission side worm wheel 802 and the transmission side screw mounting sleeve 804 is fixed, and the screw hole in the transmission side worm wheel 802 is aligned with the transmission side worm wheel 801. The thread on the outside of the moving side screw 803 cooperates; the spiral groove on the outside of the transmission side worm 801 meshes with the gear teeth on the outside of the transmission side worm wheel 802; the output shaft of the transmission side motor 7 is coaxially connected with the transmission side worm 801, and the transmission side hammer head 2 is installed on the transmission side screw 803 at one end outside the transmission side screw mounting sleeve 804. When the transmission side worm 801 rotates around its axis under the drive of the transmission side motor 7, the transmission side worm wheel 802 rotates around its axis under the drive of the transmission side worm 801, and the transmission side screw 803 moves along the axial direction of the transmission side screw mounting sleeve 804 under the drive of the transmission side worm wheel 802, and the transmission side hammer head 2 is driven by the transmission side screw 803 to perform machining on the left side of the slab 1 in the slab processing channel 4. Hammering; the operating side transmission assembly 6 includes an operating side screw mounting sleeve 604, an operating side screw 603, an operating side worm gear 602 and an operating side worm 601; the operating side screw mounting sleeve 604 is a cylindrical structure with an axis parallel to the horizontal plane and one end closed and the other end open; one end of the operating side screw 603 is coaxially mounted in the operating side screw mounting sleeve 604 through the open end of the operating side screw mounting sleeve 604 and can move along the axial direction of the operating side screw mounting sleeve 604, and the other end of the operating side screw 603 is located outside the operating side screw mounting sleeve 604; the relative position between the operating side worm gear 602 and the operating side screw mounting sleeve 604 is fixed, and the screw hole in the operating side worm gear 602 and the operating side screw The thread outside the rod 603 cooperates; the spiral groove outside the operating side worm 601 is meshed with the gear teeth outside the operating side worm wheel 602; the output shaft of the operating side motor 5 is coaxially connected with the operating side worm 601, and the operating side hammer head 3 is installed on the operating side screw 603 at one end outside the operating side screw mounting sleeve 604. When the operating side worm 601 rotates around its axis under the drive of the operating side motor 5, the operating side worm wheel 602 rotates around its axis under the drive of the operating side worm 601, and the operating side screw 603 moves along the axial direction of the operating side screw mounting sleeve 604 under the drive of the operating side worm wheel 602, and the operating side hammer head 3 hammers the right side of the slab 1 in the slab processing channel 4 under the drive of the operating side screw 603;The axis of the transmission side screw rod installation sleeve 804 and the axis of the operating side screw rod installation sleeve 604 are located on the same straight line and are perpendicular to the length direction of the slab processing channel 4. The relative position between the transmission side screw rod installation sleeve 804 and the operating side screw rod installation sleeve 604 is fixed, and the distance between the closed end of the transmission side screw rod installation sleeve 804 and the closed end of the operating side screw rod installation sleeve 604 can be obtained. ;

[0049] In this embodiment, the transmission side magnetostrictive displacement sensor 10 includes a transmission side waveguide wire 1002, a transmission side magnetic ring 1003 and a transmission side electronic warehouse 1001; the transmission side waveguide wire 1002 is coaxially fixedly installed in the transmission side screw mounting sleeve 804, and the transmission side magnetic ring 1003 is coaxially fixedly installed on the transmission side screw 803; the transmission side magnetic ring 1003 is coaxially sleeved on the transmission side waveguide wire 1002 and can move along the axial direction of the transmission side waveguide wire 1002 driven by the transmission side screw 803; the transmission side electronic warehouse 1001 can both apply a transmission side query pulse to the transmission side waveguide wire 1002 and receive a transmission side mechanical pulse from the transmission side waveguide wire 1002, and obtain the transmission side magnetic ring 1003 and the transmission side electronic warehouse according to the received transmission side mechanical pulse. 1001; the operating side magnetostrictive displacement sensor 9 includes an operating side waveguide wire 902, an operating side magnetic ring 903 and an operating side electronic warehouse 901; the operating side waveguide wire 902 is coaxially fixedly installed in the operating side screw mounting sleeve 604, and the operating side magnetic ring 903 is coaxially fixedly installed on the operating side screw 603; the operating side magnetic ring 903 is coaxially sleeved on the operating side waveguide wire 902 and can move along the axial direction of the operating side waveguide wire 902 driven by the operating side screw 603; the operating side electronic warehouse 901 can both apply an operating side query pulse to the operating side waveguide wire 902 and receive an operating side mechanical pulse from the operating side waveguide wire 902, and obtain the distance between the operating side magnetic ring 903 and the operating side electronic warehouse 901 according to the received operating side mechanical pulse.

[0050] Specifically, the working principle of the transmission side magnetostrictive displacement sensor 10 in the present embodiment is as follows: the transmission side electronic compartment 1001 applies a transmission side query pulse to the transmission side waveguide wire 1002, and the transmission side query pulse is transmitted from the transmission side electronic compartment 1001 to the transmission side magnetic ring 1003. When the magnetic field generated by the transmission side query pulse intersects with the magnetic field of the transmission side magnetic ring 1003, due to the effect of magnetostriction, a transmission side mechanical pulse transmitted to the transmission side electronic compartment 1001 will be generated at the position where the transmission side magnetic ring 1003 is sleeved on the transmission side waveguide wire 1002. The time for the transmission side mechanical pulse to be transmitted on the transmission side waveguide wire 1002 is proportional to the distance between the transmission side magnetic ring 1003 and the transmission side electronic compartment 1001. Therefore, the distance between the transmission side magnetic ring 1003 and the transmission side electronic compartment 1001 can be measured by the time for the transmission side mechanical pulse to be transmitted on the transmission side waveguide wire 1002. 01; similarly, the working principle of the operating side magnetostrictive displacement sensor 9 in the present embodiment is: the operating side electronic compartment 901 applies an operating side query pulse to the operating side waveguide wire 902, and the operating side query pulse is transmitted from the operating side electronic compartment 901 to the operating side magnetic ring 903. When the magnetic field generated by the operating side query pulse intersects with the magnetic field of the operating side magnetic ring 903, due to the effect of magnetostriction, an operating side mechanical pulse transmitted to the operating side electronic compartment 901 will be generated at the position where the operating side magnetic ring 903 is sleeved on the operating side waveguide wire 902. The time for the operating side mechanical pulse to be transmitted on the operating side waveguide wire 902 is proportional to the distance between the operating side magnetic ring 903 and the operating side electronic compartment 901. Therefore, the distance between the operating side magnetic ring 903 and the operating side electronic compartment 901 can be measured by the time for the operating side mechanical pulse to be transmitted on the operating side waveguide wire 902.

[0051] In this embodiment, a transmission side magnetic ring mounting groove 16 is coaxially opened on one end of the transmission side screw rod 803 located in the transmission side screw rod mounting sleeve 804, and the transmission side magnetic ring 1003 can be coaxially installed in the transmission side magnetic ring mounting groove 16. The depth of the transmission side magnetic ring mounting groove 16 is consistent with the thickness of the transmission side magnetic ring 1003. When the transmission side magnetic ring 1003 is installed in the transmission side magnetic ring mounting groove 16, one end of the transmission side magnetic ring 1003 is flush with one end of the transmission side screw rod 803 located in the transmission side screw rod mounting sleeve 804; the transmission side screw rod 803 is coaxially opened with the transmission side magnetic ring mounting groove 16. 6 is connected to the transmission side waveguide wire channel 17, and the transmission side waveguide wire 1002 can move in the transmission side waveguide wire channel 17 along the axial direction of the transmission side waveguide wire channel 17; one end of the transmission side waveguide wire 1002 is fixedly mounted on the closed end of the transmission side screw rod mounting sleeve 804, and the transmission side electronic warehouse 1001 is connected to one end of the transmission side waveguide wire 1002 fixedly mounted on the closed end of the transmission side screw rod mounting sleeve 804. At this time, the distance between the transmission side magnetic ring 1003 and the transmission side electronic warehouse 1001 in this embodiment is equal to the sealing distance between the transmission side screw rod 803 and the transmission side screw rod mounting sleeve 804. The distance between the closed ends; an operating side magnetic ring mounting groove 12 is coaxially opened on one end of the operating side screw rod 603 located in the operating side screw rod mounting sleeve 604, and the operating side magnetic ring 903 can be coaxially installed in the operating side magnetic ring mounting groove 12. The depth of the operating side magnetic ring mounting groove 12 is consistent with the thickness of the operating side magnetic ring 903. When the operating side magnetic ring 903 is installed in the operating side magnetic ring mounting groove 12, one end of the operating side magnetic ring 903 is flush with the end of the operating side screw rod 603 located in the operating side screw rod mounting sleeve 604; a coaxial opening connected to the operating side magnetic ring mounting groove 12 is opened in the operating side screw rod 603 The operating side waveguide wire channel 13 is connected, and the operating side waveguide wire 902 can move in the operating side waveguide wire channel 13 along the axial direction of the operating side waveguide wire channel 13; one end of the operating side waveguide wire 902 is fixedly mounted on the closed end of the operating side screw mounting sleeve 604, and the operating side electronic warehouse 901 is connected to one end of the operating side waveguide wire 902 fixedly mounted on the closed end of the operating side screw mounting sleeve 604. At this time, the distance between the operating side magnetic ring 903 and the operating side electronic warehouse 901 in this embodiment is equal to the distance between the operating side screw 603 and the closed end of the operating side screw mounting sleeve 604.

[0052] In this embodiment, the calculation formula of the distance between the transmission side hammer head 2 and the operation side hammer head 3 is:

[0053] S = S1-S2-S3;

[0054] Among them, S is the distance between the transmission side hammer head 2 and the operating side hammer head 3 (that is, the roller gap value of this embodiment); S1 is the distance between the closed end of the transmission side screw mounting sleeve 804 and the closed end of the operating side screw mounting sleeve 604, S2 is the distance between the transmission side magnetic ring 1003 and the transmission side electronic warehouse 1001; S3 is the distance between the operating side magnetic ring 903 and the operating side electronic warehouse 901.

[0055] In this embodiment, the transmission side electronic compartment 1001 includes a transmission side circuit board, a transmission side central lead and a transmission side induction coil; one end of the transmission side waveguide wire 1002 fixedly mounted on the closed end of the transmission side screw mounting sleeve 804 is connected to the transmission side circuit board, the transmission side waveguide wire 1002 is connected to the transmission side induction coil through the transmission side central lead, and the transmission side induction coil is connected to the transmission side circuit board; the operating side electronic compartment 901 includes an operating side circuit board, an operating side central lead and an operating side induction coil; one end of the operating side waveguide wire 902 fixedly mounted on the closed end of the operating side screw mounting sleeve 604 is connected to the operating side circuit board, the operating side waveguide wire 902 is connected to the operating side induction coil through the operating side central lead, and the operating side induction coil is connected to the operating side circuit board.

[0056] Specifically, the transmission side circuit board applies a transmission side query pulse to the transmission side waveguide wire 1002, and the transmission side mechanical pulse of the transmission side waveguide wire 1002 is sequentially transmitted to the transmission side circuit board via the transmission side central lead and the transmission side induction coil, and the signal output end of the transmission side circuit board is the signal output end of the transmission side magnetostrictive displacement sensor 10; the operation side circuit board applies an operation side query pulse to the operation side waveguide wire 902, and the operation side mechanical pulse of the operation side waveguide wire 902 is sequentially transmitted to the operation side circuit board via the operation side central lead and the operation side induction coil, and the signal output end of the operation side circuit board is the signal output end of the operation side magnetostrictive displacement sensor 9.

[0057] In addition, the transmission side circuit board is connected to a transmission side display screen for displaying the distance between the transmission side magnetic ring 1003 and the transmission side electronic compartment 1001; the operation side circuit board is connected to an operation side display screen for displaying the distance between the operation side magnetic ring 903 and the operation side electronic compartment 901.

[0058] Specifically, the "transmission side circuit board", "operation side circuit board", "transmission side central lead", "operation side central lead", "transmission side induction coil" and "operation side induction coil" in this embodiment are conventional technical means in this field and will not be described here.

[0059] In this embodiment, Figures 6 to 9As shown, the transmission side magnetic ring 1003 is coaxially provided with a plurality of first transmission side fixing screw holes 15, and the transmission side magnetic ring mounting groove 16 is coaxially provided with a plurality of second transmission side fixing screw holes 18, and the first transmission side fixing screw holes 15 and the second transmission side fixing screw holes 18 are consistent in number and correspond one to one; and also includes a transmission side fixing bolt, which can simultaneously penetrate the first transmission side fixing screw hole 15 and the second transmission side fixing screw hole 18 and fix the transmission side magnetic ring 1003 in the transmission side magnetic ring mounting groove 16. 6; a plurality of first operating side fixing screw holes 11 are coaxially opened on the operating side magnetic ring 903, and a plurality of second operating side fixing screw holes 14 are coaxially opened on the operating side magnetic ring mounting groove 12, and the first operating side fixing screw holes 11 and the second operating side fixing screw holes 14 are consistent in number and correspond one to one; and also include an operating side fixing bolt, which can simultaneously penetrate the first operating side fixing screw hole 11 and the second operating side fixing screw hole 14 and fix the operating side magnetic ring 903 in the operating side magnetic ring mounting groove 12.

[0060] In this embodiment, a conveyor belt is also included; the conveyor belt is located directly below the slab processing channel 4 and can drive the slab 1 in the slab processing channel 4 to move along the length direction of the slab processing channel 4.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fixed width press machine based on position control of a magnetostrictive displacement sensor, comprising a slab processing channel (4) through which a slab (1) can pass, and also comprising a transmission side and an operating side, wherein the transmission side and the operating side are respectively located on the left and right sides of the slab processing channel (4), characterized in that: The transmission side includes a transmission side width-fixing mechanism, and the operating side includes an operating side width-fixing mechanism and an operating table; The transmission side width-fixing mechanism comprises a transmission side motor (7), a transmission side transmission assembly (8), a transmission side hammer (2) and a transmission side magnetostrictive displacement sensor (10); the transmission side motor (7) drives the transmission side hammer (2) through the transmission side transmission assembly (8) to hammer the left side of the slab (1) in the slab processing channel (4); The operating side width-fixing mechanism comprises an operating side motor (5), an operating side transmission assembly (6), an operating side hammer head (3) and an operating side magnetostrictive displacement sensor (9); the operating side motor (5) drives the operating side hammer head (3) through the operating side transmission assembly (6) to hammer the right side of the slab (1) in the slab processing channel (4); The transmission side hammer head (2) and the operating side hammer head (3) are bilaterally symmetrical with respect to the length direction of the slab processing channel (4), and the distance between the transmission side hammer head (2) and the operating side hammer head (3) can be obtained by using the transmission side magnetostrictive displacement sensor (10) and the operating side magnetostrictive displacement sensor (9); The signal output end of the transmission side magnetostrictive displacement sensor (10) and the signal output end of the operation side magnetostrictive displacement sensor (9) are both connected to the signal input end of the operating table, and the signal input end of the transmission side motor (7) and the signal input end of the operation side motor (5) are both connected to the signal output end of the operating table.

2. A fixed width press machine based on position control of a magnetostrictive displacement sensor according to claim 1, characterized in that: The transmission side transmission assembly (8) comprises a transmission side screw rod mounting sleeve (804), a transmission side screw rod (803), a transmission side worm wheel (802) and a transmission side worm rod (801); The transmission side screw rod installation sleeve (804) is a cylindrical structure with an axis parallel to the horizontal plane and one end closed and the other end open; one end of the transmission side screw rod (803) is coaxially installed in the transmission side screw rod installation sleeve (804) through the open end of the transmission side screw rod installation sleeve (804) and can move along the axis direction of the transmission side screw rod installation sleeve (804), and the other end of the transmission side screw rod (803) is located outside the transmission side screw rod installation sleeve (804); the transmission side worm wheel (802) and the transmission side screw rod are connected to each other. The relative position between the rod mounting sleeve (804) is fixed, the screw hole in the transmission side worm wheel (802) cooperates with the thread outside the transmission side screw rod (803); the spiral groove outside the transmission side worm rod (801) meshes with the gear teeth outside the transmission side worm wheel (802); the output shaft of the transmission side motor (7) is coaxially connected with the transmission side worm rod (801), and the transmission side hammer head (2) is mounted on the transmission side screw rod (803) at one end outside the transmission side screw rod mounting sleeve (804); The operating side transmission assembly (6) comprises an operating side screw rod mounting sleeve (604), an operating side screw rod (603), an operating side worm wheel (602) and an operating side worm rod (601); The operating side screw rod installation sleeve (604) is a cylindrical structure with an axis parallel to the horizontal plane and one end closed and the other end open; one end of the operating side screw rod (603) is coaxially installed in the operating side screw rod installation sleeve (604) through the open end of the operating side screw rod installation sleeve (604) and can move along the axis direction of the operating side screw rod installation sleeve (604), and the other end of the operating side screw rod (603) is located outside the operating side screw rod installation sleeve (604); the operating side worm gear (602) and the operating side screw rod are connected to each other. The relative position between the rod mounting sleeve (604) is fixed; the screw hole in the operating side worm wheel (602) cooperates with the thread outside the operating side lead screw (603); the spiral groove outside the operating side worm (601) meshes with the gear teeth outside the operating side worm wheel (602); the output shaft of the operating side motor (5) is coaxially connected with the operating side worm (601); the operating side hammer head (3) is mounted on the operating side lead screw (603) at one end outside the operating side lead screw mounting sleeve (604); The axis of the transmission side screw rod mounting sleeve (804) and the axis of the operating side screw rod mounting sleeve (604) are located on the same straight line and are both perpendicular to the length direction of the slab processing channel (4), and the relative position between the transmission side screw rod mounting sleeve (804) and the operating side screw rod mounting sleeve (604) is fixed and unchanged.

3. A fixed width press machine based on position control of a magnetostrictive displacement sensor according to claim 2, characterized in that: The transmission side magnetostrictive displacement sensor (10) comprises a transmission side waveguide wire (1002), a transmission side magnetic ring (1003) and a transmission side electronic compartment (1001); The transmission side waveguide wire (1002) is coaxially fixedly installed in the transmission side screw rod installation sleeve (804), and the transmission side magnetic ring (1003) is coaxially fixedly installed on the transmission side screw rod (803); the transmission side magnetic ring (1003) is coaxially sleeved on the transmission side waveguide wire (1002) and can move along the axial direction of the transmission side waveguide wire (1002) under the drive of the transmission side screw rod (803); the transmission side electronic warehouse (1001) can apply a transmission side query pulse to the transmission side waveguide wire (1002), and can also receive a transmission side mechanical pulse from the transmission side waveguide wire (1002), and obtain the distance between the transmission side magnetic ring (1003) and the transmission side electronic warehouse (1001) according to the received transmission side mechanical pulse; The operating-side magnetostrictive displacement sensor (9) comprises an operating-side waveguide wire (902), an operating-side magnetic ring (903) and an operating-side electronic compartment (901); The operating side waveguide wire (902) is coaxially fixedly installed in the operating side screw rod installation sleeve (604), and the operating side magnetic ring (903) is coaxially fixedly installed on the operating side screw rod (603); the operating side magnetic ring (903) is coaxially sleeved on the operating side waveguide wire (902) and can move along the axial direction of the operating side waveguide wire (902) under the drive of the operating side screw rod (603); the operating side electronic warehouse (901) can apply an operating side query pulse to the operating side waveguide wire (902), and can also receive an operating side mechanical pulse from the operating side waveguide wire (902), and obtain the distance between the operating side magnetic ring (903) and the operating side electronic warehouse (901) according to the received operating side mechanical pulse.

4. A fixed width press machine based on position control of a magnetostrictive displacement sensor according to claim 3, characterized in that: A transmission side magnetic ring installation groove (16) is coaxially provided on one end of the transmission side screw rod (803) located inside the transmission side screw rod installation sleeve (804); the transmission side magnetic ring (1003) can be coaxially installed in the transmission side magnetic ring installation groove (16); the depth of the transmission side magnetic ring installation groove (16) is consistent with the thickness of the transmission side magnetic ring (1003); a transmission side waveguide connected to the transmission side magnetic ring installation groove (16) is coaxially provided inside the transmission side screw rod (803). The transmission side waveguide wire (1002) can move in the transmission side waveguide wire channel (17) along the axial direction of the transmission side waveguide wire channel (17); one end of the transmission side waveguide wire (1002) is fixedly mounted on the closed end of the transmission side screw rod mounting sleeve (804); the transmission side electronic compartment (1001) is connected to one end of the transmission side waveguide wire (1002) fixedly mounted on the closed end of the transmission side screw rod mounting sleeve (804); An operating side magnetic ring installation groove (12) is coaxially provided on one end of the operating side screw rod (603) located inside the operating side screw rod installation sleeve (604), and the operating side magnetic ring (903) can be coaxially installed in the operating side magnetic ring installation groove (12), and the depth of the operating side magnetic ring installation groove (12) is consistent with the thickness of the operating side magnetic ring (903); an operating side magnetic ring (12) is coaxially provided in the operating side screw rod (603) and is connected to the operating side magnetic ring installation groove (12). The operating side waveguide wire (902) is movable in the operating side waveguide wire channel (13) along the axial direction of the operating side waveguide wire channel (13); one end of the operating side waveguide wire (902) is fixedly mounted on the closed end of the operating side screw rod mounting sleeve (604); the operating side electronic compartment (901) is connected to one end of the operating side waveguide wire (902) fixedly mounted on the closed end of the operating side screw rod mounting sleeve (604).

5. A fixed width press machine based on position control of a magnetostrictive displacement sensor according to claim 4, characterized in that: The calculation formula for the distance between the transmission side hammer head (2) and the operation side hammer head (3) is: S = S1-S2-S3; Among them, S is the distance between the transmission side hammer head (2) and the operating side hammer head (3); S1 is the distance between the closed end of the transmission side screw mounting sleeve (804) and the closed end of the operating side screw mounting sleeve (604); S2 is the distance between the transmission side magnetic ring (1003) and the transmission side electronic warehouse (1001); S3 is the distance between the operating side magnetic ring (903) and the operating side electronic warehouse (901).

6. A fixed width press machine based on position control of a magnetostrictive displacement sensor according to claim 4, characterized in that: The transmission side electronic compartment (1001) comprises a transmission side circuit board, a transmission side central lead and a transmission side induction coil; One end of the transmission side waveguide wire (1002) fixedly mounted on the closed end of the transmission side screw rod mounting sleeve (804) is connected to the transmission side circuit board, the transmission side waveguide wire (1002) is connected to the transmission side induction coil via the transmission side central lead, and the transmission side induction coil is connected to the transmission side circuit board; The operating side electronic compartment (901) comprises an operating side circuit board, an operating side central lead wire and an operating side induction coil; One end of the operating side waveguide wire (902) fixedly mounted on the closed end of the operating side screw rod mounting sleeve (604) is connected to the operating side circuit board, and the operating side waveguide wire (902) is connected to the operating side induction coil through the operating side central lead, and the operating side induction coil is connected to the operating side circuit board.

7. The fixed width press machine based on position control of magnetostrictive displacement sensor according to claim 4, characterized in that: A plurality of first transmission side fixing screw holes (15) are coaxially formed on the transmission side magnetic ring (1003), and a plurality of second transmission side fixing screw holes (18) are coaxially formed on the transmission side magnetic ring mounting groove (16), wherein the first transmission side fixing screw holes (15) and the second transmission side fixing screw holes (18) are identical in number and correspond one to one; and further comprising a transmission side fixing bolt, wherein the transmission side fixing bolt can simultaneously penetrate the first transmission side fixing screw hole (15) and the second transmission side fixing screw hole (18) and fix the transmission side magnetic ring (1003) in the transmission side magnetic ring mounting groove (16); The operating side magnetic ring (903) is coaxially provided with a plurality of first operating side fixing screw holes (11), and the operating side magnetic ring mounting groove (12) is coaxially provided with a plurality of second operating side fixing screw holes (14), wherein the first operating side fixing screw holes (11) and the second operating side fixing screw holes (14) are identical in number and correspond one to one; and further comprising an operating side fixing bolt, wherein the operating side fixing bolt can simultaneously penetrate the first operating side fixing screw hole (11) and the second operating side fixing screw hole (14) and fix the operating side magnetic ring (903) in the operating side magnetic ring mounting groove (12).

8. The fixed width press machine based on position control of magnetostrictive displacement sensor according to claim 1, characterized in that: Also includes conveyor belts; The conveyor belt is located directly below the slab processing channel (4) and can drive the slab (1) in the slab processing channel (4) to move along the length direction of the slab processing channel (4).

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