High-temperature-resistant position detection system for slab clamp positioning device

Abstract

The utility model discloses a high-temperature-resistant position detection system for a slab clamp positioning device. The high-temperature-resistant position detection system comprises a rotating shaft, a first proximity switch and an induction sheet mechanism, the rotating shaft is rotationally installed on a fixed box body of the slab clamp positioning device, a transmission mechanism connected with a lead screw of the slab clamp positioning device is fixedly arranged at one end of the rotating shaft, and the transmission mechanism is used for driving the rotating shaft and the lead screw to rotate synchronously; the induction piece mechanism is fixedly installed on the rotating shaft, and the rotating shaft can drive the induction piece mechanism to rotate together. The first proximity switch is fixedly installed on a fixed box body of the plate blank clamp positioning device and used for detecting the induction piece mechanism in the process that the induction piece mechanism rotates along with the rotating shaft so as to obtain an induction signal and transmitting the induction signal to the controller. The high-temperature-resistant position detection system for the plate blank clamp positioning device is simple in structure and capable of accurately detecting the position of the positioning device so as to clamp plate blanks with different numbers and different thicknesses.

Description

Technical Field

[0001] This utility model relates to the field of slab clamp technology, and in particular to a high-temperature resistant position detection system for a slab clamp positioning device. Background Technology

[0002] Slab clamps are widely used in industries such as steel and metallurgy. When slab clamps are working, a positioning device is needed to determine the thickness of the slab (i.e., the number of layers of the slab) that the clamps will hold. However, existing slab clamps can only be adjusted and positioned at a few levels, which limits their applicability and makes it inconvenient to detect and control the position of the slab clamp positioning device. Utility Model Content

[0003] This invention addresses the aforementioned problems by proposing a high-temperature resistant position detection system for a slab clamp positioning device.

[0004] The technical means adopted in this utility model are as follows:

[0005] A high-temperature resistant position detection system for a slab clamp positioning device includes:

[0006] Rotating shaft, first proximity switch, and sensing plate mechanism;

[0007] The rotating shaft is rotatably mounted on the fixed housing of the slab clamp positioning device, and one end of the rotating shaft is fixedly provided with a transmission mechanism connected to the lead screw of the slab clamp positioning device. The transmission mechanism is used to drive the rotating shaft to rotate synchronously with the lead screw.

[0008] The sensing plate mechanism is fixedly mounted on the rotating shaft, and the rotating shaft can drive the sensing plate mechanism to rotate together;

[0009] The first proximity switch is fixedly installed on the fixed housing of the slab clamp positioning device, and is used to detect the sensing plate mechanism during the rotation of the sensing plate mechanism with the rotating shaft to obtain a sensing signal, and transmit the sensing signal to the controller.

[0010] Furthermore, it also includes a position feedback mechanism fixedly installed on the slab clamp positioning device. The position feedback mechanism is used to detect the movement position of the sliding box of the slab clamp positioning device to obtain a position signal and transmit the position signal to the controller.

[0011] Furthermore, the position feedback mechanism includes three second proximity switches, which are fixedly mounted on one side wall of the fixed housing and arranged sequentially along the width direction;

[0012] Three sets of sensing blocks are fixed on the side wall of the sliding box. The three sets of sensing blocks are respectively opposite to the positions of three second proximity switches, so that when the sliding box moves up and down, the three sets of sensing blocks can sense the sensing signals of the base at different positions with the three second proximity switches and send the sensing signals to the controller.

[0013] Furthermore, the transmission mechanism includes a first gear, a second gear, and a connecting flange;

[0014] The first gear is fixedly installed at the end of the rotating shaft, and the second gear and the connecting flange are fixedly installed at the end of the lead screw of the slab clamp positioning device;

[0015] The first gear meshes with the second gear, the second gear is fixedly connected to the connecting flange, and the connecting flange is fixedly connected to the lead screw.

[0016] Furthermore, a bevel gear set is provided at the lower end of the rotating shaft, and the rotating shaft is connected to the output shaft of the drive device of the slab clamp positioning device through the bevel gear set;

[0017] The drive unit of the slab clamp positioning device drives the lead screw of the slab clamp positioning device to rotate through the bevel gear set, the rotating shaft and the transmission mechanism.

[0018] Furthermore, the sensing element mechanism includes a sensing element sleeve and two sensing elements symmetrically arranged on the outer wall of the sensing element sleeve; the sensing element sleeve can be fitted onto the rotating shaft and fixed by a pin.

[0019] Furthermore, it also includes a protective cover fixedly mounted on the fixed housing of the slab clamp positioning device, and the rotating shaft, the first proximity switch and the sensing plate mechanism are disposed inside the protective cover.

[0020] Compared with the prior art, the high-temperature position detection system of the slab clamp positioning device disclosed in this utility model has the following beneficial effects: The position detection system disclosed in this application is equipped with a rotating shaft, a first proximity switch and a sensing plate mechanism. The rotating shaft is connected to the lead screw of the slab clamp positioning device through a transmission mechanism, so that the rotating shaft and the lead screw can rotate synchronously. During the rotation of the rotating shaft, the proximity switch and the sensing plate mechanism sense and obtain the sensing signal, and transmit the sensing signal to the controller. Thus, the controller can obtain the position information of the positioning device according to the sensing signal, and can accurately control the movement and position of the positioning device, thereby realizing the clamping of slabs with different numbers and thicknesses. Attached Figure Description

[0021] Figure 1 A structural diagram of a slab clamp positioning device having the position detection system disclosed in this application;

[0022] Figure 2 for Figure 1 Sectional view at point AA;

[0023] Figure 3 A side view of a slab clamp positioning device with the position detection system disclosed in this application;

[0024] Figure 4 for Figure 2 Sectional view at AC-AC;

[0025] Figure 5 for Figure 2 Sectional view at point AB-AB;

[0026] Figure 6 The image shows a cross-sectional view of the slab clamp positioning device of the position detection system disclosed in this application, where the sensing block is located.

[0027] In the diagram: 1. Rotating shaft; 10. Pin hole; 2. First proximity switch; 3. Induction plate mechanism; 30. Induction plate sleeve; 31. Induction plate; 4. Transmission mechanism; 40. First gear; 41. Second gear; 42. Connecting flange; 5. Position feedback mechanism; 50. Second proximity switch; 51. Induction block; 6. Bevel gear set; 60. First bevel gear; 61. Second bevel gear; 62. Bevel gear shaft; 7. Protective cover; 8. Slab clamp positioning device; 80. Fixed housing; 81. Lead screw; 82. Sliding housing; 83. Lead screw nut; 84. Guide roller; 85. Base; 86. Fixed sleeve. Detailed Implementation

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the high-temperature resistant position detection system of the slab clamp positioning device disclosed in this application includes:

[0029] The rotating shaft 1, the first proximity switch 2, and the sensing plate mechanism 3 are included. The rotating shaft 1 is rotatably mounted on the fixed housing 80 of the slab clamp positioning device 8, and one end of the rotating shaft 1 is fixedly provided with a transmission mechanism 4 connected to the lead screw 81 of the slab clamp positioning device 8. The transmission mechanism 4 is used to drive the rotating shaft 1 and the lead screw 81 to rotate synchronously.

[0030] The sensing plate mechanism 3 is fixedly mounted on the rotating shaft 1, and the rotating shaft 1 can drive the sensing plate mechanism 3 to rotate together;

[0031] The first proximity switch 2 is fixedly installed on the fixed housing 80 of the slab clamp positioning device 8, and is used to detect the sensing plate mechanism 3 during the rotation of the sensing plate mechanism 3 with the rotating shaft 1 to obtain a sensing signal, and transmit the sensing signal to the controller.

[0032] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the slab clamp positioning device 8 includes a fixed housing 80, a sliding housing 82, a lead screw 81, a lead screw nut 83, a base 85, and guide rollers 84. The sliding housing 82 is slidably installed inside the fixed housing 80. Multiple sets of guide rollers 84 are fixedly provided on the fixed housing 80 to facilitate the sliding housing 82 to slide (move up and down) inside the fixed housing 80. The lower end of the sliding housing 82 is fixed with a base 85 for abutting against the slab. The lead screw 81 is rotatably installed in the fixed housing 80, and the lead screw nut 83 is fixedly installed in the sliding housing 82. The lead screw 81 and the lead screw nut 83 are rotatably connected. The rotation of the lead screw 81 can drive the sliding housing 82 to slide inside the fixed housing 80 through the lead screw nut 83 to realize the lifting and lowering of the base 85, thereby enabling the base 85 to abut against the slab. To obtain and precisely control the lifting position of the base 85, this application includes a position detection system comprising a rotating shaft 1, a first proximity switch 2, and a sensing plate mechanism 3. The rotating shaft 1 is connected to the lead screw 81 of the slab clamp positioning device 8 via a transmission mechanism 4, so that when the lead screw 81 of the slab clamp positioning device 8 rotates, the rotating shaft 1 can rotate synchronously (simultaneously) with it. The sensing plate mechanism 3 is fixedly mounted on the rotating shaft 1 and rotates with it. During the rotation of the sensing plate mechanism 3, the first proximity switch 2 is triggered, and the first proximity switch 2 receives a sensing signal. The sensing signal is transmitted to the controller of the slab clamp. The controller is generally a PLC controller. The controller can calculate the number of rotations of the rotating shaft 1 based on the sensing signal transmitted by the first proximity switch 2, and calculate the moving distance of the sliding box 82 (base 85) of the slab clamp positioning device 8 based on the rotation ratio of the rotating shaft 1 and the lead of the lead screw 81 and the lead screw nut, thereby obtaining the position of the base 85. Then, the controller controls the number of rotations of the lead screw based on the obtained data, realizing precise control of the position of the base 85, so that the slab clamp can clamp slabs of different numbers and thicknesses. Preferably, the first proximity switch 2 is a high and low temperature resistant proximity sensor. In this embodiment, the first proximity switch 2 is a DP-W series proximity sensor, which is an inductive sensor and can withstand a maximum temperature of up to 200°C, so that the slab clamp disclosed in this application can be used in high temperature environments. In this embodiment, the first proximity switch 2 is fixed on the fixed box 80 by an L-shaped support frame.

[0033] Furthermore, it also includes a position feedback mechanism 5 fixedly installed on the slab clamp positioning device 8. The position feedback mechanism 5 is used to detect the movement position of the sliding box 82 of the slab clamp positioning device 8 to obtain a position signal and transmit the position signal to the controller.

[0034] Specifically, in this embodiment, such as Figure 3 As shown, a position feedback mechanism 5 is also fixedly installed on the slab clamp positioning device 8. The position feedback mechanism 5 can detect the movement position of the sliding box 82 (base 85) of the slab clamp positioning device 8 to obtain a position signal, and transmit the position signal to the controller. The controller can calibrate the position information obtained by the position detection system (first proximity switch and induction plate mechanism) based on the position signal fed back by the position feedback mechanism. If the two position information are inconsistent, a warning can be issued so that the operator can perform maintenance or adjustment. In this application, the controller's calculation of the sliding box's movement distance based on the first proximity switch signal, the rotational speed ratio of the rotating shaft and the lead screw, and the lead screw and lead screw nut's lead, as well as the controller's calibration of the position signal from the position feedback mechanism with the position information obtained by the position detection system (first proximity switch and induction plate mechanism), are all conventional technical means in this field, and this application will not describe the specific processing process in detail.

[0035] Furthermore, the position feedback mechanism includes three second proximity switches 50, which are fixedly mounted on one side wall of the fixed housing 80 and arranged sequentially along the width direction.

[0036] Three sets of sensing blocks 51 are fixedly installed on the side wall of the sliding box 82. The three sets of sensing blocks 51 are respectively opposite to the positions of the three second proximity switches 50, so that when the sliding box 82 moves up and down, the three sets of sensing blocks 51 can sense the sensing signals of the base 85 at different positions with the three second proximity switches 50, and send the sensing signals to the controller. The controller can obtain the position of the base 85 according to the sensing signals.

[0037] Specifically, in this embodiment, such as Figure 3 and Figure 6As shown, three second proximity switches 50 are fixedly installed along the width direction on one side wall of the fixed housing 80; three sets of sensing blocks 51 are fixedly installed on the side wall of the sliding housing 82 at positions corresponding to the three second proximity switches 50. The first set of sensing blocks 51 includes two sensing blocks, and the second and third sets of sensing blocks 51 each include one sensing block. The two sensing blocks of the first set of sensing blocks 51 are located at the upper and lower ends of the sensing area of ​​the sliding housing 82, respectively (the top of the upper sensing block is aligned with the upper end of the sensing area, and the bottom of the lower sensing block is aligned with the lower end of the sensing area). Two sets of sensing blocks 51 are located at the upper end of the sensing area, with their tops aligned with the upper end of the sensing area. A third set of sensing blocks 51 is located at the lower end of the sensing area, with its bottom aligned with the lower end of the sensing area. The middle portion of the second and third sets of sensing blocks 51 forms an overlapping area of ​​a certain length. Through the arrangement of these sensing blocks 51, different sensing signals can be detected when the sliding housing 82 moves up and down. These different sensing signals correspond to different positions of the base 85, thus allowing the position of the base 85 to be obtained based on the sensing signals, thereby achieving feedback on the position of the base 85. Table 1 below shows the correspondence between the signals sensed by the three second proximity switches 50 and the positions of the base 85 in this application:

[0038] 1 to 3 represent second proximity switches 1, 2, and 3 respectively (1-3 are in the order from left to right in the diagram).

[0039] 1 to 3 pieces indicates the number of standard thickness slabs or slabs of corresponding thickness that can be clamped by the slab clamps;

[0040] Table 1. Comparison of Sensing Signals and Positioning

[0041]

[0042] As shown in Table 1, when using the slab clamp disclosed in this application to clamp a slab of standard thickness (or a slab of thickness corresponding to a standard thickness slab), the sliding housing 82 (base 85) needs to move towards...

[0043] The downward movement of 675mm, that is, when the sliding box 82 moves downward under the drive of the lead screw 81 until both the No. 1 and No. 2 second proximity switches sense the signal, it means that the base 85 has moved to the corresponding position.

[0044] When using the slab clamp disclosed in this application to clamp 1 to 2 slabs of the same thickness as the standard thickness slab, the sliding box 82 (base 85) needs to move downwards by a certain length between 675mm and 445mm. That is, when the sliding box 82 moves downwards under the drive of the lead screw 81 until only the second proximity switch 2 senses the signal, it means that the base 85 has moved to the corresponding position.

[0045] When using the slab clamp disclosed in this application to clamp two standard thickness slabs (or slabs of the corresponding thickness of two standard thickness slabs), the sliding box 82 (base 85) needs to move downward by 445mm. That is, when the sliding box 82 moves downward under the drive of the lead screw 81 until both the second proximity switch No. 2 and the second proximity switch No. 3 sense the signal, it means that the base 85 has moved to the corresponding position.

[0046] When using the slab clamp disclosed in this application to clamp 2 to 3 slabs of the same thickness as the standard thickness slabs, the sliding box 82 (base 85) needs to move downwards by a certain length between 445mm and 215mm. That is, when the sliding box 82 moves downwards under the drive of the lead screw 81 until only the No. 3 second proximity switch senses the signal, it means that the base 85 has moved to the corresponding position.

[0047] When using the slab clamp disclosed in this application to clamp three standard thickness slabs (or slabs of the corresponding thickness of three standard thickness slabs), the sliding box 82 (base 85) needs to move downward by 215mm. That is, when the sliding box 82 moves downward under the drive of the lead screw 81 until both the No. 1 and No. 3 second proximity switches sense the signal, it means that the base 85 has moved to the corresponding position.

[0048] This application utilizes three second proximity switches 50 to provide position feedback for five stations of the slab clamp positioning device, simplifying the structure and facilitating control. In this application, the length of each sensing block 51, the size of the sensing area, and the overlap length of the sensing blocks 51 can be specifically configured for the slab clamp. Furthermore, the number of second proximity switches 50 in the position feedback mechanism 5 can be four, five, or more, determined by the number of slabs the clamp needs to hold. For example, when there are four second proximity switches 50, they can be encoded using 8421 code. This encoding assigns each data point to a station, and the corresponding sensing blocks 51 are adjusted accordingly so that they can sense the corresponding code when the sliding housing 82 moves up and down. Using combined codes to correspond to different stations is common practice in engineering and will not be described in detail here. In this application, a position feedback mechanism 5 is provided, which can provide feedback on the five positions of the sliding box 82 (base 85). The position feedback mechanism 5 then provides feedback on the corresponding positions, so that the controller can calibrate the position of the position detection system based on the position information.

[0049] Furthermore, the transmission mechanism 4 includes a first gear 40, a second gear 41, and a connecting flange 42;

[0050] The first gear 40 is fixedly installed at the end of the rotating shaft 1, and the second gear 41 and the connecting flange 42 are fixedly installed at the end of the lead screw 81;

[0051] The first gear 40 meshes with the second gear 41, the second gear 41 is fixedly connected to the connecting flange 42, and the connecting flange 42 is fixedly connected to the lead screw 81.

[0052] Specifically, in this embodiment, such as Figure 2 As shown, the transmission mechanism 4 includes a first gear 40, a second gear 41, and a connecting flange 42. The first gear 40 is installed at the end of the rotating shaft 1 via a key and a locking nut. The second gear 41 and the connecting flange 42 are fitted onto the end of the lead screw 81, and the connecting flange 42 is fixedly connected to the end of the lead screw 81 via a pin. The second gear 41 is installed on one side of the connecting flange 42, and the connecting flange 42 and the second gear 41 are fixedly connected by bolts. The lead screw 81 is installed in the fixed housing 80 via a fixed sleeve 86. A bearing is provided between the second gear 41 and the fixed sleeve 86. The first gear 40 and the second gear 41 mesh. The rotation of the rotating shaft 1 can drive the first gear 40 to rotate, and the first gear 40 can drive the second gear 41 to rotate. The rotation of the second gear 41 will drive the connecting flange 42 to rotate, thereby driving the lead screw 81 to rotate through the connecting flange 42. Preferably, the transmission ratio between the first gear and the second gear is 1:3 to 1:4, which can improve the detection accuracy and thus accurately control the movement of the slab clamp positioning device (sliding box 82), so that the base 85 can accurately abut against the slab.

[0053] Furthermore, a bevel gear set 6 is provided at the lower end of the rotating shaft 1, and the rotating shaft 1 is connected to the output shaft of the drive device of the slab clamp positioning device 8 through the bevel gear set 6;

[0054] The drive device of the slab clamp positioning device 8 drives the lead screw 81 to rotate through the bevel gear set 6, the rotating shaft 1 and the transmission mechanism 4.

[0055] Specifically, in this embodiment, such as Figure 2As shown, a bevel gear set 6 is also provided at the lower end of the rotating shaft 1. The bevel gear set 6 includes a first bevel gear 60, a second bevel gear 61, and a bevel gear shaft 62. The first bevel gear 60 is fixedly installed at the lower end of the rotating shaft 1, and the second bevel gear 61 is fixedly installed on the bevel gear shaft 62. The first bevel gear 60 and the second bevel gear 61 mesh with each other. One end of the bevel gear shaft 62 is connected to the output end of the drive device of the slab clamp positioning device 8 through a coupling. The drive device of the slab clamp positioning device 8 includes a drive motor (or hydraulic motor) and a reducer. The output shaft of the drive motor (hydraulic motor) is connected to the input shaft of the reducer. The output shaft of the reducer is connected to one end of the bevel gear shaft 62 through a coupling. The drive motor (hydraulic motor) and the reducer are installed on the box beam (crossbeam) of the slab clamp. The drive device can drive the lead screw 81 to rotate through the bevel gear set 6, the rotating shaft 1, and the transmission mechanism 4, and then drive the sliding box 82 to move up and down through the rotation of the lead screw 81. This application, by setting a bevel gear set 6 at the lower end of the rotating shaft 1, facilitates the placement of the drive device, allowing it to be directly mounted on the box girder of the slab clamp. Furthermore, by setting the bevel gear set 6 at the lower end of the rotating shaft 1, the input ends of the bevel gear shafts of the two sets of slab clamp positioning devices on the box girder are positioned opposite each other. Thus, when the reducer adopts a single-input dual-output reducer structure, the two output shafts of the reducer can be connected to the bevel gear shafts of the two sets of slab clamp positioning devices respectively. This achieves synchronous driving of the two sets of slab clamp positioning devices by a single drive device, reducing the number of drive devices to lower costs while ensuring synchronous movement of the two sets of slab clamp positioning devices. This guarantees the positioning accuracy of the two sets of slab clamp positioning devices, enabling precise clamping of the slab.

[0056] Furthermore, the sensing element mechanism 3 includes a sensing element sleeve 30 and two sensing elements 31 symmetrically arranged on the outer wall of the sensing element sleeve 30; the sensing element sleeve 30 can be sleeved on the rotating shaft 1 and fixed by a pin.

[0057] Specifically, in this embodiment, such as Figure 5As shown, the sensing element mechanism 3 includes a sensing element sleeve 30, which can be fitted onto the rotating shaft 1. The rotating shaft 1 has a pin hole 10 arranged in a radial direction. The sensing element sleeve 30 has two through holes symmetrically arranged. After the sensing element sleeve 30 is fitted onto the rotating shaft 1, it can be fixed onto the rotating shaft 1 by a pin. Two sensing elements 31 are symmetrically arranged on the outer wall of the sensing element sleeve 30. The sensing elements are preferably made of iron sheets to facilitate the proximity switch to sense the signal. When the sensing element mechanism 3 rotates with the rotating shaft 1, the sensing elements 31 can periodically interact with the first proximity switch 2, thereby causing the first proximity switch 2 to generate a sensing signal and send the sensing signal to the controller. In this embodiment, since two sensing plates 31 are provided on the outer wall of the sensing plate sleeve 30, when the sensing plate mechanism 3 rotates one revolution with the rotating shaft 1, the first proximity switch 2 will be triggered twice, that is, two high levels and two low levels will be generated, and four level signals will be transmitted to the controller. The controller can calculate the number of revolutions of the rotating shaft 1 based on the number of levels obtained, and then obtain the number of revolutions of the lead screw 81. The moving distance of the sliding box 82 can be obtained from the number of revolutions of the lead screw 81 and the lead. In other words, the precise control of the movement position of the sliding box 82 can be achieved through the sensing plate mechanism 3 and the proximity switch.

[0058] Furthermore, it also includes a protective cover 7 fixedly mounted on the fixed housing 80 of the slab clamp positioning device 8, and the rotating shaft 1, the first proximity switch 2 and the sensing plate mechanism 3 are disposed inside the protective cover 7.

[0059] Specifically, in this embodiment, a protective cover 7 is fixedly provided outside the fixed housing 80 of the slab clamp positioning device 8. The rotating shaft 1, the first proximity switch 2, the sensing plate mechanism 3, and the bevel gear set 6 are all placed inside the protective cover 7. The bevel gear shaft 62 of the bevel gear set 6 is mounted on the protective cover 7 through bearings, and one end extends out of the protective cover 7 and is connected to the drive device of the slab clamp positioning device through a coupling or other components. Specifically, one end of the bevel gear shaft 62 is connected to the output shaft of the reducer through a coupling. By setting the protective cover 7, the proximity switch, the sensing plate mechanism 3, and the bevel gear set 6 can be effectively protected, preventing dust and other impurities from entering and affecting the working performance and service life of each component. At the same time, it can provide a certain degree of heat insulation and improve the service life of the proximity switch.

[0060] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-temperature resistant position detection system for a slab clamp positioning device, characterized in that, include: Rotating shaft, first proximity switch, and sensing plate mechanism; The rotating shaft is rotatably mounted on the fixed housing of the slab clamp positioning device, and one end of the rotating shaft is fixedly provided with a transmission mechanism connected to the lead screw of the slab clamp positioning device. The transmission mechanism is used to drive the rotating shaft to rotate synchronously with the lead screw. The sensing plate mechanism is fixedly mounted on the rotating shaft, and the rotating shaft can drive the sensing plate mechanism to rotate together; The first proximity switch is fixedly installed on the fixed housing of the slab clamp positioning device, and is used to detect the sensing plate mechanism during the rotation of the sensing plate mechanism with the rotating shaft to obtain a sensing signal, and transmit the sensing signal to the controller.

2. The high-temperature resistant position detection system of the slab clamp positioning device according to claim 1, characterized in that: It also includes a position feedback mechanism fixedly installed on the slab clamp positioning device. The position feedback mechanism is used to detect the movement position of the sliding box of the slab clamp positioning device to obtain a position signal and transmit the position signal to the controller.

3. The high-temperature resistant position detection system of the slab clamp positioning device according to claim 2, characterized in that: The position feedback mechanism includes three second proximity switches, which are fixedly mounted on one side wall of the fixed housing and arranged sequentially along the width direction. Three sets of sensing blocks are fixed on the side wall of the sliding box. The three sets of sensing blocks are respectively opposite to the positions of three second proximity switches, so that when the sliding box moves up and down, the three sets of sensing blocks can sense the sensing signals of the base at different positions with the three second proximity switches and send the sensing signals to the controller.

4. The high-temperature resistant position detection system of the slab clamp positioning device according to claim 1, characterized in that: The transmission mechanism includes a first gear, a second gear, and a connecting flange; The first gear is fixedly installed at the end of the rotating shaft, and the second gear and the connecting flange are fixedly installed at the end of the lead screw; The first gear meshes with the second gear, the second gear is fixedly connected to the connecting flange, and the connecting flange is fixedly connected to the lead screw.

5. The high-temperature resistant position detection system of the slab clamp positioning device according to claim 4, characterized in that: The lower end of the rotating shaft is also provided with a bevel gear set, and the rotating shaft is connected to the output shaft of the drive device of the slab clamp positioning device through the bevel gear set; The drive unit of the slab clamp positioning device drives the lead screw to rotate through the bevel gear set, the rotating shaft, and the transmission mechanism.

6. The high-temperature resistant position detection system of the slab clamp positioning device according to claim 1, characterized in that: The sensing element mechanism includes a sensing element sleeve and two sensing elements symmetrically arranged on the outer wall of the sensing element sleeve; the sensing element sleeve can be fitted onto the rotating shaft and fixed by a pin.

7. The high-temperature resistant position detection system of the slab clamp positioning device according to claim 1, characterized in that: It also includes a protective cover fixedly mounted on the fixed housing of the slab clamp positioning device, and the rotating shaft, the first proximity switch and the sensing plate mechanism are disposed inside the protective cover.

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