Device for measuring transverse thickness difference of cold-roll steel sheet

Abstract

The utility model provides a cold-roll steel sheet transverse thickness difference measuring device, and relates to the technical field of steel sheet thickness measurement, the cold-roll steel sheet transverse thickness difference measuring device comprises a box body with a top opening, a steel sheet, a first mounting plate, a second mounting plate, an X-ray measuring assembly, a first driving assembly and a second driving assembly, the first mounting plate and the second mounting plate are arranged on the two sides of the upper end of the box body respectively, the first driving assembly is used for driving the first mounting plate and the second mounting plate to move back and forth along the box body, and clamping assemblies are arranged on the first mounting plate and the second mounting plate in a sliding mode; the device can reduce the labor intensity of workers, and improves the working efficiency and measurement precision of steel plate transverse thickness difference measurement. Through the arrangement of the clamping assembly, the steel plate is stably placed, the measurement precision is guaranteed, the clamping assembly is arranged in a sliding mode, the clamping position of the clamping assembly can be rapidly changed in a sliding mode according to the actual use requirement, and the clamping assembly is prevented from affecting the measurement work of the X-ray measurement assembly.

Description

Technical Field

[0001] The present application relates to the technical field of steel plate thickness measurement, and in particular to a device for measuring the transverse thickness difference of a cold-rolled steel plate. Background Art

[0002] Thickness control of cold-rolled steel plates is a key technology in the field of plate rolling. Plate thickness is an important control indicator in plate and strip rolling production. On the one hand, this parameter reflects the transverse thickness difference of the rolled piece during the production process. On the other hand, it directly affects the plate shape state and roller shape control target of the rolled piece, and plays a decisive role in the stability of the production process and product quality control. At present, contact measurement methods such as vernier calipers and micrometers are mostly used to measure the transverse thickness of plate and strip samples, which has high labor intensity, low work efficiency and low measurement accuracy. Summary of the invention

[0003] The purpose of the embodiment of the present application is to provide a device for measuring the transverse thickness difference of a cold-rolled steel plate, which can solve the technical problems of high labor intensity, low work efficiency and low measurement accuracy in the current transverse thickness measurement of cold-rolled steel plates.

[0004] The embodiment of the present application provides a device for measuring the transverse thickness difference of a cold-rolled steel plate, comprising a box body with an opening at the top, a steel plate, a first mounting plate, a second mounting plate, an X-ray measurement assembly, a first driving assembly, and a second driving assembly, wherein the first mounting plate and the second mounting plate are respectively arranged on both sides of the upper end of the box body, the first driving assembly is used to drive the first mounting plate and the second mounting plate to move forward and backward along the box body, a clamping assembly is slidably arranged on the first mounting plate and the second mounting plate, the steel plate is located above the box body, and the clamping assembly is used to clamp and fix the steel plate;

[0005] The X-ray measurement assembly includes a transmitter, a receiver, a controller and a display. The transmitter is located below the steel plate, and the receiver is located above the steel plate. The second driving assembly is used to drive the transmitter and the receiver to move left and right along the box synchronously. The controller and the display are both arranged on the box, and the transmitter, the receiver and the display are all electrically connected to the controller.

[0006] Among them, the first driving component includes a first motor, a first screw, a first screw sleeve, a sliding rod, a sliding sleeve and a connecting rod. The first screw is rotatably arranged at the upper end of the box body through a bearing, and the first motor drives the first screw to rotate. The first screw sleeve is threadedly sleeved on the first screw, and the first screw sleeve is fixedly connected to the first mounting plate. The sliding rod is fixedly arranged at the upper end of the box body, the sliding sleeve is slidably sleeved on the sliding rod, and the sliding sleeve is fixedly connected to the second mounting plate, and the connecting rod is fixedly arranged between the first mounting plate and the second mounting plate.

[0007] Wherein, the second driving assembly includes a mounting frame, a second screw, a third screw, a second screw sleeve, a third screw sleeve, a first gear, a second gear, a second motor, a rotating shaft, a driving gear, a first driven gear and a second driven gear, the mounting frame is located on the outside of the box body, a first limiting slide groove is provided on the mounting frame, the second screw is rotatably arranged in the first limiting slide groove through a bearing, the second screw sleeve is threadedly sleeved on the second screw, and the second screw sleeve is limitedly slidably connected with the first limiting slide groove, the receiver is fixedly connected with the second screw sleeve, the first gear is fixedly arranged on the second screw, a second limiting slide groove is provided in the box body, and the third screw is rotatably arranged through a bearing In the second limiting sliding groove, the third screw sleeve is threadedly sleeved on the third screw rod, and the third screw sleeve is limitedly slidably connected to the second limiting sliding groove, the launcher is fixedly connected to the third screw sleeve, the second gear is fixedly set on the third screw rod, the rotating shaft is rotatably set on the mounting frame through a bearing, the second motor drives the driving gear to rotate through the rotating shaft, the first driven gear and the second driven gear are both rotatably set on the mounting frame through bearings, and the first driven gear and the second driven gear are both meshed and connected with the driving gear, the first gear is meshed and connected with the first driven gear, and the second gear is meshed and connected with the second driven gear.

[0008] Among them, the clamping assembly includes a first clamping plate, a second clamping plate, a slider, a spring and a handle, the first mounting plate and the second mounting plate are both provided with a first guide rail, the first clamping plate is slidably set on the first guide rail, the slider is fixedly set on the first clamping plate, the second clamping plate is slidably sleeved on the slider, the spring is sleeved on the slider, and the spring is pre-stressed between the first clamping plate and the second clamping plate, the handle is fixedly set on the second clamping plate, and the steel plate is located between the first clamping plate and the second clamping plate.

[0009] Wherein, one end of the first clamping plate close to the second clamping plate and one end of the second clamping plate close to the first clamping plate are both provided with rubber pads.

[0010] Wherein, a second guide rail is arranged at the upper end of the box body, and the first mounting plate and the second mounting plate are both slidably arranged on the second guide rail.

[0011] Beneficial effects of the utility model:

[0012] The utility model provides a device for measuring the transverse thickness difference of a cold-rolled steel plate. When in use, the steel plate to be measured is clamped and fixed on the top of a box body by a clamping component, the thickness of the steel plate is measured by an X-ray measuring component, and at the same time, the transmitter and the receiver are driven to move synchronously left and right along the box body by a second driving component, so that the transverse thickness difference of the steel plate can be measured, and then the first driving component drives the first mounting plate and the second mounting plate to move forward and backward along the box body, thereby driving the steel plate to move forward and backward, so that the transverse thickness difference of the steel plate at different positions can be measured; the device can reduce the labor intensity of the staff, and improve the work efficiency and measurement accuracy of the transverse thickness difference measurement of the steel plate; by setting the clamping component, the steel plate can be stably placed to ensure the measurement accuracy, and the clamping component is a sliding setting, and the clamping position of the clamping component can be quickly slid to change according to actual use requirements, so as to prevent the clamping component from affecting the measurement work of the X-ray measuring component. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of a front cross-sectional structure in some embodiments of the present application;

[0015] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at point A;

[0016] Figure 3 This is a schematic diagram of the top view of the box body in some embodiments of the present application.

[0017] The reference numerals are:

[0018] 1. Box body; 11. Second guide rail;

[0019] 2. Steel plate;

[0020] 3. First mounting plate; 31. First guide rail;

[0021] 4. Second mounting plate;

[0022] 6. X-ray measurement component; 61. transmitter; 62. receiver; 63. controller; 64. display;

[0023] 7. First drive assembly; 71. First motor; 72. First screw rod; 73. First screw sleeve; 74. Sliding rod; 75. Sliding sleeve; 76. Connecting rod;

[0024] 8. Second driving assembly; 81. Mounting frame; 82. Second screw rod; 83. Third screw rod; 84. Second screw sleeve; 85. Third screw sleeve; 86. First gear; 87. Second gear; 88. Second motor; 89. Rotating shaft; 810. Driving gear; 811. First driven gear; 812. Second driven gear; 813. First limiting slide groove; 814. Second limiting slide groove;

[0025] 9. Clamping assembly; 91. First clamping plate; 92. Second clamping plate; 93. Slider; 94. Spring; 95. Handle; 96. Rubber pad. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] like Figures 1 to 3 As shown, the embodiment of the present application provides a device for measuring the transverse thickness difference of a cold-rolled steel plate, comprising a box body 1 with an opening at the top, a steel plate 2, a first mounting plate 3, a second mounting plate 4, an X-ray measurement assembly 6, a first driving assembly 7, and a second driving assembly 8. The first mounting plate 3 and the second mounting plate 4 are respectively arranged on both sides of the upper end of the box body 1. The first driving assembly 7 is used to drive the first mounting plate 3 and the second mounting plate 4 to move forward and backward along the box body 1. A clamping assembly 9 is slidably arranged on the first mounting plate 3 and the second mounting plate 4. The steel plate 2 is located above the box body 1, and the clamping assembly 9 is used to clamp and fix the steel plate 2.

[0033] The X-ray measurement component 6 includes a transmitter 61, a receiver 62, a controller 63 and a display 64. The transmitter 61 is located below the steel plate 2, and the receiver 62 is located above the steel plate 2. The second driving component 8 is used to drive the transmitter 61 and the receiver 62 to move left and right along the box 1 synchronously. The controller 63 and the display 64 are all arranged on the box 1, and the transmitter 61, the receiver 62, and the display 64 are all electrically connected to the controller 63.

[0034] When in use, the steel plate 2 to be measured is clamped and fixed on the top of the box body 1 by the clamping assembly 9, and the thickness of the steel plate 2 is measured by the X-ray measurement assembly 6. At the same time, the transmitter 61 and the receiver 62 are driven by the second driving assembly 8 to move synchronously left and right along the box body 1, so that the transverse thickness difference of the steel plate 2 can be measured. Subsequently, the first mounting plate 3 and the second mounting plate 4 are driven by the first driving assembly 7 to move forward and backward along the box body 1, thereby driving the steel plate 2 to move forward and backward, and the transverse thickness difference of the steel plate 2 at different positions can be measured; the device can reduce the labor intensity of the staff and improve the work efficiency and measurement accuracy of the transverse thickness difference measurement of the steel plate 2; by setting the clamping assembly 9, the steel plate 2 is stably placed to ensure the measurement accuracy, and the clamping assembly 9 is a sliding setting, and the clamping position of the clamping assembly 9 can be quickly slid to change according to actual use requirements to prevent the clamping assembly 9 from affecting the measurement work of the X-ray measurement assembly 6.

[0035] The X-ray measuring component 6 performs conversion measurement based on the intensity attenuation of the X-ray when it penetrates the object to be measured. When the X-ray measuring component 6 is working, the transmitter 61 emits X-rays that penetrate the steel plate 2 and are received by the receiver 62. The receiver 62 obtains the amount of X-rays absorbed by the steel plate 2 based on the energy value of the received X-rays, thereby obtaining the thickness data of the steel plate 2. The receiver 62 transmits the signal to the controller 63, and the controller 63 intuitively displays the thickness data of the steel plate 2 to the staff through the display 64.

[0036] like Figures 1 to 3 As shown, in this embodiment, the first driving component 7 includes a first motor 71, a first screw 72, a first screw sleeve 73, a sliding rod 74, a sliding sleeve 75 and a connecting rod 76. The first screw 72 is rotatably arranged at the upper end of the housing 1 through a bearing, and the first motor 71 drives the first screw 72 to rotate. The first screw sleeve 73 is threadedly sleeved on the first screw 72, and the first screw sleeve 73 is fixedly connected to the first mounting plate 3. The sliding rod 74 is fixedly arranged at the upper end of the housing 1, the sliding sleeve 75 is slidably sleeved on the sliding rod 74, and the sliding sleeve 75 is fixedly connected to the second mounting plate 4, and the connecting rod 76 is fixedly arranged between the first mounting plate 3 and the second mounting plate 4.

[0037] When in use, turn on the first motor 71 to drive the first screw 72 to rotate, the first screw 72 drives the first screw sleeve 73 to move, the first screw sleeve 73 drives the first mounting plate 3 to move, the first mounting plate 3 drives the connecting rod 76 to move, the connecting rod 76 drives the second mounting plate 4 to move, the first mounting plate 3 and the second mounting plate 4 drive the clamping assembly 9 to move, thereby driving the steel plate 2 clamped and fixed by the clamping assembly 9 to move forward and backward along the box body 1, so that the lateral thickness difference of the steel plate 2 at different positions can be measured.

[0038] The sliding sleeve 75 cooperates with the sliding rod 74 to guide and limit the first mounting plate 3 and the second mounting plate 4 .

[0039] like Figures 1 to 3 As shown, in this embodiment, the second driving assembly 8 includes a mounting frame 81, a second screw rod 82, a third screw rod 83, a second screw sleeve 84, a third screw sleeve 85, a first gear 86, a second gear 87, a second motor 88, a rotating shaft 89, a driving gear 810, a first driven gear 811 and a second driven gear 812. The mounting frame 81 is located on the outside of the box body 1, and a first limiting slide groove 813 is provided on the mounting frame 81. The second screw rod 82 is rotatably arranged in the first limiting slide groove 813 through a bearing. The second screw sleeve 84 is threadedly sleeved on the second screw rod 82, and the second screw sleeve 84 is limitedly slidably connected with the first limiting slide groove 813. The receiver 62 is fixedly connected to the second screw sleeve 84. The first gear 86 is fixedly arranged on the second screw rod 82. A second limiting slide groove 814 is provided in the box body 1. The third screw rod 83 is rotatably arranged in the second limiting sliding groove 814 through a bearing, the third screw sleeve 85 is threadedly sleeved on the third screw rod 83, and the third screw sleeve 85 is limitedly slidably connected to the second limiting sliding groove 814, the launcher 61 is fixedly connected to the third screw sleeve 85, the second gear 87 is fixedly arranged on the third screw rod 83, the rotating shaft 89 is rotatably arranged on the mounting frame 81 through a bearing, the second motor 88 drives the driving gear 810 to rotate through the rotating shaft 89, the first driven gear 811 and the second driven gear 812 are both rotatably arranged on the mounting frame 81 through bearings, and the first driven gear 811 and the second driven gear 812 are both meshed and connected with the driving gear 810, the first gear 86 is meshed and connected with the first driven gear 811, and the second gear 87 is meshed and connected with the second driven gear 812.

[0040] When in use, turn on the second motor 88 to drive the rotating shaft 89 to rotate, the rotating shaft 89 drives the driving gear 810 to rotate, the driving gear 810 drives the first driven gear 811 to rotate, the first driven gear 811 drives the first gear 86 to rotate, the first gear 86 drives the second screw 82 to rotate, the second screw 82 drives the second screw sleeve 84 to move, and the second screw sleeve 84 drives the receiver 62 to move; the driving gear 810 synchronously drives the second driven gear 812 to rotate, the second driven gear 812 drives the second gear 87 to rotate, the second gear 87 drives the third screw 83 to rotate, the third screw 83 drives the third screw sleeve 85 to move, and the third screw sleeve 85 drives the transmitter 61 to move, so that the transmitter 61 and the receiver 62 can move left and right along the box body 1 synchronously, and the lateral thickness difference of the steel plate 2 can be measured.

[0041] like Figures 1 to 3As shown, in this embodiment, the clamping assembly 9 includes a first clamping plate 91, a second clamping plate 92, a slider 93, a spring 94 and a handle 95. The first guide rail 31 is provided on the first mounting plate 3 and the second mounting plate 4. The first clamping plate 91 is slidably provided on the first guide rail 31. The slider 93 is fixedly provided on the first clamping plate 91. The second clamping plate 92 is slidably sleeved on the slider 93. The spring 94 is sleeved on the slider 93, and the spring 94 is pre-stressed between the first clamping plate 91 and the second clamping plate 92. The handle 95 is fixedly provided on the second clamping plate 92. The steel plate 2 is located between the first clamping plate 91 and the second clamping plate 92.

[0042] When in use, the handle 95 is pulled upward to drive the second clamping plate 92 away from the first clamping plate 91. At this time, the spring 94 is stretched, and the steel plate 2 to be measured is placed between the first clamping plate 91 and the second clamping plate 92. Then the handle 95 is released. Under the elastic force of the spring 94, the second clamping plate 92 descends and presses against the steel plate 2. The first clamping plate 91 and the second clamping plate 92 can fix the steel plate 2 on the top of the box body 1. By setting the clamping assembly 9, the steel plate 2 can be stably placed to ensure the measurement accuracy.

[0043] In order to prevent the clamping assembly 9 from affecting the measurement work of the X-ray measurement assembly 6, when the clamping position of the clamping assembly 9 needs to be changed, the handle 95 is pulled upward to drive the second clamping plate 92 away from the first clamping plate 91, thereby releasing the clamping fixation of the steel plate 2. At this time, the spring 94 is stretched, and then the clamping assembly 9 is slid along the first guide rail 31 to the target position, and the handle 95 is released. Under the elastic force of the spring 94, the second clamping plate 92 descends and presses against the steel plate 2, and the first clamping plate 91 and the second clamping plate 92 can clamp and fix the steel plate 2 again, so that the clamping position of the clamping assembly 9 can be quickly changed by sliding according to actual usage requirements.

[0044] like Figure 2 As shown, in this embodiment, a rubber pad 96 is provided at one end of the first clamping plate 91 close to the second clamping plate 92 and at one end of the second clamping plate 92 close to the first clamping plate 91; the rubber pad 96 helps to prevent the first clamping plate 91 or the second clamping plate 92 from scratching the steel plate 2, thereby ensuring the quality of the steel plate 2.

[0045] like Figures 1 to 3 As shown, in this embodiment, a second guide rail 11 is provided at the upper end of the box body 1, and the first mounting plate 3 and the second mounting plate 4 are both slidably provided on the second guide rail 11; the cooperation between the first mounting plate 3 and the second guide rail 11 makes the first mounting plate 3 more stable and smooth when moving, and the cooperation between the second mounting plate 4 and the second guide rail 11 makes the second mounting plate 4 more stable and smooth when moving, thereby improving the stability of use.

[0046] Working principle: When the cold-rolled steel plate transverse thickness difference measuring device provided by the present application is used, the handle 95 is pulled upward to drive the second clamping plate 92 away from the first clamping plate 91. At this time, the spring 94 is stretched, and the steel plate 2 to be measured is placed between the first clamping plate 91 and the second clamping plate 92. Then the handle 95 is released. Under the elastic force of the spring 94, the second clamping plate 92 descends and presses against the steel plate 2. The first clamping plate 91 and the second clamping plate 92 can fix the steel plate 2 on the top of the box body 1. The thickness of the steel plate 2 is measured by the X-ray measurement component 6, and the second motor 88 is turned on to drive the rotating shaft 89 to rotate. The rotating shaft 89 drives the driving gear 810 to rotate, the driving gear 810 drives the first driven gear 811 to rotate, the first driven gear 811 drives the first gear 86 to rotate, the first gear 86 drives the second screw 82 to rotate, the second screw 82 drives the second screw sleeve 84 to move, and the second screw sleeve 84 drives the receiver 62 to move; the driving gear 810 synchronously drives the second driven gear 812 to rotate, the second driven gear 812 drives the second gear 87 to rotate, the second gear 87 drives the third screw 83 to rotate, the third screw 83 drives the third screw sleeve 85 to move, and the third screw sleeve 85 drives the transmitter 61 to move, By realizing that the transmitter 61 and the receiver 62 are synchronously moved left and right along the box body 1, the lateral thickness difference of the steel plate 2 can be measured; then the first motor 71 is turned on to drive the first screw rod 72 to rotate, the first screw rod 72 drives the first screw sleeve 73 to move, the first screw sleeve 73 drives the first mounting plate 3 to move, the first mounting plate 3 drives the connecting rod 76 to move, the connecting rod 76 drives the second mounting plate 4 to move, the first mounting plate 3 and the second mounting plate 4 drive the clamping assembly 9 to move, thereby driving the steel plate 2 clamped and fixed by the clamping assembly 9 to move forward and backward along the box body 1, and the lateral thickness difference of different positions of the steel plate 2 can be measured; in order to prevent To prevent the clamping assembly 9 from affecting the measuring work of the X-ray measuring assembly 6, when the clamping position of the clamping assembly 9 needs to be changed, pull the handle 95 upward to drive the second clamping plate 92 away from the first clamping plate 91, and release the clamping fixation of the steel plate 2. At this time, the spring 94 is stretched, and then the clamping assembly 9 is slid along the first guide rail 31 to the target position, and the handle 95 is released. Under the elastic force of the spring 94, the second clamping plate 92 descends and presses against the steel plate 2, and the first clamping plate 91 and the second clamping plate 92 can clamp and fix the steel plate 2 again, so that the clamping position of the clamping assembly 9 can be quickly changed by sliding according to actual usage requirements.

[0047] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for measuring the transverse thickness difference of a cold-rolled steel plate, characterized in that: The invention comprises a box body (1) with an opening at the top, a steel plate (2), a first mounting plate (3), a second mounting plate (4), an X-ray measurement component (6), a first driving component (7) and a second driving component (8), wherein the first mounting plate (3) and the second mounting plate (4) are respectively arranged on both sides of the upper end of the box body (1), the first driving component (7) is used to drive the first mounting plate (3) and the second mounting plate (4) to move forward and backward along the box body (1), a clamping component (9) is slidably arranged on the first mounting plate (3) and the second mounting plate (4), the steel plate (2) is located above the box body (1), and the clamping component (9) is used to clamp and fix the steel plate (2); The X-ray measurement component (6) comprises a transmitter (61), a receiver (62), a controller (63) and a display (64); the transmitter (61) is located below the steel plate (2); the receiver (62) is located above the steel plate (2); the second driving component (8) is used to drive the transmitter (61) and the receiver (62) to move synchronously along the box (1) to the left and right; the controller (63) and the display (64) are both arranged on the box (1); and the transmitter (61), the receiver (62) and the display (64) are all electrically connected to the controller (63).

2. The device for measuring transverse thickness difference of cold-rolled steel plate according to claim 1, characterized in that: The first driving assembly (7) comprises a first motor (71), a first screw rod (72), a first screw sleeve (73), a sliding rod (74), a sliding sleeve (75) and a connecting rod (76); the first screw rod (72) is rotatably arranged at the upper end of the housing (1) via a bearing; the first motor (71) drives the first screw rod (72) to rotate; the first screw sleeve (73) is threadedly sleeved on the first screw rod (72), and the first screw sleeve (73) is fixedly connected to the first mounting plate (3); the sliding rod (74) is fixedly arranged at the upper end of the housing (1); the sliding sleeve (75) is slidably sleeved on the sliding rod (74), and the sliding sleeve (75) is fixedly connected to the second mounting plate (4); and the connecting rod (76) is fixedly arranged between the first mounting plate (3) and the second mounting plate (4).

3. The device for measuring transverse thickness difference of cold-rolled steel plate according to claim 1, characterized in that: The second driving assembly (8) comprises a mounting frame (81), a second screw rod (82), a third screw rod (83), a second screw sleeve (84), a third screw sleeve (85), a first gear (86), a second gear (87), a second motor (88), a rotating shaft (89), a driving gear (810), a first driven gear (811) and a second driven gear (812), wherein the mounting frame (81) is located outside the box body (1), a first limiting sliding groove (813) is provided on the mounting frame (81), and the first The second screw (82) is rotatably arranged in the first limiting sliding groove (813) through a bearing, the second screw sleeve (84) is threadedly sleeved on the second screw (82), and the second screw sleeve (84) is slidingly connected to the first limiting sliding groove (813), the receiver (62) is fixedly connected to the second screw sleeve (84), the first gear (86) is fixedly arranged on the second screw (82), the second limiting sliding groove (814) is opened in the box body (1), and the third screw (83) The third screw sleeve (85) is threadedly sleeved on the third screw rod (83), and the third screw sleeve (85) is slidingly connected to the second limiting slide groove (814). The launcher (61) is fixedly connected to the third screw sleeve (85). The second gear (87) is fixedly arranged on the third screw rod (83). The rotating shaft (89) is rotatably arranged on the mounting frame (81) through the bearing. The second motor (88) is driven by the drive shaft (89) to rotate on the mounting frame (81). The rotating shaft (89) drives the driving gear (810) to rotate. The first driven gear (811) and the second driven gear (812) are both rotatably arranged on the mounting frame (81) via bearings. The first driven gear (811) and the second driven gear (812) are both meshedly connected with the driving gear (810). The first gear (86) is meshedly connected with the first driven gear (811), and the second gear (87) is meshedly connected with the second driven gear (812).

4. The device for measuring transverse thickness difference of cold-rolled steel plate according to claim 1, characterized in that: The clamping assembly (9) comprises a first clamping plate (91), a second clamping plate (92), a slider (93), a spring (94) and a handle (95). The first mounting plate (3) and the second mounting plate (4) are both provided with a first guide rail (31). The first clamping plate (91) is slidably arranged on the first guide rail (31). The slider (93) is fixedly arranged on the first clamping plate (91). The second clamping plate (92) is slidably sleeved on the slider (93). The spring (94) is sleeved on the slider (93), and the spring (94) is pre-stressed between the first clamping plate (91) and the second clamping plate (92). The handle (95) is fixedly arranged on the second clamping plate (92). The steel plate (2) is located between the first clamping plate (91) and the second clamping plate (92).

5. The device for measuring transverse thickness difference of cold-rolled steel plate according to claim 4, characterized in that: One end of the first clamping plate (91) close to the second clamping plate (92) and one end of the second clamping plate (92) close to the first clamping plate (91) are both provided with rubber pads (96).

6. The device for measuring transverse thickness difference of cold-rolled steel plate according to claim 1, characterized in that: A second guide rail (11) is provided at the upper end of the box body (1), and the first mounting plate (3) and the second mounting plate (4) are both slidably arranged on the second guide rail (11).

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