Movable tail gripper device

Abstract

The application relates to the technical field of steel production, and discloses a movable tail clamping device, which comprises a fixed base, a locking mechanism and a transverse driving mechanism arranged on the fixed base, a movable base movably arranged on the fixed base and driven by the transverse driving mechanism to move along a preset track, and a tail clamping body arranged on the movable base and capable of moving together with the movable base. The movable base comprises a seat body, a bottom sliding plate arranged on the bottom surface of the seat body and a side sliding plate arranged on the side surface of the seat body, and the bottom sliding plate and the side sliding plate are used for realizing movement guidance. The movable tail clamping device is used for a high-speed bar production line. When the tail clamping device is maintained and the roller is replaced, the tail clamping device can be moved along the vertical rolling center line direction, the operation space is greatly increased, the problems of inconvenient operation and long time are effectively solved, the operation efficiency of the production line is improved, and the production cost and the labor intensity are reduced.

Description

Technical Field

[0001] This application relates to the field of steel production technology, and more specifically, to a movable tail clamp device. Background Technology

[0002] Currently, there is a significant market demand for small-diameter bar products. Small-diameter rebar typically accounts for more than half of the total output of rolling mills, and its main production process is slitting rolling. Compared with traditional slitting rolling, high-speed bar production lines offer advantages such as faster rolling speeds, higher dimensional accuracy of finished products, better bar performance, superior surface quality, and more accurate and rapid braking. Therefore, in recent years, major steel mills have been building new lines or upgrading existing slitting rolling lines to high-speed bar production lines.

[0003] As a core piece of equipment in high-speed bar production lines, the tail clamp is responsible for quickly and accurately braking the rolled stock within the rotating drum, allowing the drum to smoothly unload the stock onto the cooling bed straightening plate. In high-speed bar production lines with two-line split rolling, the rotating drum needs to be equipped with four channels, and correspondingly, four sets of tail clamps are required. To shorten the production line length and facilitate centralized control, the tail clamps are usually arranged symmetrically along the rolling centerline, resulting in extremely limited installation space between each tail clamp. This not only makes daily inspection, maintenance, and roll changing operations extremely inconvenient but also significantly increases operating time, affecting both production line efficiency and the workload of operators. Utility Model Content

[0004] To address the technical problems of difficult operation and long time consumption caused by the narrow space during the inspection, maintenance and roll replacement of the aforementioned tail clamp, this application proposes a movable tail clamp device.

[0005] In view of this, this application proposes a movable tail clamp device, comprising: a fixed base, the fixed base including a base and a locking mechanism and a lateral drive mechanism disposed on the base; a movable base, movably disposed on the fixed base and driven by the lateral drive mechanism to move along a preset track; and a tail clamp body disposed on the movable base and capable of moving together with the movable base; wherein the movable base includes a seat body, a bottom sliding plate disposed on the bottom surface of the seat body and a side sliding plate disposed on the side of the seat body, the bottom sliding plate and the side sliding plate being used for movement guidance.

[0006] In some feasible implementations, the locking mechanism includes a plurality of locking cylinders spaced apart along the extension direction of a preset track for locking the movable base to the fixed base; the traverse drive mechanism is a traverse hydraulic cylinder, one end of which is disposed on the fixed base and the other end is connected to the movable base.

[0007] In some feasible implementations, the locking cylinder in the locking mechanism is a hydraulic locking cylinder or a disc spring locking cylinder.

[0008] In some feasible implementations, the base has a locking mating surface, the locking cylinder has a pressure plate, the pressure plate has a contact plane for fitting with the locking mating surface, the inclination angle of the contact plane matches the inclination angle α of the locking mating surface, and the value of angle α ranges from 20 degrees to 30 degrees.

[0009] In some feasible implementations, the traverse hydraulic cylinder includes: a cylinder barrel; a piston rod, assembled within the cylinder barrel for outputting linear drive; and a displacement sensor, disposed within the cylinder barrel, for detecting the displacement of the piston rod.

[0010] In some feasible embodiments, the movable base is provided with a wear-resistant liner corresponding to the locking cylinder, and the wear-resistant liner is detachably fixed to the contact area between the movable base and the locking cylinder pressure plate.

[0011] In some feasible embodiments, the fixed base further includes: a steel plate disposed on the base; a support disposed on the steel plate; and a transverse drive mechanism disposed on the support and located between the support and the locking mechanism.

[0012] In some feasible implementations, the traverse drive mechanism is provided with a trunnion and is hinged to a support via the trunnion, with a bushing provided between the trunnion and the mounting hole of the support.

[0013] In some feasible embodiments, the movable tail clamp device further includes a centralized lubrication system, wherein the oil supply lines of the centralized lubrication system are respectively connected to the contact surfaces of the bottom sliding plate and the fixed base, and the contact surfaces of the side sliding plate and the fixed base.

[0014] In some feasible implementations, the movable tail clamp device further includes a limiting stop, disposed on the fixed base at the end of the travel of the movable base, to provide a mechanical limit.

[0015] Compared with related technologies, this application has the following technical advantages: The movable tail clamp device provided in this application is used in a high-speed bar production line. During routine maintenance and roll changing, the tail clamp can be moved along the direction perpendicular to the rolling centerline, greatly increasing the operating space. This effectively solves the problems of inconvenient operation and long operating times, improving production line efficiency, reducing production costs, and decreasing labor intensity. The device has a simple and compact structure and is easy to process and install.

[0016] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1One of the structural schematic diagrams of a movable tail clamp device according to one embodiment of this application is shown; Figure 2 A second schematic diagram of the structure of a movable tail clamp device according to one embodiment of this application is shown; Figure 3 A schematic diagram of the structure of the movable base in one embodiment of this application is shown; Figure 4 It shows Figure 3 Enlarged view of Part I; Figure 5 One of the structural schematic diagrams of the fixed base in one embodiment of this application is shown; Figure 6 A second schematic diagram of the structure of the fixed base in one embodiment of this application is shown; Figure 7 A schematic diagram of the locking cylinder in one embodiment of this application is shown; Figure 8 It shows Figure 5 A sectional view along line AA.

[0018] in, Figures 1 to 8 The correspondence between the reference numerals and component names in the attached drawings is as follows: 1. Tail clamp body, 2. Movable base, 3. Fixed base, 4. Pin, 201. Seat body, 202. Side slide plate, 203. Bottom slide plate, 301. Locking cylinder, 302. Base, 303. Lateral hydraulic cylinder, 304. Support, 305. Bushing, 306. Locking cylinder body, 307. Pressure plate, 308. Steel plate. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0021] The following reference Figures 1 to 8 This application describes a movable tail clamp device according to some embodiments.

[0022] Example 1 like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, this application provides a movable tail clamp device, including: a fixed base 3, the fixed base 3 including a base 302 and a locking mechanism and a transverse drive mechanism disposed on the base 302; a movable base 2, movably disposed on the fixed base 3 and driven by the transverse drive mechanism to move along a preset track; a tail clamp body 1, disposed on the movable base 2 and capable of moving together with the movable base 2; wherein, the movable base 2 includes a seat body 201, a bottom sliding plate 203 disposed on the bottom surface of the seat body 201 and a side sliding plate 202 disposed on the side of the seat body 201, the bottom sliding plate 203 and the side sliding plate 202 are used to realize movement guidance.

[0023] The movable clamping device provided in this application is used in a high-speed bar production line, including a fixed base 3, a movable base 2, and a clamping device body 1. The fixed base 3 includes a lateral movement drive mechanism and a locking mechanism. Through the lateral movement drive mechanism, the clamping device body 1 and the movable base 2 can be moved out of the rolling centerline area as a whole, providing maintenance personnel with a wide and safe operating space. This simplifies and speeds up the previously cumbersome and time-consuming maintenance work, significantly shortens production line downtime, directly improves operating efficiency, and reduces production losses. The direction of the preset track is perpendicular to the rolling centerline direction.

[0024] When the lateral drive mechanism pushes the moving base 2 and the clamp body 1 to the preset working position, the locking mechanism is activated. The locking mechanism applies a locking force to lock the moving base 2, preventing the moving base 2 from being accidentally displaced or loosened, thereby ensuring the continuity and stability of the maintenance process.

[0025] The mobile base 2 adopts a dual guide structure combining the bottom sliding plate 203 and the side sliding plate 202, which ensures its stability and straight-line accuracy when moving on the fixed base 3, and effectively prevents jamming and deviation.

[0026] The movable tail clamp device provided in this application can move the tail clamp body 1, which solves the problem that the limited space during daily maintenance and roller replacement of the tail clamp makes operation extremely inconvenient and time-consuming, thereby improving the operating efficiency of the high-speed bar production line and reducing production costs and labor intensity.

[0027] Example 2 Based on the above embodiments, such as Figure 5 and Figure 6 As shown, the locking mechanism includes multiple locking cylinders 301 arranged at intervals along the extension direction of the preset track, used to lock the movable base 2 to the fixed base 3; the transverse drive mechanism is a transverse hydraulic cylinder 303, one end of which is disposed on the fixed base 3 and the other end is connected to the movable base 2.

[0028] In this embodiment, the locking mechanism employs multiple locking cylinders 301 spaced apart along the preset track extension direction, which can provide uniform and stable locking force, effectively avoiding uneven load or base warping that may occur due to single-point locking, and ensuring that the movable base 2 and the fixed base 3 are tightly fitted on the contact surface. When the locking cylinder 301 is working, its force can be decomposed into vertical clamping force and horizontal lateral force, thereby restricting the displacement of the movable base 2 from two degrees of freedom, forming a stable mechanical rigid connection.

[0029] The lateral movement drive mechanism uses a lateral movement hydraulic cylinder 303, with one end fixed to the fixed base 3 and the other end connected to the movable base 2. The hydraulic cylinder drive method features high power and smooth operation, providing sufficient and stable power to the movable base 2, enabling it to move accurately along the preset track. Furthermore, the hydraulic system is easy to control, allowing for precise adjustment of the movement speed and displacement according to actual production needs, thus improving operational flexibility and accuracy.

[0030] Example 3 Based on the above embodiments, the locking cylinder 301 in the locking mechanism is a hydraulic locking cylinder or a disc spring locking cylinder.

[0031] In this embodiment, the locking cylinder 301 in the locking mechanism is a hydraulic locking cylinder or a disc spring locking cylinder. The hydraulic locking cylinder provides a strong and stable locking force, precisely controlling the degree of locking to ensure a secure connection between the moving base 2 and the fixed base 3. This effectively prevents the moving base 2 from shifting due to vibrations during equipment operation, ensuring stable operation of the clamping device and improving the accuracy of workpiece braking. Simultaneously, the hydraulic system responds quickly, acting rapidly when unlocking is required without affecting the lateral movement of the moving base 2, thus improving equipment adjustment efficiency.

[0032] Disc spring locking cylinders rely on the elastic deformation of disc springs to generate locking force. They have a simple and compact structure, occupy little space, and are suitable for installation in confined spaces. Furthermore, disc springs have good cushioning properties, reducing impact during the locking process and extending the equipment's lifespan. In addition, disc spring locking cylinders are easy to maintain and have relatively low costs, helping to reduce overall maintenance expenses and improve the equipment's economy and reliability.

[0033] Example 4 Based on the above embodiments, such as Figure 3 and Figure 7 As shown, the seat 201 is provided with a locking mating surface, and the locking cylinder 301 is provided with a pressure plate 307. The pressure plate 307 is provided with a contact plane for fitting with the locking mating surface. The inclination angle of the contact plane matches the inclination angle α of the locking mating surface. The value of angle α ranges from 20 degrees to 30 degrees.

[0034] In this embodiment, the tilt angle of the contact plane matches the tilt angle α of the locking mating surface, and the angle α is between 20 and 30 degrees. This specific angle design allows for a large horizontal component force when the two are in contact. When the locking cylinder 301 is activated, the pressure plate 307 is tightly fitted with the seat 201, and the horizontal component force effectively prevents the moving base 2 from shifting in the horizontal direction, greatly enhancing the stability of the locking and ensuring that the clamping body 1 can always remain in the accurate position under the complex working conditions of the high-speed bar production line.

[0035] Furthermore, the 20-30 degree tilt angle ensures uniform contact between the pressure plate 307 and the locking mating surface, preventing localized stress concentration. During maintenance and repair, even under significant vibration and impact, the reliability of the locking mechanism is maintained, reducing equipment malfunctions and production accidents caused by loosening, and improving the safety and stability of the production line.

[0036] An angle range of 20 to 30 degrees not only satisfies the locking function but also optimizes the structural stress. It avoids insufficient locking force due to an excessively small angle, and prevents damage to components due to unreasonable structural stress. This extends the equipment's lifespan, reduces maintenance costs and downtime, and improves production efficiency.

[0037] Example 5 Based on the above embodiments, the transverse hydraulic cylinder 303 includes: a cylinder barrel; a piston rod, assembled inside the cylinder barrel for outputting linear drive; and a displacement sensor, disposed in the cylinder barrel for detecting the displacement of the piston rod.

[0038] In this embodiment, the transverse hydraulic cylinder 303 includes a cylinder barrel, a piston rod, and a displacement sensor. The piston rod is assembled inside the cylinder barrel and outputs linear drive, providing stable and powerful linear power to the moving base 2. In a high-speed bar production line, this ensures that the tail clamp body 1 moves accurately along a preset track, meeting the precise requirements for tail clamp position adjustment in different production scenarios.

[0039] A displacement sensor mounted on the cylinder barrel can detect the displacement of the piston rod in real time. By feeding this displacement information back to the control system, precise control of the movement of the transverse hydraulic cylinder 303 can be achieved. Operators can accurately adjust the movement distance of the clamping device according to actual production needs, avoiding disruptions to maintenance efficiency due to insufficient or excessive movement. Simultaneously, the displacement sensor can also promptly detect abnormal piston rod movement, such as jamming or overtravel, ensuring the safe operation of the equipment.

[0040] Example 6 Based on the above embodiments, the movable base 2 is provided with a wear-resistant liner corresponding to the locking cylinder 301. The wear-resistant liner is detachably fixed to the contact area between the movable base 2 and the pressure plate 307 of the locking cylinder 301.

[0041] In this embodiment, during the repeated operation of the locking cylinder 301, the contact area is prone to wear due to friction. The wear-resistant liner effectively resists this wear, extends the service life of the contact parts of the moving base 2, reduces equipment failures and maintenance frequency caused by base wear, and ensures the continuous and stable operation of the production line.

[0042] The wear-resistant liner uses a detachable fixing method. When it wears to a certain extent and needs to be replaced, there is no need to perform complicated disassembly operations on the movable base 2. Simply remove the damaged wear-resistant liner and replace it with a new one. This simplifies the maintenance process, shortens repair time, and reduces maintenance costs. The excellent wear resistance of the wear-resistant liner ensures the stability of the contact between the locking cylinder 301 and the movable base 2, allowing the locking force to be transmitted evenly and effectively, thereby improving the working stability and reliability of the entire movable tail clamp device.

[0043] Example 7 Based on the above embodiments, such as Figure 5 As shown, the fixed base 3 also includes: a steel plate 308, which is disposed on the base 302; a support 304, which is disposed on the steel plate 308; and a transverse drive mechanism disposed on the support 304 and located between the support 304 and the locking mechanism.

[0044] In this embodiment, the fixed base 3 also includes a steel plate 308 and a support 304. The steel plate 308 is disposed on the base 302, providing a solid and flat bearing surface for the entire device, which can evenly distribute the pressure generated by the operation of the equipment and enhance the stability of the fixed base 3. The support 304 is installed on the steel plate 308, further improving the stability of the structure, providing a reliable support foundation for the transverse drive mechanism, and reducing vibration and shaking during operation.

[0045] By placing the lateral drive mechanism between the support 304 and the locking mechanism, this compact layout makes full use of space, resulting in a more compact and rational equipment structure. It avoids interference between components, shortens the transmission path, improves energy transfer efficiency, and reduces energy loss.

[0046] Example 8 Based on the above embodiments, such as Figure 8 As shown, the transverse drive mechanism is provided with a trunnion and is hinged to the support 304 through the trunnion. A bushing 305 is provided between the trunnion and the mounting hole of the support 304.

[0047] In this embodiment, the trunnion is hinged to the support 304, allowing the lateral drive mechanism to rotate flexibly. During equipment operation, the lateral drive mechanism can swing at a certain angle according to actual needs to adapt to different working states and load changes, ensuring smooth and precise movement. Simultaneously, the bushing 305 effectively reduces direct friction between the trunnion and the mounting hole of the support 304. The bushing 305 is generally made of wear-resistant, self-lubricating material, which reduces wear, extends the service life of the trunnion and support 304, and reduces the cost and time consumption caused by frequent component replacement.

[0048] The bushing 305 also has a certain buffering and shock absorption function. When the equipment is subjected to external impact or vibration, the bushing 305 can absorb some of the energy, reduce the impact force on the transverse drive mechanism and the support 304, thereby improving the stability and reliability of the entire device and ensuring the continuous and stable operation of the high-speed bar production line.

[0049] Example 9 Based on the above embodiments, the movable tail clamp device further includes: a centralized lubrication system, wherein the oil supply lines of the centralized lubrication system are respectively connected to the contact surface between the bottom sliding plate 203 and the fixed base 3, and the contact surface between the side sliding plate 202 and the fixed base 3.

[0050] In this embodiment, the centralized lubrication system can deliver lubricating oil to the contact surfaces in a timely and quantitative manner, forming a stable oil film between the bottom sliding plate 203 and the side sliding plate 202 and the fixed base 3. This can effectively reduce the coefficient of friction between the contact surfaces, reduce movement resistance, make the moving base 2 move more smoothly during lateral movement, avoid jamming and crawling caused by dry friction, and improve the stability and accuracy of equipment operation.

[0051] Continuous lubrication prevents high temperatures generated by friction on the contact surfaces, avoiding direct contact and wear between metal surfaces. This significantly extends the service life of the bottom slide plate 203, side slide plate 202, and fixed base 3, reducing the frequency of equipment maintenance and replacement costs, and improving the equipment's economy and reliability.

[0052] The centralized lubrication system automates lubrication management, eliminating the need for frequent manual lubrication operations and reducing maintenance workload and time. This helps maintain good equipment operating condition, improves production efficiency, and ensures continuous and stable production on high-speed bar production lines.

[0053] Example 10 Based on the above embodiments, the movable tail clamp device further includes: a limiting block disposed on the fixed base 3 and located at the end of the travel of the movable base 2 to provide mechanical limiting.

[0054] In this embodiment, during the movement of the movable base 2, the limiting block provides a clear stopping position. When the movable base 2 reaches the end of its stroke, it makes mechanical contact with the limiting block, thus stopping precisely. This ensures that the clamping body 1 is in the accurate position after each movement, meeting the stringent requirements for the braking position of the rolled product in high-speed bar production and improving the stability of product quality.

[0055] Mechanical limiters can effectively prevent the movable base 2 from overshooting due to control system malfunctions, inertia, or other reasons. Once the movable base 2 exceeds the preset travel distance, the limit block will immediately stop its continued movement, avoiding collisions with surrounding equipment or structures, protecting equipment safety, and reducing production accidents and maintenance costs caused by equipment damage.

[0056] Example 11 In practical applications, the movable tail clamp device also includes an automatic hydraulic pipeline docking device. This device is located between the fixed base 3 and the movable base 2, and automatically connects the oil supply pipeline between the locking cylinder 301 and the external hydraulic system when the movable base 2 reaches the working position. Once the movable base 2 is in place, the oil circuit is automatically connected, eliminating the tedious manual plugging and unplugging of connectors, shortening production line adjustment time, ensuring the locking mechanism receives stable pressure immediately, and improving the reliability and safety of equipment operation.

[0057] The movable tail clamp device also includes a controller, which is connected to a displacement sensor and configured to control the movement of the lateral hydraulic cylinder 303 based on the feedback signal from the displacement sensor, so that the movable base 2 stops precisely at multiple preset positions. This achieves precise positioning and automatic stopping of the movable base 2 across multiple workstations. This not only eliminates positional errors caused by manual operation and ensures consistency in the production process, but also enables rapid automatic equipment switching, significantly improving the automation level and operational efficiency of the production line.

[0058] In a specific embodiment, the movable tail clamp device provided in this application is used in a high-speed bar production line, including a tail clamp body 1, a movable base 2, and a fixed base 3. The tail clamp body 1 is fixed to the movable base 2 by bolts, the movable base 2 is mounted on the fixed base 3 and connected by a pin 4, and the movable base 2 can move on the fixed base 3.

[0059] The movable base 2 includes a base 201, a side slide plate 202, and a bottom slide plate 203. The side slide plate 202 and the bottom slide plate 203 are both fixed to the base 201 by bolts.

[0060] The fixed base 3 includes a locking cylinder 301, a base 302, a transverse hydraulic cylinder 303, and a support 304. The locking cylinder 301 is fixed to the base 302 by bolts, the transverse hydraulic cylinder 303 is installed in the support 304, and the support 304 is connected to the base 302 by bolts.

[0061] The movable base 2 is arranged symmetrically along the center line of NN. The oblique angle of the working surface X of the base 201 is α, and the value of angle α ranges from 20 degrees to 30 degrees.

[0062] The connecting bolts of the side slide plate 202 and the bottom slide plate 203 are hex socket head cap screws. The connecting holes of the side slide plate 202 and the bottom slide plate 203 are countersunk holes. After the screws are installed and tightened, the top surface of the screws is recessed into the slide plate by a distance H, where H ≥ 2mm.

[0063] Both the side skateboard 202 and the bottom skateboard 203 are made of wear-resistant material. The material of the side skateboard 202 and the bottom skateboard 203 can be ZCuAl. 10 Fe3 or nylon.

[0064] The fixed base 3 is arranged symmetrically along the center line of NN.

[0065] The locking cylinder 301 shall be arranged in no less than 2 on one side, and the total number shall be 4 or 6.

[0066] Locking cylinder 301 can be a hydraulic locking cylinder or a disc spring locking cylinder.

[0067] The locking cylinder 301 includes a locking cylinder body 306 and a pressure plate 307. The pressure plate 307 is fixed to the locking cylinder body 306 by hex socket screws. The connecting hole of the pressure plate 307 is a countersunk hole design. After the screws are installed and tightened, the top surface of the pressure plate is recessed into the sliding plate by a distance of not less than 2mm.

[0068] The pressure plate 307 is made of wear-resistant material and can be made of ZCuAl. 10 Fe3. The contact surface between the pressure plate 307 and the working surface X of the seat 201 is Y, and the oblique angle of the Y surface is the same as the oblique angle α of the X surface.

[0069] The transverse hydraulic cylinder 303 is a type with an intermediate trunnion connection. A bushing 305 is provided between the transverse hydraulic cylinder 303 and the support 304. The bushings 305 are symmetrically arranged and made of self-lubricating material.

[0070] The support 304 is installed on the steel plate 308. To ensure the strength of the installation point, the steel plate 308 and the base 302 are integrally welded structures.

[0071] The piston rod of the horizontal hydraulic cylinder 303 of the fixed base 3 is equipped with a protection device and a displacement sensor, which is built-in. Specific Implementation Example 1 like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, this embodiment provides a movable tail clamp device for a high-speed bar production line, including a tail clamp body 1, a movable base 2, and a fixed base 3. The tail clamp body 1 is fixed to the movable base 2 by bolts, and the movable base 2 is mounted on the fixed base 3 and connected by a pin 4, allowing the movable base 2 to move on the fixed base 3.

[0073] The movable base 2 includes a base 201, a side slide plate 202, and a bottom slide plate 203. The side slide plate 202 and the bottom slide plate 203 are both fixed to the base 201 by bolts.

[0074] The fixed base 3 includes a locking cylinder 301, a base 302, a transverse hydraulic cylinder 303, and a support 304. The locking cylinder 301 is fixed to the base 302 by bolts, the transverse hydraulic cylinder 303 is installed in the support 304, and the support 304 is connected to the base 302 by bolts.

[0075] The movable base 2 is arranged symmetrically along the center line of NN. The oblique angle of the working surface X of the base 201 is α, and the value of angle α ranges from 20 degrees to 30 degrees.

[0076] The fixed base 3 is symmetrically arranged along the center line NN. There shall be no fewer than two locking cylinders 301 on each side, with a total quantity of four or six. The locking cylinder 301 is either a hydraulic locking cylinder or a disc spring locking cylinder. Specific Implementation Example 2 like Figure 4 As shown, based on specific embodiment 1, this embodiment provides a movable tail clamp device. The connecting bolts of the side slide plate 202 and the bottom slide plate 203 are hex socket head cap screws, and the connecting holes of the side slide plate 202 and the bottom slide plate 203 are countersunk designs. After the screws are installed and tightened, the distance by which the top surface of the screw is recessed into the slide plate is H, where H ≥ 2mm. Both the side slide plate 202 and the bottom slide plate 203 are made of wear-resistant material, such as ZCuAl. 10 Fe3 or nylon. Specific Implementation Example 3 like Figure 7 As shown, based on specific embodiment 1, this embodiment provides a movable tail clamp device. The locking cylinder 301 includes a locking cylinder body 306 and a pressure plate 307. The pressure plate 307 is fixed to the locking cylinder body 306 by internal hexagonal screws. The connecting hole of the pressure plate 307 is a countersunk design. After the screws are tightened, the top surface of the pressure plate is recessed into the sliding plate by a distance of not less than 2mm. The pressure plate 307 is made of wear-resistant material, such as ZCuAl. 10 Fe3. The contact surface between the pressure plate 307 and the working surface X of the seat 201 is Y, and the oblique angle of the Y surface is the same as the oblique angle α of the X surface. Specific Implementation Example 4 like Figure 1 and Figure 8 As shown, based on specific embodiment 1, this embodiment provides a movable tail clamp device. The transverse hydraulic cylinder 303 is a type with an intermediate trunnion connection. A bushing 305 is provided between the transverse hydraulic cylinder 303 and the support 304. The bushings 305 are symmetrically arranged and made of self-lubricating material. The support 304 is mounted on a steel plate 308. To ensure the strength of the mounting point, the steel plate 308 and the base 302 are integrally welded structures. The piston rod of the transverse hydraulic cylinder 303 of the fixed base 3 is equipped with a protective device and a displacement sensor, which is built-in.

[0080] In this application, the term "multiple" refers to two or more unless otherwise expressly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0081] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0082] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A movable tail clamp device, characterized in that, include: A fixed base, the fixed base including a base and a locking mechanism and a transverse drive mechanism disposed on the base; The movable base is movably mounted on the fixed base and is driven by the transverse drive mechanism to move along a preset track; The tail clamp body is mounted on the movable base and can move together with the movable base; The movable base includes a base body, a bottom sliding plate disposed on the bottom surface of the base body, and a side sliding plate disposed on the side of the base body. The bottom sliding plate and the side sliding plate are used for movement guidance.

2. The movable tail clamp device according to claim 1, characterized in that, The locking mechanism includes a plurality of locking cylinders arranged at intervals along the extension direction of the preset track, for locking the movable base to the fixed base; The lateral movement drive mechanism is a lateral movement hydraulic cylinder, with one end of the lateral movement hydraulic cylinder disposed on the fixed base and the other end connected to the movable base.

3. The movable tail clamp device according to claim 2, characterized in that, The locking cylinder in the locking mechanism is a hydraulic locking cylinder or a disc spring locking cylinder.

4. The movable tail clamp device according to claim 3, characterized in that, The seat body is provided with a locking mating surface, the locking cylinder is provided with a pressure plate, the pressure plate is provided with a contact plane for fitting with the locking mating surface, the inclination angle of the contact plane matches the inclination angle α of the locking mating surface, and the value of angle α ranges from 20 degrees to 30 degrees.

5. The movable tail clamp device according to claim 2, characterized in that, The transverse hydraulic cylinder includes: Cylinder; The piston rod, assembled inside the cylinder, is used for outputting linear drive; A displacement sensor is installed in the cylinder to detect the displacement of the piston rod.

6. The movable tail clamp device according to claim 2, characterized in that, The movable base is provided with a wear-resistant liner corresponding to the locking cylinder, and the wear-resistant liner is detachably fixed to the contact area between the movable base and the locking cylinder pressure plate.

7. The movable tail clamp device according to any one of claims 1 to 6, characterized in that, The fixed base also includes: A steel plate is disposed on the base; A support is provided on the steel plate, and the transverse drive mechanism is provided on the support and located between the support and the locking mechanism.

8. The movable tail clamp device according to claim 7, characterized in that, The lateral drive mechanism is provided with a trunnion and is hinged to the support through the trunnion. A bushing is provided between the trunnion and the mounting hole of the support.

9. The movable tail clamp device according to any one of claims 1 to 6, characterized in that, Also includes: A centralized lubrication system, wherein the oil supply lines of the centralized lubrication system are respectively connected to the contact surfaces of the bottom sliding plate and the fixed base, and the contact surfaces of the side sliding plate and the fixed base.

10. The movable tail clamp device according to any one of claims 1 to 6, characterized in that, Also includes: A limit stop is provided on the fixed base, located at the end of the travel stroke of the movable base, to provide mechanical limitation.

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