Clamping device for sawing of steel pipes
By combining a support plate and a hydraulically driven guide block with a clamping block, the problem of unstable clamping during steel pipe sawing is solved, achieving reliable clamping of the steel pipe, improving sawing accuracy and equipment stability, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOTOU IRON & STEEL (GROUP) CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-23
AI Technical Summary
The existing steel pipe sawing clamping mechanism has poor clamping effect, causing the steel pipe to vibrate during the sawing process, which affects the sawing quality, damages the saw blade, increases maintenance costs, and reduces production efficiency and product competitiveness.
The system employs a combination structure of a support plate, first and second telescopic mechanisms, guide blocks, and clamping blocks. The guide blocks and clamping blocks are driven by a hydraulic cylinder to reliably clamp the steel pipe. The system utilizes the cooperation between the T-shaped slider and the groove, as well as the close contact between the V-shaped clamping surface and the surface of the steel pipe, to meet the clamping requirements of steel pipes of different specifications.
This achieves stable clamping of the steel pipe, avoids shaking during the sawing process, improves sawing accuracy and equipment lifespan, reduces maintenance frequency, and enhances production efficiency and product quality.
Smart Images
Figure CN224390100U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel pipe processing equipment technology, and in particular to a clamping device for steel pipe sawing. Background Technology
[0002] In the steel pipe production process, the rolled steel pipes need to be sawed to meet the diverse length requirements of different customers. During sawing, a reliable clamping mechanism is required to securely hold the steel pipe. However, existing clamping mechanisms often suffer from poor clamping performance in practical applications. This causes the steel pipe to vibrate during sawing, affecting not only the sawing quality but also easily damaging the saw blade, increasing equipment maintenance costs and the frequency of saw blade replacement, reducing production efficiency, and hindering the normal operation of subsequent processes. This impacts the efficient operation of the entire production line and the control of steel pipe production costs, ultimately reducing the product's competitiveness in the market. Utility Model Content
[0003] The purpose of this invention is to provide a clamping device for sawing steel pipes, which solves the problems existing in the prior art. It has a simple structure, is easy to use, and achieves reliable clamping of steel pipes.
[0004] To achieve the above objectives, this utility model provides the following solution:
[0005] This utility model provides a clamping device for sawing steel pipes, comprising: a support plate, a first telescopic mechanism, a second telescopic mechanism, a first guide block, a second guide block, a first clamping block, and a second clamping block. The support plate is used to place the steel pipe to be sawed. The first telescopic mechanism and the second telescopic mechanism are respectively fixedly connected to the frame on both sides of the support plate, and the telescopic ends of the first telescopic mechanism and the second telescopic mechanism are arranged facing each other. The first guide block is fixedly connected to the telescopic end of the first telescopic mechanism so as to move closer to or away from the second telescopic mechanism under the action of the first telescopic mechanism. The second guide block... The first clamping block is fixedly connected to the telescopic end of the second telescopic mechanism so that it moves closer to or further away from the first telescopic mechanism under the action of the second telescopic mechanism; the first clamping block is slidably connected to the first guide block in the vertical direction, and the end of the first clamping block away from the first guide block is a first V-shaped clamping surface, which is used to abut against one side of the steel pipe to be cut; the second clamping block is slidably connected to the second guide block in the vertical direction, and the end of the second clamping block away from the second guide block is a second V-shaped clamping surface, which is used to abut against one side of the steel pipe to be cut.
[0006] Preferably, it further includes a first slide rod and a second slide rod. One end of the first slide rod is fixedly connected to the first clamping block, and the other end is a first T-shaped slider. The first guide block is provided with a first T-shaped groove in the vertical direction, and the first T-shaped slider is slidably embedded in the first T-shaped groove. One end of the second slide rod is fixedly connected to the second clamping block, and the other end is a second T-shaped slider. The second guide block is provided with a second T-shaped groove in the vertical direction, and the second T-shaped slider is slidably embedded in the second T-shaped groove.
[0007] Preferably, the fit clearance between the first T-shaped slider and the first T-shaped groove is 0.05-0.1 mm, and the fit clearance between the second T-shaped slider and the second T-shaped groove is 0.05-0.1 mm.
[0008] Preferably, the included angle of the first V-shaped clamping surface is 110° to 130°, and the included angle of the second V-shaped clamping surface is 110° to 130°.
[0009] Preferably, when the first T-shaped slider is located at the bottom end of the first T-shaped groove, the horizontal center plane of the first V-shaped clamping surface is coplanar with the horizontal center plane of the steel pipe to be cut or is located below the horizontal center plane of the steel pipe to be cut, and the top surface of the first V-shaped clamping surface is higher than the horizontal center plane of the steel pipe to be cut. When the second T-shaped slider is located at the bottom end of the second T-shaped groove, the horizontal center plane of the second V-shaped clamping surface is coplanar with the horizontal center plane of the steel pipe to be cut or is located below the horizontal center plane of the steel pipe to be cut, and the top surface of the second V-shaped clamping surface is higher than the horizontal center plane of the steel pipe to be cut.
[0010] Preferably, the first telescopic mechanism includes a first hydraulic cylinder, a first connecting rod, and a first fixing block. The first hydraulic cylinder is fixedly connected to the frame via the first fixing block. One end of the first connecting rod is fixedly connected to the piston rod of the first hydraulic cylinder, and the other end is fixedly connected to the first guide block. The second telescopic mechanism includes a second hydraulic cylinder, a second connecting rod, and a second fixing block. The second hydraulic cylinder is fixedly connected to the frame via the second fixing block. One end of the second connecting rod is fixedly connected to the piston rod of the second hydraulic cylinder, and the other end is fixedly connected to the second guide block. Both the first hydraulic cylinder and the second hydraulic cylinder are connected to a hydraulic system.
[0011] Preferably, the piston rod stroke of the first hydraulic cylinder is 100-150mm, and the piston rod stroke of the second hydraulic cylinder is 100-150mm.
[0012] Preferably, the cylinder body diameter of the first hydraulic cylinder is 50mm, the first connecting rod is made of 36mm round steel and the surface is chrome-plated, and the cylinder body diameter of the second hydraulic cylinder is 50mm, the second connecting rod is made of 36mm round steel and the surface is chrome-plated.
[0013] Preferably, the support plate is made of a 35mm thick steel plate, and the top surface of the support plate is provided with anti-slip texture.
[0014] The present invention achieves the following technical advantages over the prior art:
[0015] This utility model provides a clamping device for steel pipe sawing. The first V-shaped clamping surface and the second V-shaped clamping surface abut against both sides of the steel pipe to be sawed and can slide up and down during the clamping process so that the center surfaces of the first V-shaped clamping surface and the second V-shaped clamping surface are coplanar with the horizontal center surface of the steel pipe. This structural arrangement allows the device to firmly clamp the steel pipe from both sides. The telescopic mechanism drives the guide block and the clamping block to move, which can adapt to steel pipes in different positions and states. It provides a basic support for accurate and reliable clamping of steel pipes, ensures the stability of the steel pipe during the sawing process, and avoids problems such as reduced sawing accuracy and damage to the saw blade caused by the swaying of the steel pipe. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 A schematic diagram of the clamping device for steel pipe sawing provided by this utility model;
[0018] In the figure: 1. First hydraulic cylinder; 2. First connecting rod; 3. First guide block; 4. First sliding rod; 5. First clamping block; 6. Steel pipe; 7. Support plate; 8. First fixing block. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] The purpose of this invention is to provide a clamping device for sawing steel pipes, which solves the problems existing in the prior art. It has a simple structure, is easy to use, and achieves reliable clamping of steel pipes.
[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0022] This utility model provides a clamping device for sawing steel pipes, such as... Figure 1 As shown, the assembly includes: a support plate 7, a first telescopic mechanism, a second telescopic mechanism, a first guide block 3, a second guide block, a first clamping block 5, and a second clamping block. The support plate 7 is used to place the steel pipe 6 to be sawed. The first telescopic mechanism and the second telescopic mechanism are respectively fixedly connected to the frame on both sides of the support plate 7, and the telescopic ends of the first telescopic mechanism and the second telescopic mechanism are arranged facing each other. The first guide block 3 is fixedly connected to the telescopic end of the first telescopic mechanism so that it moves closer to or away from the second telescopic mechanism under the action of the first telescopic mechanism. The second guide block is fixedly connected to the telescopic end of the second telescopic mechanism so that it moves closer to or away from the first telescopic mechanism under the action of the second telescopic mechanism. The first clamping block 5 is slidably connected to the first guide block 3 in the vertical direction. The end of the first clamping block 5 furthest from the first guide block 3 is a first V-shaped clamping surface, which is used to abut against one side of the steel pipe 6 to be cut. The second clamping block and the second guide block are slidably connected in the vertical direction, and the end of the second clamping block furthest from the second guide block is a second V-shaped clamping surface, which is used to abut against one side of the steel pipe 6 to be cut. This structural arrangement allows the device to securely clamp the steel pipe 6 from both sides. By using the telescopic mechanism to drive the guide block and clamping block to move, it can adapt to steel pipes 6 in different positions and states, providing a basic support for accurate and reliable clamping of the steel pipe 6, ensuring the stability of the steel pipe 6 during the sawing process, and avoiding problems such as reduced sawing accuracy and damage to the saw blade caused by the shaking of the steel pipe 6.
[0023] In a preferred embodiment, the device further includes a first slide rod 4 and a second slide rod. One end of the first slide rod 4 is fixedly connected to the first clamping block 5, and the other end is a first T-shaped slider. The first guide block 3 is provided with a first T-shaped groove in the vertical direction, and the first T-shaped slider is slidably embedded in the first T-shaped groove. One end of the second slide rod is fixedly connected to the second clamping block, and the other end is a second T-shaped slider. The second guide block is provided with a second T-shaped groove in the vertical direction, and the second T-shaped slider is slidably embedded in the second T-shaped groove. This sliding connection structure between the T-shaped slider and the T-shaped groove allows the first clamping block 5 and the second clamping block to slide smoothly in the vertical direction. When clamping steel pipes 6 of different diameters, the clamping blocks can automatically adjust their positions according to the height of the steel pipe 6, ensuring that the two V-shaped clamping surfaces can always maintain good contact with the steel pipe 6. This enhances the adaptability of the device to steel pipes 6 of different specifications, improves the reliability and stability of clamping, and helps to improve sawing accuracy.
[0024] In a preferred embodiment, the fit clearance between the first T-shaped slider and the first T-shaped groove is 0.05-0.1mm, and the fit clearance between the second T-shaped slider and the second T-shaped groove is 0.05-0.1mm. By reasonably controlling the fit clearance, the first T-shaped slider can slide smoothly in the first T-shaped groove and the second T-shaped slider can slide smoothly in the second T-shaped groove, ensuring the flexibility of the clamping block in the vertical direction, while preventing the clamping block from shaking during the clamping process due to excessive clearance. This ensures the accuracy and stability of the entire clamping device, guarantees the stable clamping force required for sawing, and thus improves the quality of the sawn products.
[0025] In a preferred embodiment, the included angle of the first V-shaped clamping surface is 110° to 130°, and the included angle of the second V-shaped clamping surface is 110° to 130°. This angle range allows for a tighter and more comprehensive contact between the V-shaped clamping surfaces and the steel pipe 6. When clamping the steel pipe 6, the V-shaped clamping surfaces can better conform to the surface of the steel pipe 6, providing a uniform clamping force in the circumferential direction of the steel pipe 6, preventing the steel pipe 6 from rotating or shifting during the sawing process, thus helping to improve the sawing accuracy. Furthermore, this angle range can accommodate the clamping requirements of various common specifications of steel pipe 6.
[0026] In a preferred embodiment, when the first T-shaped slider is located at the bottom end of the first T-slot, the horizontal center plane of the first V-shaped clamping surface is coplanar with or below the horizontal center plane of the steel pipe 6 to be cut, and the top surface of the first V-shaped clamping surface is higher than the horizontal center plane of the steel pipe 6 to be cut. When the second T-shaped slider is located at the bottom end of the second T-slot, the horizontal center plane of the second V-shaped clamping surface is coplanar with or below the horizontal center plane of the steel pipe 6 to be cut, and the top surface of the second V-shaped clamping surface is higher than the horizontal center plane of the steel pipe 6 to be cut. This arrangement ensures that the clamping surface is always in a suitable position when clamping steel pipes 6 of different diameters, and can fully exert the clamping effect. Regardless of the diameter of the steel pipe 6, the V-shaped clamping surface can always provide effective support and clamping force for the steel pipe 6 in both horizontal and vertical directions, thereby making the entire clamping device more adaptable and versatile, and further improving the clamping effect and sawing quality.
[0027] In a preferred embodiment, the first telescopic mechanism includes a first hydraulic cylinder 1, a first connecting rod 2, and a first fixing block 8. The first hydraulic cylinder 1 is fixedly connected to the frame via the first fixing block 8. One end of the first connecting rod 2 is fixedly connected to the piston rod of the first hydraulic cylinder 1, and the other end is fixedly connected to the first guide block 3. The second telescopic mechanism includes a second hydraulic cylinder, a second connecting rod, and a second fixing block. The second hydraulic cylinder is fixedly connected to the frame via the second fixing block. One end of the second connecting rod is fixedly connected to the piston rod of the second hydraulic cylinder, and the other end is fixedly connected to the second guide block. Both the first hydraulic cylinder 1 and the second hydraulic cylinder are connected to a hydraulic system. Using hydraulic cylinders as a power source has the advantages of large output force, smooth operation, and easy control. The connection of the hydraulic system allows for convenient synchronous control of the extension and retraction of the two hydraulic cylinders, enabling the first and second telescopic mechanisms to work in coordination. This allows for precise control of the first clamping block 5 and the second clamping block as they move closer to or away from the steel pipe 6, achieving reliable and precise clamping of the steel pipe 6 and improving the automation level and work efficiency of the device.
[0028] In a preferred embodiment, the piston rod stroke of the first hydraulic cylinder 1 is 100-150 mm, and the piston rod stroke of the second hydraulic cylinder is 100-150 mm. This piston rod stroke range can meet the clamping requirements of steel pipes 6 of various specifications. When sawing steel pipes 6 of different diameters, the clamping block needs to have sufficient travel to achieve reliable clamping. A suitable stroke range ensures that the clamping device can adapt to steel pipes 6 with large size differences, without causing the device structure to become complex and the cost to increase due to excessive stroke, thus improving the versatility and economy of the device.
[0029] In a preferred embodiment, the first hydraulic cylinder 1 has a cylinder diameter of 50mm, and the first connecting rod 2 is made of 36mm round steel with a chrome-plated surface. The second hydraulic cylinder also has a cylinder diameter of 50mm, and the second connecting rod is made of 36mm round steel with a chrome-plated surface. The specific cylinder diameter and connecting rod specifications ensure that the output force of the hydraulic cylinder meets the clamping requirements. The 36mm round steel connecting rod has sufficient strength and rigidity, is not prone to deformation, and ensures reliability in transmitting hydraulic cylinder power. Chrome plating not only improves the wear resistance and corrosion resistance of the connecting rod, extending its service life and reducing the frequency of equipment maintenance due to component damage, but also improves surface finish, reduces frictional resistance with other components, and contributes to the smooth operation of the equipment.
[0030] In a preferred embodiment, the support plate 7 is made of a 35mm thick steel plate. The top surface of the support plate 7 has anti-slip textures. The support plate 7, made of a 35mm thick steel plate, has sufficient strength and rigidity to stably support the weight of the steel pipe 6 and prevent deformation of the support plate 7 from affecting the placement of the steel pipe 6. The anti-slip textures on the top surface increase the friction between the steel pipe 6 and the support plate 7, effectively preventing the steel pipe 6 from sliding, rolling, or shifting on the support plate 7 during placement and sawing, ensuring the stability of the steel pipe 6's position during sawing operations, thereby improving sawing accuracy.
[0031] The following are the steps for using the clamping device described above for steel pipe sawing:
[0032] Preparation
[0033] Before using the clamping device, conduct a comprehensive inspection of the entire device. Check the stability of the first telescopic mechanism (including the first hydraulic cylinder 1, the first connecting rod 2, and the first fixing block 8), the second telescopic mechanism (including the second hydraulic cylinder, the second connecting rod, and the second fixing block), the connection between the first slide rod 4 and the first guide block 3, the connection between the second slide rod and the second guide block, and the connection between the first hydraulic cylinder 1 and the second hydraulic cylinder and the hydraulic system; confirm that there is no damage, deformation, or other abnormalities in any component. At the same time, check whether the anti-slip texture on the top surface of the support plate 7 is intact.
[0034] Turn on the hydraulic system to fill the first hydraulic cylinder 1 and the second hydraulic cylinder with hydraulic oil. Check whether the pressure of the hydraulic system is normal to ensure that the system can work stably and provide stable power for subsequent clamping actions.
[0035] Steel pipe 6 placement
[0036] Place the steel pipe 6 to be cut on the support plate 7. Due to the anti-slip texture on the top surface of the support plate 7, the steel pipe 6 can be initially fixed during placement, preventing the steel pipe 6 from sliding and rolling at will, and ensuring that the steel pipe 6 is in a suitable sawing position.
[0037] Clamping action
[0038] Position Adjustment: Based on the diameter and specific location of the steel pipe 6, the piston rods of the first hydraulic cylinder 1 and the second hydraulic cylinder are controlled to extend and retract via the hydraulic system. The extension and retraction of the piston rod of the first hydraulic cylinder 1 drives the first connecting rod 2, thereby driving the first guide block 3 connected to the first connecting rod 2, causing the first guide block 3 to move closer to or further away from the second guide block on the frame; similarly, the extension and retraction of the piston rod of the second hydraulic cylinder causes the second guide block to move closer to or further away from the first guide block 3, thereby adjusting the distance between the first clamping block 5 and the second clamping block and the steel pipe 6, so that they are approximately close to the two sides of the steel pipe 6.
[0039] Precise clamping: As the first guide block 3 and the second guide block approach the steel pipe 6, the first clamping block 5 slides within the vertical first T-groove of the first guide block 3 via the first T-shaped slider on the first slide rod 4, and the second clamping block slides within the vertical second T-groove of the second guide block via the second T-shaped slider on the second slide rod. As the first guide block 3 and the second guide block continue to approach the steel pipe 6, after contact with the steel pipe 6, the first guide block 3 and the second guide block continue to approach, causing the first clamping block 5 and the second clamping block to slide upwards until the center planes of the first V-shaped clamping surfaces and the second V-shaped clamping surfaces are coplanar with the horizontal center plane of the steel pipe 6. At this point, the first V-shaped clamping surfaces and the second V-shaped clamping surfaces are in close contact with both sides of the steel pipe 6. Since the included angle between the first V-shaped clamping surfaces and the second V-shaped clamping surfaces is 110°-130°, they can make good contact with the surface of the steel pipe 6, providing uniform and reliable clamping force at a suitable position, thus achieving effective clamping of the steel pipe 6.
[0040] sawing operation
[0041] After the steel pipe 6 is reliably clamped by the clamping device, the sawing equipment is started to saw the steel pipe 6. During the entire sawing process, the reasonable cooperation of the various components of the clamping device, such as the appropriate clearance between the T-slider and the T-slot (0.05-0.1mm), ensures the stable sliding and positioning of the clamping block in the vertical direction; the appropriate piston rod stroke of the hydraulic cylinder (100-150mm) and the reasonable cylinder body diameter (50mm) and connecting rod (36mm round steel with chrome plating) provide a guarantee for the stable output of clamping force; the support plate 7 made of 35mm thick steel plate with anti-slip texture provides sufficient support and anti-slip effect for the steel pipe 6, so that the steel pipe 6 can always maintain a stable position, thereby ensuring the smooth progress of the sawing operation and improving the sawing accuracy.
[0042] Loosen and clean
[0043] After sawing is completed, the piston rods of the first hydraulic cylinder 1 and the second hydraulic cylinder are controlled by the hydraulic system to extend and retract in opposite directions, causing the first guide block 3 and the second guide block to move away from the steel pipe 6. This, in turn, causes the first clamping block 5 and the second clamping block to leave the steel pipe 6, releasing the clamp on the steel pipe 6. Afterward, sawdust and other debris are cleaned from the surface of the support plate 7, and the clamping device is left in a closed state for the next use. Maintenance and upkeep can be performed on the device according to the actual usage cycle to ensure its performance and service life.
[0044] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A clamping device for sawing steel pipes, characterized in that: include: A support plate for placing the steel pipe to be sawed; First telescopic mechanism, The second telescopic mechanism is fixedly connected to the frame on both sides of the support plate, and the telescopic ends of the first telescopic mechanism and the telescopic ends of the second telescopic mechanism are arranged facing each other. A first guide block is fixedly connected to the telescopic end of the first telescopic mechanism so that it moves closer to or further away from the second telescopic mechanism under the drive of the first telescopic mechanism. The second guide block is fixedly connected to the telescopic end of the second telescopic mechanism so that it moves closer to or further away from the first telescopic mechanism under the action of the second telescopic mechanism. A first clamping block is slidably connected to the first guide block in the vertical direction, and the end of the first clamping block away from the first guide block is a first V-shaped clamping surface, which is used to abut against one side of the steel pipe to be cut; and The second clamping block is slidably connected to the second guide block in the vertical direction, and the end of the second clamping block away from the second guide block is a second V-shaped clamping surface, which is used to abut against one side of the steel pipe to be sawed.
2. The clamping device for steel pipe sawing according to claim 1, characterized in that: It also includes a first slide rod and a second slide rod. One end of the first slide rod is fixedly connected to the first clamping block, and the other end is a first T-shaped slider. The first guide block is provided with a first T-shaped groove in the vertical direction, and the first T-shaped slider is slidably embedded in the first T-shaped groove. One end of the second slide rod is fixedly connected to the second clamping block, and the other end is a second T-shaped slider. The second guide block is provided with a second T-shaped groove in the vertical direction, and the second T-shaped slider is slidably embedded in the second T-shaped groove.
3. The clamping device for steel pipe sawing according to claim 2, characterized in that: The fit clearance between the first T-shaped slider and the first T-shaped groove is 0.05-0.1mm, and the fit clearance between the second T-shaped slider and the second T-shaped groove is 0.05-0.1mm.
4. The clamping device for steel pipe sawing according to claim 3, characterized in that: The included angle of the first V-shaped clamping surface is 110° to 130°, and the included angle of the second V-shaped clamping surface is 110° to 130°.
5. The clamping device for steel pipe sawing according to claim 4, characterized in that: When the first T-shaped slider is located at the bottom end of the first T-shaped groove, the horizontal center plane of the first V-shaped clamping surface is coplanar with the horizontal center plane of the steel pipe to be cut or is located below the horizontal center plane of the steel pipe to be cut, and the top surface of the first V-shaped clamping surface is higher than the horizontal center plane of the steel pipe to be cut. When the second T-shaped slider is located at the bottom end of the second T-shaped groove, the horizontal center plane of the second V-shaped clamping surface is coplanar with the horizontal center plane of the steel pipe to be cut or is located below the horizontal center plane of the steel pipe to be cut, and the top surface of the second V-shaped clamping surface is higher than the horizontal center plane of the steel pipe to be cut.
6. The clamping device for steel pipe sawing according to claim 1, characterized in that: The first telescopic mechanism includes a first hydraulic cylinder, a first connecting rod, and a first fixing block. The first hydraulic cylinder is fixedly connected to the frame via the first fixing block. One end of the first connecting rod is fixedly connected to the piston rod of the first hydraulic cylinder, and the other end is fixedly connected to the first guide block. The second telescopic mechanism includes a second hydraulic cylinder, a second connecting rod, and a second fixing block. The second hydraulic cylinder is fixedly connected to the frame via the second fixing block. One end of the second connecting rod is fixedly connected to the piston rod of the second hydraulic cylinder, and the other end is fixedly connected to the second guide block. Both the first and second hydraulic cylinders are connected to a hydraulic system.
7. The clamping device for steel pipe sawing according to claim 6, characterized in that: The piston rod stroke of the first hydraulic cylinder is 100-150mm, and the piston rod stroke of the second hydraulic cylinder is 100-150mm.
8. The clamping device for steel pipe sawing according to claim 7, characterized in that: The first hydraulic cylinder has a cylinder body diameter of 50mm, and the first connecting rod is made of 36mm round steel with chrome plating. The second hydraulic cylinder has a cylinder body diameter of 50mm, and the second connecting rod is made of 36mm round steel with chrome plating.
9. The clamping device for steel pipe sawing according to claim 1, characterized in that: The support plate is made of 35mm thick steel plate, and the top surface of the support plate is provided with anti-slip texture.