A clamping fixture for row casting of multiple steel ingots and its application method

Abstract

This invention relates to the field of steel ingot clamping technology and discloses a clamping fixture for multiple steel ingots cast in rows and its usage method. The fixture includes a crossbeam with a lifting arm fixedly connected to its top. Hydraulic cylinders are fixedly connected to the left and right sides of the crossbeam. Fixed plates are fixedly connected to the sides of the two hydraulic cylinders near the crossbeam. The crossbeam is hoisted above the steel ingots. Then, the hydraulic cylinders are activated to extend and push the two fixed plates closer to the crossbeam, causing the clamping blocks to move. This causes the rollers to contact the inclined surfaces of the inclined pushing blocks, squeezing the inclined surfaces and bringing the two inclined pushing blocks closer together. When the inclined pushing blocks contact the inclined steel ingots during their movement, they push the ingots to move until the sidewalls of the ingots are parallel to the sidewalls of the clamping blocks. After the ingots are vertical, by ensuring the ingots are parallel to the clamping blocks before clamping, tilting of the ingots is effectively prevented, thus reducing the contact area between the squeezing blocks and the ingots and affecting the stability of the clamping.

Description

Technical Field

[0001] This invention relates to the field of steel ingot clamping equipment technology, specifically to a clamping fixture for multiple steel ingots cast in rows and its usage method. Background Technology

[0002] Steel ingot casting is the process of pouring molten steel into a mold during steel production, which then cools to form a steel ingot with a certain shape and size. In steel ingot casting production workshops, in order to increase steel ingot casting output within a limited space, many companies adopt the method of casting multiple steel ingots at the same time to increase output. Among them, casting in rows of steel ingots is one such method. Clamping fixtures are important equipment to ensure the safety, stability and efficiency of steel ingots in production, handling and subsequent processing.

[0003] After the steel ingot is cast, it is often pushed out of the mold and then clamped. However, after the steel ingot is pushed out of the mold, it may tilt, which may cause uneven contact between the clamp and the steel ingot, resulting in unstable clamping. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a clamping fixture for multiple steel ingots to be cast in rows, comprising: The system includes a crossbeam and a gripping mechanism. A lifting arm is mounted on the top of the crossbeam, and hydraulic cylinders are fixedly connected to the left and right sides of the crossbeam. The output ends of the hydraulic cylinders are connected to a fixed plate. A plurality of gripping blocks are slidably connected to the bottom of the crossbeam and to the fixed plate, and are driven by the hydraulic cylinders to move along the crossbeam. A leveling mechanism is located between the gripping blocks and the crossbeam. The leveling mechanism is configured such that, during the movement of the gripping blocks towards the steel ingot, it extends inward before the gripping blocks to contact and correct the tilted steel ingot through mechanical linkage, and then separates from the steel ingot or remains relatively stationary, allowing the gripping blocks to continue moving and clamping the steel ingot.

[0005] The technical advantage of adopting the above-mentioned further solution is that by setting up a leveling mechanism, the single power source during the movement of the clamping block is cleverly utilized to automatically straighten the tilted steel ingot during the idle stroke phase before the clamping action occurs. This effectively solves the problem in the prior art where the clamping block and the steel ingot are in "point contact" or "line contact" rather than "surface contact" due to the tilt of the steel ingot during hoisting or placement, avoiding clamping slippage accidents caused by uneven force, and greatly improving the stability and safety of clamping rows of steel ingots.

[0006] In a preferred embodiment, the leveling mechanism includes: a connecting rod and a roller, the connecting rod being fixed to the clamping block and the roller being rotatably connected inside the connecting rod; an inclined push block slidably connected to the bottom of the crossbeam and having an inclined surface for the roller to roll; and a connecting plate and a spring return rod, the connecting plate connecting two opposing inclined push blocks and the spring return rod connecting the connecting plate and the crossbeam; wherein, the movement of the clamping block causes the roller to press against the inclined surface of the inclined push block, driving the inclined push block to move to straighten the steel ingot.

[0007] The technical advantages of adopting the above-mentioned further solution are as follows: By using a purely mechanical transmission method combining rollers and an inclined plane, the lateral horizontal movement of the clamping block is smoothly converted into the longitudinal extension movement of the inclined plane pushing the block. The inclined plane design not only amplifies the force, making the corrective thrust sufficiently large to push the heavy steel ingot back to its original position; simultaneously, when the clamping block retracts, the structure automatically resets using a spring-loaded reset rod. This results in a simple, durable structure with a low failure rate, suitable for harsh high-temperature working conditions.

[0008] In a preferred embodiment, the gripping mechanism includes: a squeezing block slidably connected to the inner wall of the clamping block; a sliding block and a spring block disposed at the bottom of the clamping block; and a linkage assembly connecting the squeezing block and the sliding block. When the squeezing block is squeezed back into the clamping block by the steel ingot, the linkage assembly drives the sliding block to extend, thereby causing the spring block to support the bottom of the steel ingot.

[0009] The technical advantage of adopting the above-mentioned further solution is that a passively triggered bottom safety lifting mechanism has been designed. Only when the squeezing block truly clamps the steel ingot will the bottom sliding block automatically extend to support the bottom of the steel ingot. This linkage design avoids malfunction of the lifting mechanism and achieves double insurance of side clamping + bottom lifting, preventing the steel ingot from accidentally slipping due to vibration during transportation.

[0010] In a preferred embodiment, the linkage component of the gripping mechanism includes a fixed frame, a rotating frame, and a spring return rod; the fixed frame is fixed inside the clamping block, and the rotating frame is rotatably connected to the fixed frame; one end of the rotating frame engages with the spring return rod pushed by the squeeze block, and the other end engages with the sliding block.

[0011] The technical advantages of adopting the above-mentioned further solution are: utilizing the lever principle of the rotating frame to connect the side squeezing block and the bottom sliding block, the response is sensitive and the force transmission is direct. When the side clamping force disappears, under the action of the second spring return rod, the bottom lifting structure can quickly and synchronously retract, ensuring a high degree of synchronization between clamping and releasing actions and improving work efficiency.

[0012] In a preferred embodiment, the clamping block is further provided with a striking component, which includes: a concave-convex plate fixedly connected to the bottom of the crossbeam; a second fixing frame, a spring arc block, and an L-shaped rod. The second fixing frame is fixed to the clamping block, the spring arc block is rotatably connected to the second fixing frame, and the L-shaped rod is fixed to the spring arc block. When the clamping block moves, the L-shaped rod slides across the protrusions and depressions on the surface of the concave-convex plate, causing the spring arc block to strike the surface of the steel ingot.

[0013] The technical effect of adopting the above-mentioned further solution is as follows: Utilizing the mechanical energy generated during the movement of the clamping block, the vibration produced by the L-shaped rod sliding across the concave-convex plate drives the spring-loaded arc-shaped block to continuously strike the surface of the steel ingot. This action is completed before the clamping block finally clamps, effectively loosening the hard oxide scale adhering to the surface of the steel ingot, preventing the clamping block from directly pressing on the loose oxide layer, which could lead to insufficient friction or subsequent loosening of the clamping due to oxide layer cracking.

[0014] In a preferred embodiment, the striking assembly further includes: a fixed frame and a sliding plate, the fixed frame being disposed within the clamping block, and the sliding plate being slidably connected within the fixed frame; a connecting rod connecting the sliding plate and the spring arc block; an air supply pipe, a diverter pipe, and a jetting plate, the air supply pipe communicating with the fixed frame, and the jetting plate being disposed on the side wall of the clamping block and facing the steel ingot; wherein, the movement of the spring arc block drives the sliding plate to move within the fixed frame via the connecting rod to compress gas, and the compressed gas is ejected from the jetting plate through the air supply pipe and the diverter pipe.

[0015] The technical effect of adopting the above-mentioned further solution is that the mechanical oscillation of the striking component is further converted into the power of gas compression, realizing "self-made high-pressure gas". There is no need for external complex air pump pipelines. The airflow can be generated by the movement of the tool itself. In conjunction with the jet plate, the struck part is blown away in time, and the loosened oxide scale debris is blown away in time, preventing the debris from getting stuck between the clamping surfaces and affecting the fit. This achieves the integration of cleaning and clamping.

[0016] In a preferred embodiment, the striking assembly further includes a blocking block with an air inlet groove. The blocking block is located at the connection between the fixed frame and the air supply pipe to control the opening and closing of the air passage. The air supply pipe is also equipped with a ball rod and an arc spring. When the ball rod is rotated by an external force, it swings in conjunction with the arc spring to disturb the airflow in the air supply pipe.

[0017] The technical advantages of adopting the above-mentioned further solution are as follows: the design of the blocking block allows the gas to accumulate pressure within the fixed frame first, and then release it instantaneously when it moves to a specific position, forming a pulsed high-pressure airflow, which has a better cleaning effect than a continuous low-pressure airflow. At the same time, the oscillation generated by the ball rod inside the pipe in conjunction with the arc spring can disrupt the airflow direction and form turbulence, thereby blowing away stubborn debris from the uneven surface of the steel ingot from multiple angles.

[0018] In a preferred embodiment, the extrusion block is further provided with a pushing assembly, which includes: a placement groove, formed inside the extrusion block; an oil storage pipe, disposed within the placement groove; a piston rod one, connected to the sliding plate and extending into the oil storage pipe; a piston rod two, slidably connected within the oil storage pipe; a pushing plate, an extrusion plate, a rotating plate, and a pushing rod, all disposed within the placement groove; and a spring reset rod three, connected to the pushing plate and the inner wall of the placement groove, used to reset the pushing plate. The sliding plate moves, causing piston rod one to extrude the medium within the oil storage pipe, driving piston rod two to push the pushing plate. The pushing plate causes the extrusion plate to move and extrude the pressure rod disposed on the rotating plate, driving the rotating plate to rotate. The rotating plate is connected to the pushing rod via a connecting rod two, thereby causing the pushing rod to extend beyond the surface of the extrusion block.

[0019] The technical advantages of adopting the above-mentioned further solution are as follows: A hydraulic adaptive compensation mechanism was designed to address the problem of uneven casting surface on steel ingots. Utilizing the incompressibility and fluidity of hydraulic oil, the preceding action is converted into a slight extension of the push rod. When the steel ingot surface has depressions or microscopic unevenness, the push rod can adaptively press against these areas, increasing the number of clamping contact points and further improving friction and clamping stability.

[0020] In a preferred embodiment, the pushing assembly further includes a connecting rod three and a push rod; the connecting rod three is connected to the pushing plate, and the push rod is connected to the end of the connecting rod three; when the pushing plate moves, it drives the push rod to press the ball rod inside the gas delivery pipe to rotate.

[0021] The technical advantage of adopting the above-mentioned further solution is that, through the connecting rod three and the push rod, the action of the pushing component is mechanically linked with the airflow disturbance mechanism. This ensures that the ball rod is only forcibly pushed to rotate to disturb the airflow at the critical moment of adaptive adjustment (i.e., just before clamping). This guarantees the precise timing of airflow disturbance, avoids energy waste, and forms a tight mechanical logic closed loop.

[0022] A method for using a clamping fixture for row casting of multiple steel ingots includes the following steps: S1: Equipment installation: The entire beam is lifted by hooking it onto the lifting arm of a crane; S2: Steel Ingot Straightening: The crossbeam is hoisted above the steel ingot, and then the hydraulic cylinder is activated to extend and push the clamping block to move, so that the roller contacts the inclined surface of the inclined pushing block and squeezes the inclined surface of the inclined pushing block, so that the two inclined pushing blocks are brought closer to each other. When the inclined pushing block contacts the inclined steel ingot during the movement, it will push the steel ingot to move until the side wall of the steel ingot is parallel to the side wall of the clamping block. S3: Ingot clamping: After the ingot is straightened, the clamping block continues to move and contact the ingot to clamp it.

[0023] The present invention has the following beneficial effects: (1) When using this invention, the entire crossbeam is lifted by the crane hook on the lifting arm. After the steel ingot is cast and pushed out of the casting mold, the crossbeam is lifted above the steel ingot. Then, the hydraulic cylinder is activated to extend and push the two fixed plates close to the crossbeam, causing the clamping block to move. This causes the connecting rod to move, making the roller contact the inclined surface of the inclined pushing block. During the continuous movement of the roller, the inclined surface of the inclined pushing block is squeezed, causing the two inclined pushing blocks to move closer to each other. This causes the spring return rod to move, allowing the spring return rod to accumulate rebound force. When the inclined pushing block contacts the inclined steel ingot during its movement, it pushes the steel ingot to move until the side wall of the steel ingot is parallel to the side wall of the clamping block. After the steel ingot is vertical, the roller will separate from the inclined surface of the inclined pushing block, leaving the inclined pushing block in a stationary state. At the same time, when the clamping block moves, it also causes the extrusion block to move, making the extrusion block contact the steel ingot. At this time, the clamping block... As the holding block continues to move, the squeezing block is compressed and retracts into the clamping block, causing the second spring return rod to move. This allows the second spring return rod to accumulate rebound force. When the second spring return rod moves, it pushes the rotating frame to rotate, causing the rotating frame to push the sliding block out of the clamping block. The sliding block moves to the bottom of the steel ingot, causing the spring block to move until it separates from the squeezing block. At this point, since the spring block was previously compressed, its rebound force is released, allowing the spring block to contact the bottom of the steel ingot and support it until the steel ingot contacts the clamping block, clamping the steel ingot. By keeping the steel ingot parallel to the clamping block before clamping, the steel ingot is effectively prevented from tilting, which would reduce the contact area between the squeezing block and the steel ingot, affecting the stability of the clamping. At the same time, the inclined pushing block, in conjunction with the clamping block and the spring block, changes the steel ingot from a conventional clamping to a gripping action, increasing the stability of the steel ingot during lifting.

[0024] (2) During the clamping process of the clamping block on the steel ingot, the present invention will drive the fixed frame two to move, causing the spring arc block to move, and the L-shaped rod to slide on the side wall of the concave-convex plate. When the L-shaped rod moves from the concave position to the convex position of the concave-convex plate, the L-shaped rod will be squeezed, and the L-shaped rod will push the spring arc block to rotate, allowing the spring arc block to accumulate rebound force. As the clamping block continues to move, the L-shaped rod will contact the concave position of the concave-convex plate again, and the rebound force of the spring arc block will be released, causing the spring arc block to return to its position quickly. At this time, the return process of the spring arc block will contact the contact surface between the steel ingot and the extrusion block, knocking the steel ingot and causing the oxide layer generated after the steel ingot is cast to crack. At the same time, when the roller pushes the inclined push block to move, the inclined push block located on the back will also drive the connecting rod one to rotate, causing the connecting rod one to push the sliding block to rotate. As the moving plate rises, it pulls the blocking block upwards. When the blocking block enters the air inlet slot, it blocks the air inlet slot, and the inside of the fixed frame is sealed. The sliding plate then compresses the gas inside the fixed frame. At this time, the compressed gas is blocked by the blocking block, so the gas generates high pressure. When the notch of the blocking block moves to the position of the air supply pipe, the air supply pipe will connect with the inside of the fixed frame, and the gas will enter the air supply pipe. The gas is then distributed through the diverter pipe, allowing the gas to enter the jet plate evenly. The jet plate sprays the gas onto the oxide layer that has been broken by the impact, separating the oxide layer from the steel ingot in advance. This effectively prevents the oxide layer from breaking in some areas when the steel ingot is clamped by the extrusion block, as the oxide layer is usually hard and fragile. The large clamping force may reduce the contact area between the extrusion block and the steel ingot, affecting the stability of the clamping.

[0025] (3) When the sliding plate rises, the piston rod 1 will rise, causing the piston rod 1 to squeeze the hydraulic oil in the oil storage pipe. The squeezed hydraulic oil will push the piston rod 2 to fall, thereby causing the piston rod 2 to push the push plate to fall. The push plate will push the pressure rod to fall, causing the extrusion plate at the top to fall, causing the connecting rod 2 at the top to rotate, thereby pushing the rotating plate to rotate, causing the rotating plate to tilt, causing the connecting rod 2 at the bottom to rotate, thereby causing the extrusion plate at the bottom to rise, allowing the two extrusion plates to approach each other and squeeze the spring return rod 3, allowing the spring return rod 3 to accumulate rebound force. At the same time, it squeezes the gas in the placement groove. At this time, the squeezed gas will push the push rod to move, allowing the push rod to contact the surface of the steel ingot. Since the push rod can move freely under the action of gas pressure, it can adapt to the surface shape of the steel ingot, effectively preventing the surface of the newly cast steel ingot from being too rough, affecting the surface adhesion between the extrusion block and the steel ingot, and helping to maintain a good clamping effect.

[0026] (4) When the push plate descends, the connecting rod also descends, causing the push rod to descend. As the push rod continues to descend, it will come into contact with the ball rod. The push rod will squeeze the ball rod, causing it to rotate. This causes the side of the ball rod that is in contact with the push rod to descend, while the other side of the ball rod rises, squeezing the arc spring and allowing it to accumulate rebound force. As the ball rod continues to rotate, it will separate from the push rod. At this time, since the weight of the ball rod is concentrated on the rising side, the rebound force of the arc spring will also be released, causing the ball rod to swing up and down rapidly. At this time, high-pressure gas will also enter the gas transmission pipe. Through the swing of the ball rod, it will cause local disturbance to the airflow in the gas transmission pipe, making the airflow more turbulent, thereby enhancing the impact force of the airflow and better separating the oxide layer on the surface of the steel ingot. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a cross-sectional view of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic cross-sectional view of the clamping block of the present invention from the right side. Figure 4 This is a cross-sectional view of the fixing frame of the present invention; Figure 5 For the present invention Figure 4 Enlarged diagram of A in the middle; Figure 6 For the present invention Figure 4 Enlarged diagram of B in the diagram; Figure 7 This is a cross-sectional schematic diagram of the extrusion block of the present invention; Figure 8 For the present invention Figure 7 Enlarged diagram of C in the middle; Figure 9 This is a schematic diagram of the workflow of the present invention.

[0029] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Crossbeam; 11. Lifting arm; 12. Hydraulic cylinder; 13. Fixing plate; 14. Clamping block; 2. Alignment mechanism; 21. Connecting rod one; 22. Roller; 23. Inclined push block; 24. Connecting plate; 25. Spring return rod one; 3. Gripping mechanism; 31. Squeezing block; 32. Spring return rod two; 33. Fixing frame one; 34. Rotating frame; 35. Sliding block; 36. Spring block; 4. Striking assembly; 41. Fixing frame; 42. Sliding plate; 421. Connecting rod one; 43. Concave-convex plate; 44. Fixing frame two; 441. Spring arc block; 442. L-shaped rod; 45. Blocking block; 451. Air inlet slot; 46. Air delivery pipe; 461. Diverter pipe; 47. Jet plate; 5. Pushing assembly; 51. Placement slot; 52. Oil storage pipe; 521. Piston rod one; 522. Piston rod two; 53. Push plate; 54. Squeezing plate; 541. Pressure rod; 55. Rotating plate; 551. Connecting rod two; 56. Spring return rod three; 561. Push rod; 57. Connecting rod three; 571. Push rod; 58. Ball rod; 581. Arc spring. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1 to 9 This embodiment provides a technical solution: a central shaft-style shock absorber, including: a crossbeam 1 and a gripping mechanism 3. The top of the crossbeam 1 is provided with a lifting arm 11. Hydraulic cylinders 12 are fixedly connected to the left and right sides of the crossbeam 1. The output end of the hydraulic cylinders 12 is connected to a fixed plate 13; a clamping block 14, several clamping blocks 14 are slidably connected to the bottom of the crossbeam 1 and connected to the fixed plate 13, and are driven by the hydraulic cylinders 12 to move along the crossbeam 1; a leveling mechanism 2 is provided between the clamping blocks 14 and the crossbeam 1; the leveling mechanism 2 is configured such that: during the process of the clamping blocks 14 clamping and moving towards the steel ingot, the clamping block 14 extends inward first through mechanical linkage to contact and correct the tilted steel ingot, and then separates from the steel ingot or remains relatively stationary, allowing the clamping blocks 14 to continue to move and clamp the steel ingot.

[0032] In use, by setting up the leveling mechanism 2, the single power source of the clamping block 14 during its movement is cleverly utilized to automatically straighten the tilted steel ingot during the idle stroke phase before the clamping action occurs. This effectively solves the problem in the prior art where the clamping block 14 and the steel ingot make point or line contact rather than surface contact due to the tilt of the steel ingot during hoisting or placement, thus avoiding clamping slippage accidents caused by uneven force.

[0033] like Figures 1 to 9 As shown, in one embodiment, the leveling mechanism 2 includes: a connecting rod 21 and a roller 22, the connecting rod 21 being fixed on the clamping block 14, and the roller 22 being rotatably connected inside the connecting rod 21; an inclined push block 23, slidably connected to the bottom of the crossbeam 1, and having an inclined surface for the roller 22 to roll; it also includes a connecting plate 24 and a spring return rod 25, the connecting plate 24 connecting two opposing inclined push blocks 23, and the spring return rod 25 connecting the connecting plate 24 and the crossbeam 1; wherein, the movement of the clamping block 14 drives the roller 22 to press the inclined surface of the inclined push block 23, driving the inclined push block 23 to move to correct the steel ingot, adopting a purely mechanical transmission method of the roller 22 cooperating with the inclined push block 23, smoothly converting the lateral horizontal movement of the clamping block 14 into the longitudinal extension movement of the inclined push block 23. The inclined surface design not only amplifies the force, making the corrective thrust large enough to push the heavy steel ingot back to its original position; at the same time, when the clamping block 14 retracts, the structure can automatically reset by relying on the spring reset rod 25. The structure is simple, durable, has a low failure rate, and is suitable for high-temperature and harsh working conditions.

[0034] like Figures 1 to 9 As shown, in one embodiment, the gripping mechanism 3 includes: a squeezing block 31 slidably connected to the inner wall of the clamping block 14; a sliding block 35 and a spring block 36 disposed at the bottom of the clamping block 14; and a linkage assembly connecting the squeezing block 31 and the sliding block 35. When the squeezing block 31 is squeezed back into the clamping block 14 by the steel ingot, the linkage assembly drives the sliding block 35 to extend, causing the spring block 36 to support the bottom of the steel ingot. When the squeezing block 31 truly clamps the steel ingot and is subjected to lateral pressure, the sliding block 35 at the bottom automatically extends to support the bottom of the steel ingot. This linkage design avoids malfunction of the gripping mechanism 3, achieving double insurance of side clamping and bottom support, preventing the steel ingot from accidentally slipping due to vibration during transport, and significantly improving the safety factor.

[0035] like Figures 1 to 9 As shown, in one embodiment, the linkage components of the gripping mechanism 3 include a fixed frame 33, a rotating frame 34, and a spring return rod 32. The fixed frame 33 is fixed inside the clamping block 14, and the rotating frame 34 is rotatably connected to the fixed frame 33. One end of the rotating frame 34 engages with the spring return rod 32 pushed by the compression block 31, and the other end engages with the sliding block 35. The lever principle of the rotating frame 34 connects the side compression block 31 and the bottom sliding block 35, resulting in a sensitive response and direct force transmission. When the side clamping force disappears, such as during unloading, the bottom lifting structure can quickly and synchronously retract under the action of the spring return rod 32, ensuring a high degree of synchronization between the clamping and releasing actions and improving work efficiency.

[0036] like Figures 1 to 9As shown, in one embodiment, the clamping block 14 is further provided with a striking component 4, which includes: a concave-convex plate 43, fixedly connected to the bottom of the crossbeam 1; a second fixing frame 44, a spring arc block 441, and an L-shaped rod 442. The second fixing frame 44 is fixed to the clamping block 14, the spring arc block 441 is rotatably connected to the second fixing frame 44, and the L-shaped rod 442 is fixed to the spring arc block 441. When the clamping block 14 moves, the L-shaped rod 442 slides across the protrusions and depressions on the surface of the concave-convex plate 43, driving the spring arc block 441 to strike the surface of the steel ingot. Utilizing the mechanical energy generated during the movement of the clamping block 14, the vibration generated by the L-shaped rod 442 sliding across the concave-convex plate 43 drives the spring arc block 441 to continuously strike the surface of the steel ingot. This action is completed before the clamping block 14 finally clamps, effectively loosening the hard oxide layer attached to the surface of the steel ingot. This prevents the clamping block 14 from pressing directly on the loose oxide layer, which could lead to insufficient friction or loosening of the clamping due to later oxide layer cracking, and ensures direct contact between the clamp and the steel ingot substrate.

[0037] like Figures 1 to 9 As shown, in one embodiment, the striking assembly 4 further includes: a fixed frame 41 and a sliding plate 42, the fixed frame 41 being disposed within the clamping block 14, and the sliding plate 42 being slidably connected within the fixed frame 41; a connecting rod 421 connecting the sliding plate 42 and the spring arc block 441; a gas supply pipe 46, a diversion pipe 461, and a jet plate 47, the gas supply pipe 46 being connected to the fixed frame 41, and the jet plate 47 being disposed on the side wall of the clamping block 14 and facing the steel ingot; wherein, the movement of the spring arc block 441 drives the sliding plate 42 to move within the fixed frame 41 through the connecting rod 421 to compress gas, and the compressed gas is ejected from the jet plate 47 through the gas supply pipe 46 and the diversion pipe 461, and the mechanical oscillation of the striking assembly 4 is further converted into the power of gas compression, realizing the self-made high-pressure gas. Without the need for complex external air pumps and pipelines, the tooling itself generates airflow by using the sliding plate 42 to compress the gas inside the fixed frame 41. This airflow, combined with the jet plate 47, blows away the loosened oxide scale debris, preventing it from getting stuck between the clamping surfaces and affecting the fit. This achieves integrated cleaning and clamping.

[0038] like Figures 1 to 9As shown, in one embodiment, the striking component 4 further includes a blocking block 45, which has an air inlet groove 451. The blocking block 45 is located at the connection between the fixed frame 41 and the air supply pipe 46 and is used to control the opening and closing of the air passage. The air supply pipe 46 is also provided with a ball rod 58 and an arc spring 581. When the ball rod 58 is rotated by an external force, it swings in conjunction with the arc spring 581 to disturb the airflow in the air supply pipe 46. Through the design of the blocking block 45, the gas first accumulates pressure in the fixed frame 41, and then releases it instantly when it moves to a specific position and aligns with the air inlet groove 451, forming a pulsed high-pressure airflow, which has a better cleaning effect than a continuous low-pressure airflow. At the same time, the swinging of the ball rod 58 in the air supply pipe 46 in conjunction with the arc spring 581 can disrupt the airflow direction and form turbulence, thereby blowing away stubborn debris on the uneven surface of the steel ingot from multiple angles.

[0039] like Figures 1 to 9 As shown, in one embodiment, the extrusion block 31 is further provided with a pushing assembly 5, which includes: a placement groove 51, which is opened inside the extrusion block 31; an oil storage pipe 52, which is disposed in the placement groove 51; a piston rod 1 521, which is connected to the sliding plate 42 and extends into the oil storage pipe 52; a piston rod 2 522, which is slidably connected to the oil storage pipe 52; a pushing plate 53, an extrusion plate 54, a rotating plate 55, and a pushing rod 561, all disposed in the placement groove 51; and a spring return rod 3 56, which is connected to the pushing plate 53 and the inner wall of the placement groove 51, for pushing the plate 53. Reset; wherein, the sliding plate 42 moves to drive the piston rod 521 to squeeze the medium in the oil storage pipe 52, driving the piston rod 522 to push the push plate 53, the push plate 53 drives the extrusion plate 54 to move and squeeze the pressure rod 541 set on the rotating plate 55, driving the rotating plate 55 to rotate; the rotating plate 55 is connected to the push rod 561 through the connecting rod 551, thereby driving the push rod 561 to extend out of the surface of the extrusion block 31. Utilizing the incompressibility and fluidity of the hydraulic oil in the oil storage pipe 52, the previous action is converted into a slight extension of the push rod 561. When the surface of the steel ingot has depressions or micro-unevenness, the push rod 561 can adaptively press against these areas, increasing the number of clamping contact points and multi-point contact, further improving friction and clamping stability.

[0040] like Figures 1 to 9 As shown, in one embodiment, the pushing component 5 further includes a connecting rod 57 and a push rod 571; the connecting rod 57 is connected to the pushing plate 53, and the push rod 571 is connected to the end of the connecting rod 57; when the pushing plate 53 moves, it drives the push rod 571 to press the ball rod 58 inside the air delivery pipe 46 to rotate. Through the connecting rod 57 and the push rod 571, the action of the pushing component 5 is mechanically connected in series with the airflow disturbance mechanism. This ensures that the ball rod 58 is only forcibly pushed to rotate to disturb the airflow at the critical moment when adaptive adjustment is being performed and clamping is imminent. This ensures that the timing of airflow disturbance is precise, avoids energy waste, and constitutes a tight mechanical logic closed loop.

[0041] The number of the above components is not limited. Those skilled in the art can set it freely according to actual needs, as long as the above components are installed at the corresponding connection positions.

[0042] Working principle: 1. During the hoisting positioning and preparation stage, the hoisting arm 11 at the top of the crossbeam 1 is connected to the hoisting equipment, and the entire tooling is hoisted to directly above the steel ingot to be clamped. The hydraulic cylinder 12 is activated, driving the fixed plates 13 on both sides to move the rows of clamping blocks 14 synchronously in opposite directions along the crossbeam 1 to perform the closing action.

[0043] 2. Automatic correction of ingot posture: During the inward movement of the clamping block 14, the roller 22 fixed on it presses against the inclined surface of the inclined push block 23. This mechanical linkage converts the horizontal displacement of the clamping block into the longitudinal extension movement of the inclined push block 23, causing it to contact the inclined ingot before the clamping block 14. Utilizing the accumulated force of the spring return rod 25 and the inclined surface thrust, the inclined push block 23 forcibly pushes the ingot back to its original position until the sidewall of the ingot is parallel and vertical to the clamping surface. After this, the roller 22 passes the highest point of the inclined surface to separate, and the inclined push block 23 stops moving. This step ensures that subsequent clamping changes from line contact to surface contact, eliminating the risk of clamping slippage caused by the ingot's tilt.

[0044] 3. The dual-locking gripping mechanism, combining side clamping and bottom lifting, operates as follows: the clamping block 14 continues to close, with its inner pressing block 31 abutting against the side wall of the steel ingot. As the clamping force increases, the pressing block 31 is compressed and retracts inward into the clamping block 14, forcing the spring return rod 32 to displace and accumulate elastic potential energy. This displacement, through the lever action of the rotating frame 34, drives the bottom sliding block 35 to extend outward to the bottom of the steel ingot. Subsequently, the pre-compressed spring block 36 releases its rebound force, tightly adhering to the bottom surface of the steel ingot. This achieves instant bottom lifting, upgrading the simple friction clamping to an L-shaped three-dimensional gripping mechanism combining side clamping and bottom lifting.

[0045] 4. Oxide Layer Breaking and Pulsed Airflow Blowing and Cleaning Actions: During the movement of the clamping block 14, the accompanying L-shaped rod 442 slides over the wavy surface of the concave-convex plate 43. The L-shaped rod 442 accumulates potential energy as it slides from the concave to the convex, and releases it instantaneously when it slides into the next concave, driving the spring-loaded arc-shaped block 441 to mechanically strike the surface of the steel ingot, causing the brittle oxide layer to break. Synchronous pneumatic cleaning logic: The inclined plane pushes the moving linkage 421 of the moving linkage 421, driving the sliding plate 42 to rise within the fixed frame 41 to compress gas. In conjunction with the blocking block 45 controlling the opening and closing of the air inlet slot 451, the air supply pipe 46 is connected the instant the air pressure reaches its peak. High-pressure gas is ejected from the jet plate 47 through the diverter pipe 461, precisely blowing away the loosened oxide scale. The mechanical striking and pneumatic blowing are carried out simultaneously, effectively removing the hard oxide layer on the surface of the steel ingot and avoiding the decrease in clamping force caused by oxide scale breakage.

[0046] 5. Airflow disturbance: The downward movement of the push plate 53 drives the push rod 571 to mechanically trigger the rotation of the ball rod 58 and compress the arc spring 581. When the push rod 571 slips, the ball rod 58 generates high-frequency up-and-down oscillation under the action of elasticity, forming turbulence in the air supply pipe 46, which enhances the airflow's ability to peel off stubborn debris.

[0047] 6. Adaptive Fitting: The upward movement of the sliding plate 42 compresses the hydraulic medium in the oil reservoir 52 via the piston rod 521, hydraulically driving the piston rod 522 and subsequent connecting rod assemblies 53-55 to move, ultimately compressing the gas in the placement groove 51. This gas pressure flexibly pushes the push rod 561 outward, allowing it to adaptively fit the uneven texture of the steel ingot surface. Utilizing a liquid-gas hybrid transmission to achieve flexible compensation solves the problem of poor contact caused by the rough surface of the steel ingot casting, further enhancing the clamping friction.

[0048] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A clamping fixture for holding multiple steel ingots in a row for casting, characterized in that, include: A crossbeam (1) and a gripping mechanism (3) are provided. A lifting arm (11) is provided on the top of the crossbeam (1). A hydraulic cylinder (12) is fixedly connected to the left and right sides of the crossbeam (1). A fixed plate (13) is connected to the output end of the hydraulic cylinder (12). A clamping block (14) is slidably connected to the bottom of the crossbeam (1) and connected to the fixed plate (13). It is driven by the hydraulic cylinder (12) to move along the crossbeam (1). A leveling mechanism (2) is provided between the clamping block (14) and the crossbeam (1). The leveling mechanism (2) is configured such that during the process of the clamping block (14) moving to clamp the steel ingot, the clamping block (14) extends inward first to contact and correct the tilted steel ingot through mechanical linkage by means of the moving stroke of the clamping block (14). Then it separates from the steel ingot or remains relatively stationary, allowing the clamping block (14) to continue to move and clamp the steel ingot.

2. The clamping fixture for row casting of multiple steel ingots according to claim 1, characterized in that, The leveling mechanism (2) includes: a connecting rod (21) and a roller (22), the connecting rod (21) being fixed on the clamping block (14), and the roller (22) being rotatably connected to the inside of the connecting rod (21); and an inclined push block (23) being slidably connected to the bottom of the crossbeam (1) and having an inclined surface for the roller (22) to roll. It also includes a connecting plate (24) and a spring return rod (25). The connecting plate (24) connects two opposing inclined push blocks (23), and the spring return rod (25) connects the connecting plate (24) and the crossbeam (1). The clamping block (14) moves to drive the roller (22) to press the inclined surface of the inclined push block (23), and drives the inclined push block (23) to move to correct the steel ingot.

3. The clamping fixture for multiple steel ingots cast in rows according to claim 1, characterized in that, The gripping mechanism (3) includes: a squeezing block (31) slidably connected to the inner wall of the clamping block (14); a sliding block (35) and a spring block (36) disposed at the bottom of the clamping block (14); and a linkage component connecting the squeezing block (31) and the sliding block (35). When the squeezing block (31) is squeezed back into the clamping block (14) by the steel ingot, the linkage component drives the sliding block (35) to extend, thereby driving the spring block (36) to support the bottom of the steel ingot.

4. The clamping fixture for row casting of multiple steel ingots according to claim 3, characterized in that, The linkage components of the gripping mechanism (3) include a fixed frame (33), a rotating frame (34), and a spring reset rod (32); the fixed frame (33) is fixed inside the clamping block (14), and the rotating frame (34) is rotatably connected to the fixed frame (33); one end of the rotating frame (34) is engaged with the spring reset rod (32) pushed by the squeeze block (31), and the other end is engaged with the sliding block (35).

5. The clamping fixture for multiple steel ingots cast in rows according to claim 1, characterized in that, The clamping block (14) is also provided with a striking component (4), which includes: a concave-convex plate (43) fixedly connected to the bottom of the crossbeam (1); a second fixing frame (44), a spring arc block (441) and an L-shaped rod (442). The second fixing frame (44) is fixed on the clamping block (14), the spring arc block (441) is rotatably connected to the second fixing frame (44), and the L-shaped rod (442) is fixed on the spring arc block (441). When the clamping block (14) moves, the L-shaped rod (442) slides across the protrusions and depressions on the surface of the concave-convex plate (43), causing the spring arc block (441) to strike the surface of the steel ingot.

6. The clamping fixture for multiple steel ingots cast in rows according to claim 5, characterized in that, The striking assembly (4) further includes: a fixed frame (41) and a sliding plate (42), the fixed frame (41) being disposed within the clamping block (14), and the sliding plate (42) being slidably connected within the fixed frame (41); a connecting rod (421) connecting the sliding plate (42) and the spring arc block (441); an air supply pipe (46), a diversion pipe (461), and a jet plate (47), the air supply pipe (46) being connected to the fixed frame (41), and the jet plate (47) being disposed on the side wall of the clamping block (14) and facing the steel ingot; wherein, the movement of the spring arc block (441) drives the sliding plate (42) to move within the fixed frame (41) via the connecting rod (421) to compress gas, and the compressed gas is ejected from the jet plate (47) via the air supply pipe (46) and the diversion pipe (461).

7. The clamping fixture for row casting of multiple steel ingots according to claim 6, characterized in that, The striking component (4) also includes a blocking block (45), on which an air inlet groove (451) is provided. The blocking block (45) is located at the connection between the fixed frame (41) and the air supply pipe (46) and is used to control the opening and closing of the air passage. The air supply pipe (46) is also provided with a ball rod (58) and an arc spring (581). When the ball rod (58) is rotated by an external force, it swings in conjunction with the arc spring (581) to disturb the airflow in the air supply pipe (46).

8. The clamping fixture for row casting of multiple steel ingots according to claim 6, characterized in that, The extrusion block (31) is also provided with a pushing assembly (5), which includes: a placement groove (51) opened inside the extrusion block (31); an oil storage pipe (52) disposed in the placement groove (51); a piston rod one (521) connected to the sliding plate (42) and extending into the oil storage pipe (52); a piston rod two (522) slidably connected to the oil storage pipe (52); a pushing plate (53), an extrusion plate (54), a rotating plate (55) and a pushing rod (561) all disposed in the placement groove (51); and a spring return rod three (56) connected to the pushing plate (53). 3) and the inner wall of the placement groove (51) are used to push the plate (53) to reset; wherein, the sliding plate (42) moves to drive the piston rod one (521) to squeeze the medium in the oil storage pipe (52), and drives the piston rod two (522) to push the push plate (53), the push plate (53) drives the extrusion plate (54) to move and extrude the pressure rod (541) set on the rotating plate (55), and drives the rotating plate (55) to rotate; the rotating plate (55) is connected to the push rod (561) through the connecting rod two (551), thereby driving the push rod (561) to extend out of the surface of the extrusion block (31).

9. A clamping fixture for row casting of multiple steel ingots according to claim 8, characterized in that, The push assembly (5) also includes a connecting rod three (57) and a push rod (571); the connecting rod three (57) is connected to the push plate (53), and the push rod (571) is connected to the end of the connecting rod three (57); when the push plate (53) moves, it drives the push rod (571) to press the ball rod (58) inside the gas pipe (46) to rotate.

10. A method of using a clamping fixture for multiple steel ingots cast in rows, as described in any one of claims 1-9, characterized in that: Includes the following steps, S1: Equipment installation: The entire beam (1) is lifted by hooking it onto the lifting arm (11) using the crane hook; S2: Steel ingot straightening: The crossbeam (1) is hoisted above the steel ingot, and then the hydraulic cylinder (12) is activated to extend and push the clamping block (14) to move, so that the roller (22) contacts the inclined surface of the inclined push block (23) and squeezes the inclined surface of the inclined push block (23) to bring the two inclined push blocks (23) closer to each other. When the inclined push block (23) contacts the inclined steel ingot during the movement process, it will push the steel ingot to move until the side wall of the steel ingot is parallel to the side wall of the clamping block (14); S3: Steel ingot clamping: After the steel ingot is straightened, the clamping block (14) continues to move and contact the steel ingot to clamp it.

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