Polishing device for steel structure machining

Abstract

The invention discloses a polishing device for steel structure machining, and relates to the technical field of polishing for steel structure machining, the polishing device comprises a rack, L-shaped beams arranged in frames on the two sides of the top of the rack and conveyors installed on the two sides of the rear portions of the L-shaped beams, and a conveying compression roller is arranged between two vertical plates; a pressure applying assembly is mounted on the vertical plate; a reciprocating seat is arranged between the L-shaped beams, a lower grinding wire roller is installed at the rear end of the first rotating shaft, and an upper grinding mechanism is installed on the upper portion of the rear end face of the reciprocating seat. A dust blowing assembly is mounted on the inner frame wall of the rack; a side groove polishing mechanism is installed on the lower portion of the rack. Through cooperation of the upper grinding mechanism and the side groove grinding mechanism, all-directional grinding of H-shaped steel or I-shaped steel is achieved, efficient grinding operation of a steel structure side groove can be achieved, and the grinding quality and efficiency are improved; the lower grinding screw roller and the upper grinding screw roller can conduct double grinding on the upper end face and the lower end face of the steel structure at the same time, and the grinding quality is effectively improved; and all-around refined grinding of the steel structure is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding for steel structure processing, and particularly to a grinding device for steel structure processing. Background Art

[0002] In the field of steel structure processing, grinding, as a key process, plays a crucial role in improving the surface quality of steel structures and ensuring subsequent processing and service performance. In the early days, steel structure grinding mainly relied on manual operation with grinding tools. This method not only had extremely high labor intensity, but also the grinding quality highly depended on the experience and technical level of workers, making it difficult to ensure the consistency and efficiency of grinding. With the development of industrial automation, mechanical grinding equipment has gradually emerged. From simple hand-held electric grinders to early fixed grinding equipment, the grinding efficiency has been improved to a certain extent, and the labor intensity has been reduced; However, limited by design concepts and technical levels, these devices have many deficiencies in terms of function integration, adjustment flexibility, and automation level, and are difficult to meet the growing diverse processing requirements of steel structures; for example, when grinding H-shaped steel structures, I-beams, C-channel steel structures and other channel steel structures, since the grinding wheels of the grinding device cannot extend into the rusty side grooves of the steel structure, it is impossible to grind the rust in the side grooves, affecting the structural strength of the steel structure in subsequent use. At the same time, this kind of grinding operation is time-consuming and inefficient; moreover, traditional steel structure grinding equipment lacks an effective automated coordination mechanism in the conveying and grinding links; during the actual operation process, operators need to frequently carry and adjust the workpiece position, which not only consumes a large amount of manpower and time, but also increases the risk of human error; therefore, the above problems need to be improved and solved. Summary of the Invention

[0003] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a grinding device for steel structure processing.

[0004] To achieve the above object, the present invention adopts the following technical solutions: A grinding device for steel structure processing, comprising a frame, L-shaped beams provided in the frame top side frames on both sides, and conveyors horizontally installed on both sides behind the L-shaped beams. Vertical plates are installed on the outer sides of the crossbeam sections of the L-shaped beams and on both sides of the rear end of the frame. Between the front and rear vertical plates, conveying pressure rollers are longitudinally rotatably provided, and the conveying pressure rollers are located above the conveyors; A pressing component for adjusting the height of the conveying pressure rollers is installed on the vertical plates; An L-shaped reciprocating seat is longitudinally slidable between the two L-shaped beams. On both sides of the lower part of the rear end face of the reciprocating seat, first rotating shafts are rotatably provided. At the rear end of the first rotating shaft, a long-axis-shaped lower grinding wire roller is installed. On both sides inside the rear end of the reciprocating seat, high-speed motors for driving the first rotating shafts are installed; An upper grinding mechanism for grinding the top of the steel structure is installed on the upper part of the rear end face of the reciprocating seat; A dust blowing component is installed on the inner frame wall of the front end of the reciprocating seat; A side groove grinding mechanism is installed on the lower part of the frame between the two conveyors.

[0005] Preferably, guide tubes are installed on the tops of the inner side faces of the vertical plates. The pressing component includes an adjusting screw vertically movably provided inside the guide tubes, a roller seat vertically fixed to the bottom end of the adjusting screw, a spring sleeved on the adjusting screw, and an adjusting nut screwed to the top end of the adjusting screw. The end of the conveying pressure roller is rotatably connected to the roller seat; The spring is located between the roller seat and the guide tube. At the bottom end of the adjusting screw above the roller seat, a supporting nut for adjusting the spring elasticity is screwed.

[0006] Preferably, the upper grinding mechanism includes lifting openings opened on both sides of the rear end of the reciprocating seat, a lifting frame installed at the rear end of the lifting openings, a driving seat movably installed between the two lifting frames, second rotating shafts installed at both ends behind the driving seat, upper grinding wire rollers installed at the rear ends of the second rotating shafts, and a pair of transmission gears installed inside the front end of the driving seat. The driving seat is U-shaped; The transmission gears are sleeved on the front ends of the second rotating shafts, and a servo motor for driving one of the second rotating shafts is installed on the front end face of the driving seat; A electric push cylinder for driving the driving seat to lift is vertically provided on the top of the lifting frame, and the bottom of the telescopic end of the electric push cylinder is fixedly connected to the top of the driving seat.

[0007] Preferably, the side groove grinding mechanism includes a lifting plate provided at the rear of the inside of the frame, H-shaped support seats horizontally fixed to both sides of the lifting plate, a transmission box installed on the top of the H-shaped support seats, elliptical openings vertically penetrating and opened at the front and rear ends of the middle of the top surface of the transmission box, a third rotating shaft vertically slidably provided inside the elliptical openings, and side grinding wire rollers installed on the upper part of the third rotating shaft. A transmission component for synchronously rotating the side grinding wire rollers is provided inside the transmission box; An installation groove is opened at the front end of the top surface of the lifting plate, a fixed groove is installed at the rear end of the bottom surface of the reciprocating seat, and hinge seats are installed inside both the installation groove and the fixed groove. A reciprocating push rod is movably hinged between the two hinge seats.

[0008] Preferably, sliding rails are provided on both sides of the two elliptical openings on the bottom surface of the transmission case. A sliding seat is slidably clamped between the sliding rails on both sides of the elliptical opening. The bottom end of the third rotating shaft passes through the inside of the sliding seat movably, and a transmission motor for driving the third rotating shaft is installed on the sliding seat at the front end of the bottom surface of the transmission case.

[0009] Preferably, the transmission assembly includes adjustment grooves opened at the front and rear ends of the inner top surface of the transmission case, elliptical ring seats installed inside the adjustment grooves corresponding to the elliptical openings, and pulleys sleeved on the shaft bodies of the third rotating shafts below the elliptical ring seats. A transmission belt is sleeved between the pulleys of the two third rotating shafts. A tensioning groove is horizontally opened on the inner top surface of the transmission case between the two adjustment grooves. A tensioning seat is slidably provided in the tensioning groove. Push belt rollers for pushing the transmission belt are rotatably provided on both sides of the bottom of the tensioning seat. The transmission belt is located between the two push belt rollers. An electric push rod is horizontally provided at the other end inside the tensioning groove, and the telescopic end of the electric push rod is fixedly connected to the tensioning seat.

[0010] Preferably, a pair of spaced-through openings are longitudinally opened between the two adjustment grooves. A bidirectional lead screw is longitudinally rotatably provided in one of the through openings, and a guide rod is longitudinally installed in the other through opening. A rectangular strip opening is horizontally penetrated on one side of the elliptical ring seat. An adjustment ring seat is longitudinally slidably provided inside the elliptical ring seat. The shaft body of the third rotating shaft passes through the inner ring of the adjustment ring seat and is rotatably connected to the adjustment ring seat through a bearing ring. Connecting blocks are sleeved at both ends of the bidirectional lead screw and the guide rod located inside the adjustment groove. Threaded holes are cooperatively opened on the connecting blocks on the bidirectional lead screw. The inner ends of the connecting blocks extend into the inner ring of the elliptical ring seat from the rectangular strip opening and are fixedly connected to the outer wall of the adjustment ring seat. A drive motor for driving the bidirectional lead screw is provided at the front end of the inner end surface of the transmission case.

[0011] Preferably, the dust blowing assembly includes an air injection seat installed in the middle of the inner wall at the front end of the frame, an air delivery pipe longitudinally installed in the middle of the rear end surface of the air injection seat, and a Z-shaped shape memory metal pipe installed at the rear end of the air delivery pipe. A slanting nozzle dust blowing nozzle is installed at the top of the rear end of the Z-shaped shape memory metal pipe. The blowing flat opening of the slanting nozzle dust blowing nozzle is inclined towards the direction of the steel structure to be polished. Telescopic air cylinders are longitudinally installed on both sides of the rear end surface of the air injection seat. Receiving channels are cooperatively opened on both sides of the front end surface of the reciprocating seat for the telescopic air cylinders, and the movable ends of the telescopic air cylinders are installed inside the receiving channels.

[0012] Preferably, a fixed plate is horizontally installed at the lower part of the frame. Hydraulic lifting cylinders for reciprocating lifting of the lifting plate are installed on both sides of the middle of the top surface of the fixed plate, and the telescopic ends of the hydraulic lifting cylinders are fixedly connected to the bottom surface of the lifting plate. Guide columns are vertically and movably penetrated through the four corners of the bottom surface of the transmission case, and the bottom ends of the guide columns are fixedly connected to the top surface of the fixed plate. The top ends of a part of the guide columns are fixedly connected to the frame, and the top ends of the other part of the guide columns are fixedly connected to the L-shaped beam.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the cooperation of the upper grinding mechanism and the side groove grinding mechanism, the present invention facilitates the realization of all-round grinding of H-shaped steel or I-shaped steel, and can achieve efficient grinding operation of the side grooves of steel structures, improving the grinding quality and efficiency; the device integrates a lower grinding wire roller, an upper grinding mechanism and a side groove grinding mechanism; during the grinding process, the lower grinding wire roller and the upper grinding wire roller can simultaneously perform double-sided grinding on the upper and lower end faces of the steel structure, and the reciprocating seat drives them to achieve front-back pulling type end face grinding, which not only improves the applicability of grinding, but also can push off the rust slag, making the ground surface more uniform and smooth; the side groove grinding mechanism drives components such as a lifting plate to reciprocate up and down through a hydraulic lifting cylinder to grind the side grooves and sides of the steel structure, avoiding the problem of burrs easily appearing in the grinding of the transmission fixed points, and effectively improving the grinding quality; multiple grinding parts work together, greatly improving the grinding efficiency and realizing all-round fine grinding of the steel structure; The present invention has the function of efficient dust blowing assistance: the dust blowing assembly is an important part of improving the grinding quality and efficiency; the reciprocating movement of the reciprocating seat drives the telescopic air pump to pump air into the air seat, and the high-pressure air flow is blown onto the steel structure from the bias nozzle dust blowing nozzle through the air delivery pipe and the Z-shaped memory metal pipe, which can timely blow off the rust slag ground, prevent the rust slag from remaining and affecting the subsequent grinding, ensure the continuity of the grinding process, and further improve the overall grinding efficiency and quality; The present invention can be flexibly adjusted to meet the needs of diverse processing; the height and spacing of the parts to be ground can be adjusted: through the pressing assembly, according to the thickness of the steel structure, the pressing height and pressing force of the conveying pressure roller can be accurately adjusted through the adjusting nut and the supporting nut to ensure stable conveying and grinding of steel structures with different thicknesses; the electric push cylinder of the upper grinding mechanism can drive the driving seat to lift and adjust according to the thickness of the steel structure, so that the upper grinding wire roller can adapt to steel structures of different specifications; the driving motor of the side groove grinding mechanism can drive the bidirectional lead screw to rotate, adjust the spacing between the two adjusting ring seats, and thus realize the adjustment of the spacing between the two side grinding wire rollers on the same transmission box to meet the grinding requirements of steel structures with different widths, greatly enhancing the adaptability of the device to diverse processing requirements; The present invention has the function of adjusting the transmission stability: after adjusting the spacing of the third rotating shafts, the electric push rod can drive the tight belt seat to move to tighten or loosen the transmission belt, improving the transmission stability between the two third rotating shafts, ensuring the stable operation of the side grinding wire roller in different adjustment states, and further enhancing the reliability of the device under diverse processing requirements; The present invention can optimize the operation process and reduce the labor intensity; through automated conveying and grinding: after the device is started, two conveyors drive the conveyor belts to rotate in the same direction, automatically conveying the steel structure to be ground placed on the top of one side conveyor belt towards the other side, and realizing automatic conveying in cooperation with the conveying pressure rollers; during the conveying process, each grinding mechanism grinds the steel structure in sequence, eliminating the need for manual frequent handling and adjustment, greatly reducing the labor intensity of the operators and optimizing the operation process; The present invention can achieve continuous grinding operations: from the preliminary grinding of the steel structure by two side grinding wire rollers on one side of the frame, to the double-sided grinding of the upper and lower end faces, and then to the final grinding by the side grinding wire rollers on the other side, the entire process realizes continuous grinding operations; the steel structure after grinding can also be automatically conveyed down from the device under the action of the conveyor, forming a coherent and efficient operation process, greatly improving the working efficiency of batch surface grinding of steel structures, while reducing manual intervention and labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention and form a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 is a first perspective schematic diagram of the overall structure grinding state of the present invention; Figure 2 is a second perspective schematic diagram of the overall structure grinding state of the present invention; Figure 3 is a first perspective schematic diagram of the local frame structure of the present invention; Figure 4 is a second perspective schematic diagram of the local frame structure of the present invention; Figure 5 is a schematic diagram of the grinding state structure of the upper grinding mechanism and the side groove grinding mechanism of the present invention; Figure 6 is a first perspective structure schematic diagram of the upper grinding mechanism and the side groove grinding mechanism of the present invention; Figure 7 is a second perspective structure schematic diagram of the upper grinding mechanism and the side groove grinding mechanism of the present invention; Figure 8 is a third perspective structure schematic diagram of the upper grinding mechanism and the side groove grinding mechanism of the present invention; Figure 9 is a fourth perspective structure schematic diagram of the upper grinding mechanism and the side groove grinding mechanism of the present invention; Figure 10 is a first perspective schematic diagram of the reciprocating seat and the side groove grinding mechanism of the present invention; Figure 11 is a second perspective schematic diagram of the reciprocating seat and the side groove grinding mechanism of the present invention; Figure 12 It is a third - perspective schematic diagram of the reciprocating seat and the side - groove grinding mechanism of the present invention; Figure 13 It is a first - perspective structural schematic diagram of the interior of the transmission box of the present invention; Figure 14 It is a second - perspective structural schematic diagram of the interior of the transmission box of the present invention; Figure 15 It is a third - perspective structural schematic diagram of the interior of the transmission box of the present invention; Figure 16 It is a fourth - perspective structural schematic diagram of the interior of the transmission box of the present invention; Figure 17 It is a first - perspective structural schematic diagram of the upper grinding mechanism and the reciprocating seat of the present invention; Figure 18 It is a second - perspective structural schematic diagram of the upper grinding mechanism and the reciprocating seat of the present invention; Figure 19 It is a third - perspective structural schematic diagram of the upper grinding mechanism and the reciprocating seat of the present invention; Figure 20 It is a fourth - perspective structural schematic diagram of the upper grinding mechanism and the reciprocating seat of the present invention; Figure 21 It is a structural schematic diagram of the reciprocating push rod, the reciprocating seat and the lifting plate of the present invention.

[0015] Numbers in the figure: 1, frame; 2, L - shaped beam; 3, conveyor; 4, vertical plate; 5, roller seat; 6, conveying pressure roller; 7, reciprocating seat; 8, first rotating shaft; 9, lower grinding wire roller; 10, lifting frame; 11, electric push cylinder; 12, driving seat; 13, second rotating shaft; 14, upper grinding wire roller; 15, servo motor; 16, lifting plate; 17, H - shaped support seat; 18, transmission box; 19, third rotating shaft; 20, side grinding wire roller; 21, fixing plate; 22, guide post; 23, hydraulic lifting cylinder; 24, air - injection seat; 25, air - delivery pipe; 26, telescopic air - injection pump; 27, angled nozzle dust - blowing nozzle; 28, reciprocating push rod; 29, elliptical ring seat; 30, adjusting ring seat; 31, bidirectional lead screw; 32, connecting block; 33, guide rod; 34, belt pulley; 35, transmission belt; 36, belt - tightening seat; 37, belt - pushing roller; 38, electric push rod; 39, driving motor; 40, sliding seat; 41, adjusting screw; 42, adjusting nut; 43, spring; 44, driving motor. Detailed implementation manners

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0017] Embodiment 1: Refer to Figures 1 to 21, A grinding device for steel structure processing, including a frame 1, L-shaped beams 2 arranged on both sides of the top frame of the frame 1, and conveyors 3 horizontally installed on both sides behind the L-shaped beams 2. Vertical plates 4 are installed on the outer sides of the crossbeam sections of the L-shaped beams 2 and on both sides of the rear end of the frame 1. Conveyor pressure rollers 6 are longitudinally rotatably arranged between the front and rear vertical plates 4, and the conveyor pressure rollers 6 are located above the conveyors 3; Pressure application components for adjusting the height of the conveyor pressure rollers 6 are installed on the vertical plates 4; An L-shaped reciprocating seat 7 is longitudinally slidable between the two L-shaped beams 2. First rotating shafts 8 are rotatably arranged on both sides of the lower part of the rear end face of the reciprocating seat 7. A long-axis-shaped lower grinding wire roller 9 is installed at the rear end of the first rotating shaft 8. The top height of the lower grinding wire roller 9 is one to three centimeters higher than the top surface height of the conveyor 3. High-speed motors for driving the first rotating shafts 8 are installed on both sides inside the rear end of the reciprocating seat 7; An upper grinding mechanism for grinding the top of the steel structure is installed on the upper part of the rear end face of the reciprocating seat 7; A dust blowing component is installed on the inner frame wall of the frame 1 at the front end of the reciprocating seat 7; A side groove grinding mechanism is installed at the lower part of the frame 1 between the two conveyors 3; During the grinding process, the lower grinding wire roller 9 and the upper grinding wire roller 14 can simultaneously perform double-sided grinding on the upper and lower end faces of the steel structure. The front and back sliding of the reciprocating seat 7 drives them to achieve front and back pulling type end face grinding, which not only improves the applicability of grinding, but also can push the rust slag off, making the ground surface more uniform and smooth; The side groove grinding mechanism drives components such as the lifting plate 16 to reciprocate up and down through the hydraulic lifting cylinder 23 to grind the side grooves and side edges of the steel structure, avoiding the problem that burrs are easily generated during grinding at the transmission fixed points, and effectively improving the grinding quality; Multiple grinding parts work together, greatly improving the grinding efficiency and achieving all-round fine grinding of the steel structure; In the present invention, guide tubes are installed at the tops of the inner side faces of the vertical plates 4. The pressure application component includes an adjustment screw 41 vertically movably arranged inside the guide tube, a roller seat 5 vertically fixed at the bottom end of the adjustment screw 41, a spring 43 sleeved on the adjustment screw 41, and an adjustment nut 42 screwed onto the top end of the adjustment screw 41. The end of the conveyor pressure roller 6 is rotatably connected to the roller seat 5; The spring 43 is located between the roller seat 5 and the guide tube. A supporting nut for adjusting the elastic force of the spring 43 is screwed onto the bottom end of the adjustment screw 41 above the roller seat 5.

[0018] Embodiment 2: It is basically the same as the technical solution of Embodiment 1, the difference is that, as Figure 9 , Figures 13 to 21As shown in the figure, the upper grinding mechanism includes lifting openings formed on both sides of the rear end of the reciprocating seat 7, a lifting frame 10 installed at the rear end of the lifting openings, a driving seat 12 movably installed between the two lifting frames 10, second rotating shafts 13 installed at both rear ends of the driving seat 12, an upper grinding wire roller 14 installed at the rear end of the second rotating shafts 13, and a pair of transmission gears installed inside the front end of the driving seat 12. The driving seat 12 is U-shaped; the transmission gears are sleeved on the front ends of the second rotating shafts 13, and a servo motor 15 for driving one of the second rotating shafts 13 is installed on the front end face of the driving seat 12; a power push cylinder 11 for driving the driving seat 12 to lift is vertically arranged on the top of the lifting frame 10, and the bottom of the telescopic end of the power push cylinder 11 is fixedly connected to the top of the driving seat 12.

[0019] In the present invention, the side groove grinding mechanism includes a lifting plate 16 arranged at the rear of the interior of the frame 1, H-shaped brackets 17 horizontally and fixedly connected to both sides of the lifting plate 16, a transmission box 18 installed on the top of the H-shaped brackets 17, an elliptical opening vertically penetrating through the front and rear ends of the middle part of the top surface of the transmission box 18, a third rotating shaft 19 vertically slidingly arranged inside the elliptical opening, and a side grinding wire roller 20 installed on the upper part of the third rotating shaft 19. The transmission box 18 is located inside the conveyor 3. The two transmission boxes 18 are located on both sides of the rear of the reciprocating seat 7, and the transmission box 18 is located between the conveyors 3. A transmission component for the synchronous rotation of the side grinding wire roller 20 is arranged inside the transmission box 18; an installation groove is formed at the front end of the top surface of the lifting plate 16, a fixed groove is installed at the rear end of the bottom surface of the reciprocating seat 7, and hinge seats are installed inside both the installation groove and the fixed groove. A reciprocating push rod 28 is movably hinged between the two hinge seats; a fixing plate 21 is horizontally installed at the lower part of the frame 1. Hydraulic lifting cylinders 23 for the reciprocating lifting of the lifting plate 16 are installed on both sides of the middle part of the top surface of the fixing plate 21, and the top of the telescopic end of the hydraulic lifting cylinder 23 is fixedly connected to the bottom surface of the lifting plate 16. Guide columns 22 are vertically and movably penetrated through the four corners of the bottom surface of the transmission box 18, and the bottom ends of the guide columns 22 are fixedly connected to the top surface of the fixing plate 21. The top ends of a part of the guide columns 22 are fixedly connected to the frame 1, and the top ends of the other part of the guide columns 22 are fixedly connected to the L-shaped beam 2; by precisely adjusting the pressing height and pressing force of the conveying pressure roller 6 through the adjusting nut 42 and the supporting nut, it is ensured that steel structures of different thicknesses can be stably conveyed and ground; the power push cylinder 11 of the upper grinding mechanism can drive the driving seat 12 to lift and adjust according to the thickness of the steel structure, so that the upper grinding wire roller 14 can adapt to steel structures of different specifications; the driving motor 39 of the side groove grinding mechanism can drive the bidirectional lead screw 31 to rotate, adjust the distance between the two adjusting ring seats 30, and thus realize the adjustment of the distance between the two side grinding wire rollers 20 on the same transmission box 18, meeting the grinding requirements of steel structures of different widths, and greatly enhancing the adaptability of the device to diverse processing requirements.

[0020] In the present invention, slide rails are provided on both sides of the two elliptical openings at the bottom surface of the transmission case 18. A sliding seat 40 is slidably clamped between the slide rails on both sides of the elliptical opening. The bottom end of the third rotating shaft 19 movably penetrates out from the inside of the sliding seat 40, and a transmission motor 44 for driving the third rotating shaft 19 is installed on the sliding seat 40 at the front end of the bottom surface of the transmission case 18; the transmission assembly includes adjustment grooves opened at the front and rear ends of the inner top surface of the transmission case 18, an elliptical ring seat 29 installed inside the adjustment grooves corresponding to the elliptical openings, and a pulley 34 sleeved on the shaft body of the third rotating shaft 19 below the elliptical ring seat 29. A transmission belt 35 is sleeved between the pulleys 34 of the two third rotating shafts 19. A tensioning groove is horizontally opened on the inner top surface of the transmission case 18 between the two adjustment grooves. A tensioning seat 36 is slidably arranged in the tensioning groove. Push belt rollers 37 for being pushed by the transmission belt 35 are rotatably arranged on both sides of the bottom of the tensioning seat 36. The transmission belt 35 is located between the two push belt rollers 37. An electric push rod 38 is horizontally arranged at the other end inside the tensioning groove, and the telescopic end of the electric push rod 38 is fixedly connected to the tensioning seat 36.

[0021] In the present invention, a pair of spaced-through openings are longitudinally opened between the two adjustment grooves. A bidirectional lead screw 31 is longitudinally rotatably arranged in one of the through openings, and a guide rod 33 is longitudinally installed in the other through opening. One side of the elliptical ring seat 29 horizontally penetrates a rectangular strip opening. An adjustment ring seat 30 is longitudinally slidably arranged inside the elliptical ring seat 29. The shaft body of the third rotating shaft 19 passes through the inner ring of the adjustment ring seat 30 and is rotatably connected to the adjustment ring seat 30 through a bearing ring. Connecting blocks 32 are sleeved at both ends of the bidirectional lead screw 31 and the guide rod 33 located in the adjustment grooves. Threaded holes are cooperatively opened in the connecting blocks 32 on the bidirectional lead screw 31. The inner ends of the connecting blocks 32 extend into the inner ring of the elliptical ring seat 29 from the rectangular strip opening and are fixedly connected to the outer wall of the adjustment ring seat 30. A driving motor 39 for driving the bidirectional lead screw 31 is arranged at the front end of the inner end surface of the transmission case 18; after adjusting the distance between the third rotating shafts 19, the electric push rod 38 can drive the tensioning seat 36 to move, so as to perform tensioning or loosening operations on the transmission belt 35, improving the transmission stability between the two third rotating shafts 19, ensuring that the side grinding wire rollers 20 can work stably under different adjustment states, and further enhancing the reliability of the device under diverse processing requirements.

[0022] Embodiment 3: It is basically the same as the technical solution of Embodiment 1, except that, as Figure 6 Figure to Figure 12As shown in the figure, the dust blowing assembly includes an air injection seat 24 installed in the middle of the inner wall at the front end of the frame 1, an air delivery pipe 25 longitudinally installed in the middle of the rear end face of the air injection seat 24, and a Z-shaped memory metal pipe installed at the rear end of the air delivery pipe 25. A deflector dust blowing nozzle 27 is installed at the top of the rear end of the Z-shaped memory metal pipe. The blowing flat opening of the deflector dust blowing nozzle 27 is inclined towards the direction of the steel structure to be polished. Telescopic air cylinders 26 are longitudinally installed on both sides of the rear end face of the air injection seat 24. Receiving holes are provided on both sides of the front end face of the reciprocating seat 7 to cooperate with the telescopic air cylinders 26, and the movable ends of the telescopic air cylinders 26 are installed inside the receiving holes. Guide chutes are longitudinally opened on the inner walls of the L-shaped beams 2 on both sides of the reciprocating seat 7. Sliding seats are slidably arranged inside the guide chutes. The sliding seats are fixedly connected to the reciprocating seat 7. A stable hole is provided in the middle of the front end face of the reciprocating seat 7 to cooperate with the air delivery pipe 25, and the rear end of the air delivery pipe 25 passes through the stable hole. The setting of the air delivery pipe 25 not only facilitates the blowing operation, but also improves the smoothness and stability of the reciprocating seat 7 during reciprocating movement. By the reciprocating movement of the reciprocating seat 7 in the front and rear directions, the telescopic air cylinders 26 are driven to inject air into the air injection seat 24. High-pressure air flows through the air delivery pipe 25 and the Z-shaped memory metal pipe and is blown from the deflector dust blowing nozzle 27 onto the steel structure, which can timely blow away the rust slag ground off, prevent the rust slag from remaining and affecting the subsequent grinding, ensure the continuity of the grinding process, and further improve the overall grinding efficiency and quality. Working principle: In this embodiment, the present invention also proposes a use method of a grinding device for steel structure processing, including the following steps: Step 1, first electrically connect each electrical component of the device to an external control device through wires respectively. Then, according to the thickness of the H-shaped steel structure to be ground, adjust the downward height and downward pressure of the conveying pressure roller 6 through the pressing component (adjust the downward height of the adjusting screw 41 on the guide pipe by adjusting the nut 42, and adjust the elastic coefficient of the spring 43 between the adjusting screw 41 and the guide pipe by the supporting nut); after completing the adjustment of the height and downward pressure of the conveying pressure roller 6, start the electric push cylinder 11 to drive the driving seat 12 to perform lifting adjustment according to the thickness of the steel structure. Step 2: Then, adjust the distance between the two third rotating shafts 19 on the transmission box 18 according to the width of the steel structure to be polished. Start the driving motor 39 to drive the bidirectional lead screw 31 to rotate. The rotation of the bidirectional lead screw 31 can drive the adjusting ring seat 30 fixed to the connecting block 32 to move, facilitating the adjustment of the distance between the two adjusting ring seats 30. When the distance between the adjusting ring seats 30 is adjusted, the distance between the third rotating shafts 19 can also be adjusted. Furthermore, the distance between the two side grinding wire rollers 20 on the same transmission box 18 can be adjusted, so as to be applicable to steel structures of different widths for the adjustment groove, facilitating the brush wires of the side grinding wire rollers 20 to extend into the side grooves of the H-shaped steel structure. After adjusting the distance between the third rotating shafts 19, start the electric push rod 38 to drive the tight belt seat 36 to move, and tighten or loosen the transmission belt 35 between the two push belt rollers 37 of the horizontally moving tight belt seat 36, facilitating the improvement of the transmission stability between the two third rotating shafts 19 through the transmission belt 35. Step 3: Then start the two conveyors 3 to drive the conveyor belts to rotate in the same direction. Then place the steel structure to be polished horizontally on the top of the conveyor 3 on one side of the frame 1. Then, under the action of the conveyor 3 and the conveying pressure roller 6, the steel structure to be polished can be automatically conveyed towards the other side. By starting the transmission motor 44 to drive one of the third rotating shafts 19 to rotate, the rotation of the third rotating shaft 19 drives the side grinding wire roller 20 to rotate. Then start the hydraulic lifting cylinder 23 to drive the lifting plate 16, the H-shaped support 17 and the transmission box 18 to perform reciprocating lifting operations. Through the reciprocating lifting of the lifting plate 16, under the action of the reciprocating push rod 28, the reciprocating seat 7 can be driven to perform reciprocating forward and backward sliding operations between the two L-shaped beams 2. Through the drive of the transmission component to drive the other third rotating shaft 19 to rotate, when the steel structure to be polished passes through the two side grinding wire rollers 20 on the left side of the frame 1, the side grooves and the sides on the front and rear end faces of the steel structure can be initially polished. Through the reciprocating lifting of the transmission box 18, the third rotating shaft 19 and the side grinding wire roller 20 can be driven to perform grinding operations during lifting, facilitating the improvement of the grinding operation for steel structures with different notch heights, and enabling the burr-free grinding of the edges of the steel structure, avoiding the situation of easy burrs at the transmission fixed points during grinding, and facilitating the direct dropping of the debris ground from the side grooves of the steel structure during the reciprocating lifting process. Step 4: After the pair of side grinding wire rollers 20 on the left side are used to perform preliminary grinding operations on the steel structure, the high-speed motor that is started drives the first rotating shaft 8 and the lower grinding wire roller 9 to rotate. The servo motor 15 and the transmission gears cooperate to drive the two second rotating shafts 13 to rotate in opposite directions, and then drive the two second rotating shafts 13 to drive the upper grinding wire roller 14 to rotate. When it passes through the cooperation of one side conveyor 3 and the conveying pressure roller 6, the steel structure that has been preliminarily ground on the side of the mechanism is continuously conveyed onto another conveyor 3. When the steel structure passes between the lower grinding wire roller 9 and the upper grinding wire roller 14, double grinding operations on the upper and lower end faces of the steel structure can be achieved; through the forward and backward sliding of the reciprocating seat 7, the high-speed rotating lower grinding wire roller 9 and the upper grinding wire roller 14 can be driven to perform forward and backward pulling type end face grinding operations on the steel structure, which can improve the applicability of the upper grinding wire roller 14 and the lower grinding wire roller 9 for grinding steel structures of different widths. And through the forward and backward reciprocating pulling type rotation grinding of the lower grinding wire roller 9 and the upper grinding wire roller 14, it is convenient to push down the rust slag ground from the top surface of the steel structure; and it can improve the uniformity of grinding the upper and lower end faces of the steel structure and the smoothness after grinding; Step 5: Through the forward and backward reciprocating movement of the reciprocating seat 7, the telescopic air pump 26 can be driven to continuously pump air into the air injection seat 24, and the high-pressure air flow inside the air injection seat 24 will pass through the cooperation of the air delivery pipe 25 and the Z-shaped shape memory metal pipe and be ejected from the air blowing flat mouth of the offset nozzle dust blowing nozzle 27 onto the steel structure (through the setting of the cooperation of the Z-shaped shape memory metal pipe, the blowing angle and height of the offset nozzle dust blowing nozzle 27 can be adjusted according to the size of the steel structure), which is convenient for further blowing and removing the rust slag ground from the surface of the steel structure; Step 6: After the double grinding of the upper and lower end faces of the steel structure is completed, the steel structure will move to another pair of side grinding wire rollers 20. Through the high-speed rotating and reciprocating lifting side grinding wire rollers 20, the final grinding operation on the front and rear side grooves of the steel structure can be achieved, effectively realizing the cleanliness and convenience of the grinding operation on the side grooves of the steel structure, and being able to achieve the purpose of continuously grinding the steel structure, improving the working efficiency of surface grinding and processing of a batch of steel structures. Finally, the ground steel structure will be automatically conveyed off this device under the action of another conveyor 3.

[0023] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A grinding device for steel structure processing, comprising a frame (1), L-shaped beams (2) arranged in the frame on both sides of the top of the frame (1), and conveyors (3) horizontally installed on both sides behind the L-shaped beams (2), characterized in that: Vertical plates (4) are installed on the outer sides of the tops of the crossbeam sections of the L-shaped beams (2) and on both sides of the rear ends of the frame (1). Conveyor pressure rollers (6) are longitudinally rotatably arranged between the front and rear vertical plates (4), and the conveyor pressure rollers (6) are located above the conveyor (3); A pressure application assembly for adjusting the height of the conveyor pressure rollers (6) is installed on the vertical plates (4). An L-shaped reciprocating seat (7) is longitudinally slidable between the two L-shaped beams (2). First rotating shafts (8) are rotatably arranged on both sides of the lower part of the rear end face of the reciprocating seat (7). A long-axis-shaped lower grinding wire roller (9) is installed at the rear end of the first rotating shaft (8). High-speed motors for driving the first rotating shafts (8) are installed on both sides inside the rear end of the reciprocating seat (7); An upper grinding mechanism for grinding the top of the steel structure is installed on the upper part of the rear end face of the reciprocating seat (7); A dust blowing assembly is installed on the inner frame wall of the frame (1) at the front end of the reciprocating seat (7); A side groove grinding mechanism is installed at the lower part of the frame (1) between the two conveyors (3).

2. A grinding device for steel structure processing according to claim 1, characterized in that: Guide tubes are installed on the tops of the inner side faces of the vertical plates (4). The pressure application assembly includes an adjusting screw rod (41) vertically movably arranged inside the guide tube, a roller seat (5) vertically fixed to the bottom end of the adjusting screw rod (41), a spring (43) sleeved on the adjusting screw rod (41), and an adjusting nut (42) screwed onto the top end of the adjusting screw rod (41). The end of the conveyor pressure roller (6) is rotatably connected to the roller seat (5); The spring (43) is located between the roller seat (5) and the guide tube, and a supporting nut for adjusting the elastic force of the spring (43) is screwed onto the bottom end of the adjusting screw rod (41) above the roller seat (5).

3. A grinding device for steel structure processing according to claim 1, characterized in that: The upper grinding mechanism includes lifting openings opened on both sides of the rear end of the reciprocating seat (7), a lifting frame (10) installed at the rear end of the lifting opening, a driving seat (12) movably installed between the two lifting frames (10), second rotating shafts (13) installed at both ends behind the driving seat (12), upper grinding wire rollers (14) installed at the rear ends of the second rotating shafts (13), and a pair of transmission gears installed inside the front end of the driving seat (12). The driving seat (12) is U-shaped; The transmission gears are sleeved on the front ends of the second rotating shafts (13), and a servo motor (15) for driving one of the second rotating shafts (13) is installed on the front end face of the driving seat (12); A electric push cylinder (11) for driving the driving seat (12) to lift is vertically arranged at the top of the lifting frame (10), and the bottom of the telescopic end of the electric push cylinder (11) is fixedly connected to the top of the driving seat (12).

4. A grinding device for steel structure processing according to claim 1, characterized in that: The side groove grinding mechanism includes a lifting plate (16) arranged at the rear inside of the frame (1), H-shaped brackets (17) horizontally and fixedly connected to both sides of the lifting plate (16), a transmission box (18) installed on the top of the H-shaped brackets (17), an elliptical opening vertically penetrating and opened at the front and rear ends of the middle of the top surface of the transmission box (18), a third rotating shaft (19) vertically slidably arranged inside the elliptical opening, and a side grinding wire roller (20) installed on the upper part of the third rotating shaft (19). A transmission component for the synchronous rotation of the side grinding wire roller (20) is arranged inside the transmission box (18); an installation groove is opened at the front end of the top surface of the lifting plate (16), a fixed groove is installed at the rear end of the bottom surface of the reciprocating seat (7), and hinge seats are installed inside both the installation groove and the fixed groove. A reciprocating push rod (28) is movably hinged between the two hinge seats.

5. A grinding device for steel structure processing according to claim 4, characterized in that: Sliding rails are arranged on both sides of the two elliptical openings at the bottom surface of the transmission box (18), and a sliding seat (40) is slidably clamped between the sliding rails on both sides of the elliptical opening. The bottom end of the third rotating shaft (19) movably penetrates out from inside the sliding seat (40), and a transmission motor (44) for driving the third rotating shaft (19) is installed on the sliding seat (40) at the front end of the bottom surface of the transmission box (18).

6. A grinding device for steel structure processing according to claim 5, characterized in that: The transmission component includes adjustment grooves opened at the front and rear ends of the inner top surface of the transmission box (18), elliptical ring seats (29) installed inside the adjustment grooves corresponding to the elliptical openings, and belt pulleys (34) sleeved on the shaft bodies of the third rotating shafts (19) below the elliptical ring seats (29). A transmission belt (35) is sleeved between the belt pulleys (34) of the two third rotating shafts (19). A tensioning groove is horizontally opened on the inner top surface of the transmission box (18) between the two adjustment grooves. A tensioning seat (36) is slidably arranged inside the tensioning groove. Push belt rollers (37) for pushing the transmission belt (35) are rotatably arranged on both sides of the bottom of the tensioning seat (36). The transmission belt (35) is located between the two push belt rollers (37). An electric push rod (38) is horizontally arranged at the other end inside the tensioning groove, and the telescopic end of the electric push rod (38) is fixedly connected to the tensioning seat (36).

7. A grinding device for steel structure processing according to claim 6, characterized in that: A pair of spaced-through openings are longitudinally opened between the two adjustment grooves. A bidirectional lead screw (31) is longitudinally rotatably arranged inside one through opening, and a guide rod (33) is longitudinally installed inside the other through opening. A rectangular strip opening is horizontally penetrated and opened on one side of the elliptical ring seat (29). An adjustment ring seat (30) is longitudinally slidably arranged inside the elliptical ring seat (29). The shaft body of the third rotating shaft (19) passes through the inner ring of the adjustment ring seat (30) and is rotatably connected to the adjustment ring seat (30) through a bearing ring. Connecting blocks (32) are sleeved on both ends of the bidirectional lead screw (31) and the guide rod (33) located inside the adjustment groove. Threaded holes are cooperatively opened on the connecting blocks (32) on the bidirectional lead screw (31). The inner ends of the connecting blocks (32) extend into the inner ring of the elliptical ring seat (29) from the rectangular strip opening and are fixedly connected to the outer wall of the adjustment ring seat (30). A driving motor (39) for driving the bidirectional lead screw (31) is arranged at the front end of the inner end surface of the transmission box (18).

8. A grinding device for steel structure processing according to claim 6, characterized in that: The dust blowing assembly includes an air injection seat (24) installed in the middle of the inner wall at the front end of the frame (1), an air delivery pipe (25) longitudinally installed in the middle of the rear end face of the air injection seat (24), and a Z-shaped memory metal pipe installed at the rear end of the air delivery pipe (25). A slanting nozzle dust blowing nozzle (27) is installed at the top of the rear end of the Z-shaped memory metal pipe. The blowing flat opening of the slanting nozzle dust blowing nozzle (27) is inclined towards the direction of the steel structure to be polished. Telescopic air pumps (26) are longitudinally installed on both sides of the rear end face of the air injection seat (24). Receiving channels are provided on both sides of the front end face of the reciprocating seat (7) to cooperate with the telescopic air pumps (26), and the movable ends of the telescopic air pumps (26) are installed inside the receiving channels.

9. A grinding device for steel structure processing according to claim 4, characterized in that: A fixed plate (21) is horizontally installed at the lower part of the frame (1). Hydraulic lifting cylinders (23) for reciprocating lifting of the lifting plate (16) are installed on both sides of the middle of the top surface of the fixed plate (21). The top of the telescopic end of the hydraulic lifting cylinder (23) is fixedly connected to the bottom surface of the lifting plate (16). Guide columns (22) are vertically and movably penetrated through the four corners of the bottom surface of the transmission box (18), and the bottom ends of the guide columns (22) are fixedly connected to the top surface of the fixed plate (21). The top ends of a part of the guide columns (22) are fixedly connected to the frame (1), and the top ends of the other part of the guide columns (22) are fixedly connected to the L-shaped beam (2).

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