A high-efficiency automatic polishing device for steel plate bevel

Abstract

The application discloses a kind of high-efficiency automatic polishing device for steel plate groove in the field of steel plate polishing processing, including automatic walking trolley, and automatic walking trolley is equipped with lifting platform, and lifting platform is vertically provided with door frame, and door frame is provided with plane polishing mechanism, the plane polishing mechanism includes two groups of plane polishing components corresponding to up and down, and the two vertical upright beams of the door frame are provided with inclined plane polishing mechanism, and the inclined plane polishing mechanism includes two groups of inclined plane polishing components corresponding to up and down, and the side to be polished of the steel plate to be polished is respectively provided with upper polishing plane, lower polishing plane and upper polishing inclined plane, lower polishing inclined plane, two groups of the plane polishing components are respectively set corresponding to upper polishing plane and lower polishing plane, and two groups of the inclined plane polishing components are respectively set corresponding to upper polishing inclined plane and lower polishing inclined plane.The application can automatically polish steel plate groove, and is widely used, safe and efficient.

Description

Technical Field

[0001] This invention belongs to the field of grinding equipment, and specifically relates to a high-efficiency automatic grinding device for beveling steel plates. Background Technology

[0002] The main body of the wind turbine tower is made of multiple thick steel plates rolled and welded together. Each steel plate needs to be processed before welding, such as beveling the edges of the steel plate and grinding the bevels. After the steel plate is cut by flame or plasma, a hardened layer and slag of 0.3mm to 1mm will be left on the bevel surface, which must be ground. The flatness and cleanliness of the bevel surface directly affect the strength and sealing of the welded joint, which is crucial to the overall quality of the subsequent products.

[0003] Currently, steel plate beveling grinding methods on the market are mainly divided into two categories: manual grinding and semi-automatic equipment grinding. The technical problems with manual grinding include: high labor intensity, low efficiency, and difficulty in adapting to the needs of large-scale production; heavy reliance on the skills and experience of operators, with grinding quality greatly affected by human factors; uneven grinding on the four sides of the bevel, resulting in inconsistent surface roughness and making it difficult to ensure consistent grinding quality; fatigue from prolonged operation, affecting grinding accuracy and production efficiency; and the generation of harmful particulate pollutants from grinding, which can damage health when workers are in close proximity to them for extended periods.

[0004] Technical problems with semi-automatic grinding equipment: Most of them are designed with fixed tracks, which cannot flexibly adjust the grinding direction according to the shape and size of different steel plates, resulting in poor adaptability; They lack effective anti-collision and anti-shaking mechanisms, which can easily cause equipment damage or scratches on the bevel surface during the grinding process; The grinding quality is unstable and it is difficult to meet the requirements of high-precision welding. As the manufacturing industry transforms towards intelligence and efficiency, various industries have placed higher demands on the precision, efficiency, and versatility of steel plate beveling. Developing a high-efficiency device that can automatically adapt to the shape of the steel plate, achieve all-round precise grinding, and has safety protection functions has become an urgent need for industry development.

[0005] Therefore, a high-efficiency automatic grinding device for steel plate beveling is proposed to address the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a highly efficient automatic grinding device for steel plate bevels, which can automatically and comprehensively grind all four sides of the steel plate bevel, adapt to the shape and size of the steel plate, has strong versatility, is safe and efficient, and avoids damage to the steel plate; it ensures the flatness and consistency of the bevel grinding, performs precise grinding, significantly improves the subsequent welding quality, and reduces the incidence of welding defects.

[0007] The objective of this invention is achieved as follows: A highly efficient automatic grinding device for steel plate beveling includes an automatic trolley that can move on the ground, a lifting platform installed on the trolley, and a portal frame vertically mounted on the lifting platform. The portal frame includes two vertical beams corresponding to each other, and a horizontal connecting beam is provided between the upper ends of the two beams. A flat grinding mechanism is provided on the portal frame, and the flat grinding mechanism includes two sets of vertically corresponding flat grinding components. An inclined grinding mechanism is provided between the two vertical beams of the portal frame, and the inclined grinding mechanism includes two sets of vertically corresponding inclined grinding components. Both the flat grinding mechanism and the inclined grinding mechanism are configured to correspond to the steel plate to be ground. The side of the steel plate to be ground is provided with an upper grinding plane, a lower grinding plane, an upper grinding inclined plane, and a lower grinding inclined plane. The two sets of flat grinding components are respectively configured to correspond to the upper grinding plane and the lower grinding plane, and the two sets of inclined grinding components are respectively configured to correspond to the upper grinding inclined plane and the lower grinding inclined plane.

[0008] In operation, the steel plate to be ground is fixed in place, while the automatic trolley moves on the ground. The trolley drives the planar grinding mechanism and the inclined grinding mechanism to move along the length of the bevel edge of the steel plate. The bevel edge of the steel plate is either straight or curved, allowing the grinding discs of the two corresponding planar grinding components to move and grind the upper and lower grinding surfaces of the steel plate's bevel, respectively. Similarly, the inclined grinding discs of the two corresponding inclined grinding components... Do not move the grinding device to grind the bevel of the steel plate. At the same time, pressure sensing components are installed on both sides of the portal frame. The pressure input end of the pressure sensing component is placed against the edge of the bevel of the steel plate. The pressure sensing component monitors the contact pressure in real time during the grinding process. When an abnormal obstacle is encountered or the pressure exceeds the preset threshold, an emergency stop or avoidance mechanism is immediately triggered to prevent the grinding device from rigidly colliding with the steel plate. This realizes the configuration of safety anti-collision devices for the flat grinding component and the bevel grinding component. Meanwhile, a steel plate thickness detection component is installed on the portal frame. The thickness measurement method is as follows: an automatic walking trolley moves, and the steel plate moves relative to the automatic walking trolley. When one edge of the steel plate enters between a pair of corresponding upper and lower lifting plates, a cylinder drives the lifting plate to move. The upper lifting plate moves down, and the lower lifting plate moves up. The upper and lower detection rods respectively press against the upper and lower surfaces of the steel plate. When the ends of the two detection rods move synchronously and align together, the thickness is zero. This is the maximum stroke of the cylinder output end. The greater the distance between the ends of the two detection rods, the greater the thickness of the steel plate. Based on this thickness measurement principle, combined with the stroke of the cylinder output end, the thickness of the steel plate can be calculated. In addition, an air pipe for sucking up the dust generated during the grinding process is installed on the front side of the lifting plate, making it cleaner, more environmentally friendly, and safer.

[0009] As a further improvement of the present invention, the steel plate to be ground is horizontally arranged, and the upper grinding plane and the lower grinding plane are respectively arranged on the upper surface and the lower surface of the steel plate to be ground. On the grinding side of the steel plate to be ground, the upper grinding inclined surface is arranged near the edge of the upper grinding plane, and the lower grinding inclined surface is arranged near the edge of the lower grinding plane. The steel plate to be ground is located between the upper and lower sets of plane grinding components.

[0010] The upper and lower grinding bevels are symmetrically arranged, and the upper grinding plane, lower grinding plane, upper grinding bevel, and lower grinding bevel are all located at the edge of the steel plate bevel.

[0011] As a further improvement of the present invention, two vertically corresponding fixed supports are provided on any upright beam of the portal frame. The two sets of the plane grinding components are respectively set on the two fixed supports. The plane grinding component includes a movable seat that is vertically connected to the corresponding fixed support. A plane grinding motor is vertically arranged on the movable seat. The output end of the plane grinding motor faces the steel plate to be ground and is provided with a plane grinding disc. An elastic pressing mechanism is provided between the movable seat and the plane grinding motor. The plane grinding discs of the upper and lower plane grinding motors are respectively set to correspond to the upper grinding plane and the lower grinding plane of the steel plate to be ground. Each fixed stand is equipped with a linear drive mechanism corresponding to its movable stand. The drive end of the linear drive mechanism is connected to the movable stand. The linear drive mechanism can be a cylinder, a linear motor, an electric push rod, or a lead screw assembly. The cylinder, linear motor, and electric push rod can be directly installed on the fixed stand. The lead screw assembly can be installed in a slot cut into the fixed stand. The linear drive mechanism drives the movable stand to move up and down, adjusting the height of the flat grinding disc. The flat grinding discs of the upper and lower flat grinding motors grind the upper and lower grinding surfaces respectively.

[0012] As a further improvement of the present invention, the elastic clamping mechanism includes a dovetail-shaped guide rail body arranged along the length direction of the movable seat. The dovetail-shaped guide rail body is disposed on the outer side of the movable seat. The movable seat has a mounting groove, which is vertically arranged and extends through the movable seat and the dovetail-shaped guide rail body along the thickness direction. At least two parallel guide rods are arranged along the length direction in the mounting groove of the movable seat. Each guide rod near the end of the steel plate to be ground is fixedly fitted with a limiting sleeve. Each guide rod in the mounting groove is movably connected to a clamping block. The clamping block has a corresponding clamping block for each guide rod. Each guide rod has a vertically penetrating guide groove, and the guide rod is fitted through the corresponding guide groove. A spring is fitted around the outer circumference of each guide rod, with both ends of the spring elastically abutting against the inner wall of the mounting groove of the clamping block and the first movable seat. The other side of the clamping block is in contact with the end face of the limiting sleeve. A vertically arranged clamping seat plate is movably connected to the dovetail-shaped guide rail of the first movable seat. A dovetail-shaped guide groove matching the dovetail-shaped guide rail is opened on the rear side of the clamping seat plate. The clamping block is fixedly connected to the clamping seat plate, and the flat grinding motor is vertically mounted on the corresponding clamping seat plate. The clamping seat plate is movably connected to the first movable seat via the dovetail-shaped guide rail, and also movably connected to the guide rod via the clamping block. The spring presses the clamping block against the limiting sleeve, and the spring presses the clamping seat plate tightly, ensuring that the flat grinding disc of the flat grinding motor is in close contact with the steel plate for grinding. This allows the flat grinding disc to elastically float and grind the steel plate, avoiding rigid contact and providing protection.

[0013] As a further improvement of the present invention, the bevel grinding assembly includes two outer mounting plates respectively fixed to the inner sides of two vertical beams of the portal frame. The two outer mounting plates are symmetrically arranged left and right. Two parallel inner fixing rods are arranged horizontally between the two outer mounting plates. Corresponding to the two inner fixing rods, two parallel outer moving rods are arranged horizontally. A vertical distance is left between the outer moving rods and the outer mounting plates. The two outer moving rods correspond to the two inner fixing rods and are of equal length. Two symmetrically distributed main swing connecting rods are hinged to each inner fixing rod. The other ends of the two main swing connecting rods of the inner fixing rods extend outward from the outer mounting plate and are respectively hinged to the left and right ends of the corresponding outer moving rods. Two symmetrically distributed longitudinal driven connecting rods are arranged between the two outer moving rods. The front and rear ends of each driven connecting rod are respectively connected to the two outer moving rods. Two symmetrically distributed, forward-extending driven connecting rods are hinged to the outer moving rod on the front side near the steel plate to be ground. The ends of the driven connecting rods are hinged to a forward-extending driven connecting rod 3 via a transverse pin. There is a vertical gap between the driven connecting rods 1, 2, and 3 and the outer mounting plate. An inward-extending secondary swing connecting rod is also hinged to the pin. The end of the driven connecting rod 3 is also hinged to an inward-extending secondary swing connecting rod via a transverse pin. The inward end of each secondary swing connecting rod is hinged to the corresponding outer mounting plate via a transverse mounting pin. Each main swing connecting rod and each secondary swing connecting rod is parallel and of equal length. The main swing connecting rods and secondary swing connecting rods in the left and right rows are respectively set to correspond to the two outer mounting plates. A flipping mechanism is provided between the connecting rods on the left and right sides. A driving mechanism is provided corresponding to the inner fixed rod and the outer moving rod. Driven link one, driven link two, and driven link three, together with the two corresponding swing links below and the outer mounting plate, form three sets of parallelogram linkage mechanisms. A drive mechanism is installed on the diagonal of the first set of parallelogram linkage mechanisms. The drive mechanism drives the rear main swing link to swing around the inner fixed rod, thereby driving each driven link to move forward and driving the flipping mechanism to move back and forth. During the process of each main swing link and each auxiliary swing link driving each driven link to move, driven link one, driven link two, and driven link three are kept in a horizontal state.

[0014] As a further improvement of the present invention, the driving mechanism includes two mounting seats, which are respectively set on an outer moving rod and an inner fixed rod that are staggered in vertical height. An inclined screw is rotatably mounted on the rear mounting seat. One end of the screw passes through the rear mounting seat and is provided with a drive handwheel. The other end of the screw passes through the front mounting seat and is threadedly connected to it. A threaded hole is opened in the middle of the front mounting seat to allow the screw to pass through. The outer moving rod and the inner fixed rod, on which the mounting seats are mounted, are each composed of two segments. The two segments are symmetrically distributed on the left and right sides of the corresponding mounting seats. The end of the segment near the corresponding mounting seat is rotatably connected to it. A bearing groove is opened on the left and right sides of the threaded hole on the corresponding mounting seat. A support bearing is provided in the bearing groove. The support bearing is correspondingly set with the inward end of the corresponding segment. The screw is rotated by driving the handwheel, or the handwheel can be replaced with a servo motor to improve the degree of automation. The front mounting base moves along the screw axis to adjust the diagonal distance of the parallelogram linkage mechanism, thereby driving each main swing linkage to swing, so that each linkage mechanism gets power. Each auxiliary swing linkage rotates around the mounting pin shaft. The driven linkage one, driven linkage two, and driven linkage three maintain a horizontal state and move forward. When the screw rotates, the sub-rods also rotate relative to the mounting base.

[0015] As a further improvement of the present invention, the flipping mechanism includes two symmetrical inner mounting plates arranged longitudinally. A rear connecting plate is fixed between the rear parts of the two inner mounting plates, and two transverse front connecting rods are fixed between the front parts of the two inner mounting plates. The left and right ends of the front connecting rods pass through the two inner mounting plates respectively. The left and right protruding ends of the front connecting rods are symmetrically arranged. The outer end of the front auxiliary swing link is provided with a drive arm one that is inclined to its axis. The end of the drive arm one is hinged to a drive link. The front end of the driven link three is provided with a drive arm two that is inclined to its axis. The drive links and drive arms two on the left and right sides are symmetrically distributed on the outer sides of the two inner mounting plates. The drive links and drive arms two are respectively hinged to the corresponding protruding ends of the two front connecting rods. When the driven link three moves forward and the front auxiliary swing link swings forward, the drive links on the left and right sides and the drive arm two drive the two inner mounting plates to rotate. The front connecting rod, the rear connecting plate and the two inner mounting plates form a whole. The inclined surface grinding motor is installed on the rear connecting plate to realize the rotation movement. The rotation adjusts the angle and position of the inclined surface grinding disc to adapt to the position of the upper and lower inclined surfaces.

[0016] As a further improvement of the present invention, an installation base plate is provided on the inner side of the rear connecting plate, a fixed base plate is installed on the installation base plate, an adjustable seat plate that can move back and forth is movably connected to the fixed base plate, a dovetail guide groove matching the fixed base plate is provided on the adjustable seat plate, a screw groove for installing a screw drive mechanism is provided on the fixed base plate, the screw nut of the screw drive mechanism is connected to the adjustable seat plate, a movable seat two is installed on the adjustable seat plate, a bevel grinding motor is installed on the movable seat two, the output shaft of the bevel grinding motor is parallel to the length direction of the movable seat two, a bevel grinding disc is installed on the output shaft of the bevel grinding motor, an elastic clamping mechanism is also provided between the bevel grinding motor and the movable seat two, and the bevel grinding discs of the upper and lower bevel grinding motors are respectively set to the upper grinding bevel and the lower grinding bevel. The lead screw nut of the lead screw drive mechanism drives the adjusting seat plate to move back and forth along the fixed base plate, thereby adjusting the front and back position of the inclined grinding disc. The second moving seat is installed on the adjusting seat plate. The elastic pressing mechanism between the inclined grinding motor and the second moving seat is the same as the elastic pressing mechanism between the flat grinding motor and the first moving seat. The inclined grinding motor is also installed on a pressing seat plate. The elasticity of the spring allows the inclined grinding disc on the inclined grinding motor to be pressed and ground.

[0017] As a further improvement of the present invention, pressure sensing components are provided on the outer sides of the two vertical beams of the portal frame. Each pressure sensing component includes a pressure sensor body fixed to the corresponding beam. A push rod is provided at the pressure input end of the pressure sensor body, and the end of the push rod extends forward longitudinally and abuts against the edge of the side bevel of the steel plate to be ground. The contact pressure during the grinding process is monitored in real time by the pressure sensing components. When an abnormal obstacle is encountered or the pressure exceeds a preset threshold, an emergency stop or avoidance mechanism is triggered.

[0018] As a further improvement of the present invention, each of the push rods is rotatably connected to a roller at its end. The roller is attached to the bevel edge of the steel plate to be ground, forming a rolling contact. The rolling friction reduces frictional resistance and improves the smoothness of relative movement between the steel plate and the push rod, thereby fully applying the horizontal displacement of the steel plate to the push rod and improving the accuracy of pressure detection by the pressure sensing component.

[0019] As a further improvement of the present invention, two sets of steel plate thickness detection components are symmetrically arranged on the portal frame. Each set of steel plate thickness detection components includes two cylinders respectively installed on the outside of two vertical beams. The output ends of the two corresponding cylinders are arranged facing each other and are each connected to a lifting plate. The lifting plate extends forward and has a vertical detection rod at its end. The two corresponding detection rods point to the upper and lower surfaces of the steel plate to be ground, respectively. The two detection rods press against the upper and lower surfaces of the steel plate, respectively. When the ends of the two detection rods move synchronously and align together, the detected thickness is zero. The greater the distance between the ends of the two detection rods, the greater the thickness of the steel plate. Based on this thickness measurement principle, and combined with the stroke of the cylinder output ends, the thickness of the steel plate can be calculated.

[0020] As a further improvement of the present invention, a rectangular slide groove is provided at the front of the lifting plate, and a rotatable adjusting screw is installed longitudinally in the slide groove. The upper end of the detection rod is threadedly connected to the adjusting screw through a threaded hole. The adjusting screw passes through the detection rod, the outer periphery of the detection rod is rectangular, and the left and right sides of the detection rod are respectively in contact with the inner walls of the left and right sides of the slide groove. The end of the detection rod near the steel plate to be ground abuts against its surface. When the adjusting screw is rotated, the detection rod moves back and forth to adjust its position. A transmission groove is provided on the lifting plate behind the slide groove. The rear end of the adjusting screw is the driving end and extends into the transmission groove. A bevel gear pair is installed in the transmission groove. It is rotated by a vertical rotating shaft above the lifting plate. The rotation of the adjusting screw adjusts the back and forth position of the detection rod. The rotating shaft is rotatably connected to the housing above the lifting plate. The two bevel gears of the bevel gear pair are respectively installed at the rear end of the adjusting screw and the lower end of the rotating shaft.

[0021] As a further improvement of the present invention, each of the detection rods has a groove at one end near the steel plate to be ground, and a micro switch is installed in the groove. The micro switch acts as a limit switch to check whether the detection rod has moved into position and is in contact with the steel plate.

[0022] As a further improvement of the present invention, the two corresponding lifting plates on the left and right are each fixed to an air pipe. The air pipe is L-shaped, with its transverse section closed at the end and its longitudinal section serving as the suction end. Several branch pipes, spaced apart laterally, are connected to the transverse section of the air pipe, with the ends of the branch pipes corresponding to the bevel grinding position of the steel plate to be ground. The dust generated during the grinding process of the steel plate is sucked from the upper and lower sides through the branch pipes on the upper and lower air pipes, respectively.

[0023] As a further improvement of the present invention, multiple exhaust ports are provided on the transverse section of the air pipe. One end of the branch pipe is provided with a hollow adjusting ring, the hollow adjusting ring having an air chamber inside which is connected to the interior of the branch pipe. The adjusting ring is rotatably fitted onto the air pipe. An air intake port is provided on the inner peripheral side wall of the adjusting ring, and the air intake port is connected to the air chamber. The air intake port of each adjusting ring is respectively provided with corresponding exhaust ports. The other end of the branch pipe is provided with an extension pipe, which is fitted onto the branch pipe. When the adjusting ring is rotated and the exhaust port is connected to the air intake port, air is drawn out through the air intake end of the air pipe. The dust is discharged outward in sequence through the branch pipe, air chamber, air intake port, exhaust port, and air pipe, removing the grinding dust. The extension pipe extends the effective dust extraction length. When the adjusting ring is rotated and the exhaust port and air intake port are misaligned and not connected, dust removal stops.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through the coordinated design of the ground-based automatic walking trolley and four grinding motors, the automatic and all-round grinding of the four sides of the steel plate bevel (upper grinding plane, lower grinding plane, upper grinding slope and lower grinding slope) is realized, replacing the traditional manual and semi-automatic operation, greatly improving grinding efficiency, and meeting the progress requirements of large-scale production. 2. The equipment has an intelligent adjustment function, which can adapt to steel plates of different shapes and sizes. It is highly versatile and does not require separate equipment debugging for specific steel plates, thus reducing production preparation time and labor costs. 3. The pressure sensing component effectively protects the safety of the grinding equipment and the steel plate, and the adaptive moving grinding motor ensures the flatness and consistency of the bevel grinding, significantly improving the welding quality and reducing the incidence of welding defects; 4. Automated operations significantly reduce human intervention, lower the labor intensity of operators, protect their health, and provide strong support for the intelligent upgrading of the manufacturing industry. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0026] Figure 2 This is a side view of the present invention.

[0027] Figure 3 This is a schematic diagram showing the positional fit between the present invention and the steel plate to be ground.

[0028] Figure 4 This is a 3D view of the surface grinding mechanism and the bevel grinding mechanism on the portal frame.

[0029] Figure 5 This is a schematic diagram of the surface grinding motor and the moving base.

[0030] Figure 6This is a schematic diagram of the surface grinding motor and the moving base.

[0031] Figure 7 This is a top view of the flat grinding motor and the moving base.

[0032] Figure 8 for Figure 7 A sectional view along line AA.

[0033] Figure 9 This is a schematic diagram of the surface grinding motor and the moving base.

[0034] Figure 10 This is a schematic diagram of the inclined surface grinding mechanism.

[0035] Figure 11 This is a side view of the bevel grinding mechanism.

[0036] Figure 12 for Figure 11 BB-direction sectional view.

[0037] Figure 13 This is the front view of the bevel grinding mechanism.

[0038] Figure 14 for Figure 13 CC-direction sectional view.

[0039] Figure 15 for Figure 14 A magnified view of a portion of the image.

[0040] Figure 16 This is a schematic diagram of the inclined surface grinding mechanism.

[0041] Figure 17 This is a schematic diagram of the connecting rods between the two outer mounting plates of the bevel grinding mechanism.

[0042] Figure 18 This is a side view of each link.

[0043] Figure 19 This is a schematic diagram of the inclined grinding disc of the inclined grinding mechanism being flipped to a horizontal position.

[0044] Figure 20 This is a three-dimensional view showing the alignment of the portal frame with the steel plate thickness detection component.

[0045] Figure 21 This is a 3D view showing the mating position between the steel plate thickness detection component and the steel plate.

[0046] Figure 22 This is a side view of the mating position between the steel plate thickness detection component and the steel plate.

[0047] Figure 23 for Figure 22Enlarged view of point D in the middle.

[0048] Figure 24 This is a perspective view of the trachea of ​​the present invention.

[0049] Figure 25 This is a perspective view of the adjusting ring of the present invention.

[0050] Figure 26 This is a schematic diagram showing the interaction between the regulating ring and the trachea of ​​the present invention.

[0051] The components include: 1. Automatic walking trolley; 2. Lifting platform; 3. Gantry frame; 3a. Vertical beam; 3b. Connecting beam; 4. Steel plate; 4a. Upper grinding surface; 4b. Lower grinding surface; 4c. Upper grinding slope; 4d. Lower grinding slope; 5. Fixed stand; 6. Moving seat one; 6a. Guide rail body; 7. Surface grinding motor; 7a. Surface grinding disc; 8. Mounting slot; 9. Guide rod; 9a. Limiting sleeve; 10. Clamping block; 11. Guide groove; 12. Spring; 13. Clamping seat plate; 14. Main guide groove; 15. Outer mounting plate; 16. Inner fixed rod; 17. Outer moving rod; 18. Main swing linkage; 19. Driven linkage one; 20. Driven linkage two; 21. Pin one; 22. Driven linkage three; 22a. Drive arm two; 23. Secondary swing linkage; 23a. Drive arm one; 24. Pin two; 25. Mounting pin; 26. Mounting seat; 27. Screw. 27a Drive handwheel, 28 Threaded hole, 29 Branch rod body, 30 Support bearing, 31 Inner mounting plate, 32 Rear connecting plate, 33 Front connecting rod, 34 Drive connecting rod, 35 Mounting base plate, 36 Fixed base plate, 37 Adjusting seat plate, 38 Dovetail guide groove, 39 Screw groove, 40 Screw drive mechanism, 40a Screw nut, 41 Moving seat II, 42 Inclined grinding motor, 43 Inclined grinding disc, 44 Pressure sensor body, 45 Top rod, 46 Roller, 47 Cylinder, 48 Lifting plate, 49 Detection rod, 50 Slide groove, 51 Adjusting screw, 52 Micro switch, 53 Air pipe, 54 Branch pipe, 54a Adjusting ring body, 55 Exhaust port, 56 Air chamber, 57 Suction port, 58 Extension tube, 59 Laser rangefinder sensor, 60 Intelligent control system, 61 Linear drive mechanism. Detailed Implementation

[0052] This invention addresses the shortcomings of existing steel plate beveling and grinding equipment, such as low efficiency, poor adaptability, and unstable quality. It develops and designs a high-efficiency automatic grinding device for steel plate beveling by combining the shape characteristics and grinding process requirements of different types of steel plates.

[0053] like Figure 1-26The diagram shows a high-efficiency automatic grinding device for steel plate beveling. It includes an automatic trolley 1 that can move on the ground, a lifting platform 2 mounted on the trolley 1, and a portal frame 3 vertically mounted on the lifting platform 2. The portal frame 3 includes two vertical beams 3a corresponding to each other, and a horizontal connecting beam 3b between the upper ends of the two beams 3a. A surface grinding mechanism is installed on the portal frame 3, comprising two sets of vertically corresponding surface grinding components. The two vertical beams 3a of the portal frame 3... A bevel grinding mechanism is provided between the two surfaces. The bevel grinding mechanism includes two sets of bevel grinding components that are corresponding to each other. Both the planar grinding mechanism and the bevel grinding mechanism are set to the steel plate 4 to be ground. The side of the steel plate 4 to be ground is provided with an upper grinding plane 4a, a lower grinding plane 4b, an upper grinding bevel 4c, and a lower grinding bevel 4d. The two sets of planar grinding components are set to the upper grinding plane 4a and the lower grinding plane 4b, respectively. The two sets of bevel grinding components are set to the upper grinding bevel 4c and the lower grinding bevel 4d, respectively.

[0054] The steel plate 4 to be ground is horizontally arranged. The upper grinding plane 4a and the lower grinding plane 4b are respectively arranged on the upper and lower surfaces of the steel plate 4 to be ground. On the grinding side of the steel plate 4, the upper grinding inclined plane 4c is arranged near the edge of the upper grinding plane 4a, and the lower grinding inclined plane 4d is arranged near the edge of the lower grinding plane 4b. The steel plate 4 to be ground is located between the upper and lower sets of plane grinding components.

[0055] The upper grinding bevel 4c and the lower grinding bevel 4d are symmetrically arranged, and the upper grinding plane 4a, the lower grinding plane 4b, the upper grinding bevel 4c and the lower grinding bevel 4d are all located at the edge of the bevel of the steel plate 4.

[0056] Two vertically corresponding fixed supports 5 are vertically arranged on any upright beam 3a of the portal frame 3. Two sets of corresponding flat grinding components are respectively mounted on the two fixed supports 5. Each flat grinding component includes a movable seat 6 vertically connected to the corresponding fixed support 5. A flat grinding motor 7 is vertically mounted on the movable seat 6. The output end of the flat grinding motor 7 faces the steel plate 4 to be ground and is equipped with a flat grinding disc 7a. An elastic clamping mechanism is provided between the movable seat 6 and the flat grinding motor 7. The flat grinding discs 7a of the two flat grinding motors 7 correspond to the upper grinding plane 4a and the lower grinding plane 4b of the steel plate 4 to be ground, respectively. Each fixed support 5 is equipped with a linear drive mechanism 61 corresponding to its movable seat 6. The driving end of the linear drive mechanism 61 is connected to the movable seat 6. The linear drive mechanism 61 is a cylinder 47, a linear motor, an electric push rod, or a lead screw assembly. The cylinder 47, linear motor, and electric push rod can be directly mounted on the fixed support 5. Figure 8The linear drive mechanism 61 provides the vertical driving force for the moving seat 6 to move. The lead screw assembly can be slotted on the fixed stand 5 and installed in the slot. The linear drive mechanism 61 drives the moving seat 6 to move up and down, adjusting the height of the flat grinding disc 7a. The flat grinding discs 7a of the two flat grinding motors 7 grind the upper grinding plane 4a and the lower grinding plane 4b respectively.

[0057] The elastic clamping mechanism includes a dovetail-shaped guide rail 6a arranged along the length of the movable seat 6. The dovetail-shaped guide rail 6a is located on the outside of the movable seat 6. The movable seat 6 has a mounting groove 8, which is vertically arranged and extends through the movable seat 6 and the dovetail-shaped guide rail 6a along the thickness direction. At least two parallel guide rods 9 are arranged along the length of the mounting groove 8 of the movable seat 6. Each guide rod 9 is fixedly fitted with a limiting sleeve 9a at one end near the steel plate 4 to be ground. Each guide rod 9 in the mounting groove 8 is movably connected to a clamping block 10. The clamping block 10 has a vertical through-hole corresponding to each guide rod 9. There is a guide groove 11, and the guide rod 9 is set to pass through the corresponding guide groove 11. A spring 12 is sleeved on the outer periphery of each guide rod 9. The two ends of the spring 12 elastically abut against the inner wall of the mounting groove 8 of the clamping block 10 and the moving seat 6, respectively. The other side of the clamping block 10 is in contact with the end face of the limiting sleeve 9a. A vertically arranged clamping seat plate 13 is movably connected to the dovetail-shaped guide rail body 6a of the moving seat 6. A dovetail-shaped guide main groove 14 matching the dovetail-shaped guide rail body 6a is opened on the rear side of the clamping seat plate 13. The clamping block 10 is fixedly connected to the clamping seat plate 13. The flat grinding motor 7 is vertically installed on the corresponding clamping seat plate 13. The clamping seat 13 is movably connected to the movable seat 6 via the dovetail guide rail 6a. The clamping seat 13 is also movably connected to the guide rod 9 via the clamping block 10. The spring 12 presses the clamping block 10 into contact with the limiting sleeve 9a. The spring 12 presses the clamping seat 13, so that the flat grinding disc 7a of the flat grinding motor 7 is in close contact with the steel plate 4 for grinding. The flat grinding disc 7a elastically floats and grinds the steel plate 4, avoiding rigid contact and playing a protective role.

[0058] The bevel grinding assembly includes two outer mounting plates 15, each fixed to the inner side of one of the two vertical beams 3a of the portal frame 3. The two outer mounting plates 15 are symmetrically arranged. Two parallel inner fixing rods 16 are horizontally arranged between the two outer mounting plates 15. Corresponding to the two inner fixing rods 16, two parallel outer moving rods 17 are horizontally arranged. A vertical distance is left between the outer moving rods 17 and the outer mounting plates 15. The two outer moving rods 17 correspond to the two inner fixing rods 16 and are of equal length. Each inner fixing rod 16 is hinged with two symmetrically distributed main swing connecting rods 18. The other ends of the two main swing connecting rods 18 extend outward from the outer mounting plate 15 and are hinged to the left and right ends of the corresponding outer moving rods 17. Two symmetrically distributed longitudinal driven connecting rods 19 are arranged between the two outer moving rods 17. The front and rear ends of each driven connecting rod 19 are hinged to the two outer moving rods 17, close to the area to be ground. Two symmetrically distributed, forward-extending driven connecting rods 20 are hinged to the front outer moving rod 17 of steel plate 4. The ends of driven connecting rods 20 are hinged to forward-extending driven connecting rods 3 and 22 via transverse pin 1 21. A vertical distance is maintained between driven connecting rods 1 19, 20, and 22 and the outer mounting plate 15. A secondary swing connecting rod 23 extending inward is also hinged to pin 1 21. The end of driven connecting rod 3 22 is also hinged to a transverse pin 24. The inwardly extending auxiliary swing links 23 are respectively hinged at their inward ends to the corresponding outer mounting plates 15 via a transverse mounting pin 25. The main swing links 18 and the auxiliary swing links 23 are parallel and of equal length. The main swing links 18 and auxiliary swing links 23 in the left and right rows are respectively set to correspond to the two outer mounting plates 15. A flipping mechanism is provided between the links on the left and right sides. A driving mechanism is provided to correspond to the inner fixed rod 16 and the outer moving rod 17. Driven link 19, driven link 20, and driven link 32, together with the two corresponding swing links below and the outer mounting plate 15, form three sets of parallelogram linkage mechanisms. A drive mechanism is installed on the diagonal of the first set of parallelogram linkage mechanisms. The drive mechanism drives the rear main swing link 18 to swing around the inner fixed rod 16, thereby driving each driven link to move forward and driving the flipping mechanism to move back and forth. During the process of each main swing link 18 and each auxiliary swing link 23 driving each driven link to move, driven link 19, driven link 20, and driven link 32 are kept in a horizontal state.

[0059] The drive mechanism includes two mounting seats 26, which are respectively mounted on an outer moving rod 17 and an inner fixed rod 16 that are staggered in vertical height. An inclined screw 27 is rotatably mounted on the rear mounting seat 26. One end of the screw 27 passes through the rear mounting seat 26 and is provided with a drive handwheel 27a. The other end of the screw 27 passes through the front mounting seat 26 and is threadedly connected to it. A threaded hole 28 is provided in the middle of the front mounting seat 26 to allow the screw 27 to pass through. The outer moving rod 17 and the inner fixed rod 16, which are mounted on the mounting seats 26, are each composed of two rod sections 29. The two rod sections 29 are symmetrically distributed on the left and right sides of the corresponding mounting seats 26. The end of the rod section 29 closest to the corresponding mounting seat 26 is rotatably connected to it. A bearing groove is provided on the left and right sides of the threaded hole 28 on the corresponding mounting seat 26. A support bearing 30 is provided in the bearing groove. The support bearing 30 is correspondingly arranged with the inward end of the corresponding rod section 29. The screw 27 can be rotated by driving the handwheel 27a. Alternatively, the handwheel can be replaced with a servo motor to improve the level of automation. The mounting base 26 at the front moves along the axis of the screw 27 to adjust the diagonal distance of the parallelogram linkage mechanism, thereby driving each main swing link 18 to swing, so that each linkage mechanism gets power. Each auxiliary swing link 23 rotates around the mounting pin 25. The driven link 1 19, driven link 20 and driven link 3 22 maintain a horizontal state and move forward. When the screw 27 rotates, the branch rod 29 also rotates relative to the mounting base 26.

[0060] The flipping mechanism includes two symmetrical inner mounting plates 31 arranged longitudinally. A rear connecting plate 32 is fixed between the rear parts of the two inner mounting plates 31. Two transverse front connecting rods 33 are fixed between the front parts of the two inner mounting plates 31. The left and right ends of the front connecting rods 33 pass through the two inner mounting plates 31 respectively. The left and right protruding ends of the front connecting rods 33 are symmetrically arranged. The front auxiliary swing link 23 has a drive arm 23a inclined to its axis at one end facing outward. The drive arm 23a is hinged to the end of the drive arm 23a. The driven link 22 has a drive arm 22a inclined to its axis at the front end. The drive link 34 and drive arm 22a on the left and right sides are symmetrically distributed on the outside of the two inner mounting plates 31. The drive link 34 and drive arm 22a are respectively hinged to the corresponding protruding ends of the two front connecting rods 33. When the driven link 3 22 moves forward and the front auxiliary swing link 23 swings forward, the drive links 34 on the left and right sides and the drive arm 2 22a drive the two inner mounting plates 31 to rotate. The front connecting rod 33, the rear connecting plate 32 and the two inner mounting plates 31 form a whole. The inclined surface grinding motor 42 is installed on the rear connecting plate 32 to realize the rotation movement. The angle position of the inclined surface grinding disc 43 is adjusted by rotating to adapt to the position of the upper grinding inclined surface 4c and the lower grinding inclined surface 4d.

[0061] An mounting base plate 35 is provided on the inner side of the rear connecting plate 32. A fixed base plate 36 is mounted on the mounting base plate 35. An adjustable seat plate 37 that can move back and forth is movably connected to the fixed base plate 36. A dovetail guide groove 38 matching the fixed base plate 36 is provided on the adjustable seat plate 37. A screw groove 39 for mounting a screw drive mechanism 40 is provided on the fixed base plate 36. The screw nut 40a of the screw drive mechanism 40 is connected to the adjustable seat plate 37. A movable seat 41 is mounted on the adjustable seat plate 37. A bevel grinding motor 42 is mounted on the movable seat 41. The output shaft of the bevel grinding motor 42 is parallel to the length direction of the movable seat 41. A bevel grinding disc 43 is mounted on the output shaft of the bevel grinding motor 42. An elastic clamping mechanism is also provided between the bevel grinding motor 42 and the movable seat 41. The bevel grinding discs 43 of the upper and lower bevel grinding motors 42 are respectively set to the upper grinding bevel 4c and the lower grinding bevel 4d. The lead screw nut 40a of the lead screw drive mechanism 40 drives the adjustment seat plate 37 to move back and forth along the fixed base plate 36, thereby adjusting the front and rear position of the inclined grinding disc 43. The second movable seat 41 is installed on the adjustment seat plate 37. The elastic pressing mechanism between the inclined grinding motor 42 and the second movable seat 41 is the same as the elastic pressing mechanism between the flat grinding motor 7 and the first movable seat 6. The inclined grinding motor 42 is also installed on a pressing seat plate 13. The elasticity of the spring 12 allows the inclined grinding disc 43 on the inclined grinding motor 42 to be pressed and ground.

[0062] Pressure sensing components are provided on the outer sides of the two vertical beams 3a of the portal frame 3. Each pressure sensing component includes a pressure sensor body 44 fixed to the corresponding beam 3a. A push rod 45 is provided at the pressure input end of the pressure sensor body 44. The end of the push rod 45 extends forward longitudinally and abuts against the edge of the side bevel of the steel plate 4 to be ground. The contact pressure during the grinding process is monitored in real time by the pressure sensing components. When an abnormal obstacle is encountered or the pressure exceeds a preset threshold, an emergency stop or avoidance mechanism is triggered.

[0063] Each of the push rods 45 is rotatably connected to a roller 46 at its end. The roller 46 is attached to the bevel edge of the steel plate 4 to be ground, forming a rolling contact. The rolling friction reduces frictional resistance and improves the smoothness of relative movement between the steel plate 4 and the push rod 45, thereby fully applying the horizontal displacement of the steel plate 4 to the push rod 45 and improving the accuracy of pressure detection by the pressure sensing component.

[0064] Two sets of steel plate 4 thickness detection components are symmetrically arranged on the portal frame 3. Each set of steel plate 4 thickness detection components includes two cylinders 47 respectively installed on the outer sides of the two vertical beams 3a. The output ends of the two corresponding cylinders 47 are arranged facing each other and are each connected to a lifting plate 48. The lifting plate 48 extends forward and has a vertical detection rod 49 at its end. The two corresponding detection rods 49 point to the upper and lower surfaces of the steel plate 4 to be ground, respectively. The two detection rods 49 press against the upper and lower surfaces of the steel plate 4, respectively. When the ends of the two detection rods 49 move synchronously and align together, the detected thickness is zero. The greater the distance between the ends of the two detection rods 49, the greater the thickness of the steel plate 4. Based on this thickness measurement principle and the stroke of the cylinder 47 output end, the thickness of the steel plate 4 can be calculated.

[0065] The lifting plate 48 has a rectangular slide groove 50 at its front. A rotatable adjusting screw 51 is longitudinally installed in the slide groove 50. The upper end of the detection rod 49 is threaded to the adjusting screw 51 through a threaded hole 28. The adjusting screw 51 passes through the detection rod 49, which has a rectangular outer perimeter. The left and right sides of the detection rod 49 are respectively in contact with the inner walls of the left and right sides of the slide groove 50. The end of the detection rod 49 closest to the steel plate 4 to be ground abuts against its surface. When the adjusting screw 51 rotates, the detection rod 49 moves back and forth to adjust its position. A transmission groove is provided on the lifting plate 48 behind the slide groove 50. The rear end of the adjusting screw 51 is the driving end and extends into the transmission groove. A bevel gear pair is installed in the transmission groove. It is rotated by a vertical rotating shaft above the lifting plate 48. The rotation of the adjusting screw 51 adjusts the back and forth position of the detection rod 49. The rotating shaft is rotatably connected to the housing above the lifting plate 48. The two bevel gears of the bevel gear pair are respectively installed at the rear end of the adjusting screw 51 and the lower end of the rotating shaft.

[0066] Each of the detection rods 49 has a groove at one end near the steel plate 4 to be ground, and a micro switch 52 is installed in the groove. The micro switch 52 acts as a limit switch to check whether the detection rod 49 has moved into position and is in contact with the steel plate 4.

[0067] The two corresponding lifting plates 48 on the left and right are each fixed to an air pipe 53. The air pipe 53 is L-shaped, with its transverse section closed at the end and its longitudinal section serving as the suction end. Several branch pipes 54, spaced laterally along the transverse section of the air pipe 53, are connected to the transverse section. The ends of the branch pipes 54 correspond to the bevel grinding positions of the steel plate 4 to be ground. The dust generated during the grinding process of the steel plate 4 is sucked from the upper and lower sides through the branch pipes 54 on the upper and lower air pipes 53, respectively.

[0068] Multiple exhaust ports 55 are provided on the transverse section of the trachea 53. One end of the branch pipe 54 is provided with a hollow adjusting ring 54a. The hollow adjusting ring 54a has an air chamber 56 inside, which is connected to the inside of the branch pipe 54. The adjusting ring 54a is rotatably fitted on the trachea 53. An air intake port 57 is provided on the inner circumferential side wall of the adjusting ring 54a, which is connected to the air chamber 56. The air intake port 57 of each adjusting ring 54a is respectively provided with corresponding exhaust ports 55. The other end of the branch pipe 54 is provided with an extension pipe 58, which is fitted on the branch pipe 54. When the adjusting ring 54a is rotated and the exhaust port 55 is connected to the suction port 57, air is drawn out through the suction end of the air pipe 53. The dust is discharged outward in sequence through the branch pipe 54, the air chamber 56, the suction port 57, the exhaust port 55, and the air pipe 53, thus removing the grinding dust. The extension pipe 58 extends the effective dust extraction length. When the adjusting ring 54a is rotated and the exhaust port 55 and the suction port 57 are staggered and not connected, the dust removal stops.

[0069] During operation, the steel plate 4 to be ground is fixed in place. The automatic trolley 1 drives the planar grinding mechanism and the inclined grinding mechanism to move along the length of the bevel edge of the steel plate 4 to be ground. The bevel edge of the steel plate 4 to be ground is straight or arc-shaped, so that the planar grinding discs 7a of the two sets of planar grinding components move and grind the upper grinding plane 4a and the lower grinding plane 4b of the bevel of the steel plate 4, respectively. The inclined grinding discs 43 of the two sets of inclined grinding components face the steel plate 4. The upper bevel 4c and lower bevel 4d are ground by moving the grinding device. At the same time, pressure sensing components are installed on both the left and right sides of the portal frame 3. The pressure input end of the pressure sensing component, the push rod 45, is pressed against the edge of the bevel of the steel plate 4. The contact pressure during the grinding process is monitored in real time by the pressure sensing component. When an abnormal obstacle is encountered or the pressure exceeds the preset threshold, an emergency stop or avoidance mechanism is immediately triggered to prevent the grinding device from rigidly colliding with the steel plate 4. This realizes the configuration of safety anti-collision devices for the flat grinding component and the bevel grinding component. Meanwhile, a steel plate 4 thickness detection component is installed on the portal frame 3. The thickness measurement method is as follows: the automatic walking trolley 1 moves, and the steel plate 4 moves relative to the automatic walking trolley 1. When one edge of the steel plate 4 enters between a pair of corresponding upper and lower lifting plates 48, the cylinder 47 drives the lifting plate 48 to move. The upper lifting plate 48 moves down, and the lower lifting plate 48 moves up. The upper and lower detection rods 49 respectively press against the upper and lower surfaces of the steel plate 4. When the ends of the upper and lower detection rods 49 move synchronously and dock together, the detected thickness is zero. At this time, it is the maximum stroke of the cylinder 47 output end. The greater the distance between the ends of the two detection rods 49, the greater the thickness of the steel plate 4. Based on this thickness measurement principle, combined with the stroke of the cylinder 47 output end, the thickness of the steel plate 4 can be calculated. In addition, an air pipe 53 for sucking up the dust generated during the grinding process is installed on the front side of the lifting plate 48, which is cleaner, more environmentally friendly and safer.

[0070] This invention uses an automatic ground-walking trolley 1 as a mobile carrier. Four independently controlled grinding motors are integrated on the top of the automatic ground-walking trolley 1, namely two flat grinding motors 7 and two inclined grinding motors 42, which correspond to grinding the upper grinding surface, lower grinding surface, upper grinding inclined surface 4c and lower grinding inclined surface 4d of the bevel of the steel plate 4, respectively, so as to achieve synchronous and precise grinding of the four surfaces of the bevel. The effective grinding surface of the grinding disc 7a of the upper flat grinding motor 7 is arranged downwards, and it is responsible for grinding the upper surface of the bevel of the steel plate 4. The effective grinding surface of the grinding disc 7a of the lower flat grinding motor 7 is arranged upwards, and it is responsible for grinding the lower surface of the bevel of the steel plate 4. The two sets of flat grinding motors 7 are arranged vertically opposite each other to form a "clamping" grinding structure, which ensures that the upper and lower surfaces of the steel plate 4 are subjected to balanced force at the same time, and avoids micro-deformation of the steel plate 4 caused by unilateral stress. The inclined grinding disc 43 of the upper inclined grinding motor 42 is arranged at a certain angle and is responsible for grinding the upper inclined surface of the bevel. The inclined grinding disc 43 of the lower inclined grinding motor 42 has an angle complementary to that of the upper inclined grinding motor 42 and is responsible for grinding the lower inclined surface of the bevel. Through the coordinated design of the automatic walking trolley 1 and four sets of grinding motors, the automatic and all-round grinding of the four sides of the steel plate bevel 4 is realized, replacing the traditional manual and semi-automatic operation, greatly improving the grinding efficiency and meeting the progress requirements of large-scale production. Both the automated guided vehicle 1 and the portal frame 3 are equipped with laser rangefinders 59 on their upright beams 3a. An intelligent control system 60 is mounted on the platform of the automated guided vehicle 1. The intelligent control system 60 works in conjunction with the laser rangefinders 59 to scan the steel plate 4 in real time. Specifically, the laser rangefinders 59 continuously scan the surface of the steel plate 4, acquiring distance data in real time using either time-of-flight or phase difference methods. This data is then combined with encoder position information to construct a three-dimensional point cloud model of the steel plate 4. An edge detection algorithm is used to accurately identify the steel plate 4's external dimensions, bevel position, and bevel angle. The intelligent control system 60 then compares the measured distance with... The preset optimal grinding distance is compared, and a feedforward and feedback composite control strategy is adopted. On the one hand, the grinding angle is adjusted to be parallel to the bevel surface based on the identified bevel angle. On the other hand, the distance deviation is calculated in real time through the PID algorithm and the control command is output to drive the automatic walking trolley 1 to adjust the direction of travel in the horizontal plane and adjust the height of the grinding head through the lifting platform 22. This forms a closed-loop control of laser ranging, deviation calculation, attitude adjustment and real-time grinding, ensuring that the optimal distance and correct relative attitude with the bevel of the steel plate 4 are always maintained during the grinding process, so as to realize high-precision automated grinding operation.

[0071] The flat grinding assembly and the bevel grinding assembly are equipped with anti-collision devices. The contact pressure during the grinding process is monitored in real time by pressure sensing components. When an abnormal obstacle is encountered or the pressure exceeds the preset threshold, an emergency stop or avoidance mechanism is immediately triggered to prevent the grinding device from having a rigid collision with the steel plate 4.

[0072] The screw 27 of the bevel grinding assembly can be externally connected to an adjustable motor and integrated into a control system to achieve adaptive adjustment of the angle of the bevel grinding motor 42. For example, the tilt angle of the two sets of bevel grinding motors 42 can be automatically adjusted within the range of 15°-60°. The control system matches the actual bevel angle measured by laser in real time, ensuring that the grinding disc and the bevel always maintain the optimal contact angle. At the same time, the end shell of the bevel grinding motor 42 is slidably connected to the moving base 41 via spring 12, providing a floating grinding effect. This allows it to adapt to local unevenness of the bevel, preventing over-cutting or under-grinding. The spring 12 also effectively counteracts vibrations generated during grinding, ensuring the stability of the grinding motor and preventing ripples or scratches on the bevel surface. The flat grinding assembly also has a floating grinding effect.

[0073] The steel plate 4 thickness detection component is an auxiliary to the laser rangefinder 59 in measuring the thickness of the steel plate 4. It provides a dual-layer thickness measurement method. The data detected by the steel plate 4 thickness detection component is compared with the data detected by the laser rangefinder 59. If the difference is within the preset range, it can pass the grinding process. It provides multiple thickness measurement channels, improves the accuracy of steel plate 4 thickness measurement, and helps to accurately adjust the angle of the bevel grinding motor 42, so that the bevel grinding disc 43 can accurately adhere to the bevel surface for effective grinding. At the same time, the intelligent control system 60 controls the linear drive mechanism 61 to drive the moving seat 6 to move up and down, thereby adjusting the up and down movement of the flat grinding motor 7 and adjusting the distance between the upper and lower flat grinding discs 7a to achieve the grinding operation that adapts to the thickness of the steel plate 4.

[0074] Considering the impact of the surface flatness of steel plate 4 and foreign objects on the accuracy of the thickness detection results, a horizontally movable detection rod 49 was designed. Specifically, during normal thickness detection of steel plate 4, the output stroke of the upper and lower cylinders 47 tends to be the same. When there are foreign objects on the surface of steel plate 4, the end of the detection rod 49 presses against the surface of the foreign object, and the output stroke of the two cylinders 47 fails to reach the same value. At this time, the stroke of the cylinders 47 can be fed back to the intelligent control system 60, which then outputs a command to reset the upper and lower cylinders 47, and then outputs control... The command to move the detection rod 49 horizontally is specifically provided by adjusting the lead screw 51, which can be connected to a servo motor. The servo motor is controlled by the intelligent control system 60. The servo motor drives the adjusting lead screw 51 to rotate, and the adjusting lead screw 51 pushes or pulls the detection rod 49 to move horizontally within the slide groove 50. After the end of the detection rod 49 moves horizontally for a certain distance, the end of the detection rod 49 is no longer opposite the foreign object. Then, the cylinder 47 is driven, and the end of the detection rod 49 presses against the surface of the steel plate 4 to detect the thickness of the steel plate 4. If the output stroke of the two cylinders 47 fails to reach the same value, the above action can be repeated.

[0075] Each of the detection rods 49 has a groove at its end, and a micro switch 52 is installed in the groove. The micro switch 52, together with the intelligent control system 60, forms a shutdown component and is used to detect whether there is a steel plate 4 in the grinding device. When the micro switch 52 detects that there is no steel plate 4 in the grinding device, the intelligent control system 60 automatically controls the grinding equipment to stop. On the one hand, this prevents the grinding equipment from running idle and causing wear and tear, thus achieving safety protection; on the other hand, it avoids ineffective energy consumption and reduces operating costs.

[0076] Beveling generates dust particles, which are harmful not only to the human body but also to the grinding equipment. Dust particles penetrate into the grinding equipment and adhere to the surfaces of various components, accumulating into sludge over time. This affects the stable operation and service life of the grinding equipment. To address this, a dust extraction structure is designed. Specifically, an air pipe 53 is installed on the front side of the lifting plate 48. The air pipe 53 is connected to a negative pressure device, and multiple branch pipes 54 are connected to the air pipe 53. The branch pipes 54 can adopt a universal bamboo joint structure, which allows for flexible adjustment of the end position of the branch pipes 54. This enables the branch pipes 54 to effectively absorb the dust generated during grinding and extract the dust away from the grinding site.

[0077] Multiple branch pipes 54 are provided for omnidirectional extraction of dust particles, improving the purification effect. The branch pipes 54 are connected to the air pipes 53 via adjusting rings 54a, and the adjusting rings 54a are rotatably connected to the air pipes 53. Considering factors such as the bevel grinding angle and range of the steel plate 4, some branch pipes 54 may be in an ineffective adsorption state, thus requiring them to be closed. This is achieved by rotating the adjusting rings 54a. Specifically, rotating the adjusting rings 54a connects the suction port 57 on the adjusting rings 54a to the exhaust port 55. When the air intake port 57 is blocked by the surface of the air pipe 53, the air intake port 57 on the adjusting ring 54a is rotated in the opposite direction to make the air intake port 57 on the adjusting ring 54a opposite to the exhaust port 55. At this time, the air intake port 57 and the exhaust port 55 are connected. The selected control branch pipe 54 is connected to the air pipe 53, which has high flexibility and simple operation. At the same time, the negative pressure air extraction volume can be controlled by adjusting the overlap between the air intake port 57 and the exhaust port 55, thus controlling the air extraction effect of each branch pipe 54, which is suitable for various steel plate bevel grinding conditions.

[0078] This invention is not limited to the above embodiments. Based on the technical solutions disclosed in this invention, those skilled in the art can make some substitutions and modifications to some of the technical features without creative effort, and all such substitutions and modifications are within the protection scope of this invention.

Claims

1. A high-efficiency automatic grinding device for beveling steel plates, characterized in that, The system includes an automated walking trolley that can move on the ground. A lifting platform is installed on the trolley, and a portal frame is vertically mounted on the lifting platform. The portal frame includes two vertical beams, one on each side, and a horizontal connecting beam between the upper ends of the two beams. A flat grinding mechanism is installed on the portal frame, comprising two sets of vertically corresponding flat grinding components. A bevel grinding mechanism is installed between the two vertical beams of the portal frame, comprising two sets of vertically corresponding bevel grinding components. Both the flat grinding mechanism and the bevel grinding mechanism are configured to correspond to the steel plate to be ground. The side of the steel plate to be ground has an upper grinding plane, a lower grinding plane, an upper bevel, and a lower bevel. The two sets of flat grinding components correspond to the upper and lower grinding planes, respectively, and the two sets of bevel grinding components correspond to the upper and lower bevels, respectively.

2. The high-efficiency automatic grinding device for steel plate beveling according to claim 1, characterized in that, The steel plate to be ground is set horizontally. The upper grinding plane and the lower grinding plane are respectively set on the upper surface and the lower surface of the steel plate to be ground. On the side of the steel plate to be ground, the upper grinding slope is set near the edge of the upper grinding plane, and the lower grinding slope is set near the edge of the lower grinding plane. The steel plate to be ground is located between the upper and lower sets of plane grinding components.

3. A high-efficiency automatic grinding device for steel plate beveling according to claim 1 or 2, characterized in that, Two vertically corresponding fixed supports are vertically arranged on any of the upright beams of the portal frame. The two sets of the plane grinding components are respectively arranged on the two fixed supports. The plane grinding component includes a movable seat that is vertically connected to the corresponding fixed support. A plane grinding motor is vertically arranged on the movable seat. The output end of the plane grinding motor faces the steel plate to be ground and is provided with a plane grinding disc. An elastic pressing mechanism is provided between the movable seat and the plane grinding motor. The plane grinding discs of the upper and lower plane grinding motors are respectively arranged to correspond to the upper grinding plane and the lower grinding plane of the steel plate to be ground.

4. The high-efficiency automatic grinding device for steel plate beveling according to claim 3, characterized in that, The elastic clamping mechanism includes a dovetail-shaped guide rail body arranged along the length of the movable seat. The dovetail-shaped guide rail body is located on the outer side of the movable seat. The movable seat has a vertically arranged mounting groove that extends through the movable seat and the dovetail-shaped guide rail body along the thickness direction. At least two parallel guide rods are arranged along the length of the mounting groove in the movable seat. Each guide rod has a limiting sleeve fixedly fitted at the end near the steel plate to be ground. Each guide rod in the mounting groove is movably connected to a clamping block. The clamping block has a corresponding vertical clamping block for each guide rod. A guide groove is provided through the entire structure, and guide rods are fitted through the corresponding guide grooves. Each guide rod is fitted with a spring on its outer circumference. The two ends of the springs elastically abut against the inner walls of the mounting grooves of the clamping block and the first movable seat. The other side of the clamping block is in contact with the end face of the limiting sleeve. A vertically arranged clamping seat plate is movably connected to the dovetail-shaped guide rail of the first movable seat. A dovetail-shaped guide main groove matching the dovetail-shaped guide rail is provided on the rear side of the clamping seat plate. The clamping block is fixedly connected to the clamping seat plate. The flat grinding motor is vertically mounted on the corresponding clamping seat plate.

5. The high-efficiency automatic grinding device for steel plate beveling according to claim 4, characterized in that, The bevel grinding assembly includes two outer mounting plates fixed to the inner sides of two vertical beams of a portal frame. The two outer mounting plates are symmetrically arranged. Two parallel inner fixed rods are horizontally arranged between the two outer mounting plates. Corresponding to the two inner fixed rods, two parallel outer moving rods are horizontally arranged. A vertical distance is left between the outer moving rods and the outer mounting plates. The two outer moving rods correspond to the two inner fixed rods and are of equal length. Each inner fixed rod is hinged with two symmetrically distributed main swing connecting rods. The other ends of the two main swing connecting rods extend outward from the outer mounting plate and are hinged to the left and right ends of the corresponding outer moving rods. Two symmetrically distributed longitudinal driven connecting rods are arranged between the two outer moving rods. The front and rear ends of each driven connecting rod are hinged to the two outer moving rods, respectively. Two symmetrically distributed and forward-extending driven connecting rods are hinged to the front outer moving rod of the steel plate to be ground. The ends of the driven connecting rods are hinged to a forward-extending driven connecting rod 3 via a transverse pin. There is a vertical gap between the driven connecting rods 1, 2, and 3 and the outer mounting plate. An inward-extending secondary swing connecting rod is also hinged to the pin. The end of the driven connecting rod 3 is also hinged to an inward-extending secondary swing connecting rod via a transverse pin. The inward end of each secondary swing connecting rod is hinged to the corresponding outer mounting plate via a transverse mounting pin. Each main swing connecting rod and each secondary swing connecting rod is parallel and of equal length. The main swing connecting rods and secondary swing connecting rods in the left and right rows are respectively set to correspond to the two outer mounting plates. A flipping mechanism is provided between the connecting rods on the left and right sides. A driving mechanism is provided corresponding to the inner fixed rod and the outer moving rod.

6. The high-efficiency automatic grinding device for steel plate beveling according to claim 5, characterized in that, The drive mechanism includes two mounting seats, which are respectively set on an outer moving rod and an inner fixed rod that are staggered in vertical height. An inclined screw is rotatably mounted on the rear mounting seat. One end of the screw passes through the rear mounting seat and is equipped with a drive handwheel. The other end of the screw passes through the front mounting seat and is threadedly connected to it. A threaded hole is opened in the middle of the front mounting seat to allow the screw to pass through. The outer moving rod and the inner fixed rod, on which the mounting seats are mounted, are each composed of two rod sections. The two rod sections are symmetrically distributed on the left and right sides of the corresponding mounting seats. The end of the rod section closest to the corresponding mounting seat is rotatably connected to it. A bearing groove is opened on the left and right sides of the threaded hole on the corresponding mounting seat. A support bearing is installed in the bearing groove. The support bearing is correspondingly set with the inward end of the corresponding rod section.

7. The high-efficiency automatic grinding device for steel plate beveling according to claim 5, characterized in that, The flipping mechanism includes two symmetrical inner mounting plates arranged longitudinally. A rear connecting plate is fixed between the rear parts of the two inner mounting plates, and two transverse front connecting rods are fixed between the front parts of the two inner mounting plates. The left and right ends of the front connecting rods pass through the two inner mounting plates respectively, and the left and right protruding ends of the front connecting rods are symmetrically arranged. The front auxiliary swing link has a drive arm one that is inclined to its axis at one end. The drive arm one is hinged to a drive link. The driven link three has a drive arm two that is inclined to its axis at the front end. The drive links and drive arms two on the left and right sides are symmetrically distributed on the outside of the two inner mounting plates. The drive links and drive arms two are respectively hinged to the corresponding protruding ends of the two front connecting rods.

8. The high-efficiency automatic grinding device for steel plate beveling according to claim 7, characterized in that, An installation base plate is provided on the inner side of the rear connecting plate. A fixed base plate is installed on the installation base plate. An adjustable seat plate that can move back and forth is movably connected to the fixed base plate. The adjustable seat plate has a dovetail guide groove that matches the fixed base plate. The fixed base plate has a screw groove for installing a screw drive mechanism. The screw nut of the screw drive mechanism is connected to the adjustable seat plate. A movable seat two is installed on the adjustable seat plate. A bevel grinding motor is installed on the movable seat two. The output shaft of the bevel grinding motor is parallel to the length direction of the movable seat two. A bevel grinding disc is installed on the output shaft of the bevel grinding motor. An elastic clamping mechanism is also provided between the bevel grinding motor and the movable seat two. The bevel grinding discs of the upper and lower bevel grinding motors are respectively set to the upper and lower bevel grinding surfaces.

9. A high-efficiency automatic grinding device for steel plate beveling according to claim 1 or 2, characterized in that, Pressure sensing components are provided on the outer sides of the two vertical beams of the portal frame. Each pressure sensing component includes a pressure sensor body fixed on the corresponding beam. The pressure input end of the pressure sensor body is provided with a push rod. The end of the push rod extends forward longitudinally and abuts against the edge of the side bevel of the steel plate to be ground.

10. A high-efficiency automatic grinding device for steel plate beveling according to claim 9, characterized in that, Each of the top rods is rotatably connected to a roller at its end, and the roller is attached to the bevel edge of the steel plate to be ground to form rolling contact.

11. A high-efficiency automatic grinding device for steel plate beveling according to claim 1 or 2, characterized in that, The portal frame is symmetrically equipped with two sets of steel plate thickness detection components that are corresponding to each other. Each set of steel plate thickness detection components includes two cylinders that are respectively installed on the outside of two vertical beams. The output ends of the two cylinders that are corresponding to each other are set facing each other and are connected to lifting plates. The lifting plates extend forward and have vertical detection rods at their ends. The two detection rods that are corresponding to each other point to the upper and lower surfaces of the steel plate to be polished.

12. The high-efficiency automatic grinding device for steel plate beveling according to claim 11, characterized in that, The front of the lifting plate is provided with a rectangular slide groove, and a rotatable adjusting screw is installed longitudinally in the slide groove. The upper end of the detection rod is threadedly connected to the adjusting screw through a threaded hole. The adjusting screw passes through the detection rod. The outer periphery of the detection rod is rectangular. The left and right sides of the detection rod are respectively in contact with the inner walls of the left and right sides of the slide groove. The end of the detection rod close to the steel plate to be ground abuts against its surface.

13. The high-efficiency automatic grinding device for steel plate beveling according to claim 12, characterized in that, Each of the aforementioned detection rods has a groove at one end near the steel plate to be ground, and a micro switch is installed in the groove.

14. The high-efficiency automatic grinding device for steel plate beveling according to claim 11, characterized in that, The two corresponding lifting plates on the left and right are fixed to an air pipe. The air pipe is L-shaped, with the end of the transverse section closed and the end of the longitudinal section serving as the suction end. Several branch pipes are connected to the transverse section of the air pipe, which are distributed at intervals along the transverse direction. The ends of the branch pipes correspond to the bevel grinding position of the steel plate to be ground.

15. A high-efficiency automatic grinding device for steel plate beveling according to claim 14, characterized in that, Multiple exhaust ports are provided on the transverse section of the trachea. One end of the branch pipe is provided with a hollow adjusting ring. The hollow adjusting ring has an air chamber inside, which is connected to the inside of the branch pipe. The adjusting ring is rotatably fitted onto the trachea. An air intake port is provided on the inner peripheral side wall of the adjusting ring, which is connected to the air chamber. The air intake port of each adjusting ring is respectively set to correspond to each exhaust port. The other end of the branch pipe is provided with an extension pipe, which is fitted onto the branch pipe.

Images