A steel slab polishing machine

Abstract

The application discloses a steel slab polishing machine and particularly relates to the technical field of polishing machines, which comprises a workbench, a moving assembly arranged on the upper side of the workbench, a polishing switching assembly arranged on the upper end of the workbench, an adjusting assembly arranged on one side of the polishing switching assembly, a positioning assembly arranged on the upper end of the workbench, the positioning assembly comprising four annular array positioning blocks, and a position-avoiding assembly arranged on the outer sides of the four positioning blocks. The steel slab polishing machine can automatically switch the polishing of the side surface to the chamfer of the steel slab without stopping work, can assist in positioning and fixing the steel slab through the positioning assembly and the fixing assembly, eliminate the initial deviation, and simultaneously utilize the cooperation of the positioning assembly and the position-avoiding assembly to enable the polishing device one and the polishing device two to completely cover the clamping area of the edge center, eliminate the polishing blind area of the edge center, greatly improve the overall quality and consistency of the polishing of the steel slab, and improve the overall processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of polishing machine technology, and in particular to a steel slab polishing machine. Background Technology

[0002] In key industrial sectors such as high-end equipment manufacturing, precision molds, special alloys, and aerospace, the basic raw material is often a thick steel slab, square or rectangular with rounded corners, formed through continuous casting and cutting processes. Fine polishing of the sides and chamfers of these slabs is a crucial quality assurance step before they enter subsequent key forming processes such as hot rolling or precision forging. Its purpose is to thoroughly remove surface micro-cracks, oxide scale, burrs, and other metallurgical defects generated during casting and cutting, preventing these initial defects from expanding under the enormous rolling pressure, thereby avoiding cracking or scrapping of the final product.

[0003] However, existing polishing methods for the edges of such steel slabs have significant shortcomings. Current mainstream methods heavily rely on manual or semi-automatic handheld polishing equipment, resulting in extremely high labor intensity and low production efficiency. The operator's experience and physical strength directly determine the polishing effect, easily leading to over-polishing or under-polishing. In particular, to hold the heavy steel slabs in place, large fixed clamping devices must be used. These clamps themselves obstruct parts of the polishing area, creating "processing dead zones," which cannot meet increasingly stringent industrial standards.

[0004] Chinese Patent Publication No. CN220348080U discloses a steel plate surface polishing machine. By setting up a fixed box, anti-splash skirt, fixed frame, cleaning mechanism and clamping mechanism, when the polishing component in the fixed box polishes the surface of the steel plate placed on the conveying mechanism, the anti-splash skirt on the bottom surface of the fixed box can block the debris generated during polishing. The blocked debris falls onto the surface of the steel plate. After the steel plate passes through the bottom surface of the fixed box, the cleaning mechanism can automatically clean the debris on the steel plate, eliminating the manual cleaning operation of debris on the surface of the steel plate and reducing labor costs. In addition, when the conveying mechanism slowly conveys the steel plate through the bottom surface of the fixed box, the clamping mechanism can apply downward pressure to the steel plate, thereby preventing the steel plate from moving during polishing and improving the stability of steel plate polishing.

[0005] However, the above-mentioned device does not achieve the effect of continuous polishing of the sides and chamfers of the steel slab without stopping the work, resulting in low processing efficiency. Summary of the Invention

[0006] The main objective of this invention is to provide a steel slab polishing machine that can effectively solve the problems in the background art.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] A steel slab polishing machine includes a worktable. A moving component is provided on the upper side of the worktable. The moving component includes a housing, a first polishing device, and two second polishing devices. A polishing switching component is provided at the upper end of the worktable. An adjustment component capable of adjusting the angle of the two second polishing devices is provided on one side of the polishing switching component. A positioning component with auxiliary positioning function for the steel slab is provided at the upper end of the worktable. The positioning component includes four positioning blocks arranged in a ring. A clearance component is provided on the outer side of the four positioning blocks. During the movement of the housing, the clearance component can temporarily move the positioning block on one side of the steel slab away to avoid collision between the first and second polishing devices and the positioning block when polishing the side of the steel slab. A fixing component is provided at the upper end of the worktable.

[0009] Preferably, the moving component includes a conveying mechanism, an mounting plate is installed on the upper end of the conveying mechanism, a guide seat is fixedly connected to the upper end of the worktable, the upper end of the mounting plate is fixedly connected to the outer shell, and a slag collection box is fixedly connected to the right side of the outer shell.

[0010] Preferably, the polishing switching assembly includes a guide groove 1 formed on the upper end of the worktable, an inclined groove formed on one side of the guide groove 1, a guide groove 2 formed at the end of the inclined groove away from the guide groove 1, a rotating baffle rotatably connected at the connection between the guide groove 1 and the inclined groove, and a spring 1 fixedly connected at the obtuse angle connection between the outer surface of the rotating baffle and the guide groove 1.

[0011] Preferably, a sliding seat 1 is slidably connected to the upper end of the outer shell, the upper end of the sliding seat 1 is fixedly connected to a polishing device 1, a sliding seat 2 is slidably connected to the upper end of the outer shell, the upper end of the sliding seat 2 has two movable grooves, the inner surface of the sliding seat 2 is rotatably connected to two polishing devices 2, a guide post 1 is fixedly connected to the left side of the sliding seat 1, the outer surface of the guide post 1 is slidably connected to guide groove 1, the inclined groove is slidably connected to guide groove 2, and the outer surface of the guide post 1 is slidably connected to the outer shell;

[0012] A rack is fixedly connected to the front side of the sliding seat 1. A gear is meshed with the outer surface of the rack 1. The lower end of the gear is rotatably connected to the bottom of the outer shell. A rack 2 is meshed with the side of the gear 1 away from the rack 1. When the sliding seat 1 moves to one side, the meshing of the rack 1, gear 1 and rack 2 will drive the sliding seat 2 to move in the opposite direction to the sliding seat 1.

[0013] Preferably, the adjustment assembly includes a rotating handle rotatably connected to the outer surface of the sliding seat two. One end of the rotating handle extending to the inner surface of the sliding seat two is fixedly connected to a gear two. The outer surface of the gear two is meshed with two gear threes. The rear sides of each of the two gear threes are fixedly connected to a rotating shaft. The two gear threes mesh with each other. The outer surfaces of each of the two rotating shafts are fixedly connected to rotating arms. The upper ends of each of the two rotating arms are fixedly connected to the polishing device two on the same side. The outer surfaces of each of the two rotating arms are rotatably connected to the movable groove on the same side.

[0014] Preferably, the positioning component includes a fixed base one fixedly connected to the middle position of the worktable, four support bases fixedly connected to the upper end of the fixed base one in a ring, each of the four support bases having a through groove in the middle position, a support plate fixedly connected to the upper end of the four support bases, a hydraulic device one installed at the lower end of the support plate, a cross connecting frame fixedly connected to the lower end of the hydraulic device one, a limit post fixedly connected inside each of the four through grooves, and the four ends of the cross connecting frame passing through the inner surface of the through groove on the same side and slidingly connected to the limit post on the same side respectively.

[0015] Preferably, each of the four ends of the cross connecting frame is rotatably connected to a rotating seat, the upper end of each of the four rotating seats is rotatably connected to an L-shaped connecting frame, the lower end of each of the four L-shaped connecting frames is fixedly connected to a limiting block, the opposite sides of each of the four support seats are fixedly connected to an adjusting seat, the upper end of each of the four adjusting seats is provided with a sliding groove, the outer surface of each of the four limiting blocks is slidably connected to the sliding groove on the same side, and the opposite sides of each of the four L-shaped connecting frames are slidably connected to a positioning block on the same side. When the hydraulic device drives the cross connecting frame to rise, the four positioning blocks open outwards simultaneously, releasing the limiting effect on the steel slab. When the hydraulic device drives the cross connecting frame to fall, the four positioning blocks move towards the center simultaneously, providing auxiliary limiting effect on the steel slab.

[0016] Preferably, the avoidance assembly includes a second guide post fixedly connected to the front side of the outer casing and a third guide post fixedly connected to the rear upper end of the outer casing.

[0017] Preferably, the positioning assembly further includes four fixing plates, each fixedly connected to the lower end of the positioning block on the same side. Each of the four fixing plates has a guide groove three on its outer surface and a guide groove four at its upper end. Two sliding grooves two are formed on the side of each of the four L-shaped connecting frames away from the adjusting seat. Springs two are fixedly connected inside the two sliding grooves two on the same side. The upper ends of the two springs two on the same side are fixedly connected to the lower end of the positioning block on the same side. The outer surface of the guide post two is slidably connected to the rear half of the guide grooves three and four, and the outer surface of the guide post three is slidably connected to the inner surface of the guide groove four.

[0018] Preferably, the fixing component includes a fixing seat two fixedly connected to the upper end of the workbench, a hydraulic device two fixedly installed on one side of the fixing seat two, and a pressing plate fixedly connected to the output end of the hydraulic device two.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This invention can automatically switch between side and chamfer polishing of steel slabs without stopping production by using moving and polishing switching components, thus improving production efficiency. It can also use positioning and fixing components to assist in positioning and fixing the steel slabs, eliminating initial deviations. Simultaneously, by cooperating with positioning and avoidance components, the positioning block automatically descends to avoid the obstruction, allowing polishing device one and polishing device two to completely cover the clamping area at the edge center, eliminating the polishing blind spot at the edge center, greatly improving the overall quality and consistency of steel slab polishing, and increasing overall processing efficiency.

[0021] This invention utilizes the switching of guide post one between guide groove one and guide groove two to achieve the separation of polishing device one from the side of the steel slab, while allowing polishing device two to contact the chamfer of the steel slab. First, the side and rounded corners of the steel slab are polished, and then the process switches to the chamfer polishing of the entire edge of the steel slab. The entire process does not require machine stoppage or manual component replacement, thus realizing automated continuous operation of "side-chamfer" polishing of the steel slab, greatly shortening the processing cycle and improving production efficiency.

[0022] This invention uses four positioning blocks to assist in positioning the steel slab, ensuring that the center point of the steel slab corresponds to the fixed base, eliminating initial positional deviations. During polishing, the coordination of the avoidance component and the positioning component pushes one side of the positioning block down to avoid it, allowing the polishing device one and polishing device two to completely polish the clamping area at the center of the four sides of the steel slab. This forms a dynamic operation of "avoidance-polishing-reset", which not only ensures the positional stability of the steel slab during processing but also eliminates the blind spot in the edge center polishing, significantly improving the overall quality and consistency of steel slab polishing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the worktable of the present invention;

[0025] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the diagram;

[0026] Figure 4 This is a schematic diagram of the structure of the moving component of the present invention;

[0027] Figure 5 This is a schematic diagram of the polishing switching component of the present invention;

[0028] Figure 6 This is a schematic diagram of the polishing switching component of the present invention from another perspective.

[0029] Figure 7 This is a schematic diagram of the structure of the adjustment component of the present invention;

[0030] Figure 8 This is a schematic diagram of the positioning component of the present invention;

[0031] Figure 9 This is a schematic diagram of the structure of the avoidance component of the present invention;

[0032] Figure 10 This is a partial structural schematic diagram of the avoidance component of the present invention.

[0033] In the diagram: 1. Workbench; 2. Moving assembly; 21. Conveying mechanism; 22. Mounting plate; 221. Guide seat; 23. Outer shell; 24. Polishing device one; 25. Polishing device two; 26. Slag collection box; 3. Polishing switching assembly; 31. Guide groove one; 311. Inclined groove; 312. Guide groove two; 313. Rotating baffle; 314. Spring one; 315. Guide column one; 33. Sliding seat one; 34. Sliding seat two; 341. Movable groove; 35. Rack one; 36. Gear one; 37. Rack two; 4. Adjustment assembly; 41. Rotating handle; 42. Gear two; 43. Gear three; 44. Rotating... 45. Shaft; 5. Rotating arm; 5. Positioning assembly; 51. Fixed seat one; 52. Support seat; 521. Through groove; 53. Support plate; 54. Hydraulic device one; 55. Cross connecting frame; 56. Limiting post; 57. Rotating seat; 58. L-shaped connecting frame; 59. Limiting block; 510. Adjusting seat; 511. Sliding groove one; 512. Positioning block; 6. Alternating component; 61. Guide post two; 62. Guide post three; 63. Fixed plate; 64. Guide groove three; 65. Guide groove four; 66. Sliding groove two; 67. Spring two; 7. Fixed assembly; 71. Fixed seat two; 72. Hydraulic device two; 73. Pressing plate. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0035] Example 1, as Figure 1As shown, a steel slab polishing machine includes a worktable 1. A moving component 2 is provided on the upper side of the worktable 1. The moving component 2 includes a housing 23, a first polishing device 24, and two second polishing devices 25. A polishing switching component 3 is provided at the upper end of the worktable 1. An adjusting component 4 is provided on one side of the polishing switching component 3 to adjust the angle of the two second polishing devices 25. A positioning component 5 with auxiliary positioning function for the steel slab is provided at the upper end of the worktable 1. The positioning component 5 includes four positioning blocks 512 in a ring array. A clearance component 6 is provided on the outer side of the four positioning blocks 512. During the movement of the housing 23, the clearance component 6 can temporarily move the positioning block 512 on one side of the steel slab away to avoid the first polishing device 24 and the second polishing device 25 from colliding with the positioning block 512 when polishing the side of the steel slab. A fixing component 7 is provided at the upper end of the worktable 1.

[0036] During the operation of this embodiment, the automatic switching from side polishing to chamfer polishing of the steel slab can be achieved without stopping production by using the moving component 2 and the polishing switching component 3, thereby improving production efficiency. Alternatively, the positioning component 5 and the fixing component 7 can be used to assist in positioning and fixing the steel slab, eliminating initial deviations. Simultaneously, by cooperating with the positioning component 5 and the avoidance component 6, the positioning block 512 can automatically descend and avoid the obstruction, so that the polishing device 1 24 and the polishing device 2 25 can completely cover the clamping area at the edge center, eliminating the polishing blind spot at the edge center, greatly improving the overall quality and consistency of steel slab polishing, and increasing the overall processing efficiency.

[0037] Example 2 is based on Example 1, and aims to achieve the effect of continuous polishing of steel slabs from the side to the chamfer.

[0038] like Figure 1 , Figure 2 , Figure 4 and Figure 5 The moving component 2 includes a conveying mechanism 21, an mounting plate 22 is mounted on the upper end of the conveying mechanism 21, a guide seat 221 is fixedly connected to the upper end of the workbench 1, the upper end of the mounting plate 22 is fixedly connected to the outer shell 23, and a slag collection box 26 is fixedly connected to the right side of the outer shell 23.

[0039] The slag collection box 26 can protect the chain below and collect the welding slag in the slag collection box 26 for unified treatment.

[0040] The aforementioned conveying mechanism 21 is a conventional technology in the prior art, with "four sprockets distributed at the four corners" as the core supporting component. The four sprockets correspond to the four corners of the steel slab processing area, and together they form a rectangular transmission frame that matches the outline of the steel slab. The rectangular chain surrounding the four sprockets serves as the power transmission and motion bearing component. When the drive motor drives one of the active sprockets to rotate, the active sprocket drives the rectangular chain to move cyclically along the rectangular trajectory formed by the four sprockets through meshing. The polishing device 1 24 and the two polishing devices 25 are mounted on the outer shell 23. With the cyclic movement of the chain, they obtain stable traveling power along the side of the steel slab, and finally achieve orderly movement along the preset rectangular path, providing precise trajectory guidance for side and chamfer polishing.

[0041] Furthermore, the chain and guide seat 221 mentioned above are in a parallel and fixed-distance fit relationship with the side of the steel slab. Their corner turning angles and contour shapes are consistent with the side of the steel slab, and the center of the steel slab coincides completely with the center of the chain track.

[0042] like Figure 2 , Figure 3 , Figure 5 and Figure 6 The polishing switching assembly 3 includes a guide groove 31 on the upper end of the worktable 1, an inclined groove 311 on one side of the guide groove 31, a guide groove 312 at the end of the inclined groove 311 away from the guide groove 31, a rotating baffle 313 rotatably connected at the connection between the guide groove 31 and the inclined groove 311, a spring 314 fixedly connected at the obtuse angle connection between the outer surface of the rotating baffle 313 and the guide groove 31, a guide post 315 fixedly connected to the left side of the sliding seat 33, the outer surface of the guide post 315 slidably connected to the guide groove 31, the inclined groove 311 and the guide groove 312, and the outer surface of the guide post 315 slidably connected to the outer shell 23.

[0043] Furthermore, the length of the rotating baffle 313 is greater than the width of the guide groove 31.

[0044] Since guide groove 1 31 and guide groove 2 312 are connected by inclined groove 311, when polishing device 1 24 completes the first circle of movement along guide groove 1 31, it is restricted by the connection structure of inclined groove 311 and cannot achieve complete rotation. This results in a short gap in the movement trajectory at the connection of guide groove 1 31. Therefore, the effective radius of the polishing head of polishing device 1 24 needs to be greater than the distance corresponding to the gap in the track, so that sliding seat 2 34 can fill the polishing blind area at the connection of guide groove 1 31 and guide groove 2 312 during the movement, ensuring that the polishing of the side of the steel slab is complete in the first circle and achieving a full-side polishing effect.

[0045] The upper end of the outer shell 23 is slidably connected to a sliding seat 33. The upper end of the sliding seat 33 is fixedly connected to a polishing device 24. The upper end of the outer shell 23 is slidably connected to a sliding seat 34. The upper end of the sliding seat 34 has two movable grooves 341. The inner surface of the sliding seat 34 is rotatably connected to two polishing devices 25.

[0046] A rack 35 is fixedly connected to the front side of the sliding seat 33. A gear 36 is meshed with the outer surface of the rack 35. The lower end of the gear 36 is rotatably connected to the bottom of the outer casing 23. A rack 37 is meshed with the side of the gear 36 away from the rack 35. When the sliding seat 33 moves to one side, the meshing of the rack 35, the gear 36 and the rack 37 will drive the sliding seat 34 to move in the opposite direction to the sliding seat 33.

[0047] Furthermore, when the polishing device 24 moves along the surface of the guide seat 221 to polish the side of the steel slab under the drive of the conveying mechanism 21, the guide column 315 moves synchronously with the outer shell 23. It first slides in the guide groove 31 until it rotates nearly one revolution. Then, blocked by the rotating baffle 313, it enters the guide groove 312 through the inclined groove 311 and continues to rotate. This causes the guide column 315 to drive the sliding seat 33 to move outward, thereby causing the rack 35, gear 36 and rack 37 to mesh, driving the sliding seat 34 to move in the opposite direction to the sliding seat 33. This achieves the effect of the polishing device 24 separating from the side of the steel slab, while the polishing device 25 contacts the side of the steel slab. Without stopping the machine or manually replacing components, it realizes the automated continuous operation of "side-chamfer" polishing of the steel slab, greatly shortening the processing cycle and improving production efficiency.

[0048] like Figure 5 and Figure 7 The adjustment assembly 4 includes a rotating handle 41 rotatably connected to the outer surface of the sliding seat 2 34. A gear 2 42 is fixedly connected to one end of the rotating handle 41 extending to the inner surface of the sliding seat 2 34. Two gears 3 43 are meshed on the outer surface of the gears 2 42. Rotating shafts 44 are fixedly connected to the rear side of each of the two gears 3 43. The two gears 3 43 mesh with each other. Rotating arms 45 are fixedly connected to the outer surface of each of the two rotating shafts 44. The upper ends of the two rotating arms 45 are fixedly connected to the polishing device 2 25 on the same side. The outer surfaces of the two rotating arms 45 are rotatably connected to the movable groove 341 on the same side.

[0049] The rotating handle 41 has a horizontally movable pin inside. There are multiple positioning holes on the shaft or mounting base corresponding to the rotating handle 41. Pushing the pin into the positioning hole can fix the handle angle. Pressing the unlock button or the lever can pull out the pin and allow the rotating handle 41 to rotate. The locking stability is strong and avoids the polishing device 25 angle deviation caused by vibration during the polishing process.

[0050] Furthermore, rotating the handle 41 causes gear 2 42 and gear 3 43 to mesh, causing the two rotating shafts 44 to move in opposite directions, thereby causing the two polishing devices 2 25 to open or close and adjust the angle.

[0051] Therefore, this solution utilizes the switching of guide post 315 between guide groove 31 and guide groove 312 to separate polishing device 24 from the side of the steel slab, while simultaneously allowing polishing device 25 to contact the chamfer of the steel slab. The side polishing of the steel slab is completed first, and then the process switches to chamfer polishing. The entire process does not require machine downtime or manual component replacement, thus achieving automated continuous operation of "side-chamfer" polishing of the steel slab, significantly shortening the processing cycle and improving production efficiency.

[0052] Example 3: Based on Examples 1 and 2, this example aims to achieve unobstructed polishing of the entire length of the steel slab edge while ensuring clamping stability.

[0053] like Figure 8 and Figure 9 The positioning component 5 includes a fixed base 51 fixedly connected to the middle position of the worktable 1. Four support bases 52 are fixedly connected to the upper end of the fixed base 51 in a ring. Each of the four support bases 52 has a through groove 521 in the middle position. A support plate 53 is fixedly connected to the upper end of the four support bases 52. A hydraulic device 54 is installed at the lower end of the support plate 53. A cross connecting frame 55 is fixedly connected to the lower end of the hydraulic device 54. Limiting posts 56 are fixedly connected inside the four through grooves 521. The four ends of the cross connecting frame 55 pass through the inner surface of the through groove 521 on the same side and are slidably connected to the limiting posts 56 on the same side.

[0054] The four ends of the cross connecting frame 55 are rotatably connected to rotating seats 57. The upper ends of the four rotating seats 57 are rotatably connected to L-shaped connecting frames 58. The lower ends of the four L-shaped connecting frames 58 are fixedly connected to limiting blocks 59. The opposite sides of the four support seats 52 are fixedly connected to adjusting seats 510. The upper ends of the four adjusting seats 510 are provided with sliding grooves 511. The outer surfaces of the four limiting blocks 59 are slidably connected to the sliding grooves 511 on the same side. The opposite sides of the four L-shaped connecting frames 58 are slidably connected to the positioning blocks 512 on the same side. When the hydraulic device 54 drives the cross connecting frame 55 to rise, the four positioning blocks 512 open outwards simultaneously, releasing the limiting effect on the steel slab. When the hydraulic device 54 drives the cross connecting frame 55 to fall, the four positioning blocks 512 move towards the center simultaneously, providing auxiliary limiting effect on the steel slab.

[0055] Furthermore, the sliding groove 511 and the limiting block 59 can limit the L-shaped connecting frame 58, so that it can only perform parallel reciprocating movement.

[0056] Then, the steel slab is placed on the upper end of the support plate 53, and the hydraulic device 54 is activated to drive the cross connecting frame 55 to descend, and the rotating seat 57 is pulled to change the angle, so that the four sets of L-shaped connecting frames 58 move towards the middle at the same time, and perform auxiliary limiting clamping on the steel slab, so that the center point of the steel slab corresponds to the center point of the fixed seat 51.

[0057] like Figure 9 and Figure 10 The clearance assembly 6 includes a second guide post 61 fixedly connected to the front side of the outer shell 23 and a third guide post 62 fixedly connected to the rear side of the upper end of the outer shell 23.

[0058] The positioning component 6 also includes four fixing plates 63, which are fixedly connected to the lower end of the positioning block 512 on the same side. The outer surface of each of the four fixing plates 63 is provided with a guide groove 64, and the upper end of each of the four guide grooves 64 is provided with a guide groove 65. The side of each of the four L-shaped connecting brackets 58 away from the adjusting seat 510 is provided with two sliding grooves 66. The interior of each of the two sliding grooves 66 on the same side is fixedly connected with a spring 67. The upper ends of the two springs 67 on the same side are fixedly connected to the lower end of the positioning block 512 on the same side. The outer surface of the guide post 61 is slidably connected to the rear half of the guide grooves 64 and 65, and the outer surface of the guide post 62 is slidably connected to the inner surface of the guide groove 65.

[0059] Furthermore, the height of guide post 2 61 is the same as the horizontal part of guide groove 3 64, and when guide post 2 61 moves to guide groove 4 65, it will drive the fixing plate 63 and positioning block 512 to descend together.

[0060] Furthermore, the positioning blocks 512 are located at the center of the four sides of the steel slab. When the outer shell 23 is about to reach the position of the positioning block 512, the guide post 2 61 will first enter the guide groove 3 64, driving the fixing plate 63 on that side to descend together with the positioning block 512. When the guide post 2 61 on one side disengages from the guide groove 4 65, the guide post 3 62 on the other side contacts the guide groove 4 65, so that the positioning block 512 is always in a state of being disengaged from the steel slab until the outer shell 23 completely leaves the area. Only then will the positioning block 512 at that position reset, so that the polishing device 1 24 and the polishing device 2 25 can completely cover the clamping area at the center of the edge without stopping. Under the premise of ensuring clamping stability, unobstructed polishing of the entire length of the edge of the steel slab is achieved.

[0061] like Figure 1 The fixing component 7 includes a fixing seat 71 fixedly connected to the upper end of the workbench 1. A hydraulic device 72 is fixedly installed on one side of the fixing seat 71. A pressing plate 73 is fixedly connected to the output end of the hydraulic device 72.

[0062] Furthermore, when the four sets of L-shaped connecting frames 58 move towards the center at the same time to assist in limiting and clamping the steel slab, the hydraulic device 2 72 can be activated to push the pressing plate 73 down to press and limit the steel plate. Even if the positioning block 512 on one side separates from the edge of the steel slab during the processing, it will not affect the stability of the steel slab.

[0063] Therefore, this solution first uses four positioning blocks 512 to assist in positioning the steel slab, so that the center point of the steel slab corresponds to the fixed seat 51, eliminating the initial positional deviation. During the polishing process, the positioning block 512 on one side is pushed down to avoid the position by the cooperation of the avoidance component 6 and the positioning component 5, so that the polishing device 24 and the polishing device 25 can completely polish the clamping area at the center of the four sides of the steel slab, forming a dynamic operation of "avoidance-polishing-reset". This not only ensures the positional stability of the steel slab during processing, but also eliminates the blind spot of the edge center polishing, greatly improving the overall quality and consistency of the steel slab polishing.

[0064] It should be noted that the specific installation methods, circuit connection methods, and control methods of the conveying mechanism 21, polishing device 1 24, polishing device 2 25, hydraulic device 1 54 and hydraulic device 2 72 used in this invention are all conventional designs, and will not be described in detail in this invention.

[0065] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A steel slab polishing machine comprising a worktable (1), characterized in that: The upper side of the workbench (1) is provided with a moving assembly (2), the moving assembly (2) comprises an outer shell (23), a polishing device one (24) and two polishing device two (25), the upper end of the workbench (1) is provided with a polishing switching assembly (3), one side of the polishing switching assembly (3) is provided with an adjusting assembly (4) capable of adjusting the angle of the two polishing device two (25), the upper end of the workbench (1) is provided with a positioning assembly (5) having an auxiliary positioning function for the steel plate blank, the positioning assembly (5) comprises four annular array positioning blocks (512), the outer sides of the four positioning blocks (512) are commonly provided with an avoiding assembly (6), the outer shell (23) can temporarily remove the positioning block (512) on one side of the steel plate blank during movement through the avoiding assembly (6), avoiding the polishing device one (24) and the polishing device two (25) from colliding with the positioning block (512) when polishing the side of the steel plate blank, the upper end of the workbench (1) is provided with a fixing assembly (7); The polishing switching assembly (3) comprises a guide groove one (31) opened in the upper end of the workbench (1), a slope groove (311) is opened in one side of the guide groove one (31), a guide groove two (312) is opened in one end of the slope groove (311) away from the guide groove one (31), a rotating baffle (313) is rotatably connected at the joint of the guide groove one (31) and the slope groove (311), a spring one (314) is fixedly connected to the outer surface of the rotating baffle (313) and the obtuse angle joint of the guide groove one (31); The upper end of the outer shell (23) is slidably connected with a sliding seat one (33), the upper end of the sliding seat one (33) is fixedly connected with the polishing device one (24), the upper end of the outer shell (23) is slidably connected with a sliding seat two (34), two movable grooves (341) are opened in the upper end of the sliding seat two (34), the inner surface of the sliding seat two (34) is rotatably connected with the two polishing device two (25), a guide column one (315) is fixedly connected to the left side of the sliding seat one (33), the outer surface of the guide column one (315) is slidably connected with the guide groove one (31), the slope groove (311) and the guide groove two (312), the outer surface of the guide column one (315) is slidably connected with the outer shell (23); The front side of the sliding seat one (33) is fixedly connected with a rack one (35), the outer surface of the rack one (35) is meshingly connected with a gear one (36), the lower end of the gear one (36) is rotatably connected with the bottom of the outer shell (23), the side of the gear one (36) away from the rack one (35) is meshingly connected with a rack two (37), when the sliding seat one (33) moves to one side, the sliding seat two (34) will be driven to move in the direction opposite to the sliding seat one (33) through the meshing of the rack one (35), the gear one (36) and the rack two (37). The adjusting assembly (4) comprises a rotating handle (41) rotatably connected to the outer surface of the sliding seat two (34), one end of the outer surface of the rotating handle (41) extending to the inner surface of the sliding seat two (34) is fixedly connected with a gear two (42), the outer surface of the gear two (42) is engagedly connected with two gear threes (43), the rear side of each of the two gear threes (43) is fixedly connected with a rotating shaft (44), the two gear threes (43) are engaged with each other, the outer surface of each of the two rotating shafts (44) is fixedly connected with a rotating arm (45), the upper end of each of the two rotating arms (45) is fixedly connected with the polishing device two (25) on the same side, and the outer surface of each of the two rotating arms (45) is rotatably connected with the movable groove (341) on the same side. The positioning assembly (5) comprises a fixed seat one (51) fixedly connected to the middle position of the workbench (1), the upper end of the fixed seat one (51) is annularly fixedly connected with four supporting seats (52), the middle position of each of the four supporting seats (52) is provided with a through groove (521), and the upper end of each of the four supporting seats (52) is fixedly connected with a supporting plate (53); a hydraulic device one (54) is installed at the lower end of the supporting plate (53), and a cross connecting frame (55) is fixedly connected to the lower end of the hydraulic device one (54). The four ends of the cross connecting frame (55) are rotatably connected with rotating seats (57), and the upper end of each of the four rotating seats (57) is rotatably connected with an L-shaped connecting frame (58). The position avoiding assembly (6) comprises a guide column two (61) fixedly connected to the front side of the outer shell (23) and a guide column three (62) fixedly connected to the rear side of the upper end of the outer shell (23). The position avoiding assembly (6) further comprises four fixed plates (63), the lower end of each of the four fixed plates (63) is fixedly connected with the positioning block (512) on the same side, the outer surface of each of the four fixed plates (63) is provided with a guide groove three (64), the upper end of each of the four guide groove threes (64) is provided with a guide groove four (65), the side, away from the adjusting seat (510), of each of the four L-shaped connecting frames (58) is provided with two sliding grooves two (66), the interior of each of the two sliding grooves two (66) on the same side is fixedly connected with a spring two (67), the upper end of each of the two spring twos (67) on the same side is fixedly connected with the lower end of the positioning block (512) on the same side, the outer surface of the guide column two (61) is slidably connected with the rear half of the guide groove three (64) and the guide groove four (65), and the outer surface of the guide column three (62) is slidably connected with the inner surface of the guide groove four (65).

2. A steel slab polishing machine according to claim 1, characterized in that: The moving assembly (2) comprises a conveying mechanism (21), and the upper end of the conveying mechanism (21) is fixedly connected with a mounting plate (22); the upper end of the workbench (1) is fixedly connected with a guide seat (221); the upper end of the mounting plate (22) is fixedly connected with an outer shell (23); and the right side of the outer shell (23) is fixedly connected with a slag collecting box (26).

3. A steel slab polishing machine according to claim 1, characterized in that: The inner part of each of the four through grooves (521) is fixedly connected with a limiting column (56), and the four ends of the cross connecting frame (55) respectively pass through the inner surface of the same side through groove (521) and are respectively in sliding connection with the same side limiting column (56).

4. A steel slab finishing machine as claimed in claim 3 wherein: The lower end of each of the four L-shaped connecting frames (58) is fixedly connected with a limiting block (59), one side of each of the four support bases (52) away from each other is fixedly connected with an adjusting base (510), the upper end of each of the four adjusting bases (510) is provided with a sliding groove I (511), the outer surface of each of the four limiting blocks (59) is in sliding connection with the same side sliding groove I (511), and one side of each of the four L-shaped connecting frames (58) away from each other is in sliding connection with the same side positioning block (512); when the hydraulic device I (54) drives the cross connecting frame (55) to rise, the four positioning blocks (512) are simultaneously opened outward, and the limiting on the steel plate blank is loosened; when the hydraulic device I (54) drives the cross connecting frame (55) to descend, the four positioning blocks (512) are simultaneously moved to the middle, and the steel plate blank is secondarily limited.

5. A steel slab polishing machine according to claim 1, wherein: The fixing assembly (7) comprises a fixing base II (71) fixedly connected with the upper end of the workbench (1), the fixing base II (71) is fixedly provided with a hydraulic device II (72) on one side, and the output end of the hydraulic device II (72) is fixedly connected with a pressing plate (73).

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