Steel frame end face polishing device special for steel structure building construction

Abstract

The utility model belongs to the field of polishing devices, and particularly relates to a special steel frame end face polishing device suitable for steel structure building construction, two conveying belts are arranged between two side plates, a multi-shaft driving assembly is arranged on the side wall of each side plate above each conveying belt, a first fixed circular plate is rotatably arranged at the output end of each multi-shaft driving assembly, and a second fixed circular plate is rotatably arranged at the output end of each first fixed circular plate. And a plurality of arc-shaped grinding plates are annularly and slidably arranged on the side wall of the first fixed circular plate, a grinding disc is rotatably arranged on one side of each arc-shaped grinding plate, and two grinding assemblies are slidably arranged between the two conveying belts. Through the arrangement of the arc-shaped polishing plate and other structures, the interior of long grooves of channel steel of different sizes can be further polished; and through the arrangement of assemblies such as a dull polish belt and the like, aiming at slight bending of the steel frame, the two polishing assemblies are stretched through elastic tensioning force of a plurality of third springs, so that the polishing assemblies can adaptively clamp and polish in the moving process of the steel frame.

Description

Technical Field

[0001] This utility model belongs to the technical field of grinding devices, and in particular relates to a grinding device for the end face of steel frame used in steel structure building construction. Background Technology

[0002] Steel structures are structures made of steel materials and are one of the main types of building structures. Their structure mainly consists of beams, columns, trusses, and other components made of shaped steel and steel plates. Rust removal and prevention processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing are used. The components are typically connected by welds, bolts, or rivets. Due to their light weight and ease of construction, they are widely used in large factories, stadiums, and high-rise buildings. Before being put on the market, steel structures require grinding, necessitating the use of specialized grinding equipment.

[0003] Patent application CN202222327899.0 discloses a steel frame end face grinding device for wood-steel structure construction, comprising a frame and a grinding frame. The grinding frame is externally mounted on the frame, with a tension wheel mounted at its top. An auxiliary wheel is mounted on the top of the grinding frame on one side of the tension wheel, and a connecting wheel is mounted on the top of the grinding frame on the other side. An abrasive belt is provided on the outer wall of the connecting wheel, with one end extending to the surfaces of the connecting wheel, auxiliary wheel, and tension wheel. A transmission belt is located at the top of the frame, with a drive block mounted at its top, and a clamping frame mounted at its top. This invention not only enables automatic conveying and rapid grinding of steel frame end faces, improving operational convenience during steel frame grinding, but also increases the efficiency of steel frame grinding.

[0004] Existing technologies utilize mechanisms such as abrasive belts to achieve rapid grinding during the conveying process, thus improving grinding efficiency. However, shortcomings still exist:

[0005] First, steel structures used in building construction are usually assembled from channel steel. Common grinding devices cannot grind the inside of the grooves in the channel steel, which makes it impossible to completely grind the entire steel frame and affects its use in subsequent building construction.

[0006] Secondly, during the construction process, the outer surface of the steel frame may develop burrs or protrusions, which can easily cause damage to the grinding components during the grinding process, thus affecting the overall grinding progress of the steel frame.

[0007] Finally, during long-term use in construction, the steel frame may be slightly bent, which is not easily observed by the human eye. This can easily lead to inadequate grinding of the upper and lower surfaces of the bent parts of the steel frame during the actual grinding process, thus affecting the overall grinding effect. Utility Model Content

[0008] To overcome the shortcomings of existing technologies, this invention provides a steel frame end face grinding device suitable for steel structure building construction. Through the design of arc-shaped grinding plates and other structures, this invention can further grind the interior of the long grooves of channel steel. The distance between multiple arc-shaped grinding plates can be adaptively adjusted according to the size of the long grooves of the channel steel. Through the inclusion of components such as abrasive belts, slight bending of the steel frame can be addressed by the elastic tension of multiple third springs, which stretches the upper and lower grinding components, allowing the grinding components to adaptively clamp and grind during the movement of the steel frame.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a steel frame end face grinding device suitable for steel structure building construction, comprising two side plates, two conveyor belts arranged between the two side plates, a multi-axis drive assembly arranged on the side wall of each side plate above each conveyor belt, a first fixed circular plate rotatably arranged at the output end of the multi-axis drive assembly, a plurality of arc-shaped grinding plates slidably arranged in a ring on the side wall of the first fixed circular plate, a grinding disc rotatably arranged on one side of each arc-shaped grinding plate, and two grinding assemblies slidably arranged between the two conveyor belts.

[0010] Optionally, a second sliding rod is fixedly arranged on the side wall of the first fixed circular plate among the multiple arc-shaped grinding plates. A sliding cylinder is slidably arranged outside the second sliding rod, and a first sliding rod is slidably arranged inside the sliding cylinder. One end of the first sliding rod is slidably connected to the second sliding rod, and a second fixed circular plate is arranged at one end of the first sliding rod. One side of the second fixed circular plate is fixedly connected to one side wall of the grinding disc. Multiple connecting rods are rotatably connected between each arc-shaped grinding plate and the sliding cylinder.

[0011] Optionally, a plurality of first springs are provided on the outside of the first slide rod between the slide cylinder and the second slide rod, and a plurality of second springs are provided on the outside of the first slide rod between the slide cylinder and the second fixed circular plate.

[0012] Optionally, the polishing assembly includes two fourth sliders slidably disposed inside the side plate, and a plurality of rotating support rollers rotatably disposed between the two fourth sliders, with abrasive belts disposed on the outer circular surfaces of the plurality of rotating support rollers.

[0013] Optionally, each of the side plates has a fourth sliding groove on one side of the frosted belt. The fourth sliding groove is slidably connected to the fourth slider. Multiple third springs are connected between every two adjacent fourth sliders. A U-shaped frame is provided on the end face of each fourth slider. A limit slider is slidably provided inside each U-shaped frame. A third push cylinder is provided on one side of the side plate end face of each U-shaped frame. The output end of the third push cylinder passes through the side plate and the U-shaped frame and is fixedly connected to the limit slider.

[0014] Optionally, the fourth slider is provided with a third slide groove on both sides of the side plate side wall, and a third slider is slidably disposed inside each third slide groove. A fixed rotating shaft is rotatably connected between every two opposing third sliders.

[0015] Optionally, a connecting slide plate is slidably disposed on one side of each of the third sliders inside the third slide groove, and multiple elastic elements are connected between each connecting slide plate and its adjacent third slider. A second push cylinder is disposed on the end face of the side plate above each of the connecting slide plates, and the output end of each second push cylinder passes through the side plate and is fixedly connected to the upper end face of the connecting slide plate.

[0016] Optionally, a vibration sensor is provided on the upper surface of each of the third sliders.

[0017] In summary, compared with existing technologies, the beneficial effects of this solution are as follows:

[0018] (1) This utility model can further grind the inside of the long groove of the channel steel by setting up the arc-shaped grinding plate and the grinding disc, which effectively improves the overall grinding effect of the steel frame. Moreover, the distance between multiple arc-shaped grinding plates can be adjusted according to the size of the long groove of the channel steel, which effectively improves the adaptability of the grinding device.

[0019] (2) By setting up components such as a sanding belt, a third spring, and a U-shaped frame, this utility model can stretch the upper and lower grinding components by the elastic tension of multiple third springs themselves to address the slight bending of the steel frame. This allows the grinding components to be adaptively clamped and ground during the movement of the steel frame, thereby effectively improving the grinding effect on the surface of the steel frame and thus improving the overall strength of the steel frame.

[0020] (3) By setting up elastic elements, vibration sensors and fixed rotating shafts, the fixed rotating shafts work with the conveyor belt to further stabilize and clamp the steel frame during the horizontal movement of the steel frame. At the same time, under the elastic tension of the elastic elements themselves, the fixed rotating shafts can be effectively prevented from being bumped by burrs on the surface of the steel frame. The distance between the two grinding components can be controlled by the vibration of the fixed rotating shafts themselves and the vibration detection of the vibration of the fixed rotating shafts by the vibration sensor, so as to prevent the grinding belt from being scratched by large burrs on the steel frame. At the same time, larger burrs can be ground and eliminated in a targeted manner, which effectively improves the grinding effect of the device on the steel frame. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present utility model;

[0022] Figure 2 This is a side view of the present invention;

[0023] Figure 3 This is the front view of the present invention;

[0024] Figure 4 for Figure 2 A three-dimensional cross-sectional view at point AA;

[0025] Figure 5 for Figure 3 3D cross-sectional view at point BB;

[0026] Figure 6 for Figure 5 A magnified view of a section at point C.

[0027] Figure 7 for Figure 4 Enlarged view of a section at point D;

[0028] Figure 8 for Figure 4 A magnified view of a section at point E in the middle.

[0029] In the diagram: Side plate 10, First slide groove 11, First slider 12, First push cylinder 13, First motor 14, First fixed circular plate 15, Arc-shaped grinding plate 16, Second slide groove 17, Second slider 18, Slide cylinder 19, First slide rod 20, First spring 21, Second spring 22, Second fixed circular plate 23, Grinding disc 24, Connecting rotating rod 25, Conveyor belt 26, Supporting rotating shaft 27, Third slide groove 28, Third slider 29, Connecting slide plate 30, Elastic element 31, Vibration sensor 32, Fixed rotating shaft 33, Second push cylinder 34, Fourth slide groove 35, Fourth slider 36, Grinding belt 37, Rotating support roller 38, Third spring 39, U-shaped frame 40, Third push cylinder 41, Limiting slider 42, Second motor 43, Third motor 44, Second slide rod 45, Fourth push cylinder 46. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0031] Example 1:

[0032] like Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, a steel frame end face grinding device suitable for steel structure building construction includes two side plates 10, with two conveyor belts 26 arranged between the two side plates 10. A multi-axis drive assembly is arranged above each conveyor belt 26 on the side wall of the side plate 10. A first fixed circular plate 15 is rotatably mounted at the output end of the multi-axis drive assembly. The multi-axis drive assembly includes a first slide groove 11 disposed on the end face of the side plate 10. A first slider 12 is slidably disposed inside the first slide groove 11. A first push cylinder 13 is disposed on one side of the first slider 12. A first motor 14 is disposed on one side of the output end of the first push cylinder 13 and the first fixed circular plate 15. One side wall of 5 is fixedly connected. A fourth push cylinder 46 is provided above the upper end face of the side plate 10 above each first slider 12. The output end of the fourth push cylinder 46 passes through the side plate 10 and is fixedly connected to the upper end face of the first slider 12. Multiple arc-shaped grinding plates 16 are slidably arranged in a ring on the side wall of the first fixed circular plate 15. Multiple second sliding grooves 17 are provided on the first fixed circular plate 15. A second slider 18 is slidably arranged inside each second sliding groove 17. One end of each second slider 18 is fixedly connected to one end of its adjacent arc-shaped grinding plate 16. A grinding disc 24 is rotatably arranged on one side of the arc-shaped grinding plate 16. Two grinding components are slidably arranged between the two conveyor belts 26.

[0033] Specifically, the first motor 14 is a common motor that provides power for the rotation of components such as the arc-shaped grinding plate 16 and the grinding disc 24, which is existing technology. The first push cylinder 13 and the fourth push cylinder 46 are both common electric push cylinders, hydraulic push cylinders, etc., which can drive the arc-shaped grinding plate 16 and the grinding disc 24 to move horizontally, so that the arc-shaped grinding plate 16 and the grinding disc 24 can be inserted into the long groove of the steel frame for grinding. At the same time, the fourth push cylinder 46 drives the arc-shaped grinding plate 16 and the grinding disc 24 to move horizontally and vertically, so as to perform adaptive grinding for steel frames of different sizes.

[0034] The conveyor belt 26 is a common conveyor belt, which is existing technology. The conveyor belt 26 drives the steel frame to move horizontally, and together with other components of the device, it forms a moving grinding of the steel frame, effectively improving the overall grinding efficiency.

[0035] Multiple arc-shaped grinding plates 16 are evenly arranged in a ring and can slide on the end face of the first fixed circular plate 15 through the setting of the second sliding groove 17 and the second sliding block 18, so as to make adaptive adjustments according to the width of the long groove on the steel frame, thereby achieving the grinding treatment of the steel frame.

[0036] Furthermore, as shown in Figures 1 and 2, the polishing assembly includes two fourth sliders 36 slidably disposed inside the side plate 10, and a plurality of rotating support rollers 38 rotatably disposed between the two fourth sliders 36. Abrasive belts 37 are disposed on the outer side walls of the plurality of rotating support rollers 38. A third motor 44 is disposed on one side wall of one of the fourth sliders 36 in each polishing assembly. The third motor 44 is a common motor, which is the prior art. The third motor 44 provides power for the rotation of the rotating support rollers 38.

[0037] Specifically, the output end of the third motor 44 drives the rotating support roller 38 to rotate, and the rotation of the rotating support roller 38 drives the abrasive belt 37 to rotate. The abrasive belt 37 contacts the end face of the steel frame, forming a grinding operation on the steel frame.

[0038] Furthermore, such as Figure 1 , Figure 2 , Figure 4 and Figure 8 As shown, each side plate 10 has a fourth sliding groove 35 on one side of the frosted belt 37. The fourth sliding groove 35 is slidably connected to the fourth slider 36. Multiple third springs 39 are connected between every two adjacent fourth sliders 36. A U-shaped frame 40 is provided on the end face of each fourth slider 36. A limit slider 42 is slidably provided inside each U-shaped frame 40. A third push cylinder 41 is provided on one side of the side plate 10. The output end of the third push cylinder 41 passes through the side plate 10 and the U-shaped frame 40 and is fixedly connected to the limit slider 42.

[0039] Specifically, the third push cylinder 41 is a common push cylinder. The output end of the third push cylinder 41 drives the limiting slider 42 to move vertically. The limiting slider 42 drives the U-shaped frame 40 and the fourth slider 36 and other components to move vertically. The third push cylinder 41, which is set on the upper and lower end faces of the side plate 10, drives the two fourth sliders 36 sliding inside the same fourth slide groove 35 to move in opposite directions. This causes the two fourth sliders 36 to stretch the multiple third springs 39 connected to them. When the steel frame moves between the two abrasive belts 37, the multiple third push cylinders 41 can be activated to bring the two abrasive belts 37 closer to each other until the abrasive belts 37 contact the end face of the steel frame. At this time, the output end of the third push cylinder 41 is controlled to continue to extend until the limiting slider 42 is located in the middle of the U-shaped frame 40. Then, under the elastic tension of the multiple third springs 39, the two grinding components are stretched, so that the two abrasive belts 37 can adaptably grind the upper and lower end faces of the steel frame, effectively improving the grinding effect of the device on the steel frame.

[0040] Furthermore, such as Figure 1 , Figure 4 and Figure 7 As shown, the fourth slider 36 has a third slide groove 28 on both sides of the side wall of the side plate 10. A third slider 29 is slidably disposed inside each third slide groove 28. A fixed rotating shaft 33 is rotatably connected between each pair of opposite third sliders 29. A connecting slide plate 30 is slidably disposed on one side of each third slider 29 inside the third slide groove 28. Multiple elastic elements 31 are connected between each connecting slide plate 30 and its adjacent third slider 29. A second push cylinder 34 is disposed on the end face of the side plate 10 above each connecting slide plate 30. The output end of each second push cylinder 34 passes through the side plate 10 and is fixedly connected to the upper end face of the connecting slide plate 30.

[0041] Specifically, the elastic element 31 is a common elastic folding piece, which can provide elastic support between the connecting slide plate 30 and the third slider 29. When the fixed rotating shaft 33 and the conveyor belt 26 clamp and stabilize the steel frame, the elastic deformation of the elastic element 31 can effectively prevent the fixed rotating shaft 33 from being damaged by burrs on the end face of the steel frame.

[0042] The second push cylinder 34 is a common electric push cylinder, hydraulic push cylinder, etc., which realizes the technology that the output end of the second push cylinder 34 drives the connecting slide plate 30 and other components to slide vertically inside the third slide groove 28, so that the fixed rotating shaft 33 can be adjusted in height according to the steel frame of different dimensions, thereby further increasing the adaptability and practicality of the device.

[0043] Furthermore, such as Figure 1 and Figure 6As shown, a second slide rod 45 is fixedly installed on the side wall of the first fixed circular plate 15 between multiple arc-shaped grinding plates 16. A slide cylinder 19 is slidably installed outside the second slide rod 45. A first slide rod 20 is slidably installed inside the slide cylinder 19. One end of the first slide rod 20 is slidably connected to the second slide rod 45. A second fixed circular plate 23 is installed at one end of the first slide rod 20. One side of the second fixed circular plate 23 is fixedly connected to one side wall of the grinding disc 24. Multiple connecting rods 25 are rotatably connected between each arc-shaped grinding plate 16 and the slide cylinder 19. Multiple first springs 21 are installed outside the first slide rod 20 between the slide cylinder 19 and the second slide rod 45. Multiple second springs 22 are installed outside the first slide rod 20 between the slide cylinder 19 and the second fixed circular plate 23.

[0044] Specifically, the elastic tension of the second spring 22 is greater than that of the first spring 21. When grinding the inside of the long groove of the steel frame, the grinding disc 24 first contacts the inner bottom surface of the long groove. Under the action of the output end of the first push cylinder 13, the components such as the second slide 17 continue to move into the long groove of the steel frame. At this time, because the elastic tension of the second spring 22 is greater than that of the first spring 21, the grinding disc 24 will drive the second fixed circular plate 23 and the first slide rod 20 to move closer to the first fixed circular plate 15. At this time, one end of the first slide rod 20 will move relative to the second slide rod 45 towards the second slide rod. The internal sliding of 45 causes the second fixed circular plate 23 to drive the second spring 22 to support one end of the slide cylinder 19. At this time, the slide cylinder 19 will move closer to the first fixed circular plate 15. Meanwhile, the arc-shaped grinding plate 16 will rotate under the action of multiple connecting rotating rods 25, causing the multiple connecting rotating rods 25 to support the arc-shaped grinding plate 16 to expand outward. At the same time, the second slider 18 set at one end of the arc-shaped grinding plate 16 will slide along the second sliding groove 17 until the arc-shaped grinding plate 16 contacts the side wall of the long groove on the steel frame, forming a grinding and cleaning of the inside of the long groove on the steel frame.

[0045] The grinding disc 24 and the second fixed circular plate 23 are detachably connected and can be replaced according to the size of the long groove on the steel frame of different dimensions.

[0046] First, based on the required groove size of the steel frame to be ground, multiple fourth push cylinders 46 are activated. The output end of the fourth push cylinder 46 drives the first slider 12 and other components to move vertically, so that multiple arc-shaped grinding plates 16 and grinding discs 24 are at the same level as the long groove of the steel frame. Then, two conveyor belts 26 are activated, causing the conveyor belts 26 to drive the steel frame to move horizontally. When one end of the steel frame moves to one side of the first arc-shaped grinding plate 16 and other components, the corresponding first push cylinder 13 is activated, so that the output end of the first push cylinder 13 drives multiple arc-shaped grinding plates 16 and other components to move into the interior of the long groove until the grinding disc 24 contacts the inner side wall of the long groove of the steel frame. When multiple arc-shaped grinding plates 16 contact the upper and lower side walls of the long groove of the steel frame, the first motor 14 is activated. The output end of the first motor 14 drives multiple arc-shaped grinding plates 16 and grinding discs 24 to rotate, forming a grinding process on the interior of the long groove of the steel frame. The above process is a continuous action, and the conveyor belt 26 is always running during this process.

[0047] Then, when one end of the steel frame moves to the side of the first fixed rotating shaft 33, the corresponding second push cylinder 34 is activated. The output end of the second push cylinder 34 drives the third slider 29 and the fixed rotating shaft 33 and other components to move downward until the fixed rotating shaft 33 is in close contact with the upper end surface of the steel frame, forming a downward pressure and fixation on the steel frame.

[0048] Finally, when one end of the steel frame moves between the two abrasive belts 37, multiple third motors 44 and third push cylinders 41 are activated. The third push cylinders 41 drive the fourth slider 36 and other components to move downward until the two abrasive belts 37 form a tight contact with the upper and lower end faces of the steel frame under the elastic tension of multiple third springs 39. At the same time, the third motors 44 drive the abrasive belts 37 and other components to rotate to grind the upper and lower end faces of the steel frame.

[0049] This device does not require distinguishing between the inlet and outlet ends. The grinding of the steel frame can be completed by adjusting the driving direction of different drive components according to the inlet end of the steel frame.

[0050] Example 2:

[0051] Based on Example 1, further examples are made, such as... Figure 7 As shown, a vibration sensor 32 is provided on the upper surface of each third slider 29.

[0052] Specifically, the vibration sensor 32 is a common vibration sensor that can detect the vibration amplitude of the third slider 29. Based on the vibration of the third slider 29 and the fixed rotating shaft 33, the downward pressure of the fixed rotating shaft 33 on the steel frame is adjusted, so that the steel frame can be more stable when moving inside the device. At the same time, it can also detect whether the fixed rotating shaft 33 is hit by large burrs, and then control the multiple third push cylinders 41 to drive the grinding components to adjust the grinding force on the steel frame, effectively reducing the damage to the grinding components caused by impact.

[0053] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0054] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0055] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A steel frame end face polishing device suitable for steel structure building construction, comprising two side plates (10), two conveying belts (26) are arranged between the two side plates (10), characterized in that, The upper side of each conveying belt (26) is provided with a multi-shaft driving assembly on the side wall of the side plate (10), the output end of the multi-shaft driving assembly is rotationally provided with a first fixed circular plate (15), a plurality of arc-shaped polishing plates (16) are slidingly arranged in a ring shape on the side wall of the first fixed circular plate (15), one side of the arc-shaped polishing plate (16) is rotationally provided with a polishing disc (24), and two polishing assemblies are slidingly arranged between the two conveying belts (26).

2. The steel frame end face polishing device for steel structure building construction according to claim 1, characterized in that, A second sliding rod (45) is fixedly arranged on the side wall of the first fixed circular plate (15) between the plurality of arc-shaped polishing plates (16), a sliding cylinder (19) is slidingly arranged on the outside of the second sliding rod (45), a first sliding rod (20) is slidingly arranged in the sliding cylinder (19), one end of the first sliding rod (20) is slidingly connected with the second sliding rod (45), one end of the first sliding rod (20) is provided with a second fixed circular plate (23), and one side of the second fixed circular plate (23) is fixedly connected with one side wall of the polishing disc (24). A plurality of connecting rotating rods (25) are rotationally arranged between each arc-shaped polishing plate (16) and the sliding cylinder (19).

3. The steel frame end face polishing device for steel structure construction according to claim 2, characterized in that, A plurality of first springs (21) are arranged outside the first sliding rod (20) between the sliding cylinder (19) and the second sliding rod (45), and a plurality of second springs (22) are arranged outside the first sliding rod (20) between the sliding cylinder (19) and the second fixed circular plate (23).

4. The steel frame end face polishing device for steel structure construction according to claim 1, characterized in that, The polishing assembly comprises two fourth sliding blocks (36) slidingly arranged in the inside of the side plate (10), a plurality of rotating support rollers (38) are rotationally arranged between the two fourth sliding blocks (36), and a grinding belt (37) is arranged on the outer cylindrical surface of the rotating support rollers (38).

5. The steel frame end face polishing device for steel structure construction according to claim 4, characterized in that, A fourth sliding groove (35) is arranged on one side of the grinding belt (37) in the inside of each side plate (10), the fourth sliding groove (35) is slidingly connected with the fourth sliding block (36), a plurality of third springs (39) are arranged between every two adjacent fourth sliding blocks (36), a U-shaped frame (40) is arranged on the end surface of each fourth sliding block (36), a limiting sliding block (42) is slidingly arranged in the inside of each U-shaped frame (40), a third push cylinder (41) is arranged on one side of each U-shaped frame (40) on the end surface of the side plate (10), and the output end of the third push cylinder (41) penetrates through the side plate (10) and the U-shaped frame (40) and is fixedly connected with the limiting sliding block (42).

6. The steel frame end face polishing device for steel structure construction according to claim 5, characterized in that, Third sliding grooves (28) are arranged on the side walls of the side plate (10) on both sides of the fourth sliding block (36), third sliding blocks (29) are slidingly arranged in the interiors of the third sliding grooves (28), and fixed rotating shafts (33) are rotationally arranged between every two opposite third sliding blocks (29).

7. The steel frame end face polishing device for steel structure construction according to claim 6, characterized in that, One side of each third sliding block (29) is slidably provided with a connecting sliding plate (30) inside the third sliding groove (28), a plurality of elastic members (31) are connected and arranged between each connecting sliding plate (30) and the third sliding block (29) adjacent thereto, and the upper side of each connecting sliding plate (30) is provided with a second push cylinder (34) on the end face of the side plate (10), and the output end of each second push cylinder (34) is fixedly connected with the upper end face of the connecting sliding plate (30) through the side plate (10).

8. The steel frame end face polishing device for steel structure construction according to claim 7, characterized in that, The upper end face of each third sliding block (29) is provided with a vibration sensor (32).

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