Steel beam welding seam polishing device

Abstract

The utility model belongs to the technical field of metal weld joint polishing, and particularly relates to a steel beam weld joint polishing device which comprises a mounting rod. The middle part of the mounting rod is in threaded connection with a rotating cylinder; the middle part of the rotating cylinder is rotationally connected with a mounting frame; a plurality of fixing rods are fixedly connected to the bottom of the mounting frame; rollers are rotationally connected to the bottoms of the fixing rods; the middle part of the mounting rod is fixedly connected with a limiting frame; the multiple fixing rods are connected to the middle of the limiting frame in a sliding mode. The interior of the mounting rod is rotationally connected with a connecting shaft; the bottom end of the connecting shaft is fixedly connected with a grinding block. A motor is fixedly connected to the top of the mounting rod; the output end of the motor is fixedly connected with the top end of the connecting shaft; through the structure, when the welding seam of the steel beam is polished, the polishing block can move in the direction parallel to the steel beam, so that the polishing surface of the welding seam becomes flat, and the influence on the welding quality is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal weld grinding, in particular to a steel beam weld grinding device. Background Art

[0002] Steel beam welds are metal connection parts formed during the steel beam connection process. Usually, two or more steel beam components are connected together through a welding process. The quality of the weld is crucial to the overall performance and safety of the steel beam.

[0003] After welding of steel beams, the welds need to be polished so that the appearance of the welds meets the relevant welding standards. At the same time, polishing the welds can also remove defects such as pores and cracks in the welds, improve the quality of the welds, increase the fatigue stress strength of the structure, and ensure the safety and durability of the structure. However, in the process of polishing the welds of steel beams, it is found that the existing weld polishing device is prone to deflection during movement and polishing, making it difficult for the polishing block to remain parallel to the weld surface, resulting in an uneven polished surface of the weld, which has a certain impact on the welding quality.

[0004] To this end, the utility model provides a steel beam weld grinding device. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a steel beam weld grinding device described in the utility model comprises a mounting rod; a rotating cylinder is threadedly connected to the middle part of the mounting rod; a mounting frame is rotatably connected to the middle part of the rotating cylinder; a plurality of fixing rods are fixedly connected to the bottom of the mounting frame; a roller is rotatably connected to the bottom of the fixing rod; a limiting frame is fixedly connected to the middle part of the mounting rod; a plurality of fixing rods are slidably connected to the middle part of the limiting frame; a connecting shaft is rotatably connected to the inside of the mounting rod; a grinding block is fixedly connected to the bottom end of the connecting shaft; a motor is fixedly connected to the top of the mounting rod; the output end of the motor is fixedly connected to the top end of the connecting shaft; through the above structure, when grinding the steel beam weld, the grinding block can be moved in a direction parallel to the steel beam, so that the grinding surface of the weld can be made flat, reducing the impact on the welding quality.

[0007] Preferably, a plurality of slots are provided in the middle of the mounting rod; a handle is rotatably connected to the middle of the mounting rod; a slide is slidably connected to the middle of the handle; a clamping plate is fixedly connected to the side of the slide facing the slot; a pair of springs are fixedly connected to the side of the slide away from the slot; the other end of the spring is fixedly connected to the middle of the handle; through the above structure, the weld grinding device can be conveniently moved in a direction parallel to the surface of the steel beam, so that the grinding block can remain parallel to the weld surface of the steel beam, thereby keeping the grinding surface of the weld flat and improving the weld grinding quality.

[0008] Preferably, the middle parts of the plurality of fixed rods are rotatably connected to a first gear; a plurality of bristles are fixed to the bottom of the first gear; the plurality of bristles are arranged in a circular array to surround the roller inside; through the above structure, the unevenness of the weld grinding surface caused by the bumping of the device can be reduced.

[0009] Preferably, a pair of fan blades are fixedly connected to the middle of the connecting shaft; the pair of fan blades are arranged in a circular array with the connecting shaft as the axis; through the above structure, the debris polished by the grinding block is blown away, reducing the impact on the operator's line of sight.

[0010] Preferably, a protective tube is fixedly connected to the middle of the fan blade; the protective tube surrounds a pair of fan blades and is arranged inside; through the above structure, the possibility of high-speed rotating fan blades causing harm to personnel or other objects is reduced.

[0011] Preferably, a second gear is fixedly connected to the middle of the protective tube; the second gear is meshed with the plurality of first gears; through the above structure, the ability to clean impurities on the surface of the steel beam is improved, further reducing the occurrence of bumps in the device.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The utility model describes a steel beam weld grinding device, which grinds the weld by rotating a rotating cylinder to make multiple rollers contact with the surface of the steel beam, and then starts a motor to drive the grinding block to rotate and grind the weld. The device is driven to move while grinding. At this time, multiple rollers will move above the weld, so that the grinding block moves in a direction parallel to the steel beam, thereby making the grinding surface of the weld smooth and reducing the impact on the welding quality.

[0014] 2. The utility model describes a steel beam weld grinding device, which is achieved by holding a handle and pulling the slide plate in a direction away from the slot, rotating the handle to a suitable angle according to the operator's position, and then releasing the slide plate to allow the card plate to enter the interior of the slot under the elastic force of the spring, and then holding the handle with one hand to push the device for translation, and holding the top of the mounting rod with the other hand to maintain balance, so that the device can move in a direction parallel to the surface of the steel beam, thereby keeping the grinding surface of the weld flat and improving the weld grinding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the mounting frame in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the handle in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the second gear in the utility model;

[0020] In the figure: 1. mounting rod; 12. rotating cylinder; 13. mounting frame; 14. fixing rod; 15. roller; 16. limiting frame; 17. connecting shaft; 18. grinding block; 19. motor; 2. slot; 21. handle; 22. slide plate; 23. clamping plate; 24. spring; 3. first gear; 31. bristles; 4. fan blades; 5. protective cylinder; 6. second gear; 7. blocking net. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1 to Figure 2As shown, a steel beam weld grinding device described in an embodiment of the utility model comprises a mounting rod 1; a rotating cylinder 12 is threadedly connected to the middle part of the mounting rod 1; a mounting frame 13 is rotatably connected to the middle part of the rotating cylinder 12; a plurality of fixing rods 14 are fixedly connected to the bottom of the mounting frame 13; a roller 15 is rotatably connected to the bottom of the fixing rod 14; a limiting frame 16 is fixedly connected to the middle part of the mounting rod 1; a plurality of fixing rods 14 are slidably connected to the middle part of the limiting frame 16; a connecting shaft 17 is rotatably connected to the inside of the mounting rod 1; a grinding block 18 is fixedly connected to the bottom end of the connecting shaft 17; a motor 19 is fixedly connected to the top of the mounting rod 1; the output end of the motor 19 is fixedly connected to the top end of the connecting shaft 17; when working, the handheld device places the device on the steel beam The weld is moved above the grinding block 18, and the grinding block 18 is brought into contact with the weld surface. The rotating cylinder 12 is then rotated to move up and down in the middle of the mounting rod 1, thereby driving the plurality of rollers 15 to move. The plurality of rollers 15 are adjusted to contact with the surface of the steel beam. The motor 19 is then started to drive the grinding block 18 to rotate, thereby grinding the weld. The device is driven to move while grinding. At this time, the plurality of rollers 15 will move above the weld, thereby enabling the grinding block 18 to move in a path parallel to the surface of the steel beam, thereby enabling the weld surface to be polished flat. Through the above structure, the movement of the grinding block 18 can be made smooth when grinding the steel beam weld, thereby enabling the polished surface of the weld to be made flat, thereby reducing the impact on the welding quality.

[0023] like Figures 1 to 3As shown, a plurality of slots 2 are provided in the middle of the mounting rod 1; a handle 21 is rotatably connected to the middle of the mounting rod 1; a slide plate 22 is slidably connected to the middle of the handle 21; a clamping plate 23 is fixedly connected to the side of the slide plate 22 facing the slot 2; a pair of springs 24 are fixedly connected to the side of the slide plate 22 away from the slot 2; the other end of the spring 24 is fixedly connected to the middle of the handle 21; during operation, when the handheld device is used for grinding, the hand generally holds the top of the mounting rod 1 and applies force to drive the device to move, but this method easily causes the top of the mounting rod 1 to deviate, making it difficult for the mounting rod 1 to maintain perpendicularity to the surface of the steel beam, which easily leads to an angle between the grinding block 18 and the weld of the steel beam, resulting in an uneven grinding surface. At this time, the handle 24 can be held to prevent the grinding block 18 from being uneven. The hand 21 pulls the slide plate 22 in the direction away from the slot 2, so that the card plate 23 is disengaged from the inside of the slot 2, and then the handle 21 is rotated to a suitable angle according to the position of the operator, and then the slide plate 22 is released to allow the card plate 23 to enter the inside of the slot 2 under the elastic force of the spring 24, so that the handle 21 cannot continue to rotate. When grinding, one hand can hold the handle 21 to push the device for translation, and the other hand can hold the top of the mounting rod 1 to maintain balance, so that the device can move in a direction parallel to the surface of the steel beam. Through the above structure, the weld grinding device can be conveniently moved in a direction parallel to the surface of the steel beam, so that the grinding block 18 can remain parallel to the surface of the steel beam weld, thereby keeping the grinding surface of the weld flat and improving the weld grinding quality.

[0024] like Figure 1 to Figure 2 As shown, the middle parts of the plurality of fixed rods 14 are rotatably connected to the first gear 3; the bottom of the first gear 3 is fixedly connected to a plurality of bristles 31; the plurality of bristles 31 are arranged in a circular array to surround the roller 15 inside; during operation, when the roller 15 rolls on the surface of the steel beam, the plurality of bristles 31 can clean some impurities attached to the steel beam on the moving path of the roller 15, thereby reducing the occurrence of bumps when the roller 15 passes through some impurities, thereby reducing the occurrence of unevenness of the weld grinding surface caused by the bumps of the device.

[0025] like Figures 1 to 4 As shown, a pair of fan blades 4 is fixedly connected to the middle part of the connecting shaft 17; the pair of fan blades 4 are arranged in a circular array with the connecting shaft 17 as the axis; during operation, as the grinding progresses, the pair of fan blades 4 will rotate along with the connecting shaft 17, thereby driving the surrounding air to flow toward the grinding block 18, thereby cooling the grinding block 18 that is rotating at a high speed, and at the same time blowing away the debris ground off by the grinding block 18, reducing the impact on the operator's line of sight.

[0026] like Figures 1 to 4As shown, a protective tube 5 is fixedly connected to the middle of the fan blade 4; the protective tube 5 surrounds a pair of fan blades 4 and is arranged inside; during operation, when a pair of fan blades 4 rotates at high speed along with the connecting shaft 17, the setting of the protective tube 5 can surround the fan blades 4 inside, thereby reducing the possibility of damage to personnel or other objects caused by the high-speed rotating fan blades 4.

[0027] like Figures 1 to 4 As shown, a second gear 6 is fixedly connected to the middle of the protective tube 5; the second gear 6 is meshed with multiple first gears 3; when working, the second gear 6 will rotate with the protective tube 5, thereby driving the multiple first gears 3 to rotate, and then driving the multiple bristles 31 to rotate around the roller 15, thereby improving the cleaning ability of impurities on the surface of the steel beam and further reducing the occurrence of bumps in the device.

[0028] like Figure 4 As shown, a blocking net 7 is fixedly connected to the bottom of the protective tube 5; the size and shape of the blocking net 7 correspond to the bottom end of the protective tube 5; when working, when the device grinds the lower weld of the steel beam, the grinding block 18 will grind the weld upwards, and at this time, the ground debris will fall downwards, and part of the debris will be blocked by the connecting shaft 17, making it difficult to fall on the surface of the high-speed rotating blades 4, and further difficult to be accelerated and thrown away due to the impact of the blades 4, thereby reducing the impact on the operator.

[0029] During operation, the handheld device is placed on the weld of the steel beam, and the grinding block 18 is brought into contact with the weld surface. Then, the rotating cylinder 12 is rotated to move up and down in the middle of the mounting rod 1, thereby driving the plurality of rollers 15 to move. The plurality of rollers 15 are brought into contact with the surface of the steel beam by adjustment, and then the motor 19 is started to drive the grinding block 18 to rotate, thereby grinding the weld. While grinding, the device is driven to move. At this time, the plurality of rollers 15 will move above the weld, thereby enabling the grinding block 18 to move in a path parallel to the surface of the steel beam. In this way, the surface of the weld can be polished flat. When the handheld device is used for polishing, the hand generally holds the top of the mounting rod 1 and applies force to drive the device to move. However, this method easily causes the top of the mounting rod 1 to deviate, making it difficult for the mounting rod 1 to maintain perpendicularity to the surface of the steel beam, which easily leads to an angle between the polishing block 18 and the weld of the steel beam, resulting in an uneven polishing surface. At this time, the handle 21 can be held and the slide plate 22 can be pulled away from the card slot 2 to disengage the card plate 23 from the inside of the card slot 2, and then the handle 21 can be turned to close according to the position of the operator. The slider 22 is then released to allow the card plate 23 to enter the card slot 2 under the elastic force of the spring 24, so that the handle 21 cannot continue to rotate. When grinding, one hand can hold the handle 21 to push the device to move horizontally, and the other hand can hold the top of the mounting rod 1 to maintain balance, so that the device can move in a direction parallel to the surface of the steel beam. When the roller 15 rolls on the surface of the steel beam, the multiple bristles 31 can clean some impurities attached to the steel beam on the moving path of the roller 15, thereby reducing the bumps of the roller 15 when passing through some impurities. As the grinding progresses, a pair of fan blades 4 will rotate along with the connecting shaft 17, thereby driving the surrounding air to flow in the direction of the grinding block 18, thereby cooling the grinding block 18 that is grinding at high speed, and blowing away the debris ground off by the grinding block 18. When the pair of fan blades 4 rotate at high speed along with the connecting shaft 17, the setting of the protective tube 5 can surround the fan blades 4 inside, and the second gear 6 will rotate along with the protective tube 5, thereby driving the multiple first gears 3 to rotate, and then driving the multiple bristles 31 to rotate around the roller 15, thereby improving the ability to clean impurities on the surface of the steel beam.

[0030] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A steel beam weld grinding device, comprising a mounting rod (1); characterized in that: The middle part of the mounting rod (1) is threadedly connected to a rotating cylinder (12); the middle part of the rotating cylinder (12) is rotatably connected to a mounting frame (13); a plurality of fixing rods (14) are fixedly connected to the bottom of the mounting frame (13); the bottom of the fixing rod (14) is rotatably connected to a roller (15); the middle part of the mounting rod (1) is fixedly connected to a limiting frame (16); a plurality of fixing rods (14) are slidably connected to the middle part of the limiting frame (16); the inside of the mounting rod (1) is rotatably connected to a connecting shaft (17); the bottom end of the connecting shaft (17) is fixedly connected to a grinding block (18); the top of the mounting rod (1) is fixedly connected to a motor (19); the output end of the motor (19) is fixedly connected to the top end of the connecting shaft (17).

2. A steel beam weld grinding device according to claim 1, characterized in that: A plurality of slots (2) are provided in the middle of the mounting rod (1); a handle (21) is rotatably connected to the middle of the mounting rod (1); a slide plate (22) is slidably connected to the middle of the handle (21); a clamping plate (23) is fixedly connected to the side of the slide plate (22) facing the slots (2); a pair of springs (24) are fixedly connected to the side of the slide plate (22) away from the slots (2); and the other end of the spring (24) is fixedly connected to the middle of the handle (21).

3. A steel beam weld grinding device according to claim 2, characterized in that: The middle parts of the plurality of fixed rods (14) are rotatably connected to a first gear (3); the bottom of the first gear (3) is fixedly connected to a plurality of bristles (31); the plurality of bristles (31) are arranged in a circular array to surround the roller (15) inside.

4. A steel beam weld grinding device according to claim 3, characterized in that: A pair of fan blades (4) is fixedly connected to the middle of the connecting shaft (17); the pair of fan blades (4) are arranged in a circular array with the connecting shaft (17) as the axis.

5. A steel beam weld grinding device according to claim 4, characterized in that: A protective tube (5) is fixedly connected to the middle of the fan blade (4); the protective tube (5) surrounds a pair of fan blades (4) and is arranged inside.

6. A steel beam weld grinding device according to claim 5, characterized in that: A second gear (6) is fixedly connected to the middle of the protective tube (5); the second gear (6) is meshed with the plurality of first gears (3).

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