Steel structure welding point polishing device

Abstract

The utility model relates to the technical field of polishing equipment, in particular to a steel structure welding point polishing device which comprises a hollow cylindrical outer shell, a power mechanism and an air injection mechanism are installed at the end of the outer shell, and a spherical replaceable polishing head is installed at the end of the power mechanism. According to the utility model, the hollow cylindrical outer shell is arranged to provide installation space and protection for the internal power mechanism and the air injection mechanism; a grinding motor in the power mechanism drives a rotating shaft to rotate, so that a replaceable grinding head connected with the rotating shaft through an inserting column and a locking bolt rotates, and the welding point of the steel structure is ground; an inflator pump in the air injection mechanism generates air, and the air is blown out through an air conveying pipe and an air injection pipe head, so that the ground crushed materials can be blown away in time, and a working area is kept clean; the handheld rod vertically connected to the bottom of the outer wall of the outer shell facilitates handheld operation of operators, and the device is compact in structure, convenient to operate, good in grinding effect and capable of keeping the working environment clean and tidy.

Description

Technical Field

[0001] This utility model relates to the field of grinding equipment technology, specifically a grinding device for welded points of steel structures. Background Technology

[0002] In modern construction and manufacturing, steel structures are widely used due to their high strength, good toughness, and convenient construction. The quality of steel structure connections plays a crucial role in the overall stability and safety of the structure, and welding, as a commonly used connection method, makes the treatment of weld points particularly important. Grinding is a key process in the treatment of steel structure weld points, and its quality directly affects the effectiveness of subsequent painting, corrosion protection, and other processes, as well as the durability of the structure. Existing grinding equipment often lacks an effective debris removal mechanism, affecting subsequent weld point inspection and treatment processes. Furthermore, the inconvenience of replacing grinding heads in existing equipment increases equipment maintenance time and costs. Utility Model Content

[0003] The purpose of this utility model is to provide a steel structure welding point grinding device to solve the problems mentioned in the background art, such as the lack of debris removal and the inconvenience of replacing the grinding head in existing steel structure grinding equipment.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A steel structure welding point grinding device includes a hollow cylindrical outer shell, a power mechanism and an air jet mechanism for blowing away grinding debris are installed at the end of the outer shell, a spherical replaceable grinding head is installed at the end of the power mechanism, and a hand handle is vertically connected to the bottom of the outer wall of the outer shell.

[0006] The power mechanism includes a grinding motor housed in the housing. The end of the rotating shaft of the grinding motor is coaxially provided with a plug hole. The outer wall of the replaceable grinding head is equipped with a plug-in post that is plugged into the end of the rotating shaft. The plug-in post is fixedly installed on the end of the rotating shaft by a locking bolt.

[0007] The jetting mechanism includes an air pump housed within the outer casing, an air supply pipe installed at the outlet end of the air pump, and a jet nozzle installed at the end of the air supply pipe.

[0008] Preferably, a mesh cover is installed at the end of the outer casing away from the replaceable grinding head.

[0009] Preferably, the outer edge of the mesh cover is connected to the outer shell by at least three sets of evenly spaced fixing bolts.

[0010] Preferably, the outer wall of the handheld handle is fitted with an anti-slip sleeve.

[0011] Preferably, the anti-slip sleeve is made of silicone and has a thickness of 2-5mm.

[0012] Preferably, the outer wall of the handheld handle is also equipped with two sets of control switches for controlling the grinding motor and the air pump, respectively.

[0013] Preferably, the end of the jet nozzle is fitted with an external threaded connector, which is threadedly connected to the end of the gas delivery pipe.

[0014] Compared with existing technologies, the beneficial effects of this utility model are:

[0015] 1. In this steel structure welding point grinding device, the hollow cylindrical outer shell provides installation space and protection for the internal power mechanism and air jet mechanism. The grinding motor in the power mechanism drives the rotating shaft to rotate, which in turn causes the replaceable grinding head, connected to the rotating shaft via plug-in pins and locking bolts, to rotate, thereby achieving the grinding of the steel structure welding points. The air jet mechanism generates gas through the air supply pipe and air jet head, which can promptly blow away the grinding debris and keep the working area clean. The hand handle vertically connected to the bottom of the outer wall of the outer shell facilitates hand operation by the operator. This makes the steel structure welding point grinding device compact, easy to operate, with good grinding effect and a clean working environment.

[0016] 2. In this steel structure welding point grinding device, a mesh cover is installed at the end of the outer shell away from the replaceable grinding head. The outer edge of the mesh cover is connected to the outer shell by at least three sets of evenly spaced fixing bolts. The mesh cover can prevent debris from entering the interior of the outer shell and protect the power mechanism and jet mechanism. At the same time, the fixing bolts facilitate the disassembly and installation of the mesh cover, making the maintenance and repair of the internal structure more convenient in the later stage.

[0017] 3. In this steel structure welding point grinding device, the end of the jet nozzle is equipped with an external threaded connector, which is threaded to the end of the air supply pipe. The external threaded connector and the threaded connection method facilitate the installation and disassembly of the jet nozzle and the air supply pipe. When the jet nozzle is damaged or needs to be replaced with a different type of jet nozzle, the operation can be carried out quickly, making the maintenance and adjustment of the jet mechanism more convenient. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are explained in detail together with the embodiments of the present invention, but do not constitute a limitation thereof.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2This is a schematic diagram of the cross-sectional structure of the present invention;

[0021] Figure 3 This is a cross-sectional exploded view of the present invention;

[0022] 10. Outer shell; 11. Mesh cover; 12. Fixing bolts;

[0023] 20. Power mechanism; 21. Grinding motor; 22. Shaft; 23. Locking bolt;

[0024] 30. Replaceable grinding head; 31. Insertion pin;

[0025] 40. Handheld lever; 41. Anti-slip sleeve; 42. Control switch;

[0026] 50. Jet mechanism; 51. Air pump; 52. Air supply pipe; 53. Jet nozzle; 54. External threaded connector. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be understood that the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] A steel structure weld point grinding device, such as Figures 1-3As shown, the device includes a hollow cylindrical outer shell 10. A power mechanism 20 and an air jet mechanism 50 for blowing away grinding debris are installed at the ends of the outer shell 10. A replaceable, spherical grinding head 30 is installed at the end of the power mechanism 20. A hand handle 40 is vertically connected to the bottom of the outer wall of the outer shell 10. The power mechanism 20 includes a grinding motor 21 housed within the outer shell 10. A coaxial insertion hole is provided at the end of the rotating shaft 22 of the grinding motor 21. An insertion post 31, which engages with the end of the rotating shaft 22, is installed on the outer wall of the replaceable grinding head 30. The insertion post 31 is fixedly installed to the end of the rotating shaft 22 by a locking bolt 23. The air jet mechanism 50 includes an air pump 51 housed within the outer shell 10. An air supply pipe 52 is installed at the outlet end of the air pump 51. The device is equipped with an air jet nozzle 53. The hollow cylindrical outer shell 10 provides installation space and protection for the internal power mechanism 20 and air jet mechanism 50. The grinding motor 21 in the power mechanism 20 drives the rotating shaft 22 to rotate, which in turn causes the replaceable grinding head 30, which is connected to the rotating shaft 22 through the plug-in post 31 and locking bolt 23, to rotate, thereby achieving grinding of the welded points of the steel structure. The air pump 51 in the air jet mechanism 50 generates gas, which is blown out through the air supply pipe 52 and the air jet nozzle 53, which can promptly blow away the grinding debris and keep the working area clean. The hand handle 40, which is vertically connected to the bottom of the outer wall of the outer shell 10, is convenient for the operator to hold and operate. This makes the steel structure welded point grinding device compact, easy to operate, and provides good grinding effect while maintaining a clean working environment.

[0030] Furthermore, a mesh cover 11 is installed at one end of the outer casing 10 away from the replaceable grinding head 30. The outer edge of the mesh cover 11 is connected to the outer casing 10 by at least three sets of evenly spaced fixing bolts 12. The mesh cover 11 can prevent debris from entering the interior of the outer casing 10, protecting the power mechanism 20 and the jet mechanism 50. At the same time, the fixing bolts 12 facilitate the disassembly and installation of the mesh cover 11, making the maintenance and repair of the internal structure more convenient in the future.

[0031] Specifically, an anti-slip sleeve 41 is fitted on the outer wall of the handheld handle 40. The anti-slip sleeve 41 is made of silicone and has a thickness of 2-5mm. By using the anti-slip properties of silicone, the anti-slip sleeve 41 can increase the friction when the operator holds the handle, making it less likely to slip during the use of the grinding device and improving the stability and safety of the operation.

[0032] The outer wall of the handheld lever 40 is also equipped with two sets of control switches 42 for controlling the grinding motor 21 and the air pump 51 respectively. With the control switches 42, the operator can easily and quickly control the start and stop of the grinding motor 21 and the air pump 51 while holding the lever, without complicated operating procedures, making the operation more flexible and improving work efficiency.

[0033] In addition, an external threaded connector 54 is installed at the end of the jet nozzle 53. The external threaded connector 54 is threadedly connected to the end of the air supply pipe 52. The external threaded connector 54 and the threaded connection method facilitate the installation and disassembly of the jet nozzle 53 and the air supply pipe 52. When the jet nozzle 53 is damaged or needs to be replaced with a different type of jet nozzle, the operation can be carried out quickly, making the maintenance and adjustment of the jet mechanism 50 more convenient.

[0034] Working principle of this steel structure welding point grinding device:

[0035] First, check whether the connections of each component are secure. Confirm that the mesh cover 11 is tightly connected to the outer shell 10 by the fixing bolt 12. The plug 31 of the replaceable grinding head 30 has been firmly installed at the end of the shaft 22 of the grinding motor 21 in the power mechanism 20 by the locking bolt 23. The external threaded connector 54 of the jet nozzle 53 is tightened to the air supply pipe 52.

[0036] Then, the operator holds the handle 40 with the anti-slip sleeve 41 and aligns the replaceable grinding head 30 with the steel structure welding point;

[0037] Next, press the control switch 42 on the hand lever 40 to control the grinding motor 21, start the grinding motor 21, and the rotating shaft 22 drives the replaceable grinding head 30 to rotate, and start the grinding operation on the welding point.

[0038] During the grinding process, if it is necessary to blow away the grinding debris, press the control switch 42 that controls the air pump 51. The air pump 51 will work, and the gas will be sprayed out from the jet nozzle 53 through the air supply pipe 52 to clean the working area.

[0039] After grinding is completed, turn off the control switches 42 of the grinding motor 21 and the air pump 51 in sequence. If replacement is required, the grinding head 30 can be replaced or the internal structure can be maintained. Unscrew the fixing bolts 12, remove the mesh cover 11, and then unscrew the locking bolts 23. Replace the grinding head or perform internal maintenance. After completion, reinstall all parts as they were originally.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A steel structure welding point grinding device, comprising a hollow cylindrical outer shell (10), characterized in that: The end of the outer shell (10) is equipped with a power mechanism (20) and an air jet mechanism (50) for blowing away grinding debris. The end of the power mechanism (20) is equipped with a spherical replaceable grinding head (30). A hand handle (40) is vertically connected to the bottom of the outer wall of the outer shell (10). The power mechanism (20) includes a grinding motor (21) disposed inside the outer casing (10). The end of the rotating shaft (22) of the grinding motor (21) is coaxially provided with a plug hole. The outer wall of the replaceable grinding head (30) is equipped with a plug post (31) that is plugged into the end of the rotating shaft (22). The plug post (31) is fixedly installed on the end of the rotating shaft (22) by a locking bolt (23). The jetting mechanism (50) includes an air pump (51) disposed in the outer casing (10), an air supply pipe (52) is installed at the outlet end of the air pump (51), and a jet nozzle (53) is installed at the end of the air supply pipe (52).

2. The steel structure welding point grinding device according to claim 1, characterized in that: A mesh cover (11) is installed at the end of the outer casing (10) away from the replaceable grinding head (30).

3. The steel structure welding point grinding device according to claim 2, characterized in that: The outer edge of the mesh cover (11) is connected to the outer shell (10) by at least three sets of evenly spaced fixing bolts (12).

4. The steel structure welding point grinding device according to claim 1, characterized in that: The outer wall of the handheld lever (40) is fitted with an anti-slip sleeve (41).

5. The steel structure weld point grinding device according to claim 4, characterized in that: The anti-slip sleeve (41) is made of silicone and has a thickness of 2-5mm.

6. The steel structure welding point grinding device according to claim 1, characterized in that: Two sets of control switches (42) are also installed on the outer wall of the handheld lever (40) for controlling the grinding motor (21) and the air pump (51), respectively.

7. The steel structure welding point grinding device according to claim 1, characterized in that: The end of the jet nozzle (53) is fitted with an external threaded connector (54), which is threadedly connected to the end of the gas delivery pipe (52).

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