Electric welding slag knocking hammer

Abstract

The utility model relates to the technical field of welding matching tools, and particularly discloses an electric welding slag knocking hammer which is characterized in that a hammer cavity is upwards formed in the lower end of a hammer head, a knocking head is arranged at the upper end of the hammer head, a sliding seat capable of sliding up and down is arranged in the hammer cavity, and a steel wire bundle extending downwards is fixed on the lower side of the sliding seat; the lower end of the steel wire bundle extends out of the lower part of the hammer head to form a scraping head; a shaft rod used for adjusting the vertical position of the sliding base is arranged on the hammer head. The electric welding slag knocking hammer has the functions of an existing slag knocking hammer, meanwhile, the functions of sweeping away chippings and scraping and removing spot-shaped residual welding slag are integrated, and in the welding slag removing work, the electric welding slag knocking hammer is very convenient to use, efficient and convenient to use; when the welding piece is a knocked variable workpiece, the scraping head can be used for replacing the knocking head to break the welding slag, so that the workpiece is prevented from being deformed; the electric welding slag knocking hammer is ingenious and reasonable in structure, small and compact, convenient and fast to use, high in practicability, easy to implement, long in service life, stable in work and wide in application prospect.

Description

Technical Field

[0001] The utility model relates to the technical field of welding matching tools, in particular to an electric welding slag hammer used for removing welding slag after welding is completed. Background Art

[0002] When welding metal parts with welding rods, a layer of hard and brittle material, namely welding slag, will be formed on the weld. After welding, the welding slag needs to be cleaned to ensure the subsequent coating effect and effectively avoid secondary corrosion at the weld in the later stage. At present, the slag hammer is the most commonly used welding slag removal tool. Although it has the advantages of structure and convenient use, it also has certain shortcomings in actual use. On the one hand, most of the welding slag can be detached by knocking the welding slag, but spot-like welding slag will still remain on the surface of the weld. It is difficult to remove it efficiently with a slag hammer. It is usually necessary to use additional tools such as wire brushes and scrapers for further cleaning, which is quite troublesome. On the other hand, the hammer head of the slag hammer is very hard, and the process of knocking the welding slag with the hammer head can easily cause deformation of the workpiece, especially in the welding operation of pipe fittings. This defect is particularly significant. Utility Model Content

[0003] In order to overcome at least one of the above-mentioned deficiencies in the prior art, the utility model provides an electric welding slag knocking hammer which is different from the existing design. The electric welding slag knocking hammer retains the striking head of the previous structure at one end of the hammer head, while a scraping head composed of a bundle of steel wires is arranged at the other end of the hammer head. The striking head can be used to break up the welding slag, and the scraping head can be used to sweep away the welding slag debris on the surface of the weld, and the spot-like welding slag remaining on the surface of the weld can be further scraped and removed; at the same time, for some workpieces that are easily deformed by knocking, the scraping head end can be used for knocking when removing the welding slag, so as to effectively avoid deformation of the workpiece.

[0004] To achieve the above technical objectives, the utility model adopts the following technical solutions: an electric welding slag hammer, comprising a hammer head and a hammer handle fixedly connected, characterized in that: a hammer cavity is opened upward from the lower end of the hammer head, and a striking head extending upward and a through hole communicating with the hammer cavity is provided at the upper end of the hammer head; a shaft rod that can only rotate is defined in the through hole, the upper end of the shaft rod is located on the upper side of the hammer head and is fixed with a screwing portion, and the middle and lower parts of the shaft rod are located in the hammer cavity and are provided with threads; a sliding seat that can slide up and down is provided in the hammer cavity, a screw hole matching the shaft rod is opened downward at the upper end of the sliding seat, and a steel wire bundle extending downward is fixed to the lower side of the sliding seat; the steel wire bundle is composed of a plurality of steel wires extending up and down and fixedly connected to the sliding seat at the upper end, and the steel wires in the steel wire bundle are bound by the hammer cavity and tightly arranged and bundled together; the lower end of the steel wire bundle extends to the lower outside of the hammer head to form a scraping head.

[0005] The usage and working principle of this electric welding slag hammer are as follows:

[0006] When using this electric welding slag hammer to remove welding slag, first use the striking head to break up the welding slag, and then use the scraping head to sweep away the welding slag debris on the weld surface. If there are still spot-like welding slag that has not been detached on the weld surface, the scraping head can be used to scrape and remove these welding slags that have not fallen off during the process of sweeping away the debris;

[0007] When the welding workpiece is a thin-walled pipe or other workpiece that is easily deformed, the scraper head can be used to knock the welding slag. The scraper head has a certain elasticity and flexibility based on its structural characteristics, and it is not easy to cause the workpiece to deform during the process of breaking the welding slag.

[0008] Since the scraping head is actually the lower part of the wire bundle, the wire in the scraping head will inevitably wear, break or bend as it is used, affecting normal use. At this time, the damaged scraping head can be cut off along the lower end of the hammer head using a cutting tool, and the slide can be driven downward by rotating the shaft rod to move the lower end of the wire bundle to a suitable position under the hammer head, thereby forming a new scraping head, which can continue to work stably.

[0009] Compared with the prior art, the electric welding slag hammer in the utility model has the following technical effects:

[0010] This electric welding slag hammer has the functions of the previous slag hammers, and at the same time integrates the functions of sweeping debris and scraping and removing spot-like residual welding slag. It is very convenient, efficient and convenient to use in welding slag removal work; when the welding workpiece is a workpiece that is easy to deform, the scraping head can be used instead of the knocking head to break the welding slag, which is safer to operate and avoids deformation of the workpiece; when the scraping head cannot meet the work needs due to wear and deformation, the damaged scraping head can be cut off, and the steel wire bundle can be driven down to form a new scraping head, extending the working life of the electric welding slag hammer. At the same time, the extension length of the scraping head can be adjusted according to needs to achieve the best use effect. The structure of this electric welding slag hammer is exquisite and reasonable, compact, convenient and quick to use, highly practical, easy to implement, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the external structure of the electric welding slag hammer in Example 1.

[0012] Figure 2 This is a schematic diagram of the parts decomposition of the electric welding slag hammer in Example 1.

[0013] Figure 3 This is a schematic diagram of the structure of the slide seat and the wire bundle in Example 1.

[0014] Figure 4 It is a schematic diagram of the structure of the hammer head after partial cutaway in Example 1.

[0015] Figure 5 This is a schematic diagram of the state after the damaged scraping head is cut off in Example 1.

[0016] Figure 6 This is a schematic diagram of the state when the shaft rod is rotated to adjust the position of the slide seat and the wire bundle in Example 1.

[0017] Figure 7 It is a schematic diagram of the structure of the electric welding slag hammer after partial sectioning in Example 2.

[0018] In the figure, 1, hammer head, 2, striking head, 3, screwing part, 4, hammer handle, 5, scraping head, 6, sliding seat, 7, shaft rod, 8, limit step, 9, through hole, 10, screw hole, 11, wire bundle, 12, hammer cavity, 13, spring hole, 14, push spring. DETAILED DESCRIPTION

[0019] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0020] Example 1

[0021] Attached Figure 1-4 The specific implementation structure of the electric welding slag hammer in this embodiment is shown; see the attached Figure 1-4 As shown, it includes a hammer head 1 and a hammer handle 4 fixed to the rear side of the hammer head 1; the hammer head 1 is provided with a hammer cavity 12 from the lower end upward, and the upper end of the hammer head 1 is provided with a striking head 2 extending upward and a through hole 9 communicating with the hammer cavity 12; the central axis of the through hole 9 extends along the direction and the through hole 9 is communicated with the hammer cavity 12, and a shaft rod 7 that cannot move up and down but can rotate is defined in the through hole 9; the upper end of the shaft rod 7 is located on the upper side of the hammer head 1 and is fixed with a screwing part 3, the middle and lower part of the shaft rod 7 is located in the hammer cavity 12 and is provided with a thread; a slide seat 6 that can slide up and down is provided in the hammer cavity 12, and a screw hole 1 is provided downward at the upper end of the slide seat 6 0, the screw hole 10 is threadedly matched with the shaft rod 7. Based on the above structure, the rotating shaft rod 7 can adjust the upper and lower positions of the slide 6 in the hammer cavity 12; a steel wire bundle 11 extending downward is fixed to the lower side of the slide 6, and the steel wire bundle 11 is composed of a plurality of steel wires extending up and down and fixedly connected to the slide 6 at the upper end. The steel wires and the slide 6 can be fixedly connected by welding. The steel wires in the steel wire bundle 11 are bound by the hammer cavity 12 and are closely arranged and bundled together; the lower end of the steel wire bundle 11 extends to the lower outside of the hammer head 1 to form a scraping head 5. Based on its structural characteristics, the scraping head 5 has the functions of a conventional wire brush and also has a certain knocking function.

[0022] When using the electric welding slag hammer to remove welding slag, the striking head 2 can be used to break up the welding slag, and then the scraping head 5 can be used to sweep away the welding slag debris on the weld surface. If there are still spot-like residual welding slag on the weld surface that has not been detached, the scraping head 5 can be used to scrape and remove these welding slags that have not fallen off during the process of sweeping the debris. The operation is convenient and quick, and the welding slag removal efficiency is greatly improved.

[0023] When the welding workpiece is a thin-walled pipe or other workpiece that is easily deformed, the scraper head 5 can be used to knock the welding slag. The scraper head 5 has a certain elasticity and flexibility based on its structural characteristics, and it is not easy to cause deformation of the workpiece during the process of breaking the welding slag.

[0024] In the above structure adopted by the electric welding slag hammer, the striking head 2, the hammer head 1 and the hammer handle 4 are all parts that are not easy to be damaged and have a long working life, but the scraping head 5 is not like this. Since the scraping head 5 is actually composed of steel wire, the steel wire in the scraping head 5 will inevitably wear, break or bend as it is used, which is equivalent to a shorter working life of other parts. In order to deal with this mismatch in working life, the utility model provides corresponding countermeasures based on structural optimization. Figure 5 , 6 As shown, in actual use engineering, when the scraper head 5 is unable to be used normally due to the above-mentioned wear, deformation, etc., a cutting tool can be used to cut off the damaged scraper head 5 along the lower end of the hammer head 1, and then the lower end of the wire bundle 11 can be further trimmed, and finally the slide 6 is driven downward by rotating the shaft 7 to move the lower end of the wire bundle 11 to a suitable position below the hammer head 1, so that a new scraper head 5 can be formed, which can continue to be used stably; at the same time, in the structure adopted by the electric welding slag hammer, the slide 6 and the wire bundle 11 can be easily removed from the hammer head 1, and the structure of the slide 6 and the wire bundle 11 is very simple and the manufacturing cost is low, so the slide 6 and the wire bundle 11 can be configured as consumables. When the length of the wire bundle 11 cannot meet the work requirements, a new slide 6 and the wire bundle 11 can be replaced.

[0025] In the electric welding slag hammer, the hammer head 1, hammer handle 4 and striking head 2 are an integrated structure, which is integrally formed of metal material, thereby being more convenient to implement.

[0026] In the present electric welding slag hammer, Figure 1 , 4 As shown, the striking head 2 is located at the front side of the screwing part 3. This arrangement conforms to the mechanical design and is more convenient for applying force during use.

[0027] In the electric welding slag hammer described above, the screwing portion 3 is intended to drive the shaft 7 to rotate so as to adjust the upper and lower positions of the slide 6 and the wire bundle 11. Based on this setting purpose, the screwing portion 3 can be an external hexagonal bolt head or an internal hexagonal bolt head that can cooperate with a wrench, or it can be a straight groove or a cross groove that can cooperate with a screwdriver.

[0028] See attached Figure 2 , 4 As shown, in the electric welding slag hammer, the shaft rod 7 passes through the through hole 9 and can rotate but cannot move up and down. Based on this design requirement, a limiting step 8 is fixed on the shaft rod 7, and the limiting step 8 is located at the lower side of the through hole 9. The shaft rod 7 is limited by the screwing part 3 and the limiting step 8 and cannot move up and down.

[0029] Example 2

[0030] Based on the working mode of the electric welding slag hammer, it is frequently subjected to vibration during use. In the utility model, the slide 6 and the wire bundle 11 are not connected to the hammer body in a fixed connection manner, but an adjustable combined structure is adopted. In the specific implementation, the matching accuracy and tightness between the movable parts should be controlled to achieve the technical requirements of stable matching, so as to prevent the slide 6 and the wire bundle 11 from moving up and down due to vibration during use without active human adjustment.

[0031] At the same time, in order to better achieve the above technical requirements, this embodiment has further improvements on the technical features disclosed in Example 1:

[0032] See also Figure 7 As shown, a spring hole 13 is downwardly opened at the upper end of the slide 6, and a push-up spring 14 is arranged in the spring hole 13. The two ends of the push-up spring 14 are respectively against the slide 6 and the hammer head 1; based on the thrust of the push-up spring 14, a certain force is always maintained between the slide 6, the shaft 7 and the hammer head 1, which is equivalent to tension, and can effectively prevent the above-mentioned mating parts from loosening and improve working stability.

[0033] The above is a specific description and implementation method of the utility model. Certain changes can be made in combination with the prior art within the scope of the claims, and such changes do not depart from the scope of protection of this patent.

[0034] The various technical features disclosed in this specification and the drawings can be used alone or in combination with the prior art without affecting the beneficial effects of the technology. The implementation method disclosed in the specification is only a preferred embodiment, not all implementation methods, and therefore does not constitute a limitation on the scope of protection claimed in this application.

Claims

1. An electric welding slag hammer, comprising a hammer head and a hammer handle fixedly connected, characterized in that: The hammer head is provided with a hammer cavity upward from the lower end, and the upper end of the hammer head is provided with a striking head extending upward and a through hole communicating with the hammer cavity; a shaft rod that can only rotate is defined in the through hole, the upper end of the shaft rod is located on the upper side of the hammer head and is fixed with a screwing part, and the middle and lower parts of the shaft rod are located in the hammer cavity and are provided with threads; a sliding seat that can slide up and down is provided in the hammer cavity, a screw hole matching the shaft rod is downwardly provided at the upper end of the sliding seat, and a steel wire bundle extending downward is fixed to the lower side of the sliding seat; the steel wire bundle is composed of a plurality of steel wires extending up and down and fixedly connected to the sliding seat at the upper end, and the steel wires in the steel wire bundle are bound by the hammer cavity and are closely arranged and bundled together; the lower end of the steel wire bundle extends to the lower outside of the hammer head to form a scraping head.

2. The electric welding slag hammer according to claim 1, characterized in that: The steel wire and the sliding seat are fixedly connected by welding.

3. The electric welding slag hammer according to claim 1, characterized in that: The hammer head, hammer handle and striking head are an integrated structure and are integrally formed of metal material.

4. The electric welding slag hammer according to claim 1, characterized in that: The striking head is located at the front side of the screwing part.

5. The electric welding slag hammer according to claim 1, characterized in that: The screwing portion is an external hexagonal bolt head or an internal hexagonal bolt head that can be matched with a wrench.

6. The electric welding slag hammer according to claim 1, characterized in that: The screwing portion is a straight groove or a cross groove that can cooperate with a screwdriver.

7. The electric welding slag hammer according to claim 1, characterized in that: A limiting step is fixed on the shaft rod, and the limiting step is located at the lower side of the through hole. The shaft rod is limited by the screwing part and the limiting step and cannot move up and down.

8. The electric welding slag hammer according to claim 1, characterized in that: A spring hole is downwardly provided at the upper end of the slide seat, and a push-up spring is arranged in the spring hole. Two ends of the push-up spring respectively push against the slide seat and the hammer head.

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