Air hammer

Abstract

The utility model belongs to the technical field of air hammers, and particularly relates to an air hammer which comprises a base, an air hammer body is fixedly arranged on the top face of the base, a hammer head is movably arranged on the air hammer body, and the air hammer is characterized in that a cylindrical cover is fixedly arranged on the top face of the base, a through hole is formed in the top face of the cylindrical cover, and the hammer head penetrates through the through hole. An upper rotating ring and a lower rotating ring are rotationally arranged on the outer wall of the cylindrical cover, a cover opening is formed in the front face of the cylindrical cover and located between the upper rotating ring and the lower rotating ring, an arc-shaped door is fixedly arranged between the upper rotating ring and the lower rotating ring, an operation opening is formed in the arc-shaped door, the inner bottom face of the cylindrical cover is an inclined face, and the upper rotating ring and the lower rotating ring are oppositely arranged. A machining table is fixedly arranged on the inclined face. Metal can be placed on the machining table through the operation opening, the metal can be hammered through the hammer head, and metal scraps can be prevented from splashing to a worker to scald the worker through the arrangement of the cylindrical cover and the arc-shaped door.

Description

Technical Field

[0001] This utility model belongs to the field of air hammer technology, and in particular relates to an air hammer. Background Technology

[0002] An air hammer is a type of free forging machine. It uses a compressed air cylinder to compress air, which is then fed into the working cylinder through a distribution valve. This pushes the piston and hammer head to move up and down to perform a hammering action. It is flexible in operation and widely used in the production of small and medium-sized forgings.

[0003] Currently, when air hammers are used in forging, metal shavings that fall off the surface of the forging workpiece at high speed are thrown out when the workpiece is hammered at high temperature. These hot shavings may cause burns to the operator. Therefore, there is a need for an air hammer that can effectively control the flying of shavings. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides an air hammer that solves the technical problem that when a high-temperature forging is hammered during forging, the metal shavings that fall off the surface of the forging will fly at high speed and may cause burns to the operator.

[0005] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0006] An air hammer includes a base, an air hammer body fixedly mounted on the top surface of the base, a hammer head movably mounted on the air hammer body, a cylindrical cover fixedly mounted on the top surface of the base, a through hole on the top surface of the cylindrical cover, the hammer head passing through the through hole, an upper rotating ring and a lower rotating ring rotatably mounted on the outer wall of the cylindrical cover, a cover opening on the front of the cylindrical cover located between the upper and lower rotating rings, an arc-shaped door fixedly mounted between the upper and lower rotating rings, an operating opening on the arc-shaped door, an inclined surface on the inner bottom surface of the cylindrical cover, a processing table fixedly mounted on the inclined surface, a driving structure on the top surface of the base capable of driving the arc-shaped door to rotate, a positioning structure on the driving structure capable of positioning the driving structure, and a waste discharge structure at the bottom of the cylindrical cover for discharging waste.

[0007] Furthermore, the drive structure includes a column, which is fixedly mounted on the top surface of the base. A main shaft is rotatably mounted inside the column. A driving bevel gear is fixedly mounted at one end of the main shaft. A driven bevel gear is fixedly mounted on the outer wall of the lower rotating ring. The driving bevel gear meshes with the driven bevel gear.

[0008] Furthermore, the positioning structure includes a positioning gear, which is fixedly mounted on the main shaft. A guide rail is fixedly mounted on one side surface of the column, and a slider is slidably mounted on the guide rail. A rack is fixedly mounted on the bottom surface of the slider, and the rack can mesh with the positioning gear.

[0009] Further, the upper end of the column is fixed with a horizontal plate, a threaded rod is threadedly connected in the horizontal plate, the lower end of the threaded rod is rotationally connected with the sliding block, and the threaded rod has self-locking property.

[0010] Further, the waste material discharging structure comprises a waste material port which is fixed on the outer wall of the cylindrical cover and communicates with the lower part of the inclined surface.

[0011] Further, the arc-shaped door matches the cover port.

[0012] Further, the arc-shaped door is provided with a protective window.

[0013] Further, the other end of the main shaft is fixed with a rotating plate, and a crank handle is rotationally arranged on one side surface of the rotating plate.

[0014] Further, the upper end of the threaded rod is fixed with a crank handle.

[0015] The utility model discloses the beneficial effect is:

[0016] 1, the staff can place metal on the processing table through the operation port, can hammer the metal through the hammer head, can prevent the metal scrap from splashing to the staff and causing the staff scald through being equipped with the cylindrical cover and the arc-shaped door.

[0017] 2, the driven bevel gear rotation can drive the lower rotating ring rotation, the arc-shaped door is rotated a certain angle through the lower rotating ring rotation, thereby opening the arc-shaped door, the rack and the positioning gear are engaged to position the positioning gear, and the arc-shaped door is positioned through the positioning of the positioning gear.

[0018] 3, when needing to clean the inside of the cylindrical cover, the staff first opens the arc-shaped door, then cleans the inside of the cylindrical cover with a cleaning tool, and the waste material can slide to the waste material port through the inclined surface and fall into the waste material box through the waste material port. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the three-dimensional schematic view when the arc-shaped door of the utility model is closed.

[0020] Figure 2 It is the three-dimensional schematic view when the arc-shaped door of the utility model is opened.

[0021] Figure 3 It is Figure 1 The enlarged schematic view of A in the middle.

[0022] In the figure: 1, base; 2, operation port; 3, protective window; 4, arc-shaped door; 5, upper swivel ring; 6, hammer head; 7, air hammer main body; 8, lower swivel ring; 9, driven bevel gear; 10, waste port; 11, waste box; 12, stand column; 13, cover port; 14, cylindrical cover; 15, processing table; 16, inclined surface; 17, swivel handle; 18, threaded rod; 19, guide rail; 20, sliding block; 21, rack; 22, positioning gear; 23, main shaft; 24, rotating plate; 25, rocking handle; 26, cross plate; 27, through hole; 28, driving bevel gear. DETAILED DESCRIPTION

[0023] In order to better explain the utility model, so as to facilitate understanding, the following will be combined with the specific embodiments, and the utility model is described in detail.

[0024] As Figures 1-3 shown, the utility model provides an air hammer, including base 1, base 1 top surface is fixedly provided with air hammer main body 7, air hammer main body 7 is movably provided with hammer head 6, base 1 top surface is fixedly provided with cylindrical cover 14, cylindrical cover 14 top surface is provided with through hole 27, hammer head 6 penetrates through through hole 27, cylindrical cover 14 outer wall is rotatably provided with upper swivel ring 5 and lower swivel ring 8, cylindrical cover 14 front and between upper swivel ring 5 and lower swivel ring 8 is provided with cover port 13, upper swivel ring 5 and lower swivel ring 8 are fixedly provided with arc-shaped door 4, arc-shaped door 4 is provided with operation port 2, the inner bottom surface of cylindrical cover 14 is inclined surface 16, inclined surface 16 is fixedly provided with processing table 15, the top surface of base 1 is provided with drive structure, drive structure can drive arc-shaped door 4 to rotate, drive structure is provided with positioning structure, positioning structure can position drive structure, the bottom of cylindrical cover 14 is provided with waste removal structure, and waste removal structure is used for the discharge of waste; drive structure includes stand column 12, stand column 12 is fixedly arranged on the top surface of base 1, main shaft 23 is rotatably arranged in stand column 12, one end of main shaft 23 is fixedly provided with driving bevel gear 28, the outer wall of lower swivel ring 8 is fixedly provided with driven bevel gear 9, and driving bevel gear 28 is engaged with driven bevel gear 9; positioning structure includes positioning gear 22, positioning gear 22 is fixedly arranged on main shaft 23, one side surface of stand column 12 is fixedly provided with guide rail 19, sliding block 20 is slidably arranged on guide rail 19, the bottom surface of sliding block 20 is fixedly provided with rack 21, and rack 21 can be engaged with positioning gear 22; the upper end of stand column 12 is fixedly provided with cross plate 26, threaded rod 18 is screw-connected in cross plate 26, the lower end of threaded rod 18 is rotatably connected with sliding block 20, and threaded rod 18 has self-locking property; waste removal structure includes waste port 10, and waste port 10 is fixedly arranged on the outer wall of cylindrical cover 14 and is communicated with the low place of inclined surface 16; arc-shaped door 4 is matched with cover port 13; arc-shaped door 4 is provided with protective window 3; the other end of main shaft 23 is fixedly provided with rotating plate 24, and rocking handle 25 is rotatably arranged on one side surface of rotating plate 24; the upper end of threaded rod 18 is fixedly provided with swivel handle 17.

[0025] When using, the worker can put the metal on the processing table 15 by operating the mouth 2, start the air hammer main body 7, and hammer the metal through the hammer head 6, and prevent the metal scrap from splashing on the worker to cause the worker to be scalded through the arc-shaped door 4 and the cylindrical cover 14.

[0026] When the arc-shaped door 4 needs to be opened, rotating the handle 17 can drive the threaded rod 18 to rotate and move upwards, the threaded rod 18 moving upwards can drive the sliding block 20 to move upwards, the sliding block 20 moving upwards can drive the rack 21 to move away from the positioning gear 22, swinging the handle 25 can drive the main shaft 23 to rotate, the main shaft 23 rotating can drive the driving bevel gear 28 to rotate, the driving bevel gear 28 rotating can drive the driven bevel gear 9 to rotate, the driven bevel gear 9 rotating can drive the lower rotating ring 8 to rotate, the lower rotating ring 8 rotating can drive the arc-shaped door 4 to rotate by a certain angle, so as to open the arc-shaped door 4, and rotating the handle 17 in the reverse direction can drive the threaded rod 18 to rotate and move downwards, the threaded rod 18 moving downwards can drive the sliding block 20 to move downwards, the sliding block 20 moving downwards can drive the rack 21 to engage with the positioning gear 22, the rack 21 engaging with the positioning gear 22 can position the positioning gear 22, and the positioning gear 22 being positioned can position the arc-shaped door 4.

[0027] When the inside of the cylindrical cover 14 needs to be cleaned, the worker first opens the arc-shaped door 4, and then uses a cleaning tool to clean the inside of the cylindrical cover 14, the waste can be conveniently caused to slide to the waste outlet 10 through the inclined surface 16 and fall into the waste box 11 through the waste outlet 10.

[0028] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the person skilled in the art can make changes, modifications, replacements and changes to the above-mentioned embodiments, which all belong to the range of the utility model.

Claims

1. An air hammer, comprising a base (1), wherein an air hammer body (7) is fixedly disposed on the top surface of the base (1), and a hammer head (6) is movably disposed on the air hammer body (7), characterized in that, A cylindrical cover (14) is fixedly provided on the top surface of the base (1). A through hole (27) is provided on the top surface of the cylindrical cover (14). The hammer head (6) passes through the through hole (27). An upper rotating ring (5) and a lower rotating ring (8) are rotatably provided on the outer wall of the cylindrical cover (14). A cover opening (13) is provided on the front of the cylindrical cover (14) between the upper rotating ring (5) and the lower rotating ring (8). An arc-shaped door (4) is fixedly provided between the upper rotating ring (5) and the lower rotating ring (8). The arc-shaped door (4) has an operating opening (2), the inner bottom surface of the cylindrical cover (14) is a slope (16), a processing table (15) is fixed on the slope (16), the top surface of the base (1) is provided with a driving structure, the driving structure can drive the arc-shaped door (4) to rotate, the driving structure is provided with a positioning structure, the positioning structure can position the driving structure, the bottom of the cylindrical cover (14) is provided with a waste discharge structure, the waste discharge structure is used for waste discharge.

2. An air hammer according to claim 1, characterized in that, The drive structure includes a column (12), which is fixedly installed on the top surface of the base (1). A main shaft (23) is rotatably provided inside the column (12). A driving bevel gear (28) is fixedly provided at one end of the main shaft (23). A driven bevel gear (9) is fixedly provided on the outer wall of the lower rotating ring (8). The driving bevel gear (28) meshes with the driven bevel gear (9).

3. An air hammer according to claim 2, characterized in that, The positioning structure includes a positioning gear (22), which is fixedly mounted on the main shaft (23). A guide rail (19) is fixedly mounted on one side surface of the column (12). A slider (20) is slidably mounted on the guide rail (19). A rack (21) is fixedly mounted on the bottom surface of the slider (20). The rack (21) can mesh with the positioning gear (22).

4. An air hammer according to claim 3, characterized in that, The upper end of the column (12) is fixedly provided with a horizontal plate (26), and the horizontal plate (26) is internally threaded with a threaded rod (18). The lower end of the threaded rod (18) is rotatably connected to the slider (20), and the threaded rod (18) has self-locking properties.

5. An air hammer according to claim 1, characterized in that, The waste discharge structure includes a waste outlet (10), which is fixedly installed on the outer wall of the cylindrical cover (14) and connected to the lower part of the inclined surface (16).

6. An air hammer according to claim 1, characterized in that, The arc-shaped door (4) matches the cover opening (13).

7. An air hammer according to claim 1, characterized in that, The curved door (4) is equipped with a protective window (3).

8. An air hammer according to claim 2, characterized in that, The other end of the main shaft (23) is fixedly provided with a rotating plate (24), and a rocker handle (25) is rotatably provided on one side surface of the rotating plate (24).

9. An air hammer according to claim 4, characterized in that, The upper end of the threaded rod (18) is fixedly provided with a handle (17).

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