Broaching device for machining special-shaped structure of inner wall of pipe fitting

Abstract

The utility model discloses a broaching device for machining a special-shaped structure on the inner wall of a pipe fitting, and relates to the technical field of broaching devices, the broaching device comprises a base, an end plate is fixedly arranged at one end of the base, a plurality of brackets are fixedly arranged on the base, a central column is fixedly arranged on the end plate, a sliding block is arranged on the central column in a sliding mode, and the bracket is fixedly arranged on the sliding block. A sliding block is installed on the bracket, a pair of broaching tools I and II is fixedly arranged on the sliding block, a sliding block driving assembly is installed on the end plate, and a plurality of ejector rods are fixedly arranged on the end plate. Pipe fittings can be supported through the bracket, and it can be guaranteed that gaps can be reserved between the pipe fittings and the end plate through the ejector rods; the sliding block can be conveniently and completely moved out of the pipe fitting, the sliding block is pulled to move through the sliding block driving assembly, rectangular protrusions on the two side walls of the pipe fitting are broached through the first broaching tool and the second broaching tool, the moving track of the sliding block can be limited through the center column, and broaching precision is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of broaching devices, specifically a broaching device for processing irregular structures on the inner wall of pipe fittings. Background Technology

[0002] During the manufacturing process of pipe fittings, it is necessary to cut the irregular structures on their inner walls, such as... Figure 1 As shown, each of the four inner walls of the pipe fitting has a rectangular protrusion A of equal length. In order to improve the machining accuracy of the protrusion A, it is necessary to broach the three surfaces of the protrusion A.

[0003] However, existing equipment is insufficient for broaching irregular structures on the inner wall of this type of pipe. Therefore, providing a broaching device for processing irregular structures on the inner wall of pipe fittings is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a broaching device for processing irregular structures on the inner wall of pipe fittings, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a broaching device for processing irregular structures on the inner wall of pipe fittings, comprising a base, an end plate fixedly disposed at one end of the base, multiple brackets fixedly disposed on the base, a central column fixedly disposed on the end plate, a slider slidably disposed on the central column, a pair of broaches and a second broach fixedly disposed on the slider, a slider driving assembly installed on the end plate, and multiple push rods fixedly disposed on the end plate.

[0006] Preferably, the number of sliders is a pair, the pair of sliders are fixedly connected by a crossbeam, and the pair of sliders are respectively placed on both sides of the central column.

[0007] Preferably, the pair of pull cutters one and two are staggered along the moving direction of the slider.

[0008] Preferably, a dovetail slide rail is provided on the surface of the central column, and a dovetail groove matching the dovetail slide rail is provided on the slider.

[0009] Preferably, the slider drive assembly includes a winch and a pull rope. The winch is fixed to the end plate, and the end plate has a through hole. One end of the pull rope passes through the through hole and is wound inside the winch, and the other end of the pull rope is fixedly connected to the slider.

[0010] Preferably, the slider drive assembly includes a motor and a threaded rod. The motor is fixed on the end plate, one end of the threaded rod is connected to the power output end of the motor, and a threaded hole is provided in the slider. The threaded rod is threadedly connected to the threaded hole.

[0011] Beneficial effects

[0012] This utility model provides a broaching device for processing irregular structures on the inner wall of pipe fittings, which has the following advantages: the bracket can support the pipe fitting, the top rod can ensure that there is a gap between the pipe fitting and the end plate, so that the slider can be completely removed from the pipe fitting, the slider drive assembly pulls the slider to move, and the first broach and the second broach are used to broach the rectangular protrusions on both sides of the pipe fitting, the central column can limit the movement trajectory of the slider to ensure broaching accuracy, and by setting a pair of sliders on both sides of the central column, the force on both sides of the central column can be more even, and the central column can be prevented from bending due to excessive force on one side. Attached Figure Description

[0013] Figure 1 The three-dimensional representation of Embodiment 1 of this utility model Figure 1 ;

[0014] Figure 2 The three-dimensional representation of Embodiment 1 of this utility model Figure 2 ;

[0015] Figure 3 The three-dimensional representation of Embodiment 2 of this utility model Figure 1 ;

[0016] Figure 4 The three-dimensional representation of Embodiment 2 of this utility model Figure 2 ;

[0017] Figure 5 This is a 3D view of the slider.

[0018] In the diagram: 1. Base; 2. End plate; 3. Bracket; 4. Center column; 5. Slider; 6. Broach 1; 7. Broach 2; 8. Winch; 9. Pull rope; 10. Threaded rod; 11. Threaded hole; 12. Motor; 13. Dovetail slide rail; 14. Top rod; 15. Dovetail groove; A. Rectangular protrusion. Detailed Implementation

[0019] 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.

[0020] Example 1: Please refer to Figure 1 , Figure 2 , Figure 5This utility model provides a technical solution: a broaching device for processing irregular structures on the inner wall of pipe fittings, including a base 1, an end plate 2 fixedly mounted on one end of the base 1, multiple brackets 3 for placing pipe fittings fixedly mounted on the base 1, a central column 4 fixedly mounted on the end plate 2, and a slider 5 slidably mounted on the central column 4. The central column 4 ensures that the slider 5 moves linearly along the inner wall of the pipe fitting. A pair of broaches 6 and 7 are fixedly mounted on the slider 5, and the pair of broaches 6 and 7 are used to broach the three end faces of the rectangular protrusion A. A slider 5 driving assembly is installed on the end plate 2, and multiple push rods 14 are fixedly mounted on the end plate 2 to leave a gap between the pipe fitting and the end plate 2, so that the slider 5 can be completely removed from the pipe fitting. The quantity is 5, which is a pair of sliders 5. The pair of sliders 5 are fixedly connected by a crossbeam. The pair of sliders 5 are placed on both sides of the central column 4 to make the force on both sides of the central column 4 more even and to prevent the central column 4 from bending due to excessive force on one side. The pair of pull cutters 1 6 and pull cutter 2 7 are staggered back and forth along the moving direction of the sliders 5 to facilitate chip removal. The surface of the central column 4 is provided with a dovetail slide rail 13. The sliders 5 are provided with dovetail grooves 15 that match the dovetail slide rail 13 to limit the movement trajectory of the sliders 5. The slider 5 drive assembly includes a winch 8 and a pull rope 9. The winch 8 is fixed on the end plate 2. The end plate 2 is provided with a through hole. One end of the pull rope 9 passes through the through hole and is wound inside the winch 8. The other end of the pull rope 9 is fixedly connected to the slider 5. The slider 5 is moved by the winch 8 winding the pull rope 9.

[0021] In this embodiment, the pipe is placed on the bracket 3 to support it and ensure the coaxiality of the pipe with the central column 4. One end of the pipe is abutted against the top rod 14, and the slider 5 is installed on the central column 4. The other end of the pull rope 9 is fixedly connected to the slider 5. The winch 8 is started to wind up the steel rope, which pulls the slider 5 to move. The first pull knife 6 and the second pull knife 7 on the slider 5 are used to broach the rectangular protrusions A on both sides of the pipe. After broaching, the pipe is rotated 90 degrees and the above steps are repeated to broach the rectangular protrusions A on the other two sides.

[0022] Example 2: Please refer to Figure 3 , Figure 4 , Figure 5This utility model provides a technical solution: a broaching device for processing irregular structures on the inner wall of pipe fittings, including a base 1, an end plate 2 fixedly mounted on one end of the base 1, multiple brackets 3 for placing pipe fittings fixedly mounted on the base 1, a central column 4 fixedly mounted on the end plate 2, and a slider 5 slidably mounted on the central column 4. The central column 4 ensures that the slider 5 moves linearly along the inner wall of the pipe fitting. A pair of broaches 6 and 7 are fixedly mounted on the slider 5, and the pair of broaches 6 and 7 are used to broach the three end faces of the rectangular protrusion A. A slider 5 driving assembly is installed on the end plate 2, and multiple push rods 14 are fixedly mounted on the end plate 2 to leave a gap between the pipe fitting and the end plate 2, so that the slider 5 can be completely removed from the pipe fitting. The number of sliders 5 is a pair. The slider 5 is fixedly connected by a crossbeam. A pair of sliders 5 are respectively placed on both sides of the central column 4 to make the force on both sides of the central column 4 more even and prevent the central column 4 from bending due to excessive force on one side. A pair of broaches 1 6 and broach 2 7 are staggered back and forth along the moving direction of the slider 5 to facilitate chip removal. A dovetail slide rail 13 is provided on the surface of the central column 4, and a dovetail groove 15 matching the dovetail slide rail 13 is opened on the slider 5 to restrict the movement trajectory of the slider 5. The slider 5 driving assembly includes a motor 12 and a threaded rod 10. The motor 12 is fixed on the end plate 2, and one end of the threaded rod 10 is connected to the power output end of the motor 12. A threaded hole 11 is opened in the slider 5, and the threaded rod 10 is threadedly connected to the threaded hole 11. The slider 5 moves along its axial direction by rotating the threaded rod 10 driven by the motor 12.

[0023] In this embodiment, the pipe is placed on the bracket 3 to support it and ensure the coaxiality of the pipe and the central column 4. One end of the pipe is abutted against the top rod 14, and the slider 5 is installed on the central column 4. The threaded hole 11 is aligned with the threaded rod 10 to make them threadedly connected. The motor 12 is started to rotate the threaded rod 10. The rotation of the threaded rod 10 drives the slider 5 to move. The broaches 6 and 7 on the slider 5 are used to broach the rectangular protrusions A on both sides of the pipe. After broaching, the pipe is rotated 90 degrees and the above steps are repeated to broach the rectangular protrusions A on the other two sides.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A broaching device for machining irregular structures on the inner wall of pipe fittings, characterized in that, Includes a base (1), one end of which is fixedly provided with an end plate (2), multiple brackets (3) are fixedly provided on the base (1), a central column (4) is fixedly provided on the end plate (2), a slider (5) is slidably provided on the central column (4), a pair of pull blades (6) and pull blades (7) are fixedly provided on the slider (5), a slider drive assembly is installed on the end plate (2), and multiple push rods (14) are fixedly provided on the end plate (2).

2. The broaching device for processing irregular structures on the inner wall of pipe fittings according to claim 1, characterized in that, The number of sliders (5) is one pair, and the pair of sliders (5) are fixedly connected by a crossbeam. The pair of sliders (5) are respectively placed on both sides of the central column (4).

3. The broaching device for processing irregular structures on the inner wall of pipe fittings according to claim 1, characterized in that, The first puller (6) and the second puller (7) are misaligned along the moving direction of the slider (5).

4. The broaching device for processing irregular structures on the inner wall of pipe fittings according to claim 1, characterized in that, The surface of the central column (4) is provided with a dovetail slide rail (13), and the slider (5) is provided with a dovetail groove (15) that matches the dovetail slide rail (13).

5. A broaching device for processing irregular structures on the inner wall of pipe fittings according to claim 1, characterized in that, The slider drive assembly includes a winch (8) and a pull rope (9). The winch (8) is fixed on the end plate (2). The end plate (2) has a through hole. One end of the pull rope (9) passes through the through hole and is wound inside the winch (8). The other end of the pull rope (9) is fixedly connected to the slider (5).

6. The broaching device for processing irregular structures on the inner wall of pipe fittings according to claim 1, characterized in that, The slider drive assembly includes a motor (12) and a threaded rod (10). The motor (12) is fixed on the end plate (2). One end of the threaded rod (10) is connected to the power output end of the motor (12). A threaded hole (11) is provided in the slider (5). The threaded rod (10) is threadedly connected to the threaded hole (11).

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