A metal pipe row hole drilling machine

Abstract

This application relates to the field of pipe processing equipment, and particularly to a metal pipe row hole machine, which includes a die core penetrating through a positioning and conveying mechanism, and the die core is connected to a socket body of the positioning and conveying mechanism; a pipe to be row-holed is inserted into the die core, and the pipe to be row-holed is clamped with the positioning and conveying mechanism. This application has the effect of stably rowing holes for pipes with different thicknesses.

Description

Technical Field

[0001] This application relates to the field of pipe processing equipment, and particularly to a metal pipe row hole punching machine. Background Art

[0002] A row hole punching machine, also known as a punching machine, is a mechanical device that, after installing the raw material, under the drive of a power mechanism, the punching output end acts on the material to complete punching. The row hole punching machine and the punching machine can perform operations such as processing thin sheets, metal pipe fittings, stamping, die pressing, and embossing.

[0003] A related row hole punching machine consists of a machine body, a numerical control box, a fixing mechanism, a positioning and conveying mechanism, and a punching mechanism. The fixing mechanism, the positioning and conveying mechanism, and the punching mechanism are all installed on the machine body. The positioning and conveying mechanism uses a positioning rod, a screw, a conveying rail, a receiving rack, and a receiving slot body. By rotating the screw, the receiving rack moves along the conveying rail. The positioning rod is fixed to the machine body and penetrates through the receiving rack. The receiving slot body is fixed to one end of the positioning rod close to the punching mechanism. The pipe fitting is inserted into the receiving slot body. One end of the pipe fitting is placed on the receiving rack, and the other end is placed on the punching mechanism through the receiving slot body and the positioning rod. When processing a pipe fitting, the pipe fitting to be processed is conveyed to the designated row hole position of the punching mechanism through the positioning and conveying mechanism. The fixing mechanism presses and fixes the pipe fitting to prevent deviation during row hole punching. The row hole die on the punching mechanism punches holes in the pipe fitting to be processed. After row hole punching, the pipe fitting is conveyed by the positioning and conveying mechanism, and the processed position of the pipe fitting is moved away. Other positions of the pipe fitting can be row hole punched until the required holes reach the specified holes. Then, by opening the fixing mechanism, the processed pipe fitting can be taken out and a new pipe fitting to be processed can be replaced.

[0004] For the currently commonly used row hole punching machines, the row hole punching of pipe fittings with different diameters and thicknesses is unstable. Especially for pipe fittings with a thickness of less than 3 mm, the thinner the thickness, the greater the difficulty of row hole punching, and the too thin pipe fittings are prone to being indented or broken under force.

[0005] Regarding the above related technologies, the inventor believes that there are defects in the unstable row hole punching of pipe fittings with different thicknesses. Summary of the Invention

[0006] In order to improve the problem of unstable row hole punching of pipe fittings with different thicknesses, this application provides a metal pipe row hole punching machine.

[0007] The metal pipe row hole punching machine provided by this application adopts the following technical solutions:

[0008] A metal pipe row hole punching machine includes a die core penetrating through the positioning and conveying mechanism, and the die core is connected to the receiving slot body of the positioning and conveying mechanism; the pipe fitting to be punched is inserted into the die core, and the pipe fitting to be row hole punched is clamped with the positioning and conveying mechanism.

[0009] By adopting the above technical solution, the die core is fixed on the socket body of the positioning output mechanism, and the pipe fitting to be punched is inserted into the die core, thus sleeving the die core and making the die core abut against the inner wall of the pipe fitting, reducing the pressure exerted on the pipe fitting during the punching process and reducing the situation of the pipe fitting being indented under pressure.

[0010] Preferably, the connection mode between the die core and the socket body of the positioning mechanism is a detachable connection.

[0011] By adopting the above technical solution, in the face of different pipe fittings, die cores of different sizes are needed for protection. The die core and the positioning rod are detachably connected, enabling the die core to be replaced with die cores of different sizes, dimensions, and shapes to adapt to pipe fittings of different sizes.

[0012] Preferably, a switching component and a top die component for providing compressive punching are further provided on the positioning and conveying mechanism; the switching component is installed on the socket body of the positioning and conveying mechanism, and the installation position is at the output end of the punching mechanism; the top die component is connected to the switching component.

[0013] By adopting the above technical solution, since different-sized pipe fittings require the replacement of appropriate die cores, and in the case of the lack of the required-sized die core or the loss of the appropriate-sized die core, it is difficult to provide support and protection for the pipe fittings. The position of the top die component is fixed at the punching position at the output end of the punching mechanism through the switching component, and then the top die component provides a supporting effect on the pipe wall, increasing the compressive capacity of the pipe wall and reducing the situation of the pipe wall being indented under pressure.

[0014] Preferably, the switching component includes a mounting seat and a threaded rod; the mounting seat is connected to the socket body of the positioning and conveying mechanism, and a threaded hole is provided on the mounting seat; the threaded rod is screwed into the threaded hole.

[0015] By adopting the above technical solution, the mounting seat is clamped to the socket body, and the position of the mounting seat is fixed through the socket body at the end of the positioning rod. The mounting seat can rotate along the threaded rod to adjust the position of the hole to be opened on the pipe fitting. For example, if the position of the hole to be opened on the pipe fitting is above the pipe fitting, the mounting seat drives the top die component to rotate along the external thread to the punching position above the pipe fitting, and the top die component abuts against the punching position to prevent the pipe wall from being damaged due to excessive pressure during punching. The mounting seat and the socket body are detachable, facilitating the replacement or repair of the top die component.

[0016] Preferably, the top die component includes a mounting cylinder, a top die block, and a driving member; the mounting cylinder is connected to the mounting seat, and a through hole for the telescopic movement of the ejecting block is provided on the mounting cylinder; the driving member is connected to the mounting cylinder; the top die block penetrates through the through hole and is in transmission connection with the output end of the driving member.

[0017] By adopting the above technical solution, when it is necessary to punch a pipe fitting, the driving member drives the top module to extend out of the installation cylinder through the through hole and move until the top module contacts the inner wall of the pipe fitting, and the top module supports the inner wall of the pipe fitting to reduce the pressure on the pipe fitting during punching.

[0018] Preferably, the top module is arranged as a wedge-shaped clamping block, and a wedge-shaped pushing block is arranged at the output end of the driving member, and the wedge-shaped pushing block abuts against the top module.

[0019] By adopting the above technical solution, the output end of the driving member pushes the top module through the wedge-shaped pushing block, so that the top module moves along the inclined surface of the wedge-shaped pushing block, and thus is pushed out of the installation cylinder through the through hole until it abuts against the inner wall of the pipe fitting.

[0020] Preferably, a limiting block is arranged on the hole wall of the through hole of the installation cylinder, and a limiting groove is arranged on the top module, and the limiting groove is slidably connected with the limiting block.

[0021] By adopting the above technical solution, the top module cannot be separated from the installation cylinder through the limiting effect of the limiting groove and the limiting block, preventing the limiting block from separating from the installation cylinder during the support process.

[0022] Preferably, a buffer layer is arranged on the top module.

[0023] By adopting the above technical solution, the provided buffer layer can adapt to the contact surfaces of different pipe fittings. For example, the contact surfaces of circular pipe fittings and square pipe fittings are different. The buffer layer is made of a soft material, and the buffer layer contacts the inner wall of the pipe fitting, so that the contact between the top module and the inner wall of the pipe fitting is more fitting.

[0024] Preferably, top modules are arranged at both ends of the outer edge of the installation cylinder along the relative directions of the inner wall of the pipe fitting.

[0025] By adopting the above technical solution, at both ends of the installation cylinder in the relative directions, such as the top and the bottom, arranging top modules at both ends can form a closed loop for the inner wall of the pipe fitting to provide support. If there is only support at one end, the pressure cannot be dispersed, and the top module is only supported by the switching component, resulting in insufficient support force. Arranging top modules at both ends can disperse the pressure and provide support by the inner wall of the pipe fitting, increasing the support force.

[0026] Preferably, the two top modules in the installation cylinder are connected by an elastic member.

[0027] By adopting the above technical solution, providing an elastic member can make the two top modules reset after punching.

[0028] In summary, the present application includes at least one of the following beneficial technical effects of the metal pipe row hole punching machine:

[0029] 1. Fix the mold core through the positioning and conveying mechanism, and insert the pipe into the mold core. The mold core is pressed against the inner wall of the pipe, so that the inner wall of the pipe is abutted by the mold core. When the pipe wall is under pressure during the hole arrangement process, the mold core can disperse the pressure, so that pipes with different thicknesses can be protected by the mold core for hole arrangement, making the hole arrangement more stable;

[0030] 2. The connection between the mold core and the socket body is a socket connection, so that the mold core can be replaced to adapt to pipe fittings of different diameters, sizes and shapes, thereby improving the adaptability of the pipe fittings;

[0031] 3. In the case where the required type of mold core is missing, the pipe fittings cannot be protected. The top mold assembly cooperates with the switching assembly to switch to the position where the pipe wall needs to be protected. When the pipe fittings are arranging holes, the top mold assembly abuts against the pipe wall to provide support for the pipe wall, thereby improving the pressure resistance of the pipe wall and ensuring that pipe fittings with different pipe thicknesses can be arranging holes smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of the hole-forming machine in Example 1 of the present application.

[0033] Figure 2 This is a schematic diagram of the three-dimensional structure of the core connection part in Example 1 of the present application.

[0034] Figure 3 This is a schematic diagram of the three-dimensional structure of the connecting part of the switching assembly and the top mold assembly in Example 2 of the present application.

[0035] Figure 4 This is a schematic diagram of the three-dimensional structure of the connection part of the switching component in Example 2 of the present application.

[0036] Figure 5 This is a schematic diagram of the three-dimensional structure of the top mold assembly in Example 2 of the present application.

[0037] Figure 6 This is a schematic diagram of the three-dimensional structure of the hidden mounting cylinder of the top mold assembly in Example 2 of the present application.

[0038] The marks in the accompanying drawings are: 1. machine body, 2. CNC box, 3. positioning and conveying mechanism, 31. screw, 32. conveying rail, 33. receiving frame, 34. socket body, 35. positioning rod, 4. punching mechanism, 5. fixing mechanism, 6. mold core, 7. switching assembly, 71. mounting seat, 72. threaded rod, 73. threaded hole, 8. top mold assembly, 81. mounting cylinder, 82. top module, 83. driving member, 84. wedge-shaped push block, 85. limit groove, 86. limit block, 87. buffer layer, 88. elastic member. DETAILED DESCRIPTION

[0039] The following is combined with Figures 1-6 To further explain this application:

[0040] Embodiment 1

[0041] An embodiment of the present application discloses a metal pipe row punching machine. Referring to Figure 1 and Figure 2 as shown, it includes a die core 6 penetrating through a positioning and conveying mechanism 3, and the die core 6 is connected to a socket body 34 of the positioning and conveying mechanism 3. A pipe to be punched is inserted into the die core 6, and the pipe to be row-punched is clamped with the positioning and conveying mechanism 3; the die core 6 is installed in the socket body 34 of the positioning and conveying mechanism 3, the pipe to be row-punched is inserted into the die core 6, one end of the pipe to be row-punched is fixed and supported by a receiving bracket 33 of the positioning and conveying mechanism 3, and the other end extends to a punching mechanism 4. During the row-punching process, the output end of the punching mechanism 4 presses down on the pipe to punch holes in the pipe. The pipe is subjected to the hole-punching action of the output end of the punching mechanism 4, causing the pipe wall to be pressured, resulting in the pipe wall being indented or broken under pressure. The die core 6 inserted inside the pipe contacts the pipe wall, indirectly increasing the thickness of the pipe wall to improve the compressive capacity of the pipe wall, so that the pipe is effectively protected during hole punching.

[0042] Referring to Figure 2 as shown, the connection mode between the die core 6 and the socket body 34 of the positioning mechanism is a detachable connection. The detachable connection between the die core 6 and the socket body 34 can be a plug-in connection, a limit clamping connection, etc. In this embodiment, a plug-in connection is adopted. After the die core 6 and the socket body 34 adopt a plug-in connection, the die core 6 can be removed from or inserted into the socket body 34 for replacing die cores 6 of different sizes, dimensions, and shapes to adapt to pipes of different sizes, dimensions, and shapes, improving the adaptability.

[0043] The implementation principle of Embodiment 1 of this application is as follows: The punching machine is composed of a machine body 1, a numerical control box 2, a fixing mechanism 5, a positioning and conveying mechanism 3, and a punching mechanism 4. The machine body 1 serves as a bearing carrier for the installation of other mechanisms. The positioning and conveying mechanism 3 is composed of a positioning rod 35, a screw rod 31, a conveying rail 32, and a receiving frame 33. By rotating the screw rod 31, the receiving frame 33 moves along the conveying rail 32. A die core 6 is inserted into the receiving slot body 34, and the pipe to be processed is inserted into the die core 6. One end of the pipe to be processed is placed on the receiving frame 33, and the other end is placed on the punching mechanism 4. When processing the pipe, the pipe to be processed is conveyed to the designated punching position of the punching mechanism 4 through the positioning and conveying mechanism 3. The fixing mechanism 5 fixes the pipe to prevent deviation during punching. The die on the punching mechanism 4 punches holes in the pipe to be processed. During the punching process, the output end of the punching mechanism 4 presses on the pipe wall to make holes in the pipe wall. The pipe wall will be dented or broken under the action of pressure. Therefore, the die core 6 contacts the pipe wall, indirectly increasing the thickness of the pipe wall to improve the compressive resistance of the pipe wall, effectively protecting the pipe during punching, increasing the stability of punching. After punching, the pipe is conveyed by the positioning and conveying mechanism 3, and the processed position of the pipe is moved away. Holes can be punched at other positions of the pipe until the required holes reach the specified holes. Then, the processed pipe is pulled out from the die core 6, and a new pipe to be processed is replaced. If the shape and size of the new pipe to be processed are different from those of the die core 6, the die core 6 can be taken out from the receiving slot body 34 to replace the die core 6 that fits the pipe to be processed.

[0044] Embodiment 2

[0045] Referring to Figure 3 and Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that a switching component 7 and a top die component 8 for providing compressive punching are further provided on the positioning and conveying mechanism 3; and the switching component 7 is located at the output end position of the punching mechanism 4, and the top die component 8 is fixedly connected to the switching component 7. The top die component 8 fits the inner wall of the pipe and provides pressing on the pipe wall at the same time, enhancing the compressive resistance of the pipe wall, so that the pipe with a too thin wall can still be punched.

[0046] Referring to Figure 4 As shown, the switching component 7 includes a mounting seat 71 and a threaded rod 72; the mounting seat 71 is clamped with the receiving slot body 34 of the positioning and conveying mechanism 3, and a threaded hole 73 is opened on the mounting seat 71. The threaded rod 72 is screwed with the threaded hole 73. The screw rod 31 drives the top die component 8 to rotate through the threaded hole 73 on the mounting seat 71, so that the output end of the top die component 8 rotates to the position where the pipe needs to be punched, so as to adapt to different punching positions required by different types of pipes. It can be rotated to the required position by the switching component 7 and then supported by the top die component 8 to prevent the pipe wall from being dented during punching. Since the mounting seat 71 is detachable from the receiving slot body 34, it is convenient to replace or repair the top die component 8.

[0047] Referring to Figure 5 and Figure 6 as shown, the top die assembly 8 includes a mounting cylinder 81, a top die block 82, and a driving member 83; the mounting cylinder 81 is fixedly connected to the mounting base 71, and a through hole is provided on the mounting cylinder 81. The driving member 83 is connected to the mounting cylinder 81, and the top die block 82 passes through the through hole and is in transmission connection with the output end of the driving member 83. The driving member 83 can be set as an electric push rod or a cylinder; the top die block 82 can be set as a wedge-shaped clamping block, and a wedge-shaped pushing block 84 is fixedly connected to the output end of the driving member 83. The wedge-shaped pushing block 84 and the top die block 82 in the shape of a wedge-shaped clamping block are in abutting relationship. When the mounting cylinder 81 rotates to the position of the hole to be drilled through the mounting base 71, the driving member 83 drives the wedge-shaped pushing block 84 to move through the output end. The wedge-shaped pushing block 84 abuts against the top die block 82, thereby driving the top die block 82 to move through the through hole towards the pipe wall direction. The top die block 82 continuously moves until it abuts against the inner wall of the pipe fitting, so as to provide a force to support the pipe wall at the position of the hole to be drilled, protecting the pipe wall when the pipe fitting is drilled, preventing the pipe wall from being too thin and deforming. The moving distance of the top die block 82 can adapt to pipe fittings of different sizes, improving the adaptability.

[0048] Referring to Figure 5 and Figure 6 as shown, top die blocks 82 are provided at both ends of the outer edge of the mounting cylinder 81 in the opposite direction of the inner wall of the pipe fitting. At both ends of the mounting cylinder 81 in the opposite direction, such as the top and the bottom, setting top die blocks 82 at both ends can form a closed loop for the inner wall of the pipe fitting to provide support. When the position of the hole to be drilled needs to be changed, the position of both ends of the mounting cylinder 81 can be rotated and switched by the switching assembly 7. The top die blocks 82 on the mounting cylinder 81 are connected by an elastic member 88. The elastic member 88 can be set as a compression spring. The inner wall of the pipe fitting is uniformly stressed by the top die blocks 82 on both sides of the mounting cylinder 81. When subjected to the pressure of drilling the hole, the pressure generated by drilling the hole is transmitted from the top die block 82 above the mounting cylinder 81 through the wedge-shaped pushing block 84 and the top die block 82 below the mounting cylinder 81 to the lower part of the pipe fitting, so as to disperse the pressure, increase the supporting force, and reduce the damage of the pipe fitting during the process of drilling the hole. After the drilling of the hole is completed, the elastic member 88 between the top die blocks 82 can pull the top die blocks 82 back into the mounting cylinder 81.

[0049] Referring to Figure 6 , a buffer layer 87 is provided on the top die block 82. Since the temperature of the pipe fitting rises instantaneously when drilling the hole, the buffer layer 87 can be set as high-temperature resistant materials such as refractory fiber cotton and refractory fiber blanket. Due to different types of pipe fittings to be adapted, the contact surfaces of the pipe wall contacted by the abutting of the top die block 82 are also different. For example, the contact surfaces of circular pipe fittings and square pipe fittings are different. The buffer layer 87 can make the top die block 82 fit more closely with the pipe wall, further improving the compressive resistance of the pipe wall.

[0050] Referring to Figure 5 and Figure 6A limit block 86 is provided on the hole wall of the through hole of the mounting tube 81, and a limit groove 85 is provided on the top module 82. The limit groove 85 is slidably connected with the limit block 86. The two top modules 82 in the mounting tube 81 are connected by an elastic member 88 to prevent the top module 82 from being continuously pushed by the wedge-shaped push block 84, which will cause the top module 82 to detach from the through hole and fall from the mounting tube 81. The position of the top module 82 is limited by the limit block 86 and the limit groove 85 to prevent the top module 82 from falling into the pipe fitting.

[0051] The implementation principle of Example 2 of the present application is as follows: when a hole-forming machine is needed to form holes on a pipe, the pipe to be processed is conveyed to the designated hole-forming position of the punching mechanism 4 through the positioning and conveying mechanism 3. At the same time, a switching component 7 is provided on the positioning and conveying mechanism 3, and the switching component 7 and the top die component 8 are fixed at the hole-forming position of the punching mechanism 4. Therefore, when the pipe to be processed is placed on the positioning and conveying mechanism 3, the switching component 7 and the top die component 8 enter the interior of the pipe. Different pipes require different hole-forming positions. The top die component 8 is adjusted to the corresponding hole-forming position through the switching component 7, and the top die module 82 and the buffer layer 87 of the top die component 8 are moved toward the pipe wall and fit the pipe wall. According to the different types and sizes of pipes, support is provided for the pipe wall to be drilled, the pressure on the pipe wall during the drilling process is reduced, and the pipe wall is prevented from sinking. Then the mold on the punching mechanism 4 drills holes for the pipe to be processed. After the drilling is completed, the elastic member 88 pulls the top module 82 back to the installation cylinder 81, and the pipe is transported by the positioning and conveying mechanism 3, and the processed position of the pipe is moved away, and holes can be drilled at other positions of the pipe. At this time, the top mold assembly 8 continues to push out the top module 82 and the buffer layer 87 to fit closely to the pipe wall for protection, and reciprocates in sequence until the required hole reaches the specified hole. The processed pipe can be taken out from the socket body 34 by opening the fixing mechanism 5 and replaced with a new pipe to be processed.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A metal pipe row punching machine, characterized in that, it comprises a machine body (1), a numerical control box (2), a fixing mechanism (5), a positioning and conveying mechanism (3), and a punching mechanism (4). The machine body (1) serves as a receiving carrier for installing other mechanisms. The positioning and conveying mechanism (3) includes a positioning rod (35), a screw rod (31), a conveying rail (32), and a receiving bracket (33). By rotating the screw rod (31), the receiving bracket (33) moves along the conveying rail (32). A die core (6) is inserted into the receiving slot body (34), and the pipe fitting to be processed is inserted into the die core (6). One end of the pipe fitting to be processed is placed on the receiving bracket (33), and the other end is placed on the punching mechanism (4); the output end of the fixing mechanism (5) abuts against the outer top surface of the pipe fitting to fix the pipe fitting; the die core (6) penetrates through the positioning and conveying mechanism (3); the pipe fitting to be punched is inserted into the die core (6), and the pipe fitting to be punched is clamped with the positioning and conveying mechanism (3); the connection mode between the die core (6) and the receiving slot body (34) of the positioning mechanism is a detachable connection; a switching component (7) and a top die component (8) for providing compressive punching are further arranged on the positioning and conveying mechanism (3); the switching component (7) is installed on the receiving slot body (34) of the positioning and conveying mechanism (3), and the installation position is at the output end of the punching mechanism (4); the top die component (8) is connected to the switching component (7); the switching component (7) includes a mounting seat (71) and a threaded rod (72); the mounting seat (71) is connected to the receiving slot body (34) of the positioning and conveying mechanism (3), and a threaded hole (73) is opened on the mounting seat (71); the threaded rod (72) is screwed with the threaded hole (73); the top die component (8) includes a mounting cylinder (81), a top die block (82), and a driving member (83); the mounting cylinder (81) is connected to the mounting seat (71), and a through hole for the top die block (82) to expand and contract is opened on the mounting cylinder (81); the driving member (83) is connected to the mounting cylinder (81); the top die block (82) penetrates through the through hole and is in transmission connection with the output end of the driving member (83); the top die block (82) is set as a wedge-shaped clamping block, and a wedge-shaped pushing block (84) is arranged at the output end of the driving member (83), and the wedge-shaped pushing block (84) and the top die block (82).

2. The metal pipe row punching machine according to claim 1, characterized in that, a limiting block (86) is arranged on the hole wall of the through hole of the mounting cylinder (81), a limiting groove (85) is arranged on the top die block (82), and the limiting groove (85) is in sliding connection with the limiting block (86).

3. The metal pipe row punching machine according to claim 1, characterized in that, a buffer layer (87) is arranged on the top die block (82).

4. The metal pipe row punching machine according to claim 1, characterized in that, top die blocks (82) are arranged at both ends of the outer edge of the mounting cylinder (81) in the relative direction of the inner wall of the pipe fitting.

5. The metal pipe row punching machine according to claim 1, characterized in that, The two top modules (82) inside the mounting cylinder (81) are connected by an elastic member (88).

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