Pipe straightening machine

Abstract

The application discloses a pipe shaping machine, which comprises a workbench, an upper cross beam located above the workbench, a hydraulic cylinder installed on the upper cross beam, an intermediate beam connected with the hydraulic cylinder and located between the workbench and the upper cross beam and capable of reciprocating towards the workbench, a fixed lower die placed on the workbench and a movable upper die, a pressing block located below the intermediate beam and capable of moving with the intermediate beam, a linkage mechanism located on the pressing block, a butt joint assembly located between the linkage mechanism and the movable upper die, a pressing stroke of the pressing block cooperating with the linkage mechanism and the butt joint assembly and capable of pressing and holding the movable upper die and a lifting stroke of the pressing block cooperating with the linkage mechanism and the butt joint assembly and capable of driving the movable upper die to lift, and a turnover assembly located on one side of the movable upper die and capable of controlling the turnover of the movable upper die, wherein the turnover assembly drives the movable upper die to rotate when the movable upper die is located at the lifting stroke. The application has the following advantages and effects: the application replaces manual work with mechanical work, thereby improving the machining efficiency and reducing the hidden safety hazards.

Description

Technical Field

[0001] This invention relates to a pipe fitting processing equipment, and more particularly to a pipe fitting shaping machine. Background Technology

[0002] Pipe fittings are a collective term for components in a piping system that serve functions such as connection, control, direction change, flow distribution, sealing, and support. They include elbows, tees, crosses, reducers, pipe caps, and flanges, and can be categorized by connection method into threaded fittings, flanged fittings, and clamp fittings. Pipe fittings are all formed from steel pipes or plates through a series of processing devices. The flange processing step includes shaping, which requires a shaping machine to define the shape of the flange and ensure it conforms to national dimensional standards.

[0003] The existing forming machine includes a worktable, an upper crossbeam located above the worktable, a hydraulic cylinder mounted on the upper crossbeam, a middle beam connected to the hydraulic cylinder and located between the worktable and the upper crossbeam, reciprocating towards the worktable, and a fixed lower mold and a movable upper mold placed on the worktable. The flange to be processed is placed above the movable upper mold. The hydraulic cylinder drives the middle beam to press the flange into the cavity of the movable upper mold to complete the forming operation. Since the folded edge of the flange is located above the movable upper mold at this time, it is necessary to manually flip the movable upper mold and place a release module above the flange. The middle beam then presses the release module again to push the flange out of the cavity of the movable upper mold, thus completing the demolding operation. Due to the heavy weight of the movable upper mold, manually flipping it is extremely difficult. Furthermore, the movable upper mold is located between the worktable and the middle beam, limiting the space for manual force application, further increasing the difficulty of the flipping operation, affecting work efficiency, and posing certain safety hazards. Summary of the Invention

[0004] The purpose of this invention is to provide a pipe fitting shaping machine that uses mechanical means to replace manual labor, thereby improving processing efficiency and reducing potential safety hazards.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a pipe forming machine, including a worktable, an upper crossbeam located above the worktable, a hydraulic cylinder installed on the upper crossbeam, an intermediate beam connected to the hydraulic cylinder and located between the worktable and the upper crossbeam and reciprocating toward the worktable, and a fixed lower mold and a movable upper mold placed on the worktable. A pressure block is provided below the intermediate beam and moves with the intermediate beam. A linkage mechanism is provided on the pressure block. A docking component is provided between the linkage mechanism and the movable upper mold. The pressure block, in conjunction with the linkage mechanism and the docking component, has a pressing stroke that presses the movable upper mold and a lifting stroke that drives the movable upper mold to rise and fall. A flipping component is provided on one side of the movable upper mold to control the flipping of the movable upper mold. When the movable upper mold is in the lifting stroke, the flipping component drives the movable upper mold to rotate.

[0006] By adopting the above technical solution, the flange to be processed is placed above the movable upper mold. The hydraulic cylinder drives the intermediate beam to move the pressure block towards the flange, pressing the flange into the cavity of the movable upper mold to complete the flange shaping operation. During the pressing process, the pressing stroke of the linkage mechanism, in conjunction with the docking component, forms a docking operation between the linkage mechanism and the movable upper mold. This allows the pressure block, through the docking component and the lifting stroke of the linkage mechanism, to drive the movable upper mold upwards and detach it from the fixed lower mold. During its lifting stroke, the movable upper mold is flipped by a set flipping component. Then, a release module is manually placed between the pressure block and the flange. The pressure block applies downward pressure again, and with the release module, the flange demolding operation is completed. This method replaces manual labor with machinery, thereby improving processing efficiency and reducing potential safety hazards.

[0007] The assembly is further configured such that: the docking assembly includes a docking arm, a docking cavity formed in the docking arm and having an opening, a closing claw movably disposed in the docking arm and used to open and close the opening of the docking cavity, and a docking rod fixedly disposed in the movable upper mold for cooperating with the docking arm.

[0008] By adopting the above technical solution, the docking rod enters the docking cavity through the opening, and then the opening and closing operation is realized by the set opening and closing claws to complete the docking and separation operation of the docking components.

[0009] Further configuration: the opening of the docking cavity faces downwards; the closing claw consists of two claw bodies hinged to the docking arm and located on both sides of the opening of the docking cavity; the two claw bodies cooperate to open and close the opening of the docking cavity; the docking arm forms two rotating cavities for the claw bodies to rotate independently; the rotating cavity forms a limiting side and a reset side located above the limiting side and inclined; the claw body reciprocates between the limiting side and the reset side; when the claw body abuts against the limiting side, it restricts the claw body from moving away from the reset side and the opening of the docking cavity is in a closed state; when the claw body abuts against the reset side, the opening of the docking cavity is in an open state and the claw body has a tendency to move towards the limiting side.

[0010] By adopting the above technical solution, the docking arm drives the docking cavity with an opening to move downwards toward the docking rod. The docking rod abuts against the claw body, causing it to rotate from the limiting side to the resetting side, thus opening the docking cavity and allowing the docking rod to enter. After entering the docking cavity, the docking rod loses the force acting on the claw body, causing the claw body to rotate from the resetting side to the limiting side under the action of gravity, completing the closing operation of the docking cavity opening, thereby realizing the docking operation of the docking arm and the docking rod. Through the cooperation of the resetting side, the limiting side, and gravity, the structure for opening and closing the claw body is simpler, more practical, more reliable, and has a longer service life.

[0011] The linkage mechanism is further configured as follows: a sliding cavity formed in the pressure block, a linkage rod that is slidably disposed in the sliding cavity and connected to the docking assembly, a clamping spring that drives the linkage rod to move downward, and an anti-detachment assembly that constitutes the linkage between the pressure block and the linkage rod. The anti-detachment assembly restricts the linkage rod from leaving the sliding cavity and forms an active space for the linkage rod to extend and retract above the sliding cavity.

[0012] By adopting the above technical solution, the sliding cavity and the linkage rod slide and extend in coordination so that the existing linkage rod will not interfere with the movement of the pressure block. When the pressure block moves downward, the linkage rod retracts into the sliding cavity and realizes the docking operation of the docking component under the action of the clamping spring. When the pressure block moves upward, the linkage rod is restricted from separating from the sliding cavity by the anti-detachment component, so that the pressure block can drive the movable upper mold to perform lifting and lowering movements through the linkage mechanism, thereby forming a linkage operation.

[0013] The anti-detachment component is further configured as follows: the anti-detachment component includes an anti-detachment groove formed in the sliding cavity, an anti-detachment tooth slidably disposed on the linkage rod and reciprocating toward the anti-detachment groove, and a drive spring that drives the anti-detachment tooth to move toward the anti-detachment groove. The anti-detachment tooth cooperates with the anti-detachment groove to restrict the linkage rod from detaching from the sliding cavity.

[0014] By adopting the above technical solution, when the anti-detachment tooth moves to the anti-detachment groove position with the linkage rod, the anti-detachment tooth is engaged in the anti-detachment groove under the action of the drive spring, thereby limiting the separation of the linkage rod and the sliding cavity.

[0015] The further configuration includes a guide ramp formed above the anti-detachment tooth and a mating ramp formed in the anti-detachment groove to engage with the guide ramp, wherein the guide ramp engages with the mating ramp to allow the linkage rod to enter the active space.

[0016] By adopting the above technical solution, the inclined plane is guided to better switch the linkage rod between the sliding state and the anti-disengagement state, making the structure smoother and extending its service life.

[0017] The flipping assembly is further configured as follows: a rack located above one side of the movable upper mold, a gear rotatably disposed on the movable upper mold and moving with the movable upper mold, and a one-way component installed between the gear and the movable upper mold to form a one-way linkage between the two. The gear moves with the movable upper mold to mesh with the rack and flip, and cooperates with the one-way component to realize the horizontal flipping of the movable upper mold during the lifting and lowering process.

[0018] By adopting the above technical solution, the movable upper mold drives the gear to move up and down synchronously. During the up and down movement, the gear meshes with a rack on one side to drive the movable upper mold to rotate during the up and down movement. This mechanically replaces manual operation of the movable upper mold to complete the rotation operation. Furthermore, a one-way component is set to ensure that the movable upper mold rotates horizontally during the up and down movement, ensuring the durability and reliability of the structure.

[0019] The linkage is further configured such that: the linkage rod includes a connecting section for connecting the docking assembly and a sliding section for slidingly engaging with the sliding cavity; a locking block is formed on the connecting section and a locking groove is formed on the sliding section for engaging with the locking block; the locking block and the locking groove constitute an axial linkage and the two are detachably and fixedly connected.

[0020] By adopting the above technical solution, setting the linkage rod as a separate connecting section and sliding section makes it easier to separate the docking component from the movable upper mold, simplifying the replacement operation of the movable upper mold and making it suitable for processing flanges of different sizes. Furthermore, the connection between the two is formed by a locking block engaging with a slot, resulting in a more stable structure.

[0021] The configuration is further improved by having the connecting segment rotate to allow the card block to be inserted into the card slot, and a magnetic block for adsorbing the card slot is fixedly installed on the card block.

[0022] By adopting the above technical solution, the card block is inserted into the card slot to form an axial linkage. The magnetic block is set in cooperation to restrict the separation of the card block and the card slot, so as to achieve the purpose of detachable fixation and make disassembly and assembly more convenient.

[0023] In summary, the present invention has the following beneficial effects: the present invention replaces manual labor with mechanical means, thereby improving processing efficiency and reducing existing safety hazards. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 This is a partial structural diagram of an embodiment; Figure 3 This is a schematic diagram of the linkage rod and docking assembly in the embodiment; Figure 4 This is a cross-sectional view of the linkage rod and the docking assembly in the embodiment; Figure 5 This is a cross-sectional view of the anti-detachment component in the embodiment; Figure 6 for Figure 5 Enlarged view of section A in the middle; Figure 7 This is a schematic diagram of the flange demolding structure in the embodiment.

[0025] In the diagram: 1. Workbench; 2. Upper crossbeam; 3. Hydraulic cylinder; 4. Middle beam; 5. Fixed lower mold; 6. Movable upper mold; 7. Pressure block; 8. Linkage mechanism; 81. Sliding cavity; 82. Linkage rod; 821. Connecting section; 822. Sliding section; 83. Pressing spring; 84. Anti-detachment component; 841. Anti-detachment groove; 842. Anti-detachment tooth; 843. Drive spring; 9. Docking component; 91. Docking arm; 92. Docking cavity; 93. Docking rod; 94. Claw body; 10. Flipping component; 101. Rack; 102. Gear; 103. One-way component; 11. Rotating cavity; 12. Limiting side; 13. Reset side; 14. Guide slope; 15. Mating slope; 16. Locking block; 17. Locking groove; 18. Magnetic block; 19. Detachable module; 20. Flipped edge. Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] refer to Figures 1 to 7 A pipe forming machine includes a worktable 1, an upper crossbeam 2 fixedly mounted on and above the worktable 1, a hydraulic cylinder 3 fixedly mounted on the upper crossbeam 2, an intermediate beam 4 connected to the piston rod of the hydraulic cylinder 3 and located between the worktable 1 and the upper crossbeam 2, reciprocating toward the worktable 1, and a fixed lower mold 5 and a movable upper mold 6 placed on the worktable 1. A pressure block 7 is installed below the intermediate beam 4 and moves with the intermediate beam 4. A linkage mechanism 8 is provided on the pressure block 7, and a docking assembly 9 is provided between the linkage mechanism 8 and the movable upper mold 6. The pressure block 7, in conjunction with the linkage mechanism 8 and the docking assembly 9, has a pressing stroke for pressing the movable upper mold 6 and a lifting stroke for raising and lowering the movable upper mold 6. A flipping assembly 10 is provided on one side of the movable upper mold 6 to control its rotation. When the movable upper mold 6 is in the lifting stroke, the flipping assembly 10 drives the movable upper mold 6 to rotate 180 degrees.

[0028] Two sets of docking components 9 are symmetrically arranged along the axis of the movable upper mold 6. Each set of docking components 9 includes a docking arm 91, a docking cavity 92 formed in the docking arm 91 and having an opening, a closing claw movably disposed in the docking arm 91 for opening and closing the opening of the docking cavity 92, and a docking rod 93 fixedly disposed in the movable upper mold 6 for cooperating with the docking arm 91. The opening of the docking cavity 92 is oriented downwards. The closing claw consists of two claw bodies 94 hinged to the docking arm 91 and located on both sides of the opening of the docking cavity 92. The two claw bodies 94 cooperate to open and close the opening of the docking cavity 92. The docking arm 91 has two rotating cavities 11 for the claw body 94 to rotate independently. The rotating cavity 11 has a limiting side 12 and a reset side 13 located above the limiting side 12 and inclined. The claw body 94 reciprocates between the limiting side 12 and the reset side 13. When the claw body 94 abuts against the limiting side 12, it restricts the movement of the claw body 94 away from the reset side 13 and the opening of the docking cavity 92 is closed. When the claw body 94 abuts against the reset side 13, the opening of the docking cavity 92 is open and the claw body 94 has a gravitational tendency to move towards the limiting side 12.

[0029] The linkage mechanism 8 is provided with two sets of docking components 9, each corresponding to one of the two sets of docking components 9. The linkage mechanism 8 includes a sliding cavity 81 formed in the pressure block 7, a linkage rod 82 that is slidably disposed in the sliding cavity 81 and fixedly connected to the docking arm 91, a clamping spring 83 disposed in the sliding cavity 81 and driving the linkage rod 82 to move downward, and an anti-detachment component 84 that links the pressure block 7 and the linkage rod 82. The anti-detachment component 84 restricts the linkage rod 82 from detaching from the sliding cavity 81 and forms an active space above the sliding cavity 81 for the linkage rod 82 to extend and retract. The anti-detachment component 84 includes an anti-detachment groove 841 formed in the side wall of the sliding cavity 81, two anti-detachment teeth 842 that are symmetrically slidably disposed in the linkage rod 82 and reciprocate toward the anti-detachment groove 841, and a driving spring 843 that drives the two anti-detachment teeth 842 to move toward the anti-detachment groove 841. The anti-detachment teeth 842 cooperate with the anti-detachment groove 841 to restrict the linkage rod 82 from detaching from the sliding cavity 81. A guide slope 14 is provided above the anti-detachment tooth 842, and a mating slope 15 is formed on the anti-detachment groove 841 to cooperate with the guide slope 14. The guide slope 14 cooperates with the mating slope 15 to allow the linkage rod 82 to enter the active space.

[0030] The flipping assembly 10 has two sets, each corresponding to one of the two docking assemblies 9. The flipping assembly 10 includes a rack 101 fixedly mounted on the worktable 1 and located above one side of the movable upper mold 6, a gear 102 rotatably mounted on the docking rod 93, and a one-way component 103 installed between the gear 102 and the docking rod 93 to form a one-way linkage between the two. The gear 102 moves with the docking rod 93 to mesh with the rack 101 and flip, and cooperates with the one-way component 103 to realize the horizontal 180-degree flipping of the movable upper mold 6 during the lifting process. The one-way component 103 is a one-way bearing that one-way fixedly connects the gear 102 and the docking rod 93. The linkage rod 82 includes a connecting section 821 fixedly connected to the docking arm 91 and a sliding section 822 that slides with the sliding cavity 81. A locking block 16 is formed on the connecting section 821, and a locking groove 17 is formed on the sliding section 822 to engage with the locking block 16. The locking block 16 and the locking groove 17 form an axial linkage, and the two are detachably fixedly connected. The connecting section 821 rotates to allow the card block 16 to be inserted into the card slot 17, and a magnetic block 18 is fixedly installed on the card block 16 to attract the card slot 17. The sliding section 822 is made of iron.

[0031] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A pipe forming machine, comprising a worktable (1), an upper crossbeam (2) located above the worktable (1), a hydraulic cylinder (3) mounted on the upper crossbeam (2), an intermediate beam (4) connected to the hydraulic cylinder (3) and located between the worktable (1) and the upper crossbeam (2) and reciprocating toward the worktable (1), and a fixed lower mold (5) and a movable upper mold (6) placed on the worktable (1), characterized in that: Below the intermediate beam (4) is a pressure block (7) that moves with the intermediate beam (4). The pressure block (7) is equipped with a linkage mechanism (8). A docking component (9) is provided between the linkage mechanism (8) and the movable upper mold (6). The pressure block (7), in conjunction with the linkage mechanism (8) and the docking component (9), has a pressing stroke that allows the pressure block (7) to press the movable upper mold (6) and a lifting stroke that drives the movable upper mold (6) to rise and fall. A flipping component (10) is provided on one side of the movable upper mold (6) to control the flipping of the movable upper mold (6). When the movable upper mold (6) is in the lifting stroke, the flipping component (10) drives the movable upper mold (6) to flip. The mold (6) rotates, and the docking assembly (9) includes a docking arm (91), a docking cavity (92) formed on the docking arm (91) and having an opening, a closing claw movably disposed on the docking arm (91) for opening and closing the opening of the docking cavity (92), and a docking rod (93) fixedly disposed on the movable upper mold (6) for cooperating with the docking arm (91). The opening of the docking cavity (92) is arranged downwards. The closing claw consists of two claw bodies (94) hinged to the docking arm (91) and located on both sides of the opening of the docking cavity (92). The two claw bodies (94) cooperate to open and close the opening of the docking cavity (92). The docking arm (91) has two rotating cavities (11) for the individual rotation of the claw body (94). The rotating cavity (11) has a limiting side (12) and a reset side (13) located above the limiting side (12) and inclined. The claw body (94) reciprocates between the limiting side (12) and the reset side (13). When the claw body (94) abuts against the limiting side (12), the claw body (94) is restricted from moving away from the reset side (13) and the opening of the docking cavity (92) is closed. When the claw body (94) abuts against the reset side (13), the opening of the docking cavity (92) is closed. When in the open state and the claw (94) tends to move toward the limiting side (12), the flipping assembly (10) includes a rack (101) located above one side of the movable upper mold (6), a gear (102) rotatably disposed on the movable upper mold (6) and moving with the movable upper mold (6), and a one-way component (103) installed between the gear (102) and the movable upper mold (6) to form a one-way linkage between the two. The gear (102) moves with the movable upper mold (6) to mesh and flip with the rack (101) and cooperate with the one-way component (103) to realize the horizontal flipping of the movable upper mold (6) during the lifting process.

2. The pipe forming machine according to claim 1, characterized in that: The linkage mechanism (8) includes a sliding cavity (81) formed in the pressure block (7), a linkage rod (82) that is slidably disposed in the sliding cavity (81) and connected to the docking assembly (9), a clamping spring (83) that drives the linkage rod (82) to move downward, and an anti-detachment assembly (84) that constitutes the linkage between the pressure block (7) and the linkage rod (82). The anti-detachment assembly (84) restricts the linkage rod (82) from leaving the sliding cavity (81) and forms an active space above the sliding cavity (81) for the linkage rod (82) to extend and retract.

3. The pipe forming machine according to claim 2, characterized in that: The anti-detachment component (84) includes an anti-detachment groove (841) formed in the sliding cavity (81), an anti-detachment tooth (842) slidably disposed on the linkage rod (82) and reciprocating toward the anti-detachment groove (841), and a drive spring (843) driving the anti-detachment tooth (842) to move toward the anti-detachment groove (841). The anti-detachment tooth (842) cooperates with the anti-detachment groove (841) to restrict the linkage rod (82) from detaching from the sliding cavity (81).

4. The pipe forming machine according to claim 3, characterized in that: This includes a guide ramp (14) formed above the anti-detachment tooth (842) and a mating ramp (15) formed in the anti-detachment groove (841) to cooperate with the guide ramp (14). The guide ramp (14) and the mating ramp (15) cooperate to allow the linkage rod (82) to enter the active space.

5. The pipe forming machine according to claim 2, characterized in that: The linkage rod (82) includes a connecting section (821) that connects to the docking assembly (9) and a sliding section (822) that slides with the sliding cavity (81). A locking block (16) is formed on the connecting section (821) and a locking groove (17) is formed on the sliding section (822) that engages with the locking block (16). The locking block (16) and the locking groove (17) form an axial linkage and are detachably magnetically connected.

6. The pipe forming machine according to claim 5, characterized in that: The connecting section (821) rotates to allow the card block (16) to be inserted into the card slot (17), and a magnetic block (18) for adsorbing the card slot (17) is fixedly provided on the card block (16).

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