A clamping type pipe end forming machine facilitating forming of a workpiece

Abstract

The utility model relates to the technical field of clamping and pressing type pipe end forming machine, and disclose a clamping and pressing type pipe end forming machine convenient to the forming of work piece, including work table, the top of work table is fixed with support frame, the top of work table is installed with three jaw chuck, the top of support frame is fixed with hydraulic cylinder, the output end bottom of hydraulic cylinder penetrates support frame, this clamping and pressing type pipe end forming machine convenient to the forming of work piece is set up when needing to install the expansion head, at the time, the mounting plate one is pasted with mounting plate two, makes fixed block enter butt joint groove, fixed post inserts installation slot, through setting up sliding ring, spring one, movable rod and stabilizer, make the clamping block enter the limiting slot and realize the limit, at the time, the normal bolt can be installed, need not to support, and will not happen misoperation and offset, improve installation efficiency, when dismantling, the clamping block is separated from the limiting slot and can be taken out by the lower pull long plate.

Description

Technical Field

[0001] This utility model relates to the technical field of press-fit tube end forming machine, specifically a press-fit tube end forming machine that facilitates the forming of workpieces. Background Technology

[0002] A press-fit pipe end forming machine is a specialized piece of equipment used to process press-fit grooves on the ends of pipes. In existing technology, such equipment typically uses a clamping or positioning mechanism to fix the pipe, then a drive mechanism moves a forming mold (also known as an "expansion head") into the pipe end, applying strong pressure to radially expand the pipe wall, thereby forming the desired annular groove. This groove is used to connect with pipe fittings, achieving a quick and sealed connection of the piping system.

[0003] Currently, the connection and fixation between the forming mold and the drive spindle of the equipment is generally achieved by bolt fastening. Specifically, a flange with mounting holes is usually installed at the tail of the expansion head, and correspondingly, threaded holes are provided on the end face of the drive spindle. During installation, the operator needs to precisely align the mounting holes at the tail of the expansion head with the threaded holes on the end face of the spindle, and then insert and tighten the bolts one by one to complete the fixation.

[0004] During installation, operators must hold the considerable weight and size of the expansion head for extended periods, maintaining its stability in the air while fine-tuning its position to locate and align it with the threaded holes on the spindle. This process is not only laborious but also extremely difficult and inefficient. Because the expansion head itself is heavy, it is highly susceptible to slippage due to fatigue, accidental contact, or other reasons, causing it to fall. This could injure operators or damage equipment, and a sudden fall could also cause partially aligned holes to shift, rendering all previous efforts futile and severely impacting the installation progress. Utility Model Content

[0005] The purpose of this invention is to provide a press-fit tube end forming machine that facilitates the forming of workpieces, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a clamping tube end forming machine for facilitating workpiece forming, comprising a worktable, a support frame fixed to the top of the worktable, a three-jaw chuck mounted on the top of the worktable, a hydraulic cylinder fixed to the top of the support frame, the bottom of the output end of the hydraulic cylinder penetrating the support frame, a mounting plate one fixed to the bottom of the output end of the hydraulic cylinder, a mounting plate two mounted on the bottom of the mounting plate one by bolts, an expansion head mounted on the bottom of the mounting plate two, and pre-connection components and limiting components provided on the inner walls and surfaces of the mounting plate two and the mounting plate one. The pre-connection components are used for pre-fixation without personnel support, and the limiting components are used to prevent accidental separation.

[0007] The pre-connected component includes:

[0008] Fixing blocks are used for positioning and installation.

[0009] The mounting slot is used to connect with the fixing column;

[0010] The card block is used in conjunction with the limit slot to achieve the limit.

[0011] Preferably, the fixing block is fixed to the top of the second mounting plate. The top of the fixing block has a mounting groove, and the inner side of the mounting groove has a limiting groove. The outer surface of the fixing block has a movable hole. The bottom of the first mounting plate has a docking groove. A fixing post is fixed to the inner wall of the docking groove, and a round rod is fixed to the inner wall of the fixing post. A slip ring is slidably connected to the outer surface of the round rod, and a movable rod is hinged to the outer surface of the slip ring. A locking block is hinged to the end of the movable rod away from the slip ring. A stabilizing frame is fixed to the inner wall of the fixing post, and the outer surface of the stabilizing frame is hinged to the side of the locking block away from the movable rod. A connecting hole is formed on the outer surface of the fixing post, and the locking block passes through the connecting hole. When the first mounting plate and the second mounting plate are in contact, the fixing block enters the docking groove, the fixing post inserts into the mounting groove, and the long plate passes through the movable hole. The locking block is compressed into the fixing post by the inner wall of the mounting groove. When the fixing block is fully inserted, the locking block aligns with the limiting groove, and the spring pushes the slip ring to reset, causing the locking block to engage in the limiting groove for fixation. To remove the device, simply pull down the long plate to disengage the locking block from the limiting groove.

[0012] Preferably, the limiting component includes a connecting plate fixed to the top of the mounting plate. A through hole is formed on the outer surface of the long plate. A rotating rod is provided on the outer surface of the connecting plate, passing through the connecting plate and rotatably connected to it. A stop bar is fixed to the bottom of the rotating rod, and a stabilizing groove is formed on the outer surface of the rotating rod. Rotating the rotating rod causes the stop bar to abut against the connecting plate, thereby restricting the movement of the long plate. Simultaneously, a stabilizing block, under the action of a second spring, engages with the stabilizing groove to prevent the rotating rod from rotating on its own. During replacement, rotating the rotating rod to align the stop bar with the through hole allows the long plate to be pulled down.

[0013] Preferably, a long plate is fixed to the outer surface of the slip ring, and the end of the long plate away from the slip ring passes through the fixed column. A spring is fixed to the bottom of the slip ring, and the bottom of the spring is fixed to the bottom of the inner wall of the fixed column. The side of the locking block away from the movable rod is set as an inclined surface. Pulling down the long plate makes it easy to release the limit. When the inclined surface of the locking block is abutted, the locking block can be flipped into the fixed column.

[0014] Preferably, a groove is provided on the inner side of the connecting plate, and a stabilizing block is slidably connected to the inner wall of the groove. A second spring is fixed to the outer surface of the stabilizing block, and the end of the second spring away from the stabilizing block is fixed to the inner wall of the groove. The cross-section of the end of the stabilizing block away from the second spring is triangular. The outer surface of the stabilizing block continuously contacts the inner wall of the stabilizing groove, allowing the stabilizing block to enter the groove without affecting the normal rotation of the rotating rod.

[0015] Preferably, the fixing block and the docking groove are both square, and the mounting groove and the fixing column are both cylindrical, which facilitates docking and installation by personnel.

[0016] Compared with the prior art, this utility model provides a press-fit tube end forming machine that facilitates the forming of workpieces, and has the following beneficial effects:

[0017] 1. This press-fit tube end forming machine, which facilitates the forming of workpieces, uses a pre-connection assembly. When an expansion head needs to be installed, mounting plate one and mounting plate two are attached, allowing the fixing block to enter the mating groove and the fixing post to be inserted into the mounting groove. Through the set slip ring, spring one, movable rod and stabilizer, the locking block enters the limiting groove to achieve limitation. At this time, bolts can be installed normally without support and without accidental contact or displacement, improving installation efficiency. When removing, pull down the long plate to remove the locking block from the limiting groove.

[0018] 2. This press-fit tube end forming machine, which facilitates workpiece forming, uses a limiting component. When the locking block and the limiting groove are mutually limited, rotating the rotating rod causes the stop bar to abut against the connecting plate, restricting the movement of the long plate. At the same time, the stabilizing block engages with the stabilizing groove to prevent the rotating rod from rotating on its own. For replacement, rotating the rotating rod to align the stop bar with the through hole allows the long plate to be pulled down for easy removal. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0021] Figure 3 This is a partial exploded structural diagram of the present invention;

[0022] Figure 4 This is a bottom view of the mounting plate of this utility model.

[0023] Figure 5 This is a cross-sectional front view of some of the pre-connection components and limiting components of this utility model;

[0024] Figure 6 This is a schematic diagram of the exploded cross-section and bottom view of a portion of the limiting component of this utility model.

[0025] In the diagram: 1. Workbench; 2. Support frame; 3. Three-jaw chuck; 4. Hydraulic cylinder; 5. Mounting plate one; 6. Mounting plate two; 7. Pre-connection assembly; 70. Fixing block; 71. Mounting groove; 72. Limiting groove; 73. Movable hole; 74. Connecting groove; 75. Fixing column; 76. Round rod; 77. Slip ring; 78. Spring one; 79. Movable rod; 700. Stabilizer; 701. Locking block; 702. Connecting hole; 703. Long plate; 8. Limiting assembly; 80. Connecting plate; 81. Through hole; 82. Rotating rod; 83. Slide groove; 84. Stabilizer; 85. Spring two; 86. Stop bar; 87. Stabilizer groove. Detailed Implementation

[0026] like Figures 1-6 As shown, this utility model provides a technical solution: a clamping tube end forming machine for easy forming of workpieces, including a worktable 1, a support frame 2 fixed on the top of the worktable 1, a three-jaw chuck 3 installed on the top of the worktable 1, a hydraulic cylinder 4 fixed on the top of the support frame 2, the bottom of the output end of the hydraulic cylinder 4 passing through the support frame 2, a mounting plate 5 fixed on the bottom of the output end of the hydraulic cylinder 4, a mounting plate 6 installed on the bottom of the mounting plate 5 by bolts, an expansion head installed on the bottom of the mounting plate 6, and a pre-connection component 7 and a limiting component 8 provided on the inner wall and surface of the mounting plate 6 and the mounting plate 5. The pre-connection component 7 is used for pre-fixation without personnel support, and the limiting component 8 is used to prevent accidental separation. The pre-connection component 7 includes: a fixing block 70, a mounting groove 71, a limiting groove 72, a movable hole 73, a docking groove 74, a fixing column 75, a round rod 76, a slip ring 77, a spring 78, a movable rod 79, a stabilizing frame 700, a clamping block 701, a connecting hole 702, and a long plate 703.

[0027] The fixing block 70 is fixed to the top of the mounting plate 6. The top of the fixing block 70 has a mounting groove 71, and the inner side of the mounting groove 71 has a limiting groove 72. The outer surface of the fixing block 70 has a movable hole 73. The bottom of the mounting plate 6 has a mating groove 74. A fixing post 75 is fixed to the inner wall of the mating groove 74. A round rod 76 is fixed to the inner wall of the fixing post 75. A slip ring 77 is slidably connected to the outer surface of the round rod 76. A movable rod 79 is hinged to the outer surface of the slip ring 77, and the movable rod 79 is away from the slip ring 76. One end of the 7 is hinged to a locking block 701. A stabilizing frame 700 is fixed to the inner wall of the fixed column 75. The outer surface of the stabilizing frame 700 is hinged to the side of the locking block 701 away from the movable rod 79. A connecting hole 702 is opened on the outer surface of the fixed column 75, through which the locking block 701 passes. A long plate 703 is fixed to the outer surface of the slip ring 77. The end of the long plate 703 away from the slip ring 77 passes through the fixed column 75. A spring 78 is fixed to the bottom of the slip ring 77, and the bottom of the spring 78 is fixed to the fixed column 75. At the bottom of the inner wall, the side of the locking block 701 away from the movable rod 79 is set as an inclined surface. The fixing block 70 and the mating groove 74 are both set as square, while the mounting groove 71 and the fixing post 75 are both set as cylindrical. The mounting plate 1 5 and the mounting plate 2 6 are attached to each other, so that the fixing block 70 enters the mating groove 74, and at the same time the fixing post 75 is inserted into the mounting groove 71. The long plate 703 passes through the movable hole 73. The inner wall of the mounting groove 71 contacts the inclined surface of the locking block 701, pushing the locking block 701 to flip and drive the movable rod 79 to rotate, so that the slip ring 77 As the device moves downward, the locking block 701 retracts into the fixing post 75. When the fixing block 70 is fully inserted into the docking groove 74, the locking block 701 aligns with the limiting groove 72, the spring 78 is released, pushing the slip ring 77 to reset, and the movable rod 79 drives the locking block 701 to engage in the limiting groove 72, thereby achieving the limiting fixation of the mounting plate 5 and the mounting plate 6, which facilitates bolt installation and eliminates the need for manual support. When removing the device, pull down the long plate 703 to move the slip ring 77 downward, and the movable rod 79 flips to disengage the locking block 701 from the limiting groove 72, allowing it to be removed and replaced.

[0028] The limiting component 8 includes a connecting plate 80, which is fixed to the top of the mounting plate 5. A through hole 81 is formed on the outer surface of the long plate 703. A rotating rod 82 is provided on the outer surface of the connecting plate 80, passing through the connecting plate 80 and rotatably connected to it. A stop strip 86 is fixed to the bottom of the rotating rod 82. A stabilizing groove 87 is formed on the outer surface of the rotating rod 82. A sliding groove 83 is formed on the inner side of the connecting plate 80. A stabilizing block 84 is slidably connected to the inner wall of the sliding groove 83. A second spring 85 is fixed to the outer surface of the stabilizing block 84. The end of the second spring 85 away from the stabilizing block 84 is fixed to the inner wall of the sliding groove 83. The cross-section of the end of the stabilizing block 84 away from the second spring 85... The structure is triangular. Rotating the rotating rod 82 causes the stop bar 86 to rotate, so that the outer surface of the stop bar 86 intersects with the through hole 81 and abuts against the outer surface of the connecting plate 80, thereby restricting the movement of the long plate 703 and preventing accidental contact that could damage the stability of the mounting plate 5 and the mounting plate 6. During the rotation of the rotating rod 82, the inner wall of the stabilizing groove 87 pushes the stabilizing block 84 into the sliding groove 83 and compresses the second spring 85. When the stabilizing block 84 is aligned with the stabilizing groove 87, the second spring 85 is released, pushing the stabilizing block 84 into the stabilizing groove 87 to prevent the rotating rod 82 and the stop bar 86 from rotating on their own. When replacement is required, after removing the bolts, rotate the rotating rod 82 again to make the stop bar 86 parallel to the through hole 81, and then the long plate 703 can be pulled down normally.

[0029] When installation is required, mount plate 5 and mount plate 6 are aligned so that the fixing block 70 enters the mating groove 74, and the fixing post 75 enters the mounting groove 71. Simultaneously, the long plate 703 passes through the movable hole 73. At this point, the inner wall of the mounting groove 71 abuts against the inclined surface of the locking block 701, causing the locking block 701 to rotate. Simultaneously, the movable rod 79 rotates, causing the slip ring 77 to move downwards, allowing the locking block 701 to enter the fixing post 75. When the fixing block 70 is fully inserted into the mating groove 74, the locking block 701... When the position is parallel to the limiting groove 72, the spring 78 is released, which drives the slip ring 77 to reset. At this time, the movable rod 79 drives the locking block 701 to reset and enter the docking groove 74, so that the mounting plate 5 and the mounting plate 6 are mutually limited. At the same time, rotating the rotating rod 82 drives the stop bar 86 to rotate, so that the outer surface of the stop bar 86 intersects with the through hole 81, and the outer surface of the stop bar 86 abuts against the outer surface of the connecting plate 80, thus limiting the long plate 703 and preventing accidental contact with the long plate 703 and the impact of releasing the limit. The stability of mounting plates 5 and 6 is ensured. Simultaneously, when the rotating rod 82 rotates, the inner wall of the stabilizing groove 87 abuts against the outer surface of the stabilizing block 84, allowing the stabilizing block 84 to move into the sliding groove 83. At the same time, spring 85 is compressed. When the stabilizing block 84 is parallel to the stabilizing groove 87, spring 85 is released, thus driving the stabilizing block 84 into the stabilizing groove 87. This prevents the rotating rod 82 and the stop bar 86 from rotating on their own, affecting their stability. At this point, installation can be carried out normally with bolts, without manual assistance, and without any risk of... Accidental misalignment affects bolt installation efficiency. During processing, the pipe is clamped by the three-jaw chuck 3 to facilitate subsequent workpiece forming. The hydraulic cylinder 4 is activated to drive the expansion head downward for processing. When the expansion head needs to be replaced, the bolt is removed, and the rotating rod 82 is rotated again so that the position of the stop bar 86 is parallel to the through hole 81. At this time, the long plate 703 can be pulled down normally, which will drive the slip ring 77 to move down synchronously, causing the movable rod 79 to flip and pull the locking block 701 out of the limit groove 72, so that it can be taken out normally for replacement.

[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A press-fit tube end forming machine for facilitating workpiece forming, comprising a worktable (1), characterized in that: The top of the workbench (1) is fixed with a support frame (2), and a three-jaw chuck (3) is installed on the top of the workbench (1). A hydraulic cylinder (4) is fixed on the top of the support frame (2). The bottom of the output end of the hydraulic cylinder (4) passes through the support frame (2). A mounting plate one (5) is fixed on the bottom of the output end of the hydraulic cylinder (4). A mounting plate two (6) is installed on the bottom of the mounting plate one (5) by bolts. An expansion head is installed on the bottom of the mounting plate two (6). A pre-connection component (7) and a limiting component (8) are provided on the inner wall and surface of the mounting plate two (6) and the mounting plate one (5). The pre-connection component (7) is used for pre-fixing without the need for personnel support. The limiting component (8) is used to prevent accidental separation. The pre-connected component (7) includes: Fixing block (70), fixing block (70) is used for positioning and installation; Mounting slot (71) is used to connect with fixing column (75); The card block (701) is used to cooperate with the limit slot (72) to achieve the limit.

2. The clamping-type tube end forming machine for facilitating workpiece forming according to claim 1, characterized in that: The fixing block (70) is fixed to the top of the mounting plate two (6). The top of the fixing block (70) is provided with a mounting groove (71). The inner side of the mounting groove (71) is provided with a limiting groove (72). The outer surface of the fixing block (70) is provided with a movable hole (73). The bottom of the mounting plate one (5) is provided with a docking groove (74). The inner wall of the docking groove (74) is fixed with a fixing post (75). The inner wall of the fixing post (75) is fixed with a round rod (76). The outer surface of the round rod (76) is slidably connected with a slip ring (77). The outer surface of the slip ring (77) is hinged with a movable rod (79), and the end of the movable rod (79) away from the slip ring (77) is hinged with a locking block (701). The inner wall of the fixed column (75) is fixed with a stabilizing frame (700), and the outer surface of the stabilizing frame (700) is hinged to the side of the locking block (701) away from the movable rod (79). The outer surface of the fixed column (75) is provided with a connecting hole (702), and the locking block (701) passes through the connecting hole (702). The outer surface of the slip ring (77) is fixed with a long plate (703).

3. A clamping-type tube end forming machine for facilitating workpiece forming according to claim 2, characterized in that: The limiting component (8) includes a connecting plate (80), which is fixed to the top of the mounting plate (5). The outer surface of the long plate (703) is provided with a through hole (81). The outer surface of the connecting plate (80) is provided with a rotating rod (82), which passes through the connecting plate (80) and is rotatably connected to the connecting plate (80). The bottom of the rotating rod (82) is fixed with a stop strip (86), and the outer surface of the rotating rod (82) is provided with a stabilizing groove (87).

4. A clamping-type tube end forming machine for facilitating workpiece forming according to claim 2, characterized in that: The end of the long plate (703) away from the slip ring (77) passes through the fixed column (75). A spring (78) is fixed to the bottom of the slip ring (77). The bottom of the spring (78) is fixed to the bottom of the inner wall of the fixed column (75). The side of the locking block (701) away from the movable rod (79) is set as an inclined surface.

5. A clamping-type tube end forming machine for facilitating workpiece forming according to claim 3, characterized in that: The inner side of the connecting plate (80) is provided with a sliding groove (83), and a stabilizing block (84) is slidably connected to the inner wall of the sliding groove (83). A second spring (85) is fixed on the outer surface of the stabilizing block (84). The end of the second spring (85) away from the stabilizing block (84) is fixed on the inner wall of the sliding groove (83), and the cross-section of the end of the stabilizing block (84) away from the second spring (85) is triangular.

6. A clamping-type tube end forming machine for facilitating workpiece forming according to claim 2, characterized in that: The fixing block (70) and the docking groove (74) are both square, and the mounting groove (71) and the fixing column (75) are both cylindrical.

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