Pipe fitting bending device

Abstract

The utility model relates to the technical field of bending devices, in particular to a pipe fitting bending device. Comprising a workbench, a fixing frame arranged on one side of the workbench, a bending mechanism arranged on the fixing frame and used for bending a pipe fitting, a sliding table arranged at the top of the workbench and capable of moving in the horizontal direction and an adjusting mechanism arranged at the top of the sliding table and used for conveying the pipe fitting, and the adjusting mechanism comprises a fixing base fixed to the upper end face of the sliding table; two supporting tables are symmetrically arranged on the upper end face of the fixing base. A rotatable guide pipe is horizontally mounted in the supporting table, and a toothed belt is arranged outside the guide pipe; a feeding mechanism used for driving the pipe to be fed along the center axis of the guiding pipe is fixed to the input end of the guiding pipe. By means of the pipe fitting bending device, multi-angle bending machining of pipe fittings can be achieved. The pipe fitting bending device solves the problem that a pipe fitting bending device cannot adjust the bending angle.

Description

Technical Field

[0001] This utility model relates to the field of bending device technology, specifically to a pipe bending device. Background Technology

[0002] Pipe bending is a cold working method that applies external force to metal pipes using specialized equipment, causing them to undergo controlled plastic deformation. This process has wide applications in the machinery manufacturing industry, particularly in the forming and processing of engine piping systems. Its core technology lies in precisely controlling process parameters such as loading force, bending radius, and deformation rate to induce plastic yielding in the pipe after the elastic deformation stage, ultimately forming a bending angle and arc shape that meets design requirements.

[0003] Chinese patent CN219211191U discloses a pipe bending device, including a mounting plate. A pipe wheel for rolling and conveying the pipe is rotatably connected to the mounting plate. The mounting plate has a stroke groove and a reciprocating assembly. A bending assembly is mounted on the reciprocating assembly and drives the bending assembly to move along the inner wall of the stroke groove. A limiting assembly that extends and retracts perpendicular to the direction of movement of the bending assembly is movably connected to the reciprocating assembly. This bending device, through the limiting assembly that moves synchronously with the bending assembly, ensures that the bent engine pipe contacts the limiting assembly during the rolling bending process. This limits the bending radius and stroke of the engine pipe, preventing over-bending and improving the bending quality.

[0004] The bending device described in the aforementioned patent document can bend pipe fittings through the coordinated action of the bending and limiting components. However, the aforementioned bending device can only perform unidirectional bending operations on the pipe fittings and cannot adjust the bending direction. Therefore, a pipe fitting bending device is proposed. Utility Model Content

[0005] To address the aforementioned problems, a pipe bending device is provided. This device utilizes the rotation of a guide tube to synchronously rotate the internal pipe fitting, facilitating adjustment of the bending direction. This enables multi-angle bending of the pipe fitting and solves the problem that pipe bending devices cannot adjust the bending angle.

[0006] To address the problems of the prior art, this application provides a pipe bending device, including a worktable, a fixed frame disposed on one side of the worktable, a bending mechanism disposed on the fixed frame for bending pipes, a slide disposed on the top of the worktable that can move in a horizontal direction, and an adjustment mechanism disposed on the top of the slide for conveying pipes, wherein the adjustment mechanism includes a fixed seat fixed to the upper surface of the slide.

[0007] The upper end of the fixed base is symmetrically equipped with two support platforms;

[0008] The support platform has a horizontally mounted, rotatable guide tube inside, and a toothed belt is installed on the outside of the guide tube.

[0009] The input end of the guide tube is fixed with a feeding mechanism for driving the tube to feed along its central axis.

[0010] As one technical solution of this application, a bearing sleeve capable of rotating around its central axis is installed on the outside of the guide tube;

[0011] The top of the support platform is provided with an arc-shaped groove for installing the bearing sleeve.

[0012] The top of the support platform is fixed with an arc-shaped fixing plate to prevent the bearing sleeve from falling off.

[0013] As one technical solution of this application, the feeding mechanism includes a housing fixed to the input end of the guide tube, and a through hole for the pipe to pass through is horizontally opened at the center of the housing;

[0014] The through hole has symmetrical mounting grooves on both sides, and a rotatable conveying roller is installed inside the mounting groove. A driven gear is rotatably mounted on one side of the housing, and the driven gear is fixed to the extension end of one set of conveying rollers.

[0015] A servo motor is fixed to one side of the housing, and a second gear that can mesh with the driven gear is fixed to the output end of the servo motor.

[0016] As one technical solution of this application, the bending mechanism includes a second stepper motor fixed to the lower end face of the fixed frame, and the output end of the second stepper motor can penetrate through the upper end face of the fixed frame and extend upward.

[0017] The output end of the second stepper motor is fixed with a rotary table that can rotate around its central axis, and the upper surface of the rotary table is horizontally fixed with a first slide rail near the output end of the second stepper motor.

[0018] The upper surface of the rotary table is provided with a slide block that can be close to or away from the output end of the second stepper motor, and the slide block slides in cooperation with the first slide rail.

[0019] As one technical solution of this application, the output end of the second stepper motor is also fixed with a stop roller, and the bottom of the stop roller is located on the top of the rotary table;

[0020] The top of the slide block is longitudinally fixed with a mounting column, and an extrusion roller capable of cooperating with the stop roller to clamp the pipe is installed on the outside of the mounting column.

[0021] As one technical solution of this application, a first hydraulic telescopic component for driving the slide block to slide along the first slide block is fixed at one end of the upper surface of the rotary table near the first slide rail, and the output end of the first hydraulic telescopic component is fixedly connected to the slide block.

[0022] As a technical solution of this application, the upper end face of the fixed frame is provided with a material blocking mechanism. The material blocking mechanism includes a base fixed to the side of the rotating table, and a second slide rail for limiting the position is fixed on the upper end face of the base.

[0023] The top of the base is equipped with a stop block that can move closer to or further away from the pipe fitting, and the stop block slides in cooperation with the second slide rail.

[0024] As one technical solution of this application, a second hydraulic telescopic component for driving the stop block to slide along the second slide rail is fixed at one end of the upper surface of the base near the second slide rail.

[0025] The advantages of this utility model compared to the prior art are:

[0026] This application utilizes the rotation of a guide tube to synchronously rotate the internal tubing, facilitating the adjustment of the tubing's bending direction. This enables multi-angle bending of the tubing and solves the problem of tubing bending devices being unable to adjust the bending angle. Attached Figure Description

[0027] Figure 1 A schematic diagram of the three-dimensional structure of a pipe bending device. Figure 1 .

[0028] Figure 2 A schematic diagram of the three-dimensional structure of a pipe bending device. Figure 2 .

[0029] Figure 3 This is a three-dimensional view of the adjusting mechanism in a pipe bending device.

[0030] Figure 4 This is an exploded view of the adjusting mechanism in a pipe bending device.

[0031] Figure 5 This is a three-dimensional view of the feeding mechanism in a pipe bending device.

[0032] Figure 6 This is a cross-sectional view of the feeding mechanism in a pipe bending device.

[0033] Figure 7 This is a three-dimensional diagram of the bending mechanism in a pipe bending device.

[0034] The diagram is labeled as follows: 1. Workbench; 11. Fixed frame; 2. Slide table; 3. Adjustment mechanism; 31. Fixed seat; 32. Support platform; 321. Arc groove; 322. Arc fixed plate; 33. Guide tube; 331. Toothed belt; 332. Bearing sleeve; 34. First stepper motor; 35. First gear; 4. Feeding mechanism; 41. Housing; 411. Through hole; 412. Mounting groove; 43. Servo motor; 431. Second gear; 44. Conveying roller; 441. Driven gear; 5. Bending mechanism; 51. Second stepper motor; 52. Rotary table; 521. First slide rail; 53. Stopping roller; 54. Slide seat; 541. Mounting column; 542. Extrusion roller; 55. First hydraulic telescopic component; 6. Stopping mechanism; 61. Base; 611. Second slide rail; 62. Second hydraulic telescopic component; 63. Stopping block. Detailed Implementation

[0035] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0036] See Figures 1-7 As shown, a pipe bending device includes a workbench 1, a fixed frame 11 disposed on one side of the workbench 1, a bending mechanism 5 disposed on the fixed frame 11 for bending pipes, a slide 2 disposed on the top of the workbench 1 that can move in the horizontal direction, and an adjustment mechanism 3 disposed on the top of the slide 2 for conveying pipes. The adjustment mechanism 3 includes a fixed seat 31 fixed to the upper end face of the slide 2.

[0037] Two support platforms 32 are symmetrically arranged on the upper surface of the fixed base 31;

[0038] The support platform 32 has a horizontally mounted rotatable guide tube 33 inside, and a toothed belt 331 is provided on the outside of the guide tube 33.

[0039] The input end of the guide tube 33 is fixed with a feeding mechanism 4 for driving the tube to feed along its central axis.

[0040] A first stepper motor 34 is installed at the bottom of one of the support platforms 32, and a first gear 35 that meshes with a toothed belt 331 is fixed at the output end of the first stepper motor 34. The feeding mechanism 4 drives the internal tube to move along the central axis of the guide tube 33, allowing one end of the tube to enter the bending mechanism 5 for bending. After the bending mechanism 5 completes the initial bend of one end of the tube, the feeding mechanism 4 continues to drive the internal tube to move, and the bent portion of the tube extends out of the bending mechanism 5 without detaching from it. Then, the first stepper motor 34 is activated, driving the output end to rotate at a preset angle. This rotation of the output end by the first stepper motor 34 simultaneously drives the first gear 35 to rotate synchronously. At the same time, the first gear 35, through the meshing toothed belt 331, drives the guide tube 33 to rotate at a set angle. This allows for adjustment of the bending angle of the tube.

[0041] See Figure 3 and Figure 4 As shown, a bearing sleeve 332 capable of rotating around its central axis is mounted on the outside of the guide tube 33;

[0042] The top of the support platform 32 is provided with an arc-shaped groove 321 for installing the bearing sleeve 332;

[0043] The top of the support platform 32 is fixed with an arc-shaped fixing plate 322 to prevent the bearing sleeve 332 from falling off.

[0044] By installing a bearing sleeve 332 on the outside of the guide tube 33, then installing the bearing sleeve 332 inside the arc-shaped groove 321 opened on the top of the support platform 32, and then fixing the bearing sleeve 332 with an arc-shaped fixing plate 322, displacement of the guide tube 33 during rotation is effectively prevented.

[0045] See Figure 4 and Figure 5 As shown, the feeding mechanism 4 includes a housing 41 fixed to the input end of the guide tube 33, and a through hole 411 for the passage of the pipe is horizontally opened at the center of the housing 41.

[0046] The through hole 411 has symmetrical mounting grooves 412 on both sides. The mounting grooves 412 are equipped with rotatable conveying rollers 44. A driven gear 441 is rotatably mounted on one side of the housing 41. The driven gear 441 is fixed to the extension end of one set of conveying rollers 44.

[0047] A servo motor 43 is fixed on one side of the housing 41, and a second gear 431 that can mesh with the driven gear 441 is fixed at the output end of the servo motor 43.

[0048] First, the pipe fitting is inserted into the mounting slot 412, so that the outer surface of the pipe fitting contacts the outer ring of the conveying roller 44. When the servo motor 43 is started, the servo motor 43 drives the second gear 431 installed at its output end to rotate. Simultaneously, the rotation of the second gear 431 drives one set of conveying rollers 44 to rotate via the driven gear 441 meshing with it. When the conveying rollers 44 rotate, they can effectively achieve automatic feeding of the pipe fitting by driving its movement.

[0049] See Figure 7 As shown, the bending mechanism 5 includes a second stepper motor 51 fixed to the lower end face of the fixed frame 11. The output end of the second stepper motor 51 can pass through the upper end face of the fixed frame 11 and extend upward.

[0050] The output end of the second stepper motor 51 is fixed with a rotary table 52 that can rotate around its central axis. The upper surface of the rotary table 52 is horizontally fixed with a first slide rail 521 near the output end of the second stepper motor 51.

[0051] The upper surface of the rotary table 52 is provided with a slide block 54 that can be close to or away from the output end of the second stepper motor 51. The slide block 54 is slidably engaged with the first slide rail 521.

[0052] When the second stepper motor 51 is started, it drives the rotary table 52 fixed at its output end, allowing the rotary table 52 to rotate around its output end at a set angle. As the rotary table 52 rotates, it drives the slide 54 mounted on its upper surface to rotate synchronously around the central axis of the output end of the second stepper motor 51.

[0053] See Figure 7 As shown, the output end of the second stepper motor 51 is also fixed with a stop roller 53, and the bottom of the stop roller 53 sits on the top of the rotary table 52;

[0054] A mounting column 541 is longitudinally fixed to the top of the slide block 54, and an extrusion roller 542 that can cooperate with the stop roller 53 to clamp the pipe is mounted on the outside of the mounting column 541.

[0055] The extrusion roller 542 is mounted on a mounting post 541 fixed to the top of the slide 54. When the slide 54 approaches the output end of the second stepper motor 51, the slide 54, through the mounting post 541, drives one side of the extrusion roller 542 to contact the surface of the pipe, allowing the extrusion roller 542 to cooperate with the stop roller 53 to clamp the pipe. Then, driven by the rotary table 52, the slide 54 rotates around the output end of the second stepper motor 51, thereby causing the slide 54 to drive the extrusion roller 542 to rotate synchronously around the output end of the second stepper motor 51 through the mounting post 541. This achieves the bending of the pipe by the cooperation of the extrusion roller 542 and the stop roller 53.

[0056] See Figure 7 As shown, a first hydraulic telescopic member 55 for driving the slide block 54 to slide along the first slide rail 521 is fixed on one end of the upper surface of the rotary table 52. The output end of the first hydraulic telescopic member 55 is fixedly connected to the slide block 54.

[0057] By fixing the output end of the first hydraulic telescopic component 55 to the slide 54, the first hydraulic telescopic component 55 can drive the slide 54 to move closer to or further away from the output end of the second stepper motor 51. This enables the slide 54 to drive the extrusion roller 542 to move synchronously via the mounting column 541, effectively ensuring that the extrusion roller 542 can work in conjunction with the stop roller 53 to fix the pipe, thereby ensuring the pipe's integrity.

[0058] See Figure 7 As shown, a material blocking mechanism 6 is provided on the upper end face of the fixed frame 11. The material blocking mechanism 6 includes a base 61 fixed to the side near the rotating table 52. A second slide rail 611 for limiting is fixed on the upper end face of the base 61.

[0059] The top of the base 61 is provided with a stop block 63 that can move closer to or further away from the pipe fitting, and the stop block 63 slides in cooperation with the second slide rail 611.

[0060] As the stop block 63 slides along the second slide rail 611, one side of the stop block 63 gradually approaches the surface of the pipe fitting until one side of the stop block 63 contacts the surface of the pipe fitting, thus limiting the pipe fitting. This effectively prevents the pipe fitting from deforming near the bending point during the bending process.

[0061] See Figure 7 As shown, a second hydraulic telescopic component 62 for driving the stop block 63 to slide along the second slide rail 611 is fixed at one end of the upper surface of the base 61 near the second slide rail 611.

[0062] By fixing the stop block 63 to the output end of the second hydraulic telescopic member 62, when the output end of the second hydraulic telescopic member 62 extends or retracts, the second hydraulic telescopic member 62 can drive the stop block 63 to slide along the second slide rail 611.

[0063] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A pipe bending device, comprising a worktable (1), a fixed frame (11) disposed on one side of the worktable (1), a bending mechanism (5) disposed on the fixed frame (11) for bending pipes, a slide (2) disposed on the top of the worktable (1) and capable of moving horizontally, and an adjustment mechanism (3) disposed on the top of the slide (2) for conveying pipes, characterized in that, The adjustment mechanism (3) includes a fixed seat (31) fixed to the upper end face of the slide (2); The upper end face of the fixed base (31) is symmetrically provided with two support platforms (32); The support platform (32) has a horizontally mounted rotatable guide tube (33), and a toothed belt (331) is provided on the outside of the guide tube (33). The input end of the guide tube (33) is fixed with a feeding mechanism (4) for driving the tube to feed along its central axis.

2. The pipe bending device according to claim 1, characterized in that, The guide tube (33) is externally fitted with a bearing sleeve (332) that is rotatable about its central axis. The top of the support platform (32) is provided with an arc-shaped groove (321) for installing the bearing sleeve (332). The top of the support platform (32) is fixed with an arc-shaped fixing plate (322) to prevent the bearing sleeve (332) from falling off.

3. The pipe bending device according to claim 1, characterized in that, The feeding mechanism (4) includes a housing (41) fixed at the input end of the guide tube (33), and a through hole (411) for the pipe to pass through is horizontally opened at the center of the housing (41). The through hole (411) is symmetrically provided with mounting grooves (412) on both sides. Rotatable conveying rollers (44) are installed inside the mounting grooves (412). A driven gear (441) is rotatably provided on one side of the housing (41). The driven gear (441) is fixed to the extension end of one set of conveying rollers (44). A servo motor (43) is fixed on one side of the housing (41), and a second gear (431) that can mesh with the driven gear (441) is fixed at the output end of the servo motor (43).

4. A pipe bending device according to claim 1, characterized in that, The bending mechanism (5) includes a second stepper motor (51) fixed to the lower end face of the fixed frame (11). The output end of the second stepper motor (51) can pass through the upper end face of the fixed frame (11) and extend upward. The output end of the second stepper motor (51) is fixed with a rotary table (52) that can rotate around its central axis. The upper surface of the rotary table (52) is horizontally fixed with a first slide rail (521) near the output end of the second stepper motor (51). The upper surface of the rotary table (52) is provided with a slide (54) that can be close to or away from the output end of the second stepper motor (51), and the slide (54) slides in cooperation with the first slide rail (521).

5. A pipe bending device according to claim 4, characterized in that, The output end of the second stepper motor (51) is also fixed with a stop roller (53), and the bottom of the stop roller (53) sits on the top of the rotary table (52); The top of the slide (54) is longitudinally fixed with a mounting column (541), and an extrusion roller (542) that can cooperate with the stop roller (53) to clamp the pipe is installed on the outside of the mounting column (541).

6. A pipe bending device according to claim 4, characterized in that, The upper end of the rotary table (52) near the first slide rail (521) is fixed with a first hydraulic telescopic component (55) for driving the slide block (54) to slide along the first slide rail (521). The output end of the first hydraulic telescopic component (55) is fixedly connected to the slide block (54).

7. A pipe bending device according to claim 4, characterized in that, The upper end face of the fixed frame (11) is provided with a material blocking mechanism (6), which includes a base (61) fixed to the side of the rotating table (52), and a second slide rail (611) for limiting the position is fixed on the upper end face of the base (61). The top of the base (61) is provided with a stop block (63) that can move closer to or further away from the pipe fitting, and the stop block (63) slides in cooperation with the second slide rail (611).

8. A pipe bending device according to claim 7, characterized in that, A second hydraulic telescopic component (62) for driving the stop block (63) to slide along the second slide rail (611) is fixed at one end of the upper surface of the base (61).

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