Metal pipe bending forming mechanism

Abstract

The utility model relates to a pipe bending equipment technical field provides a kind of metal pipe bending forming mechanism, including pipe bender and the fixed seat and rotary seat installed on its upper end;The upper of the pipe bender is equipped with the protection core moving forward and backward, and it is metal pipe protection mechanism;The protection core includes core pipe and the multiple reinforcing balls evenly distributed outside it;The upper of the rear end of the pipe bender is equipped with rotating wheel, and the outside of the rotating wheel is circumferentially distributed with multiple shift blocks, and the shift block is engaged with adjacent reinforcing ball;The workbench below of the pipe bender is equipped with the storage pipe, and its rear end is curved to the upper of the pipe bender and the protection core coaxial by circuitousness upwards.The upper of the pipe bender is fixedly installed with shaft seat, including shaft sleeve and branch pipe.The protection core of storage pipe by moving forward and backward can be quickly penetrated into the inside of pipe body when switching metal pipe, and bend along with the bending of metal pipe, to resist the inner wall of metal pipe to avoid its stress to appear the condition of collapse.

Description

Technical Field

[0001] This utility model relates to the field of pipe bending equipment technology, and more specifically, to a metal pipe bending and forming mechanism. Background Technology

[0002] Metal tube bending is a common process in industrial manufacturing, widely used in automobile exhaust pipes, furniture frames, fitness equipment, and various fluid piping systems. Traditional tube bending equipment typically uses a clamping die to fix the tube and applies force using the bending die to cause the metal tube to undergo plastic deformation around a preset center, thereby obtaining a bent shape at a specific angle.

[0003] However, during the bending process, due to the tension on the outer side of the pipe wall and the compression on the inner side, the metal pipe is prone to cross-sectional collapse or elliptic deformation in the bending area, which affects its structural strength, fluid flow performance and appearance quality.

[0004] To overcome this problem, existing technologies mostly use built-in mandrels for support, that is, a rigid mandrel is inserted into the pipe before bending and removed after bending; however, inserting and removing the mandrel is cumbersome and affects processing efficiency, especially when in continuous production or changing different pipe materials.

[0005] To address the aforementioned problems, this application proposes a metal tube bending and forming mechanism. Utility Model Content

[0006] The purpose of this utility model is to provide a metal tube bending and forming mechanism that can effectively prevent metal tubes from being crushed when bent and has built-in protective components that can be quickly and automatically attached and detached from the metal tube.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] A metal tube bending and forming mechanism includes a tube bending machine and a fixed seat and a rotating seat installed at its upper end;

[0009] The pipe bending machine is equipped with a protective core that moves back and forth above it, which is a metal pipe protection mechanism;

[0010] The protective core includes a core tube and a plurality of reinforcing spheres evenly distributed on its outer side;

[0011] The pipe bending machine has a rotating wheel above its rear end, and multiple pavers are distributed circumferentially on the outer side of the rotating wheel. The pavers engage with adjacent reinforcing balls.

[0012] The tube bending machine has a receiving tube located below the workbench, with its rear end bent upwards and meandering to the top of the tube bending machine, coaxial with the protective core.

[0013] Preferably, a bearing seat, including a bushing and a branch pipe, is fixedly installed above the pipe bending machine.

[0014] Preferably, a retaining ring is integrally formed on the inner side of the junction of the bushing and the branch pipe, and the center of the retaining ring is a through hole.

[0015] Preferably, the pusher block has an arc-shaped structure, fits against the outer surface of the reinforcing ball, and is evenly distributed circumferentially on the outer side of the rotating wheel.

[0016] Preferably, the protective core is provided with a guide head and a guide seat at its front and rear ends, respectively, and the outer wall of the guide seat is embedded with a ball bearing.

[0017] Preferably, the protective core is a hollow tube with elastic ribs inside, and a spring is sleeved on the outside of the elastic ribs.

[0018] Preferably, the pipe bending machine is further provided with a metal pipe fixing mechanism above it for fixing the metal pipe during the pipe bending operation.

[0019] The beneficial effects of this utility model are:

[0020] 1. By setting a movable protective core inside the metal tube, the reinforcing balls evenly distributed on its outer wall continuously support the inner wall of the tube during bending, which significantly enhances the compressive strength of the bending area and effectively avoids the problem of the metal tube being crushed, deformed or elliptical when bending, thus ensuring the roundness and dimensional accuracy of the bent tube.

[0021] 2. Through the meshing transmission between the rotating wheel and the reinforcing ball on the protective core, the protective core can automatically move forward and backward inside the metal tube without the need for manual intervention to insert or remove the core rod, which greatly simplifies the operation process and is especially suitable for continuous production or frequent tube replacement operation scenarios, significantly improving processing efficiency.

[0022] 3. The storage tube is located below the pipe bending machine and extends to the rear of the equipment in a roundabout way, so that the protective core can be smoothly retracted and stored in a fixed area when not in use. This not only saves equipment space but also avoids the safety hazards caused by the exposed protective core. The overall structure is compact and easy to integrate into existing pipe bending equipment. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0025] Figure 2This is an exploded view of the metal tube protection mechanism of this utility model.

[0026] Figure 3 This is a schematic diagram of the combined structure of the metal tube protection mechanism, rotating wheel, and storage tube of this utility model;

[0027] Figure 4 This is a schematic diagram of the internal structure of the metal tube protection mechanism of this utility model;

[0028] The attached diagram lists the components represented by each number as follows:

[0029] In the diagram: 1. Pipe bending machine; 11. Fixed seat; 12. Rotating seat; 21. Protective core; 211. Core tube; 212. Reinforcing ball; 213. Guide head; 214. Guide seat; 2141. Ball bearing; 215. Elastic rib; 216. Spring; 22. Shaft seat; 221. Shaft sleeve; 222. Branch pipe; 23. Collection pipe; 24. Rotating wheel; 241. Pulley. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "opening", "top and bottom", "thickness", "top", "middle", "length", "inner" and "around" indicate the orientation or positional relationship only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] A metal tube bending and forming mechanism is provided for internal protection of the metal tube. By moving the protective core 21 of the receiving tube 23 back and forth, it can quickly penetrate into the tube body when switching metal tubes and bend with the bending of the metal tube, thereby resisting the inner wall of the metal tube to prevent it from being crushed by force.

[0033] In some embodiments, the specific structure of the metal tube bending and forming mechanism is as follows: Figure 1-4 As shown, it includes a pipe bending machine 1 and a fixed seat 11 and a rotating seat 12 installed above it. The metal pipe is inserted between the fixed seat 11 and the rotating seat 12. The bending process of the metal pipe is realized as the rotating seat 12 rotates around the fixed seat 11.

[0034] The metal tube protection mechanism includes a protective core 21, the main body of which is a core tube 211. Reinforcing balls 212 are arranged at equal intervals on the outer side of the core tube 211. The protective core 21 can bend along with the bending of the metal tube.

[0035] The reinforcing ball 212 abuts against the inner wall of the metal tube to maintain the roundness of its structure when the metal tube is bent.

[0036] Rotating wheels 24 are installed above the rear end of the pipe bending machine 1 and are distributed on both sides of the protective core 21. The two rotating wheels 24 rotate relative to each other.

[0037] Among them, a paddle 241 is fixed on the outer side of the rotating wheel 24, which fits against the outer surface of the reinforcing ball 212 and is inserted between adjacent reinforcing balls 212 to form a meshing structure;

[0038] Furthermore, a receiving pipe 23 is installed at the rear end of the pipe bending machine 1, including a bending section and a straight section;

[0039] Among them, a straight pipe extends out from the front of the bent section, is coaxial with the protective core 21, and the pipe opening is close to the rear side of the rotating wheel 24;

[0040] Understandably, the protective core 21 enters the receiving tube 23 under the drive of the rotating wheel 24, and is guided by the bent tube structure to the inside of the straight tube below to form a receiving tube, which facilitates the assembly and separation from the metal tube.

[0041] like Figure 1 and Figure 2 As shown, a shaft seat 22 is fixedly installed above the rear end of the pipe bending machine 1, which is a hollow cylinder that runs through the front and rear.

[0042] The bearing 22 includes a forward-extending bushing 221 and a rear-extending branch pipe 222. The bushing 221 is used to connect with the metal pipe, and the branch pipe 222 is used to increase the fitting range with the protective core 21.

[0043] In addition, a baffle extends from the inner side of the junction between the bushing 221 and the branch pipe 222 to block one end of the metal pipe;

[0044] It should be noted that the inner edge of the front opening of the bearing seat 22 is chamfered. The bearing seat 22 is used to position the metal tube so that it can quickly dock with the protective core 21.

[0045] like Figure 2 As shown, the front end of the protective core 21 is fixed with a guide head 213, which is used to guide the metal tube to avoid jamming when connecting to it.

[0046] Among them, the rear end of the protective core 21 is fixedly installed with a guide seat 214, which is used to guide the protective core 21 into the receiving tube 23 to avoid jamming.

[0047] Furthermore, ball bearings 2141 are embedded on the outer side of the guide seat 214 to abut against the inner wall of the receiving tube 23 to reduce frictional resistance.

[0048] like Figure 4 As shown, the protective core 21 is a hollow tube structure, and elastic ribs 215 are installed inside the hollow cavity;

[0049] It should be noted that the elastic rib 215 is made of high carbon spring steel or silicon manganese spring steel, and the front and rear ends of the elastic rib 215 are fixed to the guide head 213 and the guide seat 214 respectively.

[0050] Among them, a spring 216 is sleeved on the outer side of the elastic rib 215. After the protective core 21 bends with the metal tube, the spring 216 is in a pre-compression state to promote the protective core 21 to return to straightness after bending.

[0051] In some publicly available information, the specific usage methods of metal tube bending and forming mechanisms are as follows:

[0052] S1. Initially, the protective core 21 is located inside the receiving tube 23, and the guide head 213 is located in front of the rotating wheel 24;

[0053] S2. First, insert one end of the metal tube into the inside of the shaft seat 22 so that the metal tube is aligned with the protective core 21.

[0054] S3. Further, start the rotary motor (installed below the rear part of the main body of the pipe bending machine 1, and the upper end of the worktable is equipped with a transmission seat, with internal gear meshing, and the two gear shafts are connected to the rotary wheel 24) to drive the rotary wheel 24 to rotate. The rotating motion of the paddle 241 moves the reinforcing ball 212 to move the guide head 213 forward to the front end of the metal tube. At this time, the protective core 21 fills the interior of the metal tube, and the reinforcing ball 212 abuts against the inner wall of the metal tube.

[0055] S4. Further, start the rotary motor (installed below the worktable of the pipe bending machine 1, with its shaft extending above the fixed seat 11, and a connecting rod fixedly installed on one side of the shaft, which is fixedly connected to the shaft on the rotary seat 12) to drive the rotary seat 12 to rotate around the fixed seat 11, thereby bending the front end of the metal tube into the groove on the outside of the fixed seat 11.

[0056] It should be noted that, in order to perform pipe bending operations better, a fixing mechanism, such as a lifting clamp, can be installed above the pipe bending machine 1. The bottom surface of the clamp is provided with an arc-shaped surface to fit the metal pipe, and a rubber buffer pad is provided inside the arc-shaped surface to fix the metal pipe and prevent it from moving during the pipe bending operation.

[0057] This fixing mechanism is a conventional technical means in this field, so it will not be described in detail.

[0058] S5. After the metal tube is bent and shaped, the rotary motor is started again to drive the rotary wheel 24 to rotate. The reinforcing ball 212 is moved backward by the lever 241. After being guided by the guide seat 214, the rear end of the protective core 21 passes through the bent part of the receiving tube 23 and then detours from the top to the bottom of the workbench of the tube bending machine 1, so as to be stored inside the straight tube of the receiving tube 23. At this time, the guide head 213 is located in front of the rotary wheel 24.

[0059] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A metal tube bending and forming mechanism, characterized in that: Includes a pipe bending machine (1) and a fixed seat (11) and a rotating seat (12) installed at its upper end; The pipe bending machine (1) is equipped with a protective core (21) that moves back and forth, which is a metal pipe protection mechanism. The protective core (21) includes a core tube (211) and a plurality of reinforcing balls (212) evenly distributed on its outer side; The pipe bending machine (1) has a rotating wheel (24) above its rear end. Multiple paddles (241) are distributed circumferentially on the outer side of the rotating wheel (24). The paddles (241) mesh with the adjacent reinforcing balls (212). The tube bending machine (1) has a receiving tube (23) below its workbench, and its rear end bends upward and meanders to the top of the tube bending machine (1) and is coaxial with the protective core (21).

2. The metal tube bending and forming mechanism according to claim 1, characterized in that: The pipe bending machine (1) is fixedly installed with a bearing seat (22), including a bushing (221) and a branch pipe (222).

3. The metal tube bending and forming mechanism according to claim 2, characterized in that: The inner side of the junction of the bushing (221) and the branch pipe (222) has an integral retaining ring, and the center of the retaining ring is a through hole.

4. The metal tube bending and forming mechanism according to claim 1, characterized in that: The pusher block (241) has an arc-shaped structure, which fits against the outer side of the reinforcing ball (212) and is evenly distributed circumferentially on the outside of the rotating wheel (24).

5. The metal tube bending and forming mechanism according to claim 1, characterized in that: The protective core (21) has a guide head (213) and a guide seat (214) at its front and rear ends, respectively, and a ball bearing (2141) is embedded in the outer wall of the guide seat (214).

6. The metal tube bending and forming mechanism according to claim 1, characterized in that: The protective core (21) is a hollow tube with an elastic rib (215) inside, and a spring (216) is sleeved on the outside of the elastic rib (215).

7. The metal tube bending and forming mechanism according to claim 1, characterized in that: The pipe bending machine (1) is also provided with a metal pipe fixing mechanism above it, which is used to fix the metal pipe during the pipe bending operation.

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