Pipe bending machine

Abstract

The utility model relates to the technical field of pipe machining, in particular to a pipe bending machine which comprises a pipe bending machine body, a sliding groove, a driving block and a pressurizing assembly. A sliding groove is slidably formed in the pipe bending machine body and is of an L-shaped structure, an adjusting cavity is formed in the sliding groove, a driving block is slidably installed at the middle end of the adjusting cavity, an inclined groove is formed in the bottom end of the driving block, a pressurizing assembly is installed in the adjusting cavity, and when the sliding groove is matched with the pipe bending machine body to synchronously slide, the driving block promotes pushing pressure of the sliding groove to a workpiece through the pressurizing assembly. Jacking pressure on the workpiece is enhanced through the pressurizing assembly, so that wrinkles during bending are avoided, meanwhile, the workpiece is fixed through the pressurizing assembly, and scratches and wrinkles are avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of pipe processing, specifically a pipe bending machine. Background Technology

[0002] A pipe bending machine is a machine used for bending and shaping pipes. It can be divided into CNC pipe bending machines and hydraulic pipe bending machines, and is widely used in pipeline laying and repair in fields such as power construction, railway and highway construction, bridges, and shipbuilding.

[0003] When performing pipe bending, the workpiece is fixed on the pipe bending machine, and then the slide is driven to fix the workpiece. The workpiece and the slide slide slide synchronously. During the sliding process, the slide provides lifting pressure to the workpiece to assist in bending. After the bending is completed, the slide returns to its original position and leaves the workpiece.

[0004] During the assisted bending process, if the lifting pressure of the chute on the workpiece is insufficient, it will cause uneven stress on the workpiece, resulting in wrinkles in the bent tube and affecting the processing quality of the bent tube. At the same time, insufficient lifting pressure of the chute on the workpiece will cause the workpiece to slide, resulting in scratches and wrinkles on the workpiece.

[0005] To address this, existing technology has proposed a pipe bending machine that utilizes the cooperation between the bending assembly and the clamping assembly to achieve automatic termination of bending, simplifying the operation process and improving work efficiency. However, it still does not solve the problem of insufficient lifting pressure causing workpiece wrinkles.

[0006] In view of this, we propose a pipe bending machine. Utility Model Content

[0007] The purpose of this invention is to provide a pipe bending machine to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A pipe bending machine includes a machine body, a slide groove, a drive block, and a pressurizing component. The machine body has a slide groove slidably mounted on it, the slide groove being L-shaped. An adjustment cavity is formed in the slide groove, and a drive block is slidably mounted in the middle of the adjustment cavity. An inclined groove is formed at the bottom of the drive block. A pressurizing component is installed inside the adjustment cavity. When the slide groove slides synchronously with the machine body, the drive block, through the pressurizing component, increases the pushing pressure of the slide groove on the workpiece. When the workpiece is fixed to the machine body for processing, as the machine body drives the workpiece forward to bend, the slide groove moves forward close to the workpiece to fix it, simultaneously providing pushing pressure to assist the machine body in bending. When the slide groove approaches the workpiece, the workpiece squeezes the drive block inside the slide groove, and the drive block drives the pressurizing component. The pressurizing component compresses the workpiece, increasing the pushing pressure on the workpiece and simultaneously locking it to prevent slippage and wrinkles during bending.

[0010] Preferably, the pressurizing assembly includes a drive plate, a driven plate, a pressurizing block, a rotating ring, and a fixed wheel; the drive plate is slidably installed in the adjusting cavity, one end of the drive plate has an inclined groove that mates with the drive block, and the driven plate is slidably installed on the opposite side of the drive plate; the driven plate has an inclined groove that mates with the drive block; both the drive plate and the driven plate are provided with return springs on the inner wall of the adjusting cavity; drive grooves are linearly arranged on the drive plate and the driven plate, and pressurizing blocks are installed in the drive grooves; extrusion grooves are symmetrically opened on the other side of the drive plate, and the upper and lower sides of the drive plate are symmetrical. A rotating ring is arranged to cooperate with the extrusion groove; the top of the rotating ring is provided with a fixed wheel; the driving block slides into the adjustment cavity under the extrusion of the workpiece. During the sliding process, the driving block extrudes the driving plate and the driven plate to slide to both sides through the inclined groove. During the sliding process of the driving plate and the driven plate, the pressure block is pushed out through the driving groove to pressurize the workpiece, thereby increasing the pushing pressure on the workpiece. At the same time, when the driving plate slides to both sides, it pushes the rotating ring to slide along the circumference through the extrusion groove. The rotating ring drives the fixed block to extend and fix the tail end of the workpiece to prevent the workpiece from sliding and causing wrinkles to appear on the inner circle of the workpiece when bending.

[0011] Preferably, the pressure block is made of rubber material, which can undergo elastic deformation, thereby accumulating force and enhancing the pressure on the workpiece. At the same time, it will not cause large displacement of the workpiece, thus affecting the bending of the workpiece.

[0012] Preferably, the drive groove is an equilateral triangle structure. The equilateral triangle structure ensures the uniform force on the pressure block, thereby ensuring the stability of the pressure block's movement. At the same time, it enhances the pushing effect of the drive groove on the pressure block and prevents the pressure block from sliding in the opposite direction.

[0013] Preferably, the fixed wheel has a ring array of protrusions. The protrusions enhance the friction between the fixed wheel and the workpiece, thereby enhancing the locking force on the workpiece and preventing the workpiece from sliding backward during bending, which would lead to wrinkles.

[0014] Preferably, the driving block and the pressure block are both arc-shaped at the end near the workpiece, and the arc shape fits the surface of the workpiece, thereby avoiding an increase in the gap between the workpiece and the slide, which would lead to insufficient pushing pressure and poor bending effect.

[0015] Compared with the prior art, the beneficial effects of this utility model are: this utility model enhances the lifting pressure on the workpiece through the pressure-pressurizing component, thereby avoiding wrinkles during bending. At the same time, the pressure-pressurizing component fixes the workpiece, preventing the workpiece from slipping during bending, which would otherwise lead to scratches and wrinkles. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall slide groove of this utility model;

[0018] Figure 3 This is a half-sectional schematic diagram of the slide groove of this utility model;

[0019] Figure 4 For the present utility model Figure 3 A magnified view of point A;

[0020] Figure 5 This is a schematic diagram of the pressurization component of this utility model.

[0021] In the picture:

[0022] 1. Pipe bending machine body;

[0023] 2. Slide groove; 21. L-shaped structure; 22. Adjustment cavity;

[0024] 3. Drive block; 31. Inclined slot;

[0025] 4. Pressurizing assembly; 41. Drive plate; 411. Drive groove; 4111. Equilateral triangle structure; 412. Extrusion groove; 42. Driven plate; 43. Return spring; 44. Pressurizing block; 45. Rotary ring; 46. Fixed wheel. Detailed Implementation

[0026] 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.

[0027] like Figures 1 to 5 As shown, a pipe bending machine includes a pipe bending machine body 1, a slide groove 2, a drive block 3, and a pressurizing component 4. The slide groove 2, which is L-shaped 21, is slidably mounted on the pipe bending machine body 1. An adjustment cavity 22 is formed in the slide groove 2. The drive block 3 is slidably mounted in the middle of the adjustment cavity 22. An inclined groove 31 is formed at the bottom end of the drive block 3. The pressurizing component 4 is installed inside the adjustment cavity 22. When the slide groove 2 slides synchronously with the pipe bending machine body 1, the drive block 3, through the pressurizing component 4, promotes the movement of the slide groove 2 towards the workpiece. When the workpiece is fixed on the bending machine body 1 for processing, the bending machine body 1 drives the workpiece to slide forward for bending. The slide 2 moves forward and closes to the workpiece to fix it. At the same time, it provides pushing pressure to assist the bending machine body 1 in bending. When the slide 2 is close to the workpiece, the workpiece squeezes the drive block 3 in the slide 2. The drive block 3 drives the pressure component 4. The pressure component 4 squeezes the workpiece, increases the pushing pressure on the workpiece, and locks the workpiece to prevent it from sliding and causing bending wrinkles.

[0028] The drive plate 41 is slidably mounted in the adjustment cavity 22. One end of the drive plate 41 has an inclined groove 31 that mates with the drive block 3. A driven plate 42 is slidably mounted on the opposite side of the drive plate 41. The driven plate 42 has an inclined groove 31 that mates with the drive block 3. A return spring 43 is provided between the drive plate 41 and the driven plate 42 and the inner wall of the adjustment cavity 22. The return spring 43 is used to push the drive plate 41 and the driven plate 42 to reset when the slide 2 is separated from the workpiece, thereby pushing the drive block 3 to reset. The drive plate 41 and the driven plate 42 have linearly arranged drive grooves 411. A pressure block 44 is installed in the drive groove 411. The drive block 3 and the pressure block 44 are close to each other. The end near the workpiece is rounded, fitting snugly against the workpiece surface. This prevents an increase in the gap between the workpiece and the slide groove 2, which could lead to insufficient pushing pressure and poor bending effect. The pressure block 44 is made of rubber, which can undergo elastic deformation, accumulating force and enhancing the pressure applied to the workpiece. At the same time, it prevents the workpiece from displacing significantly, thus affecting bending. The drive groove 411 has an equilateral triangular structure 4111. This structure ensures uniform force distribution on the pressure block 44, guaranteeing the stability of its movement. It also enhances the pushing effect of the drive groove 411 on the pressure block 44, preventing it from sliding backward.

[0029] The drive plate 41 has symmetrically arranged extrusion grooves 412 on the other side. Rotary rings 45 that cooperate with the extrusion grooves 412 are symmetrically arranged on the upper and lower sides of the drive plate 41. The top of the rotating ring 45 is provided with a fixed wheel 46. The fixed wheel 46 has a ring array of protrusions. The protrusions enhance the friction between the fixed wheel 46 and the workpiece, thereby enhancing the locking force on the workpiece and preventing the workpiece from sliding backward during bending, which would lead to wrinkles. The drive block 3 slides into the adjustment cavity 22 under the pressure of the workpiece. During the sliding process, the drive block 3 squeezes the drive plate 41 and the driven plate 42 to slide to both sides through the inclined groove 31. During the sliding process, the drive plate 41 and the driven plate 42 push the pressure block 44 to extend through the drive groove 411 to press the workpiece, thereby enhancing the pushing pressure on the workpiece. At the same time, when the drive plate 41 slides to both sides, it pushes the rotating ring 45 to slide around the circumference through the extrusion groove 412. The rotating ring 45 drives the fixed block to extend and fix the tail end of the workpiece, preventing the workpiece from sliding and causing wrinkles to appear on the inner circle of the workpiece during bending.

[0030] In this embodiment of the pipe bending machine, when the pipe bending machine body 1 is bending, the slide groove 2 is close to the workpiece to assist in bending. At this time, the workpiece pressing drive block 3 slides into the adjustment cavity 22. The drive block 3 pushes the drive plate 41 and the driven plate 42 to slide to both sides. When the drive plate 41 and the driven plate 42 slide to both sides, the drive groove 411 pushes the pressure block 44 out to enhance the tightness of the fit between the workpiece and the pipe bending machine body 1, thereby enhancing the bending effect. At the same time, the drive plate 41 pushes the rotating ring 45 to slide along the circumference. The rotating ring 45 drives the fixed wheel 46 to extend and fix the workpiece. There are two fixed wheels 46, one above the other, to ensure the symmetry of the force on the workpiece, thereby ensuring the stability of the workpiece. At the same time, the pressure return spring 43 is compressed and retracted during the sliding process of the drive plate 41 and the driven plate 42.

[0031] After a bend is completed, the slide 2 returns to its original position and no longer contacts the workpiece. At this time, the return spring 43 is no longer compressed by external force. The return spring 43 pushes the drive plate 41 and the driven plate 42 to return to their original positions. The drive plate 41 and the driven plate 42 push the pressure block 44 to return to its original position. At the same time, the rotating ring 45 is no longer compressed by the drive plate 41. The workpiece pushes the fixed wheel 46, which in turn drives the rotating ring 45 to return to its original position.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pipe bender characterized by: The bending machine body (1), the sliding chute (2), the driving block (3) and the pressurizing assembly (4) are included. The sliding chute (2) is L-shaped structure (21), the adjusting cavity (22) is set up on the sliding chute (2), the driving block (3) is slidably installed in the adjusting cavity (22), the oblique slot (31) is set up in the bottom of the driving block (3), the pressurizing assembly (4) is installed in the adjusting cavity (22), when the sliding chute (2) is synchronized with the bending machine body (1), the driving block (3) promotes the pushing pressure of the sliding chute (2) to the workpiece through the pressurizing assembly (4).

2. The pipe bender of claim 1, wherein: The pressurizing assembly (4) includes the driving plate (41), the driven plate (42), the reset spring (43), the pressurizing block (44), the swivel ring (45) and the fixed wheel (46). The driving plate (41) is slidably installed in the adjusting cavity (22), the oblique slot (31) is set up in one end of the driving plate (41), the driven plate (42) is slidably installed on the opposite side of the driving plate (41). The oblique slot (31) is set up on the driven plate (42). The reset spring (43) is arranged on the inner wall of the adjusting cavity (22) and the driving plate (41) and the driven plate (42). The linear array of the driving slot (411) is set up on the driving plate (41) and the driven plate (42), the pressurizing block (44) is installed in the driving slot (411). The extrusion slot (412) is set up on the other side of the driving plate (41), the swivel ring (45) is arranged on the driving plate (41) and the driven plate (42) and matched with the extrusion slot (412). The fixed wheel (46) is arranged on the top of the swivel ring (45).

3. The pipe bender of claim 2, wherein: The pressurizing block (44) is made of rubber material.

4. The pipe bender of claim 2, wherein: The driving slot (411) is a regular triangle structure (4111).

5. The pipe bender of claim 2, wherein: The convex points are annularly arranged on the fixed wheel (46).

6. The pipe bender of claim 3, wherein: The driving block (3) and the pressurizing block (44) are arc-shaped near the workpiece.

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