Pipe bending machine

Abstract

The utility model relates to bending equipment, in particular to a pipe bending machine which comprises a machine table provided with a hydraulic cylinder, a movable rack, a positioning clamp, a fixed roller and a rotating arm. The hydraulic cylinder drives the movable rack to move; the rotating arm is provided with an intermittent gear meshed with the movable rack; the axis of the fixed roller is coaxial with a rotating shaft of the rotating arm, and a bending roller is arranged at the free end of the rotating arm; a pipe bending channel is arranged between the bending roller and the fixed roller; and the positioning clamp is provided with a pipe positioning channel communicated with the bending channel. Compared with traditional pipe bending equipment, the pipe bending machine has the advantages that machining efficiency is improved, pipe bending precision is improved, and consistency of machined products is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bending equipment, especially a pipe bending machine. BACKGROUND

[0002] Different shapes of pipes are used in furniture production and manufacturing, among which the bent pipe is very popular in the application of products such as tables, chairs and cabinets. The bent pipe needs to use a special pipe bending equipment in the production process, and the structure can refer to the Chinese utility model patent with the application number 202221314702.3 and the name of a furniture iron pipe corner bending device. The existing bending equipment has low control precision for the bending angle of the pipe, which leads to the need for secondary bending processing to obtain a finished product with high structural consistency, which not only wastes time and effort but also has high cost. UTILITY MODEL CONTENTS

[0003] The technical problem to be solved by the utility model is to provide a pipe bending machine with high bending precision.

[0004] In order to solve the above technical problem, the utility model adopts the technical scheme of a pipe bending machine, which comprises:

[0005] A machine table is provided with a hydraulic cylinder, a movable rack, a positioning clamp, a fixed roller and a rotating arm.

[0006] The hydraulic cylinder drives the movable rack to move.

[0007] The rotating arm is provided with an intermittent gear meshing with the movable rack.

[0008] The axis of the fixed roller and the rotating shaft of the rotating arm are coaxial, and the free end of the rotating arm is provided with a bending roller.

[0009] The bending roller and the fixed roller have a pipe bending channel therebetween.

[0010] The positioning clamp is provided with a pipe positioning channel communicating with the bending channel.

[0011] Further, the machine table is provided with a transmission shaft, the transmission shaft is provided with coaxially arranged first and second gears, the movable rack comprises first and second racks, the hydraulic cylinder drives the first rack to move, the first rack is meshed with the first gear, and the second rack is meshed with the second gear and the intermittent gear respectively.

[0012] Further, the machine table is provided with a guide wheel supporting and limiting the movable rack.

[0013] Further, the positioning clamp comprises a gas cylinder, a pressing block and a fixed block, the gas cylinder and the fixed block are fixedly arranged on the machine table, the gas cylinder is connected with the pressing block, and the pressing block and the fixed block form the pipe positioning channel therebetween.

[0014] Furthermore, the machine is equipped with a limit block, which is located on the axis of the pipe positioning channel.

[0015] Furthermore, the limit block is slidably mounted on the machine base, and the limit block is locked to the machine base by fasteners.

[0016] Furthermore, the machine is equipped with two sets of bending assemblies, each set of bending assemblies including a positioning fixture, a fixed roller and a rotating arm.

[0017] Furthermore, the machine is equipped with a feeding channel, which is coaxially arranged with the pipe positioning channel.

[0018] Furthermore, the machine tool is equipped with a protective cover, which covers the hydraulic cylinder, moving rack, positioning fixture, fixed roller and rotating arm.

[0019] Furthermore, the machine is equipped with a robotic arm, which is used to assist in unloading the bent pipes.

[0020] The beneficial effects of this utility model are as follows: A pipe bending machine, in use, involves passing a straight pipe sequentially through a pipe positioning channel and a pipe bending channel. After activating the hydraulic cylinder, the hydraulic cylinder drives a moving rack, which in turn drives a rotating arm to rotate via intermittent gears. The bending roller on the rotating arm rotates accordingly, and during rotation, the bending roller cooperates with a fixed roller to bend the straight pipe at a preset angle to obtain a bent pipe. Compared with traditional pipe bending equipment, the pipe bending machine provided by this utility model improves processing efficiency while enhancing pipe bending accuracy, ensuring the consistency of processed products. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the pipe bending machine.

[0022] Figure 2 Another structural schematic diagram of a pipe bending machine;

[0023] Figure 3 This is the front view of the pipe bending machine;

[0024] Figure 4 This is a top view of a pipe bending machine;

[0025] Label Explanation:

[0026] 1. Machine base; 11. Guide wheel; 2. Hydraulic cylinder; 3. Moving rack; 31. First rack; 32. Second rack; 4. Positioning fixture; 41. Pipe positioning channel; 42. Cylinder; 43. Clamping block; 44. Fixing block; 5. Fixing roller; 51. Pipe bending channel; 6. Rotating arm; 61. Intermittent gear; 62. Bending roller; 7. Drive shaft; 71. First gear; 72. Second gear. Detailed Implementation

[0027] In order to explain the technical content of the utility model, the purposes and effects achieved, the following will be described in conjunction with the embodiments and the accompanying drawings.

[0028] Please refer to Figures 1 to 4 The utility model discloses a pipe bending machine, which comprises:

[0029] The machine table 1 is provided with a hydraulic cylinder 2, a movable rack 3, a positioning clamp 4, a fixed roller 5 and a rotating arm 6.

[0030] The hydraulic cylinder 2 drives the movable rack 3 to move.

[0031] The rotating arm 6 is provided with an intermittent gear 61 engaged with the movable rack 3.

[0032] The axis of the fixed roller 5 and the rotating shaft of the rotating arm 6 are coaxial, and the free end of the rotating arm 6 is provided with a bending roller 62.

[0033] The bending roller 62 and the fixed roller 5 have a pipe bending channel 51 therebetween.

[0034] The positioning clamp 4 is provided with a pipe positioning channel 41 communicated with the bending channel.

[0035] From the above description, it can be seen that the pipe bending machine has the following beneficial effects: when used, the straight pipe is sequentially inserted through the pipe positioning channel 41 and the pipe bending channel 51, after the hydraulic cylinder 2 is started, the hydraulic cylinder 2 drives the movable rack 3 to move and then drives the rotating arm 6 to rotate through the intermittent gear 61, and the bending roller 62 on the rotating arm 6 rotates, and the bending roller 62 is bent at a preset angle in cooperation with the fixed roller 5 in the rotating process to obtain a bent pipe. The pipe bending machine provided by the utility model, compared with the traditional pipe bending equipment, improves the processing efficiency, improves the pipe bending precision, and ensures the consistency of the processed products.

[0036] In an optional embodiment, the machine table 1 is provided with a transmission shaft 7, the transmission shaft 7 is provided with a first gear 71 and a second gear 72 coaxially arranged, the movable rack 3 comprises a first rack 31 and a second rack 32, the hydraulic cylinder 2 drives the first rack 31 to move, the first rack 31 is engaged with the first gear 71, and the second rack 32 is engaged with the second gear 72 and the intermittent gear 61 respectively.

[0037] From the above description, it can be seen that the first rack 31 drives the second rack 32 to move through the transmission shaft 7 provided with the first gear 71 and the second gear 72, which is more conducive to structural arrangement, and different bending angles can be adapted by designing different transmission arms of the first gear 71 and the second gear 72.

[0038] In an optional embodiment, the machine table 1 is provided with a guide wheel 11 supporting and limiting the movable rack 3.

[0039] From the above description, the function of the guide roller is to support and limit the movement of the rack 3 to ensure the bending accuracy of the pipe.

[0040] In an optional embodiment, the positioning clamp 4 comprises a cylinder 42, a pressing block 43 and a fixed block 44, the cylinder 42 and the fixed block 44 are fixedly arranged on the machine table 1, the cylinder 42 is connected with the pressing block 43, and the pressing block 43 and the fixed block 44 form a pipe positioning channel 41.

[0041] From the above description, the pressing block 43 is driven by the cylinder 42 to move and cooperate with the fixed block 44 to clamp the pipe to achieve fixation.

[0042] In an optional embodiment, the machine table 1 is provided with a limiting block, and the limiting block is located on the axis of the pipe positioning channel 41.

[0043] From the above description, the limiting block is used for positioning the end of the pipe.

[0044] In an optional embodiment, the limiting block is slidingly arranged on the machine table 1, and the limiting block is locked with the machine table 1 by fasteners.

[0045] From the above description, the distance between the limiting block and the pipe positioning channel 41 determines the bending position on the pipe.

[0046] In an optional embodiment, the machine table 1 is provided with two bending assemblies, and each bending assembly comprises one positioning clamp 4, one fixed roller 5 and one rotating arm 6.

[0047] From the above description, the advantage of the above design is that two pipes can be processed simultaneously on one device, improving the processing efficiency.

[0048] In an optional embodiment, the machine table 1 is provided with a feeding channel, and the feeding channel is coaxially arranged with the pipe positioning channel 41.

[0049] From the above description, the feeding channel is used to feed and convey the pipe into the pipe positioning channel 41, and the existing feeding mechanism can be adaptively adjusted.

[0050] In an optional embodiment, the machine table 1 is provided with a protective cover, and the protective cover covers the hydraulic cylinder 2, the movable rack 3, the positioning clamp 4, the fixed roller 5 and the rotating arm 6.

[0051] From the above description, the protective cover plays a role of isolation and protection, improving the production safety.

[0052] In an optional embodiment, the machine table 1 is provided with a mechanical arm, and the mechanical arm is used for assisting the unloading of the bent pipe.

[0053] From the above description, the mechanical arm is used to complete the automatic feeding of the pipe material, and the model, specification and the like of the mechanical arm can be selected independently according to the size specification and processing requirements of the processed pipe material.

[0054] Please refer to Figures 1 to 4 The embodiment one of the utility model is: a pipe bending machine, comprising:

[0055] The machine table 1 is provided with a hydraulic cylinder 2, a movable rack 3, a positioning clamp 4, a fixed roller 5 and a rotating arm 6.

[0056] The movable rack 3 is driven to move by the hydraulic cylinder 2.

[0057] The rotating arm 6 is provided with an intermittent gear 61 engaged with the movable rack 3.

[0058] The axis of the fixed roller 5 and the rotating shaft of the rotating arm 6 are coaxial, and the free end of the rotating arm 6 is provided with a bending roller 62.

[0059] The bending roller 62 and the fixed roller 5 have a pipe bending channel 51 therebetween.

[0060] The positioning clamp 4 is provided with a pipe positioning channel 41 communicated with the bending channel.

[0061] The machine table 1 is provided with a transmission shaft 7, the transmission shaft 7 is provided with coaxially arranged first and second gears 71 and 72, the movable rack 3 comprises first and second racks 31 and 32, the first rack 31 is driven to move by the hydraulic cylinder 2, the first rack 31 is engaged with the first gear 71, and the second rack 32 is engaged with the second gear 72 and the intermittent gear 61 respectively. The machine table 1 is provided with a guide wheel 11 supporting and limiting the movable rack 3. The positioning clamp 4 comprises a cylinder 42, a pressing block 43 and a fixed block 44, the cylinder 42 and the fixed block 44 are fixedly arranged on the machine table 1, the cylinder 42 is connected with the pressing block 43, and the pipe positioning channel 41 is formed between the pressing block 43 and the fixed block 44. The machine table 1 is provided with a limiting block located on the axis of the pipe positioning channel 41. The limiting block is slidingly arranged on the machine table 1, and the limiting block is locked with the machine table 1 by fasteners. The machine table 1 is provided with two bending assemblies, each bending assembly comprising a positioning clamp 4, a fixed roller 5 and a rotating arm 6. The machine table 1 is provided with a feeding channel coaxially arranged with the pipe positioning channel 41. The machine table 1 is provided with a protective cover covering the hydraulic cylinder 2, the movable rack 3, the positioning clamp 4, the fixed roller 5 and the rotating arm 6. The machine table 1 is provided with a mechanical arm for assisting the feeding of the bent pipe material.

[0062] In summary, the pipe bending machine, when using, the straight pipe is sequentially threaded through the pipe positioning channel and the pipe bending channel, after the hydraulic cylinder is started, the hydraulic cylinder drives the movement of the rack and then drives the rotation of the rotating arm through the intermittent gear, the bending roller on the rotating arm rotates, and the bending roller is bent to a preset angle in cooperation with the fixed roller in the rotating process to obtain the bent pipe. The pipe bending machine provided by the utility model compared with the traditional pipe bending equipment improves the pipe bending precision while improving the processing efficiency, and guarantees the consistency of the processed products.

[0063] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent transformation, direct or indirect application in the related technical field by using the utility model specification and the attached drawings is also included in the patent protection range of the utility model.

Claims

1. A pipe bender characterized by comprising: The utility model relates to a pipe bending machine, comprising: a machine table provided with a hydraulic cylinder, a movable rack, a positioning clamp, a fixed roller and a rotating arm; the hydraulic cylinder drives the movable rack to move; the rotating arm is provided with an intermittent gear meshing with the movable rack; the axis of the fixed roller and the rotating shaft of the rotating arm are coaxial, and the free end of the rotating arm is provided with a bending roller; the bending roller and the fixed roller have a pipe bending channel therebetween; the positioning clamp is provided with a pipe positioning channel communicating with the bending channel.

2. The pipe bender of claim 1, wherein The machine table is provided with a transmission shaft, the transmission shaft is provided with coaxially arranged first and second gears, the movable rack comprises first and second racks, the hydraulic cylinder drives the first rack to move, the first rack is meshed with the first gear, and the second rack is meshed with the second gear and the intermittent gear respectively.

3. The pipe bender of claim 1, wherein The machine table is provided with guide wheels supporting and limiting the movable rack.

4. The pipe bender of claim 1, wherein The positioning clamp comprises a pneumatic cylinder, a pressing block and a fixed block, the pneumatic cylinder and the fixed block are fixedly arranged on the machine table, the pneumatic cylinder is connected with the pressing block, and the pressing block and the fixed block form the pipe positioning channel.

5. The pipe bender of claim 1, wherein The machine table is provided with a limiting block on the axis of the pipe positioning channel.

6. The pipe bender of claim 5, wherein, The limiting block is slidingly arranged on the machine table and is locked to the machine table by fasteners.

7. The pipe bender of claim 1, wherein The machine table is provided with two bending assemblies, each bending assembly comprising a positioning clamp, a fixed roller and a rotating arm.

8. The pipe bender of claim 1, wherein, The machine table is provided with a feeding channel coaxially arranged with the pipe positioning channel.

9. The pipe bender of claim 1, wherein, The machine table is provided with a protective cover covering the hydraulic cylinder, the movable rack, the positioning clamp, the fixed roller and the rotating arm.

10. The pipe bender of claim 1, wherein, The machine table is provided with a mechanical arm for assisting the unloading of the bent pipe.

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