Straight-seam welded pipe straightening support device

Abstract

The utility model discloses a straight seam welded pipe straightening support device belongs to welded pipe processing equipment technical field, including base and setting on the base straightening mechanism, and straightening mechanism includes electric push rod, sliding block, has the sliding block of upper narrow lower wide wedge structure, the straightening block fixed in the top of sliding block and the straightening bar of symmetrical setting, the straightening bar rotation is connected in the mount, its bottom is pasted in the lateral wall of sliding block, when working, electric push rod drive sliding block pushes sliding block and moves upward, and the straightening block of sliding block top straightens the bottom of welding pipe, simultaneously, and the wedge lateral wall of sliding block forces the bottom of straightening bar and opens outward, makes its top and gathers to the inside to hold and straighten the both sides of welding pipe. The utility model discloses through single power source to realize the three point linkage straightening of welding pipe, has solved the problem of complicated structure, high cost, inconvenient adjustment of straightening device in the prior art, has the advantages such as strong self -adaptability, good synchronism.

Description

Technical Field

[0001] This utility model relates to the field of welded pipe processing equipment technology, and in particular to a straightening and support device for straight seam welded pipes. Background Technology

[0002] Straight seam welded pipe, as an important industrial pipe material, is widely used in construction, machinery, chemical and other fields. During the production process, due to factors such as welding thermal stress and uneven cooling, the produced welded pipes often undergo bending deformation, affecting their performance and subsequent processing accuracy. Therefore, straightening the welded pipes is one of the key processes to ensure product quality.

[0003] Currently, mechanical straightening is commonly used in industry to eliminate bending in welded pipes. Conventional straightening devices typically use multiple straightening rollers or blocks to apply forces to the welded pipe from different directions, causing plastic deformation in the opposite direction and thus achieving straightening. To effectively straighten the bottom and sides of the welded pipe, such devices usually require forces in at least three directions.

[0004] In achieving the aforementioned multi-directional straightening, existing technical solutions often adopt a relatively straightforward design approach: equipping each straightening component (such as the bottom lifting block and the side clamping blocks) with an independent drive source, for example, using multiple hydraulic cylinders or electric push rods to control their movements separately. However, this design, which equips each movement with an independent drive source, inevitably leads to a large and complex mechanical structure for the entire straightening device.

[0005] Meanwhile, the presence of multiple drive sources places higher demands on the control system, requiring the development of complex synchronization and coordination programs to ensure precise coordination of each straightening action. This not only increases the manufacturing cost of the equipment but also raises the difficulty of subsequent debugging and maintenance. Especially when handling welded pipes of different diameters, operators may need to independently adjust the stroke or position of each drive mechanism, a cumbersome and time-consuming process that severely impacts production efficiency and the equipment's flexibility.

[0006] Therefore, this utility model proposes a straightening support device for straight seam welded pipes to overcome the shortcomings of the prior art. Utility Model Content

[0007] To overcome the above shortcomings, this utility model provides a straight seam welded pipe straightening support device, which aims to improve the problems of complex structure, cumbersome control and high cost caused by the need for multiple independent drive sources in the existing straight seam welded pipe straightening support device.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a straight seam welded pipe straightening support device, comprising: a base and a straightening mechanism, wherein the straightening mechanism is disposed on the base; The straightening mechanism includes a support frame, an electric push rod, a mounting frame, a slider, a sliding block, a straightening rod, a connecting block, and a straightening block. The support frame and the mounting frame are both fixedly connected to the base. The electric push rod is fixedly installed inside the support frame. The slider is fixedly connected to the output end of the electric push rod. The sliding block is located above the slider and abuts against the top of the slider. The sliding block has a structure that is narrower at the top and wider at the bottom. The straightening block is fixedly connected to the top of the sliding block via the connecting block. The straightening rod is symmetrically rotatably connected to the side wall of the mounting frame, and the bottom of the straightening rod is in contact with the side wall of the sliding block.

[0009] Preferably, the straight seam welded pipe straightening support device further includes a conveying mechanism, which is fixedly connected to the top of the base for conveying the welded pipe, and the straightening mechanism is disposed on one side of the conveying path of the conveying mechanism.

[0010] Preferably, the conveying mechanism includes a fixed frame, a connecting column, and a conveying roller. The fixed frame is fixedly connected to the top of the base, and the conveying roller is rotatably connected to the inside of the fixed frame with the connecting column as the pivot.

[0011] Preferably, the straight seam welded pipe straightening support device further includes a connecting ring, which is disposed above the feed end of the conveying mechanism for guiding the welded pipe.

[0012] Preferably, the straightening mechanism further includes a slide, which is fixedly connected to the support frame, and the slider is slidably connected inside the slide.

[0013] Preferably, the bottom of the sliding block has an arc-shaped structure.

[0014] Preferably, the straightening mechanism further includes a spring connected between the bottoms of the two straightening rods.

[0015] Preferably, the welded pipe is housed between the top of the straightening block and the tops of the two straightening rods.

[0016] This utility model has the following beneficial effects: 1. In this utility model, by setting a straightening mechanism driven by a single electric push rod and including a wedge-shaped sliding block and a linkage straightening rod, the problem of complex structure, cumbersome control and high cost caused by the need to set multiple independent drive sources in the existing straightening device is solved, and the effect of simplifying the overall structure of the equipment and reducing manufacturing costs and maintenance difficulty is achieved.

[0017] 2. This utility model drives the wedge-shaped sliding block by controlling the stroke of a single electric push rod. By utilizing the linkage between its wedge-shaped side and the straightening rod, it solves the problems of complex adjustment process and poor versatility when changing the diameter of the pipe in the existing straightening device. It achieves the effect of conveniently and quickly adapting to welded pipes of different diameters and performing effective straightening. Attached Figure Description

[0018] Figure 1 A perspective view of the straightening and support device for straight seam welded pipe proposed in this utility model; Figure 2 This is a schematic diagram of the straightening rod of the straightening support device for straight seam welded pipe proposed in this utility model; Figure 3 This is a schematic diagram of the mounting frame for the straight seam welded pipe straightening support device proposed in this utility model; Figure 4 for Figure 2 Enlarged view of point A in the middle; Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0019] Legend: 1. Base; 2. Connecting ring; 3. Conveying mechanism; 301. Fixing frame; 302. Connecting column; 303. Conveying roller; 4. Welded pipe; 5. Straightening mechanism; 501. Mounting frame; 502. Slide carriage; 503. Slider; 504. Support frame; 505. Electric push rod; 506. Straightening rod; 507. Sliding block; 508. Connecting block; 509. Straightening block; 510. Spring. Detailed Implementation

[0020] 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.

[0021] Reference Figures 1-5 This utility model provides a straight seam welded pipe straightening support device, which aims to solve the problems of existing straight seam welded pipe straightening devices having complex structures, requiring multiple drive sources to control straightening actions in different directions, resulting in high equipment costs and inconvenience in adjusting to different pipe diameters.

[0022] Specifically, it includes a base 1 and a straightening mechanism 5 disposed on the base 1. The base 1 serves as the mounting base for the entire device, providing a stable mounting platform and support for each component of the device. The straightening mechanism 5 is used to apply a straightening force to the welded pipe 4 that needs to be straightened during operation, so as to restore the straightness of the welded pipe 4.

[0023] The straightening mechanism 5 includes a support frame 504, an electric push rod 505, a mounting frame 501, a slider 503, a sliding block 507, a straightening rod 506, a connecting block 508, and a straightening block 509. The support frame 504 and mounting frame 501 are fixedly connected to the base 1 by welding or bolts, providing a solid mounting foundation for the subsequent moving parts of the straightening mechanism 5. The electric push rod 505, as the sole power source, is fixedly installed inside the support frame 504. The slider 503 is fixedly connected to the output end of the electric push rod 505, used to transmit the linear driving force generated by the electric push rod 505 to the subsequent structure. The sliding block 507 is located above the slider 503 and abuts against the top of the slider 503. The overall structure of the sliding block 507 is a wedge-shaped body, narrow at the top and wide at the bottom. This is a key linkage conversion component for decomposing a vertical motion into three-directional straightening actions. The straightening block 509 is fixedly connected to the slider 509 via the connecting block 508. The top of block 507 is used to directly act on the bottom of welded pipe 4 when sliding block 507 moves upward. Two straightening rods 506 are symmetrically arranged on both sides of sliding block 507. The middle part of each straightening rod 506 is rotatably connected to the side wall of mounting bracket 501 through a pin, forming a lever that can swing around mounting bracket 501. The bottom of each straightening rod 506 is always in contact with the wedge-shaped side wall of sliding block 507. This structural combination means that when electric push rod 505 drives slider 503 to push sliding block 507 upward, the upward movement of sliding block 507 not only straightens the bottom of welded pipe 4 upward through straightening block 509, but also the wedge-shaped side wall of sliding block 507 pushes the bottom of the two straightening rods 506 outward in sync. Using the lever principle, the tops of the two straightening rods 506 are brought inward, thereby clamping and straightening the two sides of welded pipe 4. Finally, the three-point linkage straightening of the bottom and two sides of welded pipe 4 is completed by the driving action.

[0024] To achieve automated feeding and stable support of the welded pipe 4 to be straightened, the device also includes a conveying mechanism 3. The conveying mechanism 3 is fixedly connected to the top of the base 1 along the length of the base 1, forming a conveying path that runs through the equipment. The aforementioned straightening mechanism 5 is set on one side of the conveying path of the conveying mechanism 3. This layout allows the welded pipe 4 to be continuously or stepwise conveyed on the conveying mechanism 3, and straightened by the straightening mechanism 5 when it reaches the designated position, achieving efficient coordination of conveying and straightening functions. Specifically, the conveying mechanism 3 includes a fixed frame 301, a connecting column 302, and multiple conveying rollers 303. The fixed frame 301 is usually a long strip frame structure, which is welded or The bolts are fixed to the top of the base 1. The two side walls of the fixing frame 301 can provide lateral limiting and guiding for the welded pipe 4 placed on it, preventing the welded pipe 4 from shifting during the conveying process. Multiple connecting columns 302 are horizontally fixed inside the fixing frame 301, serving as the mounting shafts for the conveyor rollers 303 and providing support for the rotation of the conveyor rollers 303. Multiple conveyor rollers 303 are rotatably connected to the inside of the fixing frame 301 with the corresponding connecting columns 302 as the shafts and by means of bearings. The upper surfaces of all conveyor rollers 303 together form a bearing plane to support the welded pipe 4 and drive the conveyor rollers 303 to rotate synchronously through an external transmission device, relying on friction to drive the welded pipe 4 to move forward.

[0025] To facilitate operators in accurately placing the welded pipe 4 into the starting position of the conveying mechanism 3, the device also includes a connecting ring 2. The connecting ring 2 is fixedly mounted above the feed end of the conveying mechanism 3 by a bracket. The inner diameter of the connecting ring 2 is slightly larger than the maximum outer diameter of the welded pipe 4 to be straightened, forming a clear guide inlet. Operators only need to align one end of the welded pipe 4 and pass it through the connecting ring 2 to ensure that the welded pipe 4 can fall smoothly on the center line of the conveying roller 303, thus improving the efficiency and accuracy of feeding.

[0026] The straightening mechanism 5 also includes a slide 502, which is fixedly connected to the support frame (504). The slide 502 has a precision groove that matches the shape of the slider 503. The slider 503 is slidably housed in the groove of the slide 502. This guide rail-type sliding fit provides precise guidance for the reciprocating motion of the slider 503, effectively resisting the lateral force that may be generated when transmitting thrust, preventing the slider 503 from deflecting or shaking, thereby ensuring that the force applied by the slider 503 to the slider block 507 is always stable and vertically upward, which is crucial for ensuring the final straightening accuracy.

[0027] The bottom of the sliding block 507 is machined into an arc surface structure. When the flat top surface of the slider 503 moves upward and contacts the sliding block 507, the contact form between the plane and the arc surface can be point contact or line contact. Compared with the contact between planes, this contact method can better adapt to the small angular deviations that may exist during the installation process, and has a certain self-aligning function. At the same time, it can effectively disperse the contact stress, reduce the sliding friction resistance, and make the starting and rising process of the sliding block 507 smoother and more efficient, reducing energy loss and component wear.

[0028] The straightening mechanism 5 also includes a spring 510, which is preferably a tension spring. The two ends of the spring 510 are connected to the bottom of the two straightening rods 506 by hooks or pins, and are always in a certain pre-tension state. The spring 510 continuously provides an elastic restoring force that brings the bottoms of the two straightening rods 506 closer together. When the straightening action is completed and the push rod of the electric push rod 505 retracts, the pushing force applied to the sliding block 507 disappears. At this time, under the combined action of the weight of the welded pipe 4 and the strong tension of the spring 510, the sliding block 507 can quickly and reliably descend to the initial position. The descent of the sliding block 507 causes the bottoms of the two straightening rods 506 to retract inward, thereby causing their tops to open outward, thus quickly releasing the clamping state on the welded pipe 4 and preparing for the next movement of the welded pipe 4 or the next straightening operation.

[0029] When the device is performing a specific straightening operation, the welded pipe 4 is accurately fed into the working area of ​​the straightening mechanism 5 by the conveying mechanism 3, and is stably housed between the top of the straightening block 509 and the top of the two straightening rods 506. At this time, the pipe wall of the welded pipe 4 is in contact with the surfaces of these three components. The straightening block 509 constitutes the core support and straightening point for the bottom of the welded pipe 4, while the tops of the two straightening rods 506 respectively constitute the clamping and straightening points for the left and right sides of the welded pipe 4.

[0030] Working principle: When using this equipment, first place the welded pipe 4 that needs to be straightened on the conveying mechanism 3, align it with the connecting ring 2, and then push the welded pipe 4 forward through the conveying mechanism 3. The straightening mechanism 5 will then straighten the pipe. When the welded pipe 4 is conveyed by the conveying mechanism 3, a fixed frame 301 is fixedly connected to the top of the base 1. The welded pipe 4 is placed above the conveying roller 303 set inside the fixed frame 301. The fixed frame 301 limits the welded pipe 4 to prevent it from slipping and falling. The connecting column 302 and the conveying roller 303 rotate synchronously inside the fixed frame 301 to drive the welded pipe 4 forward. When the straightening mechanism 5 is used to straighten the welded pipe 4, a support frame 504 is fixedly connected to the side wall of the base 1. The electric push rod 505 fixed inside the support frame 504 is activated. The slider 503 fixedly connected to the output end of the electric push rod 505 is driven by the electric push rod 505 and slides in the slide 502. When the slider 503 slides forward, it pushes up the sliding block 507 to make it move upward. The bottom of the sliding block 507 is curved. When the sliding block 507 is pushed upward by the slider 503, it drives the straightening block 509 fixedly connected inside the connecting block 508 fixedly connected at the top to come into contact with the bottom of the welded pipe 4. When the straightening block 509 straightens the bottom of the welded pipe 4, the sliding block 507, which is narrower at the top and wider at the bottom, slides upward, causing the straightening rods 506 on both sides to spread out and rotate. The spring 510, which is fixedly connected between the two straightening rods 506, always keeps the sliding block 507 at the bottom of the straightening rod 506 in contact with the straightening rod 506. The top of the straightening rod 506 straightens both sides of the welded pipe 4. The two sides of the straightening rod 506 are rotatably connected to the side wall of the mounting frame 501. The straightening rod 506 and the straightening block 509 cooperate to achieve the effect of adapting to materials of different diameters and straightening them.

Claims

1. A straightening and support device for straight seam welded pipes, comprising: The base (1) and the straightening mechanism (5) are characterized in that the straightening mechanism (5) is disposed on the base (1); The straightening mechanism (5) includes a support frame (504), an electric push rod (505), a mounting frame (501), a slider (503), a sliding block (507), a straightening rod (506), a connecting block (508), and a straightening block (509). The support frame (504) and the mounting frame (501) are both fixedly connected to the base (1). The electric push rod (505) is fixedly installed inside the support frame (504), and the slider (503) is fixedly connected to the electric push rod (509). 5) At the output end, the sliding block (507) is disposed above the slider (503) and abuts against the top of the slider (503). The structure of the sliding block (507) is narrow at the top and wide at the bottom. The straightening block (509) is fixedly connected to the top of the sliding block (507) via the connecting block (508). The straightening rod (506) is symmetrically rotatably connected to the side wall of the mounting bracket (501), and the bottom of the straightening rod (506) is attached to the side wall of the sliding block (507).

2. The straight seam welded pipe straightening support device according to claim 1, characterized in that, It also includes a conveying mechanism (3), which is fixedly connected to the top of the base (1), and the straightening mechanism (5) is disposed on one side of the conveying path of the conveying mechanism (3).

3. The straightening and support device for straight seam welded pipes according to claim 2, characterized in that, The conveying mechanism (3) includes a fixed frame (301), a connecting column (302) and a conveying roller (303). The fixed frame (301) is fixedly connected to the top of the base (1), and the conveying roller (303) is rotatably connected to the inside of the fixed frame (301) with the connecting column (302) as the pivot.

4. The straight seam welded pipe straightening support device according to claim 2, characterized in that, It also includes a connecting ring (2), which is located above the feed end of the conveying mechanism (3) and is used to guide the welded pipe (4).

5. The straightening and support device for straight seam welded pipes according to claim 1, characterized in that, The straightening mechanism (5) further includes a slide (502), which is fixedly connected to the support frame (504), and the slider (503) is slidably connected inside the slide (502).

6. The straightening and support device for straight seam welded pipes according to claim 1, characterized in that, The bottom of the sliding block (507) has an arc surface structure.

7. The straightening and support device for straight seam welded pipes according to claim 1, characterized in that, The straightening mechanism (5) also includes a spring (510) connected between the bottoms of the two straightening rods (506).

8. The straight seam welded pipe straightening support device according to claim 4, characterized in that, The welded pipe (4) is housed between the top of the straightening block (509) and the tops of the two straightening rods (506).

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