Efficient machining device for bent pipe welding groove
By designing an efficient processing device for bending pipe welded bevels including ply plates and lifting plates, the problems of low processing accuracy and efficiency of bending pipe bevels are solved, firm fixation and wide applicability of bending pipes are achieved, and labor intensity and processing costs are reduced.
Patent Information
- Application Number
- CN202422189376.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The existing bend bevel processing has inaccurate angles, poor quality, low efficiency, large labor intensity, and a narrow range of application of processing equipment, making it difficult to adapt to bend pipes of different diameters and curvatures.
An efficient processing device for bending pipe welding bevels including workbench, cutting mechanism, mobile table, clamping plate, cylinder, motor and other components is designed. It is fixed by a combination of clamping plate and lifting plate to ensure that the bevel is concentric with the cutting mechanism, and the bevel processing is completed by using the cutting mechanism. It is suitable for bending pipes of any diameter and curvature.
It improves the processing accuracy and efficiency of the bend bevel, reduces the labor intensity of manual work, expands the scope of application of the device, and reduces the workshop space occupation and processing costs.
Smart Images
Figure CN223057263U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elbow groove processing, in particular to a high-efficiency processing device for welding grooves of elbows. Background Art
[0002] In the production and manufacturing processes of equipment such as pressure vessels, pressure pipelines, and boilers, elbow components are often used for turning connections. After these elbows are manufactured by an elbow device, according to the usage requirements, it is often necessary to machine a groove with a certain angle on the end face of the elbow to meet the subsequent welding connection requirements.
[0003] Currently, the following methods are generally used to machine a groove with a certain angle on the port of an elbow: The traditional method is to use a manual steel file to machine the slope, or to use oxyacetylene flame manual cutting to machine the end face of the elbow into the required slope. However, these methods all have problems such as inaccurate groove processing angle, unqualified groove quality, low processing efficiency, and high manual labor intensity. Another method is to use mechanical processing, that is, to machine the groove with a lathe. This processing method also has the following problems: First, the elbow is prone to slipping or shaking during the processing process, resulting in a reduction in the processing accuracy of the groove and affecting the processing quality of the groove. Second, the existing processing devices often can only be applicable to the end face groove processing of one or several specific specifications and models of elbows. However, due to the different diameters and curvatures of the elbows, it is often necessary to manufacture and replace multiple different processing devices, which will undoubtedly occupy and waste a large workshop area and increase the processing cost of the elbow groove. Therefore, it is objectively necessary to develop and manufacture a high-efficiency processing device for welding grooves of elbows with firm fixation, high processing accuracy, and wide application range. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a high-efficiency processing device for welding grooves of elbows with firm fixation, high processing accuracy, and wide application range.
[0005] The purpose of the utility model is realized as follows: It includes a workbench and a cutting mechanism arranged on the workbench. A track is arranged on the workbench, and a moving table is connected to the track through a slider. A number of blind holes are evenly machined on the moving table, and a spring is arranged in each blind hole. The upper end of the spring is provided with a vertical rod. A top plate is arranged above the moving table, and a cylinder is installed on the top plate. The piston rod of the cylinder passes through the top plate and is connected to a lifting pressure plate. A rotating shaft is arranged on one side of the top plate, and the lower end of the rotating shaft passes through the moving table and is drivingly connected to a driving mechanism. A groove is machined on the moving table near the cutting mechanism, and a screw rod is installed in the groove. Threads with opposite rotation directions are respectively machined at both ends of the screw rod, and a clamping plate is connected to each end of the screw rod through threads. One end of the screw rod is drivingly connected to a motor.
[0006] Further, a groove is machined on the clamping plate, and a stretching plate is inserted into the groove.
[0007] Further, a limiting ring is provided at the upper part of the blind hole.
[0008] Further, a limiting block is provided on the vertical rod.
[0009] Further, anti-slip pads are provided on the lower surface of the lifting pressure plate, the upper end of the vertical rod, and the inner side surface of the clamping plate.
[0010] Further, a lifting mechanism is provided between the cutting mechanism and the workbench.
[0011] Further, a ring plate is provided at the upper end of the blind hole, a guide sleeve is provided inside the ring plate, and the vertical rod is movably sleeved inside the guide sleeve.
[0012] When the utility model operates, the bent pipe is placed on the vertical rod, and the gravity of the bent pipe is transmitted to the corresponding spring through the vertical rod. The spring is compressed under pressure, and the bent pipe moves downward by a certain distance. Then, the motor is started, and the motor drives the screw rod to rotate. The screw rod drives two clamping plates to move towards each other until the two clamping plates clamp the end of the bent pipe where the groove needs to be processed, ensuring that the end of the bent pipe is concentric with the cutting mechanism. Then, the driving mechanism is started, and the driving mechanism drives the rotating shaft to rotate. The rotating shaft drives the top plate to rotate, so that the top plate is located above the moving platform. The air cylinder is started, and the air cylinder drives the lifting pressure plate to move downward until the lifting pressure plate presses the bent pipe. At this time, the fixation of the bent pipe is completed. The cutting mechanism is started, and the cutter on the cutting mechanism is used to process the groove at the end of the bent pipe. After the processing is completed, the cutting mechanism is shut down, the lifting pressure plate and the clamping plates are loosened, the position of the bent pipe is adjusted, and the groove at the other end of the bent pipe is processed. In the above process, the groove processing of the bent pipe is completed by the cutting mechanism, and only manual positioning and fixation of the bent pipe are required. Compared with the traditional methods of using manual steel files and oxyacetylene flame manual cutting, the labor intensity of workers is reduced, and the processing efficiency and the quality of groove processing are improved. Secondly, when fixing the bent pipe, on the one hand, two clamping plates are used to clamp, position and fix the end of the bent pipe to be processed. On the other hand, the lifting pressure plate is used to press and fix the bent pipe. At the same time, the vertical rods around the bent pipe can also play a role in limiting the bent pipe. The combination of several limiting and fixing methods can firmly fix the bent pipe, effectively prevent the bent pipe from slipping and shaking during the processing, ensure the processing accuracy of the groove, and improve the processing quality of the groove. In addition, several vertical rods are arranged on the moving platform of this device, the distance between the two clamping plates is adjustable, and the lifting pressure plate can be freely adjusted up and down. No matter the diameter of the bent pipe or the curvature of the bent pipe, it can be placed on the corresponding vertical rod and fixed by the lifting pressure plate and the two clamping plates. In theory, it can be applied to the fixation of bent pipes with any diameter and any curvature and the processing of their grooves. The applicable range is relatively wide. Only one processing device needs to be set in the factory, which reduces the occupation of the limited space and area of the workshop by the processing device and reduces the processing cost of the groove of the bent pipe. To sum up, the utility model has the advantages of firm fixation of the bent pipe, high processing accuracy and wide applicable range. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is the overall structural schematic diagram of the utility model;
[0014] Figure 2 is the top view structural schematic diagram of the utility model after removing the top plate 7 and the lifting pressure plate 9;
[0015] Figure 3 is Figure 1 the enlarged structural schematic diagram of node A in
[0016] Figure 4It is a schematic diagram of the structure of the clamping plate 13 and the stretching plate 15 in the utility model;
[0017] In the figure: 1-workbench, 2-cutting mechanism, 3-track, 4-moving table, 5-spring, 6-vertical rod, 7-top plate, 8-cylinder, 9-lifting and lowering plate, 10-rotating shaft, 11-driving mechanism, 12-screw, 13-clamping plate, 14-motor, 15-stretching plate, 16-limiting ring, 17-limiting block, 18-anti-slip pad, 19-lifting mechanism, 20-guide sleeve. DETAILED DESCRIPTION
[0018] The present invention is further described below in conjunction with the accompanying drawings, but the present invention is not limited in any way. Any changes or improvements made based on the present invention belong to the protection scope of the present invention.
[0019] like Figures 1 to 4 As shown, the utility model includes a workbench 1 and a cutting mechanism 2 arranged on the workbench 1. The cutting mechanism 2 is a prior art and is used for processing the bevel of the end of a bent pipe. It generally includes structures such as a tool, a tool clamping device, a rotating shaft and a driving device. In actual use, for the sake of convenience and cost saving, the tool, tool clamping device, chuck and other structures of a horizontal lathe can also be used instead. A track 3 is arranged on the workbench 1. A moving table 4 is connected to the track 3 through a slider. The moving table 4 can move along the track 3 to provide feed for the processing of the bevel of the bent pipe. A number of blind holes are evenly processed on the moving table 4. A spring 5 is arranged in each blind hole. A vertical rod 6 is arranged on the upper end of the spring 5. A top plate 7 is arranged above the moving table 4. A cylinder 8 is installed on the top plate 7. The piston rod of the cylinder 8 passes through the top plate 7 and is connected to a lifting and lowering plate 9 A rotating shaft 10 is provided on one side of the top plate 7. The lower end of the rotating shaft 10 passes through the moving platform 4 and is connected to the driving mechanism 11 through transmission. The driving mechanism 11 is a prior art and can drive the rotating shaft 10 to rotate. A groove is processed on the moving platform 4 near the side of the cutting mechanism 2, and a screw 12 is installed in the groove. The two ends of the screw 12 are respectively processed with threads of opposite rotation directions. A clamping plate 13 is respectively connected to the two ends of the screw 12 through threads. One end of the screw 12 is connected to the motor 14 through transmission. Two threads of opposite rotation directions are symmetrically processed on the screw 12, and the clamping plates 13 are symmetrically screwed into the two threads. In this way, when the bent pipe is clamped in the middle by the two clamping plates 13, the center position before the two clamping plates 13 is the center position of the bent pipe, ensuring the concentricity of the bent pipe and the cutting mechanism 2, thereby ensuring the processing quality of the groove at the end of the bent pipe.
[0020] During the operation of the utility model, the bent pipe is placed on the vertical rod 6. The gravity of the bent pipe is transmitted to the corresponding spring 5 through the vertical rod 6. The spring 5 is compressed under pressure, and the bent pipe moves downward by a certain distance. Then, start the motor 14. The motor 14 drives the screw rod 12 to rotate. The screw rod 12 drives the two clamping plates 13 to move towards each other until the two clamping plates 13 clamp the end of the bent pipe where the groove needs to be processed, ensuring that the end of the bent pipe is concentric with the cutting mechanism. Start the driving mechanism 11. The driving mechanism 11 drives the rotating shaft 10 to rotate. The rotating shaft 10 drives the top plate 7 to rotate, so that the top plate 7 is located above the moving table 4. Start the cylinder 8. The cylinder 8 drives the lifting pressure plate 9 to move downward until the lifting pressure plate 9 presses the bent pipe tightly. At this time, the fixation of the bent pipe is completed. Start the cutting mechanism 2. Use the tool on the cutting mechanism 2 to process the groove at the end of the bent pipe. After the processing is completed, turn off the cutting mechanism 2, loosen the lifting pressure plate 9 and the clamping plates 13, adjust the position of the bent pipe, and process the groove at the other end of the bent pipe. In the above process, the groove processing of the bent pipe is completed by the cutting mechanism 2. Only manual positioning and fixation of the bent pipe are required. Compared with the traditional methods of using a manual steel file for processing and oxyacetylene flame manual cutting, the manual labor intensity is reduced, and the processing efficiency and groove processing quality are improved. Secondly, when fixing the bent pipe, on the one hand, two clamping plates 13 are used to clamp, position and fix the end of the bent pipe to be processed. On the other hand, the lifting pressure plate 9 is used to press and fix the bent pipe. At the same time, the vertical rods 6 around the bent pipe can also play a role in limiting the position of the bent pipe. The combination of several limiting and fixing methods can firmly fix the bent pipe, effectively prevent the bent pipe from slipping and shaking during the processing, ensure the processing accuracy of the groove, and improve the processing quality of the groove. In addition, several vertical rods 6 are arranged on the moving table 4 of this device. The distance between the two clamping plates 13 is adjustable, and the lifting pressure plate 9 can be freely adjusted up and down. Regardless of the diameter and curvature of the bent pipe, it can be placed on the corresponding vertical rod 6 and fixed by the lifting pressure plate 9 and the two clamping plates 13. In theory, it can be applied to the fixation of bent pipes with any diameter and any curvature and the processing of their grooves. The applicable range is relatively wide. The factory only needs to set up one processing device, which reduces the occupation of the limited space and area of the workshop by the processing device and reduces the processing cost of the bent pipe groove.
[0021] The clamping plate 13 is processed with a groove, and a stretching plate 15 is inserted into the groove. The clamping plate 13 is used to position the end of the bent pipe and make the bent pipe concentric with the cutting mechanism 2, ensuring the processing quality of the groove at the end of the bent pipe. For the convenience of use, the size of the clamping plate 13 is generally not set too large, which results in that when the diameter of the bent pipe is large, the clamping plate 13 cannot effectively fix the bent pipe due to its too low height. To solve this problem, a groove is processed on the clamping plate 13, and the stretching plate 15 is inserted into the groove. When processing a large-diameter bent pipe, the stretching plate 15 is pulled out a certain length from the groove and fixed with parts such as bolts, so as to increase the height of the clamping plate 13, and then the bent pipe can be firmly clamped.
[0022] To prevent the spring 5 from ejecting the vertical rod 6 out of the blind hole, a limit ring 16 is provided at the upper part of the blind hole. When the spring 5 extends, its upper end is blocked by the limit ring 16 and cannot continue to extend, thereby preventing the vertical rod 6 from being pushed out of the blind hole.
[0023] A limit block 17 is provided on the vertical rod 6. When the bent pipe is placed on the vertical rod 6, the spring 5 contracts and the vertical rod 6 moves downward. In the actual use process, it is found that when the size and mass of the bent pipe are large, its gravity will compress the spring 5 to the limit, and at this time, the spring 5 is very likely to be pressed and damaged, causing unnecessary losses. To solve this problem, the limit block 17 is provided. When the vertical rod 6 moves downward, the limit block 17 moves downward accordingly. When the limit block 17 moves downward to the upper end position of the blind hole, it is blocked by the moving table 4 and cannot continue to move downward, and the vertical rod 6 stops moving downward and no longer continues to compress the spring 5, thereby protecting the spring 5 and extending its service life.
[0024] Anti-slip pads 18 are provided on the lower surface of the lifting pressure plate 9, the upper end of the vertical rod 6, and the inner side surface of the clamping plate 13. During the use of this device, the lifting pressure plate 9, the vertical rod 6, and the clamping plate 13 are all used for positioning and fixing the bent pipe. To prevent the bent pipe from slipping and shaking during the processing, anti-slip pads 18 are provided on the lower surface of the lifting pressure plate 9, the upper end of the vertical rod 6, and the inner side surface of the clamping plate 13. The anti-slip pad 18 is a prior art and has a large friction force with the surface of the bent pipe, which can prevent the bent pipe from slipping. At the same time, the anti-slip pad 18 separates the lifting pressure plate 9, the vertical rod 6, and the clamping plate 13 from the bent pipe, preventing the lifting pressure plate 9, the vertical rod 6, and the clamping plate 13 from damaging the bent pipe during the process of fixing the bent pipe.
[0025] A lifting mechanism 19 is arranged between the cutting mechanism 2 and the workbench 1. The lifting mechanism 19 is a prior art and structures such as a hydraulic cylinder and a lead screw can be selected as long as it can drive the cutting mechanism 2 to move up and down. This device can be applied to the pressing of bent pipes with various diameters and various curvatures. When the diameter of the bent pipe changes, its pipe center line will also move up and down and change accordingly. In order to ensure that the cutting mechanism 2 can be concentric with the bent pipe, it is necessary to adjust the height position of the cutting mechanism 2. At this time, the lifting mechanism 19 can be used to drive the cutting mechanism 2 to move up and down to achieve the purpose of adjusting the height of the cutting mechanism 2 and ensure the processing quality of the bent pipe bevel.
[0026] A ring plate is arranged at the upper end of the blind hole, and a guide sleeve 20 is arranged on the inner side of the ring plate. The vertical rod 6 is movably sleeved in the guide sleeve 20. Under normal circumstances, the vertical rod 6 is pushed up by the spring 5. When the bent pipe is placed, under the action of the gravity of the bent pipe, the spring 5 contracts and the vertical rod 6 moves down. After the bent pipe is removed, the vertical rod 6 moves up to restore its original position. It can be seen that the vertical rod 6 moves up and down continuously during use. However, in actual use, it is found that the vertical rod 6 is skewed and stuck during the up and down movement. In order to solve this problem, the guide sleeve 20 is provided to limit and guide the vertical rod 6, so that the vertical rod 6 can move vertically up and down to ensure the smooth progress of the bent pipe bevel processing process.
Claims
1. An efficient processing device for the welding groove of a bent pipe, comprising a workbench (1) and a cutting mechanism (2) arranged on the workbench (1), characterized in that : A rail (3) is provided on the workbench (1), and a moving table (4) is connected to the rail (3) through a slider. A number of blind holes are evenly machined on the moving table (4), and a spring (5) is arranged in each blind hole. A vertical rod (6) is arranged at the upper end of the spring (5). A top plate (7) is arranged above the moving table (4), and a cylinder (8) is installed on the top plate (7). The piston rod of the cylinder (8) passes through the top plate (7) and is connected to a lifting pressure plate (9). A rotating shaft (10) is arranged on one side of the top plate (7). The lower end of the rotating shaft (10) passes through the moving table (4) and is drivingly connected to a driving mechanism (11). A groove is machined on the moving table (4) near the cutting mechanism (2), and a screw rod (12) is installed in the groove. Threads with opposite helix directions are machined at both ends of the screw rod (12), and a clamping plate (13) is connected to each end of the screw rod (12) through threads. One end of the screw rod (12) is drivingly connected to a motor (14).
2. The high-efficiency processing device for the welding bevel of a bent pipe according to claim 1, wherein : A groove is machined on the clamping plate (13), and a stretching plate (15) is inserted in the groove.
3. The high-efficiency processing device for the welding bevel of a bent pipe according to claim 1, characterized in that : A limiting ring (16) is arranged at the upper part of the blind hole.
4. The high-efficiency processing device for the welding groove of a bent pipe according to claim 1, wherein : A limiting block (17) is arranged on the vertical rod (6).
5. The high-efficiency processing device for the welding bevel of a bent pipe according to claim 1, wherein : Anti-slip pads (18) are arranged on the lower surface of the lifting pressure plate (9), the upper end of the vertical rod (6), and the inner side surface of the clamping plate (13).
6. The high-efficiency processing device for the welding groove of a bent pipe according to claim 1, wherein : A lifting mechanism (19) is arranged between the cutting mechanism (2) and the workbench (1).
7. The high-efficiency processing device for the welding groove of a bent pipe according to claim 1, characterized in that : A ring plate is arranged at the upper end of the blind hole, and a guide sleeve (20) is arranged inside the ring plate. The vertical rod (6) is movably sleeved in the guide sleeve (20).