A pneumatic buffer structure of a pipe bending machine

Abstract

This utility model relates to the field of pipe bending machine technology and discloses a pneumatic buffer structure for a pipe bending machine. It includes a worktable with a pressing plate on top. A buffer structure is engaged with one end of the pressing plate. A disassembly structure is provided on one side of the buffer structure. The buffer structure includes a buffer plate with a first buffer block inside. A connecting column is fixedly connected to one side of the first buffer block, and a fixing plate is fixedly connected to one end of the connecting column. Rotating plates are rotatably connected to both sides of the fixing plate via first fixing shafts. A sliding ring is rotatably connected to one end of the rotating plate, and a second fixing shaft is slidably connected inside the sliding ring. In this utility model, the buffer structure is engaged with the pressing plate. A first air pump pushes the pressing plate to drive the buffer structure to press the pipe, reducing the impact force between the buffer structure and the pipe, preventing damage to the machine and the pipe, and improving the service life of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of pipe bending machine technology, and in particular to a pneumatic buffer structure for a pipe bending machine. Background Technology

[0002] A pipe bending machine is a mechanical device used to process metal pipes. Its main function is to bend straight pipes into various shapes. A pipe bending machine usually consists of a frame, bending mold, hydraulic system, electrical system, etc. The working principle of the pipe bending machine is to put the straight pipe into the bending mold and apply force through the hydraulic system to bend the pipe into the required angle and shape.

[0003] When existing pipe bending machines are in use, the mold generates a large impact force when bending the pipe, which causes wear and tear on both the mold and the pipe. Furthermore, the pipe bending mold is complicated to disassemble and difficult to replace or repair quickly, which hinders the work process and reduces work efficiency.

[0004] Therefore, those skilled in the art have provided a pneumatic buffer structure for a pipe bending machine to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a pneumatic buffer structure for a pipe bending machine. This buffer structure reduces impact, decreases wear, reduces vibration during bending operations, improves stability, and lowers operational risks. Furthermore, it includes a disassembly structure that allows for quick and easy replacement of the buffer mold, thus improving work efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A pneumatic buffer structure for a pipe bending machine includes a worktable, a pressing plate on the top of the worktable, a buffer structure engaged at one end of the pressing plate, and a disassembly structure on one side of the buffer structure.

[0008] The buffer structure includes a buffer plate that is engaged with a compression plate. A first buffer block is provided inside the buffer plate. A connecting post is fixedly connected to one side of the first buffer block. A second spring is sleeved on the outside of the connecting post. A fixing plate is fixedly connected to the end of the connecting post away from the first buffer block. A first fixing shaft is fixedly connected to both sides of the fixing plate. A rotating plate is rotatably connected to the first fixing shaft. A sliding ring is rotatably connected to the end of the rotating plate away from the first fixing shaft. A second fixing shaft is slidably connected inside the sliding ring. A third spring is fixedly connected to one side of the sliding ring.

[0009] The disassembly structure includes a first slot, which is located inside the end of the extrusion plate near the buffer structure. A card plate is engaged inside the first slot. A second slot is provided at one end of the card plate. A groove is provided at the top of one end of the first slot. A card rod is provided inside the groove. A fourth spring is sleeved on the outside of the card rod.

[0010] The above technical solution incorporates a buffer structure to reduce vibration and improve stability when the extrusion plate bends the pipe, and to mitigate the impact force generated by the collision between the two. A disassembly structure allows for quick and easy removal of the buffer plate from the extrusion plate for maintenance and replacement, thus not hindering work progress and improving work efficiency.

[0011] Furthermore, the end of the sliding ring furthest from the third spring and both ends of the second fixed shaft are fixedly connected to the buffer plate;

[0012] Through the above technical solution, the first buffer block is squeezed by pressure, causing the sliding ring to slide to both sides, and the third spring is used to reduce the pressure on the sliding ring.

[0013] Furthermore, one side of the card plate is fixedly connected to the buffer plate, and the second card slot is engaged with the card rod;

[0014] Using the above technical solution, the card plate is inserted into the first card slot, and the card plate is pushed to insert the card rod into the second card slot, thereby fixing the buffer plate to one end of the extrusion plate.

[0015] Furthermore, a first air pump is fixedly connected to one end of the extrusion plate away from the buffer structure, and a second air pump is provided on both sides of the extrusion plate, with an auxiliary pressure block fixedly connected to one end of the second air pump.

[0016] The above technical solution utilizes a first air pump to push an extrusion plate to extrude the pipe, and a second air pump to push an auxiliary pressure block to limit and fix the pipe.

[0017] Furthermore, two third fixed shafts are fixedly connected to the top of the workbench, and movable pulleys are rotatably connected to the outside of the third fixed shafts. A pipe is provided on one side of the third fixed shaft.

[0018] The above technical solution involves setting up a movable pulley, which causes the pipe to rotate during the process of being squeezed and bent, thereby reducing friction and distributing force evenly.

[0019] Furthermore, a first slide groove is provided at one end of the worktable, a sliding shaft is fixedly connected inside the first slide groove, a first slider is threadedly connected to the outside of the sliding shaft, a second buffer block is fixedly connected to the top of the first slider, a first spring is sleeved on the outside of the sliding shaft, and the two ends of the first spring are fixedly connected to the worktable and the first slider, respectively.

[0020] By using the above technical solution, a second buffer block is set up to assist in buffering the bending operation while ensuring that the pipe moves stably after being squeezed, thus preventing the pipe from being excessively squeezed.

[0021] Furthermore, a second slide groove is provided on the top of the workbench, and a second slider is provided inside the second slide groove. The second slider is fixedly connected to the extrusion plate.

[0022] By using the above technical solution, a second chute is set so that the extrusion plate is limited when pushed by the first air pump, thereby enabling stable movement for extrusion.

[0023] This utility model has the following beneficial effects:

[0024] 1. This utility model proposes a pneumatic buffer structure for a pipe bending machine. By setting up a buffer structure, the buffer structure is engaged with the extrusion plate. A first air pump pushes the extrusion plate, thereby driving the buffer structure to move and extrude the pipe. The pipe then extrudes the first buffer block, which in turn causes the sliding ring to slide on the second fixed shaft. A third spring is fixedly connected to one side of the sliding ring. The third spring reduces the pressure on the sliding ring, thereby reducing the pressure on the first buffer block, reducing the impact force between the buffer structure and the pipe, preventing damage to the machine and the pipe, and improving the service life and working efficiency of the equipment.

[0025] 2. The pneumatic buffer structure for a pipe bending machine proposed in this utility model has a disassembly structure. The clamping plate is inserted into the first clamping slot, and the clamping plate is pushed to insert the clamping rod into the second clamping slot, thereby fixing the buffer plate to one end of the extrusion plate. When the buffer plate needs to be replaced, the operation can be reversed. This allows for quick and convenient installation and maintenance of the buffer plate, saving time and improving work efficiency and safety. Attached Figure Description

[0026] Figure 1 This is a perspective view of a pneumatic buffer structure for a pipe bending machine proposed in this utility model;

[0027] Figure 2 This is a cross-sectional view of a pipe bending machine with a pneumatic buffer structure proposed in this utility model.

[0028] Figure 3 This is a cross-sectional view of the buffer structure of a pneumatic buffer structure for a pipe bending machine proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the buffer plate structure of a pneumatic buffer structure for a pipe bending machine proposed in this utility model;

[0030] Figure 5 This is a sectional view of the disassembly structure of a pneumatic buffer structure for a pipe bending machine proposed in this utility model.

[0031] Legend:

[0032] 1. Workbench; 2. Buffer structure; 201. Buffer plate; 202. First buffer block; 203. Connecting column; 204. Second spring; 205. Fixing plate; 206. First fixed shaft; 207. Rotating plate; 208. Sliding ring; 209. Second fixed shaft; 210. Third spring; 3. Disassembly structure; 301. First slot; 302. Slot plate; 303. Second slot; 304. Groove; 305. Fourth spring; 306. Locking rod; 4. First air pump; 5. Second air pump; 6. Auxiliary pressure block; 7. Pipe; 8. Moving pulley; 9. Third fixed shaft; 10. Second buffer block; 11. First slider; 12. Sliding shaft; 13. First spring; 14. First slide groove; 15. Extrusion plate; 1501. Second slide groove; 1502. Second slider. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Reference Figure 1 , Figure 3 and Figure 4 One specific embodiment provided by this utility model:

[0035] A pneumatic buffer structure for a pipe bending machine includes a worktable 1. A pressing plate 15 is mounted on the top of the worktable 1. A buffer structure 2 is engaged with one end of the pressing plate 15. A disassembly structure 3 is provided on one side of the buffer structure 2. The buffer structure 2 includes a buffer plate 201, which is engaged with the pressing plate 15. A first buffer block 202 is disposed inside the buffer plate 201. A connecting post 203 is fixedly connected to one side of the first buffer block 202. A second spring 204 is sleeved on the outside of the connecting post 203. A fixing plate 205 is fixedly connected to the end of the connecting post 203 away from the first buffer block 202. A first fixing shaft 206 is fixedly connected to both sides of the fixing plate 205. The first fixing shaft 206 is rotatably connected to a rotating... Plate 207, with a sliding ring 208 rotatably connected to the end of the rotating plate 207 away from the first fixed shaft 206. A second fixed shaft 209 is slidably connected inside the sliding ring 208. A third spring 210 is fixedly connected to one side of the sliding ring 208. A buffer structure 2 is provided to reduce vibration, improve stability, and mitigate the impact force generated by the collision between the extrusion plate 15 and the pipe 7 when the extrusion plate 15 bends the pipe. The end of the sliding ring 208 away from the third spring 210 and both ends of the second fixed shaft 209 are fixedly connected to the buffer plate 201. When the first buffer block 202 is compressed, it causes the sliding ring 208 to slide to both sides. The third spring 210 reduces the pressure on the sliding ring 208. The extrusion plate 15 moves away from the buffer structure. One end of the workbench 15 is fixedly connected to a first air pump 4. Second air pumps 5 are installed on both sides of the extrusion plate 15. An auxiliary pressure block 6 is fixedly connected to one end of each second air pump 5. The first air pump 4 pushes the extrusion plate 15 to extrude the pipe 7, and the second air pump 5 pushes the auxiliary pressure block 6 to limit and fix the pipe 7. Two third fixed shafts 9 are fixedly connected to the top of the workbench 1. A movable pulley 8 is rotatably connected to the outside of each third fixed shaft 9. A pipe 7 is installed on one side of each third fixed shaft 9, with the movable pulley 8 installed so that the pipe 7 rotates during the extrusion and bending process, reducing friction and distributing force evenly. One end of the workbench 1 is provided with a first sliding groove 14. A sliding shaft 12 is fixedly connected inside the first sliding groove 14. A first slider 11 is threaded onto the outside of the shaft 12. A second buffer block 10 is fixedly connected to the top of the first slider 11. A first spring 13 is sleeved on the outside of the sliding shaft 12. The two ends of the first spring 13 are fixedly connected to the worktable 1 and the first slider 11, respectively. The second buffer block 10 is provided to assist in buffering the bending operation and to make the tube 7 move stably after being squeezed, preventing the tube 7 from being over-squeezed. A second slide groove 1501 is provided on the top of the worktable 1. A second slider 1502 is provided inside the second slide groove 1501. The second slider 1502 is fixedly connected to the extrusion plate 15. The second slide groove 1501 is provided to limit the extrusion plate 15 when it is pushed by the first air pump 4, so that it can move stably for extrusion.

[0036] Reference Figure 2 and Figure 5The disassembly structure 3 includes a first slot 301 located inside the end of the extrusion plate 15 near the buffer structure 2. A card plate 302 is engaged inside the first slot 301. A second slot 303 is provided at one end of the card plate 302. A groove 304 is provided at the top of one end of the first slot 301. A locking rod 306 is provided inside the groove 304. A fourth spring 305 is sleeved on the outside of the locking rod 306. The disassembly structure 3 allows the buffer plate 201 to be quickly and easily removed from the extrusion plate 15 for maintenance and replacement, thus not hindering the work progress and improving work efficiency. One side of the card plate 302 is fixedly connected to the buffer plate 201. The second slot 303 is engaged with the locking rod 306. The card plate 302 is inserted into the first slot 301, and the card plate 302 is pushed to insert the locking rod 306 into the second slot 303, thereby fixing the buffer plate 201 to one end of the extrusion plate 15.

[0037] Working principle: When using the pneumatic buffer structure of this pipe bending machine, the pipe 7 is placed on one side of the moving pulley 8, and the clamping plate 302 is inserted into the first clamping groove 301. Pushing the clamping plate 302 will insert the clamping rod 306 into the second clamping groove 303. The clamping plate 302 is fixedly connected to the buffer plate 201, thereby fixing the buffer plate 201 to one end of the extrusion plate 15. When the buffer plate 201 needs to be replaced, the operation is reversed. When performing the bending operation, the first air pump 4 is started to push the extrusion plate 15. The buffer structure 2 is engaged with the extrusion plate 15, thereby driving the buffer structure 2 to move and extruding the pipe 7. The pipe 7 extrudes the first buffer block 202, thereby driving the sliding ring 208 to slide on the second fixed shaft 209. A third spring 210 is fixedly connected to one side of the sliding ring 208. The third spring 210 reduces the pressure on the sliding ring 208, thereby reducing the pressure on the first buffer block 202 and reducing the impact force between the buffer structure 2 and the pipe 7.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pneumatic buffer structure for a pipe bending machine, comprising a worktable (1), characterized in that: The top of the workbench (1) is provided with an extrusion plate (15), one end of the extrusion plate (15) is engaged with a buffer structure (2), and a disassembly structure (3) is provided on one side of the buffer structure (2). The buffer structure (2) includes a buffer plate (201), which is engaged with a compression plate (15). A first buffer block (202) is provided inside the buffer plate (201). A connecting post (203) is fixedly connected to one side of the first buffer block (202). A second spring (204) is sleeved on the outside of the connecting post (203). A fixing plate (205) is fixedly connected to one end of the connecting post (203) away from the first buffer block (202). A first fixing shaft (206) is fixedly connected to both sides of the fixing plate (205). A rotating plate (207) is rotatably connected to the first fixing shaft (206). A sliding ring (208) is rotatably connected to one end of the rotating plate (207) away from the first fixing shaft (206). A second fixing shaft (209) is slidably connected inside the sliding ring (208). A third spring (210) is fixedly connected to one side of the sliding ring (208). The disassembly structure (3) includes a first slot (301), which is located inside the end of the extrusion plate (15) near the buffer structure (2). A card plate (302) is engaged inside the first slot (301). A second slot (303) is provided at one end of the card plate (302). A groove (304) is provided at the top of one end of the first slot (301). A card rod (306) is provided inside the groove (304). A fourth spring (305) is sleeved on the outside of the card rod (306).

2. The pneumatic buffer structure for a pipe bending machine according to claim 1, characterized in that: The end of the sliding ring (208) away from the third spring (210) and both ends of the second fixed shaft (209) are fixedly connected to the buffer plate (201).

3. The pneumatic buffer structure for a pipe bending machine according to claim 1, characterized in that: One side of the card plate (302) is fixedly connected to the buffer plate (201), and the second card slot (303) is engaged with the card rod (306).

4. The pneumatic buffer structure for a pipe bending machine according to claim 1, characterized in that: The end of the extrusion plate (15) away from the buffer structure (2) is fixedly connected to a first air pump (4), and a second air pump (5) is provided on both sides of the extrusion plate (15). An auxiliary pressure block (6) is fixedly connected to one end of the second air pump (5).

5. The pneumatic buffer structure for a pipe bending machine according to claim 1, characterized in that: The top of the workbench (1) is fixedly connected to two third fixed shafts (9), and the outside of the third fixed shafts (9) is rotatably connected to a movable pulley (8). A pipe (7) is provided on one side of the third fixed shafts (9).

6. The pneumatic buffer structure for a pipe bending machine according to claim 1, characterized in that: One end of the workbench (1) is provided with a first slide groove (14), and a sliding shaft (12) is fixedly connected inside the first slide groove (14). A first slider (11) is threadedly connected to the outside of the sliding shaft (12), and a second buffer block (10) is fixedly connected to the top of the first slider (11).

7. The pneumatic buffer structure for a pipe bending machine according to claim 1, characterized in that: The top of the workbench (1) is provided with a second slide groove (1501), and a second slider (1502) is provided inside the second slide groove (1501). The second slider (1502) is fixedly connected to the extrusion plate (15).

8. The pneumatic buffer structure for a pipe bending machine according to claim 6, characterized in that: The sliding shaft (12) is fitted with a first spring (13), and the two ends of the first spring (13) are fixedly connected to the worktable (1) and the first slider (11) respectively.

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