Electric heating tube bending machine driven by air cylinder

Abstract

The utility model relates to an electric heating tube bending machine driven by a cylinder, which comprises a working table, the cylinder is arranged at the top of the working table close to the left side, a driving rod is arranged on the right side of the cylinder, the left end of the driving rod is fixedly connected with the power output end of the cylinder, a rack is arranged on the front side of the driving rod, a gear is arranged on the rear side of the rack, and the gear is connected with the driving rod. The position, close to the right side, of the top of the workbench is fixedly connected with a supporting plate, the gear is located on the inner side of the supporting plate, a rotating column is fixedly arranged in an inner cavity of the gear in a penetrating mode, an arc-shaped groove is formed in the top of the supporting plate, and a cylinder is movably arranged in an inner cavity of the arc-shaped groove in a penetrating mode. And by adjusting the distance between the rotating column and the cylinder and the position of the vertical plate, the device can be suitable for machining the electric heating pipes of different sizes, and the application range of the device is greatly widened.

Description

Technical Field

[0001] This utility model relates to the field of electric heating tube processing technology, specifically to a cylinder-driven electric heating tube bending machine. Background Technology

[0002] Electric heating elements are ubiquitous in our lives, such as those in soy milk makers, rice cookers, and water heaters. With the development of the pipe processing industry, pipe shapes are becoming increasingly complex, and the requirements for the degree of bending and the shape of the bends of electric heating elements are becoming more and more diverse. Consequently, the corresponding bending equipment also needs to be constantly updated and improved.

[0003] Currently, electric heating tube bending machines on the market mainly control the bending angle through servo motors or hydraulic transmission, which has high production efficiency. However, due to the large initial investment in servo motors, the production cost is high, and they are only suitable for large-scale production. Hydraulic transmission control has high technical requirements for components, strict use and maintenance, and is prone to leakage and pollution, which affects the reliability of the system.

[0004] A search revealed Chinese patent application number CN201320347580.2, filed on June 7, 2013, entitled "Three-Dimensional Pipe Bending Machine with Angle Adjustment Structure." This application discloses a three-dimensional pipe bending machine with an angle adjustment structure, including a worktable, a bending structure mounted on the worktable, and a control motor mounted within the worktable. The bending structure includes a clamping component, a bending angle support plate, and a bending shaft. The bending shaft is movably mounted on the worktable and cooperates with the bending angle support plate. The bending shaft is connected to the control motor. An angle adjustment structure with an angle scale is provided on the bending angle support plate, and the bending angle of the bending angle support plate is adjusted through the angle adjustment structure. This application has a simple structure and includes a bending angle adjustment structure, allowing for accurate angle setting as needed. Furthermore, it effectively improves the processing accuracy of pipe bending during the process. However, this application still uses a control motor for control, resulting in higher production costs. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, one of the objectives of this utility model is to provide a cylinder-driven electric heating tube bending machine.

[0006] One of the objectives of this utility model is achieved through the following technical solution:

[0007] A cylinder-driven electric heating tube bending machine includes a worktable. A cylinder is located on the top of the worktable near the left side. A drive rod is located on the right side of the cylinder. The left end of the drive rod is fixedly connected to the power output end of the cylinder. A rack is located on the front side of the drive rod, and a gear is located on the rear side of the rack. A support plate is fixedly connected to the top of the worktable near the right side. The gear is located inside the support plate, and a rotating column is fixedly inserted through the inner cavity of the gear. An arc-shaped groove is formed on the top of the support plate, and a cylinder movably passes through the inner cavity of the arc-shaped groove. The bottom of the cylinder has a... A fixed plate is fixedly connected to the side wall of the rotating column. The fixed plate has a rectangular groove through which a first threaded rod is movably inserted. A first nut is fitted on the outer edge of the first threaded rod. A vertical plate is provided at the bottom of the support plate near the front side. A second threaded rod and two sliders are fixedly connected to the bottom of the vertical plate. Two sliding grooves are provided at the top of the support plate. The sliders are movably connected to the inner cavities of adjacent sliding grooves. A first through groove is provided at the top of the support plate. The bottom end of the second threaded rod movably passes through the first through groove and is fitted with a second nut.

[0008] Furthermore, the bottom of the workbench is provided with a base plate, and four support rods are fixedly connected to the top of the base plate. The support rods are fixedly connected to the bottom of the workbench.

[0009] Furthermore, support frames are fixedly connected to both the left and right sides of the cylinder, and two first screws are inserted into the top of the support frames. The support frames are installed on the top of the worktable by the first screws.

[0010] Furthermore, the rack has two second screws on its front side, and the rack is mounted on the front side of the drive rod by the two second screws.

[0011] Furthermore, bearings are fixedly inserted into the top of both the workbench and the support plate, and adjacent bearings are fixedly inserted through both ends of the rotating column.

[0012] Furthermore, limiting blocks are fixedly connected to both the front and rear sides of the first threaded rod, and several limiting grooves are opened on both the front and rear sides of the inner cavity of the rectangular groove. The limiting blocks are movably inserted into the inner cavities of adjacent limiting grooves. The first nut and the first threaded rod are connected by a thread, and a first operating rod is fixedly connected to both the front and rear sides of the first nut.

[0013] Furthermore, the second nut and the second threaded rod are connected by a thread, and the second operating rod is fixedly connected to both the front and rear sides of the second nut.

[0014] Furthermore, two U-shaped rods are provided on the left side of the vertical plate, and two second through slots are opened on the side wall of the vertical plate. The right end of the U-shaped rod passes through the second through slot and is fixedly connected to a connecting plate. A screw hole is opened on the connecting plate, and a third threaded rod passes through the inner cavity of the screw hole. A rubber head is fixedly connected to the left end of the third threaded rod. The left side of the rubber head fits against the right side of the vertical plate. The third threaded rod and the screw hole are connected by a thread. A third operating rod is fixedly connected to the top and bottom of the third threaded rod.

[0015] The beneficial effects of this utility model are: 1. This utility model provides a cylinder-driven electric heating tube bending machine. By adjusting the distance between the rotating column and the cylinder, as well as the position of the vertical plate, the device can be applied to the processing of electric heating tubes of different sizes, greatly improving the applicability of the device; 2. This utility model provides a cylinder-driven electric heating tube bending machine. By setting the limiting block and the limiting groove, the cylinder is prevented from shifting during the bending process of the electric heating tube, thereby ensuring the normal progress of the bending work. Attached Figure Description

[0016] Figure 1 This is a frontal perspective view of the present invention;

[0017] Figure 2 This is a front perspective view of the cylinder component of this utility model;

[0018] Figure 3 This is a front perspective view of the rack component of this utility model;

[0019] Figure 4 This is a front perspective view of the support plate of the component of this utility model;

[0020] Figure 5 This is a frontal perspective view of the arc-shaped groove of the component of this utility model;

[0021] Figure 6 This is a front perspective view of the rotating column of this utility model component;

[0022] Figure 7 This is a front perspective view of the fixing plate of the component of this utility model;

[0023] Figure 8 This is a bottom perspective view of the fixing plate of the component of this utility model;

[0024] Figure 9 This is a bottom perspective view of the first threaded rod of the present invention.

[0025] Figure 10 This is a frontal perspective view of the vertical plate of the component of this utility model;

[0026] Figure 11 This is a bottom-view perspective view of the vertical plate of the component of this utility model;

[0027] Figure 12 This is a frontal perspective view of the U-shaped rod, a component of this utility model.

[0028] The components are as follows: 1. Workbench; 2. Base plate; 3. Support rod; 4. Cylinder; 5. Support frame; 6. Drive rod; 7. Rack; 8. Gear; 9. Support plate; 10. Rotating column; 11. Bearing; 12. Fixing plate; 13. Cylinder; 14. First threaded rod; 15. Rectangular groove; 16. Limiting block; 17. Limiting groove; 18. First nut; 19. First operating rod; 20. Arc groove; 21. Vertical plate; 22. Slider; 23. Slide groove; 24. Second threaded rod; 25. Second nut; 26. Second operating rod; 27. First through groove; 28. U-shaped rod; 29. ​​Second through groove; 30. Connecting plate; 31. Third threaded rod; 32. Screw hole; 33. Rubber head; 34. Third operating rod. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of this utility model, the following description is provided in conjunction with the appendix. Figure 1-12 Further analysis of this utility model is then conducted.

[0030] like Figure 1-12 As shown, a cylinder-driven electric heating tube bending machine includes a worktable 1. A base plate 2 is provided at the bottom of the worktable 1. Four support rods 3 are fixedly connected to the top of the base plate 2, and the support rods 3 are fixedly connected to the bottom of the worktable 1. A cylinder 4 is located near the left side of the top of the worktable 1. Support frames 5 are fixedly connected to both sides of the cylinder 4. Two first screws are inserted into the top of the support frames 5, and the support frames 5 are installed on the top of the worktable 1 by the first screws. A drive rod 6 is located on the right side of the cylinder 4, and the left end of the drive rod 6 is connected to the cylinder 4. The power output end is fixedly connected. A rack 7 is provided on the front side of the drive rod 6. Two second screws are provided on the front side of the rack 7. The rack 7 is installed on the front side of the drive rod 6 by the two second screws. A gear 8 that meshes with the rack 7 is provided on the rear side of the rack 7. A support plate 9 is fixedly connected to the top of the worktable 1 near the right side. The gear 8 is located inside the support plate 9. A rotating column 10 is fixedly inserted through the inner cavity of the gear 8. Bearings 11 are fixedly inserted into the top of both the worktable 1 and the support plate 9. Adjacent bearings 11 are fixedly inserted through both ends of the rotating column 10.

[0031] The top of the support plate 9 is provided with an arc-shaped groove 20, and a cylinder 13 is movably inserted through the inner cavity of the arc-shaped groove 20. The bottom of the cylinder 13 is provided with a fixing plate 12, which is fixedly connected to the side wall of the rotating column 10. A rectangular groove 15 is provided on the fixing plate 12, and a first threaded rod 14 is movably inserted through the inner cavity of the rectangular groove 15. A first nut 18 is sleeved on the outer edge of the first threaded rod 14. Limiting blocks 16 are fixedly connected to both the front and rear sides of the first threaded rod 14. Several limiting grooves 17 are provided on both the front and rear sides of the inner cavity of the rectangular groove 15. The limiting blocks 16 are movably inserted into the inner cavity of the adjacent limiting grooves 17. The first nut 18 and the first threaded rod 14 are threadedly connected. A first operating rod 19 is fixedly connected to both the front and rear sides of the first nut 18.

[0032] A vertical plate 21 is provided at the bottom of the support plate 9 near the front side. A second threaded rod 24 and two sliders 22 are fixedly connected to the bottom of the vertical plate 21. Two sliding grooves 23 are formed at the top of the support plate 9. The sliders 22 are movably connected to the inner cavities of adjacent sliding grooves 23. A first through groove 27 is formed at the top of the support plate 9. The bottom end of the second threaded rod 24 movably passes through the first through groove 27 and is fitted with a second nut 25. The second nut 25 and the second threaded rod 24 are threaded together. Second operating rods 26 are fixedly connected to both the front and rear sides of the second nut 25. Two U-shaped rods 28 are provided on the left side. Two second through slots 29 are opened on the side wall of the vertical plate 21. The right end of the U-shaped rod 28 passes through the second through slot 29 and is fixedly connected to the connecting plate 30. The connecting plate 30 is provided with a screw hole 32. A third threaded rod 31 passes through the inner cavity of the screw hole 32. A rubber head 33 is fixedly connected to the left end of the third threaded rod 31. The left side of the rubber head 33 fits against the right side of the vertical plate 21. The third threaded rod 31 and the screw hole 32 are connected by a thread. A third operating rod 34 is fixedly connected to the top and bottom of the third threaded rod 31.

[0033] Working Principle: This utility model discloses a cylinder-driven electric heating tube bending machine. During operation, the distance between the rotating column 10 and the cylinder 13 is first adjusted according to the diameter of the heating tube to be bent. During this process, the first nut 18 is loosened by the first operating rod 19. The first nut 18 moves downwards along the outer edge of the first threaded rod 14 until it is far away from the first threaded rod 14, thus releasing the cylinder 13 from its fixation. Then, the cylinder 13 is moved upwards, causing the first threaded rod 14 and the limiting block 16 to move. The limiting block 16 moves away from the limiting groove 17, thus removing the cylinder 13. Then, based on the diameter of the heating element of the tube to be bent, the distance between the rotating column 10 and the cylinder 13 is determined, thereby determining the position of the cylinder 13. Then, the cylinder 13 is moved downwards, and the cylinder 13 drives the first threaded rod 14 and the limiting block 16 to move. The first threaded rod 14 passes through the rectangular groove 15, and the limiting block 16 is inserted into the inner cavity of the corresponding limiting groove 17. At this time, the distance between the rotating column 10 and the cylinder 13 is the same as the diameter of the heating element of the tube to be bent. Then, the first nut 18 is put on, and the first nut 18 is tightened through the first operating rod 19 to fix the cylinder 13. The heating element of the tube to be bent is placed between the rotating column 10 and the cylinder 13.

[0034] Then, loosen the second nut 25 by using the second operating rod 26 to release the fixation of the vertical plate 21. Then, move the vertical plate 21 horizontally. The vertical plate 21 drives the slider 22 to move in the inner cavity of the slide groove 23. The vertical plate 21 also drives the second threaded rod 24 to move in the inner cavity of the first through groove 27. Move the vertical plate 21 to fit against the side wall of the heating tube of the tube to be bent. Then, tighten the second nut 25 by using the second operating rod 26 to fix the vertical plate 21.

[0035] The third operating rod 34 drives the third threaded rod 31 to rotate, the third threaded rod 31 moves relative to the threaded hole 32, the third threaded rod 31 drives the rubber head 33 to move, the rubber head 33 moves away from the vertical plate 21, thereby releasing the fixation of the U-shaped rod 28, and then moves the heating tube to be bent to the rear side, while moving the U-shaped rod 28 at the same time, at least one U-shaped rod 28 is sleeved on the outside of the heating tube to be bent, the bending position of the heating tube is in contact with the rotating column 10, and then the third threaded rod 31 sleeved on the U-shaped rod 28 on the outside of the heating tube to be bent is tightened, the rubber head 33 is in contact with the side wall of the vertical plate 21, thereby fixing the U-shaped rod 28, and the U-shaped rod 28 fixes the heating tube of the tube to be bent on the vertical plate 21;

[0036] The above completes the fixing operation of the heating tube to be bent. By adjusting the distance between the rotating column 10 and the cylinder 13, as well as the position of the vertical plate 21, the device can be used to process heating tubes of different sizes, greatly improving the applicability of the device.

[0037] After the heating element is fixed, cylinder 4 is started by an external power supply. Cylinder 4 drives rack 7 to move to the right via drive rod 6. Rack 7 drives gear 8 to rotate. Gear 8 drives rotating column 10 to rotate within the bearing 11. Rotating column 10 drives cylinder 13 to rotate via fixing plate 12. Cylinder 13 rotates within the arc groove 20 until it touches the heating element. Then, as gear 8 continues to rotate, cylinder 13 drives the heating element to bend around rotating column 10. The bending angle of the heating element is controlled by cylinder 4, thus completing the bending of the heating element.

[0038] The technical solutions provided in this application have been described in detail above. The embodiments used in this document illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A cylinder-driven electric heating tube bending machine, comprising a worktable, characterized in that: A cylinder is located near the left side of the top of the workbench. A drive rod is located on the right side of the cylinder. The left end of the drive rod is fixedly connected to the power output end of the cylinder. A rack is located on the front side of the drive rod, and a gear is located on the rear side of the rack. A support plate is fixedly connected to the top of the workbench near the right side. The gear is located inside the support plate, and a rotating column is fixedly inserted through the inner cavity of the gear. An arc-shaped groove is opened on the top of the support plate, and a cylinder is movably inserted through the inner cavity of the arc-shaped groove. A fixing plate is located at the bottom of the cylinder and is fixedly connected to the side wall of the rotating column. A rectangular groove is opened on the fixing plate, and a first threaded rod is movably inserted through the inner cavity of the rectangular groove. A first nut is fitted on the outer edge of the first threaded rod. A vertical plate is located near the front side of the bottom of the support plate. A second threaded rod and two sliders are fixedly connected to the bottom of the vertical plate. Two sliding grooves are opened on the top of the support plate, and the sliders are movably connected to the inner cavities of adjacent sliding grooves. A first through groove is opened on the top of the support plate, and the bottom end of the second threaded rod movably inserts through the first through groove and is fitted with a second nut.

2. The cylinder-driven electric heating tube bending machine as described in claim 1, characterized in that: The workbench has a base plate at the bottom, and four support rods are fixedly connected to the top of the base plate. The support rods are fixedly connected to the bottom of the workbench.

3. The cylinder-driven electric heating tube bending machine as described in claim 1, characterized in that: Support frames are fixedly connected to both sides of the cylinder. Two first screws are inserted into the top of the support frame, and the support frame is installed on the top of the workbench by the first screws.

4. The cylinder-driven electric heating tube bending machine as described in claim 1, characterized in that: The rack has two second screws on its front side, and the rack is mounted on the front side of the drive rod by the two second screws.

5. The cylinder-driven electric heating tube bending machine as described in claim 1, characterized in that: Bearings are fixedly inserted into the top of both the workbench and the support plate, and the two ends of the rotating column are fixedly connected through adjacent bearings.

6. The cylinder-driven electric heating tube bending machine as described in claim 1, characterized in that: Limiting blocks are fixedly connected to both the front and rear sides of the first threaded rod. Several limiting grooves are opened on both the front and rear sides of the inner cavity of the rectangular groove. The limiting blocks are movably inserted into the inner cavities of adjacent limiting grooves. The first nut and the first threaded rod are connected by a thread. A first operating rod is fixedly connected to both the front and rear sides of the first nut.

7. The cylinder-driven electric heating tube bending machine as described in claim 1, characterized in that: The second nut and the second threaded rod are connected by a thread, and the second operating rod is fixedly connected to both the front and rear sides of the second nut.

8. The cylinder-driven electric heating tube bending machine as described in claim 1, characterized in that: Two U-shaped rods are provided on the left side of the vertical plate. Two second through slots are opened on the side wall of the vertical plate. The right end of the U-shaped rod passes through the second through slot and is fixedly connected to a connecting plate. A screw hole is opened on the connecting plate. A third threaded rod passes through the inner cavity of the screw hole. A rubber head is fixedly connected to the left end of the third threaded rod. The left side of the rubber head fits against the right side of the vertical plate. The third threaded rod and the screw hole are connected by a thread. A third operating rod is fixedly connected to the top and bottom of the third threaded rod.

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