Special-shaped copper pipe bending jig

Abstract

The utility model discloses a kind of special-shaped copper pipe bending jigs, it is related to copper pipe processing technical field, including equipment cabinet, equipment cabinet top end is equipped with hydraulic cylinder and movable seat, movable seat one side is equipped with lower toothed plate, the other side is equipped with upper toothed plate, inside rotation connecting shaft rod, the lower gear meshed with lower toothed plate is fixedly connected in the bottom of shaft rod, top rotation connecting shaft cylinder, the upper gear meshed with upper toothed plate is fixedly connected in the bottom of shaft cylinder;Shaft rod top end is connected with first boss column, shaft rod, shaft cylinder top is eccentric through outer extension plate and is connected with second boss column, third boss column, first boss column side is equipped with fourth boss column, equipment cabinet top end is also equipped with bearing seat, seat body.This jig is matched by multiple components, can accurately control copper pipe bending process, avoid copper pipe bending defect, ensure special-shaped copper pipe processing precision and quality, improve processing efficiency, applicable to special-shaped copper pipe bending operation.

Description

Technical Field

[0001] This utility model relates to the field of copper tube processing technology, and in particular to a bending fixture for irregularly shaped copper tubes. Background Technology

[0002] In the field of copper tube processing, irregularly shaped copper tubes are increasingly widely used due to their suitability for specific equipment assembly requirements. Bending is a key production step. Currently, commonly used copper tube bending equipment mostly adopts a single mold or a fixed trajectory transmission structure to achieve bending operations.

[0003] Traditional equipment has significant limitations: Firstly, it is difficult to apply precise and differentiated forces to different parts of the copper tube during bending, which can easily lead to uneven deformation and wrinkles in the tube wall at the bend. This is especially true for copper tubes with complex irregular shapes, making it difficult to guarantee dimensional accuracy and appearance quality after bending. Secondly, the transmission components of traditional equipment lack stability, making the copper tube prone to axial displacement or offset during bending, further affecting processing accuracy. Moreover, changing bending dies of different specifications is cumbersome and has poor adaptability, failing to efficiently meet the processing needs of diverse irregular copper tubes, thus restricting the improvement of production efficiency and product qualification rate. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a bending fixture for irregularly shaped copper tubes.

[0005] This utility model proposes a bending fixture for irregularly shaped copper tubes, including an equipment cabinet. A hydraulic cylinder is fixedly installed at the top of the equipment cabinet, and a movable seat is slidably connected thereto. A lower toothed plate is installed at the bottom of one side of the movable seat, and an upper toothed plate is installed at the top of the other side. A shaft is rotatably connected inside the movable seat. A lower gear that meshes with the lower toothed plate is fixed at the bottom of the shaft. A shaft cylinder is rotatably connected at the top of the shaft. An upper gear that meshes with the upper toothed plate is fixed at the bottom of the shaft cylinder. The top of the shaft extends above the shaft cylinder and is connected to a first protrusion. A second protrusion and a third protrusion are eccentrically connected to the top of the shaft and the shaft cylinder, respectively. A fourth protrusion is symmetrically arranged beside the first protrusion. An unbent copper tube is arranged between the first, second, and third protrusions.

[0006] Furthermore, a bearing housing is installed at the top of the equipment cabinet, and the shaft rotates inside the bearing housing.

[0007] Furthermore, the shaft and the cylinder are rotatably connected by several bearings.

[0008] Furthermore, the top of the shaft is eccentrically connected to the second protrusion via a first extension plate, and the top of the shaft cylinder is eccentrically connected to the third protrusion via a second extension plate.

[0009] Furthermore, a base is installed at the top of the equipment cabinet. The base is symmetrically arranged on both sides of the movable seat. A guide groove is opened on the inner side of the base. Guide protrusions are installed on both sides of the movable seat. The guide protrusions slide inside the guide groove and are adapted to each other.

[0010] Furthermore, a support is installed on the outer side of one of the seats, and the fourth protruding post is symmetrically installed on the top of the support.

[0011] The beneficial effects of this utility model are as follows: By driving the movable seat to slide through the hydraulic cylinder, and cooperating with the meshing transmission of the lower toothed plate and the lower gear, and the upper toothed plate and the upper gear, the shaft and the cylinder can rotate in opposite directions. Combined with the multi-directional action of the first, second, and third protrusions on the copper tube and the limiting action of the fourth protrusion, and with the guiding cooperation of the seat guide groove and the movable seat guide protrusion, the bending process of the copper tube can be precisely controlled, effectively avoiding uneven deformation, tube wall wrinkles, and axial displacement at the bending point of the copper tube. This ensures the dimensional accuracy and appearance quality of the irregularly shaped copper tube after bending, and can adapt to the processing needs of irregularly shaped copper tubes without frequent mold changes, thereby improving processing efficiency and product qualification rate. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the disassembled structure of this utility model; Figure 2 This is a schematic diagram of the structure of the copper tube in this utility model when it is not bent; Figure 3 In this utility model Figure 2 Top view; Figure 4 This utility model Figure 3 Sectional view of AA; Figure 5 This is a schematic diagram of the structure of the copper tube after it has been bent and formed in this utility model.

[0013] In the diagram: 1. Equipment cabinet; 2. Hydraulic cylinder; 3. Movable seat; 4. Bearing seat; 5. Shaft; 6. First protrusion; 7. Lower gear; 8. Shaft cylinder; 9. Upper gear; 10. First extension plate; 11. Second protrusion; 12. Second extension plate; 13. Third protrusion; 14. Lower gear plate; 15. Upper gear plate; 16. Support; 17. Fourth protrusion; 18. Bearing; 19. Seat body; 20. Guide groove; 21. Guide protrusion; 22. Copper pipe. Detailed Implementation

[0014] Reference Figures 1-5The present invention proposes a special-shaped copper tube bending fixture, including an equipment cabinet 1. A hydraulic cylinder 2 for providing power is fixedly installed at the top of the equipment cabinet 1, and a movable seat 3 is slidably connected thereto. The output end of the hydraulic cylinder 2 is connected to the movable seat 3, which can drive the movable seat 3 to slide back and forth along the top of the equipment cabinet 1, providing a power source for subsequent gear transmission and copper tube bending action. To achieve transmission and bending functions, a lower gear plate 14 is installed on the bottom of one side of the movable seat 3, and an upper gear plate 15 is installed on the top of the other side. A shaft 5 is rotatably connected inside the movable seat 3. A bearing seat 4 installed at the top of the equipment cabinet 1 limits and assists the rotation of the shaft 5, ensuring stable rotation within the bearing seat 4 and preventing deviation or wobbling during rotation. A lower gear 7, meshing with the lower gear plate 14, is fixed at the bottom of the shaft 5, and a shaft sleeve 8 is rotatably connected to the top of the shaft 5. The two are connected by several bearings 18, which ensure the stability of the shaft. The rod 5 and the shaft cylinder 8 can rotate relatively independently, which can reduce the friction loss between them, improve the transmission efficiency and the service life of the components. The bottom of the shaft cylinder 8 is fixed with an upper gear 9 that meshes with the upper gear plate 15. When the hydraulic cylinder 2 drives the movable seat 3 to slide, the lower gear plate 14 will drive the lower gear 7 to rotate, thereby driving the shaft rod 5 to rotate synchronously. At the same time, the upper gear plate 15 drives the upper gear 9 to rotate, driving the shaft cylinder 8 to rotate. Since the lower gear plate 14 and the upper gear plate 15 are located at different positions on both sides of the movable seat 3, the shaft rod 5 and the shaft cylinder 8 can rotate in opposite directions, providing a basis for the subsequent bending of the copper tube. The top of the shaft 5 extends above the shaft cylinder 8 and is connected to the first protrusion 6. The top of the shaft 5 is eccentrically connected to the second protrusion 11 through the first extension plate 10. The top of the shaft cylinder 8 is eccentrically connected to the third protrusion 13 through the second extension plate 12. The fourth protrusion 17 is symmetrically arranged on the side of the first protrusion 6. The fourth protrusion 17 is installed on the outside of one of the seats 19 through the support 16. The support 16 provides stable installation support for the fourth protrusion 17. Before the copper tube bending operation, the unbent copper tube 22 is placed between the first protrusion 6, the second protrusion 11, and the third protrusion 13. When the shaft 5 and the shaft cylinder 8 rotate in opposite directions, they will drive the second protrusion 11 and the third protrusion 13 to rotate in opposite directions, thereby bending the copper tube 22. During the bending process, the first protrusion 6 and the fourth protrusion 17 play the roles of shaping, supporting and limiting, applying forces in different directions to the copper tube 22, thereby realizing the irregular bending and forming of the copper tube 22. To ensure the stability and precision of the sliding process of the movable seat 3, a seat body 19 is symmetrically installed on the top of the equipment cabinet 1, and the seat body 19 is located on both sides of the movable seat 3. A guide groove 20 is opened on the inner side of the seat body 19. Guide protrusions 21 are installed on both sides of the movable seat 3. The shape and size of the guide protrusions 21 are adapted to the guide grooves 20, and the guide protrusions 21 can slide inside the guide grooves 20. When the hydraulic cylinder 2 drives the movable seat 3 to slide, the guide protrusions 21 will slide synchronously along the guide grooves 20, which plays a guiding and limiting role on the sliding trajectory of the movable seat 3, preventing the movable seat 3 from deviating during sliding, and ensuring that the lower toothed plate 14 and the lower gear 7, and the upper toothed plate 15 and the upper gear 9 always maintain a stable meshing state, thereby ensuring the precision and reliability of the bending action, and finally realizing the efficient and precise irregular bending processing of copper tubes.

[0015] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A bending fixture for irregularly shaped copper tubes, comprising an equipment cabinet (1), characterized in that, A hydraulic cylinder (2) is fixedly installed at the top of the equipment cabinet (1), and a movable seat (3) is slidably connected thereto. A lower gear plate (14) is installed at the bottom of one side of the movable seat (3), and an upper gear plate (15) is installed at the top of the other side. A shaft (5) is rotatably connected inside the movable seat (3). A lower gear (7) that meshes with the lower gear plate (14) is fixed at the bottom of the shaft (5). A shaft cylinder (8) is rotatably connected to the top of the shaft (5), and the bottom of the shaft cylinder (8) is fixed. There is an upper gear (9) that meshes with the upper gear plate (15). The top end of the shaft (5) extends to the top of the shaft cylinder (8) and is connected to a first protrusion (6). The top of the shaft (5) and the shaft cylinder (8) are eccentrically connected to a second protrusion (11) and a third protrusion (13). A fourth protrusion (17) is symmetrically arranged on the side of the first protrusion (6). An unbent copper tube (22) is arranged between the first protrusion (6), the second protrusion (11), and the third protrusion (13).

2. The irregular copper tube bending fixture according to claim 1, characterized in that, The top of the equipment cabinet (1) is equipped with a bearing seat (4), and the shaft (5) rotates inside the bearing seat (4).

3. The irregular copper tube bending fixture according to claim 1, characterized in that, The shaft (5) and the cylinder (8) are rotatably connected by several bearings (18).

4. The irregular copper tube bending fixture according to claim 1, characterized in that, The top of the shaft (5) is eccentrically connected to the second protrusion (11) through the first extension plate (10), and the top of the shaft cylinder (8) is eccentrically connected to the third protrusion (13) through the second extension plate (12).

5. The irregular copper tube bending fixture according to claim 1, characterized in that, The top of the equipment cabinet (1) is also equipped with a base (19). The base (19) is symmetrically arranged on both sides of the movable seat (3). A guide groove (20) is opened on the inner side of the base (19). Guide protrusions (21) are installed on both sides of the movable seat (3). The guide protrusions (21) slide inside the guide groove (20) and are compatible with each other.

6. The irregular copper tube bending fixture according to claim 5, characterized in that, A support (16) is installed on the outside of one of the seats (19), and the fourth protrusion (17) is symmetrically installed on the top of the support (16).

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