A spiral coil bending device

Abstract

The present invention belongs to the technical field of processing and manufacturing of spiral coils, and specifically relates to a spiral coil bending device. The present invention includes a circular fixed plate fixed on a hydraulic device, a guide plate fixed on the circular fixed plate, a fixed shaft fixed at the center of the circular fixed plate, and a steel pipe fixed block, a center plate, a guide block and a baffle for supporting the spiral coil that are sequentially sleeved on the fixed shaft. One end of the guide plate is fixed on the circular fixed plate, and the other end is fixed on the center plate. The extension curve of the guide plate is an Archimedean spiral. The extension direction of the guide block is consistent with the extension direction of the guide plate. The steel pipe fixed block is fixed on the center plate, and an opening is provided on the center plate. A limit plate for limiting the position of the pipe fitting is fixed at the opening of the center plate. The steel pipe fixed block and the limit plate form a limit groove for limiting the position of the pipe fitting. The present invention is simple to operate, can effectively improve work efficiency, and can realize the winding of steel pipes of different diameters.

Description

Technical Field

[0001] The invention belongs to the technical field of processing and manufacturing spiral coils, and in particular relates to a spiral coil bending device. Background Art

[0002] Spiral coils are commonly used heat exchange elements in organic heat carrier boilers or heat exchangers. As the power of boilers and heat exchangers continues to increase, the requirements for spiral coil bending equipment are also increasing accordingly. Traditional spiral coil bending work usually uses manual bending or simple equipment to bend, resulting in various key dimensions of the manufactured spiral coils not meeting the requirements, the ovality of the formed steel pipe exceeds the national standard, and it is impossible to form mass production of spiral coils. The current spiral coil bending equipment is generally large-scale mechanical equipment with steel structure, which usually has the disadvantages of high cost and high energy consumption. Therefore, it is necessary to develop a new type of spiral coil bending device with high work efficiency, low cost and the ability to realize winding of steel pipes of different diameters. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of low efficiency, high cost and low precision in the prior art, and to provide a spiral coil bending device with high working efficiency, low cost, high precision and capable of winding steel pipes of different diameters.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] It includes a circular fixing plate fixed on the hydraulic equipment, a guide plate fixed on the circular fixing plate, a fixed shaft fixed at the center of the circular fixing plate, and a steel pipe fixing block, a center plate, a guide block and a baffle plate used to lock with the fixed shaft which are sequentially sleeved on the fixing shaft; one end of the guide plate is fixed on the circular fixing plate, and the other end is fixed on the center plate; the extension curve of the guide plate is an Archimedean spiral; the extension direction of the guide block is consistent with the extension direction of the guide plate; the steel pipe fixing block is fixed on the center plate; an opening is provided on the center plate; a limiting plate for limiting the position of the pipe fitting is fixed at the opening of the center plate; the steel pipe fixing block and the limiting plate form a limiting groove for limiting the position of the pipe fitting.

[0006] Furthermore, a plurality of reinforcing plates are welded between the guide plate and the circular fixing plate.

[0007] Furthermore, the end of the fixed shaft close to one end of the baffle adopts a ball head structure, and two bayonet holes are symmetrically arranged on the fixed shaft.

[0008] Furthermore, a locking device for locking with the fixed shaft is arranged on the baffle, and the baffle is made of rust-proof aluminum material.

[0009] Furthermore, two positioning pins are arranged on the steel pipe fixing block, and the positioning pins pass through the steel pipe fixing block, the center plate and the guide block in sequence.

[0010] Furthermore, the guide block is made of carbon steel.

[0011] The beneficial effects of the spiral coil bending device of the present invention are:

[0012] 1. The present invention places the starting end of the steel pipe into the limiting groove formed by the steel pipe fixing block and the limiting plate, then assembles the guide block, and then locks the device with a baffle plate, starts the hydraulic equipment, and the hydraulic equipment drives the bending device to rotate, so that the steel pipe is wound along the guide block to complete the bending work of the spiral coil. The operation is simple and can effectively improve work efficiency.

[0013] 2. The present invention changes the fixed position of the limit plate on the center plate so that the steel pipe fixing block and the limit plate form limit grooves of different diameters, thereby realizing bending of steel pipes of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] Figure 1 is an overall structural diagram of an embodiment of the present invention;

[0016] Figure 2 is another perspective view of the overall structure of an embodiment of the present invention;

[0017] Figure 3 is an exploded view of the overall structure of an embodiment of the present invention;

[0018] Figure 4 is a shape diagram of a steel pipe fixing block according to an embodiment of the present invention;

[0019] Figure 5 is a shape diagram of a guide block according to an embodiment of the present invention;

[0020] Figure 6 It is a connection diagram of the center plate, the steel pipe fixing block and the limit plate in an embodiment of the present invention.

[0021] In the figure: 1. circular fixing plate, 2. guide plate, 3. fixed shaft, 31. bayonet, 4. steel pipe fixing block, 5. center plate, 6. guide block, 7. baffle, 8. limit plate, 9. limit groove, 10. reinforcement plate, 11. positioning pin. DETAILED DESCRIPTION

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0023] like Figure 1-Figure 6 A specific embodiment of a spiral coil bending device of the present invention shown in the figure comprises a circular fixing plate 1 fixed on a hydraulic device, a guide plate 2 fixed on the circular fixing plate 1, a fixed shaft 3 fixed at the center of the circular fixing plate 1, and a steel pipe fixing block 4, a center plate 5, a guide block 6 and a baffle 7 for locking with the fixed shaft 3 which are sequentially sleeved on the fixed shaft 3; one end of the guide plate 2 is fixed on the circular fixing plate 1, and the other end is fixed on the center plate 5, the extension curve of the guide plate 2 is an Archimedean spiral, the extension direction of the guide block 6 is consistent with the extension direction of the guide plate 2, the steel pipe fixing block 4 is fixed on the center plate 5, an opening is provided on the center plate 5, a limiting plate 8 for limiting the pipe fitting is fixed at the opening of the center plate 5, and the steel pipe fixing block 4 and the limiting plate 8 form a limiting groove 9 for limiting the pipe fitting. First, fix the circular fixing plate 1 of the device on the hydraulic equipment, adjust the direction of the device so that the opening of the center plate 5 is horizontally facing downward, insert the starting end of the steel pipe into the limiting groove 9 formed by the limiting plate 8 and the steel pipe fixing block 4, then assemble the guide block 6, and then lock the baffle 7 with the bayonet 31 on the fixed shaft 3, so as to lock the device, start the hydraulic equipment, and the hydraulic equipment drives the bending device to rotate, so that the steel pipe is wound along the guide block 6, and the winding and forming work of the spiral coil is realized. The operation is simple, and the work efficiency is effectively improved and the product precision is improved.

[0024] like Figure 1 As shown, the guide plate 2 and the circular fixing plate 1 can be better fixed, and a plurality of reinforcing plates 10 are welded between the guide plate 2 and the circular fixing plate 1, so that the guide plate 2 can better play a guiding role in the winding process of the steel pipe, thereby improving the product precision.

[0025] Two positioning pins 11 are arranged on the steel pipe fixing block 4 , and the positioning pins 11 pass through the steel pipe fixing block 4 , the center plate 5 and the guide block 6 in sequence to position the steel pipe fixing block 4 , the center plate 5 and the guide block 6 .

[0026] See also Figure 3 The end of the fixed shaft 3 near the baffle 7 adopts a ball head structure, and two bayonet holes 31 are symmetrically arranged on the fixed shaft 3. The baffle 7 is provided with a locking device locked with the fixed shaft. The locking device is a prior art and will not be elaborated in detail here. The baffle 7 is used to fix the guide block 6 and limit the pipe fitting. In the embodiment, the baffle 7 is locked by locking the locking device of the baffle 7 with the two bayonet holes 31 on the fixed shaft 3. Preferably, the baffle 7 is made of rust-proof aluminum material.

[0027] Preferably, the guide block 6, the guide plate 2 and the reinforcing plate 10 are all made of carbon steel.

[0028] When in use, first fix the circular fixing plate 1 of the device on the hydraulic equipment with hexagon socket bolts, adjust the direction of the device so that the opening of the center plate 5 is horizontally facing downward, insert the beginning of the steel pipe into the limiting groove 9 formed by the limiting plate 8 and the steel pipe fixing block 4, then assemble the guide block 6, and then lock the baffle 7 with the bayonet 31 on the fixed shaft 3, thereby locking the device, start the hydraulic equipment, and the hydraulic equipment drives the bending device to rotate, so that the steel pipe is wound along the guide block 6 to achieve the winding and forming work of the spiral coil, which is simple to operate, effectively improves work efficiency, and improves product accuracy. By changing the welding position of the limiting plate 8 on the center plate 5, so that the limiting plate 8 and the steel pipe fixing block 4 form limiting grooves 9 of different diameters, it is possible to achieve winding of steel pipes of different diameters, and the device has a simple structure, can reduce work costs, and has strong usability.

[0029] It should be understood that the specific embodiments described above are only used to explain the present invention, and are not used to limit the present invention. Obvious changes or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A spiral coil bending device, Features: The invention comprises a circular fixing plate (1) fixed on the hydraulic equipment, a guide plate (2) fixed on the circular fixing plate (1), a fixing shaft (3) fixed at the center of the circular fixing plate (1), and a steel pipe fixing block (4), a center plate (5), a guide block (6) and a baffle (7) used for locking with the fixing shaft (3) in sequence; one end of the guide plate (2) is fixed on the circular fixing plate (1), and the other end is fixed on the center plate (5); the extension curve of the guide plate (2) is an Archimedean spiral; the guide block (6) is a cylindrical shape; and the guide block (6) is a cylindrical shape. ) has an extension direction that is consistent with the extension direction of the guide plate (2); the steel pipe fixing block (4) is fixed on the center plate (5); the center plate (5) is provided with an opening; a limiting plate (8) for limiting the position of the pipe fitting is fixed at the opening of the center plate (5); the steel pipe fixing block (4) and the limiting plate (8) form a limiting groove (9) for limiting the position of the pipe fitting; by changing the welding position of the limiting plate (8) on the center plate (5), the limiting plate (8) and the steel pipe fixing block (4) form limiting grooves (9) of different diameters, thereby enabling winding of steel pipes of different diameters.

2. A spiral coil bending device according to claim 1, Features: A plurality of reinforcing plates (10) are welded between the guide plate (2) and the circular fixing plate (1).

3. A spiral coil bending device according to claim 1, Features: The end of the fixed shaft (3) close to one end of the baffle (7) adopts a ball head structure, and two bayonet holes (31) for locking with the baffle (7) are symmetrically arranged on the fixed shaft (3).

4. A spiral coil bending device according to claim 1, Features: The baffle plate (7) is provided with a locking device for locking with the fixed shaft (3), and the baffle plate (7) is made of rust-proof aluminum material.

5. A spiral coil bending device according to claim 1, Features: The steel pipe fixing block (4) is provided with two positioning pins (11), and the positioning pins (11) pass through the steel pipe fixing block (4), the center plate (5) and the guide block (6) in sequence.

6. A spiral coil bending device according to claim 1, Features: The guide block (6) is made of carbon steel.

7. A method for bending a spiral coil, Features: The spiral coil bending device described in claim 3 is used. First, the circular fixing plate (1) is fixed to the hydraulic equipment with hexagon socket bolts. The direction of the device is adjusted so that the opening of the center plate (5) is horizontally facing downward. The starting end of the steel pipe is inserted into the limiting groove (9) formed by the limiting plate (8) and the steel pipe fixing block (4). Then, the guide block (6) is assembled. Then, the baffle plate (7) and the bayonet (31) on the fixed shaft (3) are locked to lock the device. The hydraulic equipment is started, and the hydraulic equipment drives the bending device to rotate, so that the steel pipe is wound along the guide block 6 to realize the winding and forming of the spiral coil.

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