Coiled pipe bending equipment and method

Abstract

The invention discloses coiled pipe bending equipment and method, and relates to the technical field of bending equipment, the coiled pipe bending equipment comprises a fixed seat, a servo motor is mounted at the top of the fixed seat, and a multi-point positioning bending device is arranged at the top of the servo motor; the device is provided with the multi-point positioning bending device, when the coiled pipe is bent, the multi-point bending positioning function is achieved, and therefore the coiled pipe can be conveniently bent, the bending effect of the coiled pipe can be improved, the purpose that positioning is easy in the bending process is achieved, and the bending stability is improved; the device is provided with an auxiliary positioning device, after a corresponding coiled pipe needing to be bent penetrates through a second positioning bending sleeve and a positioning connecting sleeve, the corresponding face of a connector at one end of a movable column is attached to the outer side of the corresponding coiled pipe needing to be bent, the auxiliary positioning effect is achieved, and the stability of multi-point bending positioning is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of boiler processing equipment, and in particular to the technical field of bending equipment, specifically a serpentine tube bending equipment. Background Art

[0002] A component consisting of three consecutive cylindrical or conical tubes whose axes are not on the same plane is called a serpentine tube. This type of component is the same as a bent tube when unfolded. Each tube section can be assembled into a complete cylindrical or conical tube by rotation and translation to simplify drawing and save sheet materials. However, since the axes are not on the same plane, the joint lines at both ends of each tube section must be staggered at an angle. When unfolding, the unfolding curves of the two joint lines must be staggered along the circumferential direction according to the size of the staggered angle before they can be assembled together. In the production process of serpentine tubes, tube bending equipment is required for the bending process.

[0003] However, the existing serpentine tube bending equipment is not easy to bend at multiple points during use, which affects the bending effect. Therefore, those skilled in the art provide a serpentine tube bending equipment to solve the problems raised in the above background technology. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention proposes a serpentine tube bending device, which aims to solve the problems of inaccurate positioning and poor stability of traditional equipment during the bending process through technical innovation. The present invention realizes multi-point precise positioning of the serpentine tube during the bending process by introducing a multi-point positioning bending device and an auxiliary positioning device, greatly improving the bending accuracy and efficiency. At the same time, by optimizing the equipment structure and adding counterweights, the stability of the bending process is improved, and the error of manual operation is reduced, thereby ensuring the forming quality of the serpentine tube and meeting the demand for high-precision pipe fittings in modern industrial production.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a serpentine tube bending device, comprising a fixed seat, a servo motor is installed on the top of the fixed seat, a multi-point positioning bending device is arranged on the top of the servo motor, an auxiliary positioning device is arranged on the outside of the multi-point positioning bending device, a fixed support frame is fixed on the top of the fixed seat, a first counterweight block is arranged on the outside of the fixed support frame, and a second counterweight block is installed on the outside of the fixed support frame;

[0006] The multi-point positioning and bending device includes a lower fixed frame, a fixed rod is fixed on the top of the lower fixed frame, an upper fixed frame is fixed on the top of the fixed rod, a rotating column is arranged on the top of the output shaft of the servo motor, a bending and fixing sleeve is installed on the outer side of the rotating column, a first positioning and bending sleeve is fixed on the top of the lower fixed frame, a rotating frame is fixed on the outer side of the rotating column, a positioning connecting sleeve is fixed between the corresponding surfaces of the rotating frame, a positioning frame is rotatably connected to the outer side of the fixed rod, and a reinforcement rod is fixed between the corresponding surfaces of the rotating frame.

[0007] As a further solution of the present invention: the lower fixing frame and the fixed support frame are fixedly connected, and the auxiliary positioning device is fixed on the outside of the positioning connection sleeve.

[0008] As a further solution of the present invention: grooves are provided on the outer sides of the first positioning bending sleeve and the bending and fixing sleeve, and an arc-shaped groove is provided between the corresponding surfaces of the second positioning bending sleeve and the positioning connecting sleeve.

[0009] As a further solution of the present invention: the auxiliary positioning device includes a fixed shell, a support spring is provided on the inner wall of one side of the fixed shell, one end of the support spring is connected to a limiting pad, a movable column is fixed to one side of the limiting pad and passes through the other side thereof, a connecting head is fixed to one end of the movable column, a positioning groove is opened inside the fixed shell, and a fixed limiting sleeve is embedded in the interior of the fixed shell.

[0010] As a further solution of the present invention: the fixed shell and the positioning connection sleeve are fixedly connected, and a groove matching the size of the movable column is formed inside the limiting sleeve.

[0011] As a further solution of the present invention: a through hole is opened inside the fixed shell, and the size of the through hole is adapted to the size of the movable column.

[0012] Another aspect of the present invention provides a serpentine tube bending method, comprising the following steps:

[0013] S10: passing the serpentine tube through the second positioning bending sleeve and the positioning connecting sleeve;

[0014] S20: Passing the serpentine tube further through the first positioning bending sleeve;

[0015] S30: Start the servo motor, and drive the rotating column to rotate through the output shaft of the servo motor;

[0016] S40: The rotating column drives the rotating frame to rotate, so that the second positioning bending sleeve and the positioning connecting sleeve rotate simultaneously, so as to realize multi-point bending positioning of the serpentine tube;

[0017] S50: The serpentine tube is bent through the coordinated action of the bending fixing sleeve, the first positioning bending sleeve, the second positioning bending sleeve and the positioning connecting sleeve, thereby improving the bending effect and positioning stability.

[0018] As a further solution of the present invention: in step S10, the auxiliary positioning device is fixed on the outside of the positioning connecting sleeve, and the limit pad is pushed by the support spring in the fixed shell to make the connecting head of the movable column fit on the outside of the serpentine tube to achieve auxiliary positioning.

[0019] As a further solution of the present invention: in step S30, a rotating column is arranged on the top of the output shaft of the servo motor, and a bending fixing sleeve is installed on the outer side of the rotating column. When the rotating column rotates, the bending fixing sleeve is driven to rotate synchronously to realize precise bending of the serpentine tube.

[0020] As a further solution of the present invention: in step S40, grooves are provided on the outer sides of the first positioning bending sleeve and the bending fixing sleeve, and arc-shaped grooves are provided between the corresponding surfaces of the second positioning bending sleeve and the positioning connecting sleeve. The design of these grooves improves the positioning accuracy during bending and the bending quality of the serpentine tube.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The device is provided with a multi-point positioning bending device. When the serpentine tube is bent, the multi-point bending positioning of the serpentine tube can be performed through the bending fixing sleeve, the first positioning bending sleeve, the second positioning bending sleeve and the positioning connecting sleeve, which plays the function of multi-point bending positioning, thereby conveniently bending the serpentine tube, improving the bending effect of the serpentine tube, achieving the purpose of easy positioning during the bending process, and improving the stability during bending;

[0023] 2. This device is equipped with an auxiliary positioning device. When the corresponding serpentine tube that needs to be bent passes through the second positioning bending sleeve and the positioning connecting sleeve, the corresponding surface of the connector at one end of the movable column is fitted to the outer side of the corresponding serpentine tube that needs to be bent, which plays an auxiliary positioning role and further improves the stability of multi-point bending positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of a serpentine tube bending device according to the present invention;

[0025] Figure 2 It is a schematic structural diagram of a multi-point positioning bending device of a serpentine tube bending device of the present invention;

[0026] Figure 3 It is a schematic diagram of the outer structure of a multi-point positioning bending device of a serpentine tube bending device of the present invention;

[0027] Figure 4It is a structural schematic diagram of an auxiliary positioning device of a serpentine tube bending device of the present invention.

[0028] Numbers in the figure: 1. fixed seat; 2. servo motor; 3. auxiliary positioning device; 31. fixed shell; 32. support spring; 33. limit pad; 34. movable column; 35. connecting head; 36. positioning groove; 37. limit sleeve; 4. multi-point positioning bending device; 41. lower fixed frame; 42. fixed rod; 43. upper fixed frame; 44. rotating column; 45. bending and fixing sleeve; 46. first positioning bending sleeve; 47. second positioning bending sleeve; 48. rotating frame; 49. positioning connecting sleeve; 410. positioning frame; 411. reinforcement rod; 5. fixed support frame; 6. first counterweight block; 7. second counterweight block. DETAILED DESCRIPTION

[0029] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 3 The present invention provides a serpentine tube bending device, comprising a fixed seat 1, a servo motor 2 is installed on the top of the fixed seat 1, a multi-point positioning bending device 4 is arranged on the top of the servo motor 2, an auxiliary positioning device 3 is arranged on the outside of the multi-point positioning bending device 4, a fixed support frame 5 is fixed on the top of the fixed seat 1, a first counterweight block 6 is arranged on the outside of the fixed support frame 5, and a second counterweight block 7 is installed on the outside of the fixed support frame 5;

[0031] The multi-point positioning and bending device 4 includes a lower fixing frame 41, a fixing rod 42 is fixed on the top of the lower fixing frame 41, an upper fixing frame 43 is fixed on the top of the fixing rod 42, a rotating column 44 is arranged on the top of the output shaft of the servo motor 2, a bending fixing sleeve 45 is installed on the outer side of the rotating column 44, a first positioning and bending sleeve 46 is fixed on the top of the lower fixing frame 41, a rotating frame 48 is fixed on the outer side of the rotating column 44, a positioning connecting sleeve 49 is fixed between the corresponding surfaces of the rotating frame 48, a positioning frame 410 is rotatably connected to the outer side of the fixing rod 42, a reinforcing rod 411 is fixed between the corresponding surfaces of the rotating frame 48, the lower fixing frame 41 and the fixed support frame 5 are fixedly connected, the auxiliary positioning device 3 is fixed on the outer side of the positioning connecting sleeve 49, and the corresponding serpentine pipe to be bent is passed through The second positioning bending sleeve 47 and the positioning connecting sleeve 49 are passed through, and the serpentine tube is passed through the first positioning bending sleeve 46. Then the servo motor 2 can be started, and the rotating column 44 can be driven to rotate by the output shaft of the servo motor 2. The rotating column 44 can drive the rotating frame 48 fixedly connected to it to rotate, and the rotating frame 48 can allow the second positioning bending sleeve 47 and the positioning connecting sleeve 49 fixedly connected to it to rotate at the same time. The serpentine tube can be bent and positioned at multiple points by the bending fixing sleeve 45, the first positioning bending sleeve 46, the second positioning bending sleeve 47 and the positioning connecting sleeve 49, thereby achieving the function of multi-point bending positioning. Grooves are provided on the outer sides of the first positioning bending sleeve 46 and the bending fixing sleeve 45, and arc-shaped grooves are provided between the corresponding surfaces of the second positioning bending sleeve 47 and the positioning connecting sleeve 49.

[0032] During the use of this device, when bending the serpentine tube, the corresponding serpentine tube that needs to be bent is first passed through the second positioning bending sleeve 47 and the positioning connecting sleeve 49, and the serpentine tube is passed through the first positioning bending sleeve 46. Then the servo motor 2 can be started, and the rotating column 44 can be driven to rotate by the output shaft of the servo motor 2. The rotating column 44 can drive the rotating frame 48 fixedly connected to it to rotate, and the rotating frame 48 can allow the second positioning bending sleeve 47 and the positioning connecting sleeve 49 fixedly connected to it to rotate at the same time. The serpentine tube can be bent and positioned at multiple points by the bending fixing sleeve 45, the first positioning bending sleeve 46, the second positioning bending sleeve 47 and the positioning connecting sleeve 49, which plays the function of multi-point bending positioning, so that the serpentine tube can be bent conveniently, the bending effect of the serpentine tube can be improved, the purpose of easy positioning during the bending process is achieved, and the stability during bending is improved.

[0033] See also Figure 1 and Figure 4The present invention provides a serpentine tube bending device, wherein the auxiliary positioning device 3 comprises a fixed shell 31, a supporting spring 32 is arranged on the inner wall of one side of the fixed shell 31, one end of the supporting spring 32 is connected to a limiting pad 33, a moving column 34 penetrating the other side of the limiting pad 33 is fixed on one side, a connecting head 35 is fixed on one end of the moving column 34, a through hole is provided inside the fixed shell 31, and the size of the through hole is adapted to the size of the moving column 34, the fixed shell 31 is fixed to the outer side of the positioning connecting sleeve 49, and the supporting spring 32 in the fixed shell 31 provides elastic force, so that the supporting spring 32 can push the limiting pad 33, so that the limiting pad 33 drives the moving column 34 fixedly connected thereto to move, so that the corresponding surface of the connecting head 35 at one end of the moving column 34 is fitted on the outer side of the corresponding serpentine tube to be bent, a positioning groove 36 is provided inside the fixed shell 31, and a limiting sleeve 37 is embedded and fixed inside the fixed shell 31, the fixed shell 31 and the positioning connecting sleeve 49 are fixedly connected, and a groove adapted to the size of the moving column 34 is provided inside the limiting sleeve 37.

[0034] During use of the device, when the corresponding serpentine tube that needs to be bent passes through the second positioning bending sleeve 47 and the positioning connecting sleeve 49, the fixed shell 31 is fixed to the outside of the positioning connecting sleeve 49, and the elastic force provided by the support spring 32 in the fixed shell 31 can allow the support spring 32 to push the limit pad 33, so that the limit pad 33 drives the movable column 34 fixedly connected to it to move, so that the corresponding surface of the connecting head 35 at one end of the movable column 34 is attached to the outside of the corresponding serpentine tube that needs to be bent, which plays a role of auxiliary positioning and further improves the stability of multi-point bending positioning.

[0035] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A serpentine tube bending device, characterized in that: The invention comprises a fixed seat (1), a servo motor (2) is installed on the top of the fixed seat (1), a multi-point positioning bending device (4) is arranged on the top of the servo motor (2), an auxiliary positioning device (3) is arranged on the outside of the multi-point positioning bending device (4), a fixed support frame (5) is fixed on the top of the fixed seat (1), a first counterweight block (6) is arranged on the outside of the fixed support frame (5), and a second counterweight block (7) is installed on the outside of the fixed support frame (5); The multi-point positioning and bending device (4) comprises a lower fixed frame (41), a fixed rod (42) is fixed on the top of the lower fixed frame (41), an upper fixed frame (43) is fixed on the top of the fixed rod (42), a rotating column (44) is arranged on the top of the output shaft of the servo motor (2), a bending fixing sleeve (45) is installed on the outer side of the rotating column (44), a first positioning and bending sleeve (46) is fixed on the top of the lower fixed frame (41), a rotating frame (48) is fixed on the outer side of the rotating column (44), a positioning connecting sleeve (49) is fixed between corresponding surfaces of the rotating frame (48), a positioning frame (410) is rotatably connected to the outer side of the fixed rod (42), and a reinforcing rod (411) is fixed between corresponding surfaces of the rotating frame (48).

2. The serpentine tube bending device according to claim 1, characterized in that: The lower fixing frame (41) and the fixing support frame (5) are fixedly connected, and the auxiliary positioning device (3) is fixed on the outside of the positioning connection sleeve (49).

3. The serpentine tube bending device according to claim 1, characterized in that: Grooves are provided on the outer sides of the first positioning bending sleeve (46) and the bending fixing sleeve (45), and arc-shaped grooves are provided between corresponding surfaces of the second positioning bending sleeve (47) and the positioning connecting sleeve (49).

4. The serpentine tube bending device according to claim 1, characterized in that: The auxiliary positioning device (3) comprises a fixed shell (31), a support spring (32) is arranged on an inner wall of one side of the fixed shell (31), one end of the support spring (32) is connected to a limit pad (33), one side of the limit pad (33) is fixed with a movable column (34) passing through the other side thereof, one end of the movable column (34) is fixed with a connector (35), a positioning groove (36) is provided inside the fixed shell (31), and a limit sleeve (37) is embedded and fixed inside the fixed shell (31).

5. The serpentine tube bending device according to claim 4, characterized in that: The fixed shell (31) and the positioning connection sleeve (49) are fixedly connected, and a groove matching the size of the movable column (34) is provided inside the limiting sleeve (37).

6. The serpentine tube bending device according to claim 4, characterized in that: A through hole is provided inside the fixed shell (31), and the size of the through hole matches the size of the movable column (34).

7. A method for bending a serpentine tube, characterized in that: The following steps are involved: S10: Pass the serpentine tube through the second positioning bending sleeve (47) and the positioning connecting sleeve (49); S20: The serpentine tube is further passed through the first positioning bending sleeve (46); S30: starting the servo motor (2) to drive the rotating column (44) to rotate via the output shaft of the servo motor (2); S40: The rotating column (44) drives the rotating frame (48) to rotate, so that the second positioning bending sleeve (47) and the positioning connecting sleeve (49) rotate simultaneously, thereby realizing multi-point bending positioning of the serpentine tube; S50: The serpentine tube is bent through the coordinated action of the bending fixing sleeve (45), the first positioning bending sleeve (46), the second positioning bending sleeve (47) and the positioning connecting sleeve (49), thereby improving the bending effect and positioning stability.

8. The serpentine tube bending method according to claim 7, characterized in that: In step S10, the auxiliary positioning device (3) is fixed to the outside of the positioning connection sleeve (49), and the support spring (32) in the fixed shell (31) pushes the limit pad (33) so that the connecting head of the movable column (34) fits on the outside of the serpentine tube to achieve auxiliary positioning.

9. The serpentine tube bending method according to claim 7, characterized in that: In step S30, a rotating column (44) is provided at the top of the output shaft of the servo motor (2), and a bending fixing sleeve (45) is installed on the outer side of the rotating column (44). When the rotating column (44) rotates, the bending fixing sleeve (45) is driven to rotate synchronously to achieve accurate bending of the serpentine tube.

10. The serpentine tube bending method according to claim 7, characterized in that: In step S40, grooves are provided on the outer sides of the first positioning bending sleeve (46) and the bending fixing sleeve (45), and arc-shaped grooves are provided between the corresponding surfaces of the second positioning bending sleeve (47) and the positioning connecting sleeve (49). The design of these grooves improves the positioning accuracy during bending and the bending quality of the serpentine tube.

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