Flat tube coiled pipe bending machine

Abstract

The present invention discloses a flat tube coiled tube bending machine, which includes a workbench arranged on a machine tool. A material box fixed by a frame is provided on the workbench. A feeding device, a bending device and a controller are installed on the material box. A corresponding material supporting device and a circular die device are installed on the workbench. The feeding device is located above the material supporting device, and the bending device is located above the circular die device. When the flat tube to be processed is placed in the material supporting device, the feeding device sends the flat tube to the circular die device, and the bending device bends the flat tube to be processed into a coiled tube. By the above method, the present invention can solve the problem that the bending device has no entanglement of encoder wires and power supply wires. The bending device has a small structure, light weight, high speed, and all the moving parts of the whole bending device are servo motors.

Description

Technical Field

[0001] The present invention relates to the field of bent pipe manufacturing, and particularly to a flat pipe coiled pipe bending machine. Background Art

[0002] The requirements for the parallelism of the evaporator bent pipe and the perpendicularity of the two side pipes to the lower section are relatively high. Therefore, the quality requirements for the bent pipe are very high. The existing transverse moving plate of the bending head is designed with a servo motor and a lead screw. The rotation of the head is the encoder wire and the power line, which are wound around each other, resulting in poor durability and frequent wire breaks. Moreover, the mechanisms such as the motor and the lead screw are heavy and have a large moment of inertia, which is not conducive to improving the speed. Summary of the Invention

[0003] The main technical problem to be solved by the present invention is to provide a flat pipe coiled pipe bending machine, which can solve the problem of no winding of the encoder wire and the power line in the bending device. The bending device has a small structure, light weight, high speed, and all the moving parts of the entire bending device are servo motors.

[0004] To solve the above technical problem, a technical solution adopted by the present invention is: to provide a flat pipe coiled pipe bending machine, which includes a workbench arranged on the machine tool. A material box fixed by a frame is arranged on the workbench. An upper feeding device, a pipe bending device, and a controller are installed on the material box. A corresponding material supporting device and a circular die device are installed on the workbench. The upper feeding device is located above the material supporting device, and the pipe bending device is located above the circular die device. When the flat pipe to be processed is placed in the material supporting device, the upper feeding device sends the flat pipe to the circular die device, and the pipe bending device bends the flat pipe to be processed into a coiled pipe.

[0005] Furthermore, the pipe bending device includes a mounting plate, the mounting plate is fixed to the material box through a left-right adjustment device, an up-down adjustment device is installed on the side of the mounting plate opposite to the material box, and a bending device is installed on the up-down adjustment device.

[0006] Furthermore, the bending device includes a bending fixed bracket, on which a bending servo motor and a left-right bending switching servo motor are installed. The output end of the bending servo motor is equipped with a bending gear. The left-right bending switching servo motor is installed with a gear sleeve through a bearing. The gear sleeve is provided with a left-right bending gear that cooperates with the bending gear. The lower end of the gear sleeve is fixedly installed with a bending fixed plate. The bending fixed plate is provided with a bending fixed plate connected by a linear slide rail. The bending fixed plate is provided with a rack. The output shaft of the left-right bending switching servo motor passes through the gear sleeve and the bending fixed plate and is provided with a left-right switching gear. The left-right switching gear meshes with the rack. The gear sleeve is coaxial with the output shaft of the left-right bending switching servo motor. The lower end face of the bending fixed plate is installed with a linear slide rail. The slider of the linear slide rail is installed with a bending support plate. The bending support plate is installed with a bending plate. When the bending plate bends the flat tube to be processed, one of its vertical intersection lines rotates around the axis line of the output shaft of the left-right bending switching servo motor.

[0007] Furthermore, the left-right adjustment device includes a mounting plate and a material box connected and fixed by a horizontal linear slide rail. The material box is installed with a left-right adjustment servo motor. The mounting plate is fixed with a left-right adjustment connecting plate. The left-right adjustment connecting plate is fixedly connected with the movable end of the left-right adjustment servo motor.

[0008] Furthermore, the up-down adjustment device includes a vertical linear slide rail and an up-down servo motor installed on the mounting plate. The bending device is installed on the linear slide rail. The movable end of the up-down servo motor is fixedly connected with the bending device.

[0009] Furthermore, the feeding device is installed on the feeding bottom plate at the lower end face of the material box. Two parallel linear slide rails are fixedly installed on the feeding bottom plate. The slider of the linear slide rail is installed with a feeding mounting plate. The feeding mounting plate is installed with a feeding fixed support plate. The feeding fixed support plate is fixedly installed with a feeding connecting plate. The feeding connecting plate is fixedly installed with a pneumatic gripper. The feeding bottom plate is installed with a feeding servo motor. The output end of the feeding servo motor is connected with a lead screw. The lead screw is connected with the feeding mounting plate.

[0010] Furthermore, the material supporting device includes a bracket fixed on the machine tool. The bracket is fixedly installed with a limiting frame. The limiting frame is provided with a limiting groove.

[0011] Furthermore, the round die device includes a round die base. The round die base is installed with a pneumatic gripper. The pneumatic gripper is provided with a clamping module. The gap between the two clamping modules is the thickness of the flat tube.

[0012] Furthermore, a pushing device is also provided on the workbench. The pushing device includes a longitudinal pushing device and a transverse pushing device. Longitudinal chutes and transverse chutes are provided on the workbench corresponding to the longitudinal pushing device and the transverse pushing device. The longitudinal pushing device includes a slide rail fixed to the bottom surface of the workbench and a motor. The output end of the motor is fixed to the slider of the slide rail. A longitudinal pushing plate passing through the chute and located on the workbench is provided on the slider. The transverse pushing device includes a slide rail fixed to the bottom surface of the workbench and a motor. The output end of the motor is fixed to the slider of the slide rail. A transverse pushing plate passing through the chute and located on the workbench is provided on the slider.

[0013] The beneficial effects of the present invention are as follows: A flat tube and coiled tube bending machine of the present invention can solve the problem of entanglement of encoder wires and power supply wires in the bending device. The bending device has a small structure, light weight, high speed, and all moving parts of the entire bending device are servo motors. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 is a schematic structural diagram of a flat tube and coiled tube bending machine of the present invention;

[0016] Figure 2 is a schematic structural diagram of the bending device of a flat tube and coiled tube bending machine of the present invention;

[0017] Figure 3 is a schematic structural diagram of the feeding device of a flat tube and coiled tube bending machine of the present invention;

[0018] Figure 4 is a schematic structural diagram of the supporting device of a flat tube and coiled tube bending machine of the present invention;

[0019] Figure 5 is a schematic structural diagram of the circular die device of a flat tube and coiled tube bending machine of the present invention.

[0020] 1. Machine tool; 2. Workbench; 3. Feed box; 4. Loading device; 5. Pipe bending device; 6. Controller; 7. Stock supporting device; 8. Round die device; 9. Mounting plate; 10. Bending fixed bracket; 11. Bending servo motor; 12. Left - right bending switching servo motor; 13. Bending gear; 14. Gear sleeve; 15. Left - right bending gear; 16. Bending fixed plate; 17. Linear slide rail; 18. Bending fixed plate; 19. Rack; 21. Linear slide rail; 22. Bending support plate; 23. Bending plate; 24. Linear slide rail; 25. Left - right adjustment servo motor; 26. Left - right adjustment connecting plate; 27. Up - down servo motor; 28. Loading bottom plate; 29. Loading mounting plate; 30. Loading fixed support plate; 31. Loading connecting plate; 32. Pneumatic gripper; 33. Loading servo motor; 34. Lead screw; 35. Bracket; 36. Limit frame; 37. Limit groove; 38. Round die base; 39. Pneumatic gripper; 40. Clamping module; 41. Pushing device; 42. Longitudinal chute; 43. Transverse chute; 44. Longitudinal push plate; 45. Transverse push plate. Detailed implementation manners

[0021] To make the objectives, technical solutions and advantages of the present invention clearer, the following will detail the specific implementation manners of the present invention with reference to the accompanying drawings. Examples of these preferred implementation manners are illustrated in the drawings. The implementation manners of the present invention shown in the drawings and described according to the drawings are merely exemplary, and the present invention is not limited to these implementation manners.

[0022] Here, it should also be noted that in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution of the present invention are shown in the drawings, while other details less related to the present invention are omitted.

[0023] In addition, in the description of the present invention, the orientation or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. Furthermore, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] Please refer to Figures 1 to 5, embodiments of the present invention include: a flat tube coiled tube bending machine, which includes a workbench 2 provided on a machine tool 1. A material box 3 fixed by a frame is provided on the workbench 2. A feeding device 4, a bending device 5 and a controller 6 are installed on the material box 3. A corresponding material supporting device 7 and a circular die device 8 are installed on the workbench 2. The feeding device 4 is located above the material supporting device 7, and the bending device 5 is located above the circular die device 8. When the flat tube to be processed is placed in the material supporting device 7, the feeding device 4 sends the flat tube to the circular die device 8, and the bending device 8 bends the flat tube to be processed into a coiled tube.

[0025] Furthermore, the bending device 5 includes a mounting plate 9, which is fixed to the material box 3 through a left-right adjustment device. A up-down adjustment device is installed on the side of the mounting plate relative to the material box, and a bending device is installed on the up-down adjustment device.

[0026] Furthermore, the bending device includes a bending fixed bracket 10. A bending servo motor 11 and a left-right bending switching servo motor 12 are installed on the bending fixed bracket 10. A bending gear 13 is installed at the output end of the bending servo motor 11. A gear sleeve 14 is installed on the left-right bending switching servo motor 12 through a bearing. Left-right bending gears 15 that cooperate with the bending gear 13 are provided on the gear sleeve 14. A bending fixed plate 16 is fixedly installed at the lower end of the gear sleeve 14. A bending fixed plate 18 connected through a linear slide rail 17 is provided on the bending fixed plate 16. A rack 19 is provided on the bending fixed plate 18. The output shaft of the left-right bending switching servo motor 12 passes through the gear sleeve 14 and the bending fixed plate 18 and then is provided with a left-right switching gear, which meshes with the rack 19. The gear sleeve 14 and the output shaft of the left-right bending switching servo motor 12 are coaxial. A linear slide rail 21 is installed on the lower end surface of the bending fixed plate 16. A bending support plate 22 is installed on the slider of the linear slide rail 21. A bending plate 23 is installed on the bending support plate 22. When the bending plate 23 bends the flat tube to be processed, one vertical intersection line rotates around the axis line of the output shaft of the left-right bending switching servo motor 12.

[0027] Furthermore, the left-right adjustment device includes that the mounting plate 9 is connected and fixed to the material box 3 through a horizontal linear slide rail 24. A left-right adjustment servo motor 25 is installed on the material box 3. A left-right adjustment connecting plate 26 is fixed on the mounting plate 9, and the left-right adjustment connecting plate 24 is fixedly connected to the movable end of the left-right adjustment servo motor 25.

[0028] Furthermore, the up-down adjustment device includes a longitudinal linear slide rail and an up-down servo motor 27 installed on the mounting plate 9. A bending fixed bracket 10 is installed on the linear slide rail, and the movable end of the up-down servo motor 27 is fixedly connected to the bending fixed bracket 10.

[0029] Furthermore, the feeding device is installed on the feeding bottom plate 28 at the lower end face of the material box 3. Two parallel linear sliding rails are fixedly installed on the feeding bottom plate 28. A feeding mounting plate 29 is installed on the slider of the linear sliding rail. A feeding fixing support plate 30 is installed on the feeding mounting plate 29. A feeding connecting plate 31 is fixedly installed on the feeding fixing support plate 30. A pneumatic gripper 32 is fixedly installed on the feeding connecting plate 31. A feeding servo motor 33 is installed on the feeding bottom plate. The output end of the feeding servo motor 33 is connected to a lead screw 34, and the lead screw 34 is connected to the feeding mounting plate 29.

[0030] Furthermore, the tube supporting device includes a bracket 35 fixed on the machine tool. A limiting frame 36 is fixedly installed on the bracket 35, and a limiting groove 37 is provided on the limiting frame 36.

[0031] Furthermore, the round die device includes a round die base 38. A pneumatic gripper 39 is installed on the round die base 38. The pneumatic gripper 39 is provided with a clamping module 40, and the gap between the two clamping modules 40 is the thickness of the flat tube.

[0032] Furthermore, a pushing device 41 is also provided on the workbench. The pushing device 41 includes a longitudinal pushing device and a transverse pushing device. Longitudinal sliding grooves 42 and transverse sliding grooves 43 are provided on the workbench 2 corresponding to the longitudinal pushing device and the transverse pushing device. The longitudinal pushing device includes a sliding rail and a motor fixed on the bottom surface of the workbench 2. The output end of the motor is fixed to the slider of the sliding rail, and a longitudinal pushing plate 44 passing through the sliding groove and located on the workbench 2 is provided on the slider. The transverse pushing device includes a sliding rail and a motor fixed on the bottom surface of the workbench 2. The output end of the motor is fixed to the slider of the sliding rail, and a transverse pushing plate 45 passing through the sliding groove and located on the workbench 2 is provided on the slider.

[0033] The working process of a flat tube coiled tube bending machine of the present invention is as follows: The gripper of the feeding device grabs the flat tube to be processed in the limiting groove of the tube supporting device and runs towards the round die device. The clamping module of the round die device clamps the flat tube to be processed. When the bending plate of the bending device bends the flat tube to be processed, one of its vertical intersection lines rotates around the axis of the output shaft of the left and right bending switching servo motor.

[0034] The beneficial effects of the present invention are as follows: A flat tube coiled tube bending machine of the present invention can solve the problem of entanglement of the encoder wire and power supply wire of the bending device. The bending device has a small structure, light weight, high speed, and all the moving parts of the entire bending device are servo motors.

[0035] In addition, it should be noted that in this specification, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0036] It should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments understandable to those skilled in the art.

Claims

1. A flat tube coil bending machine, characterized in that it includes a workbench arranged on a machine tool. A material box fixed by a frame is arranged on the workbench. An upper feeding device, a bending device and a controller are installed on the material box. A corresponding material supporting device and a round die device are installed on the workbench. The upper feeding device is located above the material supporting device, and the bending device is located above the round die device. When the flat tube to be processed is placed in the material supporting device, the upper feeding device sends the flat tube to the round die device, and the bending device bends the flat tube to be processed into a coil tube; The bending device includes a mounting plate. The mounting plate is fixed to the material box through a left - right adjustment device. An up - down adjustment device is installed on the side of the mounting plate opposite to the material box, and a bending device is installed on the up - down adjustment device; The bending device includes a bending fixed bracket. A bending servo motor and a left - right bending switching servo motor are installed on the bending fixed bracket. A bending gear is installed at the output end of the bending servo motor. The left - right bending switching servo motor is installed with a gear sleeve through a bearing. The gear sleeve is provided with a left - right bending gear that cooperates with the bending gear. A bending fixed plate is fixedly installed at the lower end of the gear sleeve. The bending fixed plate is provided with a bending fixed plate connected by a linear slide rail. The bending fixed plate is provided with a rack. The output shaft of the left - right bending switching servo motor passes through the gear sleeve and the bending fixed plate and is provided with a left - right switching gear. The left - right switching gear meshes with the rack. The gear sleeve is coaxial with the output shaft of the left - right bending switching servo motor. A linear slide rail is installed on the lower end face of the bending fixed plate. A bending support plate is installed on the slider of the linear slide rail. A bending plate is installed on the bending support plate. When the bending plate bends the flat tube to be processed, one of its perpendicular intersection lines rotates around the axis line of the output shaft of the left - right bending switching servo motor; The left - right adjustment device includes a horizontal linear slide rail. The mounting plate is connected and fixed to the material box through the horizontal linear slide rail. A left - right adjustment servo motor is installed on the material box. A left - right adjustment connecting plate is fixed on the mounting plate. The left - right adjustment connecting plate is fixedly connected to the movable end of the left - right adjustment servo motor.

2. The flat tube coil bending machine according to claim 1, characterized in that: The up - down adjustment device includes a longitudinal linear slide rail and an up - down servo motor installed on the mounting plate. The bending device is installed on the linear slide rail. The movable end of the up - down servo motor is fixedly connected to the bending device.

3. The flat tube coil bending machine according to claim 1, characterized in that: The upper feeding device is installed on the upper feeding bottom plate on the lower end face of the material box. Two parallel linear slide rails are fixedly installed on the upper feeding bottom plate. A slider of the linear slide rail is installed with an upper feeding mounting plate. An upper feeding fixed support plate is installed on the upper feeding mounting plate. An upper feeding connecting plate is fixedly installed on the upper feeding fixed support plate. A pneumatic gripper is fixedly installed on the upper feeding connecting plate. An upper feeding servo motor is installed on the upper feeding bottom plate. The output end of the upper feeding servo motor is connected with a lead screw. The lead screw is connected to the upper feeding mounting plate.

4. The flat tube coil bending machine according to claim 1, characterized in that: The stock supporting device includes a bracket fixed on the machine tool, a limit frame is fixedly installed on the bracket, and a limit groove is provided on the limit frame.

5. The flat tube coiled tube bending machine according to claim 1, characterized in that: The circular die device includes a circular die base, a pneumatic gripper is installed on the circular die base, the pneumatic gripper is provided with a clamping module, and the gap between the two clamping modules is the thickness of the flat tube.

6. The flat tube coiled tube bending machine according to claim 1, characterized in that: A material pushing device is further provided on the workbench. The material pushing device includes a longitudinal material pushing device and a transverse material pushing device. The workbench is provided with a longitudinal sliding groove and a transverse sliding groove corresponding to the longitudinal material pushing device and the transverse material pushing device. The longitudinal material pushing device includes a slide rail and a motor fixed on the bottom surface of the workbench. The output end of the motor is fixed to the slider of the slide rail, and a longitudinal push plate passing through the sliding groove and located on the workbench is provided on the slider; the transverse material pushing device includes a slide rail and a motor fixed on the bottom surface of the workbench. The output end of the motor is fixed to the slider of the slide rail, and a transverse push plate passing through the sliding groove and located on the workbench is provided on the slider.

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