Evaporator red copper pipe bending device

Abstract

The utility model discloses an evaporator red copper pipe bending device which comprises a base, a feeding table capable of moving in a telescopic mode is installed on the base through a first air cylinder, a gear and a gear ring which are connected in a meshed mode are installed on the surface of one side of the feeding table in a rotating mode, and a stepping motor for driving the gear to rotate is installed on the surface of the other side of the feeding table. A ring hole of the gear ring penetrates through the front surface and the rear surface of the feeding table, a center clamping jaw is further installed on the front end face of the gear ring, a rotating rod is further rotationally installed on the base, a bending plate is installed on the rotating rod, an extending table is fixed outside the rotating rod, a first limiting block moving in a telescopic mode is installed on the extending table through a second air cylinder, and a boss is further installed on the base. And a limiting block II which telescopically moves is mounted on the boss through a cylinder III. The center clamping jaw is arranged to clamp a red copper pipe to move for feeding and can rotate around the axis by an angle, bending machining on different angle faces is achieved, the applicability is better, and the machining efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of evaporator manufacturing and processing technology, and in particular to a device for bending evaporator copper tubes. Background Technology

[0002] The copper tubes inside the evaporator are mostly arranged in an S-shaped fold to increase the length and area of ​​the copper tubes inside the evaporator. The S-shaped fold of the copper tubes needs to be processed by a tube bending machine.

[0003] When using existing automatic pipe bending equipment, the folded shape of the copper pipe is mainly formed on the same plane, making it difficult to bend at different angles according to production needs. This results in poor applicability. When bending at different angles is required, manual adjustment is often necessary, which affects the efficiency of the bending process.

[0004] To address this issue, we propose a bending processing device for evaporator copper tubes. Utility Model Content

[0005] The purpose of this invention is to provide a bending processing device for evaporator copper tubes to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A bending device for evaporator copper tubes includes a base. A telescopic feeding platform is mounted on the base via a cylinder. A pair of meshing gears and a toothed ring are rotatably mounted on one side surface of the feeding platform, and a stepper motor that drives the gears is mounted on the other side surface of the feeding platform. The annular hole of the toothed ring penetrates the front and rear surfaces of the feeding platform, and a central gripper is mounted on the front end face of the toothed ring. A rotating rod is also rotatably mounted on the base, and a bending plate is mounted on the rotating rod. An extension platform is fixed outside the rotating rod, and a telescopically movable limiting block is mounted on the extension platform via a cylinder. A boss is also mounted on the base, and a telescopically movable limiting block is mounted on the boss via a cylinder. The limiting block and the bending plate are located on the left and right sides of the toothed ring's axis, respectively.

[0008] In a further embodiment, the central gripper includes a mounting ring, on the surface of which are mounted with parallel double-ended screws and guide rods via two side support plates. The two threaded sections of the double-ended screws are symmetrically screwed with movable frames, which are slidably connected to the guide rods. A clamping block is fixed to the front end of the movable frame, and a servo motor is mounted on one of the support plates.

[0009] In a further embodiment, a track bar parallel to the extension and retraction direction of the cylinder is fixed on the upper surface of the base, and the feeding platform is slidably connected to the track bar.

[0010] In a further embodiment, the extension platform has a groove inside that is parallel to the extension direction of the cylinder two, and the lower end of the limiting block one is provided with a slider for sliding into the groove.

[0011] In a further embodiment, a second track bar parallel to the extension and retraction direction of the cylinder three is also fixed on the boss, and the second limiting block is slidably connected to the second track bar.

[0012] In a further embodiment, the plane containing the centerline of the gear ring coincides with the plane containing the horizontal centerline of the bending plate and the plane containing the centerlines of cylinder three and cylinder two.

[0013] In a further embodiment, a support roller is also mounted on the base via a bracket, and the bending plate and the support roller are located on the front and rear sides of the feeding platform, respectively.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] When the cylinder drives the feeding table to extend and retract, this utility model can not only feed the copper tube by clamping it with the central gripper, but also control the rotation angle of the copper tube around the axis by the central gripper using the action of gears, stepper motors and gear rings, so as to realize bending processing on different angle surfaces. This not only has better applicability, but also improves processing efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the left front view structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the right front view structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the feeding platform and the central gripper of this utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the boss and the limiting block 215 of this utility model.

[0020] In the diagram: 1. Base; 2. Cylinder 1; 3. Feeding platform; 4. Gear; 5. Stepper motor; 6. Gear ring; 7. Center gripper; 71. Mounting ring; 72. Support plate; 73. Double-ended screw; 74. Smooth rod; 75. Servo motor; 76. Movable frame; 77. Clamping block; 8. Rotating rod; 9. Bending plate; 10. Extension platform; 11. Cylinder 2; 12. Limiting block 1; 13. Boss; 14. Cylinder 3; 15. Limiting block 2; 16. Track 1; 17. Slider; 18. Track 2; 19. Support roller. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4A bending device for evaporator copper tubes includes a base 1. A cylinder 2 is fixed to the rear side of the base 1. A feeding platform 3 is installed at the output end of the cylinder 2. A pair of meshing gears 4 and a gear ring 6 are rotatably mounted on the front surface of the feeding platform 3. A stepper motor 5 for driving the gears 4 is installed on the rear surface of the feeding platform 3. The annular hole of the gear ring 6 penetrates the front and rear surfaces of the feeding platform 3. A central gripper 7 is also installed on the front end face of the gear ring 6 for positioning and clamping the copper tube at a position coinciding with the axis of the gear ring 6. A rotating rod 8 is also rotatably mounted on the base 1. A bending plate 9 is mounted on the rotating rod 8. The bending plate 9 is a semi-circular arc plate, and the two ends of the semi-circular arc extend to form two parallel sides. The base 1 is lower The base 1 is equipped with a power motor (not shown in the figure) that drives the rotating rod 8 to rotate, and an extension platform 10 is fixed to the outside of the rotating rod 8. A cylinder 11 is fixed on the extension platform 10, and the output end of the cylinder 11 is connected to a limit block 12. The cylinder 11 is used to drive the limit block 12 to move closer to or away from one of the parallel sides of the bending plate 9, thereby clamping the copper tube. A boss 13 is also installed on the base 1, and a cylinder 14 is fixed on the boss 13. A limit block 15 is installed on the output end of the cylinder 14. The cylinder 14 is used to drive the limit block 15 to move closer to or away from the bending plate 9. Since the limit block 15 and the bending plate 9 are located on the left and right sides of the axis of the toothed ring 6, the copper tube can pass through the middle of the two.

[0025] Specifically, the central gripper 7 includes a mounting ring 71, which is coaxially fixed to the front end face of the toothed ring 6. The front surface of the mounting ring 71 is supported by two side support plates 72, with parallel double-ended screws 73 and smooth rods 74. The two threaded sections of the double-ended screws 73 are symmetrically screwed with movable frames 76, with the two threaded sections having opposite directions of rotation. The smooth rods 74 slide through the movable frames 76, and a clamping block 77 is fixed to the front end of the movable frames 76. A servo motor 75 that drives the double-ended screws 73 to rotate is installed on one of the support plates 72, so that when the clamping block 77 clamps the copper tube, the copper tube is always in the center position.

[0026] To improve the stability of the equipment, a track bar 16 parallel to the extension direction of cylinder 12 is fixed on the upper surface of the base 1. An arc groove is provided on the lower end face of the feeding platform 3, which slides with the track bar 16, thereby limiting the movement of the feeding platform 3 and preventing it from deflecting. Similarly, a sliding groove parallel to the extension direction of cylinder 21 is provided inside the extension platform 10, and a slider 17 for sliding into the sliding groove is provided at the lower end of the limiting block 12 to limit the movement of the limiting block 12. A track bar 28 parallel to the extension direction of cylinder 314 is fixed on the boss 13, and an arc groove is provided on the lower end face of the limiting block 25, which slides with the track bar 218, thereby limiting the movement of the limiting block 25.

[0027] Furthermore, the plane containing the axis of the toothed ring 6 coincides with the plane containing the horizontal center line of the bending plate 9, as well as the plane containing the axis of cylinder 14 and cylinder 11. This ensures that when cylinder 14 pushes the limiting block 15 to clamp the copper tube with the bending plate 9, and when cylinder 11 pushes the limiting block 12 to clamp the copper tube with the bending plate 9, the clamping force point is located on the plane containing the axis of the copper tube, making the force on the copper tube more balanced.

[0028] The base 1 is also equipped with a support roller 19 which is rotated on the bracket. The bending plate 9 and the support roller 19 are located on the front and rear sides of the feeding table 3, respectively, so that the tail end of the copper tube can be placed on the support roller 19, while the front end of the copper tube is supported in the arc groove of the bending plate 9.

[0029] Working principle: In the initial state, the curved surface of the bending plate 9 faces the rear. At this time, the first limiting block 12 and the second limiting block 15 are on the same longitudinal line. The end of the copper tube passes from the rear to the front of the feeding table 3 and is then supported between the bending plate 9 and the first limiting block 12. The bending plate 9 and the first limiting block 12 clamp the end of the copper tube. At the same time, rotating counterclockwise 90° will bend the end of the copper tube into a right angle bend. Then, the central gripper 7 clamps the copper tube and feeds a section of material to the bending plate 9. The first limiting block 12 releases the copper tube. When the bending plate 9 returns to its initial state, the limiting block 12 clamps the copper tube with the bending plate 9 and rotates it 180° counterclockwise, thus forming a U-shaped bend. The central gripper 7 clamps the copper tube and continues to feed a section of material to the bending plate 9, while simultaneously rotating the copper tube 180°. At this time, the bending plate 9 forms another U-shaped bend, which, together with the previous U-shaped bend, forms an S-shaped bend. By changing the different rotation angles of the central gripper 7 when feeding material, the subsequent bends formed can be controlled to have different angle distributions from the previous bend.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bending processing device for evaporator copper tubes, comprising a base (1), characterized in that: A telescopic feeding platform (3) is mounted on the base (1) via a cylinder (2). A pair of meshing gears (4) and a gear ring (6) are rotatably mounted on one side surface of the feeding platform (3), and a stepper motor (5) that drives the gears (4) to rotate is mounted on the other side surface of the feeding platform (3). The ring hole of the gear ring (6) penetrates the front and rear surfaces of the feeding platform (3), and a central gripper (7) is also mounted on the front end face of the gear ring (6). A rotating... The rod (8) has a bending plate (9) installed on it, and an extension platform (10) is fixed to the outside of the rod (8). A telescopic limit block (12) is installed on the extension platform (10) through a cylinder (11). A boss (13) is also installed on the base (1). A telescopic limit block (15) is installed on the boss (13) through a cylinder (14). The limit block (15) and the bending plate (9) are located on the left and right sides of the axis of the toothed ring (6).

2. The evaporator copper tube bending processing device according to claim 1, characterized in that: The central gripper (7) includes a mounting ring (71). The surface of the mounting ring (71) is supported by two side support plates (72) with parallel double-headed screws (73) and smooth rods (74). The two threaded sections of the double-headed screws (73) are symmetrically screwed with movable frames (76). The movable frames (76) are slidably connected to the smooth rods (74). The front end of the movable frames (76) is fixed with a clamping block (77). A servo motor (75) is installed on one of the support plates (72).

3. The evaporator copper tube bending processing device according to claim 1, characterized in that: The upper surface of the base (1) is also fixed with a track bar (16) parallel to the extension and retraction direction of the cylinder (2), and the feeding platform (3) is slidably connected to the track bar (16).

4. The evaporator copper tube bending processing device according to claim 1, characterized in that: The extension platform (10) has a groove inside that is parallel to the extension and retraction direction of the cylinder (11), and the lower end of the limiting block (12) is provided with a slider (17) for sliding into the groove.

5. The evaporator copper tube bending processing device according to claim 1, characterized in that: The boss (13) is also fixed with a second track bar (18) that is parallel to the extension and retraction direction of the cylinder (14), and the second limiting block (15) is slidably connected to the second track bar (18).

6. The evaporator copper tube bending processing device according to claim 1, characterized in that: The plane containing the centerline of the toothed ring (6) coincides with the plane containing the horizontal centerline of the bending plate (9) and the plane containing the centerlines of cylinder three (14) and cylinder two (11).

7. The evaporator copper tube bending processing device according to claim 1, characterized in that: The base (1) is also equipped with a support roller (19) by means of a bracket, and the bending plate (9) and the support roller (19) are located on the front and rear sides of the feeding table (3).

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