Necking die for aluminum flat tube machining

Abstract

The utility model discloses a necking die for aluminum flat tube processing, which comprises a driving component, two ends of the bottom of the driving component are fixedly connected with telescopic components, an inner cavity of a hollow groove is fixedly connected with a partition plate, one side of the partition plate is rotatably connected with a rotating screw rod, and the other side of the partition plate is slidably connected with a sliding plate. The surface of the rotating lead screw is in threaded connection with a lead screw nut, the surface of the lead screw nut is fixedly connected with a plurality of ejector rods at equal intervals, the surface of the rotating shaft is sleeved with a rotating rod, and an inner cavity of the rotating rod is rotationally connected with an extrusion wheel. A synchronous shaft, a driven wheel and a rotating lead screw are driven to rotate through work of a servo motor, the rotating lead screw rotates to drive a lead screw nut to move in the direction away from the driven wheel, and movement of the lead screw nut drives an ejector rod, a sliding plate, a telescopic rod and an extrusion wheel to move, so that the extrusion wheel extrudes the two sides of the end of an aluminum flat pipe; and the end part of the aluminum flat tube is necked to a proper degree.

Description

Technical Field

[0001] The utility model relates to the technical field of shrinking moulds, in particular to a shrinking mould for processing aluminium flat tubes. Background Art

[0002] The parallel flow condenser is the most critical component in automobile air conditioners and microchannel household air conditioners. The parallel flow condenser consists of a header, several microchannel aluminum flat tubes, heat dissipation belts, etc. The assembly process is to arrange the aluminum flat tubes and heat dissipation belts neatly and clamp them first, and then install the two headers at both ends of the arranged heat dissipation pipes. The ends of all aluminum flat tubes are required to be inserted into the flat holes of the headers for a certain length. In order to smoothly insert the aluminum flat tubes into the flat tube holes of the headers, the ends of the aluminum flat tubes need to be narrowed.

[0003] However, most of the existing shrinking molds are fixed structures with fixed shapes, which can only process the ends of the aluminum flat tubes into docking interfaces with a certain angle, but cannot adjust the degree of shrinking according to needs. Utility Model Content

[0004] The utility model aims to provide a shrinking die for processing aluminum flat tubes, so as to solve the problem that the existing shrinking dies proposed in the above background technology are mostly fixed structures with fixed shapes, which can only process the ends of the aluminum flat tubes into docking interfaces with a certain angle, but cannot adjust the degree of shrinking as needed.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a shrinking mold for processing aluminum flat tubes, comprising a driving assembly, both ends of the bottom of the driving assembly are fixedly connected with a telescopic assembly, the telescopic assembly comprises a cross bar, a hollow groove is opened inside the cross bar, the inner cavity of the hollow groove is fixedly connected with a partition, one side of the partition is rotatably connected with a rotating screw, and the other side of the partition is slidably connected with a sliding plate, the surface of the rotating screw is threadedly connected with a screw nut, and the surface of the screw nut is equidistantly fixedly connected with a plurality of push rods, one end of the plurality of push rods passes through the partition and is fixedly connected to the surface of the sliding plate, one side of the sliding plate is fixedly connected with a telescopic rod, one end of the telescopic rod penetrates into an installation groove opened on the outside, both ends of the inner cavity of the installation groove are rotatably connected with a rotating shaft, the surface of the rotating shaft is sleeved with a rotating rod, the inner cavity of the rotating rod is rotatably connected with an extrusion wheel, and the surface of the rotating shaft is sleeved with a torsion spring.

[0006] Preferably, the driving assembly comprises an n-shaped frame, a rotation groove is formed on the top of the n-shaped frame, and transmission grooves are formed on the bottoms of both ends of the rotation groove for installation and rotation of the synchronization shaft.

[0007] Preferably, the inner cavity of the rotating groove is rotatably connected with a synchronous shaft, a servo motor is fixedly installed on one side of the top of the n-shaped frame, and one end of the synchronous shaft is fixedly connected to the output end of the servo motor, and the synchronous shaft is driven to rotate by the servo motor.

[0008] Preferably, driving wheels are sleeved on both ends of the synchronous shaft surface, and driven wheels are sleeved on the ends of the two rotating screw rod surfaces away from the sliding plate, and the driven wheel and the driving wheel are connected by a synchronous belt transmission, and the synchronous belt drives the driving wheel and the driven wheel to rotate synchronously.

[0009] Preferably, a connecting groove is provided on the top of the driven wheel, and the synchronous belt is inserted into the inner cavity of the connecting groove to facilitate the passing of the synchronous belt.

[0010] Preferably, mounting plates are fixedly connected to both sides of the inner wall of the n-shaped frame, and a plurality of mounting holes are equidistantly provided on the surface of the mounting plates for installation of equipment.

[0011] Preferably, a switch panel is fixedly mounted on the front side of the n-shaped frame, and the servo motor is electrically connected to an external power supply through the switch panel to control the servo motor.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The servo motor drives the synchronous shaft, the driven wheel and the rotating screw to rotate. The rotation of the rotating screw drives the screw nut to move away from the driven wheel. The movement of the screw nut drives the movement of the push rod, the sliding plate, the telescopic rod and the extrusion wheel, so that the extrusion wheel and the two sides of the end of the aluminum flat tube are squeezed. The movement of the telescopic rod drives the change of the extrusion degree of the extrusion wheel, so that the end of the aluminum flat tube is shrunk to an appropriate degree. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a cross-sectional view of the adjustment component of the utility model;

[0016] Figure 3 It is a cross-sectional view of the installation slot of the utility model;

[0017] Figure 4 It is a cross-sectional view of the drive assembly of the utility model.

[0018] In the figure: 1. driving assembly; 2. telescopic assembly; 3. cross bar; 4. hollow groove; 5. partition; 6. rotating screw; 7. screw nut; 8. sliding plate; 9. push rod; 10. telescopic rod; 11. mounting groove; 12. rotating shaft; 13. rotating rod; 14. extrusion wheel; 15. torsion spring; 16. driven wheel; 17. connecting groove; 18. n-shaped frame; 19. rotating groove; 20. transmission groove; 21. synchronous shaft; 22. driving wheel; 23. synchronous belt; 24. mounting plate; 25. mounting hole; 26. servo motor; 27. switch panel. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model provides a shrinking die for processing aluminum flat tubes, including a driving component 1, both ends of the bottom of the driving component 1 are fixedly connected with a telescopic component 2, the telescopic component 2 includes a cross bar 3, a hollow groove 4 is opened inside the cross bar 3, a partition 5 is fixedly connected to the inner cavity of the hollow groove 4, one side of the partition 5 is rotatably connected with a rotating screw 6, the other side of the partition 5 is slidably connected with a sliding plate 8, the surface of the rotating screw 6 is threadedly connected with a screw nut 7, the surface of the screw nut 7 is equidistantly fixedly connected with a plurality of push rods 9, one end of the plurality of push rods 9 passes through the partition 5 and is fixedly connected to the surface of the sliding plate 8, one side of the sliding plate 8 is fixedly connected with a telescopic rod 10, one end of the telescopic rod 10 penetrates into an installation groove 11 opened outside, and both ends of the inner cavity of the installation groove 11 are rotatably connected There is a rotating shaft 12, the surface of the rotating shaft 12 is sleeved with a rotating rod 13, the inner cavity of the rotating rod 13 is rotatably connected to an extrusion wheel 14, and the surface of the rotating shaft 12 is sleeved with a torsion spring 15; the aluminum flat tube that needs to be port-shrinked is fixed by a fixing fixture and one end is placed between two telescopic rods 10, and the rotation of the screw rod 6 is driven by the driving component 1, and the rotation of the screw rod 6 drives the screw nut 7 to move away from the driven wheel 16, and the movement of the screw nut 7 drives the movement of the push rod 9 and the sliding plate 8, and the movement of the sliding plate 8 drives the movement of the telescopic rod 10 and the extrusion wheel 14, so that the extrusion wheel 14 is squeezed with both sides of the end of the aluminum flat tube, and the extrusion degree of the extrusion wheel 14 is changed through the movement of the telescopic rod 10, so that the end of the aluminum flat tube is shrunken to an appropriate degree.

[0021] See also Figure 1-4Further, the driving assembly 1 includes an n-shaped frame 18, a rotating groove 19 is provided at the top of the n-shaped frame 18, and transmission grooves 20 are provided at the bottoms of both ends of the rotating groove 19. The inner cavity of the rotating groove 19 is rotatably connected with a synchronous shaft 21, a servo motor 26 is fixedly installed on one side of the top of the n-shaped frame 18, and one end of the synchronous shaft 21 is fixedly connected to the output end of the servo motor 26, and both ends of the surface of the synchronous shaft 21 are sleeved with driving wheels 22, and the ends of the surfaces of the two rotating screw rods 6 away from the sliding plate 8 are sleeved with driven wheels 16, and the driven wheels 16 and the driving wheels 22 are connected through a synchronous belt 23. A connecting groove 17 is provided at the top of the driven wheel 16, and the synchronous belt 23 is inserted in the inner cavity of the connecting groove 17. The servo motor 26 drives the rotation of the synchronous shaft 21, and the rotation of the synchronous shaft 21 drives the rotation of the driving wheel 22. The driving wheel 22 is connected to the driven wheel 16 through the synchronous belt 23, thereby driving the rotation of the driven wheel 16 and the rotating screw rod 6.

[0022] See also Figure 1-4 Furthermore, mounting plates 24 are fixedly connected to both sides of the inner wall of the n-shaped frame 18, and a plurality of mounting holes 25 are evenly spaced on the surface of the mounting plate 24 for mounting and fixing the device on one side of the device.

[0023] See also Figure 1-4 Furthermore, a switch panel 27 is fixedly mounted on the front of the n-shaped frame 18, and the servo motor 26 is electrically connected to an external power supply through the switch panel 27 to control the switch of the electrical equipment.

[0024] When in use, first fix the aluminum flat tube whose port needs to be shrunken by a fixing fixture and place one end between the two telescopic rods 10, then turn on the servo motor 26, and the servo motor 26 drives the rotation of the synchronous shaft 21, and the rotation of the synchronous shaft 21 drives the rotation of the driving wheel 22, and the driving wheel 22 is connected to the driven wheel 16 through the synchronous belt 23, thereby driving the rotation of the driven wheel 16 and the rotating screw 6, and the rotation of the rotating screw 6 drives the screw nut 7 to move away from the driven wheel 16, and the screw nut 7 The movement of the push rod 9 and the sliding plate 8 is driven by the movement of the telescopic rod 10 and the extrusion wheel 14, so that the extrusion wheel 14 is extruded on both sides of the end of the aluminum flat tube. The movement of the telescopic rod 10 drives the extrusion degree of the extrusion wheel 14 to change, so that the end of the aluminum flat tube is shrunk to a suitable degree. When the extrusion wheel 14 extrude the aluminum flat tube, the rotating rod 13 rotates outward to a certain extent, and the torsion spring 15 is compressed, thereby buffering the extrusion wheel 14 to prevent the extrusion wheel 14 from being damaged due to excessive extrusion force.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A necking die for processing an aluminum flat tube, comprising a drive assembly (1), characterized in that: Both ends of the bottom of the driving assembly (1) are fixedly connected to a telescopic assembly (2), the telescopic assembly (2) comprising a cross bar (3), a hollow groove (4) is provided inside the cross bar (3), a partition (5) is fixedly connected to the inner cavity of the hollow groove (4), one side of the partition (5) is rotatably connected to a rotating screw (6), the other side of the partition (5) is slidably connected to a sliding plate (8), the surface of the rotating screw (6) is threadedly connected to a screw nut (7), and the surface of the screw nut (7) is equidistantly fixedly connected to a plurality of push rods (9), One end of the plurality of push rods (9) passes through the partition (5) and is fixedly connected to the surface of the sliding plate (8); a telescopic rod (10) is fixedly connected to one side of the sliding plate (8); one end of the telescopic rod (10) passes through an external mounting groove (11); both ends of the inner cavity of the mounting groove (11) are rotatably connected to a rotating shaft (12); a rotating rod (13) is sleeved on the surface of the rotating shaft (12); an extrusion wheel (14) is rotatably connected to the inner cavity of the rotating rod (13); and a torsion spring (15) is sleeved on the surface of the rotating shaft (12).

2. The necking die for aluminum flat tube processing according to claim 1, characterized in that: The driving assembly (1) comprises an n-shaped frame (18), a rotation groove (19) is provided on the top of the n-shaped frame (18), and transmission grooves (20) are provided at the bottoms of both ends of the rotation groove (19).

3. The necking die for aluminum flat tube processing according to claim 2, characterized in that: The inner cavity of the rotating groove (19) is rotatably connected to a synchronous shaft (21), a servo motor (26) is fixedly mounted on one side of the top of the n-shaped frame (18), and one end of the synchronous shaft (21) is fixedly connected to the output end of the servo motor (26).

4. The shrinking die for processing aluminum flat tubes according to claim 3, characterized in that: Both ends of the surface of the synchronous shaft (21) are sleeved with driving wheels (22), and the ends of the surfaces of the two rotating screws (6) away from the sliding plate (8) are sleeved with driven wheels (16), and the driven wheels (16) and the driving wheels (22) are connected by a synchronous belt (23).

5. The necking die for aluminum flat tube processing according to claim 4, characterized in that: A connecting groove (17) is provided on the top of the driven wheel (16), and the synchronous belt (23) is inserted into the inner cavity of the connecting groove (17).

6. The shrinking die for processing aluminum flat tubes according to claim 2, characterized in that: Both sides of the inner wall of the n-shaped frame (18) are fixedly connected with mounting plates (24), and a plurality of mounting holes (25) are equidistantly provided on the surface of the mounting plate (24).

7. The shrinking die for processing aluminum flat tubes according to claim 3, characterized in that: A switch panel (27) is fixedly mounted on the front of the n-shaped frame (18), and the servo motor (26) is electrically connected to an external power supply via the switch panel (27).

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