Condenser copper pipe expansion forming device

Abstract

The utility model relates to the technical field of metal material machining, in particular to a condenser copper pipe expansion forming device which comprises a base, a hydraulic cylinder is installed at the left end of the top face of the base, a first fixing device is arranged in the middle of the top face of the base, and an auxiliary limiting ring is fixedly arranged at the top of the first fixing device. A first tool clamp is arranged on the right side of the first fixing device, a second tool clamp is slidably arranged at the right end of the top face of the base, a second fixing device is arranged on the right side of the second tool clamp, and a limiting pipe is fixedly arranged on the top of the second fixing device. The condenser copper pipe expansion forming device can abut against the right end of a copper pipe in the chambering machining process, the stability of the copper pipe is greatly improved through cooperation with a clamp, loosening and sliding are prevented, meanwhile, the left flaring end of the copper pipe can be sleeved, the pipe wall thickness of the flaring end is limited, the probability of cracking caused by uneven flaring thickness is reduced, and the service life of the copper pipe is prolonged. And the protection of the flaring end of the copper pipe and the stability of the flaring process are improved.

Description

Technical Field

[0001] This utility model relates to the field of metal material processing technology, specifically to a condenser copper tube expansion forming device. Background Technology

[0002] In industries such as refrigeration, air conditioning, and power, condensers are key heat exchange components. One of the core components of a condenser is a copper tube. The copper tube achieves refrigerant condensation through heat exchange with the cooling medium. In order to improve heat exchange efficiency and facilitate its installation and connection, the ends of the copper tube usually need to be expanded and shaped. This is generally accomplished by a hydraulic device equipped with a flaring rod with an outer diameter larger than the inner diameter of the copper tube.

[0003] Current copper tube expansion equipment mainly relies on calibration and alignment to reduce uneven thickness and cracking during flaring, lacking additional protective measures. In addition, the flaring process mostly relies on clamps to fix the copper tube. Once the clamps become loose, the copper tube will slip during the flaring process, thus affecting the flaring process effect.

[0004] To address the aforementioned issues, we have made improvements by proposing a condenser copper tube expansion forming device. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model provides a condenser copper tube expansion forming device, including a base. A hydraulic cylinder is fixedly installed on the left end of the top surface of the base via a bracket. A flaring rod is telescopically arranged at the center of the right side of the hydraulic cylinder. A first fixing device is arranged in the middle of the top surface of the base. An auxiliary limiting ring is fixedly arranged on the top of the first fixing device. The auxiliary limiting ring is detachably connected to the base via the first fixing device. A first tooling fixture is arranged on the right side of the first fixing device. A second tooling fixture is slidably arranged on the right end of the top surface of the base. A second fixing device is arranged on the right side of the second tooling fixture. A limit tube is fixedly arranged on the top of the second fixing device. The limit tube is detachably connected to the base via the second fixing device.

[0007] As a preferred technical solution of this utility model, the left end of the limiting tube is open and the right end is closed. The inner diameter of the limiting tube is the same as the original outer diameter of the copper tube. The first fixing device includes a base. The bottom of the base is fixedly connected to the base plate. An anti-rotation square groove is opened in the center of the top surface of the base. A bolt hole is opened in the center of the bottom surface of the anti-rotation square groove. An anti-rotation base plate is connected inside the anti-rotation square groove.

[0008] As a preferred technical solution of this utility model, the left and right ends of the auxiliary limiting ring are connected, and the inner diameter is equal to the outer diameter of the copper tube after expansion. The left and right ends of the bottom of the auxiliary limiting ring are fixedly welded with connecting plates. The bottom of the two connecting plates are respectively fixedly welded to the left and right ends of the top surface of the anti-rotation substrate. A bolt tube is fixedly provided at the center of the top surface of the anti-rotation substrate.

[0009] As a preferred embodiment of this utility model, the bottom of the bolt tube is aligned with the bolt hole, a locking bolt is threaded inside the bolt tube, a rotating wheel is coaxially fixedly connected to the top of the locking bolt, and the bottom of the locking bolt is threadedly connected to the base through the bolt hole. The structure of the second fixing device is exactly the same as that of the first fixing device.

[0010] As a preferred technical solution of this utility model, the first tooling fixture includes a tooling base, the bottom of which is fixedly connected to a base, a threaded rod is rotatably installed inside the tooling base, and a DC motor is fixedly installed on the outer side of the tooling base by bolts, the rotating shaft of the DC motor being coaxially fixedly connected to the threaded rod.

[0011] As a preferred technical solution of this utility model, clamping blocks are slidably arranged at both the front and rear ends inside the tooling base. The threaded rod passes through the bottom of the two clamping blocks and is threadedly connected to them. The structure of the second tooling fixture is the same as that of the first tooling fixture. An electric guide rail is fixedly installed at the right end of the top surface of the base. The bottom of the tooling base of the second tooling fixture is fixedly installed at the left end of the top surface of the electric guide rail slider. The bottom of the base of the second fixing device is fixedly connected to the right end of the top surface of the slider.

[0012] The beneficial effects of this utility model are: This condenser copper tube expansion forming device can hold the right end of the copper tube during the expansion process, and with the help of the clamp, it greatly improves the stability of the copper tube and prevents loosening and slippage. At the same time, it can also cover the left end of the copper tube to limit the wall thickness of the flared end, reduce the probability of cracking caused by uneven flaring thickness, improve the protection of the flared end of the copper tube and the stability of the flaring process. In addition, the limiting tube and the auxiliary limiting ring can be disassembled and replaced according to the actual copper tube size, making it highly versatile. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the structure of a condenser copper tube expansion forming device according to the present invention;

[0015] Figure 2This is a schematic cross-sectional view of the first fixing device of the condenser copper tube expansion forming device of this utility model.

[0016] Figure 3 This is a right-side cross-sectional view of the first tooling fixture of the condenser copper tube expansion forming device of this utility model.

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the limiting tube of a condenser copper tube expansion forming device according to this utility model.

[0018] Figure 5 This is a left-side view of the second tooling fixture of the condenser copper tube expansion forming device of this utility model;

[0019] In the diagram: 1. Base; 2. Hydraulic cylinder; 3. First fixing device; 4. Auxiliary limiting ring; 5. First tooling fixture; 6. Electric guide rail; 7. Second tooling fixture; 8. Second fixing device; 9. Limiting tube; 10. Base; 11. Anti-rotation square groove; 12. Bolt hole; 13. Connecting plate; 14. Anti-rotation base plate; 15. Bolt tube; 16. Locking bolt; 17. Tooling base; 18. Bidirectional threaded rod; 19. DC motor; 20. Clamping block. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] Example: Figures 1-5 As shown, a condenser copper tube expansion forming device includes a base 1. A hydraulic cylinder 2 is fixedly installed on the left end of the top surface of the base 1 via a bracket. A flaring rod is telescopically installed at the center of the right side of the hydraulic cylinder 2. A first fixing device 3 is provided in the middle of the top surface of the base 1. An auxiliary limiting ring 4 is fixedly installed on the top of the first fixing device 3. The auxiliary limiting ring 4 is detachably connected to the base 1 via the first fixing device 3. A first tooling fixture 5 is provided on the right side of the first fixing device 3. A second tooling fixture 7 is slidably installed on the right end of the top surface of the base 1. A second fixing device 8 is provided on the right side of the second tooling fixture 7. A limiting tube 9 is fixedly installed on the top of the second fixing device 8. The limiting tube 9 is detachably connected to the base 1 via the second fixing device 8.

[0022] The left end of the limiting tube 9 is open and the right end is closed. The inner diameter of the limiting tube 9 is the same as the original outer diameter of the copper tube. The first fixing device 3 includes a base 10. The bottom of the base 10 is fixedly connected to the base 1. An anti-rotation square groove 11 is provided at the center of the top surface of the base 10. A bolt hole 12 is provided at the center of the bottom surface of the anti-rotation square groove 11. An anti-rotation base plate 14 is provided inside the anti-rotation square groove 11.

[0023] The auxiliary limiting ring 4 has a through-hole on both the left and right ends, and its inner diameter is equal to the outer diameter of the copper tube after expansion. The bottom of the auxiliary limiting ring 4 is fixedly welded with connecting plates 13 on both the left and right ends. The bottom of the two connecting plates 13 is fixedly welded to the top of the anti-rotation base plate 14 on the left and right ends respectively. The center of the top surface of the anti-rotation base plate 14 is fixedly provided with a bolt tube 15.

[0024] The bottom of the bolt tube 15 is aligned with the bolt hole 12. The bolt tube 15 is internally threaded with a locking bolt 16. The top of the locking bolt 16 is coaxially fixed with a rotating wheel. The bottom of the locking bolt 16 is threadedly connected to the base 10 through the bolt hole 12. The structure of the second fixing device 8 is exactly the same as that of the first fixing device 3.

[0025] The first tooling fixture 5 includes a tooling base 17, the bottom of which is fixedly connected to the base 1. A threaded rod 18 is rotatably installed inside the tooling base 17. A DC motor 19 is fixedly installed on the outer side of the tooling base 17 by bolts. The rotating shaft of the DC motor 19 is coaxially fixedly connected to the threaded rod 18.

[0026] The tooling base 17 has slidably arranged clamping blocks 20 at both the front and rear ends. The threaded rod 18 passes through the bottom of the two clamping blocks 20 and is threadedly connected to them. The structure of the second tooling fixture 7 is the same as that of the first tooling fixture 5. An electric guide rail 6 is fixedly installed on the right end of the top surface of the base 1. The bottom of the tooling base 17 of the second tooling fixture 7 is fixedly installed on the left end of the top surface of the slider of the electric guide rail 6. The bottom of the base 10 of the second fixing device 8 is fixedly connected to the right end of the top surface of the slider.

[0027] Working principle: In use, the copper tube expansion and forming device for condensers is operated by placing the copper tube between the clamping blocks 20 of the first tooling fixture 5 and the second tooling fixture 7, with the right end of the copper tube aligned with the limiting tube 9. The electric guide rail 6 is operated until the limiting tube 9 covers the copper tube and its inner right side abuts against the copper tube. The DC motor 19 of the second tooling fixture 7 drives the threaded rod 18 to rotate, thereby controlling the two clamping blocks 20 to clamp and fix the right end of the copper tube. The electric guide rail 6 continues to operate until the left end of the copper tube extends into the auxiliary limiting ring 4 and is aligned with its outlet. Then, the DC motor 19 of the first tooling fixture 5 is operated to drive the clamping blocks 20 to clamp and fix the left end of the copper tube. The hydraulic cylinder 2 is then operated to drive the flaring rod to insert into the left end of the copper tube for flaring. The auxiliary limiting ring 4 and the limiting tube 9 can be disassembled and replaced with different sizes by rotating the locking bolt 16 to adapt to the flaring operation of copper tubes of different sizes.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for expanding and forming a condenser copper tube, comprising a base (1), characterized in that, The left end of the top surface of the base (1) is fixedly installed with a hydraulic cylinder (2) through a support, the right side of the hydraulic cylinder (2) is telescopically provided with a flared rod, the middle of the top surface of the base (1) is provided with a first fixing device (3), the top of the first fixing device (3) is fixedly provided with an auxiliary limiting ring (4), the auxiliary limiting ring (4) is detachably connected with the base (1) through the first fixing device (3), the right side of the first fixing device (3) is provided with a first tool clamp (5), the right end of the top surface of the base (1) is slidably provided with a second tool clamp (7), the right side of the second tool clamp (7) is provided with a second fixing device (8), the top of the second fixing device (8) is fixedly provided with a limiting tube (9), and the limiting tube (9) is detachably connected with the base (1) through the second fixing device (8).

2. A device for expanding and forming a condenser copper tube according to claim 1, wherein The left end of the limiting tube (9) is open, the right end is closed, the inner diameter of the limiting tube (9) is the same as the original outer diameter of the copper pipe, the first fixing device (3) comprises a base (10), the bottom of the base (10) is fixedly connected with the base (1), the top surface of the base (10) is provided with an anti-rotation square groove (11) in the center, the bottom surface of the anti-rotation square groove (11) is provided with a bolt hole (12) in the center, and the anti-rotation square groove (11) is internally and oppositely provided with an anti-rotation base plate (14).

3. A device for expanding and forming a condenser copper tube according to claim 2, wherein The left and right ends of the auxiliary limiting ring (4) are through, the inner diameter is equal to the outer diameter of the copper pipe after expansion, and the left and right ends of the bottom of the auxiliary limiting ring (4) are fixedly and welded with a connecting plate (13), the bottoms of the two connecting plates (13) are fixedly and welded with the left and right ends of the top surface of the anti-rotation base plate (14) respectively, and the top surface of the anti-rotation base plate (14) is fixedly provided with a bolt tube (15) in the center.

4. The apparatus of claim 3 wherein, The bottom of the bolt tube (15) is aligned with the bolt hole (12), the inside of the bolt tube (15) is threadedly connected with a locking bolt (16), the top of the locking bolt (16) is coaxially and fixedly connected with a rotating wheel, the bottom of the locking bolt (16) is threadedly connected with the base (10) through the bolt hole (12), and the second fixing device (8) is completely same as the first fixing device (3).

5. The apparatus of claim 1 wherein, The first tool clamp (5) comprises a tool base (17), the bottom of the tool base (17) is fixedly connected with the base (1), a threaded rod (18) is rotatably installed in the tool base (17), and a DC motor (19) is fixedly arranged on the side surface of the tool base (17) through a bolt.

6. A condenser copper tube expanding and forming device according to claim 5, characterized in that, The front and rear ends of the tool base (17) are slidably provided with clamping blocks (20), the threaded rod (18) penetrates through the bottoms of the two clamping blocks (20) and is threadedly connected therewith, the second tool clamp (7) is same as the first tool clamp (5), the right end of the top surface of the base (1) is fixedly installed with an electric guide rail (6), the bottom of the tool base (17) of the second tool clamp (7) is fixedly installed on the left end of the top surface of the sliding block of the electric guide rail (6), and the bottom of the base (10) of the second fixing device (8) is fixedly connected with the right end of the top surface of the sliding block.

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