Copper capillary tube expansion device

Abstract

The utility model discloses a copper capillary tube expanding device, which belongs to the technical field of copper capillary tube processing, and comprises a workbench and a copper capillary tube body, the bottom end of the workbench is fixedly connected with a bracket, the top end of the workbench is fixedly connected with a support plate, and the outer end of the support plate is provided with an air cylinder; the output end of the air cylinder penetrates through the air cylinder and is fixedly connected with a reaming shaft. A lubricating assembly is arranged at the top end of the workbench. According to the scheme, the air cylinder is used for controlling the reaming shaft to move, the reaming shaft preferentially penetrates through the fixing ring, lubricating oil is evenly sprayed to the surface of the reaming shaft, then the reaming shaft with the surface coated with the lubricating oil is inserted into the copper capillary tube body for reaming treatment, and the friction force between the reaming shaft and the tube wall of the copper capillary tube body can be reduced; the lubricant serves as a diversion agent, so that the chambering shaft can be stably inserted into the copper capillary tube body, chambering difficulty is lowered, abrasion degree of the chambering shaft is lowered, and service life of the chambering shaft is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of copper capillary processing, and more specifically to a copper capillary expansion device. Background Art

[0002] Copper capillary tubes are made by cold extrusion and are widely used in refrigeration, air conditioning, cold water engineering, environmental protection engineering and other fields. When copper capillary tubes are used, in order to facilitate the installation of the connecting joints, the connecting end of the copper capillary tubes will be expanded to enlarge the inner diameter of the tube mouth and facilitate the insertion of the connecting joints.

[0003] Chinese patent authorization announcement number: CN218744458U discloses a copper capillary reaming device. In this scheme, the reaming head can reame the copper capillary. Since the reaming head and the feeding hole are located on the same straight line, the U-shaped frame is fixed on the clamping block, the reaming head can move horizontally, which can prevent the reaming direction from changing easily and improve the reaming effect of the copper capillary.

[0004] Since the reaming tool and the copper capillary tube wall will generate large friction resistance during the reaming process, reaming becomes more difficult. At the same time, the friction resistance will cause the friction between the reaming tool and the copper capillary tube wall to increase, which may cause the reaming tool to wear more and shorten its service life. Therefore, a copper capillary expansion device is proposed to address the above problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a copper capillary expansion device. In this scheme, a cylinder is used to control the movement of the reaming shaft. The reaming shaft preferably passes through a fixing ring so that lubricating oil is evenly sprayed on the surface of the reaming shaft. Subsequently, the reaming shaft coated with lubricating oil is inserted into the interior of the copper capillary body for reaming. The friction between the reaming shaft and the wall of the copper capillary body can be reduced. The lubricant acts as a flow guide, which can enable the reaming shaft to be smoothly inserted into the copper capillary body, thereby reducing the difficulty of reaming. At the same time, the wear of the reaming shaft is reduced, thereby increasing its service life.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A copper capillary expansion device comprises a workbench and a copper capillary body, wherein the bottom end of the workbench is fixedly connected to a bracket, and the top end of the workbench is fixedly connected to a support plate, an outer end of the support plate is mounted with a cylinder, an output end of the cylinder passes through the cylinder and is fixedly connected to a reaming shaft, and a lubrication assembly is arranged at the top end of the workbench;

[0010] The lubrication assembly comprises a fixing ring, which is fixed to the top of the workbench through a support rod, and a plurality of nozzles evenly distributed are fixedly connected to the inner side of the fixing ring, and the nozzles are communicated with the fixing ring.

[0011] Furthermore, the fixing ring is coaxially arranged with the reaming shaft, and the inner diameter of the fixing ring is larger than the outer diameter of the reaming shaft.

[0012] Furthermore, the lubrication assembly also includes an oil tank fixed to the top of the workbench, the outer end of the oil tank is fixedly connected to a pressure pump, the input end of the pressure pump extends to the inner cavity of the oil tank, and the output end of the pressure pump is fixedly connected to the fixing ring.

[0013] Furthermore, a plurality of evenly distributed oil drip grooves are provided inside the workbench, and the plurality of oil drip grooves are distributed on both sides of the fixing ring.

[0014] Furthermore, a collecting box is fixedly connected to the bottom end of the workbench, and the collecting box is located directly below the plurality of oil drip grooves, and an oil drain pipe connected thereto is installed at the outer end of the collecting box.

[0015] Furthermore, a slide groove is provided at the top of the workbench, and a pair of clamping seats are arranged at the top of the workbench, and the bottom ends of the pair of clamping seats are fixedly connected with sliders, and the sliders are slidably connected to the slide groove, and the sides of the pair of clamping seats close to each other are provided with clamping grooves matching the copper capillary body.

[0016] Furthermore, the inner wall of the slide groove is rotatably connected to a bidirectional screw rod matched with a pair of sliders, and one end of the bidirectional screw rod away from the inner wall of the slide groove passes through the workbench and is fixedly connected to a handle.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] This solution uses a cylinder to control the movement of the reaming shaft, and the reaming shaft passes through a fixed ring first, so that the lubricating oil is evenly sprayed on the surface of the reaming shaft. The reaming shaft coated with the lubricating oil is then inserted into the interior of the copper capillary body for reaming. The friction between the reaming shaft and the wall of the copper capillary body can be reduced. The lubricant acts as a flow guide, which can enable the reaming shaft to be smoothly inserted into the copper capillary body, reducing the difficulty of reaming. At the same time, it reduces the wear of the reaming shaft and increases its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the lubrication component of the utility model.

[0023] Description of the numbers in the figure:

[0024] 1. Workbench; 2. Bracket; 3. Support plate; 4. Cylinder; 5. Reaming shaft; 6. Lubrication assembly; 61. Fixing ring; 62. Nozzle; 63. Oil tank; 64. Pressure pump; 7. Clamp seat; 8. Bidirectional screw rod; 9. Copper capillary body; 10. Collection box; 11. Clamping groove. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Example:

[0029] See also Figure 1-3 A copper capillary expansion device comprises a workbench 1 and a copper capillary body 9, a bracket 2 is fixedly connected to the bottom end of the workbench 1, and a support plate 3 is fixedly connected to the top end of the workbench 1, a cylinder 4 is installed at the outer end of the support plate 3, an output end of the cylinder 4 passes through the cylinder 4 and is fixedly connected to a reaming shaft 5, and a lubrication component 6 is arranged at the top end of the workbench 1;

[0030] The lubrication assembly 6 includes a fixed ring 61, which is fixed to the top of the workbench 1 through a support rod. A plurality of evenly distributed nozzles 62 are fixedly connected to the inner side of the fixed ring 61. The nozzles 62 are connected to the fixed ring 61. An annular cavity is provided in the nozzle 62, and the annular cavity is connected to the fixed ring 61.

[0031] In this solution, the expansion shaft 5 is controlled to move by the cylinder 4 , so that the expansion shaft 5 approaches the connection end of the copper capillary body 9 and is inserted into the inside of the copper capillary body 9 . The expansion shaft 5 can expand the copper capillary body 9 .

[0032] Among them, in the process of the reaming shaft 5 approaching the connecting end of the copper capillary body 9, the reaming shaft 5 preferentially passes through the fixing ring 61, so that the lubricating oil is evenly sprayed on the surface of the reaming shaft 5 through multiple nozzles 62, and then the reaming shaft 5 coated with the lubricating oil on the surface is inserted into the interior of the copper capillary body 9 for reaming, which can reduce the friction between the reaming shaft 5 and the wall of the copper capillary body 9. The lubricant acts as a flow guide, which can make the reaming shaft 5 smoothly inserted into the copper capillary body 9, reduce the difficulty of reaming, and at the same time reduce the wear of the reaming shaft 5 and increase its service life.

[0033] See also Figure 3 The fixing ring 61 is coaxially arranged with the reaming shaft 5 , and the inner diameter of the fixing ring 61 is larger than the outer diameter of the reaming shaft 5 , thereby ensuring that the reaming shaft 5 can smoothly pass through the fixing ring 61 .

[0034] See also Figure 1-3 The lubrication assembly 6 also includes an oil tank 63 fixed to the top of the workbench 1, and a pressure pump 64 is fixedly connected to the outer end of the oil tank 63. The input end of the pressure pump 64 extends to the inner cavity of the oil tank 63, and the output end of the pressure pump 64 is fixedly connected to the fixing ring 61.

[0035] In this embodiment, an oil filling pipe is also installed at the top of the oil tank 63, and lubricating oil can be added to the oil tank 63 through the oil filling pipe. During the process of reaming the copper capillary body 9 by the reaming shaft 5, the reaming shaft 5 preferentially passes through the fixing ring 61. At this time, the lubricating oil in the oil tank 63 can be transported to the fixing ring 61 by starting the pressure pump 64, and then evenly sprayed on the surface of the reaming shaft 5 through multiple nozzles 62, thereby reducing the friction between the reaming shaft 5 and the inner wall of the copper capillary body 9.

[0036] See also Figure 1-2 A plurality of evenly distributed oil drip grooves are provided inside the workbench 1, and the plurality of oil drip grooves are distributed on both sides of the fixed ring 61. A collecting box 10 is fixedly connected to the bottom end of the workbench 1, and the collecting box 10 is located directly below the plurality of oil drip grooves, and an oil drain pipe connected thereto is installed at the outer end of the collecting box 10.

[0037] In this embodiment, the lubricating oil discharged from the lubrication assembly 6 can be discharged through the set oil drip groove, and the collecting box 10 is arranged directly below the oil drip groove to collect the lubricating oil. In addition, a valve for controlling the closure is installed on the oil drain pipe, and the collected lubricating oil can be discharged for recycling by opening the valve.

[0038] See also Figure 1-2 A slide groove is provided at the top of the workbench 1, and a pair of clamping seats 7 are arranged at the top of the workbench 1. The bottom ends of the pair of clamping seats 7 are fixedly connected with sliders, and the sliders are slidably connected to the slide groove. A clamping groove 11 matching the copper capillary body 9 is provided on the side close to each other of the pair of clamping seats 7. A bidirectional screw rod 8 matching the pair of sliders is rotatably connected to the inner wall of the slide groove. The end of the bidirectional screw rod 8 away from the inner wall of the slide groove passes through the workbench 1 and is fixedly connected with a handle.

[0039] The bidirectional screw rod 8 is rotated by controlling the handle, so that the pair of clamping seats 7 move toward each other, and the pair of clamping grooves 11 are combined to form a clamping cavity abutting against the copper capillary body 9, thereby clamping the copper capillary body 9.

[0040] A clamping cavity formed by a combination of a pair of clamping grooves 11 is coaxially arranged with the reaming shaft 5 .

[0041] Working principle: by placing the copper capillary body 9 between a pair of clamping seats 7, and then controlling the bidirectional screw 8 to rotate by the handle, the pair of clamping seats 7 move closer to each other, and a pair of clamping grooves 11 are combined to form a clamping cavity abutting against the copper capillary body 9, so as to clamp the copper capillary body 9, and by controlling the movement of the reaming shaft 5 by the cylinder 4, the reaming shaft 5 will approach the connecting end of the copper capillary body 9 and be inserted into the inside of the copper capillary body 9, and the reaming shaft 5 can reame the copper capillary body 9. In the process of reaming the copper capillary body 9 by the reaming shaft 5, the reaming shaft 5 first passes through the fixing ring 61. At this time, the lubricating oil in the oil tank 63 can be transported to the fixing ring 61 by starting the pressure pump 64, and then evenly sprayed on the surface of the reaming shaft 5 through a plurality of nozzles 62, thereby reducing the friction between the reaming shaft 5 and the inner wall of the copper capillary body 9, reducing the difficulty of reaming, and at the same time reducing the wear degree of the reaming shaft 5, thereby increasing its service life.

[0042] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A copper capillary expansion device, comprising a workbench (1) and a copper capillary body (9), Features: The bottom end of the workbench (1) is fixedly connected to a bracket (2), and the top end of the workbench (1) is fixedly connected to a support plate (3), a cylinder (4) is installed at the outer end of the support plate (3), the output end of the cylinder (4) passes through the cylinder (4) and is fixedly connected to a reaming shaft (5), and a lubrication component (6) is provided at the top end of the workbench (1); The lubrication assembly (6) comprises a fixing ring (61), the fixing ring (61) being fixed to the top of the workbench (1) via a support rod, a plurality of uniformly distributed nozzles (62) being fixedly connected to the inner side of the fixing ring (61), and the nozzles (62) being communicated with the fixing ring (61).

2. A copper capillary expansion device according to claim 1, Features: The fixing ring (61) is coaxially arranged with the hole-expanding shaft (5), and the inner diameter of the fixing ring (61) is greater than the outer diameter of the hole-expanding shaft (5).

3. A copper capillary expansion device according to claim 1, Features: The lubrication assembly (6) further comprises an oil tank (63) fixed to the top of the workbench (1); the outer end of the oil tank (63) is fixedly connected to a pressure pump (64); the input end of the pressure pump (64) extends to the inner cavity of the oil tank (63); and the output end of the pressure pump (64) is fixedly connected to the fixing ring (61).

4. A copper capillary expansion device according to claim 1, Features: A plurality of evenly distributed oil drip grooves are provided inside the workbench (1), and the plurality of oil drip grooves are distributed on both sides of the fixing ring (61).

5. A copper capillary expansion device according to claim 1, Features: A collecting box (10) is fixedly connected to the bottom end of the workbench (1), the collecting box (10) is located directly below the plurality of oil drip grooves, and an oil drain pipe connected to the collecting box (10) is installed at the outer end of the collecting box (10).

6. A copper capillary expansion device according to claim 1, Features: The top of the workbench (1) is provided with a slide groove, and the top of the workbench (1) is provided with a pair of clamping seats (7), the bottom ends of the pair of clamping seats (7) are fixedly connected with sliders, the sliders are slidably connected with the slide groove, and the sides of the pair of clamping seats (7) close to each other are provided with clamping grooves (11) matching the copper capillary body (9).

7. A copper capillary expansion device according to claim 6, Features: The inner wall of the slide groove is rotatably connected to a bidirectional screw rod (8) matching a pair of sliders; one end of the bidirectional screw rod (8) away from the inner wall of the slide groove passes through the workbench (1) and is fixedly connected to a handle.

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