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CN-224222544-U - Tube expander for condenser processing

CN224222544UCN 224222544 UCN224222544 UCN 224222544UCN-224222544-U

Abstract

The utility model discloses a tube expander for condenser processing, and belongs to the technical field of condenser processing. The utility model discloses a pipe expander for condenser processing, which comprises a frame, wherein a die comprises a lower die fixedly arranged on the frame and an upper die arranged on the frame in a lifting manner, at least one first die cavity is formed at the top of the lower die, a second die cavity corresponding to the first die cavity is formed at the bottom of the upper die, a plurality of groups of spray holes for spraying lubricating oil are formed at the bottom in the first die cavity, and an oil supply part for supplying oil to the spray holes is arranged on the frame.

Inventors

  • Dou Xianliang
  • LIU JIANBO
  • Bing Xiujuan

Assignees

  • 青岛福湖铜件有限公司

Dates

Publication Date
20260512
Application Date
20250609

Claims (6)

  1. 1. The tube expander for condenser processing comprises a frame (1), wherein a die is arranged on the frame (1), a hydraulic tube expander (301) is arranged in the die in a sliding manner, and the tube expander is characterized in that the die comprises a lower die (2) fixedly arranged on the frame (1) and an upper die (201) arranged on the frame (1) in a lifting manner, At least one first die cavity (202) is formed in the top of the lower die (2), a second die cavity (203) corresponding to the first die cavity (202) is formed in the bottom of the upper die (201), the hydraulic expander (301) is slidably arranged in the first die cavity (202) and the second die cavity (203), a plurality of groups of spray holes (206) for spraying lubricating oil are formed in the inner bottom of the first die cavity (202), and an oil supply part for supplying oil to the spray holes (206) is arranged on the frame (1).
  2. 2. The tube expander for condenser processing according to claim 1, wherein a push plate (3) is slidably arranged on the frame (1), one end of the hydraulic tube expander (301) is detachably arranged on the push plate (3), a guide groove (102) is formed in the frame (1), a guide block is fixedly arranged at the bottom of the push plate (3), the guide block is slidably connected in the guide groove (102), a screw is rotationally arranged in the guide groove (102), the guide block is in threaded connection with the screw, and a motor for driving the screw to rotate is fixedly arranged on the frame (1).
  3. 3. The tube expander for condenser processing according to claim 2, wherein the oil supply part comprises an oil tank fixedly arranged at the bottom of the frame (1), a piston cavity (103) is formed in the frame (1), a piston plate is slidably arranged in the piston cavity (103), a push rod (4) is fixedly arranged at one end of the piston plate, one end of the push rod (4) extending out of the piston cavity (103) is fixedly connected with the push plate (3), a first pipeline (401) and a second pipeline (402) are fixedly arranged on the piston cavity (103), a plurality of groups of spray holes (206) are communicated with the first pipeline (401), the second pipeline (402) is communicated with the inside of the oil tank, and one-way valves are fixedly arranged on the first pipeline (401) and the second pipeline (402).
  4. 4. A tube expander for processing a condenser according to claim 3, wherein the lower die (2) is internally provided with a shunt tube (207), a plurality of groups of the spray holes (206) are all communicated with the shunt tube (207), and one end of the first pipeline (401) far away from the piston cavity (103) is communicated with the shunt tube (207).
  5. 5. The condenser tube expander for processing according to claim 2, wherein a limit groove (204) is formed in the lower die (2), a clamping plate (5) with an inverted Z-shaped structure is arranged in the limit groove (204) in a sliding manner, one end of the clamping plate (5) extending out of the limit groove (204) is abutted against the push plate (3), a clamping groove (205) is formed in the upper die (201), the other end of the clamping plate (5) is connected with the clamping groove (205) in a clamping manner, and springs are arranged in the limit groove (204), and two ends of each spring are abutted against the clamping plate (5) and the limit groove (204) respectively.
  6. 6. The condenser tube expander for machining according to claim 1, wherein the mounting plate (101) is arranged on the frame (1) in a lifting manner, the top of the upper die (201) is fixedly arranged at the bottom of the mounting plate (101), and a hydraulic cylinder for driving the mounting plate (101) to lift is fixedly arranged on the frame (1).

Description

Tube expander for condenser processing Technical Field The utility model relates to the technical field of condenser processing, in particular to a tube expander for condenser processing. Background The condenser is a heat exchange device, and is mainly used for converting high-temperature and high-pressure gaseous refrigerant or working medium into liquid state through heat dissipation and cooling. The core function of the device is to realize the phase change process (gas-liquid state) by releasing sensible heat and latent heat, and the device is widely applied to the fields of refrigeration systems (such as air conditioners and refrigerators), industrial cooling, electric power, chemical industry and the like. The condenser is internally provided with a heat exchange tube array, the heat exchange tubes are mostly straight tubes and also have a waist drum-shaped structure, wherein the heat exchange tubes of the waist drum-shaped structure are generally processed by using a tube expander, and the tube expander is divided into a hydraulic tube expander and a mechanical tube expander. When the hydraulic pipe expander is used, the pipeline is placed in the mould, the hydraulic pipe expander is inserted into the pipeline, high-pressure liquid is injected into the hydraulic pipe expander to expand the pipe wall to fit the mould, the shape with large middle and small two ends is formed, the hydraulic pipe expander consists of a high-strength alloy steel core rod and high-pressure resistant elastic rubber, the high-pressure hydraulic pressure provided by a hydraulic station is utilized, when ultrahigh hydraulic pressure enters the high-pressure resistant elastic rubber body through the high-strength alloy core rod, the high-pressure resistant elastic rubber body generates radial pressure, and the pressure is enough to enable the pipe material to generate plastic deformation, so that the expansion joint between the pipe and the pipe plate is realized. At present, when a pipeline is placed in a die to perform pipe expanding operation, the outer wall of the pipeline is in hard contact with the die, so that scratches or abrasion are easily caused on the outer wall of the pipeline, and the surface quality of a finished product is affected. Disclosure of utility model The utility model aims to solve the problems that in the prior art, the outer wall of a pipeline is in hard contact with the inner cavity of a die, and scratches or abrasion are easy to occur on the outer wall of the pipeline, and provides a pipe expander for processing a condenser. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The utility model provides a condenser processing is with expander, includes the frame, be provided with the mould in the frame, just slide in the mould and be provided with hydraulic expander, the mould is including fixed setting up lower mould in the frame, and go up and down to set up go up the mould in the frame, wherein, at least one first die cavity has been seted up at the lower mould top, go up the mould bottom and seted up the second die cavity corresponding with first die cavity, hydraulic expander slides and sets up in first die cavity and second die cavity, just the multiunit is used for spraying the orifice of lubricating oil is offered to the bottom in the first die cavity, be provided with the oil feed portion that is used for the orifice fuel feeding in the frame. For conveniently driving the hydraulic expander to slide, preferably, the frame is provided with the push pedal in a sliding way, hydraulic expander one end is dismantled and is set up in the push pedal, just set up the guide way in the frame, the fixed guide block that is provided with in push pedal bottom, guide block sliding connection is in the guide way, the guide way internal rotation is provided with the screw rod, guide block and screw rod threaded connection, fixed being provided with in the frame is used for driving screw rod pivoted motor. In order to be convenient for carry out the fuel feeding for the orifice, further, the fuel feeding portion is including fixed the setting is in the oil tank of frame bottom, set up the piston chamber in the frame, the piston chamber is provided with the piston board in the slip, piston board one end is fixed to be provided with the push rod, the one end that the push rod extends the piston chamber and push pedal fixed connection, just fixed being provided with on the piston chamber first pipeline and second pipeline, multiunit the orifice all is linked together with first pipeline, the second pipeline is linked together with the oil tank, all fixed being provided with the check valve on first pipeline and the second pipeline. In order to facilitate oil supply to the plurality of groups of spray holes, further, the lower die is internally provided with a shunt pipe, the plurality of groups of spray holes are communicated with the shunt pipe, and one end