A tool for machining the diameter of a refrigerator capillary tube.

Abstract

This utility model relates to the technical field of capillary processing tools, and discloses a refrigerator capillary diameter changing processing tool. A lower mold fixing plate is movably connected to the top of a fixed base plate. Auxiliary limiting rods are movably sleeved at the top of the fixed base plate and at the four corners of the lower mold fixing plate. An upper mold fixing plate is movably connected to the top of the lower mold fixing plate. A rectangular top plate is fixedly connected to the top of the upper mold fixing plate at the four corners through the surface of the auxiliary limiting rods. A servo motor is fixedly connected to the top of the fixed base plate near the lower mold fixing plate. A lifting rod is driven to the top of the servo motor. By providing a lower mold fixing plate, an upper mold fixing plate, a mold limiting plate, and a diameter changing mold, it is beneficial to make the overall diameter changing tool smaller. Under the constraint of the lower mold fixing plate and the upper mold fixing plate, the positions of the mold limiting plate and the diameter changing mold are kept fixed, avoiding displacement during capillary diameter changing and increasing the quality of actual diameter changing processing.

Description

Technical Field

[0001] This utility model relates to the field of capillary processing tools, and more specifically to a refrigerator capillary diameter reducing processing tool. Background Technology

[0002] The capillary tube in a refrigerator is one of the key components of the refrigeration system. It is usually made of a thin copper tube and is connected between the condenser and the evaporator. Its main function is to convert the high-pressure liquid refrigerant into a low-temperature, low-pressure mist mixture by throttling and reducing pressure, thereby absorbing heat and cooling in the evaporator. The diameter and length of the capillary tube are precisely calculated and directly affect the refrigeration efficiency and system stability. Currently, to meet the needs of different refrigeration systems, refrigerator capillary tubes usually require the use of diameter-changing processing tools to adjust the inner or outer diameter of the capillary tube. However, most existing diameter-changing processing tools are large-scale equipment used in factories, which cannot meet the needs of maintenance, small-batch adjustment, or simple diameter change, resulting in great inconvenience. In addition, when replacing the mold of traditional diameter-changing processing tools, it is necessary to use tools to disassemble multiple fixing bolts and then reinstall the replacement mold after replacement. The operation steps are cumbersome and the manual labor intensity is high. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a refrigerator capillary diameter reduction processing tool to solve the problems existing in the background art.

[0004] This utility model provides the following technical solution: a refrigerator capillary diameter changing processing tool, including a fixed base plate, a lower mold fixing plate movably connected to the top of the fixed base plate, auxiliary limiting rods movably sleeved at the top of the fixed base plate and at the four corners of the lower mold fixing plate, an upper mold fixing plate movably connected to the top of the lower mold fixing plate, a rectangular top plate fixedly connected to the top of the four corners of the upper mold fixing plate through the surface of the auxiliary limiting rods, and a servo motor fixedly connected to the top of the fixed base plate near the lower mold fixing plate, with a lifting rod driven to the top of the servo motor. By providing a lower mold fixing plate, an upper mold fixing plate, a mold limiting plate, and a diameter changing mold, it is beneficial to miniaturize the overall diameter changing tool, and under the constraint of the lower mold fixing plate and the upper mold fixing plate, the positions of the mold limiting plate and the diameter changing mold remain fixed, avoiding displacement during capillary diameter changing and improving the quality of actual diameter changing processing; Furthermore, mold limiting plates are movably connected to the inner positions of the lower mold fixing plate and the upper mold fixing plate on their respective adjacent sides. A diameter-changing mold is movably connected to the inner positions of the mold limiting plates on their respective adjacent sides. By providing the lower mold fixing plate, the upper mold fixing plate, the mold limiting plate, and the diameter-changing mold, the overall diameter-changing tool can be miniaturized. Under the constraint of the lower mold fixing plate and the upper mold fixing plate, the positions of the mold limiting plate and the diameter-changing mold remain fixed, preventing displacement during capillary diameter changing and improving the quality of the actual diameter-changing processing.

[0005] Furthermore, a connecting block is provided on the surface of the rectangular top plate near the servo motor, and the connecting block is movably sleeved on the surface of the lifting rod near the top.

[0006] Furthermore, the lower mold fixing plate has a rectangular groove at the position of the movable connecting mold limiting plate, and rectangular sliding grooves are provided on both sides and the bottom of the rectangular groove. The lower mold fixing plate has circular through holes at the position of the movable sleeve auxiliary limiting rod. A limiting block is provided on the side of the lower mold fixing plate near the servo motor. The lower mold fixing plate helps to limit the position of the mold limiting plate.

[0007] Furthermore, rectangular sliders are provided on both sides and the bottom of the mold limiting plate. Mold grooves are provided on the mold limiting plate at the position where the variable diameter mold is movably connected. Rectangular limiting slots are provided at the bottom of the mold grooves. A fixing screw is movably sleeved on one side of the mold limiting plate. The end of the fixing screw near the mold limiting plate is located inside the rectangular limiting slot. A threaded groove is provided on the inner surface of the fixing screw in the rectangular limiting slot. By providing a fixing screw and a mold limiting plate, it is convenient to separate the variable diameter mold from the mold limiting plate by rotating the fixing screw when the variable diameter mold needs to be replaced. At the same time, the sliding of the mold limiting plate allows for quick disassembly with the lower mold fixing plate and the upper mold fixing plate. The operation is simple and convenient, reducing manual labor intensity and thus improving the processing efficiency of capillary tubes.

[0008] Furthermore, the variable diameter molds have variable diameter grooves on their surfaces that are close to each other, and a limiting mounting block is provided on the side of the variable diameter molds that is close to the mold limiting plate. A mounting screw groove is provided on the inner side of the limiting mounting block. The limiting mounting block helps to restrict the position of the variable diameter molds and prevents them from shifting during the diameter change.

[0009] Furthermore, the lower mold fixing plate and the upper mold fixing plate have the same external shape and structure.

[0010] The technical effects and advantages of this utility model are as follows: 1. This utility model, by providing a lower mold fixing plate, an upper mold fixing plate, a mold limiting plate, and a diameter changing mold, facilitates the miniaturization of the overall diameter changing tool. Under the constraints of the lower mold fixing plate and the upper mold fixing plate, the positions of the mold limiting plate and the diameter changing mold are kept fixed, avoiding displacement during capillary diameter changing and improving the quality of actual diameter changing processing.

[0011] 2. This utility model, by providing a fixing screw and a mold limiting plate, facilitates the separation of the variable diameter mold from the mold limiting plate by rotating the fixing screw when the variable diameter mold needs to be replaced. At the same time, the sliding of the mold limiting plate allows for quick disassembly of the lower mold fixing plate and the upper mold fixing plate. The operation is simple and convenient, reduces the intensity of manual labor, and thus improves the processing efficiency of capillary tubes. Attached Figure Description

[0012] Figure 1 This is a cross-sectional schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the fixed base plate structure of this utility model.

[0015] Figure 4 This is a schematic diagram of the lower mold fixing plate structure of this utility model.

[0016] Figure 5 This is a cross-sectional schematic diagram of the mold limiting plate structure of this utility model.

[0017] Figure 6 This is a cross-sectional schematic diagram of the variable diameter mold structure of this utility model.

[0018] The attached diagram is labeled as follows: 1. Fixed base plate; 2. Lower mold fixing plate; 201. Rectangular groove; 202. Circular through hole; 203. Rectangular slide groove; 204. Limiting block; 3. Auxiliary limiting rod; 4. Upper mold fixing plate; 5. Rectangular top plate; 501. Connecting block; 6. Servo motor; 7. Lifting rod; 8. Mold limiting plate; 801. Rectangular slider; 802. Mold groove; 803. Rectangular limiting groove; 9. Variable diameter mold; 901. Variable diameter groove; 902. Limiting mounting block; 903. Mounting screw groove; 10. Fixed screw. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The refrigerator capillary diameter reducing processing tool involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Reference Figures 1-6 As shown, this utility model provides a refrigerator capillary diameter changing processing tool, including a fixed base plate 1, a lower mold fixing plate 2 movably connected to the top of the fixed base plate 1, auxiliary limiting rods 3 movably sleeved at the top of the fixed base plate 1 and at the four corners of the lower mold fixing plate 2, an upper mold fixing plate 4 movably connected to the top of the lower mold fixing plate 2, a rectangular top plate 5 fixedly connected to the top of the four corners of the upper mold fixing plate 4 through the surface of the auxiliary limiting rods 3, and a servo motor 6 fixedly connected to the top of the fixed base plate 1 near the lower mold fixing plate 2, and a lifting rod 7 drivingly connected to the top of the servo motor 6. By providing a lower mold fixing plate 2, an upper mold fixing plate 4, a mold limiting plate 8, and a diameter changing mold 9, it is beneficial to make the overall diameter changing tool smaller, and under the restriction of the lower mold fixing plate 2 and the upper mold fixing plate 4, the positions of the mold limiting plate 8 and the diameter changing mold 9 are kept fixed, avoiding displacement during capillary diameter changing and improving the quality of actual diameter changing processing; The lower mold fixing plate 2 and the upper mold fixing plate 4 are movably connected to the mold limiting plate 8 on their respective inner positions close to each other. The mold limiting plate 8 is movably connected to the diameter changing mold 9 on its respective inner position close to each other. By providing the lower mold fixing plate 2, the upper mold fixing plate 4, the mold limiting plate 8, and the diameter changing mold 9, it is beneficial to make the overall diameter changing tool smaller. Under the restriction of the lower mold fixing plate 2 and the upper mold fixing plate 4, the mold limiting plate 8 and the diameter changing mold 9 are kept in fixed positions, avoiding displacement during capillary diameter changing and improving the quality of actual diameter changing processing.

[0021] A connecting block 501 is provided on the surface of the rectangular top plate 5 near the servo motor 6. The connecting block 501 is movably sleeved on the surface of the lifting rod 7 near the top.

[0022] The lower mold fixing plate 2 has a rectangular groove 201 at the position of the movable connecting mold limiting plate 8. Rectangular sliding grooves 203 are provided on both sides of the inner wall and the bottom of the rectangular groove 201. The lower mold fixing plate 2 has a circular through hole 202 at the position of the movable sleeve auxiliary limiting rod 3. A limiting block 204 is provided on the side of the lower mold fixing plate 2 near the servo motor 6. The lower mold fixing plate 2 helps to limit the position of the mold limiting plate 8.

[0023] The mold limiting plate 8 has rectangular sliders 801 on both sides and at the bottom. The mold limiting plate 8 has mold grooves 802 at the position where it is movably connected to the variable diameter mold 9. The bottom of the mold grooves 802 has rectangular limiting slots 803. A fixing screw 10 is movably sleeved on one side of the mold limiting plate 8. The end of the fixing screw 10 near the mold limiting plate 8 is located inside the rectangular limiting slot 803. The fixing screw 10 has a threaded groove on the inner surface of the rectangular limiting slot 803. With the fixing screw 10 and the mold limiting plate 8, when the variable diameter mold 9 needs to be replaced, the variable diameter mold can be separated from the mold limiting plate 8 by rotating the fixing screw 10. At the same time, the sliding of the mold limiting plate 8 allows for quick disassembly with the lower mold fixing plate 1 and the upper mold fixing plate 3. The operation is simple and convenient, reduces manual labor intensity, and improves the processing efficiency of capillary tubes.

[0024] Among them, the diameter-changing mold 9 has a diameter-changing groove 901 on one side of its surface, and a limit mounting block 902 is provided on the side of the diameter-changing mold 9 near the mold limiting plate 8. A mounting screw groove 903 is provided on the inner side of the limit mounting block 902. The limit mounting block 902 helps to limit the position of the diameter-changing mold 9 and prevent it from shifting during diameter change.

[0025] The lower mold fixing plate 2 and the upper mold fixing plate 4 have the same external structure.

[0026] The working principle of this utility model: First, when the capillary is being processed to change diameter, the servo motor 6 is started, which drives the lifting rod 7 to rotate. Then, the rotation of the lifting rod 7 causes the upper mold fixing plate 4 to rise under the restriction of the auxiliary limit rod 3. Then, the capillary to be processed is placed in the diameter changing groove 901. At this time, the servo motor 6 is started again, which drives the upper mold fixing plate 4 to move closer to the top of the lower mold fixing plate 2. At this time, the diameter changing mold 9 squeezes the capillary through the diameter changing groove 901. Then, the capillary is pulled through the side of the diameter changing groove 901, so that the squeezed capillary is pulled to one side through the inside of the diameter changing groove 901. At this time, the capillary changes diameter through the diameter changing groove 901. Then, when it is necessary to replace the variable diameter mold 9, rotate the fixing screw 10 so that the fixing screw 10 is away from the mold limiting plate 8. At this time, the fixing screw 10 is pulled away from the position of the mounting screw groove 903 at one end of the rectangular limiting groove 803. At this time, the variable diameter mold 9 is separated from the mold groove 802 opened in the mold limiting plate 8. Then pull the mold limiting plate 8 so that the mold limiting plate 8 is away from the top upper mold fixing plate 4. Then the variable diameter mold 9 at the position of the mold limiting plate 8 inside the upper mold fixing plate 4 moves away from the mold limiting plate 8 inside the upper mold fixing plate 4. Then take out the variable diameter mold 9 at the top of one side inside the mold groove 802. Then put the newly replaced variable diameter mold 9 into the mold groove 802. Then push the mold limiting plate 8 into the position inside the lower mold fixing plate 2. Then rotate the fixing screw 10 so that the fixing screw 10 fixes the variable diameter mold 9 inside the mold groove 802.

[0027] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tool for processing capillary tubes in refrigerators, comprising a fixed base plate (1), characterized in that: The fixed base plate (1) is movably connected to the top of the lower mold fixing plate (2). The fixed base plate (1) is movably fitted with auxiliary limiting rods (3) at the top and inside the four corners of the lower mold fixing plate (2). The lower mold fixing plate (2) is movably connected to the top of the upper mold fixing plate (4). The surface of the auxiliary limiting rods (3) passes through the top of the four corners of the upper mold fixing plate (4) and is fixedly connected with a rectangular top plate (5). The fixed base plate (1) is fixedly connected to the side of the lower mold fixing plate (2) on the top. The servo motor (6) is connected to the top of the servo motor (6) via a lifting rod (7).

2. The refrigerator capillary tube diameter reducing tool according to claim 1, characterized in that: The lower mold fixing plate (2) and the upper mold fixing plate (4) are movably connected to mold limiting plates (8) on their inner sides, and the mold limiting plates (8) are movably connected to variable diameter molds (9) on their inner sides.

3. The refrigerator capillary tube diameter reducing tool according to claim 1, characterized in that: A connecting block (501) is provided on the side surface of the rectangular top plate (5) near the servo motor (6), and the connecting block (501) is movably sleeved on the surface of the lifting rod (7) near the top.

4. The refrigerator capillary tube diameter reducing tool according to claim 1, characterized in that: The lower mold fixing plate (2) is provided with a rectangular groove (201) at the position of the movable connecting mold limiting plate (8). Rectangular sliding grooves (203) are provided on both sides and the bottom of the inner wall of the rectangular groove (201). The lower mold fixing plate (2) is provided with a circular through hole (202) at the position of the movable sleeve auxiliary limiting rod (3). A limiting block (204) is provided on the side of the lower mold fixing plate (2) near the servo motor (6).

5. A refrigerator capillary tube diameter reducing tool according to claim 2, characterized in that: The mold limiting plate (8) has rectangular sliders (801) on both sides and at the bottom. The mold limiting plate (8) has mold grooves (802) at the position where it is connected to the variable diameter mold (9). The bottom of the mold grooves (802) has rectangular limiting grooves (803). A fixing screw (10) is movably sleeved on one side of the mold limiting plate (8). The fixing screw (10) is located inside the rectangular limiting groove (803) at one end near the mold limiting plate (8). The fixing screw (10) has a threaded groove on the inner surface of the rectangular limiting groove (803).

6. The refrigerator capillary tube diameter reducing tool according to claim 2, characterized in that: The variable diameter mold (9) has a variable diameter groove (901) on one side of its surface, and a limit mounting block (902) is provided on the side of the variable diameter mold (9) near the mold limiting plate (8). An installation screw groove (903) is provided on the inside of one side of the limit mounting block (902).

7. The refrigerator capillary tube diameter reducing tool according to claim 1, characterized in that: The lower mold fixing plate (2) and the upper mold fixing plate (4) have the same external structure.

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