Grounding body heat release welding die

Abstract

The utility model discloses a grounding body heat release welding die, which belongs to the technical field of grounding body connection, and comprises a welding fixing plate used for welding and shaping, a heat dissipation box is arranged on the side surface of the welding fixing plate, an air inlet pipe is connected to the side surface of the heat dissipation box, an air inlet fan used for heat dissipation is arranged in the air inlet pipe, and an air outlet fan used for heat dissipation is arranged in the air inlet fan. A water outlet pipe is connected to the interior of the heat dissipation box, a flow guide cover is installed at one end of the water outlet pipe, vertical cooling fins are installed on the vertical inner wall of the welding fixing plate, transverse cooling fins are arranged at the bottoms of the vertical cooling fins, a water inlet pipe is connected to the interior of the welding fixing plate, and a first water passing cavity is connected to the other end of the water outlet pipe; the end, away from the water outlet pipe, of the first water passing cavity is connected with an arc-shaped water cavity used for cooling, and the end, away from the first water passing cavity, of the arc-shaped water cavity is connected with a second water passing cavity.

Description

Technical Field

[0001] This utility model belongs to the field of grounding electrode connection technology, and in particular to a grounding electrode exothermic welding mold. Background Technology

[0002] In fields such as power, communications, and construction, the reliability of grounding systems is crucial. The connection quality between grounding electrodes directly affects the performance of the grounding system. Currently, common grounding electrode connection methods include mechanical connection and welding. However, traditional welding methods suffer from problems such as unstable weld quality, complex operation, and low efficiency. Exothermic welding, as a novel welding method, has advantages such as high weld quality, simple operation, and high efficiency, and is gradually being widely used. Existing molds can complete basic welding, but the inability of the molds to dissipate heat in time will affect the weld quality and degrade material properties.

[0003] A search revealed a Chinese patent document (authorization announcement number CN207464447U). This utility model provides a convenient exothermic welding mold for a grounding system, comprising a mold body. The mold body is characterized by: an upper end cover on top and a lower end cover on the bottom; an ignition hole in the center of the upper end cover; the mold body is hinged to the upper and lower end covers; a reaction chamber penetrating its upper surface is located at the top of the mold body; a welding cavity placement chamber penetrating its lower surface is located at the bottom; U-shaped grooves penetrating the four sides and the lower surface of the mold body are arranged around the welding cavity placement chamber; a welding cavity bladder is placed inside the welding cavity placement chamber; a drainage groove connecting the bottom of the reaction chamber and the welding cavity placement chamber is provided; the welding cavity bladder is a separate structure, with welding cavities corresponding to different standard conductor connectors inside. By setting a detachable welding chamber, a series of standard connector welding chambers are designed, enabling one mold to be used for multiple purposes in exothermic welding. The mold structure is simple, the welding chamber can be replaced quickly and conveniently, and the welding efficiency is higher. The mold can complete basic welding, but the inability of the mold to dissipate heat in time will affect the welding quality and reduce the material properties. Utility Model Content

[0004] The purpose of this invention is to provide a grounding electrode exothermic welding mold to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grounding body exothermic welding mold, comprising a welding fixing plate for welding shaping, a heat dissipation box provided on the side of the welding fixing plate, an air inlet pipe connected to the side of the heat dissipation box, an air inlet fan for heat dissipation installed inside the air inlet pipe, a water outlet pipe connected inside the heat dissipation box, a guide shroud installed at one end of the water outlet pipe, vertical heat dissipation fins installed on the vertical inner wall of the welding fixing plate, horizontal heat dissipation fins provided at the bottom of the vertical heat dissipation fins, a water inlet pipe connected inside the welding fixing plate, a first water passage cavity connected to the other end of the water outlet pipe, an arc-shaped water cavity for cooling connected to the end of the first water passage cavity away from the water outlet pipe, a second water passage cavity connected to the end of the arc-shaped water cavity away from the first water passage cavity, and one end of the second water passage cavity connected to the water inlet pipe.

[0006] Preferably, the heat sink is equipped with a slide rail inside, and a cooling position is slidably arranged inside the slide rail. The top of the heat sink is provided with a sealing cover, and an air outlet pipe is connected to the side of the heat sink.

[0007] Preferably, the welding fixing plate has a reaction chamber and an ignition hole inside, and the bottom of the reaction chamber has a drainage groove.

[0008] Preferably, the end of the diversion channel away from the reaction chamber is connected to a welding chamber placement chamber, and the two ends of the welding chamber placement chamber are provided with grounding conductor connection chambers.

[0009] Preferably, the welding fixing plate is provided with a top cover plate on the top and a base plate on the bottom.

[0010] Preferably, a fixing frame is installed on the top of the base, and a lead screw is connected inside the fixing frame.

[0011] Preferably, a rotating frame is installed at one end of the lead screw, a fixed block is installed at the other end of the lead screw, and a movable block is connected to the outer periphery of the lead screw.

[0012] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0013] This grounding electrode exothermic welding mold benefits from the structure of the heat dissipation box. Air enters the heat dissipation box and comes into contact with the vertical and horizontal heat dissipation fins. The air through the air inlet pipe exchanges heat with the coolant of the vertical and horizontal heat dissipation fins, and the heat is discharged from the air outlet pipe. This structure can dissipate heat from the welding part in a timely manner, improve the welding quality, and enhance the material properties.

[0014] This grounding electrode exothermic welding mold benefits from the structure of the arc-shaped water cavity, the first water passage cavity, and the second water passage cavity. Using a water pump, coolant enters the second water passage cavity and the arc-shaped water cavity through the inlet pipe, then enters the outlet pipe through the arc-shaped water cavity and the first water passage cavity, and falls through the outlet pipe and the guide shroud. This structure can reduce the heat generated by the welding fixing plate and reduce the impact of temperature difference changes on the welding process. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the welding fixing plate of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the heat dissipation box of this utility model;

[0020] Figure 5 This is a cross-sectional view of the welding fixing plate of this utility model;

[0021] Figure 6 This is a cross-sectional view of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] In the diagram: 1. Base; 101. Rotating frame; 102. Fixed frame; 103. Lead screw; 104. Moving block; 105. Fixed block; 2. Welding fixing plate; 3. Heat sink; 301. Air inlet pipe; 302. Air inlet fan; 303. Air outlet pipe; 304. Slide rail; 305. Cooling position; 306. Sealing cover; 4. Water outlet pipe; 401. Water inlet pipe; 402. Flow guide; 403. Vertical heat sink; 404. Horizontal heat sink; 405. Arc-shaped water cavity; 406. First water passage cavity; 407. Second water passage cavity; 5. Reaction chamber; 501. Ignition hole; 502. Grounding conductor connection cavity; 503. Welding cavity placement chamber; 504. Drainage groove; 6. Top cover plate. Detailed Implementation

[0024] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0025] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0026] like Figures 1 to 6 The illustrated grounding electrode exothermic welding mold includes a welding fixing plate 2 for welding shaping, a heat dissipation box 3 on the side of the welding fixing plate 2, an air inlet pipe 301 connected to the side of the heat dissipation box 3, an air inlet fan 302 for heat dissipation installed inside the air inlet pipe 301, a water outlet pipe 4 connected inside the heat dissipation box 3, a guide shroud 402 installed at one end of the water outlet pipe 4, vertical heat dissipation fins 403 installed on the vertical inner wall of the welding fixing plate 2, and horizontal heat dissipation fins 404 arranged at the bottom of the vertical heat dissipation fins 403. Air is in contact with the vertical and horizontal heat dissipation fins 403 and 404, and heat exchange occurs between the air through the air inlet pipe 301 and the coolant in the vertical and horizontal heat dissipation fins 403 and 404. Air is discharged from the air outlet duct 303. The inside of the welded fixing plate 2 is connected to the water inlet pipe 401. The other end of the water outlet pipe 4 is connected to the first water passage chamber 406. The end of the first water passage chamber 406 away from the water outlet pipe 4 is connected to the arc-shaped water passage chamber 405 for cooling. The end of the arc-shaped water passage chamber 405 away from the first water passage chamber 406 is connected to the second water passage chamber 407. One end of the second water passage chamber 407 is connected to the water inlet pipe 401. When the air inlet fan 302 is turned on, air enters the heat sink 3. Using the water pump, the coolant enters the second water passage chamber 407 and the arc-shaped water passage chamber 405 through the water inlet pipe 401, and then enters the water outlet pipe 4 through the arc-shaped water passage chamber 405 and the first water passage chamber 406. The coolant then falls through the water outlet pipe 4 and the guide shroud 402.

[0027] The heat sink 3 has a slide rail 304 installed inside, with a cooling position 305 sliding inside the slide rail 304. A sealing cover 306 is installed on the top of the heat sink 3, and an air outlet 303 is connected to the side of the heat sink 3. The welding fixing plate 2 has a reaction chamber 5 and an ignition hole 501 inside. A flow channel 504 is installed at the bottom of the reaction chamber 5. Ignition is achieved through the ignition hole 501, igniting the aluminothermic flux. The aluminothermic flux (usually containing aluminum powder and metal oxides, such as iron oxide) is placed in the reaction chamber of the mold, and the aluminothermic reaction is initiated by the ignition device. Aluminum and metal oxides react violently at high temperatures, generating a large amount of heat, reaching temperatures above 2500℃. This heat is sufficient to melt the welding parts of the grounding electrode and fuse the metal in the flux (the liquid metal generated by the reaction) with the grounding electrode, forming a strong electrical connection after cooling. The welding solution enters the welding chamber placement chamber 503 through the guide channel 504 and combines with the grounding electrode to be welded. The end of the guide channel 504 away from the reaction chamber 5 is connected to the welding chamber placement chamber 503, which is located inside the mold. Its shape and size are designed according to the shape of the grounding electrode and the welding requirements. For example, for a circular grounding rod, the welding chamber may be cylindrical; for a flat grounding electrode, the welding chamber is designed to be flat. The inner wall of the welding chamber needs to have a certain degree of smoothness to ensure welding quality and avoid defects such as porosity or slag inclusions. Grounding electrode conductor connection chambers 502 are provided at both ends of the welding chamber placement chamber 503. The grounding electrode to be welded is inserted into the grounding electrode conductor connection chamber 502, the aluminothermic welding flux is poured into the reaction chamber 5, and the upper cover plate 6 is closed.

[0028] The welding fixing plate 2 is provided with a top cover plate 6, and a base 1 is provided at the bottom of the welding fixing plate 2. A fixing frame 102 is installed on the top of the base 1. A lead screw 103 is connected inside the fixing frame 102. A rotating frame 101 is installed at one end of the lead screw 103, and a fixing block 105 is installed at the other end of the lead screw 103. A moving block 104 is connected to the outer periphery of the lead screw 103. When the rotating frame 101 is rotated, the rotating frame 101 drives the lead screw 103 to rotate. The lead screw 103 drives the moving block 104 to move. The moving block 104 drives the two welding fixing plates 2 to separate, thus completing the welding.

[0029] Working principle

[0030] In use of this exothermic welding mold for grounding electrodes, the grounding electrode to be welded is first inserted into the conductor connection cavity 502, the aluminothermic welding flux is poured into the reaction chamber 5, the upper cover 6 is closed, and ignition is performed through the ignition hole 501. The aluminothermic welding flux is ignited, and the welding solution enters the welding chamber placement chamber 503 through the guide groove 504 to combine with the grounding electrode to be welded. The intake fan 302 is turned on, and air enters the heat dissipation box 3. Using a water pump, coolant enters the second water passage chamber 407 and the arc-shaped water passage chamber 405 through the water inlet pipe 401. The water enters the outlet pipe 4 through the cavity 405 and the first water passage cavity 406, and falls through the outlet pipe 4 and the guide shroud 402, contacting the vertical heat sink 403 and the horizontal heat sink 404. The air through the air inlet pipe 301 exchanges heat with the coolant of the vertical heat sink 403 and the horizontal heat sink 404, and the heat is discharged from the air outlet pipe 303. The rotating frame 101 is rotated, which drives the lead screw 103 to rotate. The lead screw 103 drives the moving block 104 to move, and the moving block 104 drives the two welding fixing plates 2 to separate, completing the welding.

[0031] It should be noted that in this article, relational terms such as one and two are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grounding electrode exothermic welding mold, comprising a welding fixing plate (2) for welding shaping, characterized in that: A heat dissipation box (3) is provided on the side of the welding fixing plate (2). An air inlet pipe (301) is connected to the side of the heat dissipation box (3). An air inlet fan (302) for heat dissipation is installed inside the air inlet pipe (301). A water outlet pipe (4) is connected inside the heat dissipation box (3). A guide shroud (402) is installed at one end of the water outlet pipe (4). A vertical heat dissipation fin (403) is installed on the vertical inner wall of the welding fixing plate (2). A horizontal heat dissipation fin (403) is provided at the bottom of the vertical heat dissipation fin (403). The heat sink (404) is connected to the inside of the welding fixing plate (2) with a water inlet pipe (401). The other end of the water outlet pipe (4) is connected to a first water passage cavity (406). The end of the first water passage cavity (406) away from the water outlet pipe (4) is connected to an arc-shaped water cavity (405) for cooling. The end of the arc-shaped water cavity (405) away from the first water passage cavity (406) is connected to a second water passage cavity (407). One end of the second water passage cavity (407) is connected to the water inlet pipe (401).

2. The exothermic welding mold for grounding conductors according to claim 1, characterized in that: The heat sink (3) is equipped with a slide rail (304) inside, and a cooling position (305) is slidably provided inside the slide rail (304). A sealing cover (306) is provided on the top of the heat sink (3), and an air outlet pipe (303) is connected to the side of the heat sink (3).

3. The exothermic welding mold for grounding conductors according to claim 1, characterized in that: The welding fixing plate (2) is provided with a reaction chamber (5) and an ignition hole (501) inside, and a flow channel (504) is provided at the bottom of the reaction chamber (5).

4. The exothermic welding mold for a grounding electrode according to claim 3, characterized in that: The end of the diversion channel (504) away from the reaction chamber (5) is connected to the welding chamber placement chamber (503), and the two ends of the welding chamber placement chamber (503) are provided with grounding conductor connection chambers (502).

5. The exothermic welding mold for a grounding electrode according to claim 4, characterized in that: The welding fixing plate (2) is provided with a top cover plate (6) on the top and a base plate (1) on the bottom.

6. The exothermic welding mold for a grounding electrode according to claim 5, characterized in that: A fixing frame (102) is installed on the top of the base (1), and a lead screw (103) is connected inside the fixing frame (102).

7. A grounding electrode exothermic welding mold according to claim 6, characterized in that: A rotating frame (101) is installed at one end of the lead screw (103), a fixing block (105) is installed at the other end of the lead screw (103), and a moving block (104) is connected to the outer periphery of the lead screw (103).

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