Copper stranded wire welding auxiliary device for transformer substation construction

Abstract

The invention relates to the technical field of copper stranded wire welding, and discloses a copper stranded wire welding auxiliary device for transformer substation construction, which comprises a mold, a copper stranded wire, a grounding rod, a clamp and a propelling assembly which are mutually combined to play a role, and welding powder is ignited, so that the welding powder is molten into a liquid state and flows into a welding cavity from a flow guide hole; when the welding powder liquid is solidified in the welding cavity, a welding spot is formed, the purpose of welding is achieved, in the process, an operator does not need to use a clamp to clamp the two copper stranded wires, and the welding efficiency is greatly improved. According to the copper stranded wire welding clamp, the two copper stranded wires can be continuously pushed, the adjacent ends of the two copper stranded wires are automatically and continuously contacted through the pushing assembly, the two copper stranded wires can be continuously pushed, the problem that in the prior art, the two copper stranded wires cannot be continuously pushed through the clamp is solved, and therefore the two copper stranded wires are welded more firmly.

Description

Technical Field

[0001] The present invention relates to the technical field of copper stranded wire welding, and specifically to an auxiliary device for copper stranded wire welding in substation construction. Background Art

[0002] In substation construction, the welding of copper stranded wire is an important link. To assist the smooth progress of this process, a variety of auxiliary devices for copper stranded wire welding have been designed and applied. For example, the exothermic welding mold is a special mold for welding copper stranded wire to a grounding rod. The exothermic welding mold is made of high-purity graphite or other high-temperature resistant materials and is mainly used for the forming of the welding head in grounding exothermic welding. It accommodates exothermic welding powder and the metal components to be welded and forms a welding joint during the welding process. The exothermic welding mold is widely used in many fields such as the power system, construction projects, communication facilities, petrochemical industry, railway construction, etc., especially for the welding of metal materials in lightning protection grounding projects.

[0003] For example, a Chinese patent with the publication number CN220462583U discloses an exothermic welding mold, belonging to the technical field of exothermic welding molds. The exothermic welding mold includes a mold body and a first mold and a second mold that constitute the mold body. A hot welding hole is opened at the top end of the mold body, and feeding holes communicating with the hot welding hole are opened at both ends of the mold body. A sealing cover is hingedly installed at the top end of the first mold. A clamping groove is opened at the top end of the second mold, and connecting holes are symmetrically opened on the side walls of the second mold and the first mold. A sealing plate is embedded and fixed in the sealing cover, and a clamping block that fits and plugs into the clamping groove is fixed on the side wall of the sealing plate. A pressure discharge hole is opened at the central position of the sealing plate. A fastening component is arranged between the plurality of connecting holes. Positioning blocks are symmetrically fixed on the side wall of the first mold. This exothermic welding mold avoids the sealing cover being flushed open by the pressure generated by heat, which affects the welding effect.

[0004] For example, a Chinese patent with the publication number CN207309191U discloses an exothermic welding mold, including a mold body and a mold clamp. The mold body includes an upper end cover, a mold body, and a lower end cover. The upper end cover is hingedly connected to the upper end of the mold body through a hinge, and a buckle is arranged between the upper end cover and the mold body. An ignition hole is opened at the lower end of one side surface of the upper end cover. A material storage cavity and an upper groove are arranged inside the mold body. A material discharge through hole communicating with the upper groove is opened at the bottom wall of the material storage cavity, and a cover plate covers the upper end of the material discharge through hole. An insertion port for inserting welding materials and communicating with the upper groove is opened at the lower end of the side surface of the mold body. The lower end cover is detachably connected to the mold body through the mold clamp, and a lower groove corresponding to the upper groove is arranged in the middle of the lower end cover. The utility model has the advantages of good fixing effect, convenient use, strong stability, and good welding effect.

[0005] As disclosed in the Chinese patent with the publication number CN209334990U, a graphite hot-melt welding mold is disclosed, which includes two mold bodies. A welding chamber is provided on each of the two mold bodies. A runner is connected to the lower end of the welding chamber, and a connection hole is connected to the lower end of the runner and penetrates through the two mold bodies. One of the two mold bodies is rotatably connected to a cover on the side away from the welding chamber at the upper end. A fixing device is provided on the two mold bodies together. In the utility model, the side connecting plate and the clamping plate surround the mold body. The movable cavity on the clamping plate passes through the sliding rod. By pulling the sliding rod and rotating the clamping block, the clamping block can be clamped into the clamping groove. Under the elastic force of the spring, the sliding rod is driven to reset, so as to apply a pulling force to the clamping block, so that the clamping block presses the clamping plate through the clamping groove, so that the two mold bodies are kept stable. The use of bolts is not required, and the impact force between the molds during locking is reduced. While the molds are locked, the quality of the welding joint is guaranteed.

[0006] As disclosed in the Chinese patent with the publication number CN209792862U, a detachable exothermic welding mold is disclosed, which relates to the technical field of molds. Aiming at the problems of being difficult to disassemble and the flame being easy to burn workers in the existing ones, the following scheme is proposed. It includes a detachable exothermic welding mold, which includes a lower mold, a first upper mold and a second upper mold. A first mold cavity is provided above the lower mold, and a second mold cavity is provided below the first upper mold and the second upper mold, and the first mold cavity and the second mold cavity are connected in cooperation. Connecting blocks are provided below the first upper mold and the second upper mold, and the connecting blocks are fixedly connected to the lower mold. A connecting strip is fixedly connected to one side of the first upper mold and the second upper mold. The structure of the utility model is simple and convenient to use. The detachable mold setting can facilitate the cleaning and storage of the mold. At the same time, the setting of the ventilation pipe can limit the flame direction and reduce the possibility of burning the operator.

[0007] As disclosed in the Chinese patent with the publication number CN215966855U, an exothermic welding mold is disclosed, which relates to the technical field of exothermic welding. In order to solve the problem that the hot air flow generated during the combustion of the existing exothermic welding mold is discharged from the diversion groove on the end face of the upper cover, and the hot air flow stays in the mold for a short time, and the heating efficiency of the mold needs to be improved. Two discharge grooves are provided on the outer surface of one side of the welding mold body. An installation slot is provided on each of the symmetric inner walls of the discharge groove. An insertion bar is inserted into the discharge groove. A limiting bar is integrally connected to each of the symmetric side surfaces of the insertion bar, and the limiting bar is inserted into the installation slot. The lower end face of the insertion bar does not fit the bottom end face of the discharge groove. An insertion bar end block is integrally connected to the upper end of the insertion bar. A combustion cavity is provided on the outer surface of one side of the welding mold body.

[0008] As disclosed in the Chinese patent with the publication number CN217529770U, a copper discharge heat welding die is disclosed, which includes a first welding die body. In the middle of one side of the first welding die body, a lapping bracket is fixedly connected. In the middle of one side of the lapping bracket, a placing rod is fixedly connected. On one side of the inner wall of the placing rod, a fixing frame is fixedly connected. In the middle of the top of the fixing frame, a shockproof frame is inserted. In the middle of the bottom of the shockproof frame, a shock-absorbing spring is connected, and the bottom end of the shock-absorbing spring is arranged on the inner wall of the fixing frame. One end of the placing rod is fixedly connected with an adapter rod. Through the settings of the lapping bracket, the placing rod, the fixing frame, the shockproof frame, the shock-absorbing spring and the adapter rod, after the welding object is limited, the pressure at the tail is relatively large, which causes it to press the shockproof frame, so that the internal shock-absorbing spring absorbs the shock of the welding object, thereby achieving the effect of protecting and damping the welding object inside the device, and facilitating the operation of the staff.

[0009] To sum up, the existing copper stranded wire welding devices, including the content of the above-mentioned comparative document, all form a complete die through components such as a die cover and a die body. When in use, a hinge or a structure similar to a clamp is used to combine the die cover and the die body together to form a complete die cavity, so as to realize the forming of the solder. However, there are many drawbacks, which are summarized as follows:

[0010] ① The usability of the welding die needs to be improved; specifically, after the copper stranded wire and the grounding rod are clamped by the die, during the laying of the line, there is an outward pulling force at the other ends of the two copper stranded wires. Therefore, in order to prevent the two copper stranded wires from slipping during welding, the adjacent ends of the two copper stranded wires need to be in full contact. This process usually requires using a clamp to continuously clamp the two copper stranded wires to make the adjacent ends of the two copper stranded wires in contact, otherwise it will cause false soldering;

[0011] ② And because the die of the existing technology needs to be cleaned in time after welding is completed, but if the die is opened before the solder is completely solidified, it will cause welding failure. After waiting for the solder to completely solidify, the residues inside the die may gradually accumulate and solidify, resulting in a decrease in the accuracy of the die. Summary of the Invention

[0012] Aiming at the deficiencies of the prior art, the present invention provides an auxiliary device for copper stranded wire welding in substation construction to solve the above problems.

[0013] To achieve the above objectives, the present invention is realized through the following technical solutions.

[0014] An auxiliary device for copper stranded wire welding in substation construction, including a die, a copper stranded wire, a grounding rod, a clamp, and a propulsion component.

[0015] The mold includes a first half mold, a second half mold, a mold cover, and a portable anti-blocking structure. The fitting shapes of the first half mold and the second half mold are adapted to each other. The mold cover is rotatably connected to the first half mold in a positionable manner. The portable anti-blocking structure is located between the first half mold and the second half mold.

[0016] The number of copper stranded wires is two. The grounding rod is located below the copper stranded wires and is clamped between the first half mold and the second half mold.

[0017] The clamp is connected to the mold.

[0018] The propulsion components are respectively arranged on both sides of the first half mold and the second half mold, and their positions are adapted to the positions where the copper stranded wires are located. The propulsion components include fixing parts, movable parts, elastic parts, propulsion wheels, and propulsion drive components. The fixing parts are respectively arranged on the outer walls on both sides of the first half mold and the second half mold. The movable parts are rotatably connected to the fixing parts. The elastic parts are respectively connected to one side of the fixing parts and the movable parts. After being compressed by the elastic force of the elastic parts, the movable parts and the propulsion wheels are pressed towards the copper stranded wires. The propulsion wheels are rotatably connected to the movable parts, and an arc-shaped concave surface is arranged on the outer wall of the propulsion wheels. The arc-shaped concave surface matches the outer wall shape of the copper stranded wires. The propulsion drive components are fixed on the movable parts, and the output ends are connected to the propulsion wheels.

[0019] Preferably, welding cavities and powder cavities are respectively arranged at the corresponding positions of the first half mold and the second half mold. The welding cavities are located below the powder cavities.

[0020] Preferably, the welding cavity includes a horizontal hole, a diversion hole, and a vertical hole. The vertical hole is located at the lower end of the welding cavity. The horizontal holes are located on both sides of the welding cavity. The diversion hole is located at the upper end of the welding cavity and communicates with the powder cavity.

[0021] A fire guiding groove is arranged on one side of the powder cavity.

[0022] Preferably, the portable anti-blocking structure includes a movable sleeve, a handle, a communication hole, a rotating sleeve, and a limiting block. The movable sleeve is located in the powder cavity. The rotating sleeves are arranged on both sides of the movable sleeve. The handle is rotatably connected to the rotating sleeves. The limiting block is arranged on the handle. By arranging the movable sleeve inside the powder cavity, when the liquid welding powder is not completely solidified, the movable sleeve can be directly lifted to clean the inside of the movable sleeve in time, thereby preventing the welding powder from blocking the inside of the mold. Through this solution, most positions inside the mold do not need to be cleaned separately, avoiding the drawback of the prior art that the mold needs to wait for the welding powder liquid to completely solidify before cleaning, and improving the usability.

[0023] Preferably, an arc-shaped groove is arranged inside the rotating sleeve, and the arc-shaped groove is adapted to the shape of the limiting block, and the handle can be driven to rotate within the range of the arc-shaped groove inside the rotating sleeve.

[0024] The communication holes correspond to the ignition grooves in position.

[0025] Preferably, a fixing seat is provided on the first half mold, a hinge seat is provided on the mold cover, the fixing seat and the hinge seat are connected by a hinge column, and hinge sleeves are provided on both sides of the hinge column for limiting.

[0026] A positioning and limiting device is provided below the fixing seat.

[0027] Preferably, the positioning and limiting device includes a threaded column, a gear rod, a worm, a sliding sleeve, and a bearing. The threaded column is threadedly connected to the inside of the fixing seat. Concentric limiting holes are respectively formed in the hinge column and the hinge seat, and the diameter of the limiting hole is adapted to the outer diameter of the threaded column. The bearing is embedded and fixed on the outer wall of the first half mold. One end of the worm is rotatably connected to the bearing and meshes with the gear rod. One side of the gear rod is fixedly connected to the bottom of the threaded column. The sliding sleeve is arranged on the outer wall of the first half mold. A sliding rod is provided on the other side of the gear rod, and the sliding rod is slidably connected to the sliding sleeve in a limiting manner. By rotating the worm, the worm drives the gear rod to rotate. When the gear rod rotates, the threaded column also rotates. Thus, under the action of the rising thread, the threaded column moves upward until the top end of the threaded column moves into the limiting hole of the hinge seat, so that the hinge seat and the hinge column cannot rotate relative to each other. Therefore, when the welding powder burns to generate high temperature and gas, the mold cover cannot be pushed open, protecting the safety of the operator and allowing the welding powder to burn fully.

[0028] Preferably, the front end of the clamp is provided with a clamp head, and the clamp head is provided with a locking hole and a locking block. Slots and threaded holes are provided on the first half mold and the second half mold at positions corresponding to the clamp head. The locking hole is aligned with the slot, and the clamp head is fixed by passing the locking block through the threaded hole.

[0029] Preferably, the propulsion drive assembly includes a driven gear, a driving gear, and a driving member. The driven gear is connected to the propulsion wheel, the driving gear meshes with the driven gear, and the driving member is fixed on the movable member with its output end connected to the driving gear. By igniting the welding powder, the welding powder is melted into a liquid state and flows into the welding cavity through the diversion hole, thereby welding the two copper stranded wires and the grounding rod. After the welding powder liquid solidifies in the welding cavity, a solder joint is formed, thus achieving the purpose of welding. And during this process, the operator does not need to use a fixture to clamp the two copper stranded wires, but the propulsion assembly automatically keeps the adjacent ends of the two copper stranded wires in contact and can continuously push the two copper stranded wires towards each other, solving the problem that the fixture in the prior art cannot continuously push the two copper stranded wires, thereby making the welding of the two copper stranded wires more firm. By rotating the driving gear, the driven gear and the propulsion wheel are driven to rotate, so that the propulsion wheel drives the copper stranded wire and pushes the copper stranded wire into the interior of the welding cavity, enabling the adjacent ends of the two copper stranded wires to be in close contact, thereby improving the welding firmness and wire performance and enhancing the usability.

[0030] Preferably, the driving member is a servo motor.

[0031] Compared with the prior art, the present invention discloses a copper stranded wire welding auxiliary device for substation construction, including a mold, a copper stranded wire, a grounding rod, a clamp, and a propulsion assembly, which work together in combination.

[0032] ① By igniting the welding powder, the welding powder is melted into a liquid state and flows into the welding cavity through the diversion hole, thereby welding the two copper stranded wires and the grounding rod. After the welding powder liquid solidifies in the welding cavity, a solder joint is formed, thus achieving the purpose of welding. And during this process, the operator does not need to use a fixture to clamp the two copper stranded wires, but the propulsion assembly automatically keeps the adjacent ends of the two copper stranded wires in contact and can continuously push the two copper stranded wires towards each other, solving the problem that the fixture in the prior art cannot continuously push the two copper stranded wires, thereby making the welding of the two copper stranded wires more firm.

[0033] ② By arranging a movable sleeve inside the welding powder cavity, when the liquid welding powder has not completely solidified, the movable sleeve can be directly lifted to clean the inside of the movable sleeve in a timely manner, thereby preventing the welding powder from clogging the inside of the mold. With this solution, most positions inside the mold do not need to be cleaned separately, avoiding the drawback of the prior art that the mold can only be cleaned after the welding powder liquid has completely solidified, and enhancing the usability.

[0034] ③ By rotating the worm, the worm drives the gear rod to rotate. When the gear rod rotates, the threaded column also rotates. Under the action of the rising thread, the threaded column moves upward until the top of the threaded column moves into the limiting hole of the hinge seat, so that the hinge seat and the hinge column cannot rotate relative to each other. Thus, when the welding powder burns to generate high temperature and gas, the mold cover cannot be pushed open, protecting the safety of the operator and allowing the welding powder to burn fully.

[0035] ④ By rotating the driving gear, the driven gear and the propulsion wheel are driven to rotate, so that the propulsion wheel drives the copper stranded wire and pushes the copper stranded wire into the interior of the welding cavity, enabling the adjacent ends of the two copper stranded wires to be in close contact, thereby improving the welding firmness and wire performance and enhancing the usability. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is the overall three-dimensional view of the present invention;

[0037] Figure 2 is the overall lower three-dimensional view of the present invention;

[0038] Figure 3 is the exploded view of the mold and the portable anti-blocking structure of the present invention;

[0039] Figure 4 is the three-dimensional view of the portable anti-blocking structure of the present invention;

[0040] Figure 5 is the partial enlarged view at A of the portable anti-blocking structure of the present invention;

[0041] Figure 6 is the structural diagram of the portable anti-blocking structure and the first half mold of the present invention;

[0042] Figure 7 is the exploded view of the clamp and the mold of the present invention;

[0043] Figure 8 is the overall exploded view of the present invention;

[0044] Figure 9 is the state diagram of the present invention before welding;

[0045] Figure 10 is the state diagram of the present invention after welding;

[0046] Figure 11 is the welding structure diagram of the copper stranded wire and the grounding rod of the present invention;

[0047] Figure 12 is the closed state diagram of the first half mold and the mold cover of the present invention;

[0048] Figure 13 is the open state diagram of the first half mold and the mold cover of the present invention;

[0049] Figure 14 This is the separation state diagram of the first half mold and the mold cover of the present invention;

[0050] Figure 15 For the present invention Figure 14 Partial enlarged view of the positioning and limiting device at position B in the present invention;

[0051] Figure 16 This is a schematic diagram of the propulsion component and the copper stranded wire of the present invention;

[0052] Figure 17 This is a partial structural schematic diagram of the propulsion component of the present invention. Detailed implementation manners

[0053] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0054] A copper stranded wire welding auxiliary device for substation construction includes a mold 1, a copper stranded wire 2, a grounding rod 3, a clamp 4, and a propulsion component 5.

[0055] The mold 1 includes a first half mold 101, a second half mold 102, a mold cover 103, and a portable anti-blocking structure. The fitting shapes of the first half mold 101 and the second half mold 102 are adapted to each other. The mold cover 103 is rotatably connected to the first half mold 101 in a positionable manner. The portable anti-blocking structure is located between the first half mold 101 and the second half mold 102. Corresponding positions on the first half mold 101 and the second half mold 102 are respectively provided with a welding cavity 104 and a welding powder cavity 106. The welding cavity 104 is located below the welding powder cavity 106. The welding cavity 104 includes a horizontal hole 105, a diversion hole 107, and a vertical hole 108. The vertical hole 108 is located at the lower end of the welding cavity 104. The horizontal hole 105 is located on both sides of the welding cavity 104. The diversion hole 107 is located at the upper end of the welding cavity 104 and communicates with the welding powder cavity 106.

[0056] One side of the welding powder cavity 106 is provided with a fire guiding groove 109. The portable anti-blocking structure includes a movable sleeve 110, a handle 111, a communication hole 112, a rotating sleeve 113, and a limiting block 114. The movable sleeve 110 is located in the welding powder cavity 106. The rotating sleeve 113 is arranged on both sides of the movable sleeve 110. The handle 111 is rotatably connected to the rotating sleeve 113. The limiting block 114 is arranged on the handle 111. An arc-shaped groove 124 is provided in the rotating sleeve 113, and the arc-shaped groove 124 is adapted to the shape of the limiting block 114, and can drive the handle 111 to rotate within the range of the arc-shaped groove 124 in the rotating sleeve 113.

[0057] The communication holes 112 correspond to the ignition grooves 109 in position. A fixing seat 116 is provided on the first half mold 101, and a hinge seat 115 is provided on the mold cover 103. The fixing seat 116 and the hinge seat 115 are connected by a hinge column 117, and hinge sleeves 118 are provided on both sides of the hinge column 117 for limiting.

[0058] A positioning and limiting device is provided below the fixing seat 116. The positioning and limiting device includes a threaded column 119, a gear rod 120, a worm 121, a sliding sleeve 122, and a bearing 125. The threaded column 119 is in threaded connection with the interior of the fixing seat 116. Concentric limiting holes 123 are respectively formed on the hinge column 117 and the hinge seat 115. The aperture of the limiting hole 123 is adapted to the outer diameter of the threaded column 119. The bearing 125 is embedded and fixed on the outer wall of the first half mold 101. One end of the worm 121 is rotatably connected to the bearing 125 and meshes with the gear rod 120. One side of the gear rod 120 is fixedly connected to the bottom of the threaded column 119. The sliding sleeve 122 is arranged on the outer wall of the first half mold 101. A sliding rod 126 is provided on the other side of the gear rod 120, and the sliding rod 126 is in limiting sliding connection with the sliding sleeve 122.

[0059] As Figure 1 、 Figure 2 shown, this embodiment provides an auxiliary device for welding copper stranded wires in substation construction, which can weld two copper stranded wires 2 and a grounding rod 3 together, including:

[0060] There are two copper stranded wires 2. The grounding rod 3 is located below the copper stranded wires 2 and is clamped between the first half mold 101 and the second half mold 102. The mold 1 can clamp the two copper stranded wires 2 and the grounding rod 3 together, making the two copper stranded wires 2 and the grounding rod 3 form a T-shaped structure. Then, by pouring welding powder into the mold 1 and igniting the welding powder to melt it, the liquid welding powder can flow into the mold 1 to weld the two copper stranded wires 2 and the grounding rod 3 together, thus achieving the welding effect.

[0061] It should be noted that the welding powder that can weld the copper stranded wires 2 mainly includes the following types:

[0062] Ammonium chloride welding powder: The main components are ammonium chloride and potassium chloride. It can quickly remove the oxides on the copper surface, has a low melting point, and a fast melting speed. It can melt the welding part in a short time and is suitable for occasions with high requirements for welding speed.

[0063] Ammonium phosphate welding powder: The main components are ammonium phosphate and ammonium chloride. It can effectively remove the oxides on the copper surface and has certain fluidity and permeability, and is suitable for occasions with high welding requirements.

[0064] Boric acid welding powder: The main components are boric acid and ammonium chloride. It has good deoxidizing ability and welding performance, and has an ideal effect when used in welding copper stranded wires.

[0065] Ammonium chloride boric acid welding powder: The main components are ammonium chloride, boric acid and potassium chloride. It has good deoxidizing effect and fluidity, and is suitable for occasions with high requirements for welding speed and welding quality.

[0066] In addition, copper welding powder is also a kind of welding powder that can be used for welding copper stranded wires. It is a powdery material that improves weldability during the high-temperature welding process of metals and alloys. Its general component is borax, and it can also be called a flux. It can improve the fluidity of the material surface by dissolving, and cooperate with copper-based and nickel-based filler metals to braze various materials such as copper and copper alloys.

[0067] The clamp 4 is connected to the mold 1. The front end of the clamp 4 is provided with a clamp head 401. The clamp head 401 is provided with a locking hole 402 and a locking block 403. The first half mold 101 and the second half mold 102 are provided with a slot 404 and a threaded hole 405 at the position corresponding to the clamp head 401. The locking hole 402 is aligned with the slot 404, and the clamp head 401 is fixed by passing the locking block 403 through the threaded hole 405.

[0068] As Figure 3 shown, the first half mold 101 and the second half mold 102 adopt a separated structure to facilitate clamping two copper stranded wires 2 and a grounding rod 3 together during construction. The vertical hole 108 is located at the lower end of the welding cavity 104. The top of the vertical hole 108 is communicated with the inside of the welding cavity 104 for inserting the top end of the grounding rod 3 into the welding cavity 104. The inner diameter of the vertical hole 108 matches the outer diameter of the grounding rod 3, and the inner diameter of the horizontal hole 105 matches the outer diameter of the copper stranded wire 2. The inside of the welding powder cavity 106 is used to fill the welding powder. Ignition powder is laid on the top of the welding powder, and the welding powder is ignited by igniting the ignition powder, so that the welding powder melts into a liquid state and flows into the welding cavity 104 to achieve the welding purpose, as Figure 10 with Figure 11 the solder joint 201 in

[0069] It should be noted that the ignition powder can be one of the following:

[0070] Magnesium powder: Magnesium powder is a highly flammable metal powder with a low ignition temperature and a strong combustion reaction. It is often used as an ignition agent in fireworks, rocket fuels and certain chemical reactions.

[0071] Aluminum powder: Aluminum powder is also a flammable metal powder with a very strong combustion reaction. Aluminum powder is often used as an ignition agent in fireworks, rocket fuels and certain high-temperature reactions.

[0072] Pine torch powder: Pine torch powder is a powder made from pine resin and is flammable. It is often used as a fire-starting material in outdoor camping, barbecuing and other occasions.

[0073] Charcoal powder: Charcoal powder is the powder of wood after high-temperature treatment and has certain flammability. It is often used to make charcoal blocks or mixed with other flammable substances to improve the combustion effect.

[0074] Such as Figure 4 , Figure 5 As shown, during the welding process, impurities such as welding slag and oxides will remain inside the mold 1. If not cleaned in time, these residues may adhere to the inner wall of the mold, affecting the flow and distribution of the solder during the next welding, thus resulting in a decline in welding quality.

[0075] During the welding process, some corrosive substances may remain inside the mold, such as sulfides and gas residues. If these substances stay inside the mold 1 for a long time, they may react with the material of the mold 1, causing the mold 1 to corrode and rust, thus shortening the service life of the mold 1.

[0076] The residues inside the mold 1 may gradually accumulate and solidify, resulting in a decline in the precision of the mold 1. Regularly cleaning the mold 1 can maintain the precision and shape stability of the mold 1, ensuring the quality and consistency of the welded products.

[0077] For the above reasons, in order to clean the solder powder cavity 106 in time, the portable anti-blocking structure is located between the first half mold 101 and the second half mold 102. The content about filling solder powder inside the solder powder cavity 106 mentioned above is only a way for users to choose. That is to say, while setting the portable anti-blocking structure, the function of directly filling the solder powder cavity 106 in the traditional way is also retained for selection. The movable sleeve 110 is matched with the solder powder cavity 106, and the outer wall of the movable sleeve 110 can fit inside the solder powder cavity 106. For easy taking, a handle 111 is also provided. The handle 111 is connected to the movable sleeve 110 through a rotating sleeve 113. When carrying out welding work, the handle 111 is in a parallel state with the top surface of the movable sleeve 110. When it is necessary to take it, the handle 111 can rotate 90 degrees. The handle 111 is made of the same material as the mold, which is a high-temperature resistant material. The specific material can be ceramics.

[0078] The movable sleeve 110 is located inside the solder powder cavity 106. The rotating sleeve 113 is arranged on both sides of the movable sleeve 110. The handle 111 is rotatably connected to the rotating sleeve 113. The limiting block 114 is arranged on the handle 111.

[0079] An arc-shaped groove 124 is provided inside the rotating sleeve 113, and the arc-shaped groove 124 is adapted to the shape of the limiting block 114, and can drive the handle 111 to rotate within the range of the arc-shaped groove 124 inside the rotating sleeve 113.

[0080] The communication hole 112 corresponds to the position of the ignition groove 109. The opening radian of the arc-shaped groove 124 is 90 degrees, so that the handle 111 can only rotate 90 degrees, thus preventing the handle 111 from falling into the movable sleeve 110 and making it more convenient to take.

[0081] By providing the movable sleeve 110, when the welding process is not completely finished (that is, the liquid solder powder is not completely solidified), the movable sleeve 110 can be directly lifted to clean the inside of the movable sleeve 110 in time, thereby preventing the solder powder from blocking the inside of the mold.

[0082] When welding, close the mold cover 103, and then rotate the worm 121 to drive the gear rod 120 to rotate. When the gear rod 120 rotates, the threaded column 119 rotates at the same time. Under the action of the screw rising, the threaded column 119 moves upward until the top end of the threaded column 119 moves into the limiting holes 123 of the hinge column 117 and the hinge seat 115, so that the hinge column 117 and the hinge seat 115 cannot rotate relative to each other. Thus, when the solder powder burns to generate high temperature and gas, the mold cover 103 cannot be pushed open, protecting the safety of the operator and allowing the solder powder to burn fully.

[0083] It should be noted that there is at least one threaded column 119, preferably two. The two threaded columns 119 can fully fix the two concentric limiting holes 123 opened on the hinge column 117 and the hinge seat 115.

[0084] The propulsion assembly 5 is respectively arranged on both sides of the first half mold 101 and the second half mold 102, and its position is adapted to the position where the copper stranded wire 2 is located. The propulsion assembly 5 includes a fixing member 501, a movable member 502, an elastic member 503, a propulsion wheel 504, and a propulsion driving assembly. The fixing member 501 is respectively arranged on the outer walls on both sides of the first half mold 101 and the second half mold 102. The movable member 502 is rotatably connected to the fixing member 501. The elastic member 503 is respectively connected to one side of the fixing member 501 and the movable member 502. After being compressed by the elastic force of the elastic member 503, the movable member 502 and the propulsion wheel 504 are pressed towards the copper stranded wire 2. The propulsion wheel 504 is rotatably connected to the movable member 502, and an arc-shaped concave surface is arranged on the outer wall of the propulsion wheel 504. The arc-shaped concave surface matches the outer wall shape of the copper stranded wire 2. The propulsion driving assembly is fixed on the movable member 502, and its output end is connected to the propulsion wheel 504. The propulsion driving assembly includes a driven gear 505, a driving gear 506, and a driving member 507. The driven gear 505 is connected to the propulsion wheel 504. The driving gear 506 meshes with the driven gear 505. The driving member 507 is fixed on the movable member 502, and its output end is connected to the driving gear 506. The driving member 507 is a servo motor, and the size of the servo motor can be selected according to actual working requirements, or other types of driving members 507 can also be selected.

[0085] In order to make the adjacent ends of the two copper stranded wires 2 be in close contact during welding, the propulsion assembly 5 is provided. There are four groups of the propulsion assembly 5, and the four groups of propulsion assemblies 5 are respectively arranged on both sides of the first half mold 101 and the second half mold 102, and at the same time, on both sides of the transverse hole 105.

[0086] The elastic member 503 is respectively connected to one side of the fixing member 501 and the movable member 502. After being compressed by the elastic force of the elastic member 503, the movable member 502 and the propulsion wheel 504 are pressed towards the copper stranded wire 2. The elastic member 503 can be a spring or an elastic sheet. There are two installation methods for the elastic member 503 here. One is to utilize the compression elastic force, that is, the elastic member 503 is respectively connected to the outer sides of the fixing member 501 and the movable member 502, and is clamped by squeezing the elastic member 503. The other is that the elastic member 503 is respectively connected to the inner sides of the fixing member 501 and the movable member 502. At this time, it is the tensile elastic force of the elastic member 503, and is clamped by stretching the elastic member 503.

[0087] The driving part 507 drives the driving gear 506 to rotate, thereby driving the driven gear 505 and the propulsion wheel 504 to rotate, so that the propulsion wheel 504 drives the copper stranded wire 2 and continuously advances the copper stranded wire 2 into the inside of the welding cavity 104, so that the adjacent ends of the two copper stranded wires 2 can be in close contact, thereby improving the firmness of welding and the performance of the wire. In this embodiment, there are propulsion assemblies 5 on both sides of the horizontal hole 105, but the propulsion driving assembly is only arranged on one side. Experiments have proved that only arranging on one side can meet the propulsion requirements. If there are special requirements in actual work, the propulsion driving assembly can also be added on both sides of the horizontal hole 105.

[0088] The welding process is as follows:

[0089] S1. Clamp and install the first half mold 101 and the second half mold 102 on both sides of the two copper stranded wires 2 and the grounding rod 3 to be welded. Then pour the welding powder into the movable sleeve 110 in the welding powder cavity 106, and then cover it with a layer of ignition powder, and lead the ignition powder into the ignition groove 109;

[0090] S2. Rotate the propulsion wheel 504 to drive the copper stranded wire 2 to move into the mold, so that the adjacent ends of the two copper stranded wires 2 are in close contact;

[0091] S3. Ignite the ignition powder to ignite the ignition powder and the welding powder. The welding powder melts into a liquid state, and the liquid welding powder flows from the communication hole 112 to the contact position of the copper stranded wire 2 and the grounding rod 3, and then solidifies to form a welding point;

[0092] S4. Take out the movable sleeve 110, and clean the residue on the inner wall of the movable sleeve 110 in time. After the welding powder is completely solidified, separate the first half mold 101 and the second half mold 102, and clean the first half mold 101 and the second half mold 102.

[0093] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0094] It should be noted that the terms "first", "second", etc. in the description, claims and drawings of the present application are used to distinguish similar objects and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here.

[0095] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A copper strand welding auxiliary device for substation construction, characterized in that: It comprises a mold (1), a copper strand (2), a grounding rod (3), a clamp (4), and a propulsion assembly (5). The mold (1) comprises a first half mold (101), a second half mold (102), a mold cover (103), and a liftable anti-blocking structure; the first half mold (101) and the second half mold (102) are adapted to each other in shape; the mold cover (103) and the first half mold (101) are positionably rotatably connected; and the liftable anti-blocking structure is located between the first half mold (101) and the second half mold (102); The number of the copper stranded wires (2) is two, and the grounding rod (3) is located below the copper stranded wires (2) and is clamped between the first half mold (101) and the second half mold (102); The clamp (4) is connected to the mold (1); The propulsion assembly (5) is respectively arranged on both sides of the first half mold (101) and the second half mold (102), and the position is adapted to the position of the copper stranded wire (2). The propulsion assembly (5) comprises a fixed part (501), a movable part (502), an elastic part (503), a propulsion wheel (504), and a propulsion drive assembly. The fixed part (501) is respectively arranged on the outer walls of both sides of the first half mold (101) and the second half mold (102). The movable part (502) is rotatably connected to the fixed part (501). The elastic part (503) is The elastic member (503) is respectively connected to one side of the fixed member (501) and the movable member (502), and the movable member (502) and the propulsion wheel (504) are squeezed in the direction of the copper stranded wire (2) after being subjected to the compression force of the elastic member (503). The propulsion wheel (504) is rotatably connected to the movable member (502), and the outer wall of the propulsion wheel (504) is provided with an arc-shaped concave surface, and the arc-shaped concave surface matches the shape of the outer wall of the copper stranded wire (2). The propulsion drive assembly is fixed on the movable member (502), and the output end is connected to the propulsion wheel (504).

2. The copper strand welding auxiliary device for substation construction according to claim 1 is characterized in that: A welding chamber (104) and a solder powder chamber (106) are respectively provided at corresponding positions of the first half mold (101) and the second half mold (102), and the welding chamber (104) is located below the solder powder chamber (106).

3. The copper strand welding auxiliary device for substation construction according to claim 2 is characterized in that: The welding chamber (104) comprises a transverse hole (105), a guide hole (107), and a vertical hole (108); the vertical hole (108) is located at the lower end of the welding chamber (104); the transverse hole (105) is located at both sides of the welding chamber (104); the guide hole (107) is located at the upper end of the welding chamber (104) and is connected to the welding powder chamber (106); An ignition groove (109) is provided on one side of the solder powder chamber (106).

4. The copper stranded wire welding auxiliary device for substation construction according to claim 3 is characterized in that: The movable anti-blocking structure comprises a movable sleeve (110), a handle (111), a connecting hole (112), a rotating sleeve (113), and a limit block (114); the movable sleeve (110) is located in the solder powder chamber (106); the rotating sleeve (113) is arranged on both sides of the movable sleeve (110); the handle (111) is rotatably connected to the rotating sleeve (113); and the limit block (114) is arranged on the handle (111).

5. The copper strand welding auxiliary device for substation construction according to claim 4 is characterized in that: The rotating sleeve (113) is provided with an arc groove (124), and the arc groove (124) is adapted in shape to the limiting block (114), so that the handle (111) can be driven to rotate within the range of the arc groove (124) in the rotating sleeve (113). The communicating hole (112) corresponds to the position of the ignition groove (109).

6. The copper strand welding auxiliary device for substation construction according to claim 1 is characterized in that: The first half mold (101) is provided with a fixed seat (116), and the mold cover (103) is provided with a hinge seat (115). The fixed seat (116) and the hinge seat (115) are connected by a hinge column (117), and hinge sleeves (118) are provided on both sides of the hinge column (117) for limiting. A positioning and limiting device is provided below the fixing seat (116).

7. The copper strand welding auxiliary device for substation construction according to claim 6 is characterized in that: The positioning and limiting device comprises a threaded column (119), a gear rod (120), a worm (121), a sliding sleeve (122), and a bearing (125); the threaded column (119) is connected to the internal thread of the fixing seat (116); the hinged column (117) and the hinged seat (115) are respectively provided with concentric limiting holes (123); the diameter of the limiting hole (123) is adapted to the outer diameter of the threaded column (119); the bearing (125) is embedded and fixed in the first On the outer wall of the first half mold (101), one end of the worm (121) is rotatably connected to a bearing (125) and meshes with a gear rod (120); one side of the gear rod (120) is fixedly connected to the bottom of a threaded column (119); the sliding sleeve (122) is arranged on the outer wall of the first half mold (101); a sliding rod (126) is arranged on the other side of the gear rod (120); and the sliding rod (126) is slidably connected to the sliding sleeve (122) in a limited manner.

8. The copper strand welding auxiliary device for substation construction according to claim 1 is characterized in that: The front end of the clamp (4) is provided with a clamp head (401), and the clamp head (401) is provided with a locking hole (402) and a locking block (403); the first half mold (101) and the second half mold (102) are both provided with a slot (404) and a threaded hole (405) at positions corresponding to the clamp head (401); the locking hole (402) is aligned with the slot (404), and the clamp head (401) is fixed by passing the locking block (403) through the threaded hole (405).

9. The copper stranded wire welding auxiliary device for substation construction according to claim 1 is characterized in that: The propulsion drive assembly comprises a driven gear (505), a driving gear (506), and a driving member (507); the driven gear (505) is connected to the propulsion wheel (504); the driving gear (506) and the driven gear (505) are meshed with each other; the driving member (507) is fixed on the movable member (502), and the output end is connected to the driving gear (506).

10. The copper strand welding auxiliary device for substation construction according to claim 9 is characterized in that: The driving member (507) is a servo motor.

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