Efficient cathode plate conductive head rotating friction welding device

Abstract

The utility model belongs to welding equipment technical field discloses a kind of high-efficiency cathode plate electric head rotary friction welding device, including upper clamping device and lower clamping device, upper clamping device and lower clamping device one end are respectively connected with the upper protective cover and lower protective cover of compatible, and suction device is connected on upper clamping device, the scheme is stably fixed to cathode plate by upper and lower clamping device, and high-temperature resistant upper and lower protective cover is arranged in welding area, in combination transparent anti-fog upper cover, annular flow guide groove, inclined discharge chute, built-in baffle and elastic heat-resistant filling block and other structures, realize that smoke is evenly extracted in welding process, fly chip is concentrated collection and escape inhibition, while keeping clear observation to welding end surface, so that operator can real-time monitoring welding state, to improve the safety, environmental protection and processing consistency of welding operation, ensure that the friction welding quality of cathode plate and electric head is stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular to a high-efficiency cathode plate conductive head rotating friction welding device. Background Technology

[0002] In metallurgical equipment production lines such as electrolytic aluminum, electrolytic copper, and electrolytic zinc, the cathode plate is usually composed of a long strip of steel plate, and the conductive head is mostly cylindrical. Before assembly, the two need to be welded to form an integral structure to ensure stable current conduction and sufficient mechanical strength. At present, common connection methods include arc welding, fusion welding, and friction welding. Among them, rotary friction welding is widely used in the processing of large cathode plates because it does not require external filler, has high interface bonding strength, and a small heat-affected zone. Rotary friction welding is usually driven by a rotating spindle to rotate the conductive head at high speed. The conductive head is pressed against the end face of the cathode plate by axial advancement, thereby generating frictional heat at the interface and completing solid bonding.

[0003] However, in traditional rotary friction welding, the high-speed friction at the welding interface generates a large amount of high-temperature fumes, hot chips, and spatter particles. These substances easily diffuse around the device, affecting not only the operator's ability to observe the welding interface but also causing contamination on the equipment surface. Furthermore, the unorganized diffusion of fumes can clog sensor surfaces or adhere to transparent observation windows, affecting welding quality detection and process control. On the other hand, hot chips may be sprayed along the external area of ​​the device under airflow disturbance, posing burns and safety hazards. Existing protective measures mostly use external protective baffles, open plexiglass observation covers, or simple air intakes, but in the high-speed friction welding environment, it is difficult to simultaneously achieve fume control, chip suppression, and continuity of the observation line of sight.

[0004] Therefore, in order to adapt to the high temperature, high smoke volume and high slag characteristics generated by friction welding of cathode plate and conductive head, it is necessary to optimize the protective structure of the welding area to form a stable and controlled closed space without affecting the axial pressing movement, improve the efficiency of smoke collection, suppress the escape of hot slag, and allow operators to maintain real-time visual monitoring of the welding interface, thereby improving the stability, safety and processing consistency of welding operations. Utility Model Content

[0005] This invention aims to provide a high-efficiency cathode plate conductive head rotating friction welding device to solve the problems mentioned in the background art. This solution uses upper and lower clamping devices to stably fix the cathode plate and sets high-temperature resistant upper and lower protective covers in the welding area. Combined with a transparent anti-fog upper cover, annular guide groove, inclined discharge groove, built-in baffle and elastic heat-resistant filling block, etc., it realizes uniform exhaust of fumes, centralized collection and suppression of flying chips during the welding process, while maintaining clear observation of the welding end face, enabling operators to monitor the welding status in real time, thereby improving the safety, environmental protection and processing consistency of welding operations, and ensuring stable and reliable friction welding quality between the cathode plate and the conductive head.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A high-efficiency cathode plate conductive head rotary friction welding device includes an upper clamping device and a lower clamping device. One end of the upper clamping device and the lower clamping device are respectively connected to a matching upper protective cover and a lower protective cover. An air extraction device is connected to the upper clamping device. The output end of the air extraction device is connected to a pipe. The end of the pipe away from the air extraction device is connected to the inner cavity of the upper protective cover. A discharge groove is opened at the bottom of the lower protective cover. Both the upper protective cover and the lower protective cover are made of high-temperature resistant material.

[0007] Preferably, the upper protective cover is made of transparent material, and the inner surface of the upper protective cover is coated with an anti-fog coating.

[0008] Preferably, the discharge chute is inclined along the axial direction of the lower protective cover, and the discharge chute extends from the bottom of the inner wall of the lower protective cover to the lower side of the lower protective cover.

[0009] Preferably, the inner walls of both the upper and lower protective covers are provided with multiple guide grooves, which are arranged in a ring along the inner walls of the upper and lower protective covers.

[0010] Preferably, when the upper and lower protective covers are closed, the guide channels in the upper protective cover and the guide channels in the lower protective cover are connected in a one-to-one correspondence.

[0011] Preferably, the inner edges of the upper protective cover and the lower protective cover away from the upper clamping device and the lower clamping device are integrally formed with baffles, and the pair of baffles are respectively inclined from the inner walls of the upper protective cover and the lower protective cover toward the middle of their inner cavities.

[0012] Preferably, the upper protective cover and the lower protective cover are both covered with filler blocks at their edges near each other, and the filler blocks are made of elastic heat-resistant material.

[0013] The beneficial effects of this technical solution compared to existing technologies are as follows: This solution uses upper and lower clamping devices to stably fix the cathode plate and sets up high-temperature resistant upper and lower protective covers in the welding area. Combined with a transparent anti-fog cover, annular guide groove, inclined discharge groove, built-in baffle and elastic heat-resistant filler block, it realizes uniform exhaust of fumes, centralized collection and suppression of flying debris during the welding process, while maintaining clear observation of the welding end face. This allows operators to monitor the welding status in real time, thereby improving the safety, environmental protection and processing consistency of the welding operation, and ensuring stable and reliable friction welding quality between the cathode plate and the conductive head. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of this utility model; Figure 2 A cross-sectional view of the upper and lower protective covers provided for this utility model; Figure 3 Provided by this utility model Figure 2 Schematic diagram of the structure at point A in the middle.

[0015] Reference numerals: 1. Upper clamping device; 2. Lower clamping device; 3. Upper protective cover; 4. Lower protective cover; 5. Air extraction device; 6. Pipeline; 7. Baffle; 8. Discharge chute; 9. Guide chute. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments: like Figure 1-3 As shown, a high-efficiency cathode plate conductive head rotating friction welding device includes an upper clamping device 1 and a lower clamping device 2. One end of the upper clamping device 1 and the lower clamping device 2 is respectively connected to a matching upper protective cover 3 and a lower protective cover 4. An air extraction device 5 is connected to the upper clamping device 1. The output end of the air extraction device 5 is connected to a pipe 6. The end of the pipe 6 away from the air extraction device 5 is connected to the inner cavity of the upper protective cover 3. A discharge groove 8 is opened at the bottom of the lower protective cover 4. Both the upper protective cover 3 and the lower protective cover 4 are made of high-temperature resistant materials.

[0017] In this embodiment, the upper clamping device 1 and the lower clamping device 2 are used to fix and clamp the cathode plate to be welded. They are positioned by a hydraulic cylinder and allow axial advancement so that a constant pressure is applied when the conductive head comes into contact with the end face of the cathode plate.

[0018] The upper protective cover 3 and the lower protective cover 4 are respectively fitted on the outside of the clamping device. They are made of heat-resistant engineering plastic, which can withstand the heat generated during friction welding. After the two protective covers are aligned with the clamping device, they form a closed welding space and cover the welding end face without affecting the axial extrusion movement.

[0019] The exhaust device 5 is an existing technology device, including a fan and a negative pressure regulation system. Its working principle is to extract the welding fumes generated inside the protective cover 3 through the pipe 6, so as to maintain air circulation in the welding area and reduce the accumulation of fumes.

[0020] The bottom of the lower protective cover 4 has a discharge trough 8 for collecting and discharging metal shavings and tiny debris generated during the welding process. The discharge trough 8 is integrally formed with the lower protective cover 4 and extends axially to the lower side of the protective cover to ensure that waste is discharged in a concentrated manner.

[0021] The upper protective cover 3 is made of transparent material, and the inner surface of the upper protective cover 3 is coated with an anti-fog coating.

[0022] In this embodiment, the upper protective cover 3 is made of transparent heat-resistant polycarbonate material, which can withstand temperatures up to 250°C, ensuring that it will not deform under the high temperature environment of friction welding. The inner surface is coated with an anti-fog coating, using chemical plating or coating with transparent paint, so that the operator can clearly observe the welding interface and the state of the fumes during the welding process, making it easier to judge the welding pressure and the formation of friction heat.

[0023] The discharge chute 8 is inclined along the axial direction of the lower protective cover 4, and the discharge chute 8 extends from the bottom of the inner wall of the lower protective cover 4 to the lower side of the lower protective cover 4.

[0024] In this embodiment, the discharge trough 8 is arranged in an inclined state, so that the hot chips generated during the welding process can slide smoothly down the discharge trough and be discharged under the action of gravity, avoiding the accumulation of metal chips in the clamping device and the inner cavity of the protective cover, and reducing the risk of flying chips escaping under air disturbance. The discharge trough extends from the bottom of the inner wall of the lower protective cover 4 to the lower side, forming a complete waste chip discharge channel, which is convenient for centralized collection and subsequent cleaning.

[0025] Multiple guide grooves 9 are provided on the inner walls of both the upper protective cover 3 and the lower protective cover 4. The guide grooves 9 are arranged in a ring along the inner walls of the upper protective cover 3 and the lower protective cover 4.

[0026] In this embodiment, the guide groove 9 forms an annular groove along the inner wall of the protective cover, with uniform circumferential spacing, which facilitates the formation of a stable airflow channel. During the welding process, when the upper exhaust device 5 extracts air, the airflow guides the flue gas to flow evenly to the pipe 6 along the guide groove 9, thereby improving the flue gas extraction efficiency and keeping the welding interface clean. The guide grooves of the upper and lower protective covers are aligned in the closed state to ensure that the airflow flows smoothly from the upper protective cover into the lower guide groove and is discharged uniformly.

[0027] When the upper protective cover 3 and the lower protective cover 4 are closed, the guide groove 9 in the upper protective cover 3 and the guide groove 9 in the lower protective cover 4 are connected in a one-to-one correspondence.

[0028] In this embodiment, the guide groove 9 forms a continuous channel after the upper and lower protective covers are closed. Each pair of guide grooves is connected to each other, so that the welding fumes are evenly discharged along the preset route. This structure can avoid local fumes accumulation, improve the visibility of the welding area and the safety of operation, and at the same time ensure that the negative pressure of the exhaust is evenly distributed, avoiding the splashing of flying chips caused by airflow disturbance.

[0029] The inner edges of the upper protective cover 3 and the lower protective cover 4 away from the upper clamping device 1 and the lower clamping device 2 are integrally formed with baffles 7. A pair of baffles 7 are respectively inclined from the inner wall of the upper protective cover 3 and the lower protective cover 4 toward the middle of their inner cavity.

[0030] In this embodiment, the baffle 7 is inclined from the inner wall of the protective cover toward the center of the protective cover to form a barrier, preventing the hot chips and spatter particles generated by friction welding from being ejected along the inner wall under the action of airflow. The baffle 7 works in conjunction with the discharge trough 8 and the guide trough 9 to concentrate the flying chips to the discharge trough 8, while not affecting the air extraction flow.

[0031] The upper protective cover 3 and the lower protective cover 4 are both covered with filler blocks at their edges near each other. The filler blocks are made of elastic heat-resistant material.

[0032] In this embodiment, a filler block is provided at the edge of the upper and lower protective covers near the welding area. The filler block is made of elastic heat-resistant material and can make slight contact with the clamping device or cathode plate surface when the protective cover is closed to achieve a micro-seal, preventing fumes and dust from leaking from the gaps, while not hindering the clamping device from applying axial pressure.

[0033] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A high-efficiency cathode plate conductive head rotating friction welding device, characterized in that: It includes an upper clamping device (1) and a lower clamping device (2). One end of the upper clamping device (1) and the lower clamping device (2) are respectively connected to a matching upper protective cover (3) and a lower protective cover (4). An air extraction device (5) is connected to the upper clamping device (1). The output end of the air extraction device (5) is connected to a pipe (6). The end of the pipe (6) away from the air extraction device (5) is connected to the inner cavity of the upper protective cover (3). A discharge groove (8) is opened at the bottom of the lower protective cover (4). Both the upper protective cover (3) and the lower protective cover (4) are made of high temperature resistant material.

2. The high-efficiency cathode plate conductive head rotating friction welding device as described in claim 1, characterized in that: The upper protective cover (3) is made of transparent material, and the inner surface of the upper protective cover (3) is coated with an anti-fog coating.

3. The high-efficiency cathode plate conductive head rotating friction welding device as described in claim 1, characterized in that: The discharge trough (8) is inclined along the axial direction of the lower protective cover (4), and the discharge trough (8) extends from the bottom of the inner wall of the lower protective cover (4) to the lower side of the lower protective cover (4).

4. The high-efficiency cathode plate conductive head rotating friction welding device as described in claim 1, characterized in that: Multiple guide grooves (9) are provided on the inner walls of the upper protective cover (3) and the lower protective cover (4), and the guide grooves (9) are arranged in a ring along the inner walls of the upper protective cover (3) and the lower protective cover (4).

5. The high-efficiency cathode plate conductive head rotating friction welding device as described in claim 4, characterized in that: When the upper protective cover (3) and the lower protective cover (4) are closed, the guide groove (9) in the upper protective cover (3) and the guide groove (9) in the lower protective cover (4) are connected in a one-to-one correspondence.

6. The high-efficiency cathode plate conductive head rotating friction welding device as described in claim 1, characterized in that: The upper protective cover (3) and the lower protective cover (4) are both integrally formed with baffles (7) on the inner edge of the end away from the upper clamping device (1) and the lower clamping device (2). A pair of baffles (7) are respectively inclined from the inner wall of the upper protective cover (3) and the lower protective cover (4) toward the middle of their inner cavity.

7. The high-efficiency cathode plate conductive head rotating friction welding device as described in claim 1, characterized in that: The upper protective cover (3) and the lower protective cover (4) are both covered with filling blocks at their edges close to each other. The filling blocks are made of elastic heat-resistant material.

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