Intelligent post-weld workpiece cooling mechanism

Abstract

The utility model discloses an intelligent workpiece cooling mechanism after welding, including the cooling cover, the inside of cooling cover is provided with metal cooling conveyer belt, the top of cooling cover is provided with air -cooled cooler, the side surface fixed mounting of cooling cover has the cold water tank, the bottom surface fixed communication of cooling cover has the collecting groove, one side surface fixed communication of collecting groove has the communicating pipe, one end of communicating pipe penetrates cold water tank and extends to the inside of cold water tank. The utility model discloses through the surface pre -air -cooled digestion workpiece surface residual heat, reduce the temperature difference of workpiece inside and outside, prevent high -temperature workpiece direct water -cooling and appear the brittle fracture defect of quenching, guarantee the forming quality of welding workpiece, in addition through the cooperation of relying on pump body, filter assembly, atomizing spray head, adopt atomizing sprinkling to replace direct -injection water -cooling, can be attached workpiece weld and base body heat exchange, compared with pure air -cooling, the cooling efficiency is greatly improved, and the gradient cooling process is completed integrally, and the workpiece setting speed is accelerated.

Description

Technical Field

[0001] This application relates to the field of workpiece cooling technology, and in particular to a smart workpiece cooling mechanism after welding. Background Technology

[0002] After the automated welding process of metal workpieces is completed, a large amount of residual welding heat remains in the weld and the workpiece as a whole. The surface temperature of the workpiece after welding can reach 260℃-420℃. If it is directly cooled by natural air, the cooling rate is slow and the temperature of the weld is uneven, which can easily lead to problems such as stress cracking of the weld, welding deformation, and failure to meet the hardness of the weld. Therefore, a special cooling mechanism is needed to perform gradient cooling and shaping treatment on the workpiece after welding to ensure the dimensional accuracy of the welded product and the structural strength of the weld.

[0003] Existing conventional post-weld workpiece cooling equipment has a single cooling mode, using only air cooling or water cooling. Direct water cooling of high-temperature workpieces can easily cause them to crack due to chilling, while simple air cooling is inefficient and cannot be adapted to the batch cooling of workpieces on a production line, thus reducing the cooling speed of workpieces after intelligent welding. Therefore, to solve the above problems, we provide a post-weld workpiece cooling mechanism. Utility Model Content

[0004] The purpose of this invention is to provide an intelligent workpiece cooling mechanism after welding, so as to solve the problems mentioned in the background art.

[0005] The embodiments of this application adopt the following technical solutions: A smart workpiece cooling mechanism after welding includes a cooling hood, a metal cooling conveyor belt inside the cooling hood, an air-cooled cooler above the cooling hood, a cold water tank fixedly installed on one side of the cooling hood, a collection trough fixedly connected to the bottom surface of the cooling hood, a connecting pipe fixedly connected to one side of the collection trough, one end of the connecting pipe passing through the cold water tank and extending into the interior of the cold water tank, a spray cooling assembly fixedly installed on one side of the cooling hood, anti-slip placement areas provided on both sides of the metal cooling conveyor belt, multiple drainage holes opened on one side of each of the two sets of anti-slip placement areas, and a conveyor belt driver provided on one side of the cooling hood.

[0006] Preferably, the conveyor belt driver includes support side plates fixedly installed on both sides of the cooling shroud. The two sets of support side plates are rotatably mounted on one side close to each other, and a drive roller and a support roller are fixedly installed on one side of one support side plate. A variable frequency motor is fixedly installed at the input end of the intermittent drive, and the output end of the intermittent drive is fixedly installed at one end of the drive roller.

[0007] Preferably, the air-cooled cooler includes a U-shaped air duct, both ends of which pass through the cooling hood and extend above the metal cooling conveyor belt. Both ends of the U-shaped air duct are fixedly connected to an air outlet hood. The outer surfaces of both ends of the U-shaped air duct are fixedly connected to a regulating valve. The outer surface of the U-shaped air duct is fixedly connected to a fan hood. A cold air fan is fixedly installed on the inner wall of the fan hood. The two air outlet hoods are used for pre-air cooling of the workpiece and re-air cooling after spray cooling of the workpiece, respectively.

[0008] Preferably, the spray cooling assembly includes a pump body fixedly installed on one side of the cooling shroud. The input end of the pump body is movably connected to a filter, and the bottom end of the filter is movably connected to an extraction pipe. The bottom end of the extraction pipe penetrates the cooling shroud and extends into the interior of the cooling shroud. The output end of the pump body is fixedly connected to a discharge pipe. One end of the discharge pipe penetrates the cooling shroud and is fixedly connected to a U-shaped pipe. Both ends of the U-shaped pipe are fixedly connected to atomizing nozzles, and the atomizing nozzles are located above the metal cooling conveyor belt.

[0009] Preferably, an operating door is hinged to one side of the cooling cover via a pin, and a PLC controller is fixedly installed on one side of the cooling cover.

[0010] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects: 1. The intelligent workpiece cooling mechanism after welding, through intermittent transmission and variable frequency motor linkage, can drive the metal cooling conveyor belt to feed in a step-by-step intermittent manner, which is suitable for orderly diversion and cooling of batch workpieces on the production line. At the same time, with the segmented air volume adjustable air path structure, the pre-cooling and drying air volume can be controlled in stages. The surface pre-cooling first dissipates the residual heat on the workpiece surface, reduces the temperature difference between the inside and outside of the workpiece, and prevents the defects of rapid cooling and brittle cracking caused by direct water cooling of high-temperature workpieces, thus ensuring the forming quality of welded workpieces.

[0011] Second, the intelligent workpiece cooling mechanism after welding, by relying on the coordinated operation of the pump body, filter components and atomizing nozzles, adopts atomized spraying instead of direct water cooling, which can closely follow the workpiece weld and substrate for heat exchange. Compared with pure air cooling, it greatly improves the cooling efficiency and speeds up the workpiece shaping. In addition, the rear air drying path simultaneously completes water stain cleaning and secondary cooling, completing the gradient cooling process in one integrated manner, taking into account both cooling efficiency and workpiece yield. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 Here is a front view of the intelligent welding workpiece cooling mechanism of this utility model; Figure 2See: A frontal sectional view of the intelligent welding workpiece cooling mechanism of this utility model; Figure 3 Here is a side view of the structure of the intelligent welding cooling mechanism of this utility model. Figure 4 See: A side sectional view of the workpiece cooling mechanism after intelligent welding according to this utility model; Figure 5 See: A front-view sectional view of the fan cover in the intelligent workpiece cooling mechanism of this utility model after welding.

[0013] In the diagram: 1. Cooling shroud; 2. Air-cooled cooler; 21. Fan shroud; 22. Regulating valve; 23. U-shaped air duct; 24. Air outlet shroud; 25. Cooling fan; 3. Support side plate; 4. Metal cooling conveyor belt; 5. Intermittent drive; 6. Variable frequency motor; 7. Cold water tank; 8. Spray cooling assembly; 81. Filter; 82. Pump body; 83. Discharge pipe; 84. U-shaped pipe; 85. Atomizing nozzle; 86. Extraction pipe; 9. Anti-slip placement area; 10. Collection tank; 11. Connecting pipe; 12. Drain hole; 13. Drive roller; 14. Support roller; 15. PLC controller; 16. Operating door. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0015] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0016] Please see Figures 1-5 This utility model provides a technical solution for an intelligent workpiece cooling mechanism after welding: A smart workpiece cooling mechanism after welding includes a cooling cover 1, which is integrally welded from high-strength carbon steel, possessing the characteristics of pressure resistance, rust prevention, and non-deformation resistance. Its overall structure has strong stability and can be adapted to industrial assembly line operation environments for extended periods. One side of the cooling cover 1 is hinged with an operating door 16 via a pin, facilitating the inspection and maintenance of internal components. A PLC controller 15 is fixedly installed on one side of the cooling cover 1. This electrical component is a programmable logic controller (PLC) that enables sequential and automated linkage control of various mechanisms within the equipment, precisely regulating the start-up, shutdown, and operating rhythm of the equipment. A metal cooling conveyor belt 4 is installed inside the cooling cover 1. An air-cooled cooler 2 is installed above the cooling cover 1. A cold water tank 7 is fixedly installed on one side of the cooling cover 1. A collection trough 10 is fixedly connected to the bottom surface of the cooling cover 1. A connecting pipe 11 is fixedly connected to one side of the collection trough 10, with one end of the connecting pipe 11 penetrating the cold water tank 7 and extending into its interior. One side of the cooling cover 1... The cooling system is equipped with a fixed spray cooling assembly 8. Both sides of the metal cooling conveyor belt 4 are provided with anti-slip placement areas 9. Each side of the two anti-slip placement areas 9 is provided with multiple drainage holes 12. A conveyor belt driver is provided on one side of the cooling cover 1. The overall frame structure realizes the integrated layout of air cooling, water cooling, and water circulation and recovery structure. The layout is compact and reasonable. The operation of each module is uniformly coordinated by the PLC controller 15, which abandons the disadvantages of the traditional split cooling equipment with its scattered structure and independent operation. The drainage holes 12, in conjunction with the collection tank 10 and the connecting pipe 11, can quickly collect the spray wastewater, providing basic structural support for the closed-loop circulation of cooling water, effectively improving the overall integration and operation continuity of the equipment. This mechanism is suitable for various intelligent welding and forming of conventional metal workpieces, especially suitable for small and medium-sized welded components such as stainless steel, carbon steel, and aluminum alloy that are prone to rapid cooling and cracking. It can meet the batch standardized cooling operation of the production line and is suitable for the gradient cooling processing needs of flat structure workpieces of various specifications.

[0017] Furthermore, the conveyor belt driver includes support side plates 3 fixedly installed on both sides of the cooling cover 1. The support side plates 3 are made of thickened steel plate, with excellent load-bearing capacity, and can provide stable support for the transmission structure. The drive roller 13 and the support roller 14 are rotatably installed on the side of the two sets of support side plates 3 that are close to each other. The roller surface is treated with wear-resistant and rust-proof treatment, which ensures smooth transmission and long service life. An intermittent actuator 5 is fixedly installed on one side of one support side plate 3. The intermittent actuator 5 is an intermittent motion mechanism of an external meshing grooved wheel, mainly composed of a driving dial, a cylindrical pin, a driven grooved wheel, and a positioning locking arc. It relies on the input of continuous rotational power from the variable frequency motor 6. The driving dial rotates synchronously with the motor. The pin periodically embeds into the radial groove of the driven grooved wheel, driving the grooved wheel to rotate in one direction step by step. After the pin disengages from the groove, the locking arc positions and locks the grooved wheel, achieving precise stopping, thereby transferring the continuous return transport. The continuous motion is converted into intermittent stepping motion, which is suitable for the time-sharing operation requirements of the cooling station. The input end of the intermittent drive 5 is fixedly installed with a variable frequency motor 6. The variable frequency motor 6 can adjust the output speed through frequency conversion to adapt to the cooling time requirements of different workpieces. It has high speed adjustment accuracy and low operating energy consumption. The output end of the intermittent drive 5 is fixedly installed with one end of the drive roller 13. This drive structure relies on the linkage between the variable frequency motor 6 and the intermittent drive 5 to convert the continuous rotation of the motor into the intermittent rotation of the drive roller 13. With the assistance of the support roller 14, the metal cooling conveyor belt 4 is driven to achieve stepping intermittent conveying. It can accurately control the dwell time of the workpiece at each station of pre-cooling, water cooling and air drying, and ensure that the cooling process of each batch of workpieces is complete and in place. It completely solves the problems of insufficient cooling and uneven cooling rhythm of batch workpieces in traditional continuous conveying equipment, and is perfectly adapted to batch processing operations on the production line.

[0018] Furthermore, the air-cooled cooler 2 includes a U-shaped air duct 23, which is made of galvanized steel pipe, ensuring smooth ventilation and resistance to rust and scale buildup, thus guaranteeing stable airflow. Both ends of the U-shaped air duct 23 penetrate the cooling shroud 1 and extend above the metal cooling conveyor belt 4. Both ends of the U-shaped air duct 23 are fixedly connected to an air outlet shroud 24, which adopts an air-concentrating structure to gather airflow and expand the air supply coverage. The outer surfaces of both ends of the U-shaped air duct 23 are fixedly connected to regulating valves 22, which are manual throttling adjustment structures that can precisely control the airflow at both ends. The outer surface of the U-shaped air duct 23 is fixedly connected to the fan cover 21. The inner wall of the fan cover 21 is fixedly installed with a cold air fan 25. The cold air fan 25 is a high-pressure centrifugal fan, which delivers air evenly and with stable air pressure. The two air outlet covers 24 are used for pre-cooling of the workpiece and secondary cooling of the workpiece after spray cooling, respectively. This segmented air cooling structure uses a dual-station independent air adjustment design to pre-cool the high-temperature welded workpiece using the front air outlet cover 24, effectively dissipating the residual heat on the surface of the workpiece and reducing the temperature difference between the inside and outside of the workpiece. This avoids the defects of workpiece brittle cracking caused by traditional direct injection water cooling from the root. The rear air outlet cover 24 can dry the water stains on the surface of the workpiece and complete the secondary cooling. The air volume can be adjusted by the regulating valve 22 to adapt to different specifications of workpieces as needed. Compared with the traditional single air cooling structure, the cooling layering, adaptability and cooling uniformity are greatly improved.

[0019] Furthermore, the spray cooling assembly 8 includes a pump body 82 fixedly installed on one side of the cooling cover 1. The pump body 82 is a high-pressure booster water pump with strong pumping and pressurization stability, ensuring sufficient spray water pressure. A filter 81 is movably connected to the input end of the pump body 82. The filter 81 has a built-in high-density filter screen, which can effectively intercept water impurities, rust, and welding slag. An extraction pipe 86 is movably connected to the bottom end of the filter 81. The bottom end of the extraction pipe 86 penetrates the cooling cover 1 and extends into the interior of the cooling cover 1. The output end of the pump body 82 is fixedly connected to the discharge pipe 83. One end of the discharge pipe 83 passes through the cooling cover 1 and is fixedly connected to the U-shaped pipe 84. Both ends of the U-shaped pipe 84 are fixedly connected to the atomizing nozzle 85. The atomizing nozzle 85 adopts a microporous atomizing structure, which can convert water into fine water mist. The atomizing nozzle 85 is located above the metal cooling conveyor belt 4. This spray cooling assembly 8, through the multi-stage cooperation of the pump body 82, filter 81, and atomizing nozzle 85, can realize the atomized spraying operation after the cooling water is filtered. The fine water mist can completely wrap the workpiece and weld seam. The heat exchange area is larger and the cooling efficiency is far better than the traditional direct spray water cooling, which can quickly complete the workpiece shaping and cooling.

[0020] Working principle: First, the high-temperature workpiece after welding is placed on the surface of the anti-slip placement area 9 at the metal cooling conveyor belt 4. The anti-slip placement area 9 limits the slippage. Then, the variable frequency motor 6 is started by the PLC controller 15. The variable frequency motor 6 drives the intermittent transmission device 5 to operate. The intermittent transmission device 5 drives the drive roller 13 to rotate intermittently in one direction. With the support roller 14 supporting the transmission, the metal cooling conveyor belt 4 moves step by step. The workpiece enters the pre-cooling, water cooling and air drying stations in sequence. The workpiece moves to the front cooling station. The cold air fan 25 generates airflow and flows into the U-shaped air duct 23. The operator rotates the front regulating valve 22 to adjust the airflow volume. The airflow is blown out through the front air outlet hood 24 to uniformly pre-cool the surface of the high-temperature workpiece, dissipate the high-temperature residual heat on the surface of the workpiece, reduce the temperature difference between the inside and outside of the workpiece, and avoid cracking caused by direct water cooling. After pre-cooling, the workpiece is transferred to the spraying station. The PLC controller 15 starts the pump 82, which draws cooling water from the cold water tank 7 through the extraction pipe 86. After the water passes through the filter 81 to remove impurities, it is transported to the U-shaped pipe 84 through the discharge pipe 83. Finally, it is atomized and sprayed onto the surface of the workpiece by the atomizing nozzles 85 on both sides, which removes the residual heat from the weld and the inside of the workpiece from all directions, achieving efficient cooling and shaping. After water cooling, the workpiece is transferred to the rear station. The rear regulating valve 22 is adjusted to match the air drying volume, and the rear air outlet hood 24 blows out airflow to dry the cooling water adhering to the surface of the workpiece. At the same time, it provides secondary uniform cooling, and the workpiece completes all gradient cooling. The spraying wastewater quickly leaks down through the water leakage holes 12 on the surface of the anti-slip placement area 9 and falls into the bottom of the cooling hood 1 for collection. The wastewater at the bottom of the cooling hood 1 flows into the collection tank 10 and is returned to the cold water tank 7 for sedimentation and storage through the connecting pipe 11, realizing closed-loop recycling of cooling water for repeated extraction and spraying by the subsequent pump 82, saving water resources.

[0021] It should also be noted that, in terms of circuit structure, the drive and control circuits of this utility model are common and mature technologies. Those skilled in the art can select appropriate circuit components to build the circuit according to the power requirements and control requirements of the equipment. For the power supply components, common general power supply equipment on the market and electrical components of this application can be used. These are all common electrical equipment in the prior art. The control circuit can be implemented by those skilled in the art through simple programming. This application will not elaborate further.

[0022] It should be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0023] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A workpiece cooling mechanism after intelligent welding, comprising a cooling shroud (1), wherein a metal cooling conveyor belt (4) is disposed inside the cooling shroud (1), characterized in that: A wind-cooled cooler (2) is provided above the cooling cover (1). A cold water tank (7) is fixedly installed on one side of the cooling cover (1). A collection tank (10) is fixedly connected to the bottom surface of the cooling cover (1). A connecting pipe (11) is fixedly connected to one side of the collection tank (10). One end of the connecting pipe (11) passes through the cold water tank (7) and extends into the interior of the cold water tank (7). A spray cooling assembly (8) is fixedly installed on one side of the cooling cover (1). Anti-slip placement areas (9) are provided on both sides of the metal cooling conveyor belt (4). Multiple drainage holes (12) are opened on one side of each of the two sets of anti-slip placement areas (9). A conveyor belt driver is provided on one side of the cooling cover (1).

2. The intelligent workpiece cooling mechanism according to claim 1, characterized in that: The conveyor belt driver includes a support side plate (3) fixedly installed on both sides of a cooling cover (1). The two sets of support side plates (3) are rotatably mounted on one side close to each other, with a drive roller (13) and a support roller (14). An intermittent drive (5) is fixedly installed on one side of one support side plate (3). A variable frequency motor (6) is fixedly installed at the input end of the intermittent drive (5). The output end of the intermittent drive (5) is fixedly installed at one end of the drive roller (13).

3. The intelligent workpiece cooling mechanism according to claim 1, characterized in that: The air-cooled cooler (2) includes a U-shaped air duct (23). Both ends of the U-shaped air duct (23) pass through the cooling cover (1) and extend to the top of the metal cooling conveyor belt (4). Both ends of the U-shaped air duct (23) are fixedly connected to an air outlet cover (24). Both outer surfaces of the U-shaped air duct (23) are fixedly connected to a regulating valve (22). The outer surface of the U-shaped air duct (23) is fixedly connected to a fan cover (21). A cold air fan (25) is fixedly installed on the inner wall of the fan cover (21). The two air outlet covers (24) are used for pre-air cooling of the workpiece and re-air cooling after spray cooling of the workpiece, respectively.

4. The intelligent workpiece cooling mechanism after welding according to claim 1, characterized in that: The spray cooling assembly (8) includes a pump body (82) fixedly installed on one side of the cooling cover (1). The input end of the pump body (82) is movably connected to a filter (81). The bottom end of the filter (81) is movably connected to an extraction pipe (86). The bottom end of the extraction pipe (86) penetrates the cooling cover (1) and extends into the interior of the cooling cover (1).

5. The intelligent workpiece cooling mechanism according to claim 4, characterized in that: The pump body (82) has a fixed connection to the output end of a discharge pipe (83). One end of the discharge pipe (83) passes through the cooling cover (1) and is fixedly connected to a U-shaped pipe (84). Both ends of the U-shaped pipe (84) are fixedly connected to atomizing nozzles (85), and the atomizing nozzles (85) are located above the metal cooling conveyor belt (4).

6. The intelligent workpiece cooling mechanism according to claim 1, characterized in that: An operating door (16) is hinged to one side of the cooling cover (1) via a pin, and a PLC controller (15) is fixedly installed on one side of the cooling cover (1).

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