Plate heat exchanger plate welding device with positioning function

Abstract

The utility model provides a plate heat exchanger plate welding device with a positioning function, which belongs to the technical field of welding devices and comprises a main body plate, a plate body and a welding portion, and a workbench is slidably connected with the main body plate through a moving component. A supporting plate is arranged on the workbench, a baffle is arranged on the workbench and is in an L shape, a sheet bar body is placed and makes contact with the baffle, a plurality of sets of pressure sensors are arranged on the baffle, and a plurality of sets of first electromagnets are arranged on the supporting plate. The protective cover and the main body plate are connected to form a welding cavity, the welding part is located in the welding cavity, through grooves are further formed in the two sides of the protective cover, a conveying assembly is arranged on the workbench, and a controller is installed on the protective cover. According to the device, the L-shaped baffle is arranged on the workbench, and the sheet bar bodies are matched with one another, so that an effective positioning function is achieved, and the sheet bar bodies can be prevented from sliding in the horizontal direction; and meanwhile, through cooperation of the multiple sets of pressure sensors, the position of the sheet bar body can be effectively sensed, and deviation of the position of the sheet bar body is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding devices, and more specifically, particularly relates to a plate welding device for a plate type heat exchanger with a positioning function. Background Art

[0002] Plate heat exchanger plates are key heat exchange components in heat exchangers, which can effectively separate hot and cold fluids and ensure that they flow in their respective flow channels, laying the foundation for efficient heat exchange. However, in the production process of plate heat exchanger plates, welding devices are often required to connect pre-processed plates, effectively ensuring the stability between the plates, thereby ensuring the quality of the finished plate heat exchanger plates. However, traditional welding devices do not have an effective positioning function. When the plates are placed on the welding device, it is easy to cause deviations in the placement of the plates, resulting in uneven welds between the plates, uneven width, undercuts, and other problems, and also reducing the sealing between the plates, thereby affecting the overall performance and quality of the plate heat exchanger. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a plate heat exchanger plate welding device with a positioning function to solve the technical problem in the prior art that traditional welding devices easily lead to deviations in the placement of the plates, resulting in uneven welds between the plates and reduced sealing between the plates.

[0004] The purpose and effect of the plate welding device of a plate heat exchanger with positioning function of the utility model are achieved by the following specific technical means:

[0005] A plate welding device for a plate type heat exchanger with a positioning function comprises a main plate, a plate body and a welding portion, a plurality of workbenches are arranged above the main plate, and the workbenches are slidably connected to the main plate through a moving component; a detachable support plate is arranged on the workbench, baffles are arranged on adjacent two sides of the workbench, the baffles are arranged in an L shape, the plate body is placed on the support plate and contacts the baffles, a plurality of pressure sensors are arranged on the baffles, and a plurality of first electromagnets are arranged on the support plate; a protective cover is arranged between two groups of the workbenches, the protective cover is connected to the main plate to form a welding cavity, the welding portion is located in the welding cavity, through grooves are also opened on both sides of the protective cover, a conveying component is arranged on the workbench, and a controller is installed on the protective cover.

[0006] According to a preferred embodiment, the moving component includes two groups of screw rods, multiple groups of first connecting plates are arranged on the main body plate, the first connecting plate is provided with a first bearing, both ends of the screw rod are respectively inserted into the first bearing, the two groups of the screw rods are symmetrically distributed, sliding rods are arranged on both sides of the screw rods, and the sliding rods are inserted into the multiple groups of first connecting plates; the bottom of the workbench is provided with a first connecting block and multiple groups of second connecting blocks, the first connecting block is sleeved on the screw rod, the second connecting block is sleeved on the sliding rod, and the workbench is slidably connected to the screw rod and the sliding rod.

[0007] According to a preferred embodiment, the moving component also includes a dual-axis motor, which is mounted on the main body plate, and multiple groups of second connecting plates are provided on the main body plate, and second bearings are provided on the second connecting plates; connecting rods are provided at both ends of the dual-axis motor, and both ends of the connecting rods are respectively passed through the second bearings, and the shaft ends at both ends of the dual-axis motor are respectively connected to the two groups of connecting rods, and connecting wheels are provided on the connecting rods and one end of the screw rod, and the two groups of connecting wheels are connected by a conveyor belt.

[0008] According to a preferred embodiment, the welding part includes a support frame and a welding gun, a first electric lifting rod is arranged under the support frame, the first electric lifting rod is slidably connected to the support frame through a movable structure, the welding gun is located under the first electric lifting rod, and a mounting plate is arranged on the movable end of the first electric lifting rod, and the welding gun is mounted on the mounting plate; a dust suction piece is also arranged on the mounting plate, and the dust suction piece is connected to an external dust suction component through a connecting pipe.

[0009] According to a preferred embodiment, two groups of mounting grooves are provided on one side of the protective cover, and the mounting grooves on both sides are arranged up and down, and fans are arranged in the mounting grooves, wherein the air outlet of one group of fans faces the welding chamber, and the air outlet of the other group of fans faces the welding chamber; an air duct is provided on one side of the support frame, and one end of the air duct is in contact with the protective cover, wherein the fan with the air outlet facing the welding chamber is located at one end of the air duct, and multiple groups of ventilation grooves are provided on the support frame, and multiple groups of ventilation grooves are located at the other end of the air duct; a temperature sensor is also provided in the welding chamber, and the temperature sensor is installed on the protective cover.

[0010] According to a preferred embodiment, the conveying assembly includes a lifting plate and multiple groups of slide rails, the lifting plate is located between the support plate and the workbench, multiple groups of mounting sleeves are arranged at the bottom of the workbench, the mounting sleeves are connected with the workbench, a second electric lifting rod is arranged in the mounting sleeve, and the lifting plate is connected with multiple groups of the second electric lifting rods; multiple groups of the slide rails are installed on the workbench and are symmetrically distributed, an electric slider is slidably arranged on the slide rail, a second electromagnet is arranged on the electric slider, the support plate is provided with a slide groove corresponding to the second electromagnet, the second electromagnet is penetrated in the slide groove, the top surface of the second electromagnet is parallel to the top surface of the support plate, and contacts with the plate body.

[0011] According to a preferred embodiment, the conveying assembly also includes multiple groups of rollers, a connecting seat is provided on the lifting plate, and the multiple groups of rollers are installed on the connecting seat in an equidistant manner and are rotatably connected to the connecting seat; the support plate is provided with a connecting groove corresponding to the connecting seat, and the multiple groups of rollers are inserted into the connecting groove, parallel to the top surface of the support plate, and in contact with the plate body.

[0012] According to a preferred embodiment, a limiting pressure plate is arranged above one group of the workbenches, and the limiting pressure plate is rotatably connected to the baffle on the workbench through a rotating shaft, a rotating motor is arranged on one side of the baffle, the shaft end of the rotating motor is connected to the rotating shaft, and the plate body is clamped between the limiting pressure plate and the support plate; a limiting frame is arranged above another group of the workbenches, and the limiting frame is detachably connected to the lifting plate above the workbench, the plate body is clamped between the limiting frame and the support plate, a plurality of limiting blocks are arranged on one side of the limiting frame, and the baffle is provided with a limiting groove corresponding to the limiting block, and the limiting block is clamped in the limiting groove.

[0013] According to a preferred embodiment, a plurality of groups of placement racks are arranged above the main body plate, the placement racks are in contact with one side of the workbench and are parallel to the top surface of the support plate, two groups of limit plates are arranged on the placement racks, and the length of one group of limit plates is shorter than that of the other group of limit plates; a material unloading rack is also arranged on the main body plate, the material unloading rack is in contact with one group of baffles and is parallel to the top surface of the baffles.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The L-shaped baffle on the workbench can be used to preliminarily position the plate body placed on the support plate from the adjacent two sides. The L-shape fits the corner shape of the plate body, effectively preventing the plate body from sliding randomly in the horizontal direction. At the same time, the multiple groups of pressure sensors on the baffle can monitor the contact pressure between the plate body and the baffle in real time. When the plate body is placed on the workbench, after the plate body contacts all the pressure sensors on the baffle, the signal detected by the pressure sensor is transmitted to the controller. The controller issues a command, and multiple groups of first electromagnets are started to fix the plate body and avoid the position of the plate body from shifting. At the same time, the setting of the limit pressure plate and the limit frame further enhances the positioning effect. The limit pressure plate can be rotatably connected to the baffle through the rotating shaft, and the plate body is clamped between the limit pressure plate and the support plate to prevent the plate body from shifting in the vertical direction. The limit frame on the other workbench is detachably connected to the lifting plate, which also firmly clamps the plate body. The multiple sets of limit blocks on one side of the limit frame accurately match the limit grooves on the baffle, which again ensures that the plate body can be positioned in all directions; the deviation in the placement position of the plate body is reduced, providing an accurate position basis for subsequent welding processes, and ensuring the neatness of the weld and the sealing between the plate body.

[0016] 2. The screw rod, sliding rod and dual-axis motor in the moving assembly cooperate with each other to control the position of the workbench, making it convenient to quickly move the plate body to be welded to the bottom of the welding part, thereby improving production efficiency. The first electric lifting rod and the moving structure of the welding part can adjust the position of the welding gun to meet the welding requirements of plate bodies of different specifications. At the same time, the dust collector on the mounting plate can timely remove the smoke and dust generated during the welding process to keep the welding environment clean. The fan on the protective cover works in synergy with the air duct and ventilation slots, and cooperates with the temperature sensor to effectively adjust the temperature in the welding chamber to avoid affecting the welding quality due to excessive temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model after assembly;

[0018] Figure 2 It is a schematic diagram of the structure of the utility model after being disassembled;

[0019] Figure 3 It is a schematic diagram of the structure after the welding part is split;

[0020] Figure 4 This is a schematic diagram of the structure after the limit pressure plate and the workbench are separated;

[0021] Figure 5 It is a schematic diagram of the structure after the limit frame and the workbench are separated;

[0022] Figure 6 It is a schematic diagram of the structure of the workbench;

[0023] Figure 7 It is a schematic diagram of the structure of the protective cover;

[0024] Figure 8 This is the principle block diagram of the controller.

[0025] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0026] 11. Main plate; 12. Protective cover; 13. First connecting plate; 14. Second connecting plate; 21. Plate body; 22. Pressure sensor; 23. First electromagnet; 24. Placement rack; 25. Limiting plate; 26. Unloading rack; 31. Workbench; 32. Support plate; 33. Baffle; 34. First connecting block; 35. Second connecting block; 36. Mounting sleeve; 37. Slide; 38. Limiting slot; 39. Connecting slot; 41. Screw rod; 42. Sliding rod; 43. Dual-axis motor; 44. Connecting rod; 45. Connecting wheel; 46 , conveyor belt; 501, support frame; 502, welding gun; 503, first electric lifting rod; 504, mounting plate; 505, dust collecting piece; 506, mounting slot; 507, fan; 508, air duct; 509, ventilation slot; 510, temperature sensor; 601, lifting plate; 602, slide rail; 603, second electric lifting rod; 604, electric slider; 605, second electromagnet; 606, roller; 607, connecting seat; 608, limit pressure plate; 609, rotating shaft; 610, limit frame; 611, limit block. DETAILED DESCRIPTION

[0027] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the technical solution of the present invention, but cannot be used to limit the protection scope of the present invention.

[0028] Embodiment: Figures 1 to 7As shown, the utility model provides a plate welding device for a plate heat exchanger with a positioning function, including a main body plate 11. The main body plate 11 serves as the basic bearing component of the entire device, and a plurality of workbenches 31 are orderly installed above the main body plate 11. The workbenches 31 are slidably connected to the main body plate 11 through a moving assembly, so that the workbenches 31 can move with each other, so that the plate bodies 21 are in contact with each other, which serves as a basis for subsequent welding. A detachable support plate 32 is provided on the workbench 31. The support plate 32 provides a stable support surface for subsequent operations on the one hand, and is convenient for maintenance and replacement on the other hand. L-shaped baffles 33 are provided on the adjacent two sides of the workbench 31. When the plate body 21 is placed on the support plate 32, it will contact the baffle 33. The baffle 33 plays a certain blocking and limiting role to prevent the plate body 21 from having a large displacement in the horizontal direction. In addition, multiple groups of pressure sensors 22 are also arranged on the baffle 33. These pressure sensors 22 can sense the pressure changes generated when the plate body 21 contacts it. Once the plate body 21 is in place, the pressure sensor 22 detects the corresponding signal and transmits the information. The pressure sensor 22 can use the Omron E8F2 pressure sensor. At the same time, the multiple groups of first electromagnets 23 arranged on the support plate 32 will play a role, using electromagnetic suction to fix the plate body 21 to prevent it from moving easily. A protective cover 12 is arranged between the two groups of workbenches 31. The protective cover 12 is connected to the main plate 11. The two are enclosed to form a relatively closed welding cavity, and the welding part is firmly placed in the welding cavity. In order to facilitate operation and ventilation and heat dissipation, through grooves are opened on both sides of the protective cover 12. In addition, a transmission component is also arranged on the workbench 31, which can assist the circulation of the plate body 21, and the controller installed on the protective cover 12 receives signals from various components, coordinates the orderly operation of various parts, and ensures the stable operation of the entire welding device. The controller can use the Mitsubishi FX5U controller.

[0029] like Figure 2 , Figure 6As shown, the moving assembly includes two groups of screw rods 41, which play a transmission and guiding role. Multiple groups of first connecting plates 13 are arranged at the corresponding positions of the main plate 11. The first connecting plates 13 are installed with first bearings. Both ends of the screw rods 41 penetrate into the first bearings to rotate smoothly. The two groups of screw rods 41 are symmetrically distributed, providing balanced power support for the subsequent smooth pushing of the workbench 31. At the same time, sliding rods 42 are also arranged in parallel on both sides of the screw rods 41. The sliding rods 42 sequentially pass through the multiple groups of first connecting plates 13 arranged on the main plate 11 to ensure that the workbench 31 will not deviate during the movement. A first connecting block 34 and a plurality of second connecting blocks 35 are provided at the bottom of the workbench 31. The first connecting block 34 is sleeved on the screw rod 41. As the screw rod 41 rotates, the workbench 31 can be driven to move axially along the screw rod 41. The plurality of second connecting blocks 35 are sleeved on the sliding rod 42 and cooperate with the sliding rod 42 to assist the workbench 31 in sliding smoothly. A reliable slidable connection relationship is established between the workbench 31 and the screw rod 41 and the sliding rod 42.

[0030] The moving assembly also includes a dual-axis motor 43, which is mounted on the main plate 11. In order to ensure stable operation, multiple sets of second connecting plates 14 are also provided on the main plate 11, and second bearings are installed on the second connecting plates 14. Connecting rods 44 extend from both ends of the dual-axis motor 43, and both ends of the connecting rods 44 penetrate into the second bearings to ensure flexible rotation. The shaft ends at both ends of the dual-axis motor 43 are firmly connected to the two sets of connecting rods 44 to achieve power transmission. Connecting wheels 45 are provided at one end of the connecting rod 44 and the screw rod 41, and the two sets of connecting wheels 45 are connected by a conveyor belt 46. When the dual-axis motor 43 starts to operate, power is transmitted to the screw 41 through the connecting rod 44, the connecting wheel 45 and the conveyor belt 46, driving the screw 41 to rotate, and then driving the workbench 31 to move as needed, meeting the requirements of different welding processes for the position of the workbench 31, and ensuring the orderly operation of the entire welding device; during the welding process, after the plate body 21 is placed on the workbench 31, the dual axes of the dual-axis motor 43 operate simultaneously, and the two groups of workbenches 31 move toward each other, so that the two groups of plate bodies 21 are in contact, which is convenient for subsequent welding; when the welding is completed, the conveying assembly on one group of workbenches 31 is started to move the plate body 21 after the welding is completed. When it moves to a certain position, the shaft end of one end of the dual-axis motor 43 rotates to move the workbench 31, and the conveying assembly on the workbench 31 operates to convey the welded plate body 21 out of the device.

[0031] like Figure 2 , Figure 3 , Figure 7As shown, the welding part includes a support frame 501 and a welding gun 502. A first electric lifting rod 503 is installed below the support frame 501. It is connected to the support frame 501 through a movable structure, so that it has a sliding characteristic. The first electric lifting rod 503 can change its position within a certain range to meet the needs of different welding scenes. A mounting plate 504 is provided at the movable end below the first electric lifting rod 503 of the welding gun 502. The welding gun 502 is fixed on the mounting plate 504. When welding operation is required, the welding gun 502 can be moved to a suitable position by lifting and lowering the first electric lifting rod 503 and its own sliding adjustment to ensure smooth welding work. The welding gun 502 can use a Panasonic YD-350AG2 welding gun. A dust suction component 505 is also provided on the mounting plate 504, and the dust suction component 505 is connected to an external dust suction component through a connecting pipe. During the welding process, it can promptly suck away the smoke and dust generated, keep the welding area relatively clean, and avoid excessive smoke and dust interfering with the welding quality and affecting the operator's vision.

[0032] Two groups of mounting slots 506 are provided on one side of the protective cover 12. The two groups of mounting slots 506 are arranged in an up-and-down arrangement. Fans 507 are placed inside the mounting slots 506. The air outlet of one group of fans 507 is directly facing the inside of the welding chamber, while the air outlet direction of the other group of fans 507 is opposite to that of the welding chamber. At the same time, a duct 508 is provided on one side of the support frame 501. One end of the duct 508 is attached to the protective cover 12, and the group of fans 507 with air outlets facing the welding chamber is located at one end of the duct 508. Multiple groups of ventilation slots 509 are evenly provided on the support frame 501. These ventilation slots 509 are located at the other end of the duct 508. In addition, a temperature sensor 510 is installed in the welding chamber. The temperature sensor 510 is fixed on the protective cover 12. The temperature sensor 510 can monitor the temperature in the welding chamber in real time. Once the temperature fluctuates abnormally, the operator can adjust the operating state of the fan 507 or take other cooling measures in time according to the feedback information to ensure that the welding work is carried out in a suitable temperature environment and prevent welding defects caused by temperature problems. The temperature sensor 510 can use a PT100 platinum resistance temperature sensor.

[0033] like Figure 2 , Figure 4 , Figure 5 As shown, the transmission assembly includes a lifting plate 601 and multiple sets of slide rails 602. The lifting plate 601 is located between the support plate 32 and the workbench 31. Multiple sets of mounting sleeves 36 are provided at the bottom of the workbench 31. The mounting sleeves 36 penetrate the workbench 31 and are provided with second electric lifting rods 603 inside. The lifting plate 601 is connected to multiple sets of second electric lifting rods 603. By controlling the lifting and lowering of the second electric lifting rods 603, the height of the lifting plate 601 can be easily changed to meet different operation requirements.

[0034] Multiple sets of slide rails 602 are installed on the workbench 31 and are symmetrically distributed, providing a stable track for the movement of objects. A slidable electric slider 604 is provided on the slide rail 602, and a second electromagnet 605 is installed on the electric slider 604. A slide groove 37 is provided at a position corresponding to the second electromagnet 605 on the support plate 32. The second electromagnet 605 can be smoothly inserted into the slide groove 37, and its top surface is kept parallel to the top surface of the support plate 32 and in contact with the plate body 21. When the plate body 21 needs to be moved, the plate body 21 can be driven to move by controlling the sliding of the electric slider 604 on the slide rail 602.

[0035] The transmission assembly also includes multiple groups of rollers 606. A connection seat 607 is provided on the lifting plate 601. The multiple groups of rollers 606 are installed on the connection seat 607 in an equidistant arrangement and can rotate with the connection seat 607. A connection slot 39 is provided at a position of the support plate 32 corresponding to the connection seat 607. The multiple groups of rollers 606 are inserted into the connection slot 39. Their top surfaces are parallel to the top surface of the support plate 32 and contact the plate body 21. The setting of the rollers 606 makes the plate body 21 smoother during movement and reduces the influence of friction.

[0036] In terms of the setting of the workbench 31, a limit pressure plate 608 is installed above one group of workbenches 31, and the limit pressure plate 608 is rotatably connected to the baffle 33 on the workbench 31 through a rotating shaft 609, and a rotating motor is arranged on one side of the baffle 33, and the shaft end of the rotating motor is connected to the rotating shaft 609, so that the limit pressure plate 608 can be automatically rotated by the rotating motor; when the plate body 21 is placed on the support plate 32, the rotating motor rotates the limit pressure plate 608, and the plate body 21 can be clamped between the limit pressure plate 608 and the support plate 32, effectively preventing the plate body 21 from being displaced in the vertical direction; when the conveying component is started, the rotating motor runs to unfold the limit pressure plate 608, which is convenient for the unloading operation of the plate body 21. A limit frame 610 is arranged above the other group of workbenches 31, and the limit frame 610 is detachably connected to the lifting plate 601 above the workbench 31. The plate body 21 is clamped between the limit frame 610 and the support plate 32. At the same time, multiple groups of limit blocks 611 are arranged on one side of the limit frame 610. The baffle 33 has a limit groove 38 corresponding to the position of the limit block 611. The limit block 611 can be clamped in the limit groove 38, which further ensures the stability of the position of the plate body 21 in all directions and provides a reliable foundation for subsequent welding work.

[0037] like Figure 2As shown, a plurality of groups of placement racks 24 are arranged above the main plate 11. The placement racks 24 are close to one side of the workbench 31, and the two maintain stable contact. At the same time, the placement racks 24 are also parallel to the top surface of the support plate 32. Such a layout provides convenience for subsequent operations. Two groups of limit plates 25 are arranged on the placement racks 24, and the length of one group of limit plates 25 is shorter than that of the other group. When an object is placed on it, the limit plates 25 of different lengths can play a blocking role from different directions to prevent the object from rolling or sliding at will, and ensure that the object is in a relatively stable position on the placement rack 24. At the same time, an additional unloading rack 26 is arranged on the main plate 11. The unloading rack 26 is in contact with one set of baffles 33, and its top surface remains parallel to the top surface of the baffle 33, so that the processed parts can be smoothly transferred from the working area to the unloading rack 26. In the operation process of the entire welding device, the placement rack 24 provides a temporary storage space for the plates to be processed, and the unloading rack 26 is responsible for receiving the finished products after the process is completed.

[0038] The specific usage and function of this embodiment are as follows:

[0039] When in use, start placing the plate body 21, first place the plate body 21 to be welded on the side of the workbench 31 close to the placement rack 24, and use the different lengths of the limit plates 25 on the placement rack 24 to assist in positioning, so that the plate body 21 can be placed stably to avoid rolling and sliding. Then, slowly push the plate body 21 onto the support plate 32 so that it is in close contact with the L-shaped baffle 33. At this time, the multiple groups of pressure sensors 22 on the baffle 33 immediately sense the pressure change. Once the plate body 21 is detected, the signal is quickly transmitted to the controller. The controller then instructs the multiple groups of first electromagnets 23 on the support plate 32 to start, and the powerful electromagnetic suction firmly fixes the plate body 21 to effectively prevent its displacement.

[0040] At the same time, another group of workbenches 31 also places the corresponding plate body 21 according to this step, and then starts the dual-axis motor 43, whose dual axes run synchronously, and the power is transmitted to the screw 41 through the connecting rod 44, the connecting wheel 45 and the conveyor belt 46, driving the screw 41 to rotate, and then driving the two groups of workbenches 31 to move towards each other, so that the two groups of plate bodies 21 are tightly fitted, making preliminary preparations for welding. Then open the welding part, control the lifting and lowering of the first electric lifting rod 503 through the controller, and use its movable structure with the support frame 501 to finely adjust the height and horizontal position of the welding gun 502 to ensure that the welding gun 502 is accurately aligned with the weld, and then the welding procedure can be officially started. During the welding process, the dust collection part 505 on the mounting plate 504 continues to work, and the generated smoke and dust are discharged to the external dust collection part in time through the connecting pipe, so as to always keep the welding area clean and prevent smoke and dust from interfering with the welding quality and affecting the operator's line of sight.

[0041] At the same time, the temperature sensor 510 monitors the temperature in the welding chamber in real time. Once the temperature fluctuates abnormally, the operator can adjust the operating status of the fan 507 in time according to the feedback information by speeding up or slowing down the speed of the fan 507 with the air outlet facing the welding chamber, or flexibly changing the wind force ratio of the two groups of fans 507, so as to ensure that the welding work is carried out in a suitable temperature environment and prevent welding defects caused by temperature problems.

[0042] After welding is completed, the conveying assembly on the set of workbenches 31 that have completed welding is started. First, the second electric lifting rod 603 is controlled to lift the lifting plate 601, so that the roller 606 can smoothly pass through the connecting groove 39 and contact the plate body 21, reducing the friction of the plate movement; then the electric slider 604 is driven to slide on the slide rail 602, and the second electromagnet 605 is used to drive the plate body 21 to move to a certain position. In particular, for the set of workbenches 31 equipped with a rotating motor to control the limit pressing plate 608, the rotating motor is running at this time to unfold the limit pressing plate 608 to free up the unloading space. Then the double-axis motor 43 is started again to rotate the shaft end of one end of it, driving the workbench 31 to move to a position close to the unloading rack 26, and the conveying assembly continues to operate to push the welded plate body 21 to the unloading rack 26, completing the entire welding and unloading process. After that, the above steps can be repeated to carry out the next round of welding operation of the plate body 21, and the production task can be completed continuously and efficiently.

[0043] The basic principle and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. A plate welding device for a plate heat exchanger with a positioning function, comprising a main plate (11), a plate body (21) and a welding portion, characterized in that: A plurality of workbenches (31) are arranged above the main plate (11), and the workbenches (31) are slidably connected to the main plate (11) via a moving assembly; a detachable support plate (32) is arranged on the workbenches (31), and baffles (33) are arranged on two adjacent sides of the workbenches (31), and the baffles (33) are arranged in an L shape; the plate body (21) is placed on the support plate (32) and in contact with the baffle (33); a plurality of pressure sensors (22) are arranged on the baffle (33), and a plurality of first electromagnets (23) are arranged on the support plate (32); two groups of the workbenches (31) are arranged on the support plate (32); A protective cover (12) is arranged between the support plate (32) and the main plate (11), the protective cover (12) and the main plate (11) are connected to form a welding cavity, the welding part is located in the welding cavity, through grooves are also opened on both sides of the protective cover (12), a transmission component is arranged on the workbench (31), and a controller is installed on the protective cover (12); the transmission component includes a lifting plate (601) and a plurality of slide rails (602), the lifting plate (601) is located between the support plate (32) and the workbench (31), and a plurality of mounting sleeves (36) are arranged at the bottom of the workbench (31), and the mounting sleeves (36) and the workbench (31) are connected to each other. ) is passed through, a second electric lifting rod (603) is arranged in the installation sleeve (36), and the lifting plate (601) is connected to multiple groups of the second electric lifting rods (603); multiple groups of the slide rails (602) are installed on the workbench (31) and are symmetrically distributed, an electric slider (604) is slidably arranged on the slide rail (602), and a second electromagnet (605) is arranged on the electric slider (604), and a slide groove (37) is opened on the support plate (32) corresponding to the second electromagnet (605), and the second electromagnet (605) is inserted in the slide groove (37), and the second electromagnet (605) ) is parallel to the top surface of the support plate (32) and is in contact with the plate body (21); the conveying assembly further comprises a plurality of groups of rollers (606), a connecting seat (607) is provided on the lifting plate (601), a plurality of groups of rollers (606) are equidistantly arranged and mounted on the connecting seat (607), and are rotatably connected to the connecting seat (607); a connecting slot (39) is provided on the support plate (32) corresponding to the connecting seat (607), a plurality of groups of rollers (606) are inserted into the connecting slot (39), are parallel to the top surface of the support plate (32), and are in contact with the plate body (21);A limiting pressure plate (608) is arranged above one group of the workbenches (31), and the limiting pressure plate (608) is rotatably connected to the baffle plate (33) on the workbench (31) via a rotating shaft (609). A rotating motor is arranged on one side of the baffle plate (33), and the shaft end of the rotating motor is connected to the rotating shaft (609). The plate body (21) is clamped between the limiting pressure plate (608) and the support plate (32). A limiting pressure plate (608) is arranged above the other group of the workbenches (31). A limit frame (610) is provided, the limit frame (610) is detachably connected to the lifting plate (601) above the workbench (31), the plate body (21) is clamped between the limit frame (610) and the support plate (32), a plurality of groups of limit blocks (611) are provided on one side of the limit frame (610), the baffle plate (33) is provided with a limit groove (38) corresponding to the limit block (611), and the limit block (611) is clamped in the limit groove (38). ; 2. The plate welding device for plate heat exchanger with positioning function according to claim 1, characterized in that: The moving assembly comprises two groups of screw rods (41), a plurality of groups of first connecting plates (13) are arranged on the main body plate (11), a first bearing is arranged on the first connecting plate (13), two ends of the screw rod (41) are respectively inserted into the first bearing, the two groups of screw rods (41) are symmetrically distributed, sliding rods (42) are arranged on both sides of the screw rods (41), and the sliding rods (42) are inserted into the plurality of groups of first connecting plates (13); a first connecting block (34) and a plurality of groups of second connecting blocks (35) are arranged at the bottom of the workbench (31), the first connecting block (34) is sleeved on the screw rod (41), the second connecting block (35) is sleeved on the sliding rod (42), and the workbench (31) is slidably connected with the screw rod (41) and the sliding rod (42).

3. The plate welding device with positioning function for plate type heat exchanger according to claim 2, characterized in that: The moving assembly further comprises a double-axis motor (43), wherein the double-axis motor (43) is mounted on the main body plate (11), and a plurality of groups of second connecting plates (14) are arranged on the main body plate (11), and a second bearing is arranged on the second connecting plate (14); connecting rods (44) are arranged at both ends of the double-axis motor (43), and both ends of the connecting rods (44) are respectively inserted into the second bearings, and the shaft ends at both ends of the double-axis motor (43) are respectively connected to the two groups of connecting rods (44), and the connecting rods (44) and one end of the screw rod (41) are both provided with connecting wheels (45), and the two groups of connecting wheels (45) are connected via a conveyor belt (46).

4. The plate welding device for plate heat exchanger with positioning function according to claim 1, characterized in that: The welding part comprises a support frame (501) and a welding gun (502); a first electric lifting rod (503) is arranged below the support frame (501); the first electric lifting rod (503) is slidably connected to the support frame (501) via a movable structure; the welding gun (502) is located below the first electric lifting rod (503) and a mounting plate (504) is arranged at a movable end of the first electric lifting rod (503); the welding gun (502) is mounted on the mounting plate (504); a dust collecting component (505) is also arranged on the mounting plate (504); the dust collecting component (505) is connected to an external dust collecting component via a connecting pipe.

5. The plate welding device with positioning function for plate type heat exchanger according to claim 4, characterized in that: Two groups of mounting grooves (506) are provided on one side of the protective cover (12), and the mounting grooves (506) on both sides are arranged up and down. Fans (507) are arranged in the mounting grooves (506), and the air outlet of one group of fans (507) faces the welding chamber, while the air outlet of the other group of fans (507) faces the welding chamber. An air duct (508) is provided on one side of the support frame (501), and one end of the air duct (508) contacts the protective cover (12), and the fans (507) with air outlets facing the welding chamber are located at one end of the air duct (508). The support frame (501) is provided with multiple groups of ventilation grooves (509), and the multiple groups of ventilation grooves (509) are located at the other end of the air duct (508). A temperature sensor (510) is also provided in the welding chamber, and the temperature sensor (510) is installed on the protective cover (12).

6. The plate welding device with positioning function for plate type heat exchanger according to claim 1, characterized in that: A plurality of sets of placement racks (24) are arranged above the main body plate (11), the placement racks (24) are in contact with one side of the workbench (31) and are parallel to the top surface of the support plate (32), and two sets of limit plates (25) are arranged on the placement racks (24), wherein the length of one set of limit plates (25) is shorter than the length of the other set of limit plates (25); a material unloading rack (26) is also arranged on the main body plate (11), and the material unloading rack (26) is in contact with one set of the baffle plates (33) and is parallel to the top surface of the baffle plates (33).

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