A production process and device for a multi-point laser welding self-cleaning heat transfer plate

Abstract

The present invention discloses a production process of a multi-point laser welding self-cleaning heat transfer plate, which includes the following steps: S1. Select two identical metal plates and align them, and divide the two metal plates into a peripheral area A and an intermediate area B within the peripheral area A; S2. Perform spot welding on the intermediate area B and seam welding on the peripheral area A; S3. Place the detection device on the workbench of the hydraulic press in an open state; then place the two metal plates on the base of the detection device, and then close the detection device; S4. Install at least a pair of pressing plates corresponding to the peripheral area A under the lower side of the crossbeam of the hydraulic press, and move the crossbeam downward to make the pressing plates press on the peripheral area A of the metal plates; S5. Blow high-pressure fluid into the metal plates so that the metal plates in the intermediate area of the two metal plates that are not welded together bulge to form a cavity, thereby manufacturing the heat transfer plate; detect whether there is fluid leakage from the side of the metal plates during bulging through the detection device.

Description

Technical Field

[0001] The present invention relates to the field of heat transfer plates, and particularly to a production process and device for a multi-point laser welded self-cleaning heat transfer plate. Background Art

[0002] In the existing heat transfer plate production process, generally two metal plates are welded together, and fluid or gas is introduced into the interior to make it bulge, forming a cavity inside.

[0003] However, after the cooler manufactured by the above manufacturing method is completed, it is also necessary to detect the sealing performance of the welded joint of the two metal plates forming the "cavity" to eliminate those that do not meet the requirements to ensure quality. The existing detection method usually places the heat transfer plate upright in a pool filled with a certain amount of liquid. After a period of time, it is observed whether there are bubbles on the side of the heat transfer plate placed in the liquid. If there are bubbles, it means that it is not completely sealed; if there are no bubbles, it means that it is completely sealed. All four sides of the heat transfer plate need to be immersed for detection. Therefore, this requires additional manpower, material resources, and time for detection, which is time-consuming and laborious, prolongs the delivery time, and reduces production efficiency. If the bubbles are small, they are not easily detected, resulting in misjudgment. For this reason, the present invention provides a production process and device for a multi-point laser welded self-cleaning heat transfer plate. Summary of the Invention

[0004] The purpose of the present invention is to provide a production process and device for a multi-point laser welded self-cleaning heat transfer plate to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A production process for a multi-point laser welded self-cleaning heat transfer plate includes the following steps:

[0007] S1. Select two identical metal plates and align them, and divide the two metal plates into a peripheral area A and an intermediate area B within the peripheral area A;

[0008] S2. Perform spot welding in the intermediate area B, perform seam welding in the peripheral area A, and reserve an inlet and an outlet on the same side of the two metal plates, and temporarily block one of the inlets or outlets of the two metal plates;

[0009] S3. Place the detection device on the workbench of the hydraulic press in an open state; then place the two metal plates on the base of the detection device, and then close the detection device to fit against the side of the metal plates;

[0010] S4. Install at least a pair of pressing plates corresponding to the peripheral area A under the lower side of the crossbeam of the hydraulic press, and move the crossbeam downward to press the pressing plates on the peripheral area A of the metal plates to fix the metal plates;

[0011] S5. Blow high-pressure fluid into the metal plate to cause the un-welded area in the middle of the two metal plates to bulge inside the metal plate, thereby forming a cavity, and thus fabricate a heat transfer plate; use a detection device to detect whether there is fluid leakage from the side of the metal plate during bulging.

[0012] Preferably, a device used in a multi-point laser welding self-cleaning heat transfer plate production process includes a detection device. The detection device includes a pair of support frames, a pair of support plates, a display structure installed on the support frames or support plates, and a plurality of flipping structures fixedly connected to the display structure. The flipping structures drive the display structure to rotate to fit or disengage from the side of the heat transfer plate to detect whether there is fluid leakage; a pair of support frames and a pair of support plates enclose a base, and a driving structure passing through the base is meshed and connected to the lower side of the flipping structure.

[0013] Preferably, the support frame is stepped outward and downward, and is successively set as step one, step two, and step three. A limiting rod flush with step one is fixedly connected to the upper side of the support plate; a clamping plate one is rotatably connected to step two, and a clamping plate two rotatably connected to the support plate is arranged outside the limiting rod; a pair of step fours are further arranged outside the end of step one, and the bottom of the clamping plate two is located on step four and the upper side of the support plate.

[0014] Preferably, the display structure includes a display cloth and a clamping member. The clamping member is used to clamp the upper side of the display cloth, and the lower side of the display cloth is clamped by the clamping plate one or the clamping plate two. The lower side of the clamping member is rotatably connected to the flipping structure.

[0015] Preferably, the flipping structure includes a pair of limiting members, a rotating member rotatably connected between the pair of limiting members, a rotating rod, and a pair of transmission belts. The pair of transmission belts are sleeved on the lower side of the rotating member and the outer wall of the rotating rod. The upper side of the rotating member is rotatably connected to the clamping member. The rotation of the rotating rod can drive the transmission belts and the rotating member to rotate, thereby driving the display cloth to rotate; the rotating rod is meshed and connected to the driving structure.

[0016] Preferably, the limiting member includes a connecting plate and a limiting plate. The inner side of the connecting plate is rotatably connected to the rotating member and the rotating rod, and the outer side is slidably connected to the limiting plate; the connecting plate is attached to the outer side of the clamping plate two or the clamping plate one, and a limiting groove matching the limiting plate is opened on the corresponding support plate or step three; a lifting rod is fixedly connected to the outer sides of the plurality of limiting plates on the same side.

[0017] Preferably, the driving structure includes multiple pairs of moving members one, multiple pairs of moving members two located below the moving members one, and a reversing member located below the moving members two. The reversing member is meshed and connected to the moving members two, and each moving member one or moving member two respectively corresponds to two flipping structures located on a pair of support plates or a pair of support frames.

[0018] Preferably, the first moving member or the second moving member is respectively meshed and connected to the middle parts of the rotating rods on the two flipping structures. By moving the first moving member or the second moving member, the corresponding pair of rotating rods can be driven to rotate relative to each other, so as to drive the display cloth to rotate relative to each other; a collecting rod is further arranged on any one of the supporting plates. One side of the collecting rod is fixedly connected to the end parts of all the moving members on the supporting plate, and the other side is rotatably connected with a pushing plate.

[0019] Preferably, the reversing member includes a reversing rod and a plurality of reversing shafts corresponding to the second moving member. The reversing rod passes through the middle parts of the pair of supporting plates and extends to the supporting plates. The upper and lower sides of the reversing shafts are respectively meshed and connected with the second moving member and the reversing rod. By moving the reversing rod to drive the reversing shafts to rotate, the second moving member can be driven to move; a driving plate is rotatably connected to the upper side of the end part of the reversing rod.

[0020] Preferably, the detecting device further includes a positioning structure. The positioning structure includes a pair of fixing rods fixedly connected to the upper side of the second step, an adjusting rod, a pair of rotating components and a positioning plate fixedly connected to the upper side of the adjusting rod. The rotating components penetrate through the fixing rods and are fixedly connected to the end parts of the adjusting rod. The rotating components drive the adjusting rod and the positioning plate to rotate; a stop plate is fixedly connected to the end part of the positioning plate. The L-shaped side surface formed by the stop plate and the positioning plate can be attached to the limiting plate and the outer side of the first step.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] By adding the detecting device, the production and manufacturing of the heat transfer plate and the sealing detection work are carried out simultaneously. When the pair of metal plates are bulged, the display cloth is attached to the side surface of the metal plate. By observing the depth of the color of the display cloth, it can be judged whether the pair of metal plates are completely sealed, thus improving the production efficiency.

[0023] By rotating the flipping structure, the flipping structure drives the display cloth to rotate to attach to or disengage from the side surface of the metal plate. By driving the second moving member to move through the first moving member or the reversing member, the flipping structure can be driven to rotate relatively, so as to synchronously attach to the side surface of the metal plate; by driving the first moving member or the reversing member to move through the collecting rod or the driving plate, the operation is more convenient.

[0024] The first clamping plate, the second clamping plate and the clamping member clamp the display cloth, which is convenient for replacing a new display cloth. Both the connecting plate and the second clamping plate are lower than the limiting rod, so that the display cloth can be rotated to be lower than the limiting rod, which is convenient for the metal plate to be placed on the limiting rod and the first step without scratching the display cloth.

[0025] The pair of fixing rods away from the positioning plate limit the moving path of the metal plate. At the same time, the positioning plate and the stop plate limit the moving end point of the metal plate, so as to limit the metal plate at a specified position, which is convenient for the display cloth to attach to the side surface of the metal plate to detect the sealing performance.

[0026] The metal plate is placed on step one and the limiting rod, at a certain distance from the lower support plate and the driving structure, leaving space for the metal plate to bulge downward. Brief Description of the Drawings

[0027] Figure 1 It is a side view when the metal plate of the present invention is bulged;

[0028] Figure 2 It is a schematic diagram of the overall structure of the detection device of the present invention and the structure at the connection of the support plate and the support frame;

[0029] Figure 3 It is a schematic cross-sectional structure diagram at the connection of the support frame and the support plate of the present invention;

[0030] Figure 4 It is a disassembled schematic diagram at the connection of the support frame and the support plate of the present invention;

[0031] Figure 5 It is an enlarged structural schematic diagram of the display cloth attached to the side of the metal plate and the clamping member of the present invention;

[0032] Figure 6 It is a schematic diagram of the structure at the connection of the flipping structure and the support plate of the present invention;

[0033] Figure 7 It is a disassembled diagram of the flipping structure at the support plate of the present invention;

[0034] Figure 8 It is a disassembled diagram of the structure at the limiting member at the support plate of the present invention;

[0035] Figure 9 It is an enlarged diagram of the flipping structure at the support frame of the present invention;

[0036] Figure 10 It is a top view of the connection between the base and the driving structure of the present invention;

[0037] Figure 11 It is a schematic diagram of the structure at the connection between the base and the driving structure of the present invention;

[0038] Figure 12 It is a disassembled diagram of the structure at the collecting rod and the driving plate of the present invention;

[0039] Figure 13 It is a disassembled diagram of the structure at the positioning structure and the base of the present invention;

[0040] Figure 14 It is a disassembled diagram of the structure at the connection between the rotating assembly and the adjusting rod of the present invention;

[0041] Figure 15 It is a schematic diagram of the structure at the connection between the positioning plate and the stop plate of the present invention.

[0042] In the figure: 1 shows a structure, 11 shows a cloth, 12 shows a clamping member, 121 shows a bottom clamp, 122 shows a top clamp, 2 shows a base, 21 shows a support frame, 211 shows a first step, 212 shows a second step, 213 shows a third step, 214 shows a fourth step, 22 shows a support plate, 221 shows a limiting rod, 23 shows a first clamping plate, 24 shows a second clamping plate, 3 shows a positioning structure, 31 shows a fixing rod, 32 shows an adjusting rod, 33 shows a rotating assembly, 331 shows a limiting rod, 3311 shows a limiting tooth, 332 shows a limiting rod, 333 shows a cap, 34 shows a positioning plate, 341 shows a stop plate, 4 shows a flipping structure, 41 shows a limiting member, 411 shows a connecting plate, 412 shows a limiting plate, 413 shows a sliding bar, 42 shows a transmission belt, 421 shows a limiting groove, 422 shows a sliding groove, 43 shows a rotating member, 431 shows a support member, 432 shows a fixing block, 44 shows a rotating rod, 45 shows a lifting rod, 5 shows a driving structure, 51 shows a first moving member, 511 shows a first driving rod, 512 shows a first rotating shaft, 52 shows a second moving member, 521 shows a second driving rod, 522 shows a second rotating shaft, 53 shows a reversing member, 531 shows a reversing rod, 532 shows a reversing shaft, 61 shows an assembling rod, 62 shows a pushing plate, 63 shows a driving plate, 10 shows a detecting device, 20 shows a pressing plate, 30 shows a hydraulic press. Detailed implementation manners

[0043] Embodiment 1:

[0044] Please refer to Figures 1 - 15 , the present invention provides a technical solution: a production process of a multi-point laser welding self-cleaning heat transfer plate, including the following steps:

[0045] S1. Select two identical metal plates and align them, and divide the two metal plates into a peripheral area A and an intermediate area B within the peripheral area A;

[0046] S2. Perform spot welding at multiple points in the intermediate area B; perform continuous hemming welding in the peripheral area A, and leave an inlet and an outlet on the same side of the two metal plates, and then manually block one of the inlets or outlets of the two metal plates;

[0047] S3. Place the detecting device 10 on the workbench of the hydraulic press 30 and keep it in an open state; then place the two metal plates on the base 2 of the detecting device 10, and then close the detecting device 10 to fit against the side of the metal plates;

[0048] S4. Install at least one pair of pressing plates 20 under the crossbeam of the hydraulic press 30, the pressing plates 20 correspond to the peripheral area A, move the crossbeam downward, and let the pressing plates 20 press on the peripheral area A of the metal plates to fix the metal plates;

[0049] S4. Blow high-pressure fluid into the metal plates so that the metal plates in the intermediate area of the two metal plates that are not welded together bulge to form a cavity, thereby manufacturing a heat transfer plate; detect whether there is fluid leakage from the sides of the two metal plates when blowing high-pressure fluid through the detecting device 10, and complete the seal detection while the cavity is formed.

[0050] As shown Figures 2 - 6 in the figure, a device used in the production process of a multi-point laser welding self-cleaning heat transfer plate includes a detection device 10. The detection device 10 includes a pair of support frames 21, a pair of support plates 22, a display structure 1 mounted on the support frame 21 or the support plate 22, and a plurality of flipping structures 4 fixedly connected to the display structure 1. A pair of support frames 21 and a pair of support frames 21 enclose a base 2. A metal plate is placed through the base 2. The flipping structure 4 drives the display structure 1 to rotate to fit or disengage from the side of the heat transfer plate to detect whether there is fluid leakage. A driving structure 5 penetrating the base 2 is meshed and connected to the lower side of the flipping structure 4 to drive the flipping structure 4 to rotate. The flipping structure 4 is mounted on the outside of the display structure 1 and fixedly connected to the display structure 1 at the upper side to drive the display structure 1 to rotate.

[0051] A pair of support plates 22 are fixedly connected in the middle of a pair of support frames 21 and close to the ends of the pair of support frames 21 to enclose a space for placing the heat transfer plate. The height of the support frame 21 decreases step by step towards the outside, which are set as step one 211, step two 212, and step three 213. A clamping plate one 23 is rotatably connected to the step two 212. A limiting rod 221 flush with the height of the step one 211 is fixedly connected to the middle part of the upper side of the support plate 22. A clamping plate two 24 is arranged outside the limiting rod 221. The height of the clamping plate two 24 is lower than that of the limiting rod 221 and is rotatably connected to the support plate 22. A rectangular frame for placing the heat transfer plate is formed by the step one 211 and the limiting rod 221. The peripheral area A of the heat transfer plate is placed on the step one 211 and the limiting rod 221 to leave space for the heat transfer plate to bulge. The end of the step one 211 is flush with the outer side wall of the limiting rod 221, and the end of the clamping plate two 24 is flush with the outer side wall of the step one 211. A pair of step fours 214 (see Figure 4 ) are also arranged at both ends of the step one 211. The bottom of the clamping plate two 24 matches the step four 214 and the upper side of the support plate 22.

[0052] As shown Figure 5 in the figure, the display structure 1 is located on the side of the heat transfer plate. The display structure 1 includes a display cloth 11 and a clamping member 12. The clamping member 12 is close to the side of the heat transfer plate and is used to clamp the upper side of the display cloth 11. The lower side of the corresponding display cloth 11 is clamped by the clamping plate one 23 or the clamping plate two 24. The lower side of the clamping member 12 is rotatably connected to the flipping structure 4. The flipping structure 4 can drive the display cloth 11 to rotate to fit or disengage from the side of the heat transfer plate. The display cloth 11 is selected as a light-colored elastic breathable fabric, which can make the display cloth 11 fit the side of the heat transfer plate. When the fluid inside the heat transfer plate flows out, the color of the light-colored breathable fabric becomes darker, and it can be judged whether there is a gap between the two metal plates and the position of the gap through the color depth of the display cloth 11.

[0053] The clamping member 12 includes a bottom clamp 121 and a top clamp 122. The bottom clamp 121 and the top clamp 122 are rotatably connected by a hinge on one side away from the display cloth 11, and the other side is used to clamp the upper side of the display cloth 11. The opposite sides of the bottom clamp 121 and the top clamp 122 are also fixed by snapping to prevent the display cloth 11 from falling off between the bottom clamp 121 and the top clamp 122.

[0054] like Figures 6 - 9 As shown, the flip structure 4 includes a pair of limit members 41, a pair of transmission belts 42, a rotating member 43 and a rotating rod 44. The lower side of the rotating member 43 and the rotating rod 44 are rotatably connected between the pair of limit members 41. A plurality of sets of racks are fixedly connected to the outer wall of the middle part of the rotating rod 44. A pair of transmission belts 42 are sleeved on the lower side of the rotating member 43 and the outer wall of the rotating rod 44. The transmission belts 42 are distributed on both sides of the racks. The transmission belts 42 can be driven to rotate by rotating the rotating rod 44, and the rotation of the transmission belts 42 drives the rotating member 43 to rotate. The rotating rod 44 is located on the upper side of the support plate 22 or the step three 213, and the middle part of the rotating rod 44 is meshed and connected with the driving structure 5.

[0055] The limiting member 41 includes a connecting plate 411, a limiting plate 412 and a sliding bar 413. The inner side of the connecting plate 411 is rotatably connected to the rotating member 43 and the rotating rod 44, and the outer side is fixedly connected to the sliding bar 413. The limiting plate 412 is slidably connected to the sliding bar 413. A notch is provided at the bottom of the connecting plate 411 near the second clamping plate 24 or the first clamping plate 23, so that the cross section of the connecting plate 411 is L-shaped to fit with the outer side of the second clamping plate 24 or the first clamping plate 23. A limiting groove 421 is provided at the support plate 22 close to the second clamping plate 24 or the step three 213 close to the first clamping plate 23. The limiting groove 421 matches the limiting plate 412, so that the limiting plate 412 can slide down to the limiting groove 42 1, limiting the movement of the connecting plate 411; a slider is fixedly connected to the lower side of the connecting plate 411, and a sliding groove 422 is provided at the step three 213 or the support plate 22 corresponding to the slider, and the sliding groove 422 is extended to the outer side of the step three 213 or the support plate 22, and the connecting plate 411 can move along the sliding groove 422 in the direction away from the display cloth 11; all the limiting plates 412 on the same side of the support plate 22 or the step three 213 are fixedly connected to the side away from the display cloth 11 with a lifting rod 45, and the lifting rod 45 is lifted upward, so that all the limiting plates 412 on the same side are lifted upward and separated from the limiting groove 421, so that the connecting plate 411 can move along the sliding groove 422.

[0056] The rotating member 43 includes an I-shaped support member 431 and a pair of fixed blocks 432. The support member 431 is located on the upper side of the clamping plate 1 23 or the clamping plate 24. The two ends of the lower side of the support member 431 are rotatably connected to the connecting plate 411, and the two ends of the upper side pass through a pair of fixed blocks 432. The fixed blocks 432 are fixedly connected to the lower side of the bottom clamp 121. The rotation of the support member 431 can drive the clamping member 12 and the display cloth 11 to rotate, so as to fit the side of the heat transfer plate or detach from the side of the heat transfer plate.

[0057] As Figures 9 - 12 shown, the driving structure 5 includes multiple pairs of first moving members 51, multiple pairs of second moving members 52, and a reversing member 53. The second moving members 52 are located below the first moving members 51, and the reversing member 53 is meshed and connected with the second moving members 52. Each first moving member 51 correspondingly locates multiple flipping structures 4 on a pair of support plates 22, and each second moving member 52 correspondingly locates multiple flipping structures 4 on a pair of support frames 21. The first moving member 51 includes multiple pairs of first driving rods 511 and multiple first rotating shafts 512. Each first rotating shaft 512 correspondingly locates in the middle of each pair of first driving rods 511 and is meshed and connected with the first driving rods 511. Each first driving rod 511 penetrates through the upper side of the support plate 22 and extends to be close to the outer side surface of the support plate 22. The first driving rod 511 at the support plate 22 passes through the lower side of the corresponding rotating rod 44 and is meshed and connected with the rotating rod 44. By pulling one of the first driving rods 511, the other first driving rod 511 can be driven to move towards each other, so that the corresponding pair of rotating rods 44 rotate in the same direction or in opposite directions. Preferably, one of the first driving rods 511 is Z-shaped, so that a pair of first driving rods 511 move along the same axis, so that the corresponding pair of flipping structures 4 are on the same axis, and relative rotation is performed accordingly. A collecting rod 61 is further provided on any one of the support plates 22. One side of the collecting rod 61 is fixedly connected to the ends of all the first driving rods 511 on the support plate 22, and the other side is rotatably connected with a pushing plate 62. The pushing plate 62 is rotated to be perpendicular to the support plate 22, which is convenient for pulling the collecting rod 61 and the corresponding first driving rod 511 to move through the pushing plate 62. Thereby, the rotating members 43 on the multiple flipping structures 4 located on a pair of support plates 22 and on the same axis are driven to rotate towards each other or in opposite directions, so as to drive the display cloth 11 to fit or disengage from the side surface of the heat transfer plate.

[0058] The second moving member 52 includes multiple pairs of second driving rods 521 and multiple second rotating shafts 522. Each second rotating shaft 522 correspondingly locates in the middle of a pair of second driving rods 521 and is meshed and connected with the pair of second rotating shafts 522. The second driving rods 521 pass through the lower side of the rotating rod 44 at the support frame 21 and extend to be close to the outside of the support frame 21. The second driving rods 521 are meshed and connected with the corresponding rotating rods 44.

[0059] The reversing member 53 includes a reversing rod 531 and a plurality of reversing shafts 532. The reversing rod 531 is located below the second driving rod 521 and passes through the middle of a pair of support plates 22 and extends to the outside of the support plates 22. The number of the plurality of reversing shafts 532 corresponds to the number of the second driving rods 521. The upper side of the reversing shaft 532 is meshed and connected with the second driving rod 521, and the lower side is meshed and connected with the reversing rod 531. Preferably, the reversing shaft 532 is located on the side of the reversing rod 531 close to the first step 211. The movement of the reversing rod 531 drives the reversing shaft 532 to rotate, thereby driving each pair of the second driving rods 521 to move towards each other. The movement of the second driving rod 521 drives the rotation of a plurality of rotating rods 44 on the corresponding support frame 21, thereby driving the display cloth 11 on the support frame 21 to rotate and fit the side of the heat transfer plate or disengage from the side of the heat transfer plate; an embedding groove communicating with the reversing rod 531 is provided on the upper side of the end of the reversing rod 531. A driving plate 63 is arranged in the embedding groove. The driving plate 63 is rotatably connected to the upper side of the reversing rod 531. Rotate the driving plate 63 to be perpendicular to the support plate 22, and then pull the driving plate 63 to drive the reversing rod 531 to move. Preferably, the driving plate 63 and the collecting rod 61 are located on the same support plate 22.

[0060] As Figures 13 - 15 shown, the detecting device 10 further includes a pair of positioning structures 3. The positioning structures 3 are located above the display structure 1 arranged on the support frame 21 to position the position of the heat transfer plate on the base 2; the positioning structures 3 include a pair of fixing rods 31, an adjusting rod 32, a pair of rotating components 33 and a positioning plate 34; the fixing rods 31 are fixedly connected to the upper side of the second step 212. The rotating component 33 passes through the fixing rod 31 and is fixedly connected to the end of the adjusting rod 32. The positioning plate 34 is fixedly connected to the upper side of the adjusting rod 32; the rotating component 33 includes a limiting rod 331, a limiting rod 332 and a cap 333. One end of the limiting rod 331 is fixedly connected to the adjusting rod 32, and the other end is fixedly connected to the cap 333. A plurality of limiting teeth 3311 are fixedly connected to the outer wall of the limiting rod 331, and the limiting teeth 3311 are fixedly connected to the side of the cap 333. Through grooves corresponding to the limiting teeth 3311 are provided on the fixing rod 31 and the limiting rod 332 to limit the fixing rod 31 and the limiting rod 332 between the cap 333 and the end of the adjusting rod 32. The distance between the limiting teeth 3311 and the opposite end of the adjusting rod 32 is greater than the width of the fixing rod 31 and the limiting rod 332. When the limiting rod 332 slides to the limiting teeth 3311, the limiting rod 332 can drive the limiting rod 331 and the adjusting rod 32 to rotate, otherwise it cannot drive the limiting rod 331 and the adjusting rod 32 to rotate; the side of the positioning plate 34 is flush with the outer side of the first step 211, and a stop plate 341 is fixedly connected to the end of the positioning plate 34. The L-shaped side formed by the stop plate 341 and the positioning plate 34 can be attached to the limiting rod 221 and the outer side of the first step 211 to limit the moving position of the metal plate when placing the metal plate. Preferably, the stop plate 341 is located at the support plate 22 where the collecting rod 61 is not arranged.

[0061] Usage process of the detection device 10: After the worker places the detection device 10 on the workbench of the hydraulic press 30, the detection device 10 is adjusted to the on state. The worker rotates the push plate 62 on either side to be perpendicular to the support plate 22, and then pushes it in the direction close to the display cloth 11. The push plate 62 drives the collecting rod 61 to move, the collecting rod 61 drives a plurality of first driving rods 511 to move, and drives the first driving rods 511 on the opposite side to move through the rotation of the first rotating shaft 512, realizing the relative movement of a pair of first driving rods 511, so that a pair of first driving rods 511 drive the corresponding pair of rotating rods 44 to rotate in the opposite direction. The rotating rod 44 drives the conveyor belt 42 to rotate, the conveyor belt 42 drives the support member 431 to rotate, the support member 431 drives the fixed block 432 and the clamping member 12 to rotate, and the clamping member 12 drives the display cloth 11 to rotate towards the outside of the support plate 22 until the display cloth 11 on the two opposite sides rotates below the limit rod 221. Here, the worker can rotate the push plate 62 to be horizontal with the support plate 22 again (see Figure 10 ); Then the worker operates again to make the display cloth 11 on the other two opposite sides rotate below the first step 211. The operation method is: Rotate the drive plate 63 on either side to be perpendicular to the support plate 22 and push it in the direction away from the display cloth 11. The drive plate 63 drives the reversing rod 531 to move, the reversing rod 531 drives a plurality of reversing shafts 532 to rotate, the reversing shafts 532 drive the second driving rods 521 to move along the length direction of the support plate 22, and drive the second driving rods 521 on the other side to move through the second rotating shaft 522, realizing the relative movement of a pair of second driving rods 521 in the opposite direction. The second driving rods 521 drive the rotating rods 44 to rotate in the direction away from the display cloth 11 until the display cloth 11 on a pair located on the support frame 21 rotates below the first step 211. Here, the worker can rotate the drive plate 63 to be horizontal with the support plate 22 again (such as Figure 10 ).

[0062] Next, make positioning preparations for the placement of two spot-welded and seam-welded metal plates: First, push the limiting rod 332 to fit with the cap 333 and snap into the limiting teeth 3311. Rotate the limiting rod 332 to drive the adjusting rod 32, the positioning plate 34, and the stop plate 341 to rotate. The positioning plate 34 rotates towards the support frame 21 (such as Figure 15 the state shown), push the limiting rod 332 to fit with the fixed rod 31 and disengage from the limiting teeth 3311 to prevent the limiting rod 332 from driving the adjusting rod 32 to rotate and prevent the positioning plate 34 and the stop plate 341 from rotating, resulting in inaccurate positioning. At this time, the inner sides of the positioning plate 34 and the stop plate 341 are flush with the outer sides of the limit rod 221 and the outer side of the first step 211, which is used to position the metal plate placed on it later; The worker adjusts the detection device 10 to the designated position on the workbench of the hydraulic press 30 so that a pair of pressing plates 20 are opposite to the first step 211 and the limit rod 221, facilitating the subsequent downward movement of the pressing plates 20 to press on the peripheral area A.

[0063] At this time, the worker starts to push a pair of metal plates that have been welded to block either the outlet or the inlet from one side. First, a pair of opposite fixed rods 31 enable the pair of metal plates to accurately move on a pair of step one 211 until they move between a pair of positioning plates 34. Continuing to move until the end of the metal plate abuts against the stop plate 341. At this time, the outer side of the metal plate fits against the inner sides of the positioning plate 34 and the stop plate 341, that is, the peripheral area A of the metal plate is located on the step one 211 and the limit rod 221. Push the limiting rod 332 to fit with the cap 333, and then reverse-rotate the limiting rod 332. The limiting rod 332 drives the adjusting rod 32, the positioning plate 34 and the stop plate 341 to reverse-rotate until the positioning plate 34 and the stop plate 341 are located above the adjusting rod 32. Push the limiting rod 332 to fit with the fixed rod 31 to prevent the limiting rod 332 from rotating, which may affect the subsequent fitting of the display cloth 11 with the metal plate.

[0064] Close the detection device 10, which is the opposite operation to the process of adjusting the above detection device 10 to the open state: The worker pushes the push plate 62 on either side to rotate until it is perpendicular to the support plate 22, and again drives the collecting rod 61 to move away from the display cloth 11 through the push plate 62. The collecting rod 61 drives the corresponding driving rod one 511 to move, drives the other driving rod one 511 to move through the rotating shaft one 512, so that a pair of rotating rods 44 rotate in the opposite direction, driving the conveyor belt 42 to rotate, the support member 431 to rotate, the fixed block 432 and the clamping member 12 to rotate. The clamping member 12 drives the display cloth 11 to rotate towards the limit rod 221 until the display cloth 11 is relatively fitted with the side of the metal plate. Since the display cloth 11 is made of an elastic material, it can achieve relative fitting with the side of the metal plate. Similarly, the worker drives the reversing rod 531 to move towards the display cloth 11 through the driving plate 63. The reversing rod 531 drives the reversing shaft 532 to rotate, driving the corresponding driving rod two 521 to move along the length direction of the support plate 22, driving the rotating shaft two 522 to drive the other driving rod two 521 to move. The driving rod two 521 drives the rotating rod 44 to rotate until the display cloth 11 is fitted with the side of the metal plate.

[0065] When the crossbeam moves downward and the pressing plate 20 presses on the peripheral area A of the metal plate, the metal plate is fixed to prevent the metal plate from moving during bulging. Then, high-pressure fluid is injected through the display cloth 11 into the pair of metal plates for bulging. At the same time, observe the color of the display cloth 11. If the color of the display cloth 11 becomes darker, it means that the fluid flows out from the side of the metal plate corresponding to the darker area of the display cloth 11. If the color of the display cloth 11 does not change, it means that the seal is okay.

[0066] For the metal plate with good sealing, after bulging, it becomes a heat transfer plate. Open the detection device 10 and pull out the heat transfer plate.

[0067] For the metal plate with fluid leakage, turn on the detection device 10, take out the metal plate and perform subsequent processing, and then take out the detection device 10 and replace the new display cloth 11; specifically, the worker first removes the upper side of the display cloth 11 from the clamping member 12, and then lifts the lifting rod 45 on the same side as the display cloth 11 to be replaced, driving the corresponding plurality of flipping structures 4 to move synchronously. The lifting rod 45 drives the limiting plate 412 to move upward until the limiting plate 412 disengages from the limiting groove 421, and then pulls the lifting rod 45 in the direction towards the outside of the support plate 22 or the support frame 21. The lifting rod 45 drives the overall flipping structure 4, the first clamping plate 23 or the second clamping plate 24, the display cloth 11 and the clamping member 12 to move together until the first clamping plate 23 or the second clamping plate 24 is separated from the corresponding first step 211 and the limiting rod 221, facilitating the first clamping plate 23 or the second clamping plate 24 to clamp the new display cloth 11. Then, lower the lifting rod 45, open the first clamping plate 23 or the second clamping plate 24, place the lower side of the new display cloth 11 between the first clamping plate 23 and the second step 212 or between the second clamping plate 24 and the support plate 22 and fix it; the worker lifts the lifting rod 45 again, driving the overall flipping structure 4, the first clamping plate 23 or the second clamping plate 24, the display cloth 11 and the clamping member 12 to move in the reverse direction until the connecting plate 411 fits with the first clamping plate 23 or the second clamping plate 24, lower the lifting rod 45, the lifting rod 45 drives the limiting plate 412 to descend, the limiting plate 412 descends into the limiting groove 421, place the upper side of the display cloth 11 between the bottom clip 121 and the top clip 122 and fix it, and the replacement of the new display cloth 11 is completed; then the airtightness of the side of the metal plate can be detected again.

Claims

1. A multi-point laser welding self-cleaning heat transfer plate production process, characterized in that: The following steps are involved: S1, selecting two identical metal plates and aligning them, and dividing the two metal plates into a peripheral area A and a middle area B within the peripheral area A; S2. Spot welding is performed in the middle area B, and roll welding is performed in the peripheral area A. In addition, an inlet and an outlet are reserved on the same side of the two metal plates to temporarily block the inlet or outlet of the two metal plates; S3, placing the detection device (10) on the workbench of the hydraulic press (30) in an open state; placing two metal plates on the base (2) of the detection device (10), and then closing the detection device (10) to fit on the side surfaces of the metal plates; S4, installing a pair of pressing plates (20) corresponding to at least the peripheral area A on the lower side of the crossbeam of the hydraulic press (30), moving the crossbeam downward, and allowing the pressing plates (20) to press on the peripheral area A of the metal plate to fix the metal plate; S5, blowing high-pressure fluid into the metal plates to cause the inside of the metal plates in the middle area of ​​the two metal plates that are not welded together to swell to form a cavity, thereby manufacturing a heat transfer plate; using a detection device (10) to detect whether fluid seeps out from the side of the metal plate during swelling; The detection device (10) comprises a pair of support frames (21), a pair of support plates (22), a display structure (1) mounted on the support frames (21) and the support plates (22), and a plurality of flip structures (4) fixedly connected to the display structure (1), wherein the flip structures (4) drive the display structure (1) to rotate to fit or detach from the side of the heat transfer plate, so as to detect whether fluid has leaked; the pair of support frames (21) and the pair of support plates (22) form a base (2), and the lower side of the flip structure (4) is meshedly connected to a driving structure (5) that penetrates the base (2); The upper surface of the support frame (21) is in a step shape, and the steps are arranged in sequence near the outer side as step one (211), step two (212) and step three (213); a limit rod (221) flush with step one (211) is fixedly connected to the upper side of the support plate (22); a clamping plate one (23) is rotatably connected to step two (212), and a clamping plate two (24) rotatably connected to the support plate (22) is arranged on the outer side of the limit rod (221); a pair of steps four (214) are also arranged on the outer side of the end of step one (211), and the bottom of the clamping plate two (24) is located on the upper side of step four (214) and the support plate (22); The display structure (1) comprises a display cloth (11) and a clamping member (12), wherein the clamping member (12) is used to clamp the upper side of the display cloth (11), a clamping plate (23) and a clamping plate (24) clamp the lower side of the display cloth (11), and the lower side of the clamping member (12) is rotatably connected to the flip structure (4); The flip structure (4) comprises a pair of limit members (41), a rotating member (43) and a rotating rod (44) rotatably connected between the pair of limit members (41), and a pair of transmission belts (42); the pair of transmission belts (42) are sleeved on the lower side of the rotating member (43) and the outer wall of the rotating rod (44); the upper side of the rotating member (43) is rotatably connected to the clamping member (12); the rotation of the rotating rod (44) can drive the transmission belt (42) and the rotating member (43) to rotate, thereby driving the display cloth (11) to rotate; the rotating rod (44) is meshingly connected to the driving structure (5).

2. A multi-point laser welding self-cleaning heat transfer plate production process according to claim 1, characterized in that: The limiting member (41) comprises a connecting plate (411) and a limiting plate (412); the inner side of the connecting plate (411) is rotatably connected to the rotating member (43) and the rotating rod (44), and the outer side is slidably connected to the limiting plate (412); the connecting plate (411) is fitted with the outer sides of the corresponding clamping plate 2 (24) and clamping plate 1 (23); the corresponding supporting plate (22) and step 3 (213) are provided with limiting grooves (421) matching the limiting plate (412); and the outer sides of the plurality of limiting plates (412) on the same side are fixedly connected to lifting rods (45).

3. A multi-point laser welding self-cleaning heat transfer plate production process according to claim 2, characterized in that: The driving structure (5) comprises a plurality of pairs of moving members (51), a plurality of pairs of moving members (52) located below the moving members (51), and a reversing member (53) located below the moving members (52); the reversing member (53) is meshingly connected with the moving members (52); each moving member (51) corresponds to two flipping structures (4) located on a pair of support plates (22); and each moving member (52) corresponds to two flipping structures (4) located on a pair of support frames (21).

4. A multi-point laser welding self-cleaning heat transfer plate production process according to claim 3, characterized in that: The moving member 1 (51) and the moving member 2 (52) are respectively meshed and connected to the middle parts of the rotating rods (44) on the two flip structures (4), and the movement of the moving member 1 (51) and the moving member 2 (52) can drive the corresponding pair of rotating rods (44) to rotate relative to each other, thereby driving the display cloth (11) to rotate relative to each other; any one of the support plates (22) is also provided with a gathering rod (61), one side of the gathering rod (61) is fixedly connected to the end of all the moving members 1 (51) on the support plate (22), and the other side is rotatably connected to the push plate (62).

5. A multi-point laser welding self-cleaning heat transfer plate production process according to claim 4, characterized in that: The reversing member (53) comprises a reversing rod (531) and a plurality of reversing shafts (532) corresponding to the second moving member (52); the reversing rod (531) passes through the middle of a pair of support plates (22) and extends to the support plate (22); the reversing shaft (532) is meshed and connected with the second moving member (52) and the reversing rod (531) at its upper and lower sides respectively; the reversing shaft (532) is driven to rotate by the movement of the reversing rod (531), thereby driving the second moving member (52) to move; and a driving plate (63) is rotatably connected to the upper side of the end of the reversing rod (531).

6. The multi-point laser welding self-cleaning heat transfer plate production process according to claim 2, characterized in that: The detection device (10) further comprises a positioning structure (3), the positioning structure (3) comprising a pair of fixed rods (31) fixedly connected to the upper side of the second step (212), an adjusting rod (32), a pair of rotating components (33) and a positioning plate (34) fixedly connected to the upper side of the adjusting rod (32), the rotating component (33) passing through the fixed rod (31) and fixedly connected to the end of the adjusting rod (32), the rotating component (33) rotating to drive the adjusting rod (32) and the positioning plate (34) to rotate; a stop plate (341) is fixedly connected to the end of the positioning plate (34), and an L-shaped side surface formed by the stop plate (341) and the positioning plate (34) can fit with the limit rod (221) and the outer side of the first step (211).

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