A method for integrated assembly of serpentine flat tubes

Abstract

The present invention discloses an integrated assembly and processing method for serpentine flat tubes, which places a serpentine-bent flat tube body on a rotating plate and positions it, a front portion of the rotating plate is provided with a plurality of front through slots extending forward and backward, the front through slots corresponding to the even-numbered slots of the front opening of the flat tube body, a rear portion of the rotating plate is provided with a plurality of rear through slots extending forward and backward, the rear through slots corresponding to the odd-numbered slots of the rear opening of the flat tube body; after the strip heat exchange fins to be installed are taken out from the discharge port of the feed channel, they are gradually inserted into the corresponding middle slots extending forward and backward of the middle receiving plate on the frame at the rear of the feed channel, which can automatically insert the strip heat exchange fins into the even-numbered slots or the odd-numbered slots of the flat tube body, thereby realizing automatic assembly, facilitating subsequent processing, greatly improving production efficiency, and increasing output.

Description

Technical field:

[0001] The invention relates to the technical field of heat exchanger processing equipment, and more specifically to an integrated assembling and processing method for serpentine flat tubes. Background technology:

[0002] The existing flat tube heat exchanger is generally composed of an S-shaped serpentine-coiled flat tube and a plurality of heat exchange fins;

[0003] The existing S-shaped serpentine coiled flat tube is formed with a plurality of heat exchange fin mounting grooves. When assembling, the heat exchange fins need to be manually inserted into the corresponding slots of the flat tube, and then manually tied and taken out. The manual insertion of the heat dissipation fins is inefficient and requires a lot of manual labor, which greatly reduces labor efficiency and affects production capacity, making it very unsuitable for mass production. Summary of the invention:

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a serpentine flat tube integrated assembly processing method, which can automatically insert the strip heat exchange fins into the even-numbered slots or odd-numbered slots of the flat tube body to achieve automatic assembly, which is convenient for subsequent processing, greatly improves production efficiency and increases output.

[0005] The solution of the present invention to solve the technical problem is:

[0006] A serpentine flat tube integrated assembly processing method, which comprises the following steps:

[0007] (1) placing the serpentine-bent flat tube body on a rotating plate and positioning it, the front portion of the rotating plate is provided with a plurality of front through slots extending forward and backward, the front through slots corresponding to the even-numbered slots of the front opening of the flat tube body, and the rear portion of the rotating plate is provided with a plurality of rear through slots extending forward and backward, the rear through slots corresponding to the odd-numbered slots of the rear opening of the flat tube body;

[0008] (2) After the strip heat exchange fins to be installed come out from the outlet of the feed channel, they are gradually inserted into the corresponding middle slots extending forward and backward on the middle receiving tray on the rack at the rear of the feed channel;

[0009] (3) After a strip heat exchange fin is inserted into all the middle slots of the middle receiving plate, the middle receiving plate moves horizontally so that another adjacent middle slot faces the outlet of the feed channel to receive the material. While the middle receiving plate continuously moves to receive the material, its corresponding middle slot corresponds to the corresponding guide groove on the fixed guide block at the rear of the middle receiving plate;

[0010] (4) Insert the strip heat exchange fins into the corresponding middle slots of the middle receiving tray. At this time, the middle slots correspond to the corresponding guide slots at the rear. The front push plate installed on the mobile frame provided on the frame is lowered, and all the push rods on it extend into the corresponding middle slots of the middle receiving tray and push the strip heat exchange fins therein out of the middle slots into the guide slots, and then out of the corresponding guide slots into the front slots, and then pushed into the corresponding even-numbered slots of the flat tube body;

[0011] (5) Push the material plate forward and return it to its original position, move the frame back to its original position, then return the middle material receiving tray to its original position, and repeat steps (2) and (3) to insert the strip heat exchange fins into the corresponding middle slots of the middle material receiving tray;

[0012] (6) The middle receiving plate rotates 180°, and at the same time, the rotating plate rotates 180°. At this time, the rear through slot is at the front. Repeat step (4) to insert the strip heat exchange fins from the rear through slot into the odd-numbered slots.

[0013] (7) The side limit blocks on the left and right sides of the rotating plate move relatively to press the left and right sides of the flat tube body;

[0014] (8) The moving frame moves to the top of the rotating plate, and the front push plate and the rear push plate under the moving frame descend, so that the push rods of the front push plate and the rear push plate are inserted into the corresponding rear through grooves and front through grooves, and the front push plate and the rear push plate move relative to each other, and the corresponding strip heat exchange fins are pressed together and corrected by the front and rear push rods;

[0015] (9) Press down all the strip heat exchange fins by pressing down the upper pressing block on the moving frame, so that the top surfaces of all the strip heat exchange fins are flush;

[0016] (10) All parts are returned to their original positions, and the assembled flat tube body and strip heat exchange fins are clamped between the inner side walls of the vertical parts on the left and right sides of the fixture to achieve clamping and fixing. Then, the assembly is completed after disassembly.

[0017] An assembly device used in an integrated assembly processing method for a serpentine flat tube comprises a frame, a rotary drive mechanism is fixed to the middle top surface of the rear part of the top plate of the frame, a rotary plate is fixed to the top end of the rotating shaft of the rotary drive mechanism, guide blocks are fixed to the front and rear top surfaces of the rotary plate, a plurality of front through slots extending downwardly and penetrating front and back are formed on the top surface of the front guide block, and the spacing between each two adjacent front through slots is equal, a plurality of rear through slots extending downwardly and penetrating front and back are formed on the top surface of the rear guide block, and the spacing between each two adjacent rear through slots is equal, and a vertical guide column is fixed to the top surface of the rotary plate at the inner side of the guide block at one side of each front through slot or rear through slot;

[0018] A fixed guide block is fixed on the top surface of the top plate of the frame at the front of the rotating plate, and a plurality of guide slots penetrating front and rear are formed on the top surface of the fixed guide block, and the distance between each two adjacent guide slots is equal, and the rear end of the guide slot corresponds to the front end of the corresponding front slot;

[0019] A linear module is fixed on the top surface of the top plate of the frame in front of the fixed guide block, a horizontal fixed plate is fixed on the top surface of the moving block of the linear module, a second rotary drive mechanism is fixed in the middle of the top surface of the horizontal fixed plate, a middle material receiving plate is fixed on the top surface of the rotating shaft of the second rotary drive mechanism, and a plurality of middle slots penetrating front and back are formed on the top surface of the middle material receiving plate, the distance between each two adjacent middle slots is equal, and the middle slots correspond to the guide through slots.

[0020] Furthermore, the rotary drive mechanism and the second rotary drive mechanism are both servo DD motors, rotary oil cylinders or rotary air cylinders.

[0021] Furthermore, a long through slot extending left and right is formed on the top plate of the frame at the rear of the rotary drive mechanism, and transverse guide rails are fixed on the top surfaces of the top plates of the frames on the left and right sides of the rotary drive mechanism in front of the long through slot, and the slider is inserted into the corresponding transverse guide rail, and a positioning seat is fixed on the top surface of the slider, and side limit blocks are fixed on the upper opposite wall surfaces of the two positioning seats, and the opposite wall surfaces of the two side limit blocks correspond to each other, and the side limit blocks face the upper left side or right side of the middle of the rotating plate;

[0022] A vertical plate is fixed at the rear wall surface of the sliding block, and a pull rod is movably connected to the lower part of the vertical plate through a hinge shaft. The bottom ends of the two pull rods are close to each other and movably connected to the same lifting plate through a hinge shaft. A lower support frame is fixed to the bottom surface of the top plate of the frame, and a telescopic cylinder is fixed to the bottom surface of the bottom plate of the lower support frame. The top end of the push rod of the telescopic cylinder extends out of the top surface of the bottom plate of the lower support frame and is fixed to the bottom surface of the lifting plate.

[0023] Furthermore, connecting blocks are fixed on the inner side walls at the left and right ends of the elongated through slot, and proximity switches are fixed on the connecting blocks. The sensing ends of the proximity switches correspond to the sensing parts fixed on the rear wall surface of the corresponding slider.

[0024] Furthermore, the middle feeding tray is a circular tray, and guide fixing blocks are fixed on the top surfaces of the horizontal fixing plates at the front and rear parts thereof. Arc-shaped surfaces are formed on the relative wall surfaces of the two guide fixing blocks, which are close to and matched with the outer wall of the middle feeding tray. The top surface of the guide fixing block is formed with a plurality of auxiliary guide grooves that penetrate front and back and extend downward. The spacing between each two adjacent auxiliary guide grooves is equal, and the auxiliary guide grooves correspond to the corresponding middle slots.

[0025] Furthermore, a feed rack is fixed on the top surface of the top plate of the frame in front of the front guide fixing block, and a feed channel is formed on the feed rack. The right part of the feed channel is a straight channel part extending left and right, the middle part of the feed channel is an arc-shaped guide channel part, and the rear end of the left part of the feed channel is formed with a discharge channel part extending front and back, the right end of the arc-shaped guide channel part is connected to the left end of the straight channel part, the rear end of the arc-shaped guide channel part is connected to the front end of the discharge channel part, and the front end of the discharge channel part is a discharge port, which is close to and connected to the front end of one of the auxiliary guide through grooves at the front.

[0026] Furthermore, a cover plate is fixed to the top surface of the feed rack at the discharge channel portion, the cover plate covers the discharge channel portion, and the front portion of the cover plate is tilted upward;

[0027] A plurality of air inlet connection shells are fixed on the top surface of the feed rack at the top surface of the feed channel, and the air outlet pipe openings on the air inlet connection shells face the strip heat exchange fins transported in the feed channel.

[0028] Furthermore, side guide rails extending forward and backward are fixed to the left and right parts of the top surface of the top plate of the frame, and the side sliders are inserted into the corresponding side guide rails, and the bottom ends of the left and right side plates of the movable frame are fixed to the top surfaces of the corresponding side sliders, and a side through groove extending forward and backward is formed on the top plate of the frame at the outer side of one of the side guide rails, and a rack extending forward and backward is fixed to the bottom surface of the top plate of the frame directly below the side guide rail, and a vertical connecting plate is fixed to one side wall of the corresponding side slider, and the vertical connecting plate is inserted into the side through groove, and a mobile servo motor is fixed to the lower part of the vertical connecting plate, and the end of the output shaft of the mobile servo motor extends out of the corresponding vertical connecting plate and is fixed with a driving gear, and the driving gear is meshed with the rack.

[0029] A first proximity switch is fixed to the middle of the top surface of the top plate of the frame at the right side of the side through slot, a second proximity switch is fixed to the rear of the top surface of the top plate of the frame at the right side of the side through slot, and a first sensing block is fixed to the right side wall of the rear end of the corresponding side slider, the first sensing block corresponds to the sensing ends of the first proximity switch and the second proximity switch.

[0030] Slot-type travel switches are fixed on the left and right sides of the front of the linear module, and a guide sensing block is fixed on the bottom surface of the horizontal fixed plate, and the guide sensing block corresponds to the slot-type travel switch.

[0031] A lifting cylinder is fixed to the top surface of the middle part of the top plate of the moving frame, and the bottom end of the push rod of the lifting cylinder extends out of the bottom surface of the top plate of the moving frame and is fixed to the main lifting plate; a guide rod is fixed to the top surface of the main lifting plate, and the guide rod is inserted into the vertical guide through hole formed on the top plate of the moving frame; a plurality of guide sleeves are fixed to the bottom surface of the main lifting plate; a pressing and fixing plate is provided under the main lifting plate, and a plurality of guide rods are fixed to the top surface of the pressing and fixing plate, and the guide rods are inserted in the corresponding guide sleeves; the guide sleeves and the guide rods are inserted with the same buffer spring, the top end of the buffer spring is fixed to the bottom surface of the main lifting plate, and the bottom surface of the pressing and fixing plate is fixed with an upper pressure block made of elastic rubber.

[0032] The outstanding effects of the present invention are:

[0033] Compared with the prior art, it can automatically insert the strip heat exchange fins into the even-numbered slots or odd-numbered slots of the flat tube body to achieve automatic assembly, which is convenient for subsequent processing, greatly improves production efficiency and increases output. Description of the drawings:

[0034] Figure 1 is a partial top view of the present invention;

[0035] Figure 2 It is a partial structural schematic diagram of the frame of the present invention (the front push plate and other components are omitted);

[0036] Figure 3 It is a partial bottom view of the middle receiving tray of the present invention;

[0037] Figure 4 It is a partial structural schematic diagram of the middle receiving tray of the present invention;

[0038] Figure 5 It is a partial structural schematic diagram of the discharge channel portion of the feed channel of the present invention;

[0039] Figure 6 It is a schematic diagram of the local structure of the straight channel portion of the feed channel;

[0040] Figure 7 It is a schematic diagram of the local structure of the lifting cylinder of the mobile frame;

[0041] Figure 8 yes Figure 7 Schematic diagram of the angle-changing local structure;

[0042] Fig. 9 It is a schematic diagram of the local structure when the rotating plate rotates 180 degrees;

[0043] Fig.10 It is a schematic diagram of the local structure of the fixture. Specific implementation method:

[0044] For example, see Figures 1 to 10 As shown, a serpentine flat tube integrated assembly processing method comprises the following steps:

[0045] (1) Place the serpentine-bent flat tube body 100 on the rotating plate 20 and position it. At this time, the flat tube body 100 is in an S-shaped serpentine coiled shape, and a slot is formed between each two adjacent vertical parts extending forward and backward. The slot that opens forward is the even-numbered slot 101, and the slot that opens backward is the odd-numbered slot 102. All the even-numbered slots 101 and the odd-numbered slots 102 are arranged at intervals; place the flat tube body 100 on the middle top surface of the rotating plate 20, and at the same time, the corresponding vertical guide column 24 is inserted into the corresponding even-numbered slot 101 or the odd-numbered slot 102 and close to the inner side wall of the corresponding flat tube arc portion of the flat tube body 100, that is, the vertical guide column 24 is used to limit the position;

[0046] The front through slot 231 of the guide block 23 at the front of the rotating plate 20 corresponds to the even-numbered slots 101 of the front opening of the flat tube body 100, and the rear through slot 232 of the guide block 23 at the rear of the rotating plate 20 corresponds to the odd-numbered slots 102 of the rear opening of the flat tube body 100;

[0047] (2) A feed rack 31 is fixed on the top plate of the frame 10, and a feed channel 30 is formed on the feed rack 31. The feed port of the feed channel 30 is connected to the discharge port of the processing equipment of the preceding strip heat exchange fin 200 (this processing equipment is the molding equipment of the strip heat exchange fin 200, which is a known equipment and will not be described in detail here), and the processed strip heat exchange fin 200 is transported to the feed port of the feed channel 30;

[0048] The right part of the feed channel 30 is a straight channel part extending left and right, the middle part of the feed channel 30 is an arc-shaped guide channel part, and the rear end of the left part of the feed channel 30 is formed with a discharge channel part extending front and back, and the front end of the discharge channel part is a discharge port, which is close to and communicates with the front end of one of the auxiliary guide slots 43 at the front; the auxiliary guide slot 43 corresponds to and communicates with the front end of the corresponding middle slot 41;

[0049] A plurality of air intake connection shells 80 are fixed on the top surface of the feed rack 31 at the top surface of the feed channel 30, and a plurality of air intake connection shells 80 are located above the middle of the straight channel portion, the front of the arc-shaped guide channel portion, and the front of the discharge channel portion. The air outlet pipe opening 81 on the air intake connection shell 80 is obliquely arranged, and its oblique direction faces the conveying direction required by the strip heat exchange fins 200 in the feed channel 30. An air intake connector is formed on one side wall of the air intake connection shell 80, and is connected to the air outlet end of the solenoid valve connected to the air pump through a connecting pipe. The electromagnetic valve is frequently opened and closed to realize timed intermittent blowing, and the opening time of the electromagnetic valve corresponds to the subsequent feeding into the middle slot 41 of the middle receiving tray 40. When the middle receiving tray 40 is not entered, the electromagnetic valve stops running, and the feeding channel 30 stops feeding. The operating frequency of the electromagnetic valve after opening is also based on when the strip heat exchange fins 200 enter the corresponding middle slots 41 one by one, that is, when the strip heat exchange fins 200 enter a middle slot 41, it is operated through the linear module 12. In order to carry out the operation, the middle receiving tray 40 needs to be moved to the right so that the front slot 231 facing the other middle slot 41 faces the discharge port of the feed channel 30. During the movement, the solenoid valve is closed to stop the conveying of the strip heat exchange fins 200. After the conveying is in place, the conveying is carried out again. The strip heat exchange fins 200 are blown through the air outlet 81 on the air inlet connecting shell 80 on the feed channel 30 to pass through the corresponding auxiliary guide slot 43 and enter the corresponding middle slot 41 (wherein, by adjusting the front slot 231 of the discharge channel part The air volume of the air outlet port 81 on the air inlet connection shell 80 at the upper part can control the strip heat exchange fin 200 coming out of the air outlet of the feed channel 30 to be exactly in the middle of the middle slot 41, or to the front or rear, but will not extend out of the middle slot 41). Then, the middle receiving tray 40 moves to the right by a distance, so that the outlet of the feed channel 30 faces another adjacent auxiliary guide slot 43, and the subsequent strip heat exchange fin 200 passes through the auxiliary guide slot 43 and enters the corresponding middle slot 41 at this time.

[0050] (3) When the middle receiving tray 40 continuously moves to the right to receive the material, the corresponding middle slot 41 thereof corresponds to the corresponding guide slot 51 on the fixed guide block 50 at the rear of the middle receiving tray 40;

[0051] (4) The strip heat exchange fins 200 are inserted into the corresponding middle slots 41 of the middle receiving plate 40 (the installation is completed when the strip heat exchange fins 200 are inserted into the corresponding middle slots 41 through the program control of the control host). At this time, the middle slots 41 correspond to the corresponding guide slots 51 at the rear, and the push rod of the front telescopic cylinder 69 pushes the vertical lifting plate 691 to descend along the guide slot formed in the middle of the bottom surface of the corresponding vertical pressing plate 68, so that the front push plate 61 descends, and all the push plates thereon are pushed down. The moving rod extends into the front through slot 231 corresponding to the front of the middle slot 41 of the middle receiving plate 40, and then the driving gear 95 rotates along the rack 92 by moving the servo motor 94 to move the moving frame 60 backward. At this time, the front pushing plate 61 moves backward, and the pushing rod pushes the strip heat exchange fin 200 therein to be pushed out from the middle slot 41 to the guide through slot 51, and then pushed out from the corresponding guide through slot 51 to the front through slot 231, and then pushed to the corresponding even-numbered slot 101 of the flat tube body 100;

[0052] (5) The push rod of the front telescopic cylinder 69 is retracted, the front push plate 61 is returned to its position, the movable frame 60 is returned to its position, and then the middle receiving tray 40 is returned to its position, and steps (2) and (3) are repeated, so that the strip heat exchange fins 200 are inserted into the corresponding middle slots 41 of the middle receiving tray 40;

[0053] (6) The middle feed tray 40 rotates 180°, and at the same time, the rotating plate 20 rotates 180°. At this time, the rear through slot 232 is at the front, and step (4) is repeated to insert the strip heat exchange fin 200 from the rear through slot 232 into the odd-numbered slot 102; wherein, the middle feed tray 40 rotates 180° because the strip heat exchange fin 200 also has a front-to-back direction, and the rotating plate 20 needs to rotate 180°, so the middle feed tray 40 also needs to rotate 180° to ensure that the installation direction of the strip heat exchange fin 200 is aligned;

[0054] (7) The push rod of the telescopic oil cylinder 191 is retracted, so that the upper ends of the two pull rods 171 are brought close to each other, so that the side limit blocks 70 on the left and right sides of the rotating plate 20 move relatively, and the left and right sides of the flat tube body 100 are pressed tightly for correction;

[0055] (8) Then, the movable frame 60 moves to the top of the rotating plate 20, and the front push plate 61 and the rear push plate 62 under the movable frame 60 descend, so that the push rod of the front push plate 61 and the push rod on the bottom of the rear push plate 62 are inserted into the corresponding rear through groove 232 and front through groove 231, and the push rods of the two double push rod cylinders 67 are retracted, so that the front push plate 61 and the rear push plate 62 move relative to each other, and the corresponding strip heat exchange fins 200 are pressed together and corrected by the front and rear push rods;

[0056] (9) The push rod of the lifting cylinder 63 on the movable frame 60 pushes the upper pressing block 66 downward to press all the strip heat exchange fins 200 downward, and the top surfaces of all the strip heat exchange fins 200 are flush. Then, the push rod of the lifting cylinder 63 retracts and presses downward again, generally three times.

[0057] (10) After all parts are returned to their original positions, the assembled flat tube body 100 and the strip heat exchange fin 200 are clamped between the inner side walls of the vertical parts 301 on the left and right sides of the fixture 300 to achieve clamping and fixing. The assembly can then be disassembled and completed (the distance between the inner side walls of the vertical parts 301 on the left and right sides of the fixture 300 is equal to or slightly smaller than the distance between the left and right sides of the assembled flat tube body 100 and the strip heat exchange fin 200. Since the flat tube body 100 and the strip heat exchange fin 200 have a certain amount of elastic deformation, when clamping, it is only necessary to squeeze and deform the left and right sides of the assembled flat tube body 100 and the strip heat exchange fin 200 toward the middle so that they can be clamped between the inner side walls of the vertical parts 301 on the left and right sides of the fixture 300 to complete the clamping. The loading and unloading is convenient and efficient).

[0058] All operations in this embodiment are controlled accordingly by the program in the control host, which will not be described in detail here.

[0059] The assembly equipment used in the integrated assembly processing method of a serpentine flat tube of the present embodiment includes a frame 10, a rotating drive mechanism 11 is fixed to the middle top surface of the rear part of the top plate of the frame 10, a rotating plate 20 is fixed to the top of the rotating shaft of the rotating drive mechanism 11, and a guide block 23 is fixed to the front and rear top surfaces of the rotating plate 20. The top surface of the front guide block 23 is formed with a plurality of front through grooves 231 extending downward from front to back, and the spacing between each two adjacent front through grooves 231 is equal. The front end of the front through groove 231 is opened. The opening is larger than the width between the left and right inner walls of the front through slot 231 to facilitate feeding; the top surface of the rear guide block 23 is formed with a plurality of rear through slots 232 extending downward from front to back, and the opening of the rear end of the rear through slot 232 is larger than the width between the left and right inner walls of the rear through slot 232 to facilitate feeding; the spacing between each two adjacent rear through slots 232 is equal, and a vertical guide column 24 is fixed on the top surface of the rotating plate 20 at the inner side of the guide block 23 at one side of each front through slot 231 or rear through slot 232;

[0060] A fixed guide block 50 is fixed on the top surface of the top plate of the frame 10 at the front of the rotating plate 20. A plurality of guide slots 51 are formed on the top surface of the fixed guide block 50, and the opening of the front end of the guide slot 51 is larger than the width between the left and right inner walls of the guide slot 51 to facilitate feeding. The distance between each two adjacent guide slots 51 is equal, and the rear end of the guide slot 51 corresponds to the front end of the corresponding front slot 231.

[0061] A linear module 12 is fixed on the top surface of the top plate of the frame 10 in front of the fixed guide block 50, a horizontal fixed plate 13 is fixed on the top surface of the moving block of the linear module 12, a second rotary drive mechanism 14 is fixed in the middle of the top surface of the horizontal fixed plate 13, a middle receiving tray 40 is fixed on the top surface of the rotating shaft of the second rotary drive mechanism 14, and a plurality of middle slots 41 penetrating front and back are formed on the top surface of the middle receiving tray 40, the distance between each two adjacent middle slots 41 is equal, and the middle slots 41 correspond to the guide through grooves 51;

[0062] An upper guide cover plate 400 extending backward is fixed to the left top surface of the fixed guide block 50, and the upper guide cover plate 400 partially covers the middle slot 41 facing the discharge port of the feed channel 30. It can prevent the conveyed strip heat exchange fins 200 from running out of the middle slot 41, ensuring that they can enter the middle slot 41 completely.

[0063] Furthermore, the rotary drive mechanism 11 and the second rotary drive mechanism 14 are both servo DD motors, rotary oil cylinders or rotary air cylinders, wherein the rotary oil cylinders or rotary air cylinders in this embodiment can rotate 180°.

[0064] A long through slot 15 extending left and right is formed on the top plate of the frame 10 at the rear of the rotary drive mechanism 11, and transverse guide rails 16 are fixed on the top surfaces of the top plates of the frames 10 on the left and right sides of the rotary drive mechanism 11 in front of the long through slot 15. The slider 17 is inserted into the corresponding transverse guide rail 16, and a positioning seat 18 is fixed on the top surface of the slider 17. Side limit blocks 70 are fixed on the upper opposite wall surfaces of the two positioning seats 18. The opposite wall surfaces of the two side limit blocks 70 correspond to each other, and the side limit blocks 70 face the upper left or right side of the middle of the rotating plate 20.

[0065] A vertical plate is fixed at the rear wall surface of the slider 17, and the vertical plate is inserted into the elongated through slot 15. Two connecting and fixing blocks are fixed at the middle part of the elongated through slot 15. The front and rear wall surfaces of the connecting and fixing blocks are fixed on the front and rear inner side walls of the elongated through slot 15. A transverse adjustment screw through hole is formed in the middle part of the connecting and fixing blocks. The screw rod portion of the limit bolt is screwed in the corresponding transverse adjustment screw through hole. The end of the screw rod portion of the limit bolt extends out of the outer end of the corresponding connecting and fixing block and fixes the limit block. The limit block faces one side wall of the corresponding vertical plate. A locking nut is screwed on the screw rod portion of the limit bolt. The locking nut is pressed against the side wall of the corresponding connecting and fixing block to achieve limiting. When the slider 17 moves toward the middle and presses against the limit block, limiting is achieved. By loosening the locking nut and rotating the limit bolt, the position of the limit block can be adjusted to meet the limit adjustment needs.

[0066] The lower part of the vertical plate is movably connected to a pull rod 171 through a hinge shaft. The bottom ends of the two pull rods 171 are close to each other and movably connected to the same lifting plate 172 through a hinge shaft. A lower support frame 19 is fixed to the bottom surface of the top plate of the frame 10. A telescopic cylinder 191 is fixed to the bottom surface of the bottom plate of the lower support frame 19. The top end of the push rod of the telescopic cylinder 191 extends out of the top surface of the bottom plate of the lower support frame 19 and is fixed to the bottom surface of the lifting plate 172.

[0067] Connecting blocks are fixed on the inner side walls at the left and right ends of the long through slot 15, and proximity switches 1 are fixed on the connecting blocks. The sensing end of the proximity switch 1 corresponds to the sensing part 2 fixed on the side wall of the corresponding slider 17. When the sensing end of the proximity switch 1 senses the sensing part 2, it indicates that the two sliders 17 are far away from each other.

[0068] Furthermore, the middle feeding tray 40 is a circular tray, and guide fixing blocks 42 are fixed on the top surfaces of the horizontal fixing plates 13 at the front and rear parts thereof. The relative wall surfaces of the two guide fixing blocks 42 are formed with arc-shaped surfaces, which are close to and matched with the outer wall of the middle feeding tray 40. The top surface of the guide fixing block 42 is formed with a plurality of auxiliary guide grooves 43 that penetrate front and back and extend downward. The spacing between each two adjacent auxiliary guide grooves 43 is equal, and the auxiliary guide grooves 43 correspond to the corresponding middle slots 41.

[0069] A feed rack 31 is fixed on the top surface of the top plate of the frame 10 in front of the front guide fixing block 42, and a feed channel 30 is formed on the feed rack 31. The right part of the feed channel 30 is a straight channel part extending left and right, the middle part of the feed channel 30 is an arc-shaped guide channel part, and the rear end of the left part of the feed channel 30 is formed with a discharge channel part extending front and back, the right end of the arc-shaped guide channel part is connected to the left end of the straight channel part, the rear end of the arc-shaped guide channel part is connected to the front end of the discharge channel part, and the front end of the discharge channel part is a discharge port, which is close to and connected to the front end of one of the auxiliary guide slots 43 at the front.

[0070] Furthermore, a covering plate 33 is fixed to the top surface of the feed rack 31 at the discharge channel portion, the covering plate 33 covers the discharge channel portion, and the front portion of the covering plate 33 is upwardly tilted; it can ensure that the transported strip heat exchange fins 200 are transported backward along the bottom of the covering plate 33.

[0071] Furthermore, a plurality of air inlet connection shells 80 are fixed on the top surface of the feed rack 31 at the top surface of the feed channel 30 , and the air outlet pipe openings 81 on the air inlet connection shells 80 face the strip heat exchange fins 200 transported in the feed channel 30 .

[0072] The left and right parts of the top surface of the top plate of the frame 10 are fixed with side guide rails 90 extending forward and backward, and the side sliders 91 are inserted into the corresponding side guide rails 90. The bottom ends of the left and right side plates of the movable frame body 60 are fixed on the top surfaces of the corresponding side sliders 91. A side through groove extending forward and backward is formed on the top plate of the frame 10 at the outer side of one of the side guide rails 90, and a rack 92 extending forward and backward is fixed to the bottom surface of the top plate of the frame 10 directly below this side guide rail 90. A vertical connecting plate 93 is fixed on one side wall of the corresponding side slider 91, and the vertical connecting plate 93 is inserted into the side through groove. A mobile servo motor 94 is fixed to the lower part of the vertical connecting plate, and the end of the output shaft of the mobile servo motor 94 extends out of the corresponding vertical connecting plate and is fixed with a driving gear 95, which meshes with the rack 92.

[0073] A first proximity switch 3 is fixed to the middle of the top surface of the top plate of the frame 10 at the right side of the side through slot, a second proximity switch 4 is fixed to the rear of the top surface of the top plate of the frame 10 at the right side of the side through slot, and a first sensing block 911 is fixed to the right side wall of the rear end of the corresponding side slider 91, and the first sensing block 911 corresponds to the sensing ends of the first proximity switch 3 and the second proximity switch 4. When the first sensing block 911 is sensed by the first proximity switch 3 or the second proximity switch 4, the control host can know the position of the mobile frame 60 fixed on the side slider 91 used.

[0074] Furthermore, the left and right sides of the front of the linear module 12 are both fixed with slot-type travel switches 121, and the bottom surface of the horizontal fixed plate 13 is fixed with a guide sensing block 130, which corresponds to the slot-type travel switch 121. Thus, the position of the horizontal fixed plate 13 can be understood, and a slot-type travel switch 121 can be installed on the left side of the slot-type travel switch 121 on the right side. This switch is used as a reference switch, that is, before each operation of the horizontal fixed plate 13, the guide sensing block 130 needs to be placed in this switch to achieve reference positioning.

[0075] Further, a lifting cylinder 63 is fixed to the top surface of the middle part of the top plate of the mobile frame 60, the bottom end of the push rod of the lifting cylinder 63 extends out of the bottom surface of the top plate of the mobile frame 60 and is fixed to the main lifting plate 64, the top surface of the main lifting plate 64 is fixed with a guide rod, the guide rod is inserted into the vertical guide through hole formed on the top plate of the mobile frame 60, a plurality of guide sleeves are fixed to the bottom surface of the main lifting plate 64, a pressing and fixing plate 65 is provided below the main lifting plate 64, a plurality of guide rods are fixed to the top surface of the pressing and fixing plate 65, the guide rods are inserted into the corresponding guide sleeves, the guide sleeves and the guide rods are inserted with the same buffer spring, the top end of the buffer spring is fixed to the bottom surface of the main lifting plate 64, the bottom end of the buffer spring is fixed to the top surface of the pressing and fixing plate 65, and an upper pressing block 66 made of elastic rubber is fixed to the bottom surface of the pressing and fixing plate 65. The buffer spring can ensure that the downward pressure will not be excessive.

[0076] A double push rod cylinder 67 extending forward and backward is fixed to the bottom surface of the top plate of the movable frame 60 on the left and right sides of the main lifting plate 64, and the ends of the two front push rods of the two double push rod cylinders 67 are fixed to the same vertical pressure plate 68, and the ends of the two rear rods are fixed to the same vertical pressure plate 68; the retracted position of the push rod of the double push rod cylinder 67 is limited, and the distance between the two vertical pressure plates 68 when they are in the retracted state is consistent with the length of the strip heat exchange fins 200, which will not cause the strip heat exchange fins 200 to be over-compressed and deformed.

[0077] Furthermore, a telescopic cylinder 69 is fixed on the outer wall surface of the two vertical pressing plates 68, and a vertical lifting plate 691 is fixed on the push rod of the telescopic cylinder 69. The vertical lifting plate 691 is inserted into the guide groove formed in the middle of the bottom surface of the corresponding vertical pressing plate 68, and the left and right side walls of the vertical lifting plate 691 are closely attached to the inner side walls of the corresponding guide groove;

[0078] A front pushing plate 61 and a rear pushing plate 62 are respectively fixed to the inner side walls of the two vertical lifting plates 691 .

[0079] This embodiment can ensure that the flat tube body 100 and the strip heat exchange fins 200 are automatically assembled, greatly improving the assembly effect, greatly reducing the manual labor, and improving the processing effect and processing efficiency.

[0080] Finally, the above implementation modes are only used to illustrate the present invention, and are not intended to limit the present invention. Ordinary technicians in the relevant technical field may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The scope of patent protection of the present invention should be defined by the claims.

Claims

1. A method for integrated assembly of a serpentine flat tube, characterized in that: It includes the following steps: (1) placing the serpentine-bent flat tube body (100) on the rotating plate (20) and positioning it, the front portion of the rotating plate (20) being provided with a plurality of front through slots (231) extending forward and backward, the front through slots (231) corresponding to the even-numbered slots (101) of the front opening of the flat tube body (100), and the rear portion of the rotating plate (20) being provided with a plurality of rear through slots (232) extending forward and backward, the rear through slots (232) corresponding to the odd-numbered slots (102) of the rear opening of the flat tube body (100); (2) After the strip heat exchange fins (200) to be installed are taken out from the discharge port of the feed channel (30), they are gradually inserted into the corresponding middle slots (41) extending forward and backward on the middle receiving tray (40) on the frame (10) at the rear of the feed channel (30); (3) After a strip heat exchange fin (200) is inserted into all the middle slots (41) of the middle receiving plate (40), the middle receiving plate (40) moves horizontally so that another adjacent middle slot (41) faces the discharge port of the feed channel (30) to receive the material. While the middle receiving plate (40) continuously moves to receive the material, its corresponding middle slot (41) corresponds to the corresponding guide groove (51) on the fixed guide block (50) at the rear of the middle receiving plate (40); (4) The strip heat exchange fins (200) are inserted into the corresponding middle slots (41) of the middle receiving plate (40). At this time, the middle slots (41) correspond to the corresponding guide slots (51) at the rear. The front push plate (61) installed on the movable frame (60) provided on the frame (10) is lowered, and all the push rods thereon extend into the corresponding middle slots (41) of the middle receiving plate (40) and push the strip heat exchange fins (200) therein out of the middle slots (41) into the guide slots (51), and then out of the corresponding guide slots (51) into the front slots (231), and then pushed into the corresponding even-numbered slots (101) of the flat tube body (100); (5) The forward push plate (61) returns to its original position, the movable frame (60) returns to its original position, and then the middle receiving tray (40) returns to its original position, and steps (2) and (3) are repeated, so that the strip heat exchange fins (200) are inserted into the corresponding middle slots (41) of the middle receiving tray (40); (6) The middle receiving plate (40) rotates 180°, and at the same time, the rotating plate (20) rotates 180°. At this time, the rear through slot (232) is at the front. Repeat step (4) to insert the strip heat exchange fin (200) from the rear through slot (232) into the odd-numbered slot (102). (7) The side limit blocks (70) on the left and right sides of the rotating plate (20) move relatively to press the left and right sides of the flat tube body (100); (8) The movable frame (60) moves to the top of the rotating plate (20), and the front push plate (61) and the rear push plate (62) below the movable frame (60) descend, so that the push rod of the front push plate (61) and the push rod of the rear push plate (62) are inserted into the corresponding rear through groove (232) and the front through groove (231), and the front push plate (61) and the rear push plate (62) move relative to each other, and the corresponding strip heat exchange fins (200) are pressed together and corrected by the front and rear push rods; (9) Pressing down all the strip-shaped heat exchange fins (200) by the upper pressing block (66) on the movable frame (60), so that the top surfaces of all the strip-shaped heat exchange fins (200) are flush; (10) All parts are returned to their original positions, and the assembled flat tube body (100) and the strip heat exchange fins (200) are clamped between the inner side walls of the vertical parts on the left and right sides of the fixture (300) to achieve clamping and fixing, and then the assembly is completed after disassembly; A rotary drive mechanism (11) is fixed to the top surface of the middle part of the rear part of the top plate of the frame (10), a rotary plate (20) is fixed to the top end of the rotating shaft of the rotary drive mechanism (11), guide blocks (23) are fixed to the front and rear top surfaces of the rotary plate (20), a plurality of front through slots (231) extending downwardly and penetrating from front to back are formed on the top surface of the front guide block (23), and the spacing between each two adjacent front through slots (231) is equal, a plurality of rear through slots (232) extending downwardly and penetrating from front to back are formed on the top surface of the rear guide block (23), and the spacing between each two adjacent rear through slots (232) is equal, and a vertical guide column (24) is fixed to the top surface of the rotary plate (20) at the inner side of the guide block (23) at one side of each front through slot (231) or rear through slot (232); A fixed guide block (50) is fixed on the top surface of the top plate of the frame (10) at the front of the rotating plate (20), and a plurality of guide slots (51) penetrating front and rear are formed on the top surface of the fixed guide block (50), the distance between each two adjacent guide slots (51) is equal, and the rear end of the guide slot (51) corresponds to the front end of the corresponding front slot (231); A linear module (12) is fixed on the top surface of the top plate of the frame (10) in front of the fixed guide block (50), a horizontal fixed plate (13) is fixed on the top surface of the moving block of the linear module (12), a second rotary drive mechanism (14) is fixed in the middle of the top surface of the horizontal fixed plate (13), a middle material receiving plate (40) is fixed on the top surface of the rotating shaft of the second rotary drive mechanism (14), and a plurality of middle slots (41) penetrating front and rear are formed on the top surface of the middle material receiving plate (40), the distance between each two adjacent middle slots (41) is equal, and the middle slots (41) correspond to the guide through groove (51); An upper guide cover plate (400) extending backward is fixed to the left top surface of the fixed guide block (50), and the upper guide cover plate (400) partially covers the middle slot (41) facing the discharge port of the feed channel (30).

2. The serpentine flat tube integrated assembly processing method according to claim 1, characterized in that: The strip-shaped heat exchange fins (200) in the feed channel (30) are transported by blowing air through the air outlet pipe (81) on the upper air inlet connection shell (80).

3. The serpentine flat tube integrated assembly processing method according to claim 1, characterized in that: The rotary drive mechanism (11) and the second rotary drive mechanism (14) are both servo DD motors, rotary oil cylinders or rotary air cylinders.

4. The serpentine flat tube integrated assembly processing method according to claim 1, characterized in that: A long through slot (15) extending leftward and rightward is formed on the top plate of the frame (10) at the rear of the rotary drive mechanism (11); transverse guide rails (16) are fixed on the top surfaces of the top plates of the frames (10) on the left and right sides of the rotary drive mechanism (11) in front of the long through slot (15); a slider (17) is inserted into the corresponding transverse guide rail (16); a positioning seat (18) is fixed on the top surface of the slider (17); side limit blocks (70) are fixed on the upper opposite wall surfaces of the two positioning seats (18); the opposite wall surfaces of the two side limit blocks (70) correspond to each other; and the side limit blocks (70) face the upper left side or right side of the middle part of the rotary plate (20); A vertical plate is fixed on the rear wall surface of the slider (17), and a pull rod (171) is movably connected to the lower part of the vertical plate through a hinge shaft. The bottom ends of the two pull rods (171) are close to each other and movably connected to the same lifting plate (172) through a hinge shaft. A lower support frame (19) is fixed to the bottom surface of the top plate of the frame (10), and a telescopic cylinder (191) is fixed to the bottom surface of the bottom plate of the lower support frame (19). The top end of the push rod of the telescopic cylinder (191) extends out of the top surface of the bottom plate of the lower support frame (19) and is fixed to the bottom surface of the lifting plate (172).

5. The serpentine flat tube integrated assembly processing method according to claim 4, characterized in that: A connection block is fixed on the inner side wall at the left and right ends of the elongated through slot (15), and a proximity switch (1) is fixed on the connection block. The sensing end of the proximity switch (1) corresponds to the sensing part (2) fixed on the rear wall surface of the corresponding slider (17).

6. The serpentine flat tube integrated assembly processing method according to claim 1, characterized in that: The middle receiving plate (40) is a circular plate, and guide fixing blocks (42) are fixed on the top surfaces of the horizontal fixing plates (13) at the front and rear parts thereof. The opposite wall surfaces of the two guide fixing blocks (42) are formed with arc-shaped surfaces, which are close to and matched with the outer wall of the middle receiving plate (40). The top surface of the guide fixing block (42) is formed with a plurality of auxiliary guide grooves (43) that penetrate front and back and extend downward, and the spacing between each two adjacent auxiliary guide grooves (43) is equal, and the auxiliary guide grooves (43) correspond to the corresponding middle slots (41).

7. The integrated assembly method of a serpentine flat tube according to claim 6, characterized in that: A feed frame (31) is fixed on the top surface of the top plate of the frame (10) in front of the front guide fixing block (42), and a feed channel (30) is formed on the feed frame (31). The right part of the feed channel (30) is a straight channel part extending left and right, the middle part of the feed channel (30) is an arc-shaped guide channel part, and the rear end of the left part of the feed channel (30) is formed with a discharge channel part extending front and back. The right end of the arc-shaped guide channel part is connected to the left end of the straight channel part, and the rear end of the arc-shaped guide channel part is connected to the front end of the discharge channel part. The front end of the discharge channel part is a discharge port, which is close to and connected to the front end of one of the auxiliary guide slots (43) at the front.

8. The integrated assembling method of a serpentine flat tube according to claim 7, characterized in that: A covering plate (33) is fixed to the top surface of the feed rack (31) at the discharge channel portion, the covering plate (33) covers the discharge channel portion, and the front portion of the covering plate (33) is tilted upward; A plurality of air intake connection shells (80) are fixed on the top surface of the feed rack (31) at the top surface of the feed channel (30), and the air outlet pipes (81) on the air intake connection shells (80) face the strip-shaped heat exchange fins (200) transported in the feed channel (30).

9. The serpentine flat tube integrated assembly processing method according to claim 1, characterized in that: Side guide rails (90) extending forward and backward are fixed to the left and right parts of the top surface of the top plate of the frame (10), and the side sliders (91) are inserted into the corresponding side guide rails (90). The bottom ends of the left and right side plates of the movable frame (60) are fixed to the top surfaces of the corresponding side sliders (91). A side through groove extending forward and backward is formed on the top plate of the frame (10) at the outer side of one of the side guide rails (90). A rack (92) extending forward and backward is fixed to the bottom surface of the top plate of the frame (10) directly below the side guide rail (90). A vertical connecting plate (93) is fixed to one side wall of the corresponding side slider (91), and the vertical connecting plate (93) is inserted into the side through groove. A moving servo motor (94) is fixed to the lower part of the vertical connecting plate. The end of the output shaft of the moving servo motor (94) extends out of the corresponding vertical connecting plate and is fixed with a driving gear (95), and the driving gear (95) is meshed with the rack (92).

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