A pinch-type fin evaporator tube expander and method of use

Abstract

The application discloses a kind of clamping type fin evaporator pipe expanding device and its using method, the device includes workbench and is installed on the clamping press fastener of workbench, clamping press fastener is provided with positioning clamp, the clamping mould is vertically slidably arranged on the workbench, the top of the clamping mould is provided with piece mechanism, multifunctional positioning member is provided in piece mechanism, the device is positioned after quick preloading of fin using the supporting shaft on piece mechanism, multifunctional positioning member overturns, at this time piece mechanism is positioned using lock shaft, automatically inserts all fins to mould base, completes quick fin insertion, simultaneously, prepositioning is carried out using positioning clamp during clamping process, mould base can be shrunk to workbench after clamping is completed to realize automatic demoulding, so that quick, accurate piece is inserted during the whole clamping process, clamping is safely and stably, and automatic demoulding is realized after clamping shaping.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of evaporator processing, in particular to a clamping type fin evaporator pipe expanding device and a method thereof. BACKGROUND

[0002] The clamping type fin evaporator is a structure in which the coil is bent into two pieces and clamped and fixed on both sides of the fin. During assembly, a clamping groove is formed on both sides of the fin, and the pipe body is squeezed into the clamping groove to achieve assembly.

[0003] However, during processing, the fins are usually inserted into the mold to arrange multiple fins in a preset shape, and then the coil is clamped on both sides of the mold for extrusion. However, during actual operation, the operator needs to insert the fins one by one after each processing is completed. The entire mold is deep, which results in slow insertion accuracy and speed, affecting the processing speed. During the clamping process, the operator needs to hold the coil in a preset position before starting the extrusion piece for extrusion. The hand-holding fixing accuracy is poor, and there is a risk of crushing the operator during the extrusion process. Therefore, a clamping type fin evaporator pipe expanding device and a method thereof are provided to solve the above problems. SUMMARY

[0004] The present application aims to provide a clamping type fin evaporator pipe expanding device and a method thereof to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a clamping type fin evaporator pipe expanding device, comprising a workbench and a clamping and fixing piece mounted on the workbench, one side of the workbench is provided with a power cylinder, a clamping mold is vertically slidably arranged on the workbench, a workpiece is arranged on the clamping mold, the workpiece comprises fins inserted into the clamping mold and a coil wrapped around both sides of the fins, the clamping and fixing piece comprises a pressing mold arranged on both sides of the clamping mold for extruding the coil into the fins, and a positioning clamp is slidably arranged on the pressing mold for limiting the coil to be in a preset position before clamping.

[0006] The top of the clamping mold is provided with a fin mounting mechanism, the fin mounting mechanism comprises a fin mounting seat slidably arranged on the top of the clamping mold, a fin inserting seat is movably arranged at the bottom of the fin mounting seat, and a multifunctional positioning piece is mounted at both ends of the fin inserting seat, the multifunctional positioning piece can be selectively rotated to one side or the bottom of the fin inserting seat.

[0007] When the multifunctional positioning piece is rotated to the bottom of the fin inserting seat, it is used for height positioning when the fin is inserted into the fin inserting seat.

[0008] When the multifunctional positioning piece rotates to the side of the plug-in piece seat, the plurality of fins are fixed so that the plug-in piece seat synchronously pushes the plurality of fins into the clamping mold.

[0009] Preferably, the middle part of the workbench is provided with an upper and lower through movable slot, the clamping mold comprises a mold seat slidingly arranged in the movable slot, a support rod is fixedly installed at the bottom of the movable slot, a supporting plate is fixedly arranged at the bottom of the support rod, a first air cylinder is fixedly installed at the bottom of the supporting plate, a carrier seat is detachably installed at the bottom of the mold seat through bolts, a sliding sleeve is fixedly arranged on the side of the carrier seat, the sliding sleeve is slidingly connected on the support rod, and the output end of the first air cylinder is fixedly connected with the carrier seat, so that after the workpiece is clamped and fixed, the first air cylinder can pull the mold seat to move downward, so that the fins are separated from the mold seat.

[0010] Preferably, a plurality of assembly insertion grooves are arranged on the mold seat, the fins are movably inserted into the assembly insertion grooves, and a clamping groove is arranged on the side of the fin, a locking table is arranged at the opening of the fin, and the coil pipe passes through the locking table and enters the clamping groove.

[0011] Preferably, a guide opening is arranged at the top of the assembly insertion groove, a positioning groove is arranged on the mold seat and opposite to the guide opening, a fixed insertion groove is arranged in the plug-in piece seat and opposite to the guide opening, a damping piece is arranged in the fixed insertion groove, so that the fins can be kept hovering when inserted into the fixed insertion groove, a through groove is arranged in the middle of the fixed insertion groove and matched with the mold seat, process racks are fixedly arranged on both sides of the assembly insertion groove, a fifth air cylinder is fixedly arranged in the process rack, the output end of the fifth air cylinder is connected with the multifunctional positioning piece, a guide rail is fixedly arranged on the plug-in piece seat and movably inserted into the process rack, and the friction force between the guide rail and the process rack is greater than the gravity of the plug-in piece seat loaded with fins.

[0012] Preferably, sliding grooves are arranged at both ends of the plug-in piece seat, the multifunctional positioning piece comprises a sliding block slidingly arranged in the sliding groove, a memory spring is fixedly connected at the inner top of the sliding groove, the output end of the fifth air cylinder is fixedly connected with the sliding block, push rods are movably hinged on both sides of the sliding block, bosses are integrally formed on both sides of the plug-in piece seat, swing arms are rotatably arranged on the bosses, and lock shafts and supporting shafts are fixedly arranged at both ends of the swing arms.

[0013] Preferably, the bottom end of the push rod is movably hinged with the swing arm; the fifth air cylinder is retracted to drive the swing arm to rotate, so that the lock shaft and the supporting shaft rotate in opposite directions, the top of the lock shaft abuts against the locking table or the bottom of the supporting shaft abuts against the plug-in piece seat.

[0014] Preferably, the clamping presser further comprises fixed seats fixedly arranged on both sides of the movable groove, the die is arranged inside the fixed seat, and the outside of the fixed seat is fixedly arranged with a second air cylinder, the output end of the second air cylinder is fixedly connected with the die, and the opposite sides of the two groups of dies are respectively arranged with material pushing protrusions.

[0015] Preferably, the two ends of the die are both provided with receiving grooves for receiving the positioning clamps, the back of the fixed seat is fixedly arranged with a third air cylinder, the output end of the third air cylinder is fixedly arranged with a balance bar, and the two ends of the balance bar are respectively fixedly installed with sliding shafts at the two ends of the positioning clamps, and the sliding shafts penetrate through the fixed seat and the receiving groove.

[0016] Preferably, the top of the fixed seat is fixedly arranged with a track and a fourth air cylinder, and the two sides of the sheet mounting seat are both fixedly arranged with sliding support arms, the sliding support arms are slidingly connected on the track, and the output end of the fourth air cylinder is fixedly connected with the sliding support arm.

[0017] A use method of a clamping type fin evaporator pipe expanding device, comprising the following steps:

[0018] S1, recording a film, manually inserting fins through the sheet mounting seat and into the sheet inserting seat, and the bottom of the fin abutting against the top of the supporting shaft to form a uniform height of the bottom;

[0019] S2, inserting a sheet, the fourth air cylinder is started, the sheet mounting seat is moved to the top of the die seat, the fifth air cylinder is stretched, so that the sheet inserting seat drives the fin to be inserted into the assembly insertion groove, and then the sheet inserting seat is reset;

[0020] S3, clamping and positioning, the third air cylinder is stretched, so that the positioning clamp moves to the middle part and pushes the pipe to the side of the locking table;

[0021] S4, clamping and forming, the second air cylinder is started, and the two groups of dies move to the middle part to press the pipe into the clamping groove;

[0022] S5, material removal, the first air cylinder is started, the die seat is pulled to move downward, so that the fin is separated from the die seat, and the workpiece assembly is completed.

[0023] The technical effects and advantages of the present application are as follows:

[0024] 1. The clamping type fin evaporator pipe expanding device, by designing the sheet mounting mechanism, the operator preinstalls the fin in the sheet inserting seat through the sheet mounting seat, then utilizes the designed multifunctional positioning member, positions the height of the fin through the supporting shaft during sheet mounting, after the sheet mounting is completed, the fifth air cylinder drives the swing arm to overturn, so that the supporting shaft is withdrawn from the bottom of the fixed insertion groove, the locking shaft enters the locking table, then drives the sheet inserting seat to insert the fin into the die seat, and then the sheet inserting seat is reset, so that the preinsertion of the sheet is completed, the sheet is finally inserted into the die seat accurately, and the fin can be preinstalled during the clamping process, so that the sheet mounting efficiency is improved.

[0025] 2. The tube expanding device for the clip-on fin evaporator, by improving the existing clip-on fixing part, the positioning clamps are added, in use, the coil is held on the outer surface of the mold base, and the coil is pressed on the preset position of the mold base surface by using both hands from the middle part downward, then the third cylinder is retracted, the positioning clamps on both sides are driven to move to the middle part through the sliding shaft, the coil is limited at the opening of the clamping groove from both ends by the positioning clamps, then the operator removes both hands, at this time, the second cylinder is started, the mold is moved to the middle part, the coil is pressed into the clamping groove by the material lifting protrusion on the mold, so that the clip-on success rate is improved, and the safety of the operator during the clip-on process is reduced.

[0026] 3. The tube expanding device for the clip-on fin evaporator, by designing the clip-on mold, when the fin is inserted, the fin can be quickly inserted into the mold base, after the clip-on is completed, the first cylinder is retracted, the mold base is retracted downward along the movable groove, so that the mold base is removed from the fin, at this time, the fin and the coil are left on the workbench, the demolding is completed, the operator takes away the finished workpiece, then the first cylinder is stretched, the mold base is moved upward to reset, so that the automatic demolding is realized. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall outer surface of the present application;

[0028] Figure 2 It is a schematic diagram of the overall bottom of the present application;

[0029] Figure 3 It is a schematic diagram of the outer surface of the clip-on mold of the present application;

[0030] Figure 4 It is a schematic diagram of the outer surface structure of the clip-on fixing part of the present application;

[0031] Figure 5 It is a schematic diagram of the top structure of the fixed seat of the present application;

[0032] Figure 6 It is a schematic diagram of the outer surface structure of the component of the present application;

[0033] Figure 7 It is a schematic diagram of the fin filling in the mold base by the fin inserting seat of the present application;

[0034] Figure 8 It is a schematic diagram of the side structure of the fin inserting seat of the present application;

[0035] Figure 9 It is a schematic diagram of the outer surface structure of the fin inserting seat and the fin filling seat of the present application;

[0036] Figure 10 It is a schematic diagram of the action of the lock shaft on the fin connection of the present application;

[0037] Figure 11 This is an exploded view of the end structure of the insert holder of the present invention.

[0038] In the diagram: 1. Workbench; 12. Movable slot;

[0039] 2. Clamping mold; 21. Support plate; 22. First cylinder; 23. Support rod; 24. Carrier; 25. Sliding sleeve; 26. Mold base; 27. Assembly slot; 28. Guide opening;

[0040] 3. Clamping and pressing component; 31. Fixing base; 32. Second cylinder; 33. Press mold; 34. Ejector protrusion; 35. Sliding shaft; 36. Positioning clamp; 37. Storage groove; 38. Balance bar; 39. Third cylinder;

[0041] 4. Plate loading mechanism; 41. Plate holder; 42. Plate inserter; 43. Multifunctional positioning component; 431. Slider; 432. Push rod; 433. Swing arm; 434. Locking shaft; 435. Support shaft; 44. Sliding support arm; 45. Rail; 46. Fourth cylinder; 47. Process rack; 48. Fifth cylinder; 49. Guide rail; 410. Slide groove; 411. Fixing slot; 412. Through groove; 413. Positioning groove; 414. Boss; 415. Memory spring;

[0042] 5. Power cylinder;

[0043] 6. Workpiece; 61. Fin; 62. Coil; 63. Slot; 64. Locking platform. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Example 1: The present invention provides, as follows Figures 1-11 The clamping finned evaporator tube expansion device shown includes a workbench 1 and a clamping clamping device 3 installed on the workbench 1. A power cylinder 5 is provided on one side of the workbench 1. A clamping mold 2 is vertically slidably arranged on the workbench 1. A workpiece 6 is provided on the clamping mold 2. The workpiece 6 includes a fin 61 inserted into the clamping mold 2 and a coil 62 surrounding both sides of the fin 61. The clamping clamping device 3 includes a pressing mold 33 arranged on both sides of the clamping mold 2 for squeezing the coil 62 into the fin 61. A positioning clamp 36 is slidably arranged on the pressing mold 33 for limiting the coil 62 to a preset position before clamping.

[0046] The top of the clamping mold 2 is provided with a clamping mechanism 4, which includes a clamping seat 41 slidingly arranged on the top of the clamping mold 2, and a plug-in seat 42 movably arranged at the bottom of the clamping seat 41, and a multifunctional positioning piece 43 mounted at both ends of the plug-in seat 42, which can be selectively rotated to one side or the bottom of the plug-in seat 42.

[0047] When the multifunctional positioning piece 43 is rotated to the bottom of the plug-in seat 42, it is used for height positioning when the fin 61 is inserted into the plug-in seat 42.

[0048] When the multifunctional positioning piece 43 is rotated to one side of the plug-in seat 42, it is used for fixing a plurality of fins 61, so that the plug-in seat 42 synchronously pushes the plurality of fins 61 into the clamping mold 2.

[0049] The middle of the workbench 1 is provided with an active slot 12 penetrating up and down, and the clamping mold 2 includes a mold seat 26 slidingly arranged in the active slot 12, a supporting rod 23 fixedly installed at the bottom of the active slot 12, a supporting plate 21 fixedly arranged at the bottom of the supporting rod 23, a first air cylinder 22 fixedly installed at the bottom of the supporting plate 21, a load seat 24 detachably installed at the bottom of the mold seat 26 through bolts, a sliding sleeve 25 fixedly arranged at the side of the load seat 24, the sliding sleeve 25 being slidingly connected to the supporting rod 23, and the output end of the first air cylinder 22 being fixedly connected to the load seat 24, so that after the workpiece 6 is clamped and fixed, the first air cylinder 22 can pull the mold seat 26 to move downward, thereby separating the fin 61 from the mold seat 26.

[0050] A plurality of assembly insertion grooves 27 are formed in the mold seat 26, the fin 61 is movably inserted into the assembly insertion groove 27, a clamping groove 63 is formed in the side of the fin 61, a locking table 64 is arranged at the opening of the fin 61, and the coil pipe 62 passes through the locking table 64 and enters the clamping groove 63.

[0051] A guide opening 28 is formed at the top of the assembly insertion groove 27, a positioning groove 413 is formed on the clamping seat 41 opposite to the guide opening 28, a fixed insertion groove 411 is formed in the plug-in seat 42 opposite to the guide opening 28, and a damping piece is arranged in the fixed insertion groove 411, so that the fin 61 inserted into the fixed insertion groove 411 can be kept hovering, a through groove 412 adapted to the mold seat 26 is formed in the middle of the fixed insertion groove 411, a process rack 47 is fixedly arranged at both sides of the clamping seat 41, a fifth air cylinder 48 is fixedly arranged in the process rack 47, the output end of the fifth air cylinder 48 is connected to the multifunctional positioning piece 43, a guide rail 49 is fixedly arranged on the plug-in seat 42, the guide rail 49 is movably inserted into the process rack 47, and the friction force between the guide rail 49 and the process rack 47 is greater than the gravity of the plug-in seat 42 loaded with the fin 61.

[0052] The slide groove 410 is arranged at both ends of the plug seat 42, the multifunctional positioning piece 43 comprises a sliding block 431 which is slidingly arranged in the slide groove 410, and the inner top of the slide groove 410 is fixedly connected with a memory spring 415, the output end of the fifth cylinder 48 is fixedly connected with the sliding block 431, the two sides of the sliding block 431 are movably hinged with a push rod 432, the two sides of the plug seat 42 are integrally formed with a boss 414, the boss 414 is rotatably provided with a swing arm 433, the two ends of the swing arm 433 are fixedly provided with a lock shaft 434 and a supporting shaft 435 respectively, and the bottom end of the push rod 432 is movably hinged with the swing arm 433; so that the fifth cylinder 48 is driven to retract to rotate the swing arm 433, so that the lock shaft 434 and the supporting shaft 435 rotate in opposite directions, and the lock shaft 434 abuts against the top of the lock table 64 or the supporting shaft 435 abuts against the bottom of the plug seat 42.

[0053] The whole multifunctional positioning piece 43 has multiple stroke states;

[0054] I. The film loading stage, the plug seat 42 is located at the bottom of the film loading seat 41, the supporting shaft 435 is located at the bottom of the fixed insertion groove 411, and the lock shaft 434 is located outside the boss 414, at this time the memory spring 315 is in a compressed state;

[0055] II. The first stage of inserting the film, the memory spring 315 is stretched to the maximum state, so that the supporting shaft 435 is rotated from the bottom of the fixed insertion groove 411 to the side of the fixed insertion groove 411, and the lock shaft 434 is rotated to the side of the boss 414;

[0056] III. The second stage of inserting the film, the fifth cylinder 48 continues to drive the sliding block 431 to move downward, at this time the friction force of the guide rail 49 makes the plug seat 42 not naturally slide downward, at this time the sliding block 431 is separated from the bottom end of the memory spring 315, the sliding block 431 drives the swing arm 433 to continue to rotate through the push rod 432, so that the supporting shaft 435 moves to one side of the plug seat 42, and the lock shaft 434 enters the top of the boss 414;

[0057] IV. The first stage of separation, under the action of the friction force of the guide rail 49, the plug seat 42 does not move upward at the first time, but the sliding block 431 slides upward along the slide groove to contact the memory spring 415, at this time the lock shaft 434 is rotated to one side of the boss 414, and the supporting shaft 435 is rotated to the bottom of the plug seat 42 and located at one side of the fixed insertion groove 411;

[0058] V. The second stage of separation, the sliding block 431 moves upward through the memory spring 415 against the gravity of the plug seat 42 and the friction force of the guide rail 49, at this time the memory spring 415 does not contract, so that the supporting shaft 435 and the lock shaft 434 remain in a separated state and move upward with the plug seat 42;

[0059] Six, reset stage, the plug seat 42 moves to the bottom of the film mounting seat 41, the fifth cylinder 48 continues to shrink, so that the memory spring 415 is compressed, at this time the shaft 435 is turned to the bottom of the fixed slot 411, the lock shaft 434 is turned to the outside of the boss 414.

[0060] The clamping and pressing part 3 further comprises a fixed seat 31 fixedly arranged on both sides of the movable groove 12, a pressing die 33 arranged inside the fixed seat 31, a second cylinder 32 fixedly arranged outside the fixed seat 31, an output end of the second cylinder 32 fixedly connected with the pressing die 33, and a top material protrusion 34 arranged on the opposite side of each of the two groups of pressing dies 33.

[0061] The two ends of the pressing die 33 are each provided with a receiving groove 37 for receiving a positioning clamp 36, a third cylinder 39 fixedly arranged on the back of the fixed seat 31, an output end of the third cylinder 39 fixedly provided with a balance bar 38, and a sliding shaft 35 fixedly installed at the two ends of the balance bar 38 and the two ends of the positioning clamp 36, the sliding shaft 35 penetrating through the fixed seat 31 and the receiving groove 37.

[0062] The top of the fixed seat 31 is fixedly provided with a track 45 and a fourth cylinder 46, and the two sides of the film mounting seat 41 are each fixedly provided with a sliding support arm 44, the sliding support arm 44 being slidingly connected to the track 45, and an output end of the fourth cylinder 46 being fixedly connected with the sliding support arm 44.

[0063] Working principle; when the device is in use, the film mounting mechanism 4 is located on one side of the top of the clamping and pressing part 3, and the fifth cylinder 48 is in a contracted state, at this time the plug seat 42 is located at the bottom of the film mounting seat 41, and the shaft 435 is located at the bottom of the plug seat 42, at this time the operator inserts the fin 61 from the positioning groove 413 at the top of the film mounting seat 41 downward, and inserts the bottom of the fin 61 into the plug seat 42 and abuts against the shaft 435, at this time there is a large friction force between the plug seat 42 and the fin 61, and the gap of the positioning groove 413 is set to be large, so that there is no frictional resistance between the fin 61 and the film mounting seat 41, after all the fins 61 are assembled, the fourth cylinder 46 is started to make the output end contract, and the entire film mounting mechanism 4 is dragged to slide on the top of the fixed seat 31 to above the mold seat 26;

[0064] At this time, the fifth cylinder 48 is started, and the output end is stretched downward. At this time, the slider 431 slides downward along the sliding groove 410 under the action of the memory spring 415. The insert seat 42 does not slide downward under the action of the memory spring 415 and the guide rail 49. At this time, the slider 431 pushes the swing arm 433 to rotate on the boss 414 through the push rod 432 on both sides, so that the supporting shaft 435 rotates from the bottom of the fixed slot 411 to one side of the fixed slot 411, and the locking shaft 434 rotates from one side to one side of the boss 414, which is on the side of the locking table 64. At this time, the memory spring 415 is fully stretched.

[0065] At this time, the friction between the fin 61 and the assembly slot 27 is much greater than the friction between the fin 61 and the fixed slot 411. At this time, the fifth cylinder 48 is retracted. Under the action of the friction between the guide rail 49 and the process rack 47, the insert seat 42 does not move upward at first, but the slider 431 slides upward a small distance along the sliding groove 410 first, so that the top end of the swing arm 433 turns outward, so that the supporting shaft 435 moves to the lower side of the insert seat 42 and is on the side of the fixed slot 411, not under the fixed slot 411. At the same time, the locking shaft 434 moves out of the clamping groove 63 to one side, and the slider 431 is in contact with the bottom of the memory spring 415. Then the fifth cylinder 48 continues to retract. At this time, the memory spring 415 is not compressed. Because it has a large elastic force, the memory spring 415 keeps the insert seat 42 moving upward. At this time, the insert seat 42 moves away from the outer surface of the mold base 26, and at the same time, the fin 61 is left in the assembly slot 27, so as to complete the automatic insertion of the fin. Then the insert seat 42 continues to move upward to tightly fit the insert seat 41, so that the slider 431 slides upward in the sliding groove 410, so that the memory spring 415 is compressed. At this time, the supporting shaft 435 rotates inward to tightly fit the bottom of the fixed slot 411. At the same time, the operator performs the next fin 61 filling, waiting for the next fin insertion operation.

[0066] At this time, another operator will hold the coil 62 outside the mold base 26, and use both hands to press the coil 62 on the surface of the mold base 26 at the preset position from the middle to the bottom, and then the third cylinder 39 is retracted, the positioning clamps 36 on both sides are driven to move to the middle by the sliding shaft 35, and the coil 62 is limited at the opening of the clamping groove 63 from both ends by the positioning clamps 36, then the operator removes his hands, at this time the second cylinder 32 is started, the mold pressing 33 moves to the middle, the coil 62 is pressed into the clamping groove 63 by the material ejecting protrusion 34 on the mold pressing 33, then the second cylinder 32 drives the mold pressing 33 to reset, and then the third cylinder 39 drives the positioning clamps 36 to reset, so as to complete the clamping assembly of the coil 62 and the fin 61;

[0067] At this time, the first cylinder 22 is started, the output end is retracted, the mold base 26 is retracted downward along the movable groove 12, the mold base 26 is separated from the fin 61, the fin 61 and the coil 62 are left on the workbench 1, the demolding is completed, the operator takes away the completed clamped workpiece 6, then the first cylinder 22 is extended, the mold base 26 is moved upward to reset, and waits for the second clamping operation.

[0068] Embodiment two, the embodiment provides a clamping type fin evaporator tube expanding device as shown in the use method, comprising the following steps: Figures 1 to 11

[0069] S1, recording, using manual to insert the fin 61 into the sheet seat 41 and the sheet seat 42, and the bottom of the fin 61 abuts against the top of the supporting shaft 435, forming a uniform height at the bottom;

[0070] S2, inserting sheet, the fourth cylinder 46 is started, the sheet seat 41 moves to the top of the mold base 26, the fifth cylinder 48 is extended, so that the sheet seat 42 drives the fin 61 to be inserted into the assembly insertion groove 27, and then the sheet seat 42 is reset;

[0071] S3, clamping positioning, the third cylinder 39 is extended, so that the positioning clamps 36 move to the middle and push the coil to the side of the locking table 64;

[0072] S4, clamping forming, the second cylinder 32 is started, the two groups of mold pressings 33 move to the middle and press the coil 62 into the clamping groove 63;

[0073] S5, material removal, the first cylinder 22 is started, the mold base 26 is pulled downward to separate the fin 61 from the mold base 26, and the workpiece 6 assembly is completed.

[0074] ​Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A clamping-type finned evaporator tube expansion device, comprising a worktable (1) and clamping clamps (3) mounted on the worktable (1), characterized in that, A power cylinder (5) is provided on one side of the workbench (1). A clamping mold (2) is vertically slidably provided on the workbench (1). A workpiece (6) is provided on the clamping mold (2). The workpiece (6) includes a fin (61) inserted into the clamping mold (2) and a coil (62) surrounding both sides of the fin (61). The clamping clamping device (3) includes a pressure mold (33) provided on both sides of the clamping mold (2) for squeezing the coil (62) into the fin (61). A positioning clamp (36) is slidably provided on the pressure mold (33) for limiting the coil (62) to a preset position before clamping. The clamping mold (2) is provided with a loading mechanism (4) at the top. The loading mechanism (4) includes a loading seat (41) slidably disposed at the top of the clamping mold (2). A loading seat (42) is movably disposed at the bottom of the loading seat (41). A multi-functional positioning component (43) is installed at both ends of the loading seat (42). The multi-functional positioning component (43) can be selectively rotated to one side or the bottom of the loading seat (42). When the multi-functional positioning member (43) is rotated to the bottom of the insert seat (42), it is used for height positioning when the fin (61) is inserted into the insert seat (42); When the multifunctional positioning member (43) rotates to one side of the insert seat (42), it is used to fix multiple fins (61) so that the insert seat (42) pushes multiple fins (61) into the clamping mold (2) simultaneously.

2. The clamping finned evaporator tube expansion device according to claim 1, characterized in that, The workbench (1) has a vertically penetrating movable groove (12) in the middle. The clamping mold (2) includes a mold base (26) slidably disposed in the movable groove (12). A support rod (23) is fixedly installed at the bottom of the movable groove (12). A support plate (21) is fixedly disposed at the bottom of the support rod (23). A first cylinder (22) is fixedly installed at the bottom of the support plate (21). A carrier (24) is detachably installed at the bottom of the mold base (26) by bolts. A sliding sleeve (25) is fixedly disposed on the side of the carrier (24). The sliding sleeve (25) is slidably connected to the support rod (23). The output end of the first cylinder (22) is fixedly connected to the carrier (24) so ​​that after the workpiece (6) is clamped and fixed, the first cylinder (22) can pull the mold base (26) downward to separate the fin (61) from the mold base (26).

3. The clamping finned evaporator tube expansion device according to claim 2, characterized in that, The mold base (26) is provided with multiple assembly slots (27), the fin (61) is movably inserted into the assembly slot (27), and the side of the fin (61) is provided with a slot (63). A locking platform (64) is provided at the opening of the fin (61), and the coil (62) is squeezed through the locking platform (64) and enters the slot (63).

4. The clamping finned evaporator tube expansion device according to claim 3, characterized in that, The top of the assembly slot (27) is provided with a guide opening (28), and the mounting base (41) is provided with a positioning groove (413) facing the guide opening (28). The insert base (42) is provided with a fixing slot (411) facing the guide opening (28), and a damping plate is provided inside the fixing slot (411) so that the fin (61) can remain suspended when inserted into the fixing slot (411). The middle of the fixing slot (411) is provided with a through groove adapted to the mold base (26). (412) Both sides of the mounting base (41) are fixedly provided with process racks (47), and a fifth cylinder (48) is fixedly provided in the process rack (47). The output end of the fifth cylinder (48) is connected to the multi-functional positioning component (43). A guide rail (49) is fixedly provided on the insert base (42). The guide rail (49) is movably inserted into the process rack (47), and the friction between the guide rail (49) and the process rack (47) is greater than the weight of the insert base (42) loaded with fins (61).

5. The clamping finned evaporator tube expansion device according to claim 4, characterized in that, The insert base (42) has a sliding groove (410) at both ends. The multi-functional positioning component (43) includes a slider (431) that is slidably disposed in the sliding groove (410). A memory spring (415) is fixedly connected to the inner top of the sliding groove (410). The output end of the fifth cylinder (48) is fixedly connected to the slider (431). Push rods (432) are movably hinged on both sides of the slider (431). A boss (414) is integrally formed on both sides of the insert base (42). A swing arm (433) is rotatably disposed on the boss (414). A locking shaft (434) and a supporting shaft (435) are fixedly disposed at both ends of the swing arm (433).

6. The clamping finned evaporator tube expansion device according to claim 5, characterized in that, The bottom end of the push rod (432) is movably hinged to the swing arm (433) so that the fifth cylinder (48) retracts to drive the swing arm (433) to rotate, thereby causing the locking shaft (434) and the support shaft (435) to rotate in opposite directions, so that the locking shaft (434) abuts against the top of the locking platform (64) or the support shaft (435) abuts against the bottom of the insert seat (42).

7. The clamping finned evaporator tube expansion device according to claim 2, characterized in that, The clamping and pressing component (3) also includes a fixed seat (31) fixedly disposed on both sides of the movable groove (12). The pressing mold (33) is disposed inside the fixed seat (31). A second cylinder (32) is fixedly disposed on the outside of the fixed seat (31). The output end of the second cylinder (32) is fixedly connected to the pressing mold (33). Ejector protrusions (34) are respectively disposed on the opposite side of the two sets of pressing molds (33).

8. The clamping finned evaporator tube expansion device according to claim 7, characterized in that, Both ends of the mold (33) are provided with storage slots (37) for storing the positioning clamp (36). A third cylinder (39) is fixedly installed on the back of the fixed base (31). A balance bar (38) is fixedly installed at the output end of the third cylinder (39). Sliding shafts (35) are fixedly installed at both ends of the balance bar (38) and the two ends of the positioning clamp (36). The sliding shafts (35) pass through the fixed base (31) and the storage slots (37).

9. A clamping finned evaporator tube expansion device according to claim 8, characterized in that, The top of the fixed base (31) is fixedly provided with a track (45) and a fourth cylinder (46). Both sides of the plate holder (41) are fixedly provided with sliding arms (44). The sliding arms (44) are slidably connected to the track (45). The output end of the fourth cylinder (46) is fixedly connected to the sliding arms (44).

10. A method of using a clamp-on finned evaporator tube expansion device, as described in any one of claims 1-9, characterized in that, Includes the following steps: S1, recording: the fins (61) are manually inserted through the mounting base (41) and into the insert base (42), and the bottom of the fins (61) abuts against the top of the support shaft (435) to form a uniform bottom height; S2, insert the piece, the fourth cylinder (46) starts, the piece holder (41) moves to the top of the mold base (26), the fifth cylinder (48) extends, so that the piece holder (42) drives the fin (61) to insert into the assembly slot (27), and then the piece holder (42) resets; S3, clamping and positioning, the third cylinder (39) extends, causing the positioning clamp (36) to move towards the center, pushing the coil to the side of the locking platform (64); S4. Clamping and forming: the second cylinder (32) is activated, and the two sets of pressure molds (33) move towards the center to press the coil (62) into the slot (63). S5, unloading: the first cylinder (22) is started, pulling the mold base (26) downward to separate the fins (61) from the mold base (26) and complete the assembly of the workpiece (6).

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