Synchronous assembly device and method for inner and outer orifice plates of evaporator

Abstract

The present application discloses a synchronous assembly device and method for inner and outer orifice plates of an evaporator. The synchronous assembly device comprises an assembly rack, an orifice plate storage device, an orifice plate assembly device, and a telescopic jacking device. Several outer orifice plates are placed in the orifice plate storage device, and the inner end surface of each outer orifice plate is provided with several inner orifice plates arranged side by side. The inner end surface of the outer orifice plate is provided with a positioning member, which penetrates the inner orifice plates along the axis of the outer orifice plate. The orifice plate assembly device is used to move the outer orifice plates to the end of the cylinder for assembly. The end of the telescopic jacking device is provided with an expansion device, which penetrates the through holes of the outer orifice plates and the mounting holes of the inner orifice plates. Through the expansion and contraction of the telescopic jacking device and the expansion and tightening of the expansion device, the inner orifice plates are evenly spaced and distributed one by one within the cylinder. The present application improves the assembly efficiency and quality of the inner and outer orifice plates of the evaporator.

Description

Technical Field

[0001] The present application relates to the field of evaporator assembly, and in particular to a synchronous assembly device and method for inner and outer orifice plates of an evaporator. Background Art

[0002] The evaporator is a heat exchange device mainly used for cooling and heating fluids. Its main components include a cylinder, orifice plates at both ends of the cylinder, and several heat exchange tubes. Several heat exchange tubes are inserted into the through holes between the orifice plates at both ends, and the various components of the evaporator are connected by welding.

[0003] In the related art, during the assembly process of a large evaporator, multiple internal orifice plates are installed inside the evaporator cylinder, and then an external orifice plate is installed at the end of the cylinder to improve the overall structural strength of the evaporator and at the same time increase the support force for the heat exchange tube. Currently, manual assembly is mostly used, and the assembly accuracy is difficult to control. Since it is necessary to ensure that the through holes of the external orifice plate and the mounting holes of the internal orifice plate are aligned with each other, the assembly takes a long time, resulting in low assembly efficiency, so there is still room for improvement. Summary of the Invention

[0004] In order to improve the assembly efficiency and assembly quality of the inner and outer orifice plates of an evaporator, the present application provides a synchronous assembly device and assembly method for the inner and outer orifice plates of an evaporator.

[0005] The present application provides a synchronous assembly device and method for inner and outer orifice plates of an evaporator, which adopts the following technical solutions:

[0006] A synchronous assembly device for inner and outer orifice plates of an evaporator, comprising:

[0007] An assembly rack, the assembly rack being used to horizontally place the cylinder to be assembled;

[0008] An orifice plate storage device is provided for placing a plurality of upright external orifice plates, wherein the through holes of the plurality of external orifice plates are aligned with each other, and the axis of the external orifice plates is parallel to the axis of the cylinder; a plurality of internal orifice plates are arranged at the inner end surface of each of the external orifice plates, wherein the plurality of internal orifice plates are arranged side by side and coaxially with the external orifice plates, the mounting holes of the internal orifice plates are aligned with the through holes of the external orifice plates, and the inner end surface of the external orifice plates is provided with a positioning member, wherein the positioning member passes through the plurality of internal orifice plates along the axis direction of the external orifice plates;

[0009] An orifice plate assembly device, wherein the orifice plate assembly device is used to grab the external orifice plate in the orifice plate storage device and move the external orifice plate to the end of the cylinder for assembly. When the external orifice plate is assembled to the end of the cylinder, a plurality of the internal orifice plates are assembled inside the cylinder;

[0010] A telescopic jacking device moves synchronously with the orifice plate assembly device. A tightening device is provided at the end of the telescopic jacking device. The telescopic jacking device is used to penetrate the through hole of the external orifice plate and the mounting holes of several internal orifice plates. When the tightening device is stretched out to the four sides, the tightening device is pressed against the inner wall of the mounting hole of the internal orifice plate; through the telescopic operation of the telescopic jacking device and the tightening operation of the tightening device, the spacing between the several internal orifice plates is distributed in the cylinder.

[0011] By adopting the above technical solution, the assembly frame supports and horizontally positions the cylinder, and the orifice plate storage device collectively positions the multiple external orifice plates, so that each external orifice plate is in an upright state, and the through holes of the multiple external orifice plates are in a mutually aligned state, so as to unify the relative position of the through holes of each external orifice plate. At the same time, positioning parts are installed on the inner end faces of the external orifice plates, and the multiple internal orifice plates are positioned to maintain the coaxiality between the external orifice plates and the internal orifice plates. After completing the installation steps of the external orifice plates, the multiple internal orifice plates are also loaded into the cylinder at the same time, and then the telescopic function of the telescopic jacking device and the tightening function of the tightening device are utilized to distribute the multiple internal orifice plates one by one in the cylinder, thereby achieving the purpose of synchronous installation of the internal and external orifice plates, which is beneficial to improving the installation efficiency and installation quality of the internal and external orifice plates, so as to smoothly complete the subsequent pipe threading and assembly steps of the heat exchange tubes of the evaporator.

[0012] Preferably, the synchronous assembly device for the inner and outer orifice plates of the evaporator also includes two horizontal guide frames, which are used to guide the movement of the orifice plate assembly device; the two horizontal guide frames are respectively placed at both ends of the assembly frame, and the length direction of the horizontal guide frames is perpendicular to the axial direction of the cylinder, each of the horizontal guide frames corresponds to one orifice plate assembly device, and each orifice plate assembly device corresponds to one telescopic jacking pipe device; the orifice plate storage devices are respectively placed on both sides of the assembly frame, and the orifice plate assembly devices on the two horizontal guide frames cooperate with the telescopic jacking pipe device to synchronously perform the assembly steps of the external orifice plate and the internal orifice plate.

[0013] By adopting the above technical solution, the two orifice plate assembly devices slide on the two horizontal guide frames respectively, and the orifice plate assembly devices of the two horizontal guide frames cooperate with the telescopic jacking device to simultaneously complete the assembly of the external orifice plates at both ends of the cylinder and the internal orifice plates inside the cylinder, which is beneficial to improving the orifice plate assembly efficiency and can shorten the telescopic length of the telescopic jacking device, which is beneficial to improving the structural compactness of the telescopic jacking device and the orifice plate assembly device.

[0014] Preferably, the expansion device includes an inflation component and a plurality of independent air bags, the inflation component is used to inflate and deflate the plurality of air bags, the plurality of air bags are distributed side by side along the extension and contraction direction of the telescopic jacking tube, and the plurality of air bags correspond to the plurality of internal orifice plates one by one; when the internal orifice plates are installed, the plurality of air bags are respectively located in the mounting holes of the corresponding internal orifice plates, and the plurality of air bags are inflated by the inflation component, and the air bags expand and press against the inner walls of the corresponding mounting holes, and the telescopic jacking tube device drives the plurality of air bags and the plurality of internal orifice plates to move synchronously, and when one of the internal orifice plates reaches a predetermined position, the air bag corresponding to the internal orifice plate deflates and releases the pressing effect on the mounting holes of the internal orifice plates, and the telescopic jacking tube device extends and drives the remaining internal orifice plates to move, and the telescopic jacking tube device continues to extend and the plurality of air bags deflate one by one, so that the plurality of internal orifice plates are distributed at intervals in the cylinder.

[0015] By adopting the above technical solution, several airbags simultaneously press against the mounting holes of multiple internal orifice plates, so that the multiple internal orifice plates can move as a whole with the telescopic jacking device. Since each airbag can be inflated and deflated independently, after the internal orifice plate reaches the specified position, the corresponding airbag is deflated alone, releasing the expansion effect on the mounting holes of the internal orifice plate, so that the internal orifice plate remains in the specified position, and the remaining internal orifice plates still move with the telescopic jacking device, and then the air in the remaining airbags is released one by one, and the internal orifice plates are put into place one by one. There is no need for the telescopic jacking device to move the internal orifice plates by continuously telescoping back and forth, which is beneficial to improving the assembly efficiency of the internal orifice plates.

[0016] Preferably, the orifice plate storage device includes a base, a conveyor belt mechanism arranged on the base and a plurality of positioning frames, and the positioning frames limit the external orifice plate in an upright state; the conveying direction of the conveyor belt mechanism is parallel to the axis direction of the cylinder, and the plurality of positioning frames are distributed on the conveying surface of the conveyor belt mechanism along the conveying direction of the conveyor belt mechanism.

[0017] By adopting the above technical solution, the positioning frame positions the external orifice plate, so that the external orifice plate remains upright, and then driven by the conveyor belt mechanism, the external orifice plate is continuously conveyed to the orifice plate assembly device, thereby continuously performing the evaporator assembly work, which is conducive to further improving the evaporator assembly efficiency.

[0018] Preferably, the conveying surface of the conveyor belt mechanism is provided with a positioning block, the bottom of the external orifice plate is recessed with a positioning groove, and the positioning block is snap-fitted with the positioning groove.

[0019] By adopting the above technical solution, the external orifice plate is marked with the positioning groove. When the positioning block is engaged with the positioning groove, it can ensure that the through holes of each external orifice plate remain aligned, which is beneficial to improving the accuracy of the evaporator components.

[0020] Preferably, the orifice plate assembly device includes an electromagnetic chuck and a three-axis moving mechanism for driving the electromagnetic chuck to move. The electromagnetic chuck grabs the external orifice plate by magnetic attraction and fixation, and the three-axis moving mechanism is used to drive the electromagnetic chuck to move so as to transfer the external orifice plate to the end of the cylinder for assembly.

[0021] Preferably, the three-axis moving mechanism includes a base connected to the horizontal guide frame for transverse sliding, a slide connected to the base for longitudinal sliding, and a vertical slide vertically arranged on the slide, the electromagnetic suction cup is vertically slidably connected to the vertical slide, the horizontal guide frame is provided with a transverse driving member for driving the base to move transversely, the base is provided with a longitudinal driving member for driving the slide to move longitudinally, and the vertical slide is provided with a vertical driving member for driving the slide to slide vertically.

[0022] Preferably, a transverse driving mechanism is provided on the slide seat, the transverse driving mechanism is connected to a vertical guide rail in a transverse sliding manner, the vertical guide rail is connected to a slider in a vertical sliding manner, the telescopic jacking device is connected to the slider, the transverse driving mechanism is used to drive the vertical guide rail to move transversely, and the vertical guide rail is provided with a vertical driving mechanism for driving the slider to move vertically.

[0023] By adopting the above technical solution, the external orifice plate is grasped by magnetic fixation using an electromagnetic chuck, which can reduce the displacement of the external orifice plate during the grasping process, and under the drive of the three-axis moving mechanism, the adjustment of the XYZ coordinate axis direction is achieved, which is beneficial to improving the assembly accuracy and efficiency of the external orifice plate. Through the setting of the horizontal drive mechanism and the vertical drive mechanism, the horizontal and vertical adjustment purposes of the telescopic jacking device are achieved, so that the position of the telescopic jacking device can be adjusted according to the position of the through hole of the external orifice plate, so that the telescopic jacking device can smoothly pass through the through hole of the external orifice plate and the mounting hole of the internal orifice plate.

[0024] A synchronous assembly method for inner and outer orifice plates of an evaporator, using an evaporator inner and outer orifice plates synchronous assembly device, includes the following steps:

[0025] S1: Place the cylinder flat on the assembly rack, fix the positioning piece on the inner end surface of each external orifice plate, and assemble several internal orifice plates side by side on the inner end surface of the external orifice plates through the positioning piece, and then place several external orifice plates side by side in an upright state on the orifice plate storage device;

[0026] S2: The orifice plate assembly device grabs the external orifice plate at the orifice plate storage device to move the external orifice plate to the end of the cylinder for assembly. The telescopic jacking device penetrates the through hole of the external orifice plate and the mounting holes of several internal orifice plates, and is stretched to all sides by the expansion device to fix the several internal orifice plates at the end of the telescopic jacking device. Through the telescopic operation of the telescopic jacking device and the expansion operation of the expansion device, the several internal orifice plates are moved one by one at equal intervals to the specified positions in the cylinder, thereby completing the synchronous assembly steps of the internal orifice plates and the external orifice plates.

[0027] By adopting the above technical solution, the telescopic function of the telescopic jacking device and the expansion function of the expansion device are utilized to distribute a number of internal orifice plates one by one at equal intervals in the cylinder, thereby achieving the purpose of synchronous installation of the inner and outer orifice plates, which is beneficial to improving the installation efficiency and installation quality of the internal and external orifice plates, so as to smoothly complete the subsequent pipe threading and assembly steps of the evaporator's heat exchange tubes.

[0028] Preferably, in S2, after the orifice plate assembly device grabs the external orifice plate, the telescopic jacking device is first started to make the telescopic jacking device pass through the through hole of the external orifice plate and the mounting holes of several internal orifice plates, and then the expansion device is started, and the expansion device is pressed against the inner walls of the mounting holes of several internal orifice plates to stabilize the internal orifice plates, and then the external orifice plate and the internal orifice plate are moved together to the end of the cylinder through the orifice plate assembly device for assembly.

[0029] By adopting the above technical solution, the expansion device at the end of the telescopic jacking device plays a role in stabilizing the internal orifice plate during the movement of the orifice plate assembly device, which is beneficial to reducing the situation where the internal orifice plate falls off from the positioning piece during the movement of the orifice plate assembly device; the expansion device at the end of the telescopic jacking device plays a role in driving the internal orifice plate to move during the internal orifice plate assembly step, which facilitates the accurate installation of the internal orifice plate.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. The assembly frame supports and horizontally positions the cylinder, and the orifice plate storage device collectively positions the multiple external orifice plates so that each external orifice plate is in an upright state and the through holes of the multiple external orifice plates are aligned with each other to unify the relative position of the through holes of each external orifice plate. At the same time, positioning pieces are installed on the inner end faces of the external orifice plates, and the multiple internal orifice plates are positioned to maintain the coaxiality between the external orifice plates and the internal orifice plates. After completing the installation steps of the external orifice plates, the multiple internal orifice plates are also installed into the cylinder at the same time. Then, the telescopic function of the telescopic jacking device and the expansion function of the expansion device are used to distribute the spacing between the multiple internal orifice plates in the cylinder, thereby achieving the purpose of synchronous installation of the internal and external orifice plates, which is conducive to improving the installation efficiency and installation quality of the internal and external orifice plates.

[0032] 2. By using several air bags to individually tighten the mounting holes of multiple internal orifice plates, after the internal orifice plates reach the designated position, the corresponding air bags are deflated individually, releasing the tightening effect on the mounting holes of the internal orifice plates, so that the internal orifice plates remain in the designated position, while the remaining internal orifice plates continue to move with the telescopic jacking device. The air in the remaining air bags is then released one by one, and the internal orifice plates are put into place one by one. There is no need for the telescopic jacking device to move the internal orifice plates by constantly retracting and retracting, which is beneficial to improving the assembly efficiency of the internal orifice plates.

[0033] 3. The expansion device at the end of the telescopic jacking device plays a role in stabilizing the internal orifice plate during the movement of the orifice plate assembly device, which is beneficial to reduce the situation where the internal orifice plate falls off from the positioning piece during the movement of the orifice plate assembly device; the expansion device at the end of the telescopic jacking device plays a role in driving the internal orifice plate to move during the internal orifice plate assembly step, which facilitates the accurate installation of the internal orifice plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the overall structure of a synchronous assembly device for inner and outer orifice plates of an evaporator according to an embodiment of the present application.

[0035] Figure 2 It is a structural schematic diagram of an orifice plate storage device in an evaporator inner and outer orifice plate synchronous assembly device according to an embodiment of the present application.

[0036] Figure 3 This is a structural schematic diagram of an orifice plate assembly device in a synchronous assembly device for inner and outer orifice plates of an evaporator according to an embodiment of the present application.

[0037] Figure 4 This is a structural schematic diagram of the cooperation between the orifice plate assembly device and the telescopic jacking pipe device in a synchronous assembly device for inner and outer orifice plates of an evaporator in an embodiment of the present application.

[0038] Figure 5 It is a planar schematic diagram of a telescopic jacking pipe device in a synchronous assembly device for inner and outer orifice plates of an evaporator according to an embodiment of the present application when it is extended into the cylinder.

[0039] Figure 6 It is a planar schematic diagram of a telescopic jacking device and an expansion device in a synchronous assembly device for inner and outer orifice plates of an evaporator according to an embodiment of the present application, when they cooperate to transport multiple internal orifice plates.

[0040] Explanation of the accompanying drawings: 1. Cylinder; 2. Assembly frame; 21. Base frame; 22. Roller frame; 3. External orifice plate; 31. Through hole; 32. Positioning groove; 33. Positioning piece; 4. Orifice plate storage device; 41. Base; 42. Conveyor belt mechanism; 43. Positioning frame; 44. Support plate; 45. Positioning block; 5. Orifice plate assembly device; 51. Base; 52. Slide; 53. Vertical slide; 54. Electromagnetic suction cup; 6. Telescopic jacking device; 61. Horizontal drive mechanism; 62. Bottom plate; 63. Vertical guide rail; 64. Slider; 65. Expansion device; 66. Vertical drive mechanism; 7. Horizontal guide frame; 8. Internal orifice plate; 81. Mounting hole. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-6 This application is described in further detail.

[0042] The embodiment of the present application discloses a synchronous assembly device for inner and outer orifice plates of an evaporator, referring to Figure 1 A synchronous assembly device for inner and outer orifice plates of an evaporator includes an assembly frame 2, two horizontal guide frames 7, an orifice plate storage device 4, an orifice plate assembly device 5 and a telescopic jacking device 6.

[0043] Reference Figure 1 In this embodiment, the assembly frame 2 includes a base frame 21 and two roller frames 22 slidably connected to a base 51. Each roller frame 22 has two rollers, one on each side of the assembly frame 2. The cylinder 1 is horizontally placed on the rollers of the two roller frames 22 to ensure the horizontality of the cylinder 1. The axis of the cylinder 1 is aligned with the length of the assembly frame 2. In addition, the two roller frames 22 are driven by independent screw drive mechanisms, allowing the two roller frames 22 to slide on the base frame 21 to accommodate cylinders 1 of different lengths. In addition, the synchronous and codirectional movement of the two roller frames 22 can also achieve the overall movement of the cylinder 1.

[0044] The two horizontal guide frames 7 are fixed to both ends of the base frame 21, and the length direction of the horizontal guide frames 7 is perpendicular to the axis direction of the cylinder 1. Figure 1 The horizontal guide frame 7 at the right end of the base frame 21 is hidden. In this embodiment, the length direction of the base frame 21 is the longitudinal direction, and the extension direction of the horizontal guide frame 7 is the transverse direction.

[0045] Reference Figure 1 and Figure 2In this embodiment, the orifice plate storage device 4 is placed on both sides of the assembly frame 2. This embodiment hides the orifice plate storage device 4 on one side of the assembly frame 2. Several external orifice plates 3 are placed upright on the orifice plate storage device 4. Specifically, the orifice plate storage device 4 includes a base 41, a conveyor belt mechanism 42 installed on the base 41, and several positioning frames 43, wherein the conveyor belt mechanism 42 is a sprocket chain linkage mechanism, and several support plates 44 are installed between the two chains. The several support plates 44 are distributed along the conveying direction of the chain, so that the several positioning frames 43 are distributed along the conveying direction of the conveyor belt mechanism 42. Each support plate 44 corresponds to a group of positioning frames 43, and the external orifice plate 3 is limited by engaging the bottom of the external orifice plate 3 with the slot at the upper end of the positioning frame 43, so that the external orifice plate 3 is in an upright state. In addition, the conveying direction of the conveyor belt mechanism 42 is parallel to the axial direction of the cylinder 1, so as to convey the external orifice plate 3 toward the horizontal guide frame 7. In this embodiment, the conveying surface of the conveyor belt mechanism 42 is provided with a plurality of positioning blocks 45, each of which is fixed in the middle of the surface of the plurality of support plates 44. A positioning groove 32 is recessed in the bottom of the external orifice plate 3, and the external orifice plate 3 is marked with the positioning groove 32. When the positioning blocks 45 engage with the positioning groove 32, the through holes 31 of the plurality of external orifice plates 3 are aligned with each other, and the axis of the external orifice plates 3 is parallel to the axis of the cylinder 1. This helps improve the precision of the evaporator components.

[0046] Reference Figure 3 In this embodiment, a plurality of internal orifice plates 8 are arranged on the inner end surface of each external orifice plate 3. The plurality of internal orifice plates 8 are arranged side by side and coaxially with the external orifice plate 3. A positioning member 33 is provided on the inner end surface of the external orifice plate 3. The positioning member 33 penetrates the plurality of internal orifice plates 8 along the axial direction of the external orifice plate 3. The positioning member 33 is prismatic, and a mounting groove that matches the cross-section of the positioning member 33 is penetrated through the middle of the internal orifice plate 8. The positioning column is used to position the plurality of internal orifice plates 8 and maintain the coaxial arrangement between the external orifice plates 3 and the internal orifice plates 8. The plurality of mounting holes 81 of the plurality of internal orifice plates 8 are aligned one by one with the plurality of through holes 31 of the external orifice plate 3. When the external orifice plate 3 is assembled to the end of the cylinder 1, the plurality of internal orifice plates 8 are also simultaneously installed into the cylinder 1, and the outer walls of the internal orifice plates 8 are in contact with the inner wall of the cylinder 1.

[0047] Reference Figure 3 and Figure 4In this embodiment, there are two orifice plate assembly devices 5, which are respectively placed at two horizontal guide frames 7. Specifically, the orifice plate assembly device 5 includes an electromagnetic suction cup 54 and a three-axis moving mechanism for driving the electromagnetic suction cup 54 to move. Specifically, the three-axis moving mechanism includes a base 51 that is laterally slidably connected to the horizontal guide frame 7, a slide 52 that is longitudinally slidably connected to the base 51, and a vertical slide 53 that is vertically arranged on the slide 52. The electromagnetic suction cup 54 is vertically slidably connected to the vertical slide 53. The horizontal guide frame 7 is equipped with a horizontal driving member for driving the base 51 to move laterally, the base 51 is equipped with a longitudinal driving member for driving the slide 52 to move longitudinally, and the vertical slide 53 is equipped with a vertical driving member for driving the slide 52 to slide vertically. Among them, the horizontal driving member, the longitudinal driving member and the vertical driving member all adopt a universal screw transmission mechanism. The three-axis moving mechanism is used to achieve the purpose of adjusting the position of the electromagnetic suction cup 54 in the three directions of horizontal, longitudinal and vertical.

[0048] The electromagnetic suction cup 54 grabs the external orifice plate 3 by magnetic attraction. The front end surface of the electromagnetic suction cup 54 is in close contact with the outer end surface of the external orifice plate 3, which can reduce the displacement of the external orifice plate 3 during the grabbing process and maintain the verticality of the external orifice plate 3.

[0049] Reference Figure 1 and Figure 4 A tightening device 65 is provided at the end of the telescopic jacking device 6. The telescopic jacking device 6 is used to penetrate the through hole 31 of the external orifice plate 3 and the mounting holes 81 of the internal orifice plates 8. When the tightening device 65 is stretched out to the four sides, the tightening device 65 is pressed against the inner wall of the mounting hole 81 of the internal orifice plate 8; through the telescopic operation of the telescopic jacking device 6 and the tightening operation of the tightening device 65, the spacing of the internal orifice plates 8 on the positioning member 33 is distributed at the preset position in the cylinder 1, so as to achieve the purpose of synchronous installation of the inner and outer orifice plates, which is beneficial to improve the installation efficiency and installation quality of the internal orifice plate 8 and the external orifice plate 3.

[0050] Specifically, a transverse drive mechanism 61 is mounted on the slide 52. A vertical guide rail 63 is laterally slidably connected to the transverse drive mechanism 61. A slider 64 is vertically slidably connected to the vertical guide rail 63. The telescopic pipe jacking device 6 is connected to the slider 64. The transverse drive mechanism 61 is used to drive the vertical guide rail 63 for lateral movement, while the vertical guide rail 63 is equipped with a vertical drive mechanism 66 for vertically moving the slider 64. This allows for synchronized movement of the telescopic pipe jacking device 6 and the orifice plate assembly device 5 while also enabling fine-tuning of the vertical and longitudinal position of the telescopic pipe jacking device 6 to facilitate alignment of the telescopic pipe jacking device 6 with the through-hole 31 of the external orifice plate 3. The transverse drive mechanism 61 and the vertical drive mechanism 66 utilize rodless cylinders.

[0051] In this embodiment, the telescopic jacking device 6 is a cylinder mounted on the side of the slider 64, and the cylinder is arranged longitudinally. The number of cylinders can be increased according to actual needs. Adjacent cylinders are fixedly connected by connecting rods and arranged parallel to each other.

[0052] Reference Figures 4 to 6 The expansion device 65 includes an inflation assembly and several independent airbags. The inflation assembly is used to inflate and deflate the airbags. The inflation assembly can be several independent micro-pumps embedded in the end of the cylinder piston rod. The micro-pumps are small and can pass through the through hole 31 and the mounting hole 81. The airbags can be independently inflated and deflated by the micro-pumps. The micro-pumps are communicatively connected to the controller, which can remotely control the independent start and stop of the multiple micro-pumps.

[0053] The airbag is annular and fixedly sleeved on the end of the piston rod of the cylinder. Several airbags are distributed side by side along the telescopic direction of the telescopic jacking device 6, and the several airbags correspond one to one with the several internal orifice plates 8 on the positioning member.

[0054] When installing the internal orifice plate 8, several airbags are respectively located in the mounting holes 81 of the corresponding internal orifice plates 8. The airbags are inflated by the inflation assembly, and the airbags expand and press against the inner wall of the mounting hole 81. Then the telescopic jacking device 6 drives the several airbags to move synchronously. When one of the internal orifice plates 8 reaches the predetermined position, the airbag corresponding to the internal orifice plate 8 is deflated and the pressing effect on the mounting hole 81 of the internal orifice plate 8 is released. The telescopic jacking device 6 is extended and drives the remaining internal orifice plates 8 to move. The telescopic jacking device 6 continues to extend and the several airbags are deflated in sequence, so that the several internal orifice plates 8 are distributed at intervals in the cylinder 1.

[0055] Since the position of the internal orifice plate 8 can be controlled according to the corresponding airbag deflation time node, in order to improve the stability of the internal orifice plate 8 in the cylinder 1, screws can be driven from the outside of the cylinder 1 to fix the cylinder 1 and the internal orifice plate 8. It should be noted that the gap between the screws and the cylinder 1 will need to be welded in the subsequent stage to maintain the sealing of the cylinder 1.

[0056] It should be emphasized that when assembling a large evaporator, the length of the telescopic jacking device 6 also increases accordingly. To improve the stability of the synchronous movement of the orifice plate assembly device 5 and the telescopic jacking device 6, the width of the horizontal guide frame 7 can be increased. A dual-track parallel arrangement is employed, with a base 51, a slide 52, a transverse drive member, a longitudinal drive member, and a transverse drive mechanism 61 additionally mounted on the track attached to the horizontal guide frame 7. The arrangement is similar to that of the three-axis drive mechanism and the horizontal guide frame 7. A base plate 62 is mounted on both transverse drive mechanisms 61. Four vertical guide rails 63 are divided into two vertical columns and fixed vertically to the base plate 62. Each column is equipped with a telescopic jacking device 6, thereby improving the structural stability of the telescopic jacking device 6. Furthermore, when there are more than two telescopic jacking devices 6, the distance between adjacent telescopic jacking devices 6 must be equal to the distance between two through-holes 31 in the external orifice plate 3 during installation, ensuring that multiple telescopic jacking devices 6 can be simultaneously inserted into corresponding through-holes 31 in the external orifice plate 3.

[0057] The present application also discloses a method for synchronously assembling inner and outer orifice plates of an evaporator, which uses a device for synchronously assembling inner and outer orifice plates of an evaporator, including the following steps:

[0058] S1: Place the cylinder 1 flat on the assembly rack 2, fix the positioning piece 33 on the inner end face of each external orifice plate 3, and assemble several internal orifice plates 8 side by side on the inner end face of the external orifice plate 3 through the positioning piece 33, and then place several external orifice plates 3 side by side in an upright state on the orifice plate storage device 4. At this time, the orifice plate assembly device 5 is in the initial position, and the electromagnetic suction cup 54 is aimed at the center of the outer end face of the external orifice plate 3 on the orifice plate storage device 4.

[0059] S2: The slide 52 of the orifice plate assembly device 5 moves longitudinally toward the orifice plate storage device 4 under the drive of the longitudinal drive member, and the external orifice plate 3 moves toward the orifice plate assembly device 5 under the drive of the conveyor belt mechanism 42 of the orifice plate storage device 4 until the front end face of the electromagnetic suction cup 54 reaches the outer end face of the external orifice plate 3, and the electromagnetic suction cup 54 grabs the external orifice plate 3, and then through the adjustment action of the vertical drive member and the longitudinal drive member, the electromagnetic suction cup removes the external orifice plate 3 from the positioning frame 43.

[0060] In this embodiment, an infrared sensor is installed at the end of the telescopic jacking device 6. The infrared sensor's rays are emitted along the axis of the telescopic jacking device 6. When the infrared sensor is blocked by the outer end wall of the external orifice plate 3, it indicates that the telescopic jacking device 6 is not aligned with the through hole 31. At this time, the horizontal drive mechanism 61 and the vertical drive mechanism 66 are activated to fine-tune the position of the telescopic jacking device 6 until the infrared sensor's rays pass through the through hole 31 of the external orifice plate 3 and the mounting hole 81 of the internal orifice plate 8 without obstruction, so that the telescopic jacking device 6 is aligned with the through hole 31 of the external orifice plate 3. The telescopic jacking device 6 is then activated, allowing the telescopic jacking device 6 to pass through the through hole 31 of the external orifice plate 3 and the mounting holes 81 of the internal orifice plates 8. The expansion device 65 is then activated, and the expansion device 65 presses against the inner walls of the mounting holes 81 of the internal orifice plates 8 to stabilize the internal orifice plates 8.

[0061] Next, the orifice plate assembly devices 5 on the horizontal guide frames 7 at both ends of the assembly frame 2 move simultaneously to simultaneously assemble the orifice plates at both ends of the cylinder 1. At this time, the telescopic jacking device 6 moves synchronously with the orifice plate assembly devices 5 to move the outer orifice plate 3 and the inner orifice plate 8 together to the ends of the cylinder 1 for assembly.

[0062] When installing the internal orifice plate 8, several airbags are respectively located in the mounting holes 81 of the corresponding internal orifice plates 8. The airbags are inflated by the inflation assembly, and the airbags expand and press against the inner wall of the mounting hole 81. Then, the telescopic jacking device 6 drives the several airbags to move synchronously. When one of the internal orifice plates 8 reaches the predetermined position, the airbag corresponding to the internal orifice plate 8 is deflated and the pressing effect on the mounting hole 81 of the internal orifice plate 8 is released. The telescopic jacking device 6 is extended and drives the remaining internal orifice plates 8 to move. The telescopic jacking device 6 continues to extend and the airbags are deflated in sequence, so that the several internal orifice plates 8 are spaced apart in the cylinder 1. Then, screws are driven into the outside of the cylinder 1 to fix the cylinder 1 and the internal orifice plates 8, and the welds are processed to maintain the sealing of the cylinder 1, thereby completing the synchronous assembly steps of the internal orifice plates 8 and the external orifice plates 3.

[0063] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A synchronous assembly device for inner and outer orifice plates of an evaporator, characterized in that: include: An assembly rack (2), wherein the assembly rack (2) is used to horizontally place the cylinder (1) to be assembled; An orifice plate storage device (4) is used to place a plurality of upright external orifice plates (3), wherein the through holes (31) of the plurality of external orifice plates (3) are aligned with each other, and the axis of the external orifice plates (3) is parallel to the axis of the cylinder (1); a plurality of internal orifice plates (8) are arranged at the inner end surface of each of the external orifice plates (3), and the plurality of internal orifice plates (8) and the external orifice plates (3) are arranged side by side and coaxially, and the mounting holes (81) of the internal orifice plates (8) are aligned with the through holes (31) of the external orifice plates (3); a positioning member (33) is provided on the inner end surface of the external orifice plate (3), and the positioning member (33) passes through the plurality of internal orifice plates (8) along the axial direction of the external orifice plate (3); An orifice plate assembly device (5) is used to grab the external orifice plate (3) in the orifice plate storage device (4) and move the external orifice plate (3) to the end of the cylinder (1) for assembly. When the external orifice plate (3) is assembled to the end of the cylinder (1), a plurality of internal orifice plates (8) are assembled inside the cylinder (1); A telescopic jacking device (6) is configured to move synchronously with the orifice plate assembly device (5). An expansion device (65) is provided at the end of the telescopic jacking device (6). The telescopic jacking device (6) is configured to penetrate the through hole (31) of the external orifice plate (3) and the mounting holes (81) of the plurality of internal orifice plates (8). When the expansion device (65) is stretched outward, the expansion device (65) is pressed against the inner wall of the mounting hole (81) of the internal orifice plate (8). Through the telescopic operation of the telescopic jacking device (6) and the expansion operation of the expansion device (65), the spacing of the plurality of internal orifice plates (8) is distributed within the cylinder (1). The expansion device (65) includes an inflation component and a plurality of independent air bags, the inflation component is used to inflate and deflate the plurality of air bags, the plurality of air bags are arranged side by side along the telescopic direction of the telescopic jacking tube device (6), and the plurality of air bags correspond to the plurality of internal orifice plates (8) one by one; when the internal orifice plates (8) are installed, the plurality of air bags are respectively located in the mounting holes (81) of the corresponding internal orifice plates (8), and the plurality of air bags are inflated by the inflation component, and the air bags expand and press against the inner wall of the corresponding mounting hole (81). The telescopic jacking device (6) drives a plurality of air bags and a plurality of internal orifice plates (8) to move synchronously. When one of the internal orifice plates (8) reaches a predetermined position, the air bag corresponding to the internal orifice plate (8) is deflated and the pressing effect on the mounting hole (81) of the internal orifice plate (8) is released. The telescopic jacking device (6) is extended and drives the remaining internal orifice plates (8) to move. The telescopic jacking device (6) is continuously extended and the air bags are deflated one by one, so that the internal orifice plates (8) are spaced and distributed in the cylinder (1).

2. The synchronous assembly device for inner and outer orifice plates of an evaporator according to claim 1, characterized in that: The synchronous assembly device for the inner and outer orifice plates of the evaporator further comprises two horizontal guide frames (7), and the horizontal guide frames (7) are used to guide the movement of the orifice plate assembly device (5); the two horizontal guide frames (7) are respectively placed at both ends of the assembly frame (2), and the length direction of the horizontal guide frames (7) is perpendicular to the axial direction of the cylinder (1); each of the horizontal guide frames (7) corresponds to one orifice plate assembly device (5), and each of the orifice plate assembly devices (5) corresponds to one telescopic jacking device (6); the orifice plate storage device (4) is respectively placed on both sides of the assembly frame (2), and the orifice plate assembly devices (5) on the two horizontal guide frames (7) cooperate with the telescopic jacking device (6) to synchronously perform the assembly steps of the external orifice plate (3) and the internal orifice plate (8).

3. The synchronous assembly device for inner and outer orifice plates of an evaporator according to claim 1, characterized in that: The orifice plate storage device (4) comprises a base (41), a conveyor belt mechanism (42) arranged on the base (41), and a plurality of positioning frames (43), wherein the positioning frames (43) limit the position of the external orifice plate (3) in an upright state; the conveying direction of the conveyor belt mechanism (42) is parallel to the axial direction of the cylinder (1), and the plurality of positioning frames (43) are distributed on the conveying surface of the conveyor belt mechanism (42) along the conveying direction of the conveyor belt mechanism (42).

4. The synchronous assembly device for inner and outer orifice plates of an evaporator according to claim 3, characterized in that: The conveying surface of the conveyor belt mechanism (42) is provided with a positioning block (45), the bottom of the external orifice plate (3) is recessed and provided with a positioning groove (32), and the positioning block (45) is engaged with the positioning groove (32).

5. The synchronous assembly device for inner and outer orifice plates of an evaporator according to claim 1, characterized in that: The orifice plate assembly device (5) comprises an electromagnetic chuck (54) and a three-axis moving mechanism for driving the electromagnetic chuck (54) to move. The electromagnetic chuck (54) grasps the external orifice plate (3) by magnetic attraction and fixation. The three-axis moving mechanism is used to drive the electromagnetic chuck (54) to move so as to transfer the external orifice plate (3) to the end of the cylinder (1) for assembly.

6. The synchronous assembly device for inner and outer orifice plates of an evaporator according to claim 5, characterized in that: The three-axis moving mechanism comprises a base (51) connected to a horizontal guide frame (7) in a transverse sliding manner, a slide (52) connected to the base (51) in a longitudinal sliding manner, and a vertical slide (53) vertically arranged on the slide (52); the electromagnetic suction cup (54) is connected to the vertical slide (53) in a vertical sliding manner; the horizontal guide frame (7) is provided with a transverse driving member for driving the base (51) to move transversely; the base (51) is provided with a longitudinal driving member for driving the slide (52) to move longitudinally; and the vertical slide (53) is provided with a vertical driving member for driving the slide (52) to slide vertically.

7. The synchronous assembly device for inner and outer orifice plates of an evaporator according to claim 6, characterized in that: The slide seat (52) is provided with a transverse driving mechanism (61), the transverse driving mechanism (61) is connected to a vertical guide rail (63) in a transverse sliding manner, the vertical guide rail (63) is connected to a slider (64) in a vertical sliding manner, the telescopic jacking device (6) is connected to the slider (64), the transverse driving mechanism (61) is used to drive the vertical guide rail (63) to move transversely, and the vertical guide rail (63) is provided with a vertical driving mechanism (66) for driving the slider (64) to move vertically.

8. A method for synchronously assembling inner and outer orifice plates of an evaporator, using a synchronous assembly device for inner and outer orifice plates of an evaporator according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: Place the cylinder (1) flat on the assembly rack (2), fix the positioning piece (33) on the inner end surface of each outer orifice plate (3), and assemble several inner orifice plates (8) side by side on the inner end surface of the outer orifice plates (3) through the positioning piece (33), and then place the several outer orifice plates (3) side by side in an upright state on the orifice plate storage device (4); S2: The orifice plate assembly device (5) grabs the external orifice plate (3) at the orifice plate storage device (4) to move the external orifice plate (3) to the end of the cylinder (1) for assembly. The telescopic jacking device (6) penetrates the through hole (31) of the external orifice plate (3) and the mounting holes (81) of the plurality of internal orifice plates (8), and is stretched out to the four sides by the expansion device (65) to fix the plurality of internal orifice plates (8) to the end of the telescopic jacking device (6). Through the telescopic operation of the telescopic jacking device (6) and the expansion operation of the expansion device (65), the plurality of internal orifice plates (8) are moved one by one at equal intervals to the designated positions in the cylinder (1), thereby completing the synchronous assembly steps of the internal orifice plates (8) and the external orifice plates (3).

9. The method for synchronously assembling inner and outer orifice plates of an evaporator according to claim 8, characterized in that: In said S2, after the orifice plate assembly device (5) grabs the external orifice plate (3), the telescopic jacking device (6) is first started, so that the telescopic jacking device (6) passes through the through hole (31) of the external orifice plate (3) and the mounting holes (81) of the plurality of internal orifice plates (8), and then the expansion device (65) is started, and the expansion device (65) presses against the inner walls of the mounting holes (81) of the plurality of internal orifice plates (8) to stabilize the internal orifice plates (8), and then the external orifice plate (3) and the internal orifice plates (8) are moved together to the end of the cylinder (1) for assembly through the orifice plate assembly device (5).

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