Tube plate assembly scaling powder coating and assembling device

Abstract

The utility model provides a tube plate assembly scaling powder coating and assembling device. The tube plate assembly scaling powder coating and assembling device comprises a first conveying unit, a tube plate coating unit, a second conveying unit, a third conveying unit, an assembling unit, a fourth conveying unit and an assembly coating unit. The first conveying unit is configured to convey a plurality of pairs of tube plates to the tube plate coating unit; the tube plate coating unit comprises a tube plate transferring unit, two tube plate grippers and a first coating tool; the second conveying unit is configured to convey the tube plate coated with the soldering flux to a first position of the assembling unit; the third conveying unit is configured to convey the plurality of internal scattering units to a second position of the assembling unit; the assembling unit obtains the assembled tube plate assembly; the fourth conveying unit is configured to convey the assembled tube plate assembly to the assembly coating unit; the assembly coating unit is configured to coat the two ends of the assembled tube plate assembly with scaling powder. The device provided by the utility model realizes the automatic assembly of the tube plate component and the coating of the soldering flux, and saves the assembly cost of the product.

Description

Technical Field

[0001] This utility model relates to the field of automotive heat dissipation tube plate technology, and more specifically, to a tube plate assembly flux coating and assembly device. Background Technology

[0002] In traditional brazing, flux is applied between the workpieces and they are positioned before being transported to a high-temperature brazing chamber. To ensure easy and smooth solder application, the viscosity of traditional solders is required to be below 220 mPa. · s.

[0003] However, in actual welding scenarios, after the workpieces are coated with flux, they undergo changes in posture, such as flipping and changing from horizontal to vertical placement. Fluxes of traditional viscosity cannot effectively fix the relative positions between the workpieces. Without adding extra steps, it is necessary to increase the viscosity of the flux to achieve this. The following describes a flux coating assembly device for tube sheet assemblies.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this utility model, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] In view of the problems in the prior art, the purpose of this utility model is to provide a flux coating assembly device for tube sheet assemblies. This flux coating assembly device realizes the automatic assembly and flux coating of tube sheet assemblies, which greatly saves the assembly cost of the product.

[0006] This utility model provides a flux coating assembly device for tube sheet assembly. The tube sheet assembly includes a pair of tube sheets arranged opposite each other and an internal dispersion unit between the two tube sheets. The flux coating assembly device includes a first conveying unit, a tube sheet coating unit, a second conveying unit, a third conveying unit, an assembly unit, a fourth conveying unit, and an assembly coating unit.

[0007] The first conveying unit is configured to convey multiple pairs of the tube sheets to the tube sheet coating unit;

[0008] The tube sheet coating unit includes a tube sheet transfer unit, two tube sheet grippers, and a first coating fixture. The tube sheet transfer unit transfers multiple pairs of tube sheets from the first conveying unit to one end of the production line and lifts the tube sheets to one of the tube sheet grippers. The first coating fixture includes a first flux reservoir unit, a first coating roller, and a coating suction cup station. The tube sheet grippers move the tube sheets from the tube sheet transfer unit to the coating suction cup station. The first coating roller is configured to pick up flux from the first flux reservoir unit and distribute it on its surface. Moving the first coating roller coats the surface of the roller with flux onto the surface of the tube sheet at the coating suction cup station. The other tube sheet gripper conveys the flux-coated tube sheet to the second conveying unit.

[0009] The second conveying unit is configured to convey the tube sheet coated with flux to a first position of the assembly unit;

[0010] The third conveying unit is configured to convey a plurality of the internal dispersing units to a second position of the assembly unit;

[0011] The assembly unit includes an internal bulk feeding unit, a flipping unit, and a riveting unit. The internal bulk feeding unit is configured to move to a second position to pick up an internal bulk unit, then transfer the internal bulk unit to a position above a first position and release the internal bulk unit onto a tube sheet at the first position. The flipping unit is configured to flip a tube sheet at intervals and place it on an adjacent tube sheet. The riveting unit is configured to rivet the two ends of oppositely arranged tube sheets to obtain an assembled tube sheet assembly.

[0012] The fourth conveying unit is configured to transport the assembled tube sheet assembly to the assembly coating unit;

[0013] The component coating unit is configured to coat both ends of the assembled tube sheet assembly with flux, including two sets of second flux reservoirs, second coating rollers, and two drive units. Each second coating roller is configured to pick up flux from the second flux reservoir and distribute it on the roller surface. The two sets of second flux reservoirs and the second coating rollers are arranged opposite to each other on both sides of the fourth conveying unit. Each drive unit is connected to a second coating roller and drives it to reciprocate in a direction perpendicular to the transmission direction of the fourth conveying unit.

[0014] According to some examples of the present invention, the tube sheet transfer unit includes two fixed side plates, two movable side plates, a first clamping cylinder, a lead screw motor, two guide rails, and a first lifting cylinder.

[0015] The two fixed side plates are arranged in parallel, and a plurality of first positioning elements are provided on the inner side of the fixed side plates;

[0016] The two movable side plates are respectively disposed inside the two fixed side plates, and the inner side of the movable side plate is provided with a plurality of second positioning members; the first clamping cylinder is connected to the movable side plate and controls the two movable side plates to reciprocate along the extension direction of the fixed side plate; when the movable side plate reciprocates relative to the fixed side plate, a first positioning member on the fixed side plate and a second positioning member on the movable side plate clamp or release the tube plate;

[0017] The lead screw of the lead screw motor is connected to the fixed side plate and drives the two fixed side plates to reciprocate along the extension direction of the guide rail;

[0018] The first lifting cylinder is connected to the fixed side plate and controls the lifting of the two fixed side plates.

[0019] According to some examples of the present invention, the tube plate gripper includes a second lifting cylinder, a second clamping cylinder, a gear and rack assembly, two horizontal columns, and two claws respectively disposed on the two horizontal columns with multiple pairs of paired claws.

[0020] The piston of the second clamping cylinder is connected to the gear of the gear and rack assembly;

[0021] The two horizontal columns are respectively connected to the gear and rack of the gear and rack assembly, and the reciprocating motion of the piston of the second clamping cylinder drives the two jaws of multiple pairs of jaws to be in a clamping state or a loose state.

[0022] The second lifting cylinder is configured to control the overall raising or lowering of multiple pairs of paired chucks.

[0023] According to some examples of the present invention, the flux coating assembly device further includes an internal dispersion positioning unit disposed between the third conveying unit and the assembly unit, the internal dispersion positioning unit including multiple pairs of internal dispersion clamping side plates, a third clamping cylinder, a shift fork assembly and a second drive unit.

[0024] The third clamping cylinder is connected to the inner loose clamping side plate and controls the spacing between each pair of inner loose clamping side plates.

[0025] The shift fork assembly is provided with multiple shift forks, which are adapted to the position of the conveying inner dispersion unit on the third conveying unit. The second driving unit is connected to the shift fork assembly and controls the shift fork assembly to move the inner dispersion unit to one end of the multiple pairs of inner dispersion clamping side plates away from the third conveying unit.

[0026] According to some examples of the present invention, the internal feeding unit includes a servo module and a plurality of suction cups connected to the servo module. The servo module is configured to move along the transmission direction of the internal feeding unit and perpendicular to the transmission plane of the internal feeding unit.

[0027] According to some examples of the present invention, the flux coating assembly device further includes a tube sheet stamping unit for stamping the tube sheet, and the stamped tube sheet is transferred to the first conveying unit for transmission.

[0028] According to some examples of this utility model, the flux coating assembly device further includes an internal dispersion stamping unit for stamping the internal dispersion, and the stamped internal dispersion is transferred to the third conveying unit.

[0029] According to some examples of the present invention, the flux coating assembly device further includes a tube sheet drying unit disposed on the transmission line of the first conveying unit.

[0030] According to some examples of the present invention, the flux coating assembly device further includes an internal drying unit disposed on the transmission line of the third conveying unit. Attached Figure Description

[0031] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0032] Figure 1 This is a schematic diagram of the tube sheet structure of this utility model;

[0033] Figure 2 This is a schematic diagram of the tube sheet and internal diffuser structure of this utility model;

[0034] Figure 3 This is a schematic diagram of the tube sheet assembly according to an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the structure of a tube sheet assembly flux coating assembly device according to an embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of a tube sheet coating unit according to an embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the tube sheet transfer unit according to an embodiment of the present invention;

[0038] Figure 7 This is a schematic diagram of the structure of a tube sheet gripper according to an embodiment of the present invention;

[0039] Figure 8 This is a schematic diagram of the internal dispersion positioning unit according to an embodiment of the present invention;

[0040] Figure 9 This is a schematic diagram of the internal bulk feeding unit according to an embodiment of the present invention;

[0041] Figure 10 This is a schematic diagram of the structure of a flipping unit according to an embodiment of the present invention;

[0042] Figure 11 This is a schematic diagram of the structure of a riveting unit according to an embodiment of the present invention; and

[0043] Figure 12 This is a schematic diagram of the component coating unit according to an embodiment of the present invention. Detailed Implementation

[0044] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0045] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and settings are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0048] The structure of the flux coating assembly device for tube sheet assembly of this utility model is further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments are not intended to limit the scope of protection of this utility model.

[0049] This invention provides a flux coating assembly device for tube sheet assemblies. Figures 1 to 3 These are schematic diagrams of the tube sheet of this utility model, the tube sheet containing the internal diffuser, and the assembled tube sheet assembly. Specifically, the tube sheet assembly includes a pair of opposing tube sheets 91 and internal diffuser units 92. Each tube sheet 91 includes a body 911, with rolled edges 912 and a raised ridge 913 in the middle. When the two tube sheets 91 are engaged, the rolled edges 912 and ridges 913 of each tube sheet assembly provide two cavities for accommodating the internal diffusers. The two internal diffusers (internal diffuser units) are placed in these cavities and riveted together with rivets 914 at both ends of the tube sheets to form the tube sheet assembly to be assembled according to this utility model. Both ends of the tube sheet are configured as arcs with two semicircles connected together, and a groove 915 is formed between the two semicircles for positioning during transportation. The groove 915 can be semicircular or other shapes. Flux is applied to the surfaces of the cavities formed by the two opposing tube sheets 91 and to both ends of the assembled tube sheet assembly.

[0050] Figure 4 This is a schematic diagram of the structure of a tube sheet assembly flux coating and assembly device according to an embodiment of the present invention. The tube sheet assembly flux coating and assembly device includes a first conveying unit 1, a tube sheet coating unit 2, a second conveying unit 3, a third conveying unit 4, an assembly unit 5, a fourth conveying unit, and an assembly coating unit 6.

[0051] The first conveying unit 1 can be configured to convey multiple pairs of tube sheets 91 to the tube sheet coating unit. The first conveying unit 1 can be a conveyor belt structure, consisting of a conveyor belt, drive rollers, driven rollers, idlers, a tensioning device, and a frame, or it can be a chain conveyor structure, consisting of a chain, sprockets, and guide rails. The chain is a flexible component formed by a series of chain links connected by pins. The sprockets are connected to a motor, and the chain is driven by the meshing of the sprocket teeth with the chain. Since each tube sheet assembly contains two tube sheets, at least two tube sheets (one pair) are required as a group when transported on the conveyor belt.

[0052] In practical use, the flux coating assembly device also includes a tube sheet stamping unit and a tube sheet drying unit (not shown in the figure). The tube sheet stamping unit is used to stamp the tube sheet, and the stamped tube sheet can be transferred to the first conveying unit 1 by a robot or the like. The tube sheet drying unit 71 can be set on the conveying line of the first conveying unit 1, and can be an oven that the first conveying unit 1 can pass through. The tube sheet drying unit 71 is used to dry the stamping oil remaining on the tube sheet.

[0053] Figure 5 This is a schematic diagram of the structure of a tube sheet coating unit according to an embodiment of the present invention. Specifically, the tube sheet coating unit 2 includes a tube sheet transfer unit 21, two tube sheet grippers 22 / 24 and a first coating fixture. The tube sheet transfer unit transfers multiple pairs of tube sheets from the first conveying unit to one end of the production line and lifts the tube sheets to a tube sheet gripper 22. Figure 6This is a schematic diagram of the tube sheet transfer unit according to an embodiment of the present invention. The tube sheet transfer unit 21 includes two fixed side plates 211, two movable side plates 212, a first clamping cylinder 213, a lead screw motor 214, two guide rails 215, and a first lifting cylinder 217. The two fixed side plates 211 are arranged in parallel, and a plurality of first positioning elements 2111 are provided on the inner side of the fixed side plates 211. The two movable side plates 212 are respectively arranged on the inner side of the two fixed side plates 211, and a plurality of second positioning elements 2121 are provided on the inner side of the movable side plates 212. The first clamping cylinder 213 is connected to the movable side plate 212 and controls the first clamping cylinder 213 to reciprocate along the extension direction of the fixed side plate 211. The reciprocating movement of the movable side plate 212 relative to the fixed side plate 211 changes the relative position between a first positioning element 2111 and a second positioning element 2121, thereby realizing the function of clamping the tube sheet A. The lead screw motor 214 consists of a motor part and a lead screw transmission part. The lead screw is connected to the fixed side plate 211. The motor generates rotational power, which is transmitted to the lead screw through connecting components such as couplings. Driven by the motor, the lead screw rotates, and the fixed side plate 211 connected to the lead screw can move linearly along the axis of the lead screw. That is, the lead screw can drive the fixed side plate 211 to reciprocate along the extension direction of the guide rail 215, thereby adjusting the distance between the two fixed side plates 211 and achieving the function of clamping the two ends of the tube sheet A or releasing the tube sheet A. In some embodiments, the tube sheet transfer unit may further include a reversing gear 216, which is disposed on the output shaft of the lead screw motor 214 and is used to change the rotation direction of the lead screw motor output shaft, that is, to change the movement direction of the fixed side plate 211. The first lifting cylinder 217 is connected to the fixed side plate 211 and controls the lifting and lowering of the two fixed side plates 211.

[0054] When the first conveying unit 1 transports multiple pairs of tube sheets A to the tube sheet transfer unit 21, the first lifting cylinder 217 controls the two fixed side plates 211 to descend to the tube sheet A transport plane, the screw motor 214 controls the two fixed side plates 211 to move closer to clamp the two ends of the tube sheet A, the first clamping cylinder 213 controls the two movable side plates 212 to arrange and position the tube sheet A, and then the first lifting cylinder 217 controls the two fixed side plates 211 to rise and transport the tube sheet A to the position that the tube sheet gripper 22 can grasp.

[0055] Figure 7This is a schematic diagram of the structure of a tube sheet gripper according to an embodiment of the present invention. The tube sheet gripper 22 includes a translation drive unit (not shown in the figure), a second lifting cylinder 226, a second clamping cylinder 225, a gear and rack assembly 224, two horizontal columns 223, and multiple pairs of paired jaws. The two jaws 222 of each pair of jaws are respectively disposed on the two horizontal columns 223. Each of the two horizontal columns 223 can be mounted on a first support platform 221. The piston of the second clamping cylinder 225 is connected to the gear of the gear and rack assembly 224. The reciprocating motion of the piston of the second clamping cylinder 225 drives the relative movement of the two horizontal columns 223, thereby driving the two jaws of the multiple pairs of paired jaws to be in a clamping or releasing state. The multiple pairs of paired jaws can be set at a certain interval, which is adapted to the spacing of the tube sheets on the tube sheet transfer unit 21. The second lifting cylinder 226 is configured to control the overall raising or lowering of the multiple pairs of paired jaws. Figure 7 In one embodiment, the tube sheet gripper 22 may include a second support platform 227, a second lifting cylinder 226 disposed on the second support platform 227, and a translation drive unit connected to the second support platform 227. The second support platform 227 may span the support platform of the tube sheet coating unit, and the second support platform 227 may move along the tube sheet coating unit via the translation drive unit. Figure 5 The dashed arrow moves back and forth in the direction of the arrow.

[0056] The first coating fixture includes a first flux storage unit 231, a first coating roller 232, and a coating suction cup station 233. A translation drive unit drives the tube sheet gripper 22 to move to the tube sheet transfer unit 21. A second lifting cylinder 226 descends, causing multiple pairs of paired grippers to reach the tube sheet. A second clamping cylinder 225 controls the grippers to grip the tube sheet. The second lifting cylinder 226 rises. The translation drive unit drives the tube sheet gripper 22 to move above the coating suction cup station 233 of the first coating fixture. The second lifting cylinder 226 descends. The second clamping cylinder 225 controls the grippers to release the tube sheet and place the tube sheet on the coating suction cup station 233 of the first coating fixture. The suction cup of the coating suction cup station 233 adsorbs the tube sheet. The first flux reservoir 231 can consist of two stainless steel cylinders, gears, and a motor. The motor drives the stainless steel cylinders to rotate in opposite directions. Flux is delivered through pipes and drips between the two stainless steel cylinders. As the cylinders rotate, the flux is evenly adhered to the surface of the stainless steel cylinders, thus completing the flux reservoir storage in the first flux reservoir 231. The first coating roller 232 is configured to pick up flux from the first flux reservoir 231 and distribute it on its surface. Figure 5In this embodiment, the first coating roller contacts the stainless steel cylinder of the first flux reservoir unit 231. The stainless steel cylinder drives the first coating roller to rotate through friction, thereby coating the flux adhering to the surface of the stainless steel cylinder onto the surface of the first coating roller. After the tube sheet is suctioned to the coating suction cup station 233, the first coating roller 232 is moved to roll over the surface of the tube sheet at the suction cup station, thereby coating the surface of the tube sheet with flux from the surface of the first coating roller 232. After the surface of a set of tube sheets is coated with flux, the suction cup at the coating suction cup station 233 is released, and another tube sheet gripper 24 transports the tube sheet coated with flux to the second conveying unit 3. The second conveying unit 3 is configured to transport the tube sheet coated with flux to the first position of the assembly unit 5; the second conveying unit 3 can be a conveyor belt transmission structure. At the same time, the first coating roller 232 can move to pick up flux again from the first flux reservoir unit 231.

[0057] The third conveying unit is configured to convey multiple internal dispersing units to the second position of the assembly unit 5. Figure 1 In this embodiment, the third conveying unit includes a first conveying section 41 and a second conveying section 42. The conveying direction of the first conveying section 41 is parallel to the conveying direction of the first conveying unit 1 / second conveying unit 3. The second conveying section 42 transports the inner bulk unit to the assembly unit 5 in another direction. The conveying direction of the second conveying unit 3 is perpendicular to the extension direction of the tube sheet, and the conveying direction of the second conveying section 42 is parallel to the extension direction of the inner bulk unit. When the conveying direction of the second conveying section 42 is perpendicular to the conveying direction of the second conveying unit 3, the tube sheet and the inner bulk unit are placed in the same direction.

[0058] In some embodiments, the flux coating assembly apparatus further includes an internal dispersion stamping unit (not shown in the figures), which stamps the internal dispersion, and the stamped internal dispersion is then conveyed to a third conveying unit. Further, the flux coating assembly apparatus also includes an internal dispersion drying unit 72, disposed on the conveyor line of the third conveying unit, such as... Figure 1 In the middle, the internal drying unit 72 is set on the transmission line of the first conveying section 41. The internal drying unit 72 can be an oven that the first conveying section 41 can pass through, and is used to dry the stamping oil remaining on the internal powder.

[0059] In some embodiments, an internal positioning unit is further provided between the third conveying unit and the assembly unit 5. Figure 8This is a schematic diagram of the internal dispersion positioning unit according to an embodiment of the present invention. The internal dispersion positioning unit includes multiple pairs of internal dispersion clamping side plates 431, a third clamping cylinder 432, a shift fork assembly 433, and a second drive unit 434. The third clamping cylinder 432 is connected to the internal dispersion clamping side plates 431 and controls the spacing between each pair of internal dispersion clamping side plates 431. One end of the multiple pairs of internal dispersion clamping side plates 431 is connected to the third conveying unit (second conveying section 42). The positions of the multiple pairs of internal dispersion clamping side plates 431 are related to the third conveying unit (second conveying section 42). The position of the inner dispersion unit B on the conveying section 42) is adapted. The inner dispersion unit slides into the multiple pairs of inner dispersion clamping side plates 431 at the end of the third conveying unit due to inertia. The shift fork assembly 433 is provided with multiple shift forks, and the shift forks are adapted to the position of the inner dispersion unit B on the third conveying unit (second conveying section 42). The second drive unit 434 is connected to the shift fork assembly 433 and controls the shift fork assembly 433 to move the inner dispersion unit B to the other end 4331 of the multiple pairs of inner dispersion clamping side plates 431, which is the second position mentioned below.

[0060] Assembly unit 5 includes an internal packing unit 51, a flipping unit 52, and a riveting unit 53. The internal packing unit is configured to move to a second position to pick up an internal packing unit, then transfer the internal packing unit to a position above the first position and release the internal packing unit onto the tube sheet at the first position. The flipping unit is configured to flip a tube sheet at intervals and place it on an adjacent tube sheet. The riveting unit is configured to rivet the two ends of the oppositely arranged tube sheets to obtain the assembled tube sheet assembly.

[0061] Furthermore, the internal feeding unit includes a servo module and multiple suction cups connected to the servo module. The servo module is configured to move along the transmission direction of the internal feeding unit and perpendicular to the transmission plane of the internal feeding unit. Figure 9 This is a schematic diagram of the internal dispersing and feeding unit according to an embodiment of the present invention. The internal dispersing and feeding unit can be integrally mounted on a support 519, which is horizontally mounted above the second conveying unit 3. The servo module includes a third drive unit 511 that can move along a first direction and a fourth drive unit 512 that can be controlled to lift and lower. Multiple suction cups 513 are mounted on the movable end of the fourth drive unit 512. The multiple suction cups 513 move to the upper part of the internal dispersing and positioning unit through the servo module. After the multiple suction cups 513 pick up the internal dispersing unit, they rise and move to the upper part of the tube plate and place the internal dispersing unit into the tube plate on the second conveying unit 3 (first position). It should be noted that the internal dispersing units are spaced apart in the tube plate, that is, one tube plate contains an internal dispersing unit, and the adjacent tube plate is a tube plate that is to be flipped and fastened to the tube plate containing the internal dispersing unit.

[0062] Figure 10This is a schematic diagram of the structure of a flipping unit according to an embodiment of the present invention. The flipping unit 52 includes a tube sheet positioning and transfer unit 521 and a flipping component 522. The tube sheet positioning and transfer unit 521 can reciprocate along the second conveying unit 3. It is provided with a plurality of positioning pins 5211. Two positioning pins 5211 are arranged in two rows. The positioning pins 5211 arranged opposite each other engage the grooves 915 at both ends of the tube sheet, thereby transferring multiple pairs of tube sheets onto the second conveying unit 3. The tube sheet positioning and transfer unit 521 transports at least one tube sheet C with an inner dispersion unit and one tube sheet A without an inner dispersion unit to the positions that the riveting support 533 and the flipping component 522 can grasp. Through the rotation module and servo control provided in the flipping component 522, the tube sheet A without an inner dispersion unit is flipped and covers the tube sheet C with an inner dispersion unit.

[0063] The riveting support 533 can actually move back and forth along the second conveying unit 3 between the point where the riveting support 533 can grip the tube sheet C and the riveting station. Figure 11 This is a schematic diagram of the riveting unit according to an embodiment of the present invention. The riveting unit 53 can be integrally mounted on a support spanning the second conveying unit 3. The riveting unit 53 may include a cam connecting rod assembly, a rivet needle assembly, and a riveting support member 533. The cam connecting rod assembly 531 is connected to the drive unit to control the up and down movement of the rivet needle assembly. The rivet needle assembly may include multiple pairs of rivet needles 532. Figure 11 The riveting assembly includes two pairs of riveting needles 532, and correspondingly, two pairs of riveting support members 533. The number of pairs of riveting needles or riveting support members 533 can be set according to the number of tube sheets being conveyed or the number of internal distribution units, and is not limited here. When the riveting support member 533 moves to directly below the riveting station, the cam linkage assembly 531 drives the riveting needles 532 to descend. At this time, the riveting needles 532 are concentric with the center hole of the riveting seat 5331. During riveting, the needle tip passes through the hole of the riveting seat, and the riveting needles 532 and the riveting seat 5331 complete the riveting of the tube sheet to obtain the tube sheet assembly D. After riveting, the riveting support member 533 descends and places the tube sheet assembly D on the transmission line of the second conveying unit 3 and then moves to the tube sheet gripping position C.

[0064] exist Figure 4 In this embodiment, the fourth transport unit may be an extension of the second transport unit, and the fourth transport unit is configured to transport the assembled tube sheet assembly D to the assembly coating unit 6. Figure 12This is a schematic diagram of the component coating unit according to an embodiment of the present invention. The component coating unit 6 is configured to coat the two ends of the assembled tube sheet assembly with flux. It includes two sets of second flux storage units 61 and second coating rollers 62, as well as two drive units 63. Each second coating roller 62 is configured to pick up flux from the second flux storage unit 61 and distribute it on the roller surface. The two sets of second flux storage units 61 and second coating rollers 62 are arranged opposite each other on both sides of the fourth conveying unit. Each drive unit 63 is connected to the second coating roller 62 and drives it to reciprocate in a direction perpendicular to the transmission direction of the fourth conveying unit. Similarly, the second flux storage unit 61 can be composed of two stainless steel cylinders, gears, and a motor. The motor 64 drives the stainless steel cylinders to rotate in opposite directions. Flux is delivered through a pipe and drips between the two stainless steel cylinders. As the cylinders rotate, the flux is evenly adhered to the surface of the stainless steel cylinders, thus completing the storage of flux in the second flux storage unit 61. The second coating roller 62 picks up flux from the second flux reservoir unit 61 and distributes it on the roller surface. The two drive units 63 drive the two opposing second coating rollers 62 to move to both ends of the tube sheet assembly D on the fourth transport unit, thereby coating the surface of the tube sheet assembly with flux from the surface of the second coating roller 62.

[0065] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0066] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications or substitutions should be considered within the protection scope of the present invention.

Claims

1. A tube sheet assembly flux-coated assembly device, characterized by, The tube sheet assembly comprises a pair of oppositely arranged tube sheets and an inner dispersion unit between the two tube sheets, and the flux coating assembly comprises a first conveying unit, a tube sheet coating unit, a second conveying unit, a third conveying unit, an assembling unit, a fourth conveying unit and an assembly coating unit; The first conveying unit is configured to convey multiple pairs of the tube sheets to the tube sheet coating unit; The tube sheet coating unit comprises a tube sheet transfer unit, two tube sheet grippers and a first coating tool, the tube sheet transfer unit transfers multiple pairs of the tube sheets from the first conveying unit to one end of a line body and lifts the tube sheets to one of the tube sheet grippers; the first coating tool comprises a first flux storage unit, a first coating roller and a coating suction cup station, the tube sheet gripper moves the tube sheet at the tube sheet transfer unit to the coating suction cup station, the first coating roller is configured to pick up flux from the first flux storage unit and distribute the flux on the surface of the roller, and moving the first coating roller coats the surface of the tube sheet at the coating suction cup station with the flux on the surface of the roller; the other tube sheet gripper conveys the tube sheet coated with the flux to the second conveying unit; The second conveying unit is configured to convey the tube sheet coated with the flux to a first position of the assembling unit; The third conveying unit is configured to convey multiple inner dispersion units to a second position of the assembling unit; The assembling unit comprises an inner dispersion loading unit, a turnover unit and a riveting unit, the inner dispersion loading unit is configured to move to the second position to pick up the inner dispersion unit, then transfer the inner dispersion unit above the first position and release the inner dispersion unit to the tube sheet at the first position; the turnover unit is configured to turn one tube sheet apart and place it on the adjacent tube sheet; the riveting unit is configured to rivet the two ends of the oppositely arranged tube sheets to obtain the assembled tube sheet assembly; The fourth conveying unit is configured to transfer the assembled tube sheet assembly to the assembly coating unit; The assembly coating unit is configured to coat the two ends of the assembled tube sheet assembly with flux, comprising two sets of second flux storage units and second coating rollers and two driving units, each second coating roller is configured to pick up flux from the second flux storage unit and distribute the flux on the surface of the roller, the two sets of second flux storage units and the second coating rollers are oppositely arranged on both sides of the fourth conveying unit, and each driving unit is connected with one second coating roller and drives it to reciprocate in a direction perpendicular to the conveying direction of the fourth conveying unit.

2. The tube sheet assembly flux application apparatus of claim 1, wherein, The tube sheet transfer unit comprises two fixed side plates, two movable side plates, a first clamping cylinder, a lead screw motor, two guide rails and a first lifting cylinder; The two fixed side plates are arranged in parallel, and the inner sides of the fixed side plates are provided with multiple first positioning members; Two movable side plates are arranged on the inner side of the two fixed side plates, and the inner side of the movable side plate is provided with a plurality of second positioning members; the first clamping cylinder is connected with the movable side plate and controls the reciprocating movement of the two movable side plates along the extension direction of the fixed side plate; when the movable side plate reciprocates relative to the fixed side plate, a first positioning member on the fixed side plate and a second positioning member on the movable side plate clamp or release the tube plate; The screw rod of the screw motor is connected with the fixed side plate and drives the two fixed side plates to reciprocate along the extension direction of the guide rail; The first lifting cylinder is connected with the fixed side plate and controls the lifting of the two fixed side plates.

3. The tube sheet assembly flux applicator apparatus of claim 1, wherein, The tube plate gripper includes a second lifting cylinder, a second clamping cylinder, a gear and rack assembly, two cross columns, and two pairs of clamping jaws arranged on the two cross columns; The piston of the second clamping cylinder is connected with the gear of the gear and rack assembly; Two cross columns are respectively connected with the gear and rack of the gear and rack assembly, and the reciprocating movement of the piston of the second clamping cylinder drives the two clamping jaws of the multiple pairs of clamping jaws to be in a clamping state or a loosening state. The second lifting cylinder is configured to control the overall lifting or lowering of the multiple pairs of clamping jaws.

4. The tube sheet assembly flux application apparatus of claim 1, wherein, The flux coating assembly device further comprises an inner dispersion positioning unit arranged between the third conveying unit and the assembly unit, the inner dispersion positioning unit comprising multiple pairs of inner dispersion clamping side plates, a third clamping cylinder, a shift fork assembly and a second driving unit; The third clamping cylinder is connected with the inner dispersion clamping side plate and controls the spacing between each pair of inner dispersion clamping side plates; The shift fork assembly is provided with a plurality of shift forks, the shift forks are adapted to the position of the conveying inner dispersion unit on the third conveying unit, and the second driving unit is connected with the shift fork assembly and controls the shift fork assembly to shift the inner dispersion unit to the end of the multiple pairs of inner dispersion clamping side plates away from the third conveying unit.

5. The tube sheet assembly flux applicator apparatus of claim 1, wherein, The inner dispersion feeding unit comprises a servo module and a plurality of suction cups connected with the servo module, and the servo module is configured to move along the transmission direction of the inner dispersion unit and perpendicular to the transmission plane of the inner dispersion.

6. The tube sheet assembly flux applicator apparatus of claim 1, wherein, The flux coating assembly device further comprises a tube plate stamping unit for stamping a tube plate, and the stamped tube plate is transmitted to the first conveying unit.

7. The tube sheet assembly flux applicator apparatus of claim 1, wherein, The flux coating assembly device further comprises an inner dispersion stamping unit for stamping an inner dispersion, and the stamped inner dispersion is transmitted to the third conveying unit.

8. The tube sheet assembly flux applicator apparatus of claim 1, wherein, The flux coating assembly device further comprises a tube plate drying unit arranged on the transmission line of the first conveying unit.

9. The tube sheet assembly flux applicator apparatus of claim 1, wherein, The flux coating assembly device further comprises an inner dispersion drying unit arranged on the transmission line of the third conveying unit. The flux coating assembly device further comprises a tube plate drying unit arranged on the transmission line of the first conveying unit. The flux coating assembly device further comprises an inner dispersion drying unit arranged on the transmission line of the third conveying unit.

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