Production system and machining method for snakelike flying wing radiator

Abstract

The invention relates to the technical field of radiator production, in particular to a production system and a machining method for a snakelike flying wing radiator. The production system comprises a wing shoveling device, a wing milling and polishing device, a bending and forming device and a cutting and shaping device, the cutting and shaping device comprises a rotary lifting type machining platform, and a layered integrated assembly is formed by a base assembly, a rotary execution assembly and a vertical lifting assembly from bottom to top; and the modular processing unit comprises a workpiece exchange station, a transverse cutting station, a longitudinal fin cutting station and a surface treatment station which are sequentially arranged according to working procedures. Full-automatic, high-precision and integrated continuous production from a base material flat pipe to a finished product is achieved, and the production efficiency and the product consistency are greatly improved. According to the multi-station cutting and shaping device, through the collaborative design of the layered platform and the modular stations, the machining efficiency and precision are remarkably improved.

Description

A production system and processing method for serpentine wing radiators Technical Field

[0001] This invention relates to the field of radiator manufacturing technology, specifically to a production system and processing method for a serpentine wing radiator. Background Technology

[0002] In fields such as electronic equipment and refrigeration devices, serpentine finned heat sinks are widely used due to their compact structure and large heat dissipation area. These heat sinks are typically made by repeatedly and precisely bending flat tubes with finned blades. Their manufacturing process is complex, involving multiple precision steps such as fin shaping, fin finishing, bending, and end cutting and shaping. There is an urgent need for a solution that enables fully automated, high-precision, integrated continuous production of serpentine finned heat sinks from raw materials to finished products, to overcome the shortcomings of existing technologies, such as low production efficiency, poor product consistency, and insufficient automation.

[0003] Furthermore, traditional cutting and shaping equipment often suffers from several drawbacks: Firstly, most devices can only perform a single operation, such as cutting or trimming wings. This necessitates transferring the workpiece multiple times to different equipment for further processing when producing serpentine radiators. This not only significantly reduces production efficiency but also easily introduces positioning errors during workpiece transfer, affecting product accuracy. Secondly, traditional equipment lacks flexibility in clamping irregularly shaped workpieces like serpentine winged flat tubes, making it difficult to achieve fast, accurate, and stable clamping, thus failing to meet the demands of efficient automated production. Moreover, the lack of an integrated processing platform prevents continuous automated production across multiple processes, relying on manual operation, resulting in high costs and poor stability, thereby impacting the processing quality of subsequent processes. Summary of the Invention

[0004] In view of the above-mentioned technical problems existing in the prior art, the purpose of the present invention is to provide a production system and processing method for a serpentine wing heat sink.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a serpentine finned radiator production system, comprising: a fin-scraping device for simultaneously forming finned blades on both sides of a double-layer flat tube; a fin milling and grinding device for milling, grinding, cutting to a fixed length, and finishing the end face of the fins; a bending and forming device for continuously bending the flat tube into a serpentine shape after cutting off the fins in a designated area; and a cutting and shaping device for rotary indexing cuts, fin cutting, and surface treatment of the ends of the serpentine flat tube; and a multi-station cutting and shaping device, comprising a rotary lifting processing platform, which consists of a base assembly, a rotary actuator assembly, and a vertical lifting assembly from bottom to top. The lowering components form a layered integrated assembly; the base component has a built-in servo drive system, which drives the rotary actuator to rotate and index around the vertical lifting component at a preset angle through a worm gear transmission mechanism; the vertical lifting component is equipped with a displacement sensor and a multi-level composite guide structure to drive the modular processing unit to perform lifting and positioning; the rotary actuator has multiple positioning jigs distributed circumferentially at equal intervals, and the positioning jigs are equipped with three-dimensional positioning components for positioning the serpentine wing flat tube; the modular processing unit includes a workpiece exchange station, a transverse cutting station, a longitudinal wing cutting station, and a surface treatment station arranged sequentially according to the process.

[0006] As a preferred technical solution, the base assembly is located at the bottom of the entire device, constituting the reference bearing module of the device, and integrates a rotary drive module and a hollow transmission shaft inside; the rotary drive module includes a servo motor, the output end of which is connected to the hollow transmission shaft by an interference fit to form a torque transmission connection; the hollow transmission shaft has an annular positioning boss on its axial end face; the rotating bearing disk of the rotary execution component has a stepped mounting hole at its center that mates with the outer wall of the hollow transmission shaft, realizing indexing rotation driven by the servo motor.

[0007] As a preferred technical solution, the vertical lifting assembly includes: a fixed base unit, a dynamic lifting unit, a top drive unit, and a distributed guide unit, all coaxially assembled. The fixed base unit includes a fixed base plate with a central shaft hole and a hollow drive shaft disposed within the central shaft hole. The hollow drive shaft is annular in shape, with a bearing assembly disposed in its hollow interior. The top drive unit consists of a fixed top plate and a servo drive mechanism it supports. The output end of the servo drive mechanism is connected to a ball screw pair, the lead screw of which sequentially passes through the fixed top plate, the dynamic lifting unit, and the fixed base unit, and its end is connected to the bearing assembly inside the hollow drive shaft to form a rotating pair. The dynamic lifting unit includes a lifting support plate rigidly connected to the nut seat of the ball screw pair. The lifting support plate has guide holes distributed at equal angles around its periphery, which are clearance-fitted with the guide columns of the distributed guide unit. A linear motion bearing is embedded in the guide holes, and the inner wall of the bearing is clearance-fitted with the outer wall of the guide column.

[0008] As a preferred technical solution, the positioning fixture includes: a base plate assembly fixed on a rotating bearing plate, with a longitudinal moving plate group and a transverse moving plate group above the base plate assembly; the base plate assembly is fixedly connected to the rotary platform; the base plate assembly and the longitudinal moving plate group are slidably connected through a longitudinal linear guide pair; the longitudinal moving plate group and the transverse moving plate group are slidably connected through a transverse linear guide pair.

[0009] As a preferred technical solution, it also includes a locking and positioning component, which includes: an extension arm integrally formed with the base plate of the positioning jig, the end of which is provided with two precision guide bushings; a positioning cylinder fixed to the base assembly, the end of which is provided with a conical guide head that is inserted into the guide bushing for dynamic locking after indexing rotation.

[0010] As a preferred technical solution, the transverse moving plate assembly is equipped with an adaptive compensation device, including: a first swing adjustment assembly, including a trapezoidal positioning through hole opened on the transverse moving plate assembly, the trapezoidal positioning through hole is used to install a rotatable first swing shaft, and a first pressure plate and nut are sleeved on the outside of the first swing shaft to allow fine adjustment of the angle of the transverse moving plate assembly; a second swing adjustment assembly, including a trapezoidal waist hole opened on the transverse moving plate assembly, the bottom of the trapezoidal waist hole is used to install a rotatable second swing shaft, the outside of the second swing shaft is sleeved with a second pressure plate and nut, and its axis is aligned with the first swing shaft; a first elastic plate assembly, disposed on the left and right sides of the longitudinal moving plate assembly and the transverse moving plate assembly, the bottom of which is connected to the longitudinal moving plate assembly and the top of which is in contact with the transverse moving plate assembly; and a second elastic plate assembly, centrally disposed on the front and rear sides of the longitudinal moving plate assembly, the bottom of which is in contact with the fixing block on the indexing bearing plate.

[0011] As a preferred technical solution, the transverse cutting station includes: a dual-axis synchronous cutting system, comprising two sets of first sawing motors and transverse disc cutters driven by them; the first sawing motors are mounted on the lifting support plate of the vertical lifting assembly, and the transverse disc cutters are used to synchronously cut off the ends of the flat tubes.

[0012] As a preferred technical solution, the longitudinal wing cutting station includes: a precision milling device, comprising two sets of second sawing motors and a double-saw blade longitudinal disc cutter driven by them; the spacing between the double saw blades matches the thickness of the end of the flat tube to be processed, and the thickness milling is completed by feeding the longitudinal moving plate group.

[0013] As a preferred technical solution, the surface treatment station includes: a dual-station grinding mechanism, comprising two sets of grinding motors and a longitudinal grinding wheel set with adaptive pressure adjustment; the grinding wheel set achieves surface finish treatment of the pipe end through the coordinated movement of the transverse and longitudinal moving plate sets.

[0014] This invention also discloses a processing method for a serpentine finned radiator production system, comprising the following steps: S1, double-sided fin forming: In the fin-shaving device, the flat tube is first positioned and clamped; subsequently, the fin-shaving assemblies symmetrically arranged on both sides of the flat tube drive the fins to move along a preset trajectory to complete the synchronous fin-shaving forming of the double-sided finned tube; S2, fin finishing and fixed-length cutting: The finned tube after fin-shaving enters the milling and grinding device, where the symmetrically arranged milling cutters perform fin milling flattening, and then the roller brush assembly uniformly grinds the fins; finally, the tube is cut to the required length, and the cut surface is roller brushed and precision-machined to obtain a smooth and clean end face; S3, bending forming: Before bending, the fin-cutting assembly removes a designated area. The fins of the tube form a smooth surface to be bent; then the rotating module clamps the tube, the positioning mandrel is inserted into the bending area, and the tube is driven to bend around the axis to a predetermined angle. Through the lateral movement module, multi-position continuous bending is achieved, and finally a compact serpentine tube is formed; S4, multi-station cutting and shaping: the bent workpiece is automatically locked on the positioning fixture on the rotating platform of the cutting and shaping device. Then the platform rotates in 90-degree increments and passes through three processing stations in sequence: first, the excess material at both ends is cut off by the dual-axis synchronous cutting system; then the end face is processed to the precise thickness by the precision milling device; finally, the end face burrs are cleaned by the grinding mechanism; after all processes are completed, the workpiece is automatically unlocked and rotated back to the loading station to realize cyclic production.

[0015] Compared with existing technologies, this invention has the following advantages: This invention provides an automated production system and processing method for serpentine wing radiators. Its core technological advantage lies in achieving fully automated, high-precision, and integrated continuous production from raw materials to finished products. Specifically, the system integrates four functional modules: wing trimming, finishing, bending, cutting, and shaping. A unified controller coordinates and controls the production rhythm, completely changing the traditional model of relying on manual labor and multiple decentralized machines, significantly improving production efficiency and product consistency.

[0016] Furthermore, the multi-station cutting and shaping device provided by this invention integrates four processes—workpiece exchange, transverse cutting, longitudinal fin cutting, and surface treatment—into one device. Through the design of modular processing units, combined with a rotary lifting processing platform, it realizes automated flow and precise processing of serpentine wing flat tubes between different stations (loading → cutting → fin cutting → surface treatment → unloading), which greatly improves the production efficiency of serpentine radiators, reduces the time and labor costs of transferring workpieces between different devices, effectively avoids positioning errors caused by transfer, and ensures product processing accuracy. Attached Figure Description

[0017] Figure 1 is a process flow diagram of the production system in this invention; Figure 2 is a schematic diagram of the overall installation of the cutting and shaping device in this invention; Figure 3 is a front view of the cutting and shaping device in this invention; Figure 4 is a three-dimensional enlarged view of the positioning fixture in Figure 2; Figure 5 is a three-dimensional view of the positioning fixture in this invention from another angle; Figure 6 is a three-dimensional view of the positioning fixture in this invention with one side of the elastic lifting plate and elastic clamping block hidden; Figure 7 is a schematic diagram of the adaptive compensation device of the positioning fixture in this invention; Figure 8 is a schematic diagram of the locking power component in the locked state in this invention; Figure 9 is a schematic diagram of the unlocking power component in the unlocked state in this invention; Figure 10 is a top view of the cutting and shaping device in this invention.

[0018] In the diagram: 1. Shovel wing device; 2. Wing milling and grinding device; 3. Bending and forming device; 4. Cutting and shaping device; 41. Base assembly; 41a. Rotary motor; 42. Rotating bearing plate; 43. Vertical lifting assembly; 4311. Fixed base plate; 4312. Hollow transmission shaft; 4321. Fixed top plate; 4322. Servo drive mechanism; 4323. Ball screw pair; 433. Lifting support plate; 4341. Guide column; 4342. Linear motion bearing; 44. Positioning fixture; 441. Base plate assembly; 442. Longitudinal moving plate assembly; 443. Lateral moving plate. Group; 4431, Fixture slide rail base plate; 4432, Fixture base plate; 444, Longitudinal linear guide rail pair; 445, Transverse linear guide rail pair; 446, Double-sided limiting module; 4461, Clamping assembly; 4462, Groove; 4463, Slot; 447, Front end positioning module; 448, Elastic clamping module; 4481, Elastic lifting plate; 4482, First guide rod; 4483, First spring assembly; 4484, Clamping block connecting plate; 4485, Elastic clamping block; 4485a, Through groove; 4486, Second guide rod; 4487, Second spring assembly; 449, Elastic Locking assembly; 4491, Lock block seat; 4492, Lock block guide seat; 4493, Lock block; 4493a, Second inclined surface; 4494, Lock block baffle; 4495, Third spring assembly; 451, Extension arm; 452, Guide bushing; 453, Positioning cylinder; 454, Guide head; 46, Adaptive compensation device; 461, First swing adjustment assembly; 4611, Trapezoidal positioning through hole; 4612, First swing shaft; 4613, First pressure plate; 462, Second swing adjustment assembly; 4621, Waist hole; 4622, Second swing shaft; 4623, Second pressure plate ; 463, First elastic plate assembly; 464, Second elastic plate assembly; 47, Snake-shaped wing flat tube; 48, The transverse cutting station; 481, First sawing motor; 482, Transverse disc cutter; 49, Longitudinal wing cutting station; 491, Second sawing motor; 492, Longitudinal disc cutter; 410, Surface treatment station; 4101, Grinding motor; 4102, Grinding wheel assembly; 411, Locking power assembly; 4111, Locking cylinder; 4112, First T-shaped pressure block; 412, Unlocking power assembly; 4121, Unlocking cylinder; 4122, Second T-shaped pressure block. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings.

[0020] As shown in Figure 1, this embodiment discloses a production system for a serpentine wing radiator, including one or more sets of wing-scraping devices 1, wing-milling and grinding devices 2, bending and forming devices 3, and multi-station cutting and shaping devices 4. These devices are connected in series along the process flow and coordinated by the same controller to achieve continuous production of the wing radiator from flat tube substrate to finished product. The wing-scraping device 1, wing-milling and grinding device 2, and bending and forming device 3 in this invention are all prior art; however, for the sake of clarity and completeness of the technical solution, these three devices are briefly described below.

[0021] The shovel wing device 1 includes a feeding component, a clamping and positioning component, a shovel wing component, and a discharging component arranged sequentially along the process. The clamping and positioning component adopts a synchronous reverse transmission mechanism driven by the same power source, which drives the upper clamping plate and the lower clamping plate to move in opposite directions relative to the middle clamping plate, thereby realizing synchronous clamping and release of the double-layer flat tube. The shovel wing component consists of two sets, symmetrically arranged on both sides of the flat tube. The shovel blade assembly moves according to a preset two-dimensional trajectory through dual-axis linkage control, thereby realizing synchronous shovel wing on both sides. The shovel blade assembly adopts a one-piece double-edged shovel blade, which can simultaneously shovel the upper and lower layers of flat tube and discharge the material through the discharging component.

[0022] The milling and grinding device 2 includes a feeding mechanism, a milling cutter mechanism for milling the finned tubes on the feeding mechanism, a grinding mechanism for grinding the finned tubes on the feeding mechanism, a cutting mechanism for cutting the finned tubes on the feeding mechanism, and an end face grinding and cutting mechanism for grinding the cut surface of the cut finned tubes. The milling cutter mechanism uses motor-driven milling cutters symmetrically arranged on both sides of the conveying track, with angles consistent with the fin inclination angle, to simultaneously complete the milling and flattening of the finned tubes during the feeding process. The grinding mechanism, driven by the drive assembly, grinds the finned tubes more evenly and precisely. The ground finned tubes are then cut by the cutting mechanism. Finally, the cut finned tubes are ground and cleaned by the end face grinding and cutting mechanism, and the end face cutting assembly performs final finishing to ensure the flatness and smoothness of the cut surface, completing the entire milling and grinding process.

[0023] The bending and forming device 3 includes a feeding and positioning unit, a conveying unit, a fin cutting unit and a bending and forming unit that are integrated sequentially along the material conveying direction, realizing full automation of the flying wing flat tube from input to bending and forming.

[0024] The feeding and positioning unit positions and protects the wing blades on the left and right sides during the conveying process, ensuring that the pipe is accurately fed in.

[0025] The conveying unit employs a relatively positioned robotic arm mechanism. By uniformly clamping the fin ends on both sides of the winged flat tube, and driven by a linear module driven by a servo motor, it achieves intermittent and precise transfer of the tube between workstations. The fin cutting unit is its core pre-processing stage. Its left and right fin cutting components, driven by a lifting mechanism, move the cutter from top to bottom, precisely cutting the wing fins on the designated side of the winged flat tube to form a smooth bending area. This process, combined with a pressing mechanism to clamp the tube and a sensing and positioning component to determine the cutting start point, ensures the stability and precision of the cutting operation. Finally, the bending and forming unit performs a key deformation operation: the clamping component of the rotating module clamps the upper and lower ribs of the flat tube, while the positioning mandrel is inserted into the bending area. Subsequently, the rotating drive structure drives the clamping component to bend the tube around the mandrel to a preset angle. After completion, the linear module drives the entire rotating module to move laterally perpendicular to the flat tube transport direction, positioning the mandrel to the next bending area, thereby achieving continuous bending of the winged flat tube at multiple positions and angles, ultimately forming a compact serpentine bend 47.

[0026] The cutting and shaping device 4 in this embodiment will be described in detail below.

[0027] As shown in Figures 2-10, the multi-station cutting and shaping device 4 includes a rotary lifting processing platform based on indexing control and a modular processing unit. The processing platform adopts a layered structure design, consisting of a base assembly 41, a rotary execution assembly, and a vertical lifting assembly 43 forming an integrated assembly from bottom to top. The base assembly 41 has a built-in servo drive system, which is connected to the rotary execution assembly through a precision worm gear transmission mechanism, enabling the rotary execution assembly to rotate and index around the vertical lifting assembly 43 at a preset angle. The vertical lifting assembly 43 is equipped with a displacement sensor, which can perform precise lifting and positioning, driving the modular processing unit to perform corresponding processing on the workpiece.

[0028] The modular processing unit is equipped with four functional workstations, which are arranged in the following order according to the process flow: workpiece exchange station, transverse cutting station 48, longitudinal wing cutting station 49, and surface treatment station 410; wherein: 1) the workpiece exchange station has loading and unloading functions, and finished workpieces are unloaded manually at this station and new workpieces to be processed are installed, so that the entire device can perform cyclic processing; 2) the transverse cutting station 48 is equipped with a dual-axis synchronous cutting system, including two sets of high-speed cutting spindles driven by high-precision servo motors and equipped with carbide tools, which can realize synchronous cutting of the ends of flat tubes on both sides; 3) the longitudinal wing cutting station 49... The precision milling device at station 49 can adjust the feed rate through the controller to achieve longitudinal milling of the left and right ends of the flat tube cut; 4) The grinding station is equipped with a dual-station grinding mechanism, including a grinding wheel set 4102 with adaptive pressure adjustment, which can complete the surface finish treatment of the tube end; Each station is equipped with a photoelectric positioning sensor. When the clamping and positioning unit carries the flat tube workpiece to the station, the photoelectric positioning sensor sends a signal to the controller to stop the rotation of the rotary actuator. At the same time, the vertical lifting assembly 43 performs a lowering action. When the lowering is in place, the corresponding processing action of the station begins.

[0029] The base assembly 41 is located at the bottom of the entire device and constitutes the reference bearing module of the device. It integrates a rotary drive module and a hollow drive shaft 4312. The rotary drive module includes a rotary motor 41a, whose output end is connected to the hollow drive shaft 4312 through an interference fit to form a torque transmission connection. The hollow drive shaft 4312 has an annular positioning boss on its axial end face.

[0030] The rotary actuator includes a rotating bearing disk 42, wherein the center of the rotating bearing disk 42 is provided with a stepped mounting hole that precisely matches the outer wall of the hollow drive shaft 4312.

[0031] When the controller sends a start signal to the rotary drive module, the servo motor starts and drives the hollow transmission shaft 4312 to rotate, which in turn drives the rotating bearing plate 42 of the rotary actuator to rotate. Each time the bearing plate 42 moves from one station to the next, it needs to rotate 90 degrees, thereby realizing the precise rotation indexing motion of the rotary actuator at a preset angle.

[0032] In some specific embodiments, the vertical lifting assembly 43 adopts a multi-stage composite guide structure, including a fixed base unit, a dynamic lifting unit, a top drive unit, and a distributed guide unit coaxially assembled; the fixed base unit includes a fixed base plate 4311 with a central shaft hole and a hollow drive shaft 4312 disposed in the central shaft hole; the hollow drive shaft 4312 is in the shape of an annulus, and a bearing assembly is disposed in the hollow part inside; the top drive unit consists of a fixed top plate 4321 and a high-precision servo drive mechanism 4322 supported by it, and the output end of the servo drive mechanism 4322 is connected to a precision ball screw pair 4323, the screw of the ball screw pair 4323 passes through the fixed top plate 4321, the dynamic lifting unit and the fixed base unit in sequence, and its end is connected to the bearing assembly inside the hollow drive shaft 4312 to form a rotating pair connection.

[0033] In some specific embodiments, the dynamic lifting unit includes a lifting support plate 433 rigidly connected to the nut seat of the ball screw pair 4323. The distributed guide unit includes guide through holes evenly distributed around the periphery of the lifting support plate 433 and guide columns 4341 disposed in the guide through holes. The upper and lower ends of each guide column 4341 are fixedly connected to the fixed top plate 4321 and the fixed bottom plate 4311 respectively by high-strength bolts, and form a clearance fit with the guide through holes of the lifting support plate 433. An oilless bushing linear motion bearing 4342 is embedded in the guide through hole, and the inner wall of the bearing maintains a clearance fit with the outer wall of the guide column 4341.

[0034] In some specific embodiments, the rotary actuator has four identical positioning jigs 44 evenly distributed along the circumferential direction for placing and clamping the serpentine wing flat tube 47; each positioning jig 44 includes two base plate assemblies 441 fixed parallel to the rotating support plate 42, and a longitudinal moving plate group 442 and a transverse moving plate group 443 are provided above the base plate assembly 441; wherein, the base plate assembly 441 is fixedly connected to the rotary platform by high-strength bolts; the base plate assembly 441 and the longitudinal moving plate group 442 are connected by a longitudinal linear guide The rail pair 444 is slidably connected; the longitudinal linear guide rail pair 444 adopts a ball-bearing slider with a precision guide rail structure to realize longitudinal stroke adjustment; the longitudinal moving plate group 442 and the transverse moving plate group 443 are slidably connected through the transverse linear guide rail pair 445 to complete the transverse displacement adjustment; the transverse moving plate group 443 includes a jig slide rail base plate 4431 and a jig base plate 4432 above it; the jig slide rail base plate 4431 is used to connect the transverse linear guide rail pair 445; the jig base plate 4432 is provided with a three-dimensional positioning component for positioning the serpentine flying wing flat tube 47.

[0035] In some specific embodiments, the three-dimensional positioning component includes a dual-side limiting module 446, a front-end positioning module 447, and a top elastic pressing module 448.

[0036] The dual-side limiting module 446 includes T-shaped clamping components 4461 threadedly connected to the left and right sides of the top of the fixture base plate 4432, respectively, for positioning and clamping the left and right sides of the workpiece to be processed to ensure processing accuracy; specifically, the clamping component 4461 has a groove 4462 at the inner corner for engaging the outermost tube wall of the workpiece; the clamping component 4461 is provided with an elastic pressing module 448 at the top, and the elastic lifting plate 4481 in this module has a slot 4463 at the bottom for engaging the protruding rib at the top of the workpiece, so that the clamping component 4461 and the elastic lifting plate 4481 cooperate to achieve positioning and clamping of the workpiece in the left and right directions and the vertical direction; the front end positioning module 447 includes a connecting plate threadedly connected to the front end of the fixture base plate 4432 and a vertical baffle above it; the vertical baffle holds the front end of the workpiece, forming a front-back direction limitation on it.

[0037] The elastic clamping module 448 includes elastic lifting plates 4481 respectively disposed on the top of the left and right clamping components 4461; each elastic lifting plate 4481 is connected to the top of the clamping component 4461 by a first guide rod 4482, and a first spring assembly 4483 is sleeved on the outside of the first guide rod 4482; the two elastic lifting plates 4481 are connected as one unit by a clamping block connecting plate 4484 disposed on the top of the two plates by threads, and a U-shaped elastic clamping block 4485 is disposed in the center of the top of the clamping block connecting plate 4484, and a second guide rod 4486 is disposed in the block body on the left and right sides of the elastic clamping block 4485, and a second spring assembly 4487 is disposed on the second guide rod 4486; the stiffness of the second spring assembly 4487 is greater than that of the first spring assembly 4483.

[0038] In some specific embodiments, the front end of the fixture base plate 4432 is provided with an elastic locking component 449. After the workpiece is loaded at the workpiece exchange station, the locking power component 411 provided at the workpiece exchange station presses down the elastic clamping block 4485. After the elastic lifting plate 4481 contacts the top of the workpiece and is pressed, the elastic locking component 449 pops out and presses down the elastic clamping block 4485, thereby locking the workpiece on the fixture base plate 4432.

[0039] The locking power assembly 411 includes a locking cylinder 4111 fixed on the lifting support plate 433 and a first T-shaped pressure block 4112 fixed on the end of the cylinder rod; the elastic clamping block 4485 is provided with a through groove 4485a with front and rear openings in the middle position, and the first T-shaped pressure block 4112 is inserted into the through groove 4485a, so that when the locking cylinder 4111 moves down, the bottom of the first T-shaped pressure block 4112 can be inserted into the through groove 4485a.

[0040] The elastic locking assembly 449 includes a locking block seat 4491 threadedly connected to the front end of the base plate 4432 of the fixture. The top of the locking block seat 4491 is threadedly connected to a locking block guide seat 4492. The locking block guide seat 4492 faces the elastic clamping block 4485 and there is a certain distance between them. The locking block guide seat 4492 has a sliding groove inside, and a locking block 4493 facing the through groove 4485a is slidably connected in the sliding groove. A locking block baffle 4494 is provided at one end of the locking block guide seat 4492 away from the elastic clamping block 4485. A bolt is provided on the locking block baffle 4494, and the end of the bolt extends into the interior of the locking block 4493. A third spring assembly 4495 is sleeved on the outside of the bolt.

[0041] Before the workpiece is locked, the elastic clamping module 448 is in the raised state, the end face of the locking block 4493 abuts against the side of the elastic clamping module 448, and the third spring assembly 4495 is compressed; when the locking cylinder 4111 moves downward and drives the bottom of the first T-shaped pressure block 4112 to insert into the through groove 4485a, the first spring assembly 4483 is first compressed into place, and then the second spring assembly 4487 is gradually compressed to a certain extent, and the through groove 4485 of the elastic clamping block 4485... When the first T-shaped pressure block 4112 descends to face the locking block 4493, the third spring assembly 4495 releases its elastic force, and the end of the locking block 4493 pops out into the through groove 4485a and presses the elastic clamping block 4485. At the same time, the elastic lifting plate 4481 presses the top of the workpiece, and the locking cylinder 4111 can move upward to return to its original position. During the above locking process, the first T-shaped pressure block 4112 is at a certain distance from the locking block 4493 in the through groove 4485a, so it will not interfere with the locking action of the locking block 4493.

[0042] The working principle of the positioning fixture 44 is as follows: ① Three-dimensional positioning and clamping: The double-sided limiting module 446 rigidly positions the workpiece in the left and right directions through the threaded T-shaped clamping assembly 4461. The groove 4462 engages with the outer tube wall of the workpiece. The elastic lifting plate 4481 in the top elastic pressing module 448 cooperates with the top protrusion of the workpiece using the slot 4463 to achieve vertical clamping. The vertical baffle of the front end positioning module 447 holds the front end of the workpiece, restricting its forward and backward movement and ensuring that the workpiece does not deviate during processing. ② Elastic locking and unlocking mechanism: Locking process: The locking cylinder 4111 on the workpiece exchange station drives the first T-shaped pressing block 4112 to insert into the through groove 4485a of the elastic clamping block 4485, compressing the first spring assembly 4483 and then the second spring assembly 4487 is compressed. When the elastic clamping block 4485... When the through slot 4485a descends to the position of the locking block 4493, the elastic lifting plate 4481 simultaneously presses down to the top of the workpiece, the third spring assembly 4495 releases its elastic force, the locking block 4493 pops out and inserts into the through slot 4485a, fixing the elastic clamping block 4485, thus completing the workpiece locking.

[0043] Unlocking process: The T-shaped pressure block of the unlocking cylinder 4121 on the surface treatment station 410 presses down, and its inclined surface pushes the locking block 4493 out of the through groove 4485a. The elastic pressing module 448 is reset under the action of the spring, and the workpiece is released from the pressing state.

[0044] After the workpiece is loaded and pressed at the workpiece exchange station, it rotates sequentially into the transverse cutting station 48, the longitudinal wing cutting station 49, and the surface treatment station 410. After the surface treatment is completed, it needs to be unlocked by the unlocking power assembly 412 located on the surface treatment station 410, so as to facilitate unloading.

[0045] The unlocking power assembly 412 includes an unlocking cylinder 4121 fixed on the lifting support plate 433 and a second T-shaped pressure block 4122 fixed to the end of the cylinder rod; the bottom of the second T-shaped pressure block 4122 can also be inserted into the through groove 4485a; unlike the locking cylinder 4111, the second T-shaped pressure block 4122 has a first inclined surface between the side and bottom of the locking block 4493, and the top of the locking block 4493 has a second inclined surface 4493a that cooperates with the first inclined surface. When the second T-shaped pressure block 4122... During the downward pressing process, the first inclined surface gradually contacts the second inclined surface 4493a and pushes the locking block 4493 outward from the through groove 4485a. When the locking block 4493 is completely disengaged from the through groove 4485a, the unlocking cylinder 4121 moves upward. At this time, the elastic pressing module 448 rises upward under the action of the first spring assembly 4483 and the second spring assembly 4487. The end of the locking block 4493 is held against the side of the elastic pressing module 448 again. At this time, the workpiece is unlocked and can be easily pulled out after rotating to the workpiece exchange station.

[0046] In some specific embodiments, the positioning fixture 44 further includes a locking positioning component for locking the rotary actuator component after it has been rotated into position. The locking positioning component adopts a composite dynamic locking mechanism, including an upper positioning actuator unit linked with the rotary actuator component and a lower positioning drive unit fixedly connected to the fixed base plate 4311. The upper positioning actuator unit includes an extension arm 451 integrally formed with the fixture base plate 4432, and two guide bushings 452 are provided at its end. The lower positioning drive unit includes a bearing flange rigidly connected to the fixed base plate 4311, and a servo-controlled positioning cylinder 453 is integrated on its surface. The end of the telescopic rod of the positioning cylinder 453 is threadedly connected to a support plate. The support plate is provided with a tapered guide head 454 that engages with the two guide bushings 452. When the rotary actuator component is locked, the telescopic rod of the positioning cylinder 453 extends outward and the tapered guide head 454 engages with the guide bushing 452.

[0047] In some specific embodiments, to facilitate the positioning of the locking and positioning component, an adaptive compensation device 46 is provided on the lateral moving plate assembly 443 of the positioning fixture 44. The adaptive compensation device 46 includes a first swing adjustment component 461 and / or a second swing adjustment component 462. The first swing adjustment component 461 includes a trapezoidal positioning through hole 4611 formed on the fixture slide rail base plate 4431 and the fixture base plate 4432. A flange is threaded to the bottom of the trapezoidal positioning through hole 4611, and a cylindrical first swing shaft 461 is provided on the flange. 2. The outer wall of the first swing shaft 4612 is rotatably connected and fixed to the inner wall of the trapezoidal positioning through hole 4611; the first pressure plate 4613 and nut are sleeved on the outer side of the top of the first swing shaft 4612; when the conical guide head 454 extends upward to the guide bushing 452, there may be a certain range of angular error between the two, but during the cooperation process, the circumferential force generated between the conical guide head 454 and the guide bushing 452 will drive the transverse moving plate group 443 to make a certain angle micro-adjustment, thereby ensuring that the conical guide head 454 is smoothly inserted into the guide bushing 452.

[0048] The first swing adjustment component 461 is located at the center of the entire positioning jig 44 to ensure adjustment accuracy.

[0049] When the distance between the conical guide head 454 and the axis of the guide bushing 452 exceeds a preset range, the conical guide head 454 may not only fail to enter the guide bushing 452, but may also lift the base plate 4432 of the fixture. Therefore, in this embodiment, the second swing adjustment component 462 is centrally located on the side of the positioning fixture 44 near the locking positioning component; specifically, it includes a waist hole 4621 on the fixture slide rail base plate 4431 and the fixture base plate 4432; the bottom of the waist hole 4621 is threaded with a flange, and a second swing shaft 4622 is provided on the flange. The axis of the second swing shaft 4622 is aligned with the axis of the first swing shaft 4612 in the front-back direction so as not to affect the swing of the first swing shaft 4612. The setting of the waist hole 4621 allows the fixture base plate 4432 to have a swing range in the left and right directions; a second ring-shaped pressure plate 4623 is sleeved on the second swing shaft 4622, and the edge of the second pressure plate 4623 presses against the fixture base plate 4432. On the step of waist hole 4621; the top of the second swing shaft 4622 is provided with external thread and matching nut, the nut is pressed on the top of the pressure plate to prevent it from coming out.

[0050] In some specific embodiments, the adaptive compensation device 46 further includes first elastic plate assemblies 463 disposed on the left and right sides of the longitudinal moving plate assembly 442 and the transverse moving plate assembly 443. The bottom of the first elastic plate assembly 463 is threadedly connected to the side wall of the longitudinal moving plate assembly 442, and the top only contacts and engages with the transverse moving plate assembly 443. The adaptive compensation device 46 also includes second elastic plate assemblies 464 centrally connected to the front and rear sides of the longitudinal moving plate assembly 442. Each second elastic plate assembly 464 has a rotating bearing disk 42 threadedly connected to it. There is a fixed block; the bottom of the second elastic plate assembly 464 contacts and engages with the corresponding fixed block; with the above settings, when the conical guide head 454 is inserted into the guide bushing 452, causing the lateral or longitudinal moving plate group to swing left and right in position adjustment, the first elastic plate assembly 463 or the second elastic plate assembly 464 will generate a certain amount of stored force; when the conical guide head 454 is withdrawn from the guide bushing 452, the first elastic plate assembly 463 or the second elastic plate assembly 464 will rebound, causing the corresponding lateral moving plate group 443 or longitudinal moving plate group 442 to return to its position.

[0051] The adaptive compensation device 46, through its relatively flexible structural design, ensures the smooth positioning of the tapered guide head 454 and the guide bushing 452.

[0052] In some specific embodiments, the transverse cutting station 48 includes a dual-axis synchronous cutting system, specifically including two first sawing motors 481 and transverse disc cutters 482 respectively located at the ends of their main shafts; the first sawing motors 481 are mounted on the lifting support plate 433; the transverse disc cutters 482 are single saw blades made of high-hardness alloy material; after the workpiece is loaded, it rotates from the workpiece exchange station to the transverse cutting station 48. After the sensor detects that the workpiece is in place, it transmits a signal to the controller. The controller sends a signal to the top drive unit of the vertical lifting assembly 43, and the servo drive mechanism 4322 drives the lifting support plate 433 of the dynamic lifting unit to descend a specified height; the controller controls the first sawing motors 481 to rotate, and the transverse moving plate group 443 moves and feeds the workpiece laterally, thereby cutting off the excess parts of the two ends of the workpiece; then the transverse moving plate group 443 returns to its original position. After the sensor detects this, it sends a signal to the top drive unit of the vertical lifting assembly 43 through the controller, and the lifting support plate 433 rises and returns to its original position.

[0053] In some specific embodiments, the longitudinal wing-cutting station 49 includes a precision milling device, specifically including two second sawing motors 491 and longitudinal disc cutters 492 respectively located at their ends; each longitudinal disc cutter 492 has a double saw blade structure, that is, there is a gap of a specified distance between the two saw blades, which is the thickness of the end of the workpiece to be trimmed; in this embodiment, the thickness accuracy of the end of the workpiece is ±0.1 mm, so as to facilitate the subsequent welding of the pipe fittings; after the workpiece is cut off, it rotates from the transverse cutting station 48 to the longitudinal wing-cutting station 49. After the sensing device detects that the workpiece is in place, it transmits a signal to the controller. The controller sends a signal to the top drive unit of the vertical lifting assembly 43, and the servo drive mechanism 4322 drives the lifting support plate 433 of the dynamic lifting unit to descend a specified height; the controller controls the second sawing motors 491 to rotate, and the root of the workpiece to be processed is directly between the double saw blades. The longitudinal moving plate assembly 442 moves and feeds along the longitudinal direction, thereby removing the excess part on the left and right sides of the root of the workpiece to obtain the desired thickness for subsequent processing.

[0054] In some specific embodiments, the surface treatment station 410 includes a dual-station grinding mechanism, specifically including two grinding motors 4101 and corresponding longitudinal grinding wheel sets 4102; each grinding wheel set 4102 includes a wire wheel driven by the grinding motor 4101, and the wire wheel uses a steel brush on its surface to grind and clean the surface of the product after wing cutting in order to remove burrs and flash, etc.; after the workpiece is wing-cut, it rotates from the longitudinal wing-cutting station 49 to the surface treatment station 410. After the sensing device detects that the workpiece is in position, it transmits a signal to the controller. The controller sends a signal to the top drive unit of the vertical lifting assembly 43, and the servo drive mechanism 4322 drives the lifting support plate 433 of the dynamic lifting unit to descend to a specified height; the controller controls the grinding motor 4101 to rotate, and through the cooperation of the moving plate group, the transverse moving plate group 443 and the longitudinal moving plate group 442, the left and right end faces of the root of the workpiece are ground respectively. After completion, the vertical lifting assembly 43 rises and returns to its original position.

[0055] After surface treatment, the rotary actuator carries the workpiece to complete all processing steps. The workpiece rotates back to the workpiece exchange station for unloading, and a new workpiece is loaded to begin a new round of processing. The processing technology of the production system for the serpentine wing radiator of the present invention is as follows: S1, Double-sided wing forming: In the wing forming device 1, the double-layer flat tube is first automatically loaded and precisely positioned, and is stably clamped by a set of synchronous reverse clamping mechanisms. Subsequently, the wing assemblies symmetrically arranged on both sides of the flat tube begin to work. Controlled by the dual-axis linkage system, the specially designed one-piece double-edged wing moves according to the preset trajectory, completing the synchronous wing forming of the double-sided wing fins of the upper and lower layers of flat tubes in one go, laying the foundation for subsequent processing; S2, Fin finishing and fixed-length cutting: The wing tube after wing forming enters the milling and grinding device 2. First, the fins are milled flat by symmetrically arranged inclined milling cutters to ensure that all fins have the same width. Then, the wing is uniformly ground by the roller brush assembly that can swing up and down, improving surface quality and dimensional accuracy. Finally, the tube is precisely cut. The tube is cut to the required length, and the cut surface is polished by roller brushing and precision cutting to obtain a smooth and clean end face; S3, bending and forming: After the winged flat tube passes through the feeding and positioning unit with protective function, it is held and transported to the bending and forming device 3 by a robot arm; before bending, the special wing cutting assembly will precisely cut off the wing in the designated area to form a smooth surface to be bent; then the rotating module clamps the tube, allowing the positioning mandrel to be inserted into the bending area, driving the tube to bend around the axis to a predetermined angle, and realizing multi-position continuous bending through the lateral moving module, finally forming The structure forms a compact serpentine pipeline; S4, multi-station cutting and shaping: the bent workpiece completes subsequent processing on the rotating platform of the cutting and shaping device 4; the workpiece is first automatically locked on the positioning fixture 44, and then the platform rotates in 90-degree increments, passing through three processing stations in sequence: first, the excess material at both ends is cut off by the dual-axis synchronous cutting system; then, the end face is processed to the precise thickness by the precision milling device; finally, the end face burrs are cleaned by the grinding mechanism; after all processes are completed, the workpiece is automatically unlocked and rotated back to the loading station to realize cyclic production.

[0056] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A serpentine wing radiator production system, comprising: A shovel-shaped device is used to simultaneously form wing blades on both sides of a double-layer flat tube. The device includes a milling and grinding unit for milling, grinding, cutting to a fixed length, and finishing the end face of the fins; a bending and forming unit for continuously bending the flat tube into a serpentine shape after cutting off the fins in a designated area; and a cutting and shaping unit for rotary indexing cut-off, fin cutting, and surface treatment of the serpentine flat tube end; characterized in that it also includes a multi-station cutting and shaping unit, comprising a rotary lifting processing platform, which is a layered integrated assembly consisting of a base assembly, a rotary execution assembly, and a vertical lifting assembly from bottom to top; the base assembly has a built-in servo drive system that drives the rotary execution assembly to rotate and index around the vertical lifting assembly at a preset angle through a worm gear transmission mechanism; the vertical lifting assembly is equipped with a displacement sensor and a multi-level composite guide structure for driving the modular processing unit to perform lifting and positioning; the rotary execution assembly has multiple positioning jigs distributed circumferentially at equal intervals, and the positioning jigs are equipped with three-dimensional positioning components for positioning the serpentine flying wing flat tube; the modular processing unit includes a workpiece exchange station, a transverse cutting station, a longitudinal fin cutting station, and a surface treatment station arranged sequentially according to the process.

2. The serpentine wing radiator production system according to claim 1, characterized in that, The base assembly is located at the bottom of the entire device and constitutes the reference bearing module of the device. It integrates a rotary drive module and a hollow drive shaft. The rotary drive module includes a servo motor, and its output end is connected to the hollow drive shaft through an interference fit to transmit torque. The hollow drive shaft has an annular positioning boss on its axial end face. The rotating bearing disk of the rotary actuator has a stepped mounting hole at its center that mates with the outer wall of the hollow drive shaft to realize indexing rotation driven by the servo motor.

3. The serpentine wing radiator production system according to claim 2, characterized in that, The vertical lifting assembly includes: a fixed base unit, a dynamic lifting unit, a top drive unit, and a distributed guide unit, all coaxially assembled. The fixed base unit comprises a fixed base plate with a central shaft hole and a hollow drive shaft disposed within the central shaft hole. The hollow drive shaft is annular in shape, with a bearing assembly disposed in its hollow interior. The top drive unit consists of a fixed top plate and a servo drive mechanism it supports. The output end of the servo drive mechanism is connected to a ball screw pair, the lead screw of which sequentially passes through the fixed top plate, the dynamic lifting unit, and the fixed base unit, and its end is connected to the bearing assembly inside the hollow drive shaft to form a rotating pair. The dynamic lifting unit includes a lifting support plate rigidly connected to the nut seat of the ball screw pair. The lifting support plate has guide holes distributed at equal angles around its periphery, which are clearance-fitted with the guide columns of the distributed guide unit. A linear motion bearing is embedded in the guide holes, and the inner wall of the bearing is clearance-fitted with the outer wall of the guide column.

4. The serpentine wing radiator production system according to claim 1, characterized in that, The positioning fixture includes: a base plate assembly fixed on a rotating bearing plate, with a longitudinal moving plate group and a transverse moving plate group above the base plate assembly; the base plate assembly is fixedly connected to the rotary platform; the base plate assembly and the longitudinal moving plate group are slidably connected through a longitudinal linear guide pair; the longitudinal moving plate group and the transverse moving plate group are slidably connected through a transverse linear guide pair.

5. The serpentine wing radiator production system according to claim 1, characterized in that, It also includes a locking and positioning assembly, which includes: an extension arm integrally formed with the base plate of the positioning jig, the end of which is provided with two precision guide bushings; a positioning cylinder fixed to the base assembly, the end of which is provided with a tapered guide head that is inserted into the guide bushing for dynamic locking after indexing rotation.

6. The serpentine wing radiator production system according to claim 5, characterized in that, The transverse moving plate assembly is equipped with an adaptive compensation device, including: a first swing adjustment assembly, including a trapezoidal positioning through hole on the transverse moving plate assembly, wherein a rotatable first swing shaft is installed in the trapezoidal positioning through hole, and a first pressure plate and nut are sleeved on the outside of the first swing shaft to allow fine adjustment of the angle of the transverse moving plate assembly; a second swing adjustment assembly, including a trapezoidal waist hole on the transverse moving plate assembly, wherein a rotatable second swing shaft is installed at the bottom of the trapezoidal waist hole, and a second pressure plate and nut are sleeved on the outside of the second swing shaft, with its axis aligned with the first swing shaft; a first elastic plate assembly, located on the left and right sides of the longitudinal moving plate assembly and the transverse moving plate assembly, with its bottom connected to the longitudinal moving plate assembly and its top in contact with the transverse moving plate assembly; and a second elastic plate assembly, centrally located on the front and rear sides of the longitudinal moving plate assembly, with its bottom in contact with the fixing block on the indexing bearing plate.

7. The serpentine wing radiator production system according to claim 1, characterized in that, The transverse cutting station includes a dual-axis synchronous cutting system, comprising two sets of first sawing motors and transverse disc cutters driven by them; the first sawing motors are mounted on the lifting support plate of the vertical lifting assembly, and the transverse disc cutters are used to synchronously cut off the ends of the flat tubes.

8. The serpentine wing radiator production system according to claim 1, characterized in that, The longitudinal wing cutting station includes a precision milling device comprising two sets of second sawing motors and a double-saw blade longitudinal disc cutter driven by them; the spacing between the double saw blades matches the thickness of the end of the flat tube to be processed, and the thickness milling is completed by feeding the longitudinal moving plate group.

9. The serpentine wing radiator production system according to claim 1, characterized in that, The surface treatment station includes a dual-station grinding mechanism, comprising two sets of grinding motors and an adaptive pressure-adjustable longitudinal grinding wheel assembly; the grinding wheel assembly achieves surface finish treatment of the pipe end through the coordinated movement of transverse and longitudinal moving plates.

10. The processing method of the serpentine wing radiator production system as described in any one of claims 1 to 9, characterized in that, Includes the following steps: S1. Double-sided shovel wing forming: In the shovel wing device, the flat tube is first positioned and clamped; Subsequently, the shovel assemblies symmetrically arranged on both sides of the flat tube drive the shovels to move along a preset trajectory to synchronously shovel and shape the fins on both sides of the flat tube; S2, Fin finishing and length cutting: The finned tube after shoveling enters the milling and grinding device. After the symmetrically arranged milling cutters mill the fins flat, the roller brush assembly uniformly grinds the fins; finally, the tube is cut to the required length, and the cut surface is roller brushed and precision machined to obtain a smooth and clean end face; S3, Bending and forming: Before bending, the fin cutting assembly removes the fins in a designated area to form a smooth surface to be bent; then the rotating module clamps the tube and positions the core. The shaft is inserted into the bending area, driving the pipe to bend around the shaft to a predetermined angle. Multi-position continuous bending is achieved through a lateral movement module, ultimately forming a compact serpentine pipe structure. S4, Multi-station Cutting and Shaping: The bent workpiece is automatically locked onto the positioning fixture on the rotating platform of the cutting and shaping device. The platform then rotates in 90-degree increments, passing through three processing stations in sequence: first, the dual-axis synchronous cutting system cuts off the excess material at both ends; then, a precision milling device processes the end face to the precise thickness; finally, a grinding mechanism cleans the burrs on the end face. After all processes are completed, the workpiece automatically unlocks and rotates back to the loading station, achieving cyclic production.

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