Guide wire device, binding equipment and binding method

Abstract

This invention provides a wire guiding device, a binding device, and a binding method. The wire guiding device includes a U-shaped arm arranged around three sides of a heat sink. The U-shaped arm forms a first guide arm and a second guide arm on both sides of the heat sink. The U-shaped arm includes a fixed U-shaped plate and a movable U-shaped plate movably arranged on one side of the fixed U-shaped plate. A wire feeding groove is provided on either side or both sides of the fixed U-shaped plate and the movable U-shaped plate, extending from the end of the first guide arm to the end of the second guide arm and penetrating the entire U-shaped arm. This wire guiding device provides a channel for the metal wire to wrap around the heat sink. Driven by the wire feeding head, the metal wire can advance in the wire guiding device to achieve (partial) wrapping around the heat sink. This process of the metal wire is achieved solely by the drive of the wire feeding head, without the need for a corresponding motion mechanism on the wire guiding device. This simplifies the structural design and control logic of the equipment, ensuring the maintainability and reliability of the equipment.

Description

Technical Field

[0001] This invention relates to the technical field of pre-welding bundling equipment for brazed components, specifically to a wire guide device, bundling equipment, and bundling method. Background Technology

[0002] Vehicles and other equipment are typically equipped with radiators (condensers) to accelerate the dissipation of heat from critical heat sources such as engines, ensuring normal equipment operation. Radiators are assembled in batches using brazing, improving production efficiency. To ensure the quality of the finished product after welding, radiator parts need to be bundled together to fix their shape. Existing technologies include equipment that performs this bundling entirely manually or semi-automatically.

[0003] Specifically, the utility model patent CN205022953U, entitled "A Radiator Core Bundling Device," discloses a bundling tool for manual bundling operations. By holding the tool and rotating its hook, the end of the bundling wire rope is knotted and fixed. This is just one example of a tool used in manual operations. Furthermore, the utility model application CN206143547U, entitled "Automotive Radiator Core Bundling Machine," also discloses a semi-automatic fixture for bundling radiators, used to constrain the radiator core into a predetermined shape to facilitate bundling. In reality, in manual operations, precise and standardized control cannot be achieved over the shape and structure of the radiator, the fixed position of the wire rope on the radiator, and the tightness of the knot, making it difficult to effectively guarantee the post-weld quality of the radiator brazing. Moreover, the numerous and cumbersome steps involved in manual operation limit the efficiency of manual work.

[0004] A utility model patent with publication number CN209667434U, entitled "A Fully Automatic Core Bundling Robot," discloses a core bundling device. Its wire feeding and bundling sections include pneumatic shears and gripper tips for cutting and clamping the metal wire, respectively. Because these two components are independently configured and driven, the bundling head structure becomes more complex, making daily maintenance inconvenient. Furthermore, it necessitates determining and controlling the sequence of the pneumatic shears and gripper tips in the control program, further complicating the programming. Additionally, the metal wire is wound around the core by a chain drive, requiring a separate drive and mechanical component for the clamping head, further complicating the overall control logic and structure of the device. Summary of the Invention

[0005] To address the problems of existing brazing component bundling operations relying on manual operation, which makes it difficult to achieve standardized control of bundling quality and limits the improvement of production efficiency, and the complex structure and overall control logic of existing brazing component bundling equipment, this invention provides a wire guide device, bundling equipment, and bundling method.

[0006] The technical solution of the present invention provides a wire guiding device for bundling metal wires on a heat sink, including a U-shaped arm arranged around three sides of the heat sink, wherein the U-shaped arm forms a first guide arm and a second guide arm on both sides of the heat sink respectively.

[0007] The U-shaped arm includes a fixed U-shaped plate and a movable U-shaped plate that is movably disposed on one side of the fixed U-shaped plate. A wire feeding groove is provided on either side or both sides of the fixed U-shaped plate and the movable U-shaped plate, extending from the end of the first guide arm to the end of the second guide arm and penetrating the entire U-shaped arm.

[0008] Preferably, the wire guide device is further provided with at least one positioning component, the positioning component including at least two opposing guide limiting blocks extending into the U-shaped opening, a through guide gap being formed between the two guide limiting blocks for the passage of the metal wire, and the end of the positioning component being close to the surface of the heat sink when in use to prevent the metal wire from coming out of the guide gap.

[0009] Preferably, the guide limiting block is movable.

[0010] Preferably, the guide limit block is configured to move normally along the edge of the U-shaped arm.

[0011] The present invention also provides a binding device, including the wire guiding device as described in any one of claims 1-4, and further including a servo platform. The servo platform includes a movable platform that is movable along the normal direction of the wire feeding direction. A fixed support member is provided on one side of the movable platform along the normal direction of the feeding direction, and a movable support member is provided on the other side. The fixed support member is fixed in position on the movable platform, and the movable support member is movable along the normal direction of the feeding direction on the movable platform.

[0012] Preferably, both the fixed support and the movable support are provided with clamping components with adjustable spacing along the feeding direction to clamp the heat sink within the spacing of the clamping components.

[0013] Preferably, the clamping assembly includes a fixed clamping end and a movable clamping end arranged in a direction parallel to the feed direction, wherein the movable clamping end is movable in the feed direction and the fixed clamping end is fixed.

[0014] Preferably, the clamping assembly is provided with a limiting block that restricts the normal position of the heat sink in the feed direction.

[0015] The technical solution of the present invention also provides a strapping method adapted to any of the above-mentioned strapping devices, comprising the following steps:

[0016] Positioning steps: The mobile platform moves to the predetermined position in the normal direction of the feed direction, so that the radiator enters the U-shaped opening in the normal direction of the feed direction and stops at its position to be tied, aligned with the U-shaped opening.

[0017] Wire feeding step: The wire feeding head moves and aligns the metal wire with the wire feeding groove on one of the first guide arm and the second guide arm. The metal wire is driven to move forward along the wire feeding groove and exits from the other end of the wire feeding groove.

[0018] Wire drawing step: The take-up mechanism captures the end of the metal wire at one end of the wire feeding groove, moves to the other end of the wire feeding groove, and feeds the end of the metal wire into the wire feeding head;

[0019] Material collection steps: At the same time as or after the moving U-shaped plate opens, the wire feeding head tightens the metal wire;

[0020] Knotting step: After the take-up step, the wire feeder cuts and clamps the metal wire, while simultaneously clamping the end of the metal wire from the take-up mechanism; then the wire feeder rotates a preset number of turns, causing the two ends of the metal wire to spirally wrap together at the knot.

[0021] Preferably, during the knotting step of the wire feeding head, the wire feeding head moves along the axis of the wire guiding device while the clamping arm rotates.

[0022] The wire guiding device also includes a wire guiding mechanism, which provides a channel for the metal wire to wrap around the heat sink. Driven by the wire feeding head, the metal wire can advance in the wire guiding device to (partially) wrap around the heat sink. This process of the metal wire is only achieved by the drive of the wire feeding head, and there is no need to set a corresponding motion mechanism on the wire guiding device. This can simplify the structural design and control logic of the equipment and ensure the maintainability and reliability of the equipment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the strapping device of the present invention;

[0024] Figure 2 This is a schematic diagram of the wire feeding device of the present invention;

[0025] Figure 3 This is a schematic diagram of the operation of the wire feeding mechanism 12 of the present invention;

[0026] Figure 4 This is a schematic diagram of the wire feeding head 11 of the present invention;

[0027] Figure 5 This is a schematic diagram of the AA cross-section of the wire feed head 11 of the present invention;

[0028] Figure 6 For the present invention Figure 5 A magnified view of a portion of point B in the middle;

[0029] Figure 7 This is a schematic diagram of another embodiment of the clamping arm 112 of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of the guide wire device 4 of the present invention;

[0031] Figure 9 This is a schematic diagram of the fixed U-shaped plate 431 and the movable U-shaped plate 432 of the wire guide device 4 of the present invention;

[0032] Figure 10 This is a schematic diagram of the specific structure of the receiving mechanism 13 of the present invention;

[0033] Figure 11 This is a schematic diagram of the servo platform 3 of the present invention.

[0034] In the picture,

[0035] W: Metal wire X: Radiator F: Feed direction O: Axis 1: Wire feeding device 2: Feeding device 3: Servo platform 4: Wire guiding device 11: Wire feeding head 12: Wire feeding mechanism 13: Take-up mechanism 21: Material roll roller 22: Guide mechanism 31: Moving platform 4A: U-shaped opening 41: First guide arm 42: Second guide arm 43: U-shaped arm

[0036] 44: Positioning component 4W: Wire feeding groove 11: Action part 112: Clamping arm 113: Outer cylinder 114: Inner cylinder 115: Drive component 11W: Wire threading hole 121: Storage component 122: Wire feeding component 123: Straightening component 131: Clamping component 132: Clamping seat 133: Lifting slide rail 134: Lifting cylinder 221: Guide wheel 311: Fixed support component 312: Moving support component 313: Clamping component 431: Fixed U-shaped plate 432: Moving U-shaped plate 441: Guide limit block 1101: Guide rail 1102: Telescopic component 1103: Power unit 1104: Synchronous belt 1121: Drive linkage

[0037] 112W: Working surface; 1122: Engaging part; 1123: Shearing blade; 1124: Elastic part; 1141: Connector.

[0038] 1211: Follower wheel; 1212: Storage wheel; 1221: Drive wheel; 1222: Pressure wheel; 1231: Straightening wheel

[0039] 3131: Fixed clamping end; 3132: Movable clamping end; 3133: Limiting block; 441W: Guide gap Detailed Implementation

[0040] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. In this specification, the dimensions of the drawings do not represent the actual dimensions. They are only used to illustrate the relative positional and connection relationships between the components. Components with the same name or the same reference numeral represent similar or identical structures and are limited to illustrative purposes.

[0041] This invention aims to provide a bundling device to automate the bundling of brazed components, replacing existing manual methods and thereby improving the quality stability and production efficiency of the bundling operation. The overall structure of the bundling device of this invention is as follows: Figure 1 As shown. The binding device includes a feeding device 2, a wire feeding device 1, and a servo platform 3 arranged sequentially along the feeding direction F of the metal wire W, and also includes a wire guiding device 4. The radiator X is fixed on the servo platform 3; the metal wire W emitted by the feeding device 2 first passes through the wire feeding device 1 and enters the wire guiding device 4, and then returns to the wire feeding device 1, thus completing one revolution around the radiator X; after the wire feeding device 1 cuts the metal wire W, it ties a knot at the end of the metal wire W to complete the binding operation of the metal wire W to the radiator X.

[0042] The feeding device 2 includes a material roll 21 on which a material roll wound with metal wire W is installed, and a guide mechanism 22 for guiding the metal wire W. Multiple guide wheels 221 are provided on the guide mechanism 22 to smoothly guide the metal wire W fed out by the material roll 21 into the wire feeding device 1.

[0043] The wire feeding device 1 includes a wire feeding mechanism 12 and a wire feeding head 11 arranged sequentially along the wire feeding direction F of the wire W. The wire feeding mechanism 12 drives the wire W to feed, and the wire feeding head 11 is used to feed the wire W out of the wire guiding device 4 and perform other corresponding operations.

[0044] The servo platform 3 is located in front of the wire feed head 11 along the wire feed direction F. The servo platform 3 is used to support and fix the heat sink X. When the heat sink X is temporarily fixed on the servo platform 3, it is usually deviated to one side in the wire feed direction F so that the wire W passes through the outside of the surface of the heat sink X after being fed out from the wire feed head 11.

[0045] The wire guide device 4 is positioned above the servo platform 3 and has a U-shaped opening 4A facing the wire feed head 11. When the heat sink X on the wire feed head 11 is placed on the servo platform 3, it is simultaneously located inside the U-shaped opening 4A of the wire guide device 4. The two sides of the U-shaped opening 4A are a first guide arm 41 and a second guide arm 42, respectively. The wire feed groove 4W passes through the first guide arm 41 and the second guide arm 42 and connects to the root of the U-shaped opening 4A. The wire feed groove 4W on one of the first guide arm 41 and the second guide arm 42 is aligned with the wire feed head 11 to receive the metal wire W from the wire feed head 11. After the metal wire W has wrapped around the heat sink X almost once from the first guide arm, it extends out from the wire feed groove 4W on the other of the first guide arm 41 and the second guide arm 42 and is captured again by the wire feed head 11, forming a complete loop around the heat sink X. The heat sink X is secured by tightening and winding between the ends of the metal wire W located on both sides of the heat sink X.

[0046] Figure 2 This is a schematic diagram of the wire feeding device 1. In addition to the wire feeding mechanism 12 and the wire feeding head 11, it may optionally include a take-up mechanism 13.

[0047] The wire feeding mechanism 12 is located downstream of the feeding device 2 along the feed direction F, receiving the metal wire W fed from the feeding device 2. The wire feeding mechanism 12 includes a storage component 121, a wire feeding component 122, and a straightening component 123 arranged along the moving path of the metal wire W. The storage component 121 includes at least two fixed follower wheels 1211 and a movable storage wheel 1212 located away from the feed direction F. After passing one follower wheel 1211, the metal wire W passes around the storage wheel 1212 and then exits from the other follower wheel 1211. Thus, when the position of the storage wheel 1212 changes, the length of the portion of the metal wire W located between the two follower wheels 1211 changes, thereby realizing the storage function of the wire feeding mechanism 12. The storage wheel 1212 is positioned to move normally along the line connecting the follower wheels 1211 so that the bending angle of the metal wire W on both sides is not too large, thus reducing feed resistance. The storage rollers 1212 are typically arranged to slide freely on one or more sets, preferably with the sliding direction perpendicular to the feed direction F of the wire W. A wire feeding assembly 122 is arranged downstream of the storage assembly 121 along the feed direction F. The wire feeding assembly 122 includes a drive wheel 1221 that frictionally contacts the wire W, driving the wire W downstream in the feed direction F. Typically, a pressure wheel 1222 is positioned opposite the drive wheel 1221 to the wire W, pressing the wire W between them to provide sufficient lateral pressure and ensure minimal slippage of the wire W on the drive wheel 1221 during operation. Optionally, one or more sets of moving guide rollers can be arranged upstream of the wire feeding assembly 122 to guide the wire W from the storage assembly 121 into the wire feeding assembly 122. The straightening assembly 123 is located downstream of the wire feeding assembly 122. The straightening assembly 123 includes multiple straightening rollers 1231 arranged on both sides of the straight line along the feeding direction F, thus straightening the metal wire W before feeding it out. While it is preferable to position the straightening assembly 123 downstream of the wire feeding assembly 122 to ensure the straightness of the output from the wire feeding mechanism 12 and provide a more stable operating space for subsequent operations, it is also acceptable to position the straightening assembly 123 upstream of the wire feeding assembly 122. In this case, the straightening assembly 123 can be positioned between the storage assembly 121 and the wire feeding assembly 122, and the straightening axis of the straightening assembly 123 and the output axis of the wire feeding assembly 122 are preferably collinear to ensure that the metal wire W does not bend again after straightening.

[0048] See Figure 3The schematic diagram illustrates the working principle of the material storage device as follows: The feeding resistance of the material roll 21 is greater than the feeding resistance of the storage wheel 1212. During the feeding process, the wire feeding assembly 122 drives the metal wire W forward. Regardless of the position of the storage wheel 1212, as the metal wire W advances, the portion of the metal wire W located in the storage assembly 121 shortens due to its continuous forward feeding. The storage wheel 1212 is then lifted to its upper stop point (point A), and the subsequent metal wire W is ejected by the rotation of the material roll 21. Simultaneously, during the binding process, since the pre-feeded metal wire W needs to be wound around the radiator X almost once via the wire feeding groove 4W, and then needs to be tightly bound against the surface of the radiator X during knotting, it is necessary to retract the excess metal wire W before knotting. During the unloading process, the wire feeding assembly 122 drives the metal wire W to retract in the reverse direction along the feed direction F. At this time, the metal wire W in the storage assembly 121 becomes longer, and the storage wheel 1212 falls down to maintain tension (at point B), storing the portion recovered during unloading in the storage assembly 121. Based on the above process, the feed roll 21 of the feeding device 2 can be set to be unpowered. Even in this case, it can still be ensured that the metal wire W is always in a pre-tensioned state in the system during the unloading process, and the metal wire W will not fall out of other pulleys due to slack, thus preventing system failure. At the same time, in the above storage assembly 121 design, the movement of the storage wheel 1212 is achieved by the drive of the wire feeding assembly 122 and the self-weight of the storage wheel 1212, eliminating the need for an additional power source in the storage assembly 121 and simplifying the system structure.

[0049] Figure 4 This is a schematic diagram of the wire feeding head 11. The main body of the wire feeding head 11 is movable along the feed direction F on the base of the wire feeding device 1. The wire feeding head 11 includes an actuating part 111 arranged along the feed direction F of the metal wire W. The metal wire W passes through the actuating part 111. At the exit end of the metal wire W on the actuating part 111, there are clamping arms 112 arranged on both sides of the metal wire W. The relative opening and closing of the two clamping arms 112 realizes the clamping and cutting of the metal wire W. In this embodiment, the wire feeding head 11 is movable on two sets of parallel guide rails 1101 on the base of the wire feeding device 1, and is driven by a telescopic member 1102 arranged parallel to the guide rails 1101 between the base and the wire feeding head 11. The telescopic member 1102 is commonly a cylinder, electric cylinder, or lead screw rotation pair. The wire feeding head 11 is also provided with a power device to drive the actuating part 111, and the two are connected by a synchronous belt drive.

[0050] Figure 5 for Figure 4A cross-sectional view along the AA direction. The actuating unit 111 includes an outer cylinder 113 and an inner cylinder 114 arranged along the same axis O. The two are nested together and can rotate freely relative to each other and move relative to each other along the axis. The inner cylinder 114 rotates around the axis O via a synchronous belt 1104 driven by the aforementioned power device 1103. A wire-passing hole 11W is coaxially opened on the outer cylinder 113, through which the metal wire W passes. The outer cylinder 113 is driven to move in a controlled manner along the axis O by a driving member 115 located at the wire-in end of the outer cylinder 113. Two opposing sets of clamping arms 112 are provided on the wire-out side of the inner cylinder 114. The clamping arms 112 are positioned on both sides of the metal wire W. One end of the clamping arm 112 is rotatably mounted on the outer cylinder 113, which allows the opposing clamping arms 112 to rotate relative to each other. The other end is provided with a working surface 112W for clamping and cutting the metal wire W. The clamping arm 112 is rotatably connected to the connector 1141 via a drive link 1121. The connector 1141 is located at the outlet end of the inner cylinder 114 and can rotate freely relative to the inner cylinder 114 around the axis O. Therefore, when the inner cylinder 114 is controlled to move along the axis O, the clamping arm 112 is driven to open and close via the connector 1141 and the drive link 1121, thus controlling the metal wire W. Simultaneously, the clamping arm 112 may rotate around the axis O together with the outer cylinder 113. The connector 1141 ensures that the inner cylinder 114 controls the opening and closing of the clamping arm 112 when it rotates around the axis O.

[0051] Figure 6 for Figure 5 A partially enlarged schematic diagram at point B. The working surface 112W includes a gripping portion 1122 and a shearing blade 1123 located at the end of the clamping arm 112. After the metal wire W passes through the threading hole 11W, it passes through the gripping portion 1122 and the shearing blade 1123 between the two clamping arms 112. To ensure that the gripping portion 1122 can still clamp the metal wire W after it is cut, the shearing blade 1123 is usually located upstream of the gripping portion 1122 along the feed direction F. That is, when the metal wire W is fed, it first passes through the shearing blade 1123 and then through the gripping portion 1122. After completing one revolution around the radiator X, the head of the wire W returns to the engagement part 1122, and the inner cylinder 114 moves along the axis O so that the two clamping arms 112 come closer together, the shearing blade 1123 cuts the wire W, and at the same time the engagement part 1122 clamps the wire W. Then the outer cylinder 113 drives the clamping arms 112 to rotate so that the end of the wire W clamped in the clamping arms 112 is twisted to complete the knot.

[0052] However, in actual use, the timing of the action of the shearing blade 1123 and the engagement part 1122 is difficult to match and adjust. This results in situations where, when the engagement part 1122 can clamp the metal wire W, the shearing blade 1123 cannot reliably cut the metal wire W; or, conversely, the shearing blade 1123 cuts the metal wire W prematurely, but the engagement part 1122 cannot clamp it down properly, causing the metal wire W to disengage from the engagement part 1122. Both of these issues cause the invention's operation to stop, thus affecting production stability. See [link to relevant documentation] for further details. Figure 6 and Figure 7 In the schematic diagram of the embodiment, an elastic part 1124 is also provided on the biting part 1122 or at the connection between the biting part 1122 and the shearing blade 1123. This allows for a greater overlap in the effective action time between the biting part 1122 and the shearing blade 1123. That is, under the action of the elastic part 1124, the biting part 1122 can have sufficient clamping force to clamp the metal wire W while still retaining a certain amount of compressibility, providing space for the shearing blade 1123 to continue moving. This allows the shearing blade 1123 to cut short after being clamped by the biting part 1122, thereby ensuring the working reliability of the wire feeding head 11.

[0053] Figure 8 This is a schematic diagram of the wire guiding device 4. The wire guiding device 4 includes U-shaped arms 43 arranged around three sides of the heat sink X. The U-shaped opening 4A formed by the U-shaped arms 43 faces the wire feeding device 1, and a first guide arm 41 and a second guide arm 42 are formed on both sides of the heat sink X, respectively. (Reference) Figure 9 A schematic diagram of a fixed U-shaped plate 431 and a movable U-shaped plate 432 is shown. The U-shaped arm 43 includes a fixed U-shaped plate 431 and a movable U-shaped plate 432 that is controlled to move along the surface normal of one side of the fixed U-shaped plate 431. A wire feeding groove 4W is provided on one or both sides of the fixed U-shaped plate 431 and the movable U-shaped plate 432, extending from the end of the first guide arm 41 to the end of the second guide arm 42 and passing through the entire U-shaped arm 43. When the movable U-shaped plate 432 moves to abut against the fixed U-shaped plate 431, the wire feeding groove 4W is closed, leaving only two openings on the first guide arm 41 and the second guide arm 42. The metal wire W enters from one opening, travels along the wire feeding groove 4W around the U-shaped arm 43 almost one lap, and exits through the opening on the other side, where it is received by the wire feeding device 1. When the moving U-shaped plate 432 moves away from the fixed U-shaped plate 431, the wire feeding groove 4W opens, and the metal wire W comes out from the gap between the fixed U-shaped plate 431 and the moving U-shaped plate 432 and is wound onto the heat sink X.

[0054] The wire guide device 4 also includes at least one positioning component 44. The positioning component 44 includes at least two opposing guide limiting blocks 441 extending into the U-shaped opening 4A. A through guide gap 441W is formed between the two guide limiting blocks 441. The guide gap 441W is typically set to be equal to or slightly larger than the diameter of the metal wire W. When the guide limiting block 441 approaches the heat sink X, the metal wire W moves from the guide gap 441W into the surface of the heat sink X. Besides guiding the metal wire W during its exit from the wire feeding groove 4W, the guide gap 441W also restricts the positional movement of the metal wire W on the surface of the heat sink X during subsequent binding, thus ensuring that the metal wire W is precisely bound and fixed at a specific position on the heat sink X. Multiple metal wires W can be arranged in the U-shaped opening 4A to precisely control the position of the metal wire W along the surface of the heat sink X. Furthermore, considering compatibility with different heat sinks X and ease of loading heat sink X onto the servo platform 3, the guide limit block 441 is preferably movable, for example, it can be moved as follows: Figure 7 As shown, the configuration is such that it moves outward along the three sides of the U-shaped arm 43 in the normal direction. During the feeding operation, the guide limit block 441 retracts from the working position, providing more space for the heat sink X to move. When the metal wire W is being unloaded and bundled, the guide limit block 441 advances to contact the surface of the heat sink X to achieve guidance and limitation. Figure 7 The embodiment shown illustrates a scheme using a rack and pinion structure to drive the displacement of the guide limit block 441. Here, the metal wire W is driven forward in the wire feeding groove 4W solely by the wire feeding mechanism 12 in the original wire feeding head 11. Therefore, the wire guiding device 4 only needs to periodically release the metal wire W by controlling the translation of the movable U-shaped plate 432, instead of setting up an additional mechanism to pull the metal wire W. This undoubtedly simplifies the overall structure of the wire guiding device 4. At the same time, since the speed of the metal wire W is determined by the clamping arm 112, no traction mechanism is needed, and the inertia of the entire traction mechanism does not need to be considered. The speed at which the metal wire W passes through the wire W can be greatly increased, thereby improving the threading efficiency of the metal wire W bundling operation. Actual measurements show that the threading efficiency can be improved by more than double.

[0055] Back Figure 2 The wire feeding device 1 also includes a receiving mechanism 13, which is used to grab the end of the metal wire W that has passed through the wire feeding groove 4W and feed the end of the metal wire W into the biting part 1122 for temporary fixation. Figure 10 This is a schematic diagram of the specific structure of the receiving mechanism 13. Specifically, the receiving mechanism 13 includes a clamping member 131 for holding the end of the metal wire W. The clamping member 131 can be a pneumatic finger as shown in the figure. The clamping member 131 also has at least one degree of freedom of movement between the end of the first guide arm 41 and the end of the second guide arm 42. Figure 10In one embodiment, the clamping member 131 is disposed on the clamping seat 132, which moves in a direction parallel to the line connecting the end of the first guide arm 41 and the end of the second guide arm 42. The movement freedom of the clamping member 131 is realized by the lifting slide rail 133 and the lifting cylinder 134.

[0056] Figure 11 This is a schematic diagram of the servo platform 3. The servo platform 3 has a movable platform 31 mounted on the base, moving along the normal direction F of the wire W. When the heat sink X is mounted on the movable platform 31, its position in the normal direction F can be adjusted by the movement of the movable platform 31. Fixed supports 311 are mounted on one side of the movable platform 31 along the normal direction F, and movable supports 312 are mounted on the other side. The fixed supports 311 are fixed relative to each other on the movable platform 31, while the movable supports 312 are movable along the normal direction F on the movable platform 31. This means that the distance between the fixed supports 311 and the movable supports 312 can be adjusted according to the size of the heat sink X. Simultaneously, both the fixed supports 311 and the movable supports 312 are equipped with clamping components 313 with adjustable spacing along the feed direction F, used to adapt to and clamp the two ends of the fixed heat sink X. The clamping assembly 313 typically has a fixed clamping end 3131 and a movable clamping end 3132 arranged in a direction parallel to the feed direction F. The position of the movable clamping end 3132 along the feed direction F is adjustable to adjust the distance between the fixed clamping end 3131 and the movable clamping end 3132, thereby clamping and fixing the heat sink X. Optionally, at least one set of limiting blocks 3133 are provided on the clamping assembly 313 to limit the normal position of the heat sink X on the clamping assembly 313 in the feed direction F.

[0057] The moving platform 31 is typically positioned normally in the feed direction F as needed to determine the location where the metal wire W is secured to the radiator X. Subsequently, the distance between the fixed support 311 and the moving support 312 is set according to the size of the radiator X, ensuring that the radiator X can be supported at both ends by the fixed support 311 and the moving support 312 without excessive intrusion that could interfere with the binding process. When the radiator X straddles the moving platform 31, with both ends supported by the fixed support 311 and the moving support 312 respectively, the moving clamping end 3132 moves to a suitable position, clamping and securing the radiator X together with the fixed clamping end 3131. In the automated production process, after the wire feeding device 1 completes one binding operation, the moving platform 31 can move a suitable distance along the normal direction F to automatically perform binding operations on multiple metal wires W on the radiator X. The controlled movement of the moving platform 31, the moving support 312, and the moving clamping end 3132 includes, but should not include, movement via... Figure 11 The guide rail and the motor-driven lead screw transmission pair shown in the figure are implemented.

[0058] The feed direction F described in this invention should not be interpreted mechanically, but rather in terms of the local movement direction of the wire W. Specifically, it is clear that the wire W does not need to maintain a constant feed direction throughout its entire path, meaning that different positions along the feed path of the wire W can correspond to different feed directions F.

[0059] The working steps of this invention are as follows.

[0060] Servo platform 3 positioning steps. After the heat sink X is temporarily fixed on the moving platform 31, the moving platform 31 moves to a predetermined position in the normal direction of the feed direction F, so that the heat sink X enters the U-shaped opening 4A in the normal direction of the feed direction F and stops at its binding position aligned with the U-shaped opening 4A. Normally, the moving platform 31 is in the loading position before the cycle and the distance between the fixed support 311 and the moving support 312 is preset so that both ends of the heat sink X are placed across the fixed support 311 and the moving support 312. The heat sink X is clamped by the fixed clamping end 3131 and the moving clamping end 3132. During the clamping process, one end of the heat sink X can optionally be made to abut against the limiting block 3133 to ensure positioning in the normal direction of the feed direction F. Then, according to the predetermined depth, the heat sink X enters the U-shaped opening 4A.

[0061] The wire feeding device 1 feeds the wire. The wire feeding head 11 moves so that the wire W is aligned with the wire feeding groove 4W on one of the first guide arm 41 and the second guide arm 42. The wire feeding mechanism 12 rotates forward to feed the wire W forward. After straightening, the wire W passes through the wire hole 11W and enters the wire feeding groove 4W. It advances in the wire feeding groove 4W, circles the heat sink X almost once, and then exits from the other end of the wire feeding groove 4W. During this process, the clamping arm 112 is in the open state to avoid obstructing the advancement of the wire W. The fixed U-shaped plate 431 and the movable U-shaped plate 432 are relatively close or nearly close together so that the wire W can be guided forward in the wire feeding groove 4W.

[0062] The take-up mechanism 13 guides the wire. The clamping member 131 of the take-up mechanism 13 captures the end of the metal wire W at the other end of the wire feeding groove 4W. The clamping member 131 closes relative to each other to hold the end of the metal wire W, and then moves to the end of the wire feeding head 11 of the wire feeding groove 4W, feeding the end of the metal wire W into the clamping arm 112. To achieve this, the two clamping arms 112 are typically rotated so that the gap between them is generally parallel to the direction of movement of the metal wire W, so that the end of the metal wire W can enter the gap.

[0063] Steps for opening the movable U-shaped plate 432. Opening the movable U-shaped plate 432 releases the metal wire W.

[0064] The wire feeding mechanism 12 performs the following material collection step: Simultaneously with or after the opening of the moving U-shaped plate 432, the metal wire W is in a relaxed state. The storage assembly 121 sinks, retracting the length of the metal wire W released after the opening of the moving U-shaped plate 432 and storing it in the curved path formed by the sinking at the storage assembly 121. At this time, after the metal wire W is retracted, it will more closely wrap around or adhere to the surface of the heat sink X, which does not require additional power support. Of course, to achieve accurate control of the material collection process, the amount of metal wire W retracted can be precisely controlled by rotating the wire feeding assembly 122 in the reverse direction.

[0065] The wire feeding head 11 knotting step. After the wire feeding mechanism 12 retracts the metal wire W, the clamping arm 112 changes from open to closed. While pressing the metal wire W tightly, it cuts and clamps the metal wire W between the outlet of the wire hole 11W and the inlet of the wire feeding groove 4W. The end of the metal wire W from the clamping member 131 is also clamped simultaneously. The clamping arm 112 rotates a preset number of turns, causing the two ends of the metal wire W to spirally wind together at the knot. This ensures that the metal wire W fixes the heat sink X. Preferably, the wire feeding head 11 is movable on the base. It can then gradually move closer to the heat sink X according to the number of rotations, preventing the metal wire W from breaking due to excessive force during spiral winding, and also ensuring that the metal wire W adheres tightly to the heat sink X after spiral winding without loosening.

[0066] Multiple metal wires W typically need to be bundled at certain intervals on the same heat sink X to ensure good bonding at all points during brazing. Therefore, in the following cycle, the moving platform 31 moves the heat sink X a predetermined distance along the normal direction F, then proceeds to the wire feeding step to complete the subsequent bundling process.

[0067] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A wire guide device for bundling metal wires (W) on a heat sink (X), characterized in that, It includes a U-shaped arm (43) arranged around three sides of the radiator (X), and the U-shaped arm (43) forms a first guide arm (41) and a second guide arm (42) on both sides of the radiator (X); The U-shaped arm (43) includes a fixed U-shaped plate (431) and a movable U-shaped plate (432) that is movably disposed on one side of the fixed U-shaped plate (431). A wire feeding groove (4W) is provided on either side or both sides of the fixed U-shaped plate (431) and the movable U-shaped plate (432), extending from the end of the first guide arm (41) to the end of the second guide arm (42) and penetrating the entire U-shaped arm (43). The wire guide device (4) is also provided with at least one positioning component (44). The positioning component (44) includes at least two opposing guide limiting blocks (441) extending into the U-shaped opening (4A). A through guide gap (441W) is formed between the two guide limiting blocks (441) for the passage of the metal wire (W). When in use, the end of the guide limiting block (441) is close to the surface of the heat sink (X) to prevent the metal wire (W) from coming out of the guide gap (441W). The guide limit block (441) is movable; the guide limit block (441) is configured to move along the normal direction of the edge of the U-shaped arm (43).

2. A strapping device, characterized in that, The device includes the wire guide as described in claim 1, and further includes a servo platform (3). The servo platform (3) includes a movable platform (31) that is movable along the normal direction (F) of the wire (W). A fixed support (311) is provided on one side of the movable platform (31) along the normal direction (F), and a movable support (312) is provided on the other side. The fixed support (311) is fixed in position on the movable platform (31), and the movable support (312) is movable along the normal direction (F) of the movable platform (31).

3. The strapping device as described in claim 2, characterized in that, Both the fixed support (311) and the movable support (312) are provided with clamping assemblies (313) with adjustable spacing along the feed direction (F) to clamp the heat sink (X) within the spacing of the clamping assemblies (313).

4. The strapping device as described in claim 3, characterized in that, The clamping assembly (313) includes a fixed clamping end (3131) and a movable clamping end (3132) arranged in a direction parallel to the feed direction (F). The movable clamping end (3132) is movable along the feed direction (F), and the fixed clamping end (3131) is fixed.

5. The strapping device as described in claim 4, characterized in that, The clamping assembly (313) is provided with a limiting block (3133) that restricts the normal position of the heat sink (X) in the feed direction (F).

6. A binding method for a binding device as described in any one of claims 2-5, characterized in that, Includes the following steps: Positioning steps: The moving platform (31) moves to the predetermined position in the normal direction of the feed direction (F), so that the radiator (X) enters the U-shaped opening (4A) in the normal direction of the feed direction (F) and stops at its position to be tied, aligned with the U-shaped opening (4A). Wire feeding step: The wire feeding head (11) moves and makes the metal wire (W) aligned with the wire feeding groove (4W) on one of the first guide arm (41) and the second guide arm (42). The metal wire (W) is driven to move forward along the wire feeding groove (4W) and exits from the other end of the wire feeding groove (4W). Wire drawing step: The take-up mechanism (13) captures the end of the metal wire (W) at one end of the wire feeding groove (4W), moves to the other end of the wire feeding groove (4W), and feeds the end of the metal wire (W) into the wire feeding head (11); Material collection steps: At the same time as or after the moving U-shaped plate (432) opens, the wire feeding head (11) tightens the metal wire (W); Knotting step: After the take-up step, the wire feeder (11) cuts and clamps the metal wire (W), while clamping the end of the metal wire (W) from the take-up mechanism (13); then the wire feeder (12) rotates a preset number of turns, causing the two ends of the metal wire (W) to spirally wrap together at the knot.

7. The binding method as described in claim 6, characterized in that, During the knotting step of the wire feeding head (11), while the clamping arm (112) rotates, the wire feeding head (11) moves along the axis (O) towards the wire guiding device (4).

Images