A feeding mechanism of a wire harness automatic forming device

Abstract

The application relates to a feeding mechanism of a wire harness automatic forming device and relates to the technical field of wire harness processing automation equipment. The feeding mechanism of the wire harness automatic forming device comprises a feeding frame, a wire harness jig and a transfer jig are arranged on the feeding frame, a positioning groove for inserting a wire harness terminal is arranged on the wire harness jig, a jig wire groove in communication with the positioning groove is arranged on the wire harness jig, and a transfer wire groove for placing the wire harness is arranged on the transfer jig; a feeding clamp seat is movably arranged on the feeding frame, terminal clamping jaws for clamping the wire harness terminal and wire harness clamping jaws for clamping the wire harness body are arranged on the feeding clamp seat, a first feeding driving assembly and a second feeding driving assembly are arranged on the feeding frame, the first feeding driving assembly is used for driving the feeding clamp seat to move in the direction of approaching or moving away from the transfer jig, and the second feeding driving assembly is used for driving the feeding clamp seat to move in the direction of approaching or moving away from the wire harness jig. The application realizes the automation and high precision of wire harness feeding, and improves the production efficiency and product qualification rate.

Description

Technical Field

[0001] This application relates to the field of automated wire harness processing equipment, and in particular to a feeding mechanism for an automated wire harness forming equipment. Background Technology

[0002] In manufacturing sectors such as automotive, electronics, and home appliances, wire harnesses are core components for signal transmission and power supply. Their processing precision and production efficiency directly impact the quality and capacity of end products. Injection molding of wire harnesses is a crucial process in wire harness manufacturing. Through injection molds, insulating material is wrapped around designated areas of the wire harness to form a protective, fixing, or insulating structure, ensuring stable operation of the wire harness under complex working conditions. During the pre-injection molding loading process, the wire harness terminals must be precisely inserted into the corresponding positioning grooves in the mold, providing a precise positioning basis for subsequent injection molding. The operational precision of this step is crucial to the product yield.

[0003] Currently, most wire harness manufacturers in China still rely on manual labor to align the wire harness terminals with the positioning slots during the injection molding process. The specific procedure is as follows: operators manually grab the semi-finished wire harness, adjust its orientation based on experience, align the terminals with the positioning slots on the mold, and forcefully insert them. After the mold closes and injection molding is complete, the molded wire harness is manually removed and placed in a designated area, while the next batch of wire harnesses is simultaneously loaded and fitted with terminals. This manual operation mode has many inherent flaws in actual production and is difficult to meet the demands of modern large-scale production.

[0004] This traditional manual feeding method has significant technical defects and production bottlenecks: the primary problem is the difficulty in guaranteeing positioning accuracy. The wire harness terminals are small, and the fitting clearance of the positioning slots is usually narrow. When manually adjusting the alignment angle and force between the terminals and the positioning slots, misalignment is easily caused by visual bias, hand tremors, or uneven force. This misalignment not only prevents the terminals from smoothly fitting into the positioning slots but can also cause terminal deformation, wire harness conductor breakage, or damage such as wire harness sheath wear and internal short circuits, directly leading to product scrap and significantly increasing the defect rate and production costs. Summary of the Invention

[0005] In order to improve the situation in the above-mentioned technology, this application provides a feeding mechanism for an automatic wire harness forming equipment.

[0006] The feeding mechanism of the automatic wire harness forming equipment provided in this application adopts the following technical solution: A feeding mechanism for an automatic wire harness forming device includes a feeding rack, on which a wire harness fixture and a transfer fixture are provided. The wire harness fixture has a positioning groove for inserting wire harness terminals and a fixture wire groove communicating with the positioning groove. The transfer fixture has a transfer wire groove for placing the wire harness. A feeding clamp is movably provided on the feeding rack. The feeding clamp is provided with terminal grippers for gripping the wire harness terminals and wire harness grippers for gripping the wire harness body. A first feeding drive assembly and a second feeding drive assembly are provided on the feeding rack. The first feeding drive assembly is used to drive the feeding clamp to move in a direction closer to or away from the transfer fixture, and the second feeding drive assembly is used to drive the feeding clamp to move in a direction closer to or away from the wire harness fixture.

[0007] In the implementation of the above technical solution, firstly, the operator pre-places the wire harness to be processed into the transfer slot of the transfer fixture. The transfer slot provides initial support and orientation for the wire harness, providing basic positioning for subsequent clamping operations and preventing clamping deviations caused by wire harness scattering. Since the positioning slot on the wire harness fixture is interconnected with the fixture slot, an integrated positioning channel that adapts to the wire harness terminals and body can be formed, ensuring the continuity of subsequent assembly. Subsequently, the first feeding drive component is activated, driving the movable feeding clamp on the feeding rack to move towards the transfer fixture. When the feeding clamp reaches the preset position, the terminal grippers on the feeding clamp precisely correspond to and clamp the wire harness terminals, while the wire harness grippers simultaneously clamp the wire harness body. Through the targeted clamping of the terminals and body by the double grippers, the overall orientation of the wire harness is firmly fixed, preventing wire harness displacement or twisting during clamping. After clamping, the first feeding drive component drives the feeding clamp to move in the opposite direction, causing the clamped wire harness to disengage from the transfer fixture, completing the material handling action. Immediately afterwards, the second feeding drive component (the original description "second drive component" is a typo and should be "second feeding drive component") starts, driving the feeding clamp to move along the direction close to the wire harness fixture. During the movement, since the double grippers have fixed the wire harness posture, they can accurately align with the positioning groove and the fixture wire groove of the wire harness fixture. Then, the wire harness terminal is inserted into the positioning groove, and at the same time, the wire harness body is embedded into the fixture wire groove along with the connecting structure between the positioning groove and the fixture wire groove, completing the precise feeding and positioning of the wire harness. Subsequently, it can be used with the injection mold for molding operations.

[0008] By setting up a transfer fixture with pre-positioning function, a gripper assembly for stable clamping at multiple points, and two sets of drive components responsible for driving the material pick-up and insertion transfer axes respectively, these three components work together to decompose and transform the complex "visual alignment-manual insertion" action, which originally relied on human experience and feel and was prone to deviation, into a series of standardized, programmable, and sequentially executed mechanical actions: "pre-positioning, stable gripping, horizontal transfer, and vertical insertion." This automated process, with its deterministic and repeatable precision of mechanical motion, eliminates to some extent the problems caused by visual fatigue, hand tremors, and uneven force in manual operation, such as inaccurate terminal alignment and improper force during wire harness insertion. This enables efficient, stable, and damage-free high-precision fitting of wire harness terminals to the mold positioning groove, effectively solving the core technical problems pointed out in the background technology, such as low positioning accuracy, easy product damage (e.g., terminal deformation, wire core damage), and low production efficiency. This lays a crucial equipment foundation for the full automation of the wire harness injection molding process.

[0009] Optionally, the transfer cable tray includes a transfer positioning tray for placing the wire harness terminal and a transfer cable tray for placing the wire harness body. An abutment platform is provided between the terminal clamp and the wire harness clamp. The cross-sectional dimension of the transfer cable tray in the width direction is larger than the cross-sectional dimension of the abutment platform in the corresponding width direction.

[0010] In the implementation of the above technical solution, the transfer positioning slot and the transfer cable tray separate and position the terminals and body of the wire harness, providing a clear physical reference for gripping. When the first feeding drive component drives the feeding clamp to move the terminal gripper and the wire harness gripper above the transfer fixture, and the second feeding drive component drives it to descend to perform gripping, the abutment platform set between the two grippers descends accordingly. Since the cross-sectional dimension of the width direction of the transfer cable tray is larger than the cross-sectional dimension of the corresponding width direction of the abutment platform, the abutment platform can partially extend into the internal space of the transfer cable tray. As the feeding clamp continues to descend, the lower surface of the abutment platform will eventually contact and press the wire harness body placed in the transfer cable tray. This active pressing action eliminates any possible loosening or warping of the wire harness in the transfer cable tray before the wire harness is formally gripped by the two grippers, so that its posture is completely fixed. In this state, the terminal gripper and the wire harness gripper then perform a closing action. At this time, what they are gripping is a wire harness that has been pressed down from above by the abutment platform and is extremely stable in position and posture. This "first press, then clamp" sequence ensures that the wire harness will not shift or roll during gripping, greatly improving the accuracy and consistency of gripping. After gripping, the loading clamp rises, the contact platform moves away, and the wire harness is smoothly lifted.

[0011] Optionally, the cross-sectional dimension of the groove opening of the fixture is larger than the cross-sectional dimension of the corresponding width direction of the abutment platform.

[0012] In the implementation of the above technical solution, when the first driving component and the second driving component work together, the driving fixture seat moves the wire harness that has been gripped by the terminal gripper and the wire harness gripper to the top of the wire harness fixture; the fixture seat descends toward the wire harness fixture, so that the wire harness terminals are initially aligned with the positioning groove, and the wire harness body is aligned with the fixture groove. Since the cross-sectional dimension of the groove opening in the width direction of the fixture groove is larger than the cross-sectional dimension of the corresponding width direction of the abutment platform, it is ensured that the abutment platform set between the grippers can enter the groove opening area of ​​the fixture groove without obstruction when the fixture seat descends; As the fixture continues to descend, the contact platform presses the wire harness body into the positioning groove, while the terminal grippers simultaneously insert the wire harness terminals into the positioning groove. The pressing force of the contact platform ensures that the body of the flexible wire harness is fully positioned and conforms to the groove of the fixture, preventing the wire harness from being suspended, warped, or shifted due to its own elasticity or gravity. Through the physical limiting of the contact platform, the final posture of the wire harness during the implantation process is assisted in correcting, making the fit between the wire harness body and the groove of the fixture tighter, thereby improving the final accuracy of the feeding and the quality of the product molding.

[0013] Optionally, the wire harness has a first end and a second end, the first end being provided with a male terminal and the second end being provided with a female terminal; the wire harness fixture has multiple fixture slots, the positioning slots include a first positioning slot and a second positioning slot formed on the wire harness fixture, the shape of the first positioning slot matches the male terminal, the shape of the second positioning slot matches the female terminal, the first positioning slot communicates with at least one fixture slot, and the second positioning slot communicates with at least one fixture slot; the transfer slots include a first transfer slot and a second transfer slot formed on the transfer fixture, the first transfer slot is used to place the first end of the wire harness, and the second transfer slot is used to place the second end of the wire harness; the terminal grippers include a first gripper and a second gripper formed on the loading clamp, the first gripper is used to grip the male terminal, and the second gripper is used to grip the female terminal.

[0014] In the implementation of the above technical solution, firstly, in the pre-positioning stage, the first and second transfer cable trays provide independent accommodating spaces for the first and second ends of the wire harness, respectively. Operators or upstream equipment place the wire harness accordingly, ensuring that the two ends of the wire harness are initially separated and positioned before entering the automatic process. Subsequently, the loading clamp, carrying a specially designed first gripper (corresponding to the male terminal) and second gripper (corresponding to the female terminal), moves above the transfer fixture. The first and second grippers operate synchronously, accurately gripping the male and female terminals of the wire harness, respectively. The wire harness gripper grips the wire harness body. By designing dedicated grippers for the male terminal, female terminal, and wire harness body, the reliability of the clamping action and the overall protection of the wire harness are ensured. Then, with the combined action of the first and second feeding drive components, the feeding clamp transfers the entire wire harness from the transfer fixture to the wire harness fixture. Here, the first positioning groove (shape-matching male terminal) and the second positioning groove (shape-matching female terminal) constitute the final, high-precision target position. The male terminal is precisely embedded in the matching first positioning groove, and the female terminal is embedded in the matching second positioning groove. At the same time, the two ends of the wire harness are respectively embedded in the connected fixture grooves, completing the precise positioning and fixing of the two ends of the wire harness. This provides reliable support for subsequent injection molding. In the subsequent injection molding process of the entire wire harness, the entire wire harness can be injection molded in one go without having to be done in stages, thus improving the efficiency of the overall injection molding of the wire harness.

[0015] Optionally, multiple transfer fixtures are provided, and multiple movable seats are provided on the loading rack. Each transfer fixture is connected to one of the movable seats. The loading rack is provided with a docking moving rail and a pre-moving rail. The first loading drive assembly is used to drive the loading clamp to move in a direction close to or away from the docking moving rail. Two circulating moving rails are movably provided on the loading rack. The loading rack is provided with a moving rail drive assembly for driving the two circulating moving rails to dock with the docking moving rail or the pre-moving rail. The movable seat can move on the docking moving rail and / or the pre-moving rail. The loading rack is provided with a moving seat drive assembly for driving the movable seat to move.

[0016] In implementing the above technical solution, a highly dynamic and flexibly switchable "track-connected transfer logistics system" was constructed. By setting movable track modules, a flexible connection and rapid material change between the "material preparation area" and the "material loading area" were achieved, aiming to maximize the utilization rate of the loading host. This system includes two main functional areas: a material loading work area (equipped with docking moving rails) and a pre-preparation area (equipped with pre-preparation moving rails). Multiple moving seats carrying transfer fixtures can move independently on these tracks; two circulating moving rails are driven by moving rail drive components and can move like "moving bridges," selectively docking with the docking moving rails or pre-preparation moving rails at their ends. The standard workflow is as follows: First, one circulating moving rail is end-to-end connected to the docking moving rail, and the other circulating moving rail is end-to-end connected to the preparation moving rail. Both the docking and preparation moving rails have corresponding movable seats. The operator places the wire harness on the transfer fixture on the docking moving rail. The terminal grippers and wire harness grippers clamp the wire harness and transport it towards the wire harness fixture. Afterward, the empty transfer fixture moves to the circulating moving rail that is docked with the docking moving rail under the operation of the movable seat drive structure. Simultaneously, the empty transfer fixture on the preparation moving rail is transported to the circulating moving rail that is docked with it. The moving rail drive assembly then drives both circulating moving rails to dock with the preparation and docking moving rails respectively. With the cooperation of the movable seat drive assembly, the empty transfer fixture can circulate between the docking and preparation moving rails, thereby achieving rapid exchange between the fully loaded and empty fixtures between the loading and preparation areas.

[0017] Optionally, the transfer fixture is provided with a first limiting groove, a first limiting block is movably provided on one side of the docking moving rail, and a first limiting drive assembly is provided on the loading rack. The first limiting drive assembly is used to drive the first limiting block to be inserted into the first limiting groove.

[0018] In the implementation of the above technical solution, when the moving seat carrying the transfer fixture moves along the docking moving rail to the preset gripping station and stops under the drive of the moving seat drive component, the precision positioning process is immediately initiated. The first limiting block, located on one side of the docking moving rail, extends horizontally in a direction perpendicular to the docking moving rail under the drive of the first limiting drive component, and precisely inserts into the first limiting groove opened on the side of the transfer fixture, which has arrived at this location with the moving seat. This "slot-fit" action produces multiple effects: First, the horizontal mechanical insertion eliminates any residual slight displacement or wobbling that may occur due to inertia or track clearance of the moving seat, firmly locking the transfer fixture in a specific position on the track within the horizontal plane. Second, the fit between the first limiting block and the first limiting groove is itself a high-precision secondary positioning process; its fit clearance is smaller than the stopping accuracy of the moving seat on the docking moving rail, thereby improving the final positioning accuracy of the transfer fixture to the accuracy level of the mechanical limiting itself. Only after the transfer fixture is rigidly fixed in this way does the loading clamp come to perform the gripping operation. Because the transfer fixture on which the target (wire harness) is gripped is based is stable, the repeatability of the gripping position of the terminal gripper and the wire harness gripper on the loading clamp is fundamentally guaranteed.

[0019] By adding a first limit block – a first limit slot pair – controlled by a drive component at key stations on the dynamic conveyor line (connecting moving rail), which can actively engage and lock with the transfer fixture that moves to this location, a station control mode of "dynamic conveying, static locking, and precision operation" is created. This effectively isolates the interference of cumulative errors and motion uncertainties in the material conveying process on the precision loading process. The floating transfer fixture on the moving seat is transformed into a rigid reference platform with zero position drift and zero posture wobbling at the moment of gripping, thereby improving the absolute accuracy and repeatability of the fixture gripping and avoiding problems such as gripping skew, interference between the gripper and the fixture, or inaccurate wiring harness positioning caused by fixture micro-movements.

[0020] Optionally, the feeding rack is provided with a lifting rail, and a lifting seat is movably provided on the lifting rail. The lifting seat is provided with a fixture support for supporting the wire harness fixture, and the fixture support is provided with an infeed / outfeed conveyor for driving the wire harness fixture to move in a direction perpendicular to the lifting seat.

[0021] In the implementation of the above technical solution, according to the material feeding height requirements (adapting to the gripping height of the feeding clamp and the subsequent injection mold docking height), the lifting seat can move up and down along the lifting rail on the feeding frame, driving the fixture support seat and the wire harness fixture above to adjust to the preset height, and then keeping it fixed after the height calibration is completed; when the feeding clamp, driven by the first feeding drive component and the second feeding drive component, accurately inserts the wire harness into the positioning groove and wire groove of the wire harness fixture, the infeed and outfeed conveyor is started, driving the wire harness fixture along the vertical lifting rail. The seat moves in the direction (i.e., horizontally) to transport the wire harness fixture carrying the wire harness to the subsequent injection molding station. After that, the lifting seat moves up and down along the lifting rail. The lifting seat drives the unloaded fixture support to the position where it docks with the unloaded wire harness fixture after injection molding. The feeding and unloading conveyor then operates again, driving the wire harness fixture to move in the direction perpendicular to the lifting seat (i.e., horizontally). The unloaded wire harness fixture returns to the fixture support to await subsequent docking with the loading clamp, thus forming a continuous operation cycle.

[0022] By mounting wire harness fixtures on fixture support seats that can move vertically driven by lifting rails and horizontally driven by infeed / outfeed conveyors, a flexible fixture handling platform with dual functions of vertical lifting and horizontal connection is constructed. This platform transforms a fixed loading station into a dynamic, height-adjustable fixture exchange station. It can automatically receive wire harness fixtures from upstream processes and precisely adapt to the working height of the loading mechanism through lifting motion. After loading, it can automatically deliver the fixtures to downstream processes. This design achieves fully automated flow of wire harness fixtures between different modules of the production line, eliminating manual handling and fixture positioning. This not only significantly reduces labor intensity and improves production efficiency but also ensures the repeatability of the spatial positional relationship between the wire harness fixture and the loading clamp during each loading through mechanical positioning, providing a foundation for stable and reliable automated loading.

[0023] Optionally, a waiting rack is provided on one side of the loading rack, and an infeed conveyor and an outfeed conveyor are provided on the material conveyor. The lifting seat is movable on the lifting rail to dock with the infeed conveyor or the outfeed conveyor respectively. The infeed conveyor is provided with an infeed conveying drive assembly for driving the wire harness fixture to move in a direction close to the lifting seat, and the outfeed conveyor is provided with an outfeed conveying drive assembly for driving the wire harness fixture to move in a direction away from the lifting seat.

[0024] In the implementation of the above technical solution, the waiting rack is fixedly set on one side of the loading rack, forming a dedicated jig transfer and buffer zone. The feeding conveyor and discharging conveyor, arranged side-by-side on it, respectively handle the functions of "empty jig / jaw-to-load jig input" and "full jig / loaded jig output". A complete work cycle is as follows: When the lifting platform is in the standby position, it moves along the lifting rail, precisely aligning the height of its upper jig support with the conveying surface of the feeding conveyor, achieving "docking". At this time, the feeding conveyor drive component starts, driving an empty (or from the previous process) wire harness jig to move horizontally from the feeding conveyor. The feeding and discharging conveyors cooperate, allowing the empty wire harness jig to fully enter and be positioned on the jig support of the lifting platform. Subsequently, the lifting platform rises, transporting the wire harness fixture to the loading height. The terminal clamps and wire harness clamps then insert the wire harness, and the lifting platform is simultaneously aligned with the unloading conveyor. Following this, the infeed / outfeed conveyor operates to transport the wire harness fixture to the unloading conveyor. The unloading conveyor drive assembly works in conjunction to continuously move the wire harness fixture on the unloading conveyor, thereby transporting the wire harness fixture carrying the wire harness to the next process. Simultaneously, the lifting platform can descend again to align with the infeed conveyor to receive the next fixture, forming a continuous operation.

[0025] By installing a waiting rack with independent infeed and outfeed lines next to the loading rack, and ensuring that the fixture support can be highly aligned with the infeed and outfeed conveyors, a closed-loop material flow system with clearly separated and automatically connected "input-processing-output" processes is constructed. This system enables the parallel and streamlined supply, loading, and unloading of wire harness fixtures: the infeed conveyor can continuously supply empty fixtures, the outfeed conveyor can promptly remove full fixtures, and the lifting rail and lifting seat focus on height adjustment. This design not only achieves full automation of fixture flow and eliminates manual handling between processes, but more importantly, through the buffering effect of the dual conveyors, it effectively decouples the operating cycle of the loading host from the cycle of the upstream and downstream production lines, allowing upstream and downstream equipment to prepare or perform subsequent processing without stopping the system. This significantly improves the equipment utilization, production efficiency, and operational continuity of the entire production system, and is an important foundation for achieving flexible manufacturing and automated production line integration.

[0026] Optionally, a material preparation rack is provided on one side of the feeding rack, and the material preparation rack is provided with a first-end material preparation platform and a second-end material preparation platform facing each other. A receiving space for accommodating the wire harness body is left between the first-end material preparation platform and the second-end material preparation platform. A first placement platform is detachably connected to the first-end material preparation platform, and the first placement platform has multiple first-end material preparation slots. A second placement platform is detachably connected to the second-end material preparation platform, and the second placement platform has multiple second-end material preparation slots. The first-end material preparation slots and the second-end material preparation slots correspond one-to-one and are interconnected. A material preparation rack is movably provided with a material preparation clamp, which is provided with a first material preparation claw and a second material preparation claw. The material preparation rack is provided with a first material preparation drive assembly and a second material preparation drive assembly. The first material preparation drive assembly is used to drive the material preparation clamp to move in a direction close to or away from the transfer fixture. The second material preparation drive assembly is used to drive the material preparation clamp to move in a direction close to or away from the material preparation trough. The material preparation rack is provided with a rotary drive module, which is used to drive the material preparation clamp to rotate to a direction that aligns with the loading clamp.

[0027] In the implementation of the above technical solution, the first and second placement platforms, as independent and movable "wire harness carriers," are designed to be detachable from the main equipment. Operators can easily and in batches insert the ends of multiple wire harnesses into the corresponding first and second end material preparation slots on the placement platforms outside the production line (such as at an offline workstation), with the wire harness body suspended in the space between the two placement platforms. This offline operation mode does not occupy the main line equipment's operating time and avoids the safety and space constraints of operating next to high-speed equipment. Once a set of placement platforms is loaded, the operator can quickly install it as a single module onto the first and second end material preparation platforms. Subsequently, the system starts, and the material preparation clamp, driven by the first and second material preparation drive components, moves above the first pair of material preparation slots (i.e., the first workstation). The first and second end material preparation claws on these clamps descend synchronously, accurately gripping the ends of the wire harnesses already positioned in the slots. Afterward, the rotation drive module drives the clamp to rotate as needed, adjusting the wire harness posture to align with the slot orientation of the target transfer fixture. Finally, the material preparation clamp transfers and precisely places the wire harnesses into the first and second transfer slots of the transfer fixture. The grippers can sequentially pick up all the wire harnesses on the placement table. When the wire harnesses on a set of placement tables are used up or the product model needs to be changed, simply remove the unloaded or old model placement table as a whole and replace it with a new placement table pre-loaded with the new model wire harnesses; the changeover time is extremely short.

[0028] By introducing a detachable placement platform module for offline pre-installation of wire harnesses, the time-consuming manual arrangement of wire harnesses is completely removed from the production cycle of the automated main line, creating a production organization method of "parallel offline material preparation and rapid online changeover." This allows for optimal decoupling of manual material preparation and machine loading in both time and space. This improves overall equipment efficiency (OEE), eliminates downtime during production changes, and, through standardized placement platform design, makes switching between multiple wire harness products quick and easy, greatly enhancing the flexibility of the production line.

[0029] Optionally, the first and second end material preparation platforms are movably mounted on the material preparation rack. The material preparation rack is equipped with a material preparation drive assembly, which drives the first and second end material preparation platforms to move in directions opposite to or away from each other. A first support platform is provided on the side of the first end material preparation platform away from the second end material preparation platform, and a second support platform is provided on the side of the second end material preparation platform away from the first end material preparation platform. The first end material preparation gripper includes a first end material preparation line gripper and a male end material preparation gripper mounted on the material preparation clamping seat, the position of which corresponds to the position of the first support platform. The second end material preparation gripper includes a second end material preparation line gripper and a female end material preparation gripper mounted on the material preparation clamping seat, the position of which corresponds to the position of the second support platform. A pressure seat is provided within the accommodating space, and a pressure drive assembly is provided on the material preparation rack. The pressure drive assembly drives the pressure seat to move in a direction not parallel to the first end material preparation platform.

[0030] In the implementation of the above technical solution, after the wire harness is placed and the first and second placement platforms are connected to the first and second end material preparation platforms respectively, the material preparation drive component on the material preparation rack is activated, driving the first and second end material preparation platforms to move synchronously in opposite directions (i.e., along the line connecting the centers of the two material preparation platforms, moving away from each other). This movement causes the first and second placement platforms mounted on the two material preparation platforms to separate, thereby applying a lateral tensile force to the wire harness placed between them, gradually straightening the wire harness body. During the stretching process of the wire harness, the pressure seat set in the receiving space moves in a direction not parallel to the movement direction of the first end material preparation platform (usually vertically downward) under the drive of the pressure drive component, applying downward pressure to the middle or designated section of the wire harness body from above. This pressure action works in conjunction with the lateral stretching to constrain the wire harness, preventing it from jumping, detaching from the slot, or producing irregular bending during the tensioning process, ensuring a smooth and controllable stretching process.

[0031] When the first and second end preparation platforms move to the preset "straightening position," the wire harness is taut. Since the physical dimensions (usually width or thickness) of the male and female terminals of the wire harness are larger than the diameter of the wire harness body to which they are connected, in the taut state, the root of the male terminal naturally abuts against the upper surface of the first support platform located outside the first end preparation platform; similarly, the root of the female terminal abuts against the upper surface of the second support platform outside the second end preparation platform. These two support platforms provide a precise mechanical positioning reference for the vertical direction (height direction) of the two ends of the wire harness, allowing the terminals to be slightly "lifted" from the preparation slot or stably supported on a defined height plane.

[0032] Subsequently, the material preparation clamp and its gripper assembly begin operation. Because the male end material preparation gripper's installation position on the clamp is pre-calibrated spatially with the first support platform, and similarly, the female end material preparation gripper's position corresponds to the second support platform, when the clamp moves to the gripping station, the male and female end material preparation grippers can directly and accurately position themselves directly above the male and female terminals, which have been raised and fixed by the support platform, without complex visual addressing. Simultaneously, the first and second end material preparation grippers can be used to assist in gripping the portion of the wire harness body near the terminals, providing additional stability. The grippers descend, completing the high-precision, high-stability gripping of both ends of the wire harness.

[0033] In summary, this application includes at least one of the following beneficial technical effects: 1. It has achieved full automation from material preparation to material loading and insertion, significantly improving production cycle time and efficiency; 2. It enables continuous supply and recycling of materials (wire harnesses) and carriers (transfer fixtures, wire harness fixtures), allowing the equipment to operate without interruption and greatly improving equipment utilization. 3. The tedious and tiring manual placement work is transferred to a safe offline workstation, which improves the operating environment and reduces labor intensity and safety hazards. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the feeding frame of the feeding mechanism of an automatic wire harness forming equipment according to Embodiment 1 of this application; Figure 2 yes Figure 1 Side view; Figure 3 yes Figure 2 Sectional side view below section line AA; Figure 4 yes Figure 2 Sectional side view below the BB section line; Figure 5 yes Figure 1Enlarged view of section A; Figure 6 yes Figure 1 Enlarged view of section B; Figure 7 This is a partial structural diagram of the feeding rack in Embodiment 1 of this application; Figure 8 This is a schematic diagram of the fixture support in Embodiment 1 of this application; Figure 9 This is a schematic diagram of the interaction between the docking moving rail, the preparatory moving rail, and the circulating moving rail in Embodiment 1 of this application; Figure 10 This is a schematic diagram of the overall structure of the material rack in Embodiment 1 of this application, where the wire harness fixture is located on the material rack; Figure 11 This is a schematic diagram of the overall structure of the material rack in Embodiment 1 of this application, where the wire harness fixture is not located on the material rack; Figure 12 This is a schematic diagram of the cooperation between the feeding rack and the preparation rack in Embodiment 2 of this application; Figure 13 This is a partial cross-sectional schematic diagram of the cooperation between the feeding rack and the preparation rack in Embodiment 2 of this application; Figure 14 This is a partial cross-sectional schematic diagram of the material preparation rack in Embodiment 2 of this application; Figure 15 This is a schematic diagram of the interaction between the first end material line clamp and the male end material preparation clamp in Embodiment 2 of this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Loading rack; 2. Wire harness fixture; 3. Positioning slot; 301. First positioning slot; 302. Second positioning slot; 4. Fixture wire groove; 5. Transfer fixture; 6. Transfer wire groove; 601. First transfer positioning slot; 602. Second transfer positioning slot; 603. First transfer wire groove; 604. Second transfer wire groove; 7. Loading clamp; 8. Terminal gripper; 801. First gripper; 802. Second gripper; 9. Wire harness gripper; 10. Abutment platform; 11. First loading drive assembly; 1101. Third drive rail; 1102. Third drive base; 12. Second loading drive assembly; 1201. Second drive rail; 1202. 13. Movable seat; 14. Docking moving rail; 15. Preparatory moving rail; 16. Circulating moving rail; 17. Moving rail drive assembly; 1701. Lifting rail; 1702. Lifting frame; 18. First limiting groove; 19. First limiting block; 20. First limiting drive assembly; 2001. First limiting drive cylinder; 21. Lifting rail; 22. Lifting seat; 23. Fixture support seat; 24. Feeding and conveying drive assembly; 2401. Conveyor belt; 25. Waiting rack; 26. Feeding conveyor table; 27. Discharge conveyor table; 28. Feeding and discharging conveyor components; 2801. Feeding and discharging drive motor; 2802. Feeding and discharging conveyor belt; 29. ​​Discharge conveyor... 2901. Feeding drive assembly; 2902. Discharge conveyor drive motor; 2903. Waiting lead screw; 2904. Discharge conveyor frame; 2905. Waiting claw; 30. Material preparation rack; 31. First end material preparation platform; 32. Second end material preparation platform; 33. Accommodation space; 34. First placement platform; 35. Second placement platform; 36. First end material preparation trough; 37. Second end material preparation trough; 38. Material preparation clamp; 40. First end material line clamp; 41. Male end material preparation clamp; 42. Second end material line clamp; 43. Female end material preparation clamp; 44. First material preparation drive assembly; 4401. Material preparation hydraulic rod; 4402. Material preparation drive seat; 45. Second material preparation drive assembly; 45 01. Multi-stage telescopic rod; 46. Rotary drive module; 4601. Rotary drive motor; 47. Material preparation drive assembly; 4701. Material preparation drive rail; 4702. Material preparation drive seat; 48. First support platform; 49. Second support platform; 50. Pressing seat; 51. Pressing drive assembly; 5101. First telescopic rod; 52. First drive rail; 53. First drive seat; 54. Transfer seat drive motor; 55. Transfer seat conveyor belt; 56. Transfer seat drive platform; 57. Drive platform moving rail; 58. Fixture claw; 59. First end pusher roller; 60. Pusher drive motor; 61. Pusher screw; 62. Pusher rod; 63. Second telescopic rod; 64. Bearing plate. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1 - Appendix Figure 15 This application will be described in further detail.

[0037] Example 1

[0038] Embodiment 1 of this application discloses a feeding mechanism for an automatic wire harness forming equipment. (Refer to...) Figures 1-11 The feeding mechanism of the automatic wire harness forming equipment includes a feeding rack 1, on which a wire harness fixture 2 and a transfer fixture 5 are provided. The wire harness fixture 2 has a positioning groove 3 for inserting wire harness terminals and a fixture wire groove 4 communicating with the positioning groove 3. The transfer fixture 5 has a transfer wire groove 6 for placing wire harnesses. A feeding clamp 7 is movably provided on the feeding rack 1. The feeding clamp 7 is provided with terminal grippers 8 for holding wire harness terminals and wire harness grippers 9 for holding wire harness bodies. A first feeding drive assembly 11 and a second feeding drive assembly 12 are provided on the feeding rack 1. The first feeding drive assembly 11 is used to drive the feeding clamp 7 to move in a direction closer to or away from the transfer fixture 5. The second feeding drive assembly 12 is used to drive the feeding clamp 7 to move in a direction closer to or away from the wire harness fixture 2.

[0039] Reference Figures 1-11 In this embodiment, the loading rack 1 is provided with a first drive rail 52, which is horizontally arranged, and a first drive seat 53 is slidably arranged on the first drive rail 52. The second loading mechanism includes a second drive rail 1201 arranged on the first drive seat 53, which is horizontally arranged but perpendicular to the first drive rail 52, and a second drive seat 1202 is slidably arranged on the second drive rail 1201. The first loading drive assembly 11 includes a third drive rail 1101 arranged on the second drive seat 1202, which is vertically arranged, and a third drive seat 1102 is slidably arranged on the third drive rail 1101. The loading clamp 7 is arranged on the third drive rail 1101. The first drive rail 52, the second drive rail 1201, and the third drive rail 1101 extend along the X, Y, and Z axes, respectively, thereby giving the loading clamp 7 a multi-directional degree of freedom of movement, making the movement of the loading clamp 7 more flexible.

[0040] Reference Figures 1-11 The transfer trough 6 includes a transfer positioning trough 3 for placing wire harness terminals and a transfer trough 6 for placing the wire harness body. An abutment platform 10 is provided between the terminal clamp 8 and the wire harness clamp 9. The cross-sectional dimension of the transfer trough 6 in the width direction is larger than the cross-sectional dimension of the abutment platform 10 in the corresponding width direction. The cross-sectional dimension of the fixture trough 4 in the width direction is larger than the cross-sectional dimension of the abutment platform 10 in the corresponding width direction.

[0041] Reference Figures 1-11The wire harness has a first end and a second end, the first end being provided with a male terminal and the second end being provided with a female terminal. The positioning groove 3 includes a first positioning groove 301 and a second positioning groove 302 formed on the wire harness fixture 2. The shape of the first positioning groove 301 matches the male terminal, and the shape of the second positioning groove 302 matches the female terminal. The wire harness fixture 2 is provided with a plurality of first positioning grooves 301, a plurality of second positioning grooves 302, and a plurality of fixture wire grooves 4. Each first positioning groove 301 is connected to a fixture wire groove 4, and each second positioning groove 302 is connected to a fixture wire groove 4.

[0042] Reference Figures 1-11 The transfer cable tray 6 includes a first transfer cable tray 6 and a second transfer cable tray 604 formed on the transfer fixture 5. The first transfer cable tray 6 includes a first transfer positioning groove 601 and a first transfer cable tray 603 formed on the transfer fixture 5. The second transfer cable tray 604 includes a second transfer positioning groove 602 and a second transfer cable tray 604 formed on the transfer fixture 5. The first transfer cable tray 603 is used to place the first end of the wire harness, the first transfer positioning groove 601 is used to place the male terminal of the wire harness, the second transfer cable tray 604 is used to place the second end of the wire harness, and the second transfer positioning groove 602 is used to place the female terminal of the wire harness.

[0043] Reference Figures 1-11 The terminal gripper 8 includes a first gripper 801 and a second gripper 802 disposed on the feeding clamp 7. The first gripper 801 is used to hold the male terminal, and the second gripper 802 is used to hold the female terminal. Multiple wire harness grippers 9 are provided. Each first gripper 801 corresponds to a wire harness gripper 9 to synchronously grip the first end and the male terminal of the wire harness, and each second gripper 802 corresponds to a wire harness gripper 9 to synchronously grip the second end and the female terminal of the wire harness.

[0044] Reference Figures 1-11 In this embodiment, the physical dimensions (usually referring to width or thickness) of the male and female terminals of the wire harness are larger than the diameter of the wire harness body to which they are subsequently connected (the diameters of the first and second ends are consistent with the diameter of the wire harness body). The shape and size of the first gripper 801, the first positioning groove 301, and the first transfer positioning groove 601 are designed according to the shape and size of the male terminal. The shape and size of the second gripper 802, the second positioning groove 302, and the second transfer positioning groove 602 are designed according to the shape and size of the female terminal. The shape and size of the fixture groove 4 and the transfer groove 6 are designed according to the shape and size of the wire harness body.

[0045] Reference Figures 1-11Multiple transfer fixtures 5 are provided, and multiple movable seats 13 are provided on the loading rack 1. Each transfer fixture 5 is connected to a movable seat 13. The loading rack 1 is provided with opposite and parallel docking moving rails 14 and pre-moving rails 15. The docking moving rail 14 is located above the pre-moving rail 15. The first loading drive assembly 11 is used to drive the loading clamp 7 to move in a direction close to or away from the docking moving rail 14. Two circulating moving rails 16 are movably provided on the loading rack 1. The loading rack 1 is provided with a moving rail drive assembly 17 for driving the two circulating moving rails 16 to dock with the docking moving rail 14 or the pre-moving rail 15. The movable seat 13 can move on the docking moving rail 14 and / or the pre-moving rail 15. The loading rack 1 is provided with a moving seat 13 drive assembly for driving the moving seat 13 to move.

[0046] Reference Figures 1-11 In this embodiment, the moving seat 13 driving assembly includes a moving seat drive motor 54 mounted on the loading rack 1. The output shaft of the moving seat drive motor 54 is connected to a tensioned moving seat conveyor belt 55 via a pulley. A moving seat drive platform 56 is mounted on the moving seat conveyor belt 55. A drive platform moving rail 57 parallel to the docking moving rail 14 is mounted on the loading rack 1. The side of the moving seat drive platform 56 facing away from the moving seat conveyor belt 55 is slidably connected to the drive platform moving rail 57. A fixture claw 58 for abutting against the lower end of the moving seat 13 is mounted on the moving seat drive platform 56. The rotation of the output shaft of the moving seat drive motor 54 drives the moving seat conveyor belt 55 to rotate, thereby driving the fixture claw 58 to move. During the movement of the fixture claw 58, the moving seat 13 is pushed, and the moving seat 13 slides.

[0047] Reference Figures 1-11 To further improve the stability of the moving seat 13 during movement, the loading rack 1 is equipped with two drive seat drive motors and two moving seat drive platforms 56. Each drive seat drive motor drives one moving seat drive platform 56 to move. One moving seat drive platform 56 is located on one side of the pre-moving rail 15 and is used to drive the moving seat 13 on the pre-moving rail 15 to slide. The other moving seat drive platform 56 is located on one side of the docking moving rail 14 and is used to drive the moving seat 13 on the docking moving rail 14 to slide.

[0048] Reference Figures 1-11 In this embodiment of the application, the moving rail drive assembly 17 includes a lifting rail 1701 disposed on the loading rack 1. The lifting rail 1701 is vertically disposed, and a lifting frame 1702 is slidably connected to the lifting rail 1701. A circulating moving rail 16 is disposed on the lifting frame 1702. The lifting frame 1702 can drive the circulating moving rail 16 to move up and down on the lifting rail 1701, thereby connecting the circulating moving rail 16 with the docking moving rail 14 or the preparatory moving rail 15.

[0049] Reference Figures 1-11 The transfer fixture 5 is provided with a first limiting groove 18, and a first limiting block 19 is movably provided on one side of the docking moving rail 14. The loading rack 1 is provided with a first limiting drive assembly 20, which is used to drive the first limiting block 19 to be inserted into the first limiting groove 18.

[0050] Reference Figures 1-11 In this embodiment of the application, the first limiting drive structure includes a first limiting drive cylinder 2001 disposed on the feeding rack 1, and a first limiting block 19 disposed on the movable end of the first limiting drive cylinder 2001. The first limiting block 19 is moved by the extension and retraction of the movable end of the first limiting drive cylinder 2001, thereby allowing the first limiting block 19 to enter and exit the first limiting groove 18.

[0051] Reference Figures 1-11 A material receiving rack 25 is provided on one side of the loading rack 1. A feeding conveyor 26 and a discharging conveyor 27 are provided on the material receiving rack. The feeding conveyor 26 is located below the discharging conveyor 27. A lifting seat 22 is movable on a lifting rail 21 to dock with either the feeding conveyor 26 or the discharging conveyor 27. A feeding conveying drive assembly 24 is provided on the feeding conveyor 26 to drive the wire harness fixture 2 to move in a direction close to the lifting seat 22. A discharging conveying drive assembly 29 is provided on the discharging conveyor 27 to drive the wire harness fixture 2 to move in a direction away from the lifting seat 22. A lifting rail 21 is provided on the loading rack 1, and a lifting seat 22 is movably mounted on the lifting rail 21. A fixture support 23 is provided on the lifting seat 22 to support the wire harness fixture 2. An infeed / outfeed conveyor 28 is provided on the fixture support 23, which drives the wire harness fixture 2 to move in a direction perpendicular to the lifting seat 22. When the lifting seat 22 moves to the bottom on the lifting rail 21, the fixture support 23 docks with the feeding conveyor 26, the feeding conveyor drive assembly 24 is activated, and an empty (or from the previous process) wire harness fixture 2 is driven to move horizontally from the feeding conveyor 26. The infeed and outfeed conveyor 28 cooperates to operate, so that the empty wire harness fixture 2 can be completely entered and positioned on the fixture support 23 of the lifting seat 22. When the lifting seat 22 moves to the top on the lifting rail 21, the fixture support 23 docks with the outfeed conveyor 27.

[0052] Reference Figures 1-11 In this embodiment of the application, the feeding conveying drive assembly 24 includes a conveyor belt 2401 rotatably disposed on the feeding conveyor table 26. The conveyor belt 2401 is driven to rotate by a conveyor motor (not shown in the figure). The feeding and discharging conveyor 28 operates to convey the wire harness fixture 2 to the discharging conveyor table 27. The discharging conveying drive assembly 29 cooperates to drive the wire harness fixture 2 to move continuously on the discharging conveyor table 27, and conveys the wire harness fixture 2 carrying the wire harness to the next process.

[0053] Reference Figures 1-11 The discharge conveying drive assembly 29 includes a discharge conveying drive motor 2901 mounted on a material rack. The output shaft of the discharge conveying drive motor 2901 is coaxially and fixedly connected to a waiting lead screw 2902. The waiting lead screw 2902 is horizontally mounted. A discharge conveying frame 2903 is mounted on the lead screw nut of the waiting lead screw 2902. A waiting claw 2904 is mounted on the discharge conveying frame 2903. On the conveyor belt, along the moving direction of the wire harness fixture 2, one side of the waiting claw 2904 is a flat surface, and the other side is an inclined surface with a gradually decreasing cross-section. The wire harness fixture 2, located on the fixture support 23, moves to the conveyor belt under the operation of the feed conveyor 28. The wire harness fixture 2 gradually contacts the inclined surface of the waiting claw 2904 until it crosses the inclined surface. After this, the discharge conveyor motor operates, and the waiting screw 2902 rotates so that the discharge conveyor 2903 drives the waiting claw 2904 to move horizontally. The flat side of the waiting claw 2904 abuts against the wire harness fixture 2 to push the wire harness fixture 2 to move.

[0054] Reference Figures 1-11 The feeding and discharging conveyor 28 includes a feeding and discharging drive motor 2801 mounted on the fixture support 23. The feeding and discharging drive motor 2801 is a dual-output shaft motor. The two output shafts of the feeding and discharging drive motor 2801 are respectively connected to the feeding and discharging conveyor belt 2802 via pulleys. The operation of the feeding and discharging drive motor 2801 drives the feeding and discharging conveyor belt 2802 to rotate, thereby enabling the wire harness fixture 2 to move on the fixture support 23.

[0055] In this embodiment, the first gripper 801, the second gripper 802, and the wire harness gripper 9 are all pneumatic grippers, and the specific internal drive structure can be designed with reference to the pneumatic grippers in the prior art.

[0056] The implementation principle of the feeding mechanism of the automatic wire harness forming equipment in Embodiment 1 of this application is as follows: by setting up a transfer fixture 5 with a pre-positioning function, a gripper assembly that realizes stable clamping at multiple points, and two sets of drive assemblies that are respectively responsible for driving the material picking and transfer shaft and the implantation transfer shaft, the three work together to decompose and transform the complex action of "visual alignment - manual insertion" that originally relied on human experience and feel and was prone to deviation into a series of standardized actions executed by machinery, programmable control, and with a clear sequence - "pre-positioning, stable gripping, horizontal transfer, and vertical implantation". This automated process, with its deterministic and repeatable mechanical motion, eliminates to some extent the problems caused by visual fatigue, hand tremors, and uneven force in manual operation, such as inaccurate terminal alignment and improper force during wire harness insertion. As a result, it can efficiently, stably, and without damage complete the high-precision fit between the wire harness terminal and the mold positioning groove 3. It effectively solves the core technical problems pointed out in the background technology, such as low positioning accuracy, easy product damage (such as terminal deformation and wire core damage), and low production efficiency, laying a key equipment foundation for the full automation of the wire harness injection molding process.

[0057] Example 2

[0058] The difference between Example 2 and Example 1 is that: (Refer to...) Figures 12-15 A material preparation rack 30 is provided on one side of the feeding rack 1. The material preparation rack 30 has a first-end material preparation platform 31 and a second-end material preparation platform 32 facing each other. A receiving space 33 for accommodating the wire harness body is left between the first-end material preparation platform 31 and the second-end material preparation platform 32. A first placement platform 34 is detachably connected to the first-end material preparation platform 31, and the first placement platform 34 has multiple first-end material preparation slots 36. A second placement platform 35 is detachably connected to the second-end material preparation platform 32, and the second placement platform 35 has multiple second-end material preparation slots 37. The first-end material preparation slots 36 and the second-end material preparation slots 37 correspond one-to-one and are interconnected. The material preparation rack 3... A material preparation clamp 38 is movably provided on the 0. The material preparation clamp 38 is provided with a first end material preparation claw and a second end material preparation claw. The material preparation rack 30 is provided with a first material preparation drive assembly 4744 and a second material preparation drive assembly 4745. The first material preparation drive assembly 4744 is used to drive the material preparation clamp 38 to move in a direction close to or away from the transfer fixture 5. The second material preparation drive assembly 4745 is used to drive the material preparation clamp 38 to move in a direction close to or away from the material preparation trough. The material preparation rack 30 is provided with a rotary drive module 46. The rotary drive module 46 is used to drive the material preparation clamp 38 to rotate to a direction that aligns with the loading clamp 7.

[0059] Reference Figures 12-15In this embodiment of the application, the first end preparation platform 31 and the first placement platform 34 are plugged into each other. The first end preparation platform 31 is provided with a first slot along the arrangement direction of the first preparation groove. The bottom of the first placement platform 34 is provided with a first plug. When the first plug is inserted into the first slot, the first end preparation platform 31 and the first placement platform 34 are connected. The arrangement and cooperation of the second end preparation platform 32 and the second placement platform 35 are similar.

[0060] Reference Figures 12-15 The first-end material preparation platform 31 and the second-end material preparation platform 32 are movably mounted on the material preparation rack 30. The material preparation rack 30 is equipped with a material preparation drive assembly 47, which drives the first-end material preparation platform 31 and the second-end material preparation platform 32 to move in directions opposite to or away from each other. A first support platform 48 is provided on the side of the first-end material preparation platform 31 away from the second-end material preparation platform 32, and a second support platform 49 is provided on the side of the second-end material preparation platform 32 away from the first-end material preparation platform 31. The first-end material preparation gripper includes a gripper seat 38. The first end material preparation line clamp and the male end material preparation clamp 41 are positioned corresponding to the position of the first support platform 48; the second end material preparation clamp includes the second end material preparation line clamp and the female end material preparation clamp 43, which are disposed on the material preparation clamp 38, and the position of the female end material preparation clamp 43 corresponds to the position of the second support platform 49; a pressure seat 50 is disposed in the accommodating space 33, and a pressure drive assembly 51 is disposed on the material preparation rack 30, which is used to drive the pressure seat 50 to move in a direction that is not parallel to the first end material preparation platform 31.

[0061] Reference Figures 12-15In this embodiment, the first material preparation drive assembly 4744 is selected as a material preparation hydraulic rod 4401 mounted on the material preparation rack 30. The movable end of the material preparation hydraulic rod 4401 is vertically arranged, and a material preparation drive seat 4702 is provided at the movable end of the material preparation hydraulic rod 4401. The second material preparation drive assembly 4745 includes a multi-stage telescopic rod 4501 mounted on the material preparation drive seat 4702. The multi-stage telescopic rod 4501 is horizontally arranged and is an electrically controlled telescopic rod. The movable end of the multi-stage telescopic rod 4501 is connected to the material preparation clamp 38. The range of motion of the movable end of the multi-stage telescopic rod 4501 covers the setting position of the transfer fixture 5. The telescopic movement of the movable end of the multi-stage telescopic rod 4501 can drive the material preparation clamp 38 to move. The material preparation clamp 38 can thus move in the direction away from or towards the transfer fixture 5. To further improve the flexibility of the material preparation clamp 38, a horizontal material preparation drive rail 4701 (not shown in the figure) is provided inside the material preparation clamp 38. The first end material line clamp 40, the male end material preparation clamp 41, the second end material line clamp 42, and the female end material preparation clamp 43 are all slidably mounted on the material preparation drive rail 4701 via a sliding seat (not shown in the figure). The material preparation drive rail 4701 is horizontally positioned and perpendicular to the multi-stage telescopic rod 4501. Under this configuration, the first end material line clamp 40, the male end material preparation clamp 41, the second end material line clamp 42, and the female end material preparation clamp 43 can move flexibly along the X, Y, and Z axis directions.

[0062] Reference Figures 12-15 The rotating module includes multiple rotary drive motors 4601 mounted on the material preparation clamp 38. The middle part of the first-end material preparation clamp, which is composed of the first-end material preparation clamp and the male-end material preparation clamp 41, is coaxially and fixedly connected to the output shaft of the rotary drive motor 4601. The first-end material preparation clamp is driven to rotate by the rotation of the output shaft of the rotary drive motor 4601. The second-end material preparation clamp is set in the same way.

[0063] Reference Figures 12-15 The material preparation drive assembly 47 includes multiple material preparation drive rails 4701 mounted on the material preparation rack 30. The material preparation drive rails 4701 are horizontally arranged. Each material preparation platform is equipped with a material preparation drive seat 4702 or 4402. Each material preparation drive seat 4702 or 4402 corresponds to a material preparation drive rail 4701, and each material preparation drive seat 4702 or 4402 is slidably connected to the corresponding material preparation drive rail 4701. The pressing drive assembly 51 includes an electrically controlled first telescopic rod 5101 mounted on the material preparation rack 30. The first telescopic rod 5101 is vertically arranged, and the pressing seat 50 is horizontally arranged. One end of the pressing seat 50 is fixedly connected to the movable end of the first telescopic rod 5101. The pressing seat 50 moves vertically by the extension and retraction of the movable end of the first telescopic rod 5101.

[0064] Reference Figures 12-15A first-end pusher roller 59 is provided on the first-end preparation platform 31 along the arrangement direction of the first-end preparation groove 36. A pusher drive motor 60 is provided on the first preparation platform. A pusher screw 61 is coaxially fixedly connected to the output shaft of the pusher drive motor 60. A pusher rod 62 is connected to the screw nut of the pusher screw 61. The end of the pusher rod 62 is rotatably connected to the central shaft of the first-end pusher roller 59. When the first end of the wire harness is respectively inserted into the corresponding first-end preparation groove 36, the pusher drive motor 60 operates, and the pusher screw 61 rotates to drive the pusher roller to move. During the movement of the pusher roller, the first end of the wire harness on the first-end preparation platform 31 is leveled to avoid incomplete insertion of the first end of the wire harness. The second-end preparation platform 32 is also provided with a second-end pusher roller along the arrangement direction of the second-end preparation groove 37. The arrangement and cooperation are the same.

[0065] Reference Figures 12-15 An electrically controlled second telescopic rod 63 is installed in the accommodating space 33. The second telescopic rod 63 is vertically arranged. The fixed end of the second telescopic rod 63 is fixedly connected to the material preparation rack 30, and the movable end of the second telescopic rod 63 is fixedly connected to the bearing plate 64. The bearing plate 64 is located below the pressure seat 50. The extension and retraction of the movable end of the second telescopic rod 63 can drive the bearing plate 64 to move, thereby providing more stable support for the wire harness body in the accommodating space 33.

[0066] In this embodiment, the first end material preparation line gripper, the male end material preparation gripper 41, the second end material preparation line gripper, and the female end material preparation gripper 43 are all pneumatic grippers. The specific internal drive structure can be designed with reference to the pneumatic grippers in the prior art.

[0067] The implementation principle of Example 2 is as follows: By introducing a detachable placement platform module for offline pre-installation of wire harnesses, the time-consuming manual arrangement of wire harnesses is completely separated from the production cycle of the automated main line, creating a production organization method of "parallel offline material preparation and rapid online changeover," which allows for optimal decoupling of manual material preparation and machine loading in time and space. This improves the overall equipment efficiency (OEE), eliminates downtime waiting time during production changeovers, and, through the standardized placement platform design, makes switching between multiple wire harness production varieties quick and easy, greatly enhancing the flexibility of the production line.

[0068] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A feeding mechanism for an automatic wire harness forming equipment, characterized in that: The device includes a loading rack (1), on which a wire harness fixture (2) and a transfer fixture (5) are provided. The wire harness fixture (2) has a positioning groove (3) for inserting wire harness terminals and a fixture wire groove (4) communicating with the positioning groove (3). The transfer fixture (5) has a transfer wire groove (6) for placing wire harnesses. A loading clamp (7) is movably provided on the loading rack (1), and the loading clamp (7) is provided with a clamp for holding the wire harness terminals. The terminal gripper (8) and the wire harness gripper (9) for holding the wire harness body are provided on the feeding rack (1). A first feeding drive assembly (11) and a second feeding drive assembly (12) are provided on the feeding rack (1). The first feeding drive assembly (11) is used to drive the feeding clamp (7) to move in a direction close to or away from the transfer fixture (5). The second feeding drive assembly (12) is used to drive the feeding clamp (7) to move in a direction close to or away from the wire harness fixture (2).

2. The feeding mechanism of an automatic wire harness forming equipment according to claim 1, characterized in that: The transfer trough (6) includes a transfer positioning trough (3) for placing the wire harness terminal and a transfer trough (6) for placing the wire harness body. An abutment platform (10) is provided between the terminal clamp (8) and the wire harness clamp (9). The cross-sectional dimension of the slot width direction of the transfer trough (6) is larger than the cross-sectional dimension of the abutment platform (10) in the corresponding width direction.

3. The feeding mechanism of an automatic wire harness forming equipment according to claim 2, characterized in that: The cross-sectional dimension of the groove (4) of the fixture is greater than the cross-sectional dimension of the corresponding width direction of the abutment platform (10).

4. The feeding mechanism of an automatic wire harness forming equipment according to claim 1, characterized in that: The wire harness has a first end and a second end, the first end being provided with a male terminal and the second end being provided with a female terminal; The wire harness fixture (2) is provided with a plurality of fixture wire grooves (4). The positioning groove (3) includes a first positioning groove (301)(3) and a second positioning groove (302)(3) provided on the wire harness fixture (2). The shape of the first positioning groove (301)(3) matches the male terminal, and the shape of the second positioning groove (302)(3) matches the female terminal. The first positioning groove (301)(3) is connected to at least one of the fixture wire grooves (4), and the second positioning groove (302)(3) is connected to at least one of the fixture wire grooves (4). The transfer cable tray (6) includes a first transfer cable tray (6) and a second transfer cable tray (6) formed on the transfer fixture (5). The first transfer cable tray (6) is used to place the first end of the cable bundle, and the second transfer cable tray (6) is used to place the second end of the cable bundle. The terminal gripper (8) includes a first gripper (801) and a second gripper (802) disposed on the loading clamp (7). The first gripper (801) is used to grip the male terminal, and the second gripper (802) is used to grip the female terminal.

5. The feeding mechanism of an automatic wire harness forming equipment according to claim 1, characterized in that: Multiple transfer fixtures (5) are provided, and multiple movable seats (13) are provided on the loading rack (1). Each transfer fixture (5) is connected to a movable seat (13). The loading rack (1) is provided with a docking moving rail (14) and a pre-moving rail (15). The first loading drive assembly (11) is used to drive the loading clamp (7) to move in a direction close to or away from the docking moving rail (14). Two circulating moving rails (16) are movably provided on the loading rack (1). The loading rack (1) is provided with a moving rail drive assembly (17) for driving the two circulating moving rails (16) to dock with the docking moving rail (14) or the pre-moving rail (15). The movable seat (13) can move on the docking moving rail (14) and / or the pre-moving rail (15). The loading rack (1) is provided with a moving seat (13) drive assembly for driving the moving seat (13) to move.

6. The feeding mechanism of an automatic wire harness forming equipment according to claim 5, characterized in that: The transfer fixture (5) is provided with a first limiting groove (18), and a first limiting block (19) is movably provided on one side of the docking moving rail (14). The loading rack (1) is provided with a first limiting drive assembly (20), which is used to drive the first limiting block (19) to be inserted into the first limiting groove (18).

7. The feeding mechanism of an automatic wire harness forming equipment according to claim 1, characterized in that: The loading rack (1) is provided with a lifting rail (21), and a lifting seat (22) is movably provided on the lifting rail (21). The lifting seat (22) is provided with a fixture support seat (23) for supporting the wire harness fixture (2). The fixture support seat (23) is provided with an infeed / outfeed conveyor (28), which is used to drive the wire harness fixture (2) to move in a direction perpendicular to the lifting seat (22).

8. The feeding mechanism of an automatic wire harness forming equipment according to claim 7, characterized in that: The loading rack (1) is provided with a waiting rack (25) on one side. The conveyor belt is provided with a feeding conveyor (26) and a discharging conveyor (27). The lifting seat (22) is movable on the lifting rail (21) to dock with the feeding conveyor (26) or the discharging conveyor (27) respectively. The feeding conveyor (26) is provided with a feeding conveying drive assembly (24) for driving the wire harness fixture (2) to move in a direction close to the lifting seat (22). The discharging conveyor (27) is provided with a discharging conveying drive assembly (29) for driving the wire harness fixture (2) to move in a direction away from the lifting seat (22).

9. The feeding mechanism of an automatic wire harness forming equipment according to claim 4, characterized in that: A material preparation rack (30) is provided on one side of the feeding rack (1). The material preparation rack (30) is provided with a first end material preparation platform (31) and a second end material preparation platform (32) opposite to each other. A receiving space (33) for accommodating the wire harness body is left between the first end material preparation platform (31) and the second end material preparation platform (32). A first placement platform (34) is detachably connected to the first end preparation platform (31), and a plurality of first end preparation slots (36) are provided on the first placement platform (34). A second placement platform (35) is detachably connected to the second end preparation platform (32), and a plurality of second end preparation slots (37) are provided on the second placement platform (35). The first end preparation slots (36) and the second end preparation slots (37) correspond one to one and are interconnected. The material preparation rack (30) is movably provided with a material preparation clamp (38), the material preparation clamp (38) is provided with a first end material preparation claw and a second end material preparation claw, the material preparation rack (30) is provided with a first material preparation drive assembly (47)(44) and a second material preparation drive assembly (47)(45), the first material preparation drive assembly (47)(44) is used to drive the material preparation clamp (38) to move in a direction close to or away from the transfer fixture (5), the second material preparation drive assembly (47)(45) is used to drive the material preparation clamp (38) to move in a direction close to or away from the material preparation trough, the material preparation rack (30) is provided with a rotary drive module (46), the rotary drive module (46) is used to drive the material preparation clamp (38) to rotate to a direction that docks with the loading clamp (7).

10. The feeding mechanism of an automatic wire harness forming equipment according to claim 9, characterized in that: The first end preparation platform (31) and the second end preparation platform (32) are movably disposed on the preparation rack (30). The preparation rack (30) is provided with a preparation drive assembly (47), which is used to drive the first end preparation platform (31) and the second end preparation platform (32) to move in directions relative to each other or away from each other. A first support platform (48) is provided on the side of the first end preparation platform (31) away from the second end preparation platform (32), and a second support platform (49) is provided on the side of the second end preparation platform (32) away from the first end preparation platform (31). The first end material preparation claw includes a first end material preparation line claw and a male end material preparation claw (41) disposed on the material preparation clamping seat (38). The position of the male end material preparation claw (41) corresponds to the position of the first support platform (48). The second end material preparation claw includes a second end material preparation line claw and a female end material preparation claw (43) disposed on the material preparation clamping seat (38). The position of the female end material preparation claw (43) corresponds to the position of the second support platform (49). The accommodating space (33) is provided with a pressing seat (50), and the material preparation rack (30) is provided with a pressing drive assembly (51). The pressing drive assembly (51) is used to drive the pressing seat (50) to move in a direction that is not parallel to the first end material preparation table (31).

Images