Hanging assembly tool

Abstract

The application relates to the technical field of tooling, in particular to a hanging assembly tooling. The tooling comprises a clamping head and a handle. The body of the clamping head is a plane plate. A notch and a through hole are formed in the plane plate. One side of the notch is communicated with the outside of the plane plate to form an opening. The through hole is located on the side of the notch away from the opening. The handle is connected to the clamping head, and the length direction of the handle extends away from the opening. Through the combination of the plane plate adapting to the gap, the lateral clamping of the opening through hole and the external force of the handle, the dependence on the internal hand operation space is broken, the tooling becomes the extension tool of the hand, and the alignment and clamping action of the rubber hanging and the lifting hook in the closed and semi-closed space are completed.

Description

Technical Field

[0001] This application relates to the field of tooling technology, and in particular to a hanging assembly tooling. Background Technology

[0002] The exhaust system is a component of the automotive powertrain, and its assembly stability directly affects the overall vehicle driving performance and NVH (noise, vibration, and harshness) performance. The rubber hanger is a connecting component between the exhaust system and the vehicle frame. It is mainly used to achieve a flexible connection between the exhaust system and the vehicle frame, and to buffer the vibration generated by the exhaust system during operation through its own elasticity. At the same time, it fixes the installation position of the exhaust system to prevent the exhaust system from interfering with surrounding components due to displacement during vehicle operation.

[0003] Currently, the traditional assembly process for exhaust system rubber hangers follows a fixed sequence. First, the upper hole of the rubber hanger is connected to the frame hook welded to the chassis. Next, the side steps and muffler are assembled. In some models, the side step motor is pre-installed on the side step, and the muffler hook is pre-welded to the muffler body. Finally, the lower hole of the rubber hanger is aligned with the muffler hook, thus completing the exhaust system's suspension. The entire process relies on manual alignment and assembly by operators, requiring work to be performed within the space created by the chassis, side steps, and muffler.

[0004] However, with the increasing variety of vehicle configurations and the increasingly compact layout of the chassis area, the assembly space for rubber suspension hangers is directly squeezed. The assembly location of the rubber suspension hangers is surrounded by components such as side pedal motors, side steps, mufflers, and the chassis, forming a narrow, enclosed or semi-enclosed space. Operators lack sufficient hand space to maneuver when performing the rubber suspension hanger assembly, especially during the docking process with the muffler hook, making precise assembly difficult. This not only increases the workload of operators but also prolongs the assembly time per cycle, slowing down the production line and reducing production efficiency. Improper assembly may also prevent the rubber suspension hangers from properly performing their cushioning, vibration damping, and fixing functions, potentially leading to abnormal vibrations and noise in the exhaust system during driving, or even displacement and collisions, posing a risk to the reliability and safety of the entire vehicle. Utility Model Content

[0005] This application addresses, to at least some extent, one of the technical problems in the related art.

[0006] Therefore, this application aims to provide a hanging assembly fixture.

[0007] To achieve the above objectives, this application provides a hanging assembly fixture, comprising: The snap-fit ​​connector includes a flat plate; the flat plate has the following openings: A notch is formed at one edge of the flat plate; A through hole, wherein the through hole is located on the side of the notch away from the opening of the notch; A handle is attached to the connector portion, and the length of the handle extends in a direction away from the opening of the notch.

[0008] In the technical solution, the main body of the card connector adopts a flat plate structure. The thinness of the flat plate can be embedded in the narrow gap between the rubber hanger and the frame hook. It can directly extend into the target assembly area without disassembling the surrounding side pedals and muffler already assembled components, solving the problem that traditional tooling is too large to enter compact spaces.

[0009] The notch is located on the flat plate, and the connection with the outside is an opening. In a narrow space, if it is axially inserted, sufficient straight operating space needs to be reserved. However, the opening design allows the tool to be directly inserted from the side between the head of the frame hook and the rubber hanger, without reserving axial operating space. This solves the problem that the hand cannot reach into the axial path and cannot complete the insertion action.

[0010] By combining a flat plate with adjustable gaps, lateral clamping via open through-holes, and external force application via the handle, the system eliminates reliance on internal hand operating space, making the fixture an extension of the hand. This allows for the alignment and engagement of the rubber hanger and hook within enclosed and semi-enclosed spaces. Traditionally, without fixtures, operators must repeatedly adjust hand positions and attempt alignment, slowing down the production line. This solution standardizes assembly movements, shortens single assembly time, and avoids rubber hanger cushioning failure due to improper manual assembly.

[0011] In some embodiments of this application, the notch includes an arc segment with a radius of curvature greater than or equal to the diameter of the frame hook, such that the arc segment can be engaged with the frame hook. The diameter of the through hole is larger than the diameter of the muffler hook head, so that the muffler hook head can be inserted into the through hole.

[0012] In the technical solution, the frame hook has a cylindrical structure. The curved segment fits into the curved outer surface of the frame hook, with the radius of curvature of the curved segment being greater than or equal to the radius of curvature of the outer circle of the frame hook, allowing the outer contour of the frame hook to engage with the curved segment. During installation, the curved segment naturally embeds into the gap between the head of the frame hook and the rubber hanger. The diameter of the through hole is larger than the diameter of the head of the muffler hook, allowing the head of the muffler hook to pass through the through hole without repeated adjustments to the engagement angle, improving installation efficiency and solving the problem of non-curved engagement surfaces easily getting stuck at the edge of gaps and difficult to install.

[0013] In some embodiments of this application, the through hole is an oblong hole, and the length direction of the oblong hole is consistent with the length direction of the handle.

[0014] In the technical solution, there may be a slight deviation of 1-2mm in the welding position of the frame hook, and the rubber hanger may also experience gap position shift due to elastic deformation. The length direction of the oblong hole is consistent with the handle, i.e., along the direction of the operator's force, providing a certain amount of movement in this direction. After the clamping head is initially positioned, the muffler is slightly pushed along the length direction of the handle. The muffler hook can pass through the hanging hole of the exhaust hanger through the long axis allowance of the oblong hole, and then through the through hole. This design avoids the problem of tooling not being able to be installed due to positional deviation of the traditional circular through hole, and is suitable for operation scenarios with limited visibility in confined spaces and where repeated adjustment of tooling angle is not possible.

[0015] In some embodiments of this application, an adjusting screw is further included, which passes through and is threaded to the flat plate, the end of the adjusting screw is located in the through hole, and the length direction of the adjusting screw is consistent with that of the handle; One end of the adjusting screw forms an abutment end for abutting the muffler hook. By rotating the adjusting screw, the adjusting screw can be extended or retracted along its own axis to adjust the distance between the arc-shaped segment and the abutment end.

[0016] In traditional solutions, differences in vehicle configurations or production tolerances necessitate the separate design of fixed-size tooling for different specifications, leading to frequent tooling changes and high costs. The adjusting screw, connected by a thread, extends and retracts along its own axis, actively adjusting the distance between the curved section and the contact end. When dealing with the spacing of the frame hooks for different vehicle models, or the dimensional tolerances of components within the same vehicle model, tooling changes are unnecessary; simply rotating the screw adapts the distance. In one installation method, if the distance between the two mounting holes of the rubber hanger is too large, the screw can be screwed in to shorten the distance; if the distance is too small, the screw can be unscrewed to increase the space. This design overcomes the limitation of the single adaptability of traditional fixed-size tooling, achieving compatibility of one tooling set with multiple vehicle models and components with varying tolerances, thus reducing tooling changeover costs.

[0017] In some embodiments of this application, a boss is provided on the flat plate at the position through which the adjusting screw passes, along the thickness direction of the flat plate, and the adjusting screw passes through the boss to improve the stability of the connection between the adjusting screw and the flat plate.

[0018] In this technical solution, when the adjusting screw passes through the boss, the thread can be set on the boss to avoid the problem of the adjusting screw not being installed properly due to insufficient thickness of the flat plate. The boss improves the connection strength between the screw and the flat plate. It can stably withstand the torque and support force during adjustment and assembly, prevent the screw from loosening or stripping, and ensure that the tooling maintains a reliable connection even during high-frequency use on the production line.

[0019] In some embodiments of this application, the flat plate is provided with a notch, which is located in a position where it is easy to interfere during operation.

[0020] In the technical solution, the flat plate has a notch at a location prone to interference during operation to avoid obstacles and optimize the adaptability of confined spaces. This notch can specifically avoid easily interfering structures around the rubber hanger and the frame hook, such as side pedal mounting brackets, muffler mounting seats, frame weld protrusions, bolt heads, etc. Even in scenarios with dense surrounding components and extremely tight gaps, it can prevent the edge of the flat plate from scratching, getting stuck, or touching these components, ensuring that the clamping head can smoothly extend into the target assembly area along the preset path. There is no need to repeatedly adjust the tooling angle or hand posture to avoid interference, thus improving operational flexibility.

[0021] In some embodiments of this application, the opening of the notch is provided with an outwardly flared guide slope; the edges of the flat plate of the snap connector are all provided with rounded corners to prevent scratching of the rubber hanger or frame components during assembly.

[0022] In this technical solution, the guide ramp gradually widens outward from the through-hole opening. Even if the operator fails to align the tooling perfectly with the gap between the frame hook and the rubber hanger, the ramp can guide the tooling to the correct engagement position through contact guidance, eliminating the need for repeated fine-tuning and reducing the number of adjustments required for blind operation in confined spaces. The ramp's angle can be adapted to the tooling's insertion direction. As the tooling moves into the gap, the ramp first contacts the hook or rubber hanger, then slides smoothly to guide the gap to the target position, shortening the engagement time per attempt.

[0023] In some embodiments of this application, the handle is a cylindrical rod-shaped structure, and the outer circumferential surface of the handle is provided with anti-slip texture to meet the gripping and force application needs of operators in confined assembly spaces.

[0024] In this technical solution, the operator can naturally fit the cylindrical handle without having to deliberately adjust their hand posture or rotate the handle to find a grip position. This addresses the problem of limited hand movement in confined spaces and avoids wasting time due to an unsuitable handle shape causing difficulty in gripping and the need for repeated adjustments.

[0025] The anti-slip texture increases the roughness of the outer circumference of the handle. Even if the hands are oily, the texture can still be embedded in the gaps between the fingerprints, ensuring that the operator's hand does not slide relative to the handle when applying force. The force can be transmitted to the locking joint, avoiding force deviation due to slippage.

[0026] In some embodiments of this application, the connector portion is further provided with a connecting handle, the connecting handle is integrally formed with the flat plate, and the connecting handle is detachably connected to the handle.

[0027] In this technical solution, the connecting handle and the flat plate are integrally molded, without any seams or detachable interfaces, thus avoiding the stress concentration problem that occurs when spliced ​​connections repeatedly transmit torque. If the handle is damaged, it is not necessary to replace the entire locking joint; only the damaged handle needs to be disassembled and replaced with a new one.

[0028] In some embodiments of this application, the thickness of the flat plate at the connector is 1mm to 6mm to accommodate the gap between the rubber hanger and the frame hook, thus avoiding interference with surrounding components during assembly.

[0029] In the technical solution, the thickness of the flat plate is set to 1mm to 6mm. The lower limit of 1mm can ensure that the flat plate has basic structural strength and can be embedded in very small gaps. The upper limit of 6mm can cover the gap range of most vehicle models and avoid the inability to insert into the gap due to excessive thickness.

[0030] As can be seen from the above technical solutions, additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the hanging assembly tooling; Figure 2 This is a schematic diagram of the overall structure of the hanging assembly tooling according to another embodiment; Figure 3 It is a magnified view of the hanging assembly tooling in its installation position; Figure 4 This is a magnified view of the hanging assembly fixture in its installation position from another angle.

[0032] In the above figures: 1. Connector head; 11. Flat plate; 111. Notch; 112. Arc-shaped segment; 12. Connecting handle; 13. Through hole; 14. Boss; 15. Guide bevel; 16. Rounded corner; 17. Notched corner; 2. Handle; 3. Adjusting screw; 31. Abutting end; 32. Rotary operating part; 4. Exhaust ventilation hanger; 5. Chassis hook; 6. Frame; 7. Muffler; 8. Silencer hook. Detailed Implementation

[0033] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0034] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments. In the prior art, the exhaust system is a component of the automotive powertrain, and its assembly stability is directly related to the overall vehicle driving performance and NVH (noise, vibration, and harshness) performance. The rubber hanger is a connecting component between the exhaust system and the vehicle frame. It is mainly used to achieve a flexible connection between the exhaust system and the vehicle frame, and to buffer the vibration generated by the exhaust system during operation through its own elasticity. At the same time, it fixes the installation position of the exhaust system to prevent the exhaust system from interfering with surrounding components due to displacement during vehicle operation.

[0035] Currently, the traditional assembly process for exhaust system rubber hangers follows a fixed sequence. First, the upper hole of the rubber hanger is connected to the frame hook welded to the chassis. Next, the side steps and muffler are assembled. In some models, the side step motor is pre-installed on the side step, and the muffler hook is pre-welded to the muffler body. Finally, the lower hole of the rubber hanger is aligned with the muffler hook, thus completing the exhaust system's suspension. The entire process relies on manual alignment and assembly by operators, requiring work to be performed within the space created by the chassis, side steps, and muffler.

[0036] However, with the increasing variety of vehicle configurations and the increasingly compact layout of the chassis area, the assembly space for rubber suspension hangers is directly squeezed. The assembly location of the rubber suspension hangers is surrounded by components such as side pedal motors, side steps, mufflers, and the frame, forming a narrow, enclosed or semi-enclosed space. When operators are working with the rubber suspension hangers, especially during the docking of the lower hole with the muffler hook, they lack the necessary hand movement space, making precise assembly difficult. This not only increases the workload of operators but also prolongs the assembly time per cycle, slowing down the production line and reducing production efficiency. Improper assembly may also prevent the rubber suspension hangers from properly performing their cushioning, vibration damping, and fixing functions, leading to abnormal vibrations and noise in the exhaust system during driving, or even displacement and collisions, posing a risk to the reliability and safety of the entire vehicle.

[0037] This application proposes an assembly fixture for a rubber hanger of an exhaust system. It features a snap-fit ​​connector, with a notch on one side of the flat plate connecting to the outside. The notch forms an opening, and a handle extends from the snap-fit ​​connector along its length away from the opening. The notch includes an arc-shaped segment. A boss is provided on the flat plate corresponding to the position where the adjusting screw passes through. A hexagonal rotating operating part is provided on the adjusting screw away from the contact end. An outwardly flaring guide slope is provided at the opening, and the edges of the flat plate are rounded. The snap-fit ​​connector is detachably connected to the handle via a connecting handle integrally formed with the flat plate. The flat plate thickness is 1mm to 6mm. This fixture achieves precise and efficient assembly of the rubber hanger of the exhaust system in a compact assembly environment with limited hand operating space. It solves the problems of assembly space constraints due to side pedal motors, side pedals, mufflers, and the frame, which make assembly difficult for operators, affect production line pace, and easily cause abnormal vibration and noise in the exhaust system due to improper assembly.

[0038] In the following, embodiments of this application will be described in detail with reference to the accompanying drawings.

[0039] As attached Figures 1 to 4 As shown, this application provides a suspension assembly fixture including a snap-fit ​​connector 1. The body of the snap-fit ​​connector 1 adopts a flat plate 11 structure, which is thin and adaptable to narrow assembly spaces. The flat plate 11, due to its thinness, can be directly embedded in the narrow gap between the rubber suspension and the frame hook 5. In scenarios where the assembly space is squeezed due to the addition of components such as the side pedal motor to the vehicle chassis, there is no need to disassemble the already assembled side pedals, muffler 7, and other surrounding components. Compared to traditional, bulky fixtures that cannot enter compact spaces and require repeated adjustments or even disassembly of surrounding components, this flat plate 11 structure can directly extend into the target assembly area, reducing pre-assembly preparation steps and improving operational convenience.

[0040] In some embodiments, a notch 111 is provided on the flat plate 11 of the hanging assembly fixture. The notch 111 is on the flat plate 11, and the notch 111 is an opening that communicates with the outside. If a traditional assembly fixture adopts an axial insertion design, sufficient straight operating space must be reserved to fit the fixture onto the hook. In the semi-enclosed space formed by the side pedal motor, the frame 6, and the muffler 7, the axial operating path is easily blocked, and the operator's hand cannot reach in. The notch 111 structure allows the fixture to be directly inserted from the side into the space between the head of the frame hook 5 and the rubber hanger, without the need to reserve axial operating space. This solves the problem that the hand cannot reach into the axial path and cannot complete the insertion action, allowing the locking action to be directly performed in a limited space.

[0041] In some embodiments, a through hole 13 is provided on the flat plate 11 of the hanging assembly fixture. The through hole 13 is located on the side of the notch 111 away from the opening, and the position of the through hole is co-located with the notch 111.

[0042] In one installation method, the first step is to manually install the rubber hanger onto the frame hook 5; the second step is to assemble the side pedal and muffler 7, with a muffler hook 8 on the muffler 7; the third step is to use the hanger assembly tool, rotate the handle 2, and adjust the clamping part 1 of the hanger assembly tool to be parallel to the rubber hanger, with the notch 111 engaging between the upper hook head of the frame 6 and the rubber hanger through the opening; the fourth step is to adjust the position of the muffler 7 using the arc-shaped section 112 of the clamping part 1 as a fulcrum, so that the muffler hook 8 is aligned with the through hole 13; the fifth step is to push the hanger assembly tool along the axial direction of the hole to assemble the lower hole of the rubber hanger onto the muffler hook 8.

[0043] In some embodiments, the handle 2 is connected to the snap-fit ​​connector 1 and extends in the direction away from the opening of the notch 111. After the tooling is inserted into a narrow space, the operator does not need to extend their hands into the enclosed area. They only need to hold the handle 2 from the outside, using the handle 2 as an extension tool for their hands, thus eliminating the dependence on the internal hand operating space. The external force application method can standardize the assembly action. The operator does not need to repeatedly adjust their hand posture and try to align the tooling during assembly. They only need to control the tooling to complete the snap-fit ​​and alignment through the handle 2, which shortens the assembly time per cycle, solves the problem of slowing down the production line cycle, avoids the failure of the rubber suspension buffer and vibration damping function due to improper manual assembly, reduces the risk of abnormal vibration, noise or displacement collision of the exhaust system during driving, and ensures the reliability and safety of the whole vehicle.

[0044] In some embodiments, the notch 111 includes an opening and an arc-shaped segment 112. The radius of curvature of the arc-shaped segment 112 is greater than or equal to the diameter of the frame hook 5, so that the arc-shaped segment 112 can be inserted between the head of the frame hook 5 and the rubber hanger. At the same time, the muffler hook 8 also needs to be able to be inserted into the through hole 13. Through the arc-shaped fitting design of the arc-shaped segment 112 and the outer circular surface of the frame hook 5, the radius of curvature of the arc-shaped segment 112 is greater than or equal to the radius of curvature of the outer circle of the frame hook 5, so that the outer contour of the frame hook 5 can be inserted into the arc-shaped segment 112. The arc-shaped structure can be naturally embedded in the gap between the head and the rubber hanger, without the need to repeatedly adjust the snap-fit ​​angle, which solves the problem that traditional non-arc snap-fit ​​surfaces are difficult to insert due to mismatch with the shape of the head and easy to get stuck at the edge of the gap.

[0045] In some embodiments, the through hole 13 is an oblong hole, with its length direction aligned with that of the handle 2. However, in actual production, there may be a slight deviation of 1-2mm in the welding position of the frame hook 5, and the rubber hanger may also experience gap position shifts due to elastic deformation. The oblong hole's length direction aligns with the handle 2, i.e., along the direction of the operator's force, providing a certain amount of room for movement in that direction. After the snap-fit ​​connector 1 is initially positioned, a slight push along the length of the handle 2 on the muffler 7 allows the muffler hook 8 to pass through the hanging hole of the exhaust hanger 4 and then through the through hole 13, thanks to the long axis allowance of the oblong hole. This design avoids the problem of tooling not being able to be positioned due to positional deviations in traditional circular through holes, and is suitable for operation scenarios where visibility is limited in confined spaces and repeated adjustments to the tooling angle are not possible.

[0046] In some embodiments, the tooling further includes an adjusting screw 3, which is perpendicular to the inner wall of the through hole 13 and threadedly connected to the flat plate 11. The length direction of the adjusting screw 3 is consistent with that of the handle 2. The adjusting screw 3 passes through and is threadedly connected to the flat plate 11, with its end located inside the through hole 13. Due to differences in vehicle configuration or production tolerances, traditional fixed-size tooling needs to be designed separately for different specifications, resulting in frequent changes and high costs. The adjusting screw 3 achieves extension and retraction along its own axis through a threaded connection, which can actively adjust the distance between the arc segment 112 and the abutment end 31. When dealing with the spacing of the frame hooks 5 of different vehicle models, or the dimensional tolerances of parts of the same vehicle model, there is no need to change the tooling; the gap can be adapted simply by rotating the screw.

[0047] One end of the adjusting screw 3 forms an abutment end 31 for abutting the muffler hook 8. By rotating the adjusting screw 3, the adjusting screw 3 can be extended or retracted along its own axis to adjust the distance between the arc segment 112 and the abutment end 31.

[0048] In another installation method, if the distance between the two mounting holes of the rubber hanger is too large, a screw can be screwed in to shorten the distance; if the distance is too small, the screw can be unscrewed to expand the space. This design solves the limitation of the single adaptability of traditional fixed-size tooling, enabling one set of tooling to be compatible with multiple vehicle models and multiple tolerance parts, reducing tooling changeover costs.

[0049] The installation steps are as follows: First, manually install the rubber hanger onto the muffler hook 8; second, assemble the side pedal and muffler 7; third, use the hanger assembly tool to adjust the distance between the abutment end 31 and the arc section 112 to match the mounting hole spacing of the exhaust hanger 4, rotate the handle 2 to adjust the snap joint 1 of the hanger assembly tool to be parallel to the rubber hanger, and insert the through hole 13 between the muffler hook 8 and the rubber hanger; fourth, adjust the position of the muffler 7, align the frame hook 5 with the notch 111; fifth, push the hanger assembly tool along the axial direction of the hole to assemble the rubber hanger onto the frame hook.

[0050] In some embodiments, a boss 14 along the thickness direction of the flat plate 11 is provided on the flat plate 11 at the position where the adjusting screw 3 passes through. The adjusting screw 3 passes through the boss 14 to improve the stability of the connection between the adjusting screw 3 and the flat plate 11. When the adjusting screw 3 passes through the boss 14, the thread can be set on the boss 14, avoiding the problem of the adjusting screw 3 not being installed properly due to insufficient thickness of the flat plate 11. The boss 14 improves the connection strength between the screw and the flat plate 11. It can stably withstand the torque and support force during the adjustment and assembly process, avoid screw loosening or stripping, and ensure that the tooling maintains a reliable connection during high-frequency use on the production line.

[0051] In some embodiments, a rotating operating part 32 with a regular hexagonal cross-section is provided at the end of the adjusting screw 3 away from the abutment end 31. As a standardized structure, the regular hexagonal shape allows operators to quickly learn to use the machine without additional training, avoiding novice operator errors or prolonged assembly time caused by the special shape of the operating part. If the operating part is accidentally damaged, there is no need to customize irregular parts when replacing it; only the standard regular hexagonal screw needs to be replaced. The maintenance cost is low and the cycle is short, ensuring that the production line will not be shut down for a long time due to tooling maintenance.

[0052] In some embodiments, the flat plate 11 is provided with a notch 17, which is located in a position prone to interference during operation. The notch 17 in the flat plate 11 at a position prone to interference during operation achieves obstacle avoidance and optimizes adaptability in confined spaces. This notch 17 specifically avoids interference-prone structures around the rubber hanger and the frame hook 5, such as the side pedal mounting bracket, the muffler 7 fixing seat, the frame 6 weld protrusion, and bolt heads. Even in scenarios with dense surrounding components and extremely tight gaps, it prevents the edge of the flat plate 11 from scratching, getting stuck, or touching these components, ensuring that the locking part 1 can smoothly extend into the target assembly area along a preset path. This eliminates the need to repeatedly adjust the tooling angle or hand posture to avoid interference, improving operational flexibility.

[0053] In some embodiments, the opening of the notch 111 is provided with an outwardly flared guide ramp 15; the edges of the flat plate 11 of the snap-fit ​​part 1 are all provided with rounded corners 16 to prevent scratching of the rubber hanger or the frame 6 component during assembly. The guide ramp 15 gradually widens outward from the through hole opening. Even if the operator fails to align the tooling completely with the gap between the frame hook 5 and the rubber hanger, the ramp can guide the tooling to the correct snap-fit ​​position through contact guidance, eliminating the need for repeated fine-tuning of the angle and reducing the number of adjustments required for blind operation in confined spaces. The inclination angle of the ramp can be adapted to the tooling insertion direction. When the tooling moves into the gap, the ramp first contacts the hook or rubber hanger, and then slides to guide the notch 111 to the target position, shortening the single snap-fit ​​time.

[0054] In some embodiments, the handle 2 adopts a cylindrical rod-shaped design. The operator can naturally fit the surface of the handle 2 without having to deliberately adjust the hand posture or rotate the handle 2 to find a grip position. This can adapt to situations where the range of hand movement is limited in confined spaces, avoiding the time wasted due to unstable grip or repeated adjustments caused by an unsuitable handle shape.

[0055] In some embodiments, the outer circumferential surface of the handle 2 is provided with anti-slip texture. The anti-slip texture can increase the roughness of the outer circumferential surface of the handle 2. Even if the hand is covered with oil, the texture can be embedded in the gap between the fingers, thereby ensuring that the operator's hand and the handle 2 will not slide relative to each other when exerting force, so that the force can be transmitted to the locking part 1 and prevent the force from shifting due to slippage.

[0056] In some embodiments, the snap-fit ​​connector 1 is further provided with a connecting handle 12, which is integrally formed with the flat plate 11 and detachably connected to the handle 2. The connecting handle 12 and the flat plate 11 are manufactured using an integral molding process, without any splicing gaps or detachable interfaces, thus avoiding stress concentration problems that occur during repeated torque transmission in spliced ​​connections. When the handle 2 is damaged, it is not necessary to replace the entire snap-fit ​​connector 1; only the damaged handle 2 needs to be removed and replaced with a new handle 2.

[0057] In some embodiments, the thickness of the flat plate 11 of the snap-fit ​​connector 1 is 1mm to 6mm to accommodate the gap between the rubber hanger and the frame hook 5, thus avoiding interference with surrounding components during assembly. The thickness of the flat plate 11 is set to 1mm to 6mm. The lower limit of 1mm ensures that the flat plate 11 has basic structural strength while being able to fit into very small gaps; the upper limit of 6mm can cover the gap range of most vehicle models, avoiding the inability to fit into gaps due to excessive thickness.

[0058] In some embodiments, if the thickness exceeds 6mm, the flat plate 11 will rigidly contact the inner wall of the rubber hanger or the surface of the frame hook 5, causing the tooling to fail to be inserted into the target position and blocking the assembly process.

[0059] In some embodiments, if the thickness is less than 1 mm, the thickness of the flat plate 11 is too thin, and the tooling is prone to deformation due to insufficient strength, making it impossible to complete the assembly.

[0060] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A hanging assembly fixture, characterized in that, include: The snap-fit ​​connector (1) includes a flat plate (11); the flat plate (11) has the following openings: A notch (111) is formed at one edge of the planar plate (11); A through hole (13) is located on the side of the notch (111) away from the opening of the notch (111); A handle (2) is connected to the snap-fit ​​connector (1), and the length of the handle (2) extends in the direction away from the opening of the notch (111).

2. The hanging assembly fixture according to claim 1, characterized in that, The notch (111) includes an arc segment (112), the radius of curvature of which is greater than or equal to the radius of curvature of the outer circle of the frame hook (5), so that the arc segment (112) can be inserted into the frame hook (5); The diameter of the through hole (13) is larger than the diameter of the head of the muffler hook (8), so that the head of the muffler hook (8) can be inserted into the through hole (13).

3. The hanging assembly fixture according to claim 2, characterized in that, The through hole (13) is a waist-shaped hole, and the length direction of the waist-shaped hole is consistent with the length direction of the handle (2).

4. The hanging assembly fixture according to claim 3, characterized in that, It also includes an adjusting screw (3), which is threaded through and connected to the flat plate (11). The end of the adjusting screw (3) is located in the through hole (13), and the length direction of the adjusting screw (3) is consistent with that of the handle (2). One end of the adjusting screw (3) forms an abutment end (31) for abutting against the muffler hook (8). By rotating the adjusting screw (3), the adjusting screw (3) can extend and retract along its own axis to adjust the distance between the arc segment (112) and the abutment end (31).

5. The hanging assembly fixture according to claim 4, characterized in that, A boss (14) is provided on the flat plate (11) at the position through which the adjusting screw (3) passes, along the thickness direction of the flat plate (11). The adjusting screw (3) passes through the boss (14) to improve the stability of the connection between the adjusting screw (3) and the flat plate (11).

6. The hanging assembly fixture according to claim 1, characterized in that, The flat plate (11) is provided with a notch (17), which is located in a position that is prone to interference during operation.

7. The hanging assembly fixture according to claim 1, characterized in that, The notch (111) is provided with an outwardly flared guide slope (15); the edge of the flat plate (11) is provided with rounded corners (16) to prevent scratching of the rubber hanger or frame (6) components during assembly.

8. The hanging assembly fixture according to claim 1, characterized in that, The handle (2) is a cylindrical rod-shaped structure, and the outer circumferential surface of the handle (2) is provided with anti-slip texture to meet the operator's grip and force application needs.

9. The hanging assembly fixture according to claim 1, characterized in that, The connector (1) also includes a connecting handle (12), which is integrally formed with the flat plate (11) and is detachably connected to the handle (2).

10. The hanging assembly fixture according to claim 1, characterized in that, The thickness of the flat plate (11) of the snap-fit ​​connector (1) is 1mm to 6mm to avoid interference with surrounding components during assembly.

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