Vertical assembling equipment for front fork support of shock absorber

Abstract

The invention discloses vertical assembling equipment for a shock absorber front fork support. The vertical assembling equipment comprises a shock absorber positioning device, a front fork support positioning device, a tightening device, an opening assembly and a top platform. The shock absorber positioning device is used for bearing a shock absorber and enabling a mounting part of the shock absorber to face upwards; the front fork bracket positioning device is used for positioning a front fork bracket, so that a shock absorber connecting part faces downwards and a side opening faces backwards; the tightening device comprises a tightening gun and a locking assembly which are oppositely arranged, and is used for aligning and tightening the connecting piece; the opening assembly is arranged behind the front fork support positioning device, and an opening part of the opening assembly can be inserted into the side opening to open the shock absorber connecting part. The corresponding device is arranged on the top platform, and the top platform is connected with a lifting driving mechanism and can drive the whole to ascend and descend, so that the expanded connecting part is connected to the shock absorber mounting part in a sleeving mode. The device has the advantages that automation and accurate control of the assembly process are achieved, and the assembly quality, efficiency and data traceability are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shock absorber manufacturing, in particular to a vertical assembly equipment for a shock absorber fork bracket. BACKGROUND

[0002] In the suspension system of vehicles such as automobiles and motorcycles, the fork bracket of a shock absorber is a key component for connecting the shock absorber and the vehicle body, and the assembly quality of the fork bracket directly affects the driving safety and comfort of the vehicle. Figure 2 As shown in the complete assembled shock absorber assembly, which comprises a shock absorber A and a fork bracket B, the structure of the fork bracket B is shown in Figure 1 The shock absorber A has a mounting portion A1 for mounting the fork bracket, and the fork bracket B has a shock absorber connecting portion B1 and a vehicle body connecting portion B2 at opposite ends thereof, wherein the shock absorber connecting portion B1 has a through connecting cavity B11 with an open side, and two opposite tightening walls B12 are provided on the shock absorber connecting portion B1, and the side opening B111 is located between the two tightening walls B12, which is used to provide an assembly allowance when the shock absorber connecting portion B1 is sleeved on the mounting portion A1, and after the sleeve mounting is completed, the assembly allowance is eliminated by installing high-strength bolts C on the two tightening walls B12 and tightening them, so as to realize the tight fitting of the shock absorber connecting portion B1 on the mounting portion A1.

[0003] At present, the assembly of the fork bracket of the shock absorber with the above structure is mainly realized by manual (with wrench or electric tool) tightening after the butt joint of the two components and the installation of high-strength bolts, which depends on the experience of the operator, and the torque fluctuation is large (the error can be more than ±20%), which easily leads to over-tightening or under-tightening of some bolts, thereby causing uneven stress on the bracket and possibly causing deformation or stress concentration; at the same time, the assembly efficiency is low, and the single-piece assembly time is ≥60 seconds, and it is difficult to trace the tightening data. SUMMARY

[0004] The technical problem to be solved by the present application is to provide an assembly equipment for a shock absorber fork bracket with stable assembly and high assembly efficiency.

[0005] The technical solution adopted by the present application to solve the above technical problem is: A vertical assembly equipment for a shock absorber fork bracket, comprising: a shock absorber positioning device for positioning and supporting the shock absorber and making the mounting portion of the shock absorber face upward; a fork bracket positioning device for positioning the fork bracket and making the shock absorber connecting portion of the fork bracket face downward and the side opening thereof face backward; The tightening device comprises a tightening gun and a stop component arranged oppositely and spaced apart, the tightening gun is arranged on one side of the front fork support positioning device and used for aligning the nut or bolt head assembled on the shock absorber connecting part, the stop component is arranged on the other side of the front fork support positioning device and used for aligning and stopping the corresponding bolt or nut; the tightening gun and the stop component are driven to approach or move away from each other by driving components respectively. The spreading component is arranged behind the front fork support positioning device, the spreading component comprises a spreading executor adapted to be inserted into the side opening of the front fork support, the spreading executor has a first spreading part and a second spreading part which can move relatively; after the spreading executor is inserted into the side opening, the first spreading part and the second spreading part can be driven to move away from each other, so as to spread the side opening and expand the connecting cavity. The top platform is connected with a lifting driving mechanism for driving the lifting thereof, so as to drive the front fork support positioning device, the tightening device and the spreading component to lift synchronously, and then make the spreaded shock absorber connecting part be sleeved onto the mounting part of the shock absorber.

[0006] The shock absorber positioning device comprises a positioning tray, the positioning tray is provided with a positioning seat for positioning and supporting the shock absorber, and the positioning seat is detachably mounted on the positioning tray.

[0007] The shock absorber positioning device further comprises a supporting base for supporting the positioning tray, and the positioning tray is detachably placed on the supporting base.

[0008] The shock absorber positioning device further comprises an angle adjusting mechanism for adjusting the posture of the shock absorber before the top platform with the front fork support positioning device, the tightening device and the spreading component are lowered, so that the mounting part of the shock absorber is matched and mounted with the shock absorber connecting part of the front fork support at a predetermined angle.

[0009] The angle adjusting mechanism comprises: The mounting frame is liftable mounted on the equipment rack by the lifting driver; The supporting seat is rotatably mounted on the mounting frame; The rotating driving component is in transmission connection with the supporting seat and used for driving the supporting seat to rotate; The supporting base is provided with a gap part through which the supporting seat passes upward; The lifting driver has a lowered avoiding position and a raised working position; when being in the avoiding position, the positioning tray is placed on the supporting base; when being in the working position, the mounting frame is raised to move the supporting seat upward through the gap part to lift the positioning tray, so that the positioning tray is separated from the supporting base and connected with the lower part of the positioning tray to transmit torque, thereby the supporting seat is driven by the rotating driving component to rotate the positioning tray and the shock absorber thereon.

[0010] The support mechanism is arranged between the mounting frame and the equipment rack to support and lock the mounting frame after the mounting frame is lifted. The support mechanism comprises two support blocks which can move towards or away from each other, and the lower part of the mounting frame is correspondingly provided with two support walls; when the mounting frame is lifted, the two support blocks move towards each other and are supported below the corresponding support walls.

[0011] The clamping mechanism is further arranged to clamp and fix the main body of the shock absorber on the positioning seat after the angle adjustment mechanism completes the angle adjustment of the shock absorber and before the top platform starts to descend.

[0012] The front fork support positioning device is movable forward and backward relative to the top platform.

[0013] The front fork support positioning device comprises: The positioning part is provided with a retractable positioning pin and a first driver for driving the positioning pin to retract and extend; when the front fork support is placed in a preset position, the positioning pin is controlled to automatically extend and be inserted into a connecting hole of a vehicle body connecting part of the front fork support; after the front fork support is assembled with the shock absorber, the positioning pin is controlled to automatically retract; The clamping part is used for limiting and pressing the front fork support from the rear and the front; The clamping part comprises: The limiting assembly has a limiting part for abutting against a specific position of the rear end of the front fork support; The pressing assembly comprises a second driver and a pressing plate driven by the second driver, and is used for pressing the front end of the front fork support from the front.

[0014] The first and second opening-expanding parts are correspondingly arranged above and below, respectively, and can be inserted into a side opening of the front fork support together; The first opening-expanding part is connected with a linear driving mechanism and can move left and right in the horizontal direction; the front end of the second opening-expanding part is provided with a recess for avoiding the bolt to prevent interference; In specific work, when the opening-expanding actuator is inserted into the side opening, the linear driving mechanism drives the first opening-expanding part to move away from the second opening-expanding part, and the side opening is horizontally expanded through the relative separation of the upper and lower contact parts, so that the connecting cavity is expanded.

[0015] Compared with the prior art, the advantages of the present application are that: through the full-process automation and integration design of precise positioning, automatic opening-expanding, cooperative sleeving and servo tightening, the core problems existing in traditional manual assembly, such as inaccurate torque control, unstable assembly quality, low production efficiency and untraceable data, are systematically solved, which not only significantly improves the assembly quality and production efficiency of the product, but also provides a reliable hardware foundation for building a digital and automated intelligent manufacturing unit through modular and flexible design, which is specifically reflected in: (1) The automatic tightening device (servo tightening gun + active stop assembly) is adopted to replace the traditional manual tightening which completely depends on manual operation, the torque can be accurately controlled, the problems of over-tightening or under-tightening caused by different personnel operations are avoided, and the key parameters such as torque and angle during the tightening process can be recorded and stored in real time, so that the whole process tracing and analysis of assembly quality are realized; (2) The positioning and execution system of multi-axis cooperation is designed, including shock absorber angle adjustment, front fork support precise positioning, automatic insertion of support opening part, synchronous lifting and sleeving of top platform, etc., so that the automatic alignment and assembly with high precision can be realized, the reliability and efficiency of assembly are effectively improved, and the assembly efficiency can be improved by at least more than one time; wherein, through the angle adjustment mechanism and precise mechanical positioning, the perfect matching of the shock absorber mounting part and the front fork support connecting part in space angle and position is ensured, the universality is good, the whole set of equipment can adapt to the assembly of different types of shock absorbers and front fork supports; the opening amount of the connecting part can be accurately controlled by the support opening part, the sleeving is realized by the stable downward pressure of the top platform, and the damage of the parts caused by brute force or inaccurate alignment is avoided; (3) The positioning, opening, alignment, sleeving and tightening of multiple independent processes are integrated on a device platform, i.e. the top platform, and the replaceable design (such as detachable positioning seat and limiting plate) and the integration with the assembly line are introduced, so that an integrated and flexible intelligent assembly unit is formed; the carrying of workpieces between multiple stations and the waiting time are eliminated, and the production rhythm is further shortened; the supporting base can be seamlessly connected with the automatic conveying line, and is convenient to easily integrate into the production line of modern intelligent factory; by replacing a small number of parts such as positioning seat and limiting plate, the production of different models of products can be adapted, and the flexibility of the equipment is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of one of the front fork supports in the application; Figure 2 It is a schematic diagram of the three-dimensional structure of the complete assembled shock absorber assembly in the application; Figure 3 It is a schematic diagram of the overall three-dimensional structure of the application; Figure 4 It is Figure 3 It is an enlarged structure schematic diagram of F in the application; Figure 5 It is a partial structure schematic diagram of the positioning and installation of the front fork support on the shock absorber positioning device in the application; Figure 6 It is a schematic diagram of the three-dimensional structure of the positioning tray and the angle adjustment mechanism in the application when they are in the avoiding position; Figure 7 It is a schematic diagram of the three-dimensional structure of the angle adjustment mechanism in the application when it is in the working position; Figure 8A schematic view of a partial structure of the expansion assembly in the present application. DETAILED DESCRIPTION

[0017] The present application is further described in detail below with reference to the accompanying drawings.

[0018] As shown in the drawings, a vertical assembly device for a shock absorber fork bracket, comprising: a shock absorber positioning device 1 for positioning and supporting a shock absorber A, and making the mounting portion A1 of the shock absorber A face upward; a fork bracket positioning device 2 for positioning a fork bracket B, and making the shock absorber connecting portion B1 of the fork bracket B face downward and the side opening B111 thereof face backward; a tightening device, comprising a tightening gun 3 and a stop assembly 4 arranged oppositely at intervals, the tightening gun 3 being arranged at one side of the fork bracket positioning device 2 for aligning with a nut D or the head of a bolt C assembled on the shock absorber connecting portion B1, and the stop assembly 4 being arranged at the other side of the fork bracket positioning device 2 for aligning with and stopping a corresponding bolt C or nut D; the tightening gun 3 and the stop assembly 4 are respectively driven to approach or move away from each other by driving components (not labeled in the drawings); an expansion assembly 5 arranged behind the fork bracket positioning device 2, comprising an expansion executor for being inserted into the side opening B111 of the fork bracket B, the expansion executor having a first expansion portion 51 and a second expansion portion 52 capable of relative movement; after the expansion executor is inserted into the side opening B111, the first expansion portion 51 and the second expansion portion 52 can be driven to move away from each other, thereby expanding the side opening B111 and realizing the expansion of the connecting cavity B11; a top platform 6, on which the fork bracket positioning device 2, the tightening device and the expansion assembly 5 are arranged, the top platform 6 being connected with a lifting driving mechanism 61 for driving the lifting thereof, so as to drive the fork bracket positioning device 2, the tightening device and the expansion assembly 5 to lift synchronously, and then make the expanded shock absorber connecting portion B1 be sleeved downward to the mounting portion A1 of the shock absorber A.

[0019] In this embodiment, the driving components for driving the tightening gun 3 and the stop assembly 4 to approach or move away from each other are servo cylinders or precise air cylinders cooperating with linear movement mechanisms.

[0020] In this specific embodiment, the shock absorber positioning device 1 comprises a positioning tray 11, on which a positioning seat 12 for positioning and supporting the shock absorber A is arranged, and the positioning seat 12 is detachably mounted on the positioning tray 11. The detachable design of the positioning seat 12 enables the same device to be adapted to different models and sizes of shock absorbers A by quickly replacing different specifications of positioning seats 12, which greatly enhances the versatility and production line flexibility of the device, eliminates the need for dedicated equipment for each product, reduces equipment investment costs, and shortens the changeover time. At the same time, as the component that directly contacts the shock absorber A, the positioning seat 12 can be designed and manufactured with high precision for specific products, and through detachable connection, the repeatability of the positioning accuracy of each installation can be ensured, avoiding the precision decline caused by direct adjustment or wear. And the damaged or worn positioning seat 12 can be replaced individually, which is convenient and low in cost.

[0021] In this specific embodiment, a supporting base 10 for supporting the positioning tray 11 is also included, and the positioning tray 11 is separably rested on the supporting base 10.

[0022] In this specific embodiment, the shock absorber positioning device 1 further comprises an angle adjustment mechanism 7 for adjusting the posture of the shock absorber A before the top platform 6 with the front fork bracket positioning device 2, the tightening device, and the opening assembly 5 is lowered, so that the mounting part A1 of the shock absorber A is matched and installed with the shock absorber connecting part B1 of the front fork bracket B at a predetermined angle.

[0023] In this specific embodiment, the angle adjustment mechanism 7 comprises: a mounting frame 71 which is liftable mounted on the equipment rack E through a lifting driver 72; a supporting seat 73 which is rotatably mounted on the mounting frame 71; a rotating driving component 74 which is in transmission connection with the supporting seat 73 and is used for driving the supporting seat 73 to rotate; the supporting base 10 is provided with a gap 101 for the supporting seat 73 to pass upward; the lifting driver 72 has a lowered avoiding position and a raised working position; when in the avoiding position, the positioning tray 11 is rested on the supporting base 10; when in the working position, the mounting frame 71 is raised, the supporting seat 73 moves upward through the gap 101 to jack up the positioning tray 11, so that the positioning tray 11 is separated from the supporting base 10 and forms a connection with the lower part of the positioning tray 11 which can transmit torque, so as to drive the positioning tray 11 and the shock absorber A thereon to rotate through the rotating driving component 74 driving the supporting seat 73.

[0024] The angle adjustment mechanism 7 has a clear avoidance position and a working position, and realizes space crossing through the avoidance position part 101. In the avoidance position, the mechanism is completely lowered, the supporting base 10 can freely support and transport the workpiece, and the angle adjustment function does not interfere with the logistics process; in the working position, the mechanism is raised, passes through the avoidance position part 101, actively grabs and lifts the workpiece to make it separate from the transport platform, and then performs rotation adjustment. The contradiction between the fixed adjustment mechanism hindering the workpiece flow and the workpiece that cannot be stably adjusted is solved, and the spatial decoupling and time parallelism of the positioning and adjustment process and the material transport process in the full-automatic production line are realized. The torque of the rotation driving part 74 is directly and gaplessly transmitted to the positioning tray 11 through the supporting seat 73, avoiding the slip, lag or precision loss that may be caused by friction or indirect transmission; the rigid connection ensures that the shock absorber A is stable in posture during rotation and can be accurately controlled to a predetermined angle, laying a foundation for subsequent high-precision sleeve connection; and the design can withstand the gravity of the workpiece and the tray, and provide sufficient support rigidity during adjustment. In the working position, the supporting seat 73 and the lower part of the positioning tray 11 form a connection that can transmit torque, the power transmission is direct, the structure is compact, the action is efficient and reliable. The compound action of "straight lifting and lowering" and "rotating in place" is adopted, all adjustment actions are completed in the same columnar space in the vertical direction, without the need for additional horizontal movement mechanism, and the equipment layout is compact. Lifting and rotation are directly controlled by corresponding drives, the action response is fast, and the positioning is accurate; "lift separation" and "form connection" are the results of the natural realization of the mechanism during the lifting process, without additional complex clamping or locking steps, and the reliability is high.

[0025] In this specific embodiment, the lifting drive 72 is a lifting drive cylinder, and the rotation driving part 74 is a servo motor. The cylinder provides linear motion, fast start-stop speed, strong power, and can quickly lift the heavy mounting frame 71 and the workpiece to the position or back down, shortening the auxiliary time. The servo motor is used to provide rotation, has a wide speed regulation range, low-speed stability, and strong overload capacity, can stably and accurately drive the load to rotate, and has a self-locking function, can be kept at any position without additional brake mechanism. The combination of the two makes the whole adjustment mechanism have fast lifting, accurate rotation, short comprehensive beat, and good dynamic performance.

[0026] In this specific embodiment, the supporting base 10 is a movable conveying platform; when the angle adjustment mechanism 7 is in the avoiding position, the conveying platform carries and fixes the positioning tray 11; when it is necessary to perform angle adjustment, the conveying platform remains stationary, and the angle adjustment mechanism 7 rises to the working position; after assembly is completed, the conveying platform carries the positioning tray 11 together with the assembled shock absorber A of the front fork support B away from the working position and transfers to the next working position. Designing the supporting base 10 as a movable conveying platform (such as a conveying line or an AG docking station) enables the present assembly device to be upgraded from a “isolated” working station to an intelligent module in an automatic production line, which can automatically receive feeding, accurately position, perform assembly, and automatically send out the finished product, realizes automatic transfer of workpieces between working positions, greatly reduces manual handling and waiting time, and provides a key technical basis for building a high-efficiency, unmanned continuous flow production line.

[0027] In this specific embodiment, the supporting seat 73 is upwardly protruding and provided with a positioning column 731, and the positioning tray 11 is correspondingly provided with an up-and-down through positioning hole 111 for positioning and mounting of the positioning column 731. The positioning structure is simple, and the positioning and mounting are stable.

[0028] In this specific embodiment, a supporting mechanism is further arranged between the mounting rack 71 and the equipment rack E for supporting and locking the mounting rack 71 after it is raised. The supporting mechanism includes two supporting blocks 75 that can move towards or away from each other, and the lower part of the mounting rack 71 is correspondingly provided with two supporting walls 712; when the mounting rack 71 is raised, the two supporting blocks 75 move towards each other and are supported below the corresponding supporting walls 712.

[0029] The above-mentioned supporting mechanism provides rigid mechanical locking after the mounting rack 71 is raised through the two supporting blocks 75 that move towards each other, which has multiple core advantages: first, it realizes intrinsic safety, which can absolutely prevent the rack body from falling even if the lifting power fails; second, it provides a zero-drift stable reference for high-precision angle adjustment and assembly, and completely eliminates the risk of elastic deformation of the pneumatic system; at the same time, this design enables the lifting cylinder to be stressed only at the moment of action, greatly reducing the load and wear of its long-term pressure retention, and prolonging the service life of the key components.

[0030] In this specific embodiment, the movement of the two supporting blocks 75 towards or away from each other is driven and realized by a servo cylinder or a precision cylinder cooperating with a linear guide mechanism.

[0031] In this specific embodiment, a clamping mechanism 8 is further included for clamping and fixing the main body part of the shock absorber A located on the positioning seat 12 after the angle adjustment mechanism 7 completes the angle adjustment of the shock absorber A and before the top platform 6 starts to descend.

[0032] In this specific embodiment, the clamping mechanism 8 is located behind the shock absorber positioning device 1. The mounting base (not shown in the figure) supporting the clamping mechanism 8 is fixed to the equipment frame E. To achieve the goal of first avoiding obstacles and then clamping, the main body of this mechanism is designed to move back and forth as a whole. Specifically, it includes: The horizontal drive unit, usually a cylinder or servo electric cylinder, is fixed on the mounting base, and its push rod axis is set along the front-to-back direction (the direction of approaching / moving away from the shock absorber A); The movable frame is connected to the push rod of the horizontal drive unit to drive it to perform forward and backward linear motion; The clamping execution unit includes: A pair of opposing jaws 83, the inner contour of which matches the cylindrical surface or specific shape of the main body (rigid outer cylinder) of the shock absorber A, which is usually lined with a scratch-resistant soft material. The gripper drive, typically a double-acting cylinder or electric gripper, is used to drive a pair of grippers 83 to perform synchronized clamping and opening actions.

[0033] During the loading and angle adjustment phase of shock absorber A, the clamping mechanism 8 retracts to a clearance position, providing ample space for the placement and rotation of shock absorber A and ensuring zero interference. After the angle adjustment mechanism 7 completes its work, the clamping mechanism 8 moves forward to the predetermined working position, so that a pair of grippers 83 are precisely positioned on both sides of the main body of shock absorber A. The gripper drive activates, driving the pair of grippers 83 to close synchronously, firmly gripping the main body of shock absorber A from both sides and completely fixing it. Throughout the entire process of the top platform 6 descending, engaging, tightening, and resetting, the clamping mechanism 8 remains in a clamping state. After all assembly actions are completed, the grippers 83 first open, and then the entire clamping mechanism 8 retracts to the rear clearance position, making room for the transfer or removal of the next workpiece.

[0034] In this specific embodiment, the fork support positioning device 2 can move back and forth relative to the top platform 6. This achieves spatial separation between the assembly station and the loading / avoidance station. In the "front position," the device is in the open loading area, facilitating safe and convenient placement and positioning of the fork support B by manual labor or a robotic arm. After completion, it moves to the "rear position," entering the assembly work area and precisely aligning with the shock absorber A in front to perform subsequent spreading, fitting, and tightening actions. This stroke separation effectively avoids interference between the loading operation and the shock absorber A below and the tightening device above, ensuring both operational safety and efficiency, and ensuring that all executing components work in an orderly manner within a compact space, optimizing equipment layout and cycle time.

[0035] In this specific embodiment, the fork support positioning device 2 is driven to move back and forth as a whole by a servo electric cylinder or a precision cylinder in conjunction with a linear guide mechanism.

[0036] In this specific embodiment, the front fork bracket positioning device 2 includes: The positioning part is provided with a retractable positioning pin 21 and a first driver 22 for driving the positioning pin 21 to extend and retract; when the front fork bracket B is placed in a preset position, the positioning pin 21 is controlled to automatically extend and insert into the connection hole B21 of the vehicle body connection part B2 of the front fork bracket B; after the front fork bracket B and the shock absorber A are assembled, the positioning pin 21 is controlled to automatically retract. The clamping part is used to limit and clamp the fork bracket B from the rear and front. The clamping part includes: The limiting component has a limiting part for abutting against a specific position at the rear end of the fork bracket B; The clamping assembly includes a second driver 24 and a pressure plate 25 driven by the second driver 24 for clamping the front end of the fork bracket B from the front.

[0037] The aforementioned front fork bracket positioning device 2 achieves high-precision, fully automatic, and reliable clamping through a coordinated design of positioning, limiting, and clamping. The automatic telescopic positioning pin 21 of the positioning unit utilizes the existing holes in the vehicle body connection part B2 for precise positioning, ensuring a consistent reference and minimal error. The limiting and clamping components of the clamping unit form stable constraints from both the rear and front directions, effectively preventing workpiece displacement or wobbling during subsequent assembly. The entire process is automatically completed by the actuator without manual intervention, ensuring not only the consistency and reliability of the assembly but also significantly improving clamping efficiency and automation levels, providing a solid foundation for subsequent high-precision assembly processes.

[0038] In this specific embodiment, the limiting part includes a limiting plate 23, and a limiting protrusion 231 is provided on the limiting plate 23.

[0039] In this specific embodiment, the limiting part is detachable to adapt to limiting different types of front fork brackets B.

[0040] In this specific embodiment, the first support portion 51 and the second support portion 52 are respectively arranged vertically and vertically, and can be inserted together into the side opening B111 of the front fork bracket B. The first expansion part 51 is connected to a linear drive mechanism, which can move left and right in the horizontal direction; the front end of the second expansion part 52 is provided with a relief groove 521 to avoid bolts and prevent interference. In actual operation, after the actuator is inserted into the side opening B111, the linear drive mechanism drives the first opening part 51 to move away from the second opening part 52. Through the relative separation of the upper and lower contact parts, the side opening B111 is horizontally opened, thereby expanding the connecting cavity B11. The avoidance groove 521 is used to avoid the bolt C pre-assembled on the tightening wall B12 of the fork bracket B, so that the second opening part 52 can be inserted between the two tightening walls B12 of the fork bracket B without interference, and the first opening part 51 can be directly inserted without the bolt C.

[0041] In this specific embodiment, the spreading component 5 is driven by a cylinder to move back and forth, so as to achieve the overall forward and backward movement.

[0042] In this specific embodiment, the position of the spreading component 5 can be adjusted up and down to adapt to the tightening wall B12 set at different height positions on different front fork bracket B products.

[0043] In this specific embodiment, the tightening gun 3 preferably adopts a servo electric tightening shaft, which has precise torque and angle control functions, mainly including: Tighten the shaft body, with a sleeve 31 at the front end that matches the head of the nut D or bolt C; The first linear drive mechanism, typically a servo electric cylinder or a precision pneumatic cylinder, is used to drive the entire tightening gun 3 forward or backward in the horizontal direction.

[0044] Stop component 4 is an actuator with active drive and precise alignment functions, including: The stop shaft has a stop sleeve 41 at its front end that matches the shape (usually hexagonal head) of the bolt C or nut D, which is used to hold the fastener in place to prevent it from rotating. The second linear drive mechanism, which is opposite to and synchronously arranged with the first linear drive mechanism, is used to drive the stop shaft to move in the horizontal direction.

[0045] Under the control of the equipment's control system, the tightening gun 3 and the stop assembly 4 work together in a precise timing sequence as follows: Step 1: Synchronous alignment and clamping. After the front fork bracket B is positioned and the shock absorber connection part B1 on it is opened and sleeved onto the mounting part A1 of the shock absorber A, the control system simultaneously starts the first and second linear drive mechanisms. The tightening gun 3 and the stop component 4 move towards each other until the corresponding sleeves are accurately sleeved onto the fasteners (such as the head of bolt C and nut D). Step 2: Tightening is performed. The stop assembly 4 maintains axial clamping pressure and locks the rotational freedom of its stop shaft. At the same time, the tightening gun 3 starts to rotate and tightens the bolt C-nut D pair to the process requirements with the preset torque and angle program. Step 3: Synchronous retraction. After tightening is completed, the tightening gun 3 stops rotating, and the two linear drive mechanisms move in opposite directions synchronously, so that the tightening gun 3 and the stop assembly 4 retract together to the initial safe position, making room for the next cycle or the top platform 6 to rise.

[0046] The overall assembly process is as follows: Phase 1: Workpiece Preparation and Positioning (1) Loading and angle pre-adjustment of shock absorber A: The positioning tray 11 carrying shock absorber A is sent to the assembly station by the conveying platform and is precisely positioned and paused; the angle adjustment mechanism 7 is started, the mounting frame 71 is lifted and locked, the support seat 73 lifts the tray and shock absorber A, and the servo motor drives it to rotate to the required angle; then, the clamping mechanism 8 moves forward to clamp the main body of shock absorber A. (2) Loading and clamping of front fork bracket B: The front fork bracket B is placed on the front fork bracket positioning device 2 by manual or robotic arm. The positioning pin 21 on the positioning part automatically extends and inserts into the connecting hole B21 of the vehicle body connecting part B2 of the front fork bracket B. The rear end is abutted by the limiting plate 23 and the front end is pressed by the pressure plate 25 to complete the clamping. At this time, the front fork bracket positioning device 2 is located at the front loading position. Phase Two: Pre-assembly and Alignment (3) Bolt C pre-installation and opening: The operator or auxiliary equipment inserts the high-strength bolt C into the mounting hole B121 of the front fork bracket B tightening wall B12 and pre-tightens the nut D (not tightened); the front fork bracket positioning device 2 moves back to the assembly position; the opening actuator of the opening assembly 5 moves forward as a whole, and its corresponding first opening part 51 and second opening part 52 are simultaneously inserted into the side opening B111 between the two tightening walls B12; then, the linear drive mechanism drives the first opening part 51 to move away from the second opening part 52 (generally horizontally), and through the relative movement of the two, the connecting cavity B11 on the front fork bracket B is expanded; (4) System ready: The two drive cylinders of the tightening device are activated, causing the tightening gun 3 and the stop assembly 4 to move in opposite directions, making enough assembly space available; Third stage: Connecting and final tightening (5) Synchronous connection: The lifting drive mechanism 61 of the top platform 6 is started, driving the top platform 6 and all the components integrated on it to descend synchronously and smoothly; the expanded shock absorber connection part B1 is precisely connected downward to the mounting part A1 of the shock absorber A which has been adjusted in angle. (6) Retraction of the expansion component 5: After the sleeve is completed, the entire expansion component 5 is pulled back by the cylinder, which drives the expansion actuator to exit between the two tightening walls B12, thereby releasing the expansion force on the shock absorber connection part B1. (7) Tightening execution: The two drive cylinders of the tightening device move synchronously, driving the tightening gun 3 and the stop assembly 4 to move towards each other, so that the corresponding sleeves are accurately fitted into the head of bolt C and nut D respectively; the stop assembly 4 locks nut D or bolt C, and the tightening gun 3 rotates according to the preset program to tighten the bolt C-nut D pair to the specified torque. (8) Reset of actuator: After tightening, the tightening gun 3 and the stop assembly 4 retract; the clamping assembly and the positioning part are released; the clamping mechanism 8 is released and retracts; the angle adjustment mechanism 7 drives the positioning tray 11 to rotate back to the initial angle position, the support block 75 of the angle adjustment mechanism 7 is retracted, the mounting frame 71 is lowered, so that the assembled assembly falls back to the conveying platform. Phase 4: Finished Product Circulation (9) Offline and transfer: The conveying platform restarts and transports the positioning pallet 11, which carries the assembled shock absorber A-fork bracket B assembly, to the next station (such as the inspection or packaging station), while preparing for the next workpiece to be assembled.

Claims

1. A vertical assembly apparatus for a shock absorber fork brace, characterized by, include: A shock absorber positioning device is used to position and support the shock absorber and to ensure that the mounting part of the shock absorber faces upward. A fork support positioning device is used to position the fork support and to position the shock absorber connection of the fork support downward and its side opening backward. The tightening device includes a tightening gun and a stop assembly arranged at intervals. The tightening gun is located on one side of the front fork bracket positioning device and is used to align the head of the nut or bolt mounted on the shock absorber connection. The stop assembly is located on the other side of the front fork bracket positioning device and is used to align and stop the corresponding bolt or nut. The tightening gun and the stop assembly are driven by a drive component to move closer or further apart from each other. The spreading assembly is located behind the front fork bracket positioning device. The spreading assembly includes a spreading actuator for fitting into the side opening of the front fork bracket. The spreading actuator has a first spreading part and a second spreading part that can move relative to each other. After the spreading actuator is inserted into the side opening, the first spreading part and the second spreading part can be driven to move away from each other, thereby spreading the side opening open and expanding the connecting cavity. The top platform, fork bracket positioning device, tightening device and spreading component are all set on the top platform. The top platform is connected to a lifting drive mechanism for driving its lifting and lowering, so as to drive the fork bracket positioning device, tightening device and spreading component to lift and lower synchronously, so that the spread shock absorber connection part is sleeved downward onto the shock absorber mounting part.

2. A vertical assembly apparatus for a shock absorber fork brace as defined in claim 1, wherein The shock absorber positioning device includes a positioning tray, on which a positioning seat for positioning and supporting the shock absorber is provided, and the positioning seat is detachably mounted on the positioning tray.

3. A vertical assembly apparatus for a shock absorber fork brace as defined in claim 2, wherein It also includes a support base for supporting the positioning tray, on which the positioning tray can be detachably placed.

4. A vertical assembly apparatus for a shock absorber fork brace as defined in claim 3, wherein The shock absorber positioning device also includes an angle adjustment mechanism, which is used to adjust the attitude of the shock absorber before the top platform, along with the fork bracket positioning device, tightening device, and spreading assembly, descends, so that the mounting part of the shock absorber matches and is installed at a predetermined angle with the shock absorber connection part of the fork bracket.

5. A vertical assembly apparatus for a shock absorber fork brace as defined in claim 4, wherein The angle adjustment mechanism includes: The mounting bracket can be lifted and lowered on the equipment frame via a lifting drive; The support base is rotatably mounted on the mounting bracket; A rotary drive component, which is connected to the support base in a transmission manner, is used to drive the support base to rotate; The supporting base is provided with a clearance portion for the support seat to pass through upwards; The lifting drive has a lowered clearance position and an upper working position; when in the clearance position, the positioning tray rests on the support base; when in the working position, the mounting bracket rises, causing the support seat to move upward through the clearance part and lift the positioning tray, separating the positioning tray from the support base and forming a torque-transmitting connection with the lower part of the positioning tray, thereby driving the support seat to rotate the positioning tray and the shock absorber on it through the rotation drive component.

6. A vertical assembly apparatus for a shock absorber fork brace as defined in claim 5, wherein A support mechanism is also provided between the mounting frame and the equipment frame to support and lock the mounting frame after it is raised; The support mechanism includes two support blocks that can move toward each other or in opposite directions, and two support walls are provided at the bottom of the mounting frame. When the mounting frame is raised, the two support blocks move toward each other and are supported under the corresponding support walls.

7. A vertical assembly apparatus for a shock absorber fork brace as defined in claim 4 wherein The clamping mechanism is used to clamp and fix the main body of the shock absorber on the positioning seat after the angle adjustment mechanism completes the angle adjustment of the shock absorber and before the top platform starts to descend.

8. A vertical assembly apparatus for a shock absorber fork brace as defined in claim 1, wherein The front fork support positioning device is movable forward and backward relative to the top platform.

9. A vertical assembly apparatus for a shock absorber fork brace as defined in claim 1, wherein The front fork support positioning device comprises: The positioning part is provided with a retractable positioning pin and a first driver for driving the positioning pin to retract and extend; when the front fork support is placed in a preset position, the positioning pin is controlled to automatically extend and be inserted into a connecting hole of the vehicle body connecting part of the front fork support; after the front fork support is assembled with the shock absorber, the positioning pin is controlled to automatically retract; The clamping part is used to limit and press the front fork support from the rear and the front; The clamping part comprises: The limiting assembly has a limiting part for abutting against a specific position of the rear end of the front fork support; The pressing assembly comprises a second driver and a pressing plate driven by the second driver, and is used to press the front end of the front fork support from the front.

10. A vertical assembly apparatus for a shock absorber fork brace as defined in claim 1, wherein The first and second opening-expanding parts are arranged in upper and lower correspondence respectively and can be inserted into the side opening of the front fork support together; The first opening-expanding part is connected with a linear driving mechanism and is movable left and right in the horizontal direction; the front end of the second opening-expanding part is provided with a recess for avoiding the bolt to prevent interference; In specific work, when the opening-expanding executor is inserted into the side opening, the linear driving mechanism drives the first opening-expanding part to move away from the second opening-expanding part, the upper and lower contact parts are relatively separated, the side opening is horizontally expanded, and the connecting cavity is enlarged.

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