A method of palletizing an automobile front suspension swing arm assembly

Abstract

The application discloses a kind of material rack packaging methods of automobile front suspension swing arm assembly, belong to the technical field of automobile parts packaging, comprising the following steps: the top plate after unlocking is turned up, so that the middle part of load layer is completely opened;From top to bottom, the middle part of load layer after unlocking is sequentially turned up, until the load layer of the bottom layer is in the state of waiting to be loaded;Workpiece is loaded on the profiling groove of load layer, and workpiece is positioned;The load layer of upper layer is not loaded and is turned down, so that it is locked in horizontal position;The steps of S3 and S4 are repeated, and the workpiece placing procedure of each load layer is completed layer by layer, until the profiling groove of the load layer of the uppermost layer is loaded with workpiece;The application sets up multiple layers of load layer that can be turned over on the material rack, and each load layer is sequentially turned out to open, the loading layer of lower layer is completely opened, and there is no upper structure obstruction when loading and unloading workpiece;Effectively reduce the operation difficulty, improve the overall loading and unloading and loading efficiency.

Description

Technical Field

[0001] This invention belongs to the field of automotive parts packaging technology, specifically a rack packaging method for automotive front suspension control arm assemblies. Background Technology

[0002] The front suspension control arm is a crucial safety component in the front suspension system of a vehicle. It has a long rod structure that integrates various precision components such as bushings, ball joints, and arm bodies. These components have stringent requirements for appearance integrity, dimensional accuracy, and surface cleanliness, and are widely used in the production, warehousing, and logistics of various types of vehicles, including passenger cars and commercial vehicles.

[0003] Currently, the turnover and packaging of automotive front suspension control arms generally use general-purpose pallets with foam protection, or simple fixed racks. These traditional toolings have a simple overall structure and are not specifically designed for the shape of the front suspension control arm, so they cannot fit the contour of the workpiece, leaving room for movement after loading. During factory transfers and long-distance transportation, the control arm is prone to shifting and rubbing against each other due to factors such as vehicle bumps and road vibrations. This causes damage and scratches to precision parts such as bushings, ball joints, and arm bodies, which not only damages the appearance of the workpiece but may also affect the assembly accuracy and performance of the parts. At the same time, conventional layered fixed racks have obvious structural defects, as the upper load-bearing layer obstructs the space of the lower layer. Because the front suspension arm is quite long, workers need to cross the upper components when picking up and placing workpieces, making the operation cumbersome and laborious. This not only significantly reduces the efficiency of loading and unloading operations, but also makes it easy to scratch the workpieces during the operation, causing secondary damage. In addition, traditional tooling lacks a reliable limiting structure, and vibration during the transfer process will further aggravate the shaking of the workpiece, continuously increasing the probability of damage to parts. Overall, its protection and practicality are poor, and it cannot meet the production line's requirements for efficient and safe turnover of the front suspension arm. Summary of the Invention

[0004] The purpose of this invention is to provide a rack packaging method for automotive front suspension control arm assemblies, which solves the technical problems of inconvenient loading and unloading, poor protection, and poor transfer stability of existing automotive front suspension control arm assemblies during transportation or turnover, resulting in surface bumps and scratches on the automotive front suspension control arm assemblies.

[0005] The objective of this invention can be achieved through the following technical solutions: A method for packaging a front suspension control arm assembly for automobiles includes the following steps: S1: Flip the unlocked top panel upwards to fully open the middle load-bearing layer; S2: Flip the unlocked middle support layer from top to bottom until the bottom support layer is in a loading state; S3: Load the workpiece onto the contour groove of the bearing layer and limit the workpiece; S4: Flip the unloaded upper layer downwards to lock it in a horizontal position; S5: Repeat steps S3 and S4 to complete the workpiece placement process for each load-bearing layer, until the workpiece is loaded into the contour groove of the top load-bearing layer.

[0006] Further, prior to step S1, the pin above the top plate is removed to release the locking connection between the top plate and the frame body.

[0007] Furthermore, in steps S1 and S2, by loosening the bolts, the locking rod releases the constraint on the top plate or the load-bearing layer; the locking rod is in a rotating state with respect to the top plate or the load-bearing layer.

[0008] Furthermore, in steps S1 and S2, the top plate or supporting layer is driven to flip upward by extending the gas spring.

[0009] Furthermore, when the top plate or load-bearing layer flips upward, the bolts on the frame body are located in the vertical segment limiting groove of the locking rod, which is used to limit the flipping angle of the top plate or load-bearing layer.

[0010] Furthermore, in step S3, a first contouring groove is provided on the bearing layer of the front lower control arm workpiece, and the first contouring groove is distributed on the first support seat and the second support seat; the front lower control arm workpiece is distributed in a V-shape in the first contouring groove.

[0011] Furthermore, in step S3, a second contouring groove and a third contouring groove are provided on the bearing layer of the front upper swing arm workpiece, and the second contouring groove and the third contouring groove are distributed on the first positioning seat and the second positioning seat; the front upper swing arm workpiece is distributed in an inverted V shape in the second contouring groove and the third contouring groove.

[0012] Furthermore, in step S4, the gas spring retracts, driving the bearing layer to flip downwards, so that the bottom of the bearing layer rests on the upper surface of the positioning column, making the bearing layer horizontal.

[0013] Furthermore, in step S4, the locking rod and the bearing layer are fixed together by tightening the bolts between them.

[0014] Furthermore, after step S5, the top plate is flipped downwards, forming an upper clamping limit on the top layer of workpiece, thus completing the storage of the workpiece by the rack.

[0015] The beneficial effects of this invention are: 1. This invention sets up multiple flip-up bearing layers on the material rack. During operation, each bearing layer is flipped outward in sequence and opened, and the lower loading layer is completely open. There is no upper structure to block the workpiece when loading and unloading. Operators do not need to cross the upper components to carry out the work, which effectively reduces the difficulty of operation and significantly improves the overall loading and unloading efficiency.

[0016] 2. By providing contoured grooves on the bearing layer that match the shape of the workpiece, the present invention can form multi-point support and limit the key parts of the front suspension arm, effectively reducing the problem of workpiece movement and mutual collision; after the bearing layer is closed, the bottom first pressure rod presses and constrains the workpiece below from the vertical direction, which can prevent the workpiece from being bumped or damaged by external force during transportation.

[0017] 3. The present invention provides a gas spring on the frame body, which can assist and buffer the flipping of the load-bearing layer, ensuring a smooth and stable flipping process and greatly reducing the manual operation load; at the same time, a locking rod is provided to mechanically lock the load-bearing layer to prevent it from accidentally flipping open, avoid the workpiece falling, and improve the safety of use. Attached Figure Description

[0018] Figure 1 This is a flowchart of the material rack packaging method of the present invention; Figure 2 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the open top bearing layer in Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the bearing layer flipping in Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the structure of the bearing layer and the workpiece in Embodiment 1 of the present invention; Figure 6 This is a front view schematic diagram of the bearing layer and the workpiece in Embodiment 1 of the present invention; Figure 7 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention; Figure 8 This is a schematic diagram of the structure of the bearing layer and the workpiece in Embodiment 2 of the present invention; Figure 9 This is a front view schematic diagram of the bearing layer and the workpiece in Embodiment 2 of the present invention.

[0019] In the diagram: 1. Frame main body; 11. Positioning column; 2. Bearing layer; 21. First support seat; 22. First contouring groove; 23. First connecting rod; 24. Second support seat; 25. Second connecting rod; 26. First pressure rod; 211. First positioning seat; 212. Second positioning seat; 213. Third positioning seat; 214. Second contouring groove; 215. Third contouring groove; 216. Second pressure rod; 3. Locking rod; 31. Limiting groove; 32. Bolt; 4. Gas spring; 5. Pin; 6. Workpiece; 7. Top plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-4 As shown, a method for packaging a front suspension control arm assembly for automobiles includes the following steps: S1: Flip the unlocked top plate 7 upwards to fully open the middle load-bearing layer 2; Remove the limiting pin 5 above the top plate 7 to release the locking connection between the top plate 7 and the frame body 1; the pin 5 is used to lock the top plate 7 and the frame body 1. In the locked state, the top plate 7 can constrain the displacement of the workpiece 6 in the vertical direction to achieve the top limiting and fixing of the workpiece 6.

[0022] By loosening bolt 32, locking rod 3 releases the constraint on top plate 7; top plate 7 and locking rod 3 are in a rotating state; then gas spring 4 extends, driving top plate 7 to flip upward.

[0023] When the top plate 7 or the load-bearing layer 2 is in an upward flipped state, the bolts on the frame body 1 are located in the vertical section limiting groove 31 of the locking rod 3, thereby limiting the flipping angle of the top plate 7 and avoiding interference and collision with the top plate 7 during the flipping process of the lower load-bearing layer 2.

[0024] The main frame 1 consists of multiple horizontal bars and vertical bars. The overall shape of the main frame 1 is a cuboid. Vertical bars are evenly distributed at the four corners of the main frame 1, and one of the long sides of the main frame 1 is open.

[0025] Positioning columns 11 are fixedly installed on the side wall of the frame body 1 on the open side. The positioning columns 11 are used to support and limit each load-bearing layer 2 in layers. Each load-bearing layer 2 rests on the positioning columns 11 and is kept horizontally arranged. The frame body 1 on the opposite side is hinged to each load-bearing layer 2. The load-bearing layers 2 are vertically and equidistantly distributed inside the frame body 1.

[0026] One end of a gas spring 4 is hinged to one side of the short side of the frame body 1, and the other end of the gas spring 4 is hinged to the bottom of the load-bearing layer 2.

[0027] A locking rod 3 is hinged to the frame body 1 on the side opposite to the gas spring 4. One end of the locking rod 3 is connected to the lower side wall of the bearing layer 2 by bolt 32, and the other end of the locking rod 3 is slidably connected to the frame body 1.

[0028] A limiting groove 31 is provided on the locking rod 3. The limiting groove 31 is L-shaped and consists of a horizontal section and a vertical section. The vertical section is located on the side of the locking rod 3 away from its hinge with the bearing layer 2.

[0029] S2: Flip the unlocked middle support layer 2 from top to bottom until the bottom support layer 2 is in a loading state; By loosening the bolts 32 between the locking rod 3 and the bearing layer 2, each bearing layer 2 is in a rotating state with respect to the locking rod 3. Then, the gas spring 4 extends, causing the bearing layer 2 to flip upward.

[0030] S3: Load the workpiece 6 onto the contour groove of the bearing layer 2 to limit the position of the workpiece 6; S4: Flip the unloaded upper layer 2 downwards to lock it in a horizontal position; When the gas spring 4 retracts, it drives the bearing layer 2 to flip downwards so that its bottom is placed on the upper surface of the positioning column 11. By tightening the bolt 32 between the locking rod 3 and the bearing layer 2, the locking rod 3 and the bearing layer 2 are fixed in a fixed state, ensuring that the bearing layer 2 is horizontally distributed, which makes it easy to place the workpiece 6 on the bearing layer 2.

[0031] S5: Repeat steps S3 and S4 to complete the workpiece 6 placement process of each bearing layer 2 layer by layer until the workpiece 6 is loaded in the contour groove of the top bearing layer 2. S6: Flip the top plate 7 downwards, and the top plate 7 forms an upper end pressing limit on the top workpiece 6, completing the material rack's storage of the workpiece 6.

[0032] Example 1: In this embodiment, the front suspension lower control arm workpiece 6 is loaded onto the material rack according to the above steps. Please refer to [link / reference] for details. Figure 4-6 As shown, symmetrically distributed first support seats 21 are fixedly installed on the bearing layer 2. The first support seats 21 are distributed along the length direction of the bearing layer 2. The first support seats 21 are installed at an angle on the bearing layer 2, and the two sets of symmetrically arranged first support seats 21 are in the shape of an "eight".

[0033] A first connecting rod 23 is fixedly installed between the symmetrically arranged first support seats 21 on the bearing layer 2. The first connecting rod 23 is symmetrically arranged and fixedly installed on the bottom surface of the bearing layer 2. A second support seat 24 is fixedly installed between the symmetrically arranged first connecting rods 23. The second support seat 24 is inclinedly installed on the first connecting rod 23, and the inclination angle of the second support seat 24 is the same as that of the first support seat 21 on one side.

[0034] Both the first support base 21 and the second support base 24 are provided with multiple uniformly arranged first contouring grooves 22, which are U-shaped or V-shaped; the front suspension lower swing arm workpiece 6 is distributed in a V-shape in the first contouring grooves 22.

[0035] The first support seat 21 and the second support seat 24 work together to form a three-point support limit for the front suspension lower swing arm workpiece 6, which can provide multi-point support and positioning for the arm body, bushing and ball pin parts respectively, effectively preventing the workpiece 6 from shifting or bumping.

[0036] To prevent vertical displacement of the front-suspension lower swing arm workpiece 6 on the bearing layer 2, a second connecting rod 25 symmetrically arranged is fixedly installed at the bottom of the bearing layer 2, and a first pressure rod 26 arranged along the length of the bearing layer 2 is fixed between the symmetrically arranged second connecting rods 25.

[0037] When the lower workpiece 6 is loaded onto the bearing layer 2, the upper bearing layer 2 flips downward, and the first pressure bar 26 at its bottom can constrain the lower workpiece 6 from the vertical direction, effectively reducing the risk of workpiece 6 shifting or being bumped.

[0038] Example 2: In this embodiment, the front upper control arm workpiece 6 is loaded onto the material rack according to the above steps. Please refer to [link / reference] for details. Figure 7-9 As shown: Several evenly arranged third positioning seats 213 are fixedly installed on the top of the bearing layer 2; multiple sets of first positioning seats 211 and second positioning seats 212 are symmetrically installed on the bottom surface of the bearing layer 2, and the two are also evenly distributed; the first positioning seats 211 are located on both sides of the long side of the bearing layer 2, the second positioning seats 212 are arranged in the middle of the bearing layer 2, and the third positioning seats 213 are located in the middle of the first positioning seats 211 and the second positioning seats 212; the width of the second positioning seat 212 is twice that of the first positioning seat 211.

[0039] The first positioning seat 211 has several evenly distributed third contour grooves 215 on one side facing the second positioning seat 212 and on both sides of the second positioning seat 212; the third positioning seat 213 has several evenly distributed second contour grooves 214.

[0040] The second contour groove 214 adopts a U-shaped or V-shaped structure, and the third contour groove 215 is arc-shaped. The second contour groove 214 and the third contour groove 215 provide multi-point support and positioning for the arm body, bushing and connecting hole of the front upper swing arm, effectively preventing the workpiece 6 from moving or bumping. The workpiece 6 of the front upper swing arm is distributed in an inverted V shape in the second contour groove 214 and the third contour groove 215.

[0041] To prevent vertical displacement of the front suspension upper swing arm workpiece 6 on the bearing layer 2, a second pressure rod 216 is installed on the side wall of the bearing layer 2 along the length of the bearing layer 2. The second pressure rod 216 is located below the third positioning seat 213.

[0042] When the lower workpiece 6 is loaded onto the bearing layer 2, the upper bearing layer 2 flips downward, and its second pressure bar 216 can constrain the lower workpiece 6 from the vertical direction, effectively reducing the risk of workpiece 6 shifting or being bumped.

[0043] Working principle: First, pull out the pin 5 to release the top plate 7 from the top lock of the frame; then loosen the bolt 32 connecting the locking rod 3 and the top plate 7, and the locking rod 3 will release the constraint on the top plate 7, allowing the top plate 7 to rotate freely.

[0044] The gas spring 4 extends to generate thrust, causing the unlocked top plate 7 to flip upwards, completely opening the upper space of the material rack and reserving operating space for the flipping of the middle load-bearing layer 2 and the loading of the workpiece 6.

[0045] After the top plate 7 is flipped upward, the bolts 32 on the frame abut against the vertical section of the limiting groove 31, thereby limiting the maximum flipping angle of the top plate 7 and preventing the top plate 7 from over-flipping and colliding or interfering with the load-bearing layer 2 below to be flipped.

[0046] Loosen the bolts 32 between each load-bearing layer 2 and the locking rod 3 in sequence to release the constraint of the locking rod 3, so that the corresponding load-bearing layer 2 can rotate.

[0047] The gas spring 4 extends and outputs power, causing the corresponding load-bearing layer 2 to flip upward, opening up the internal loading space layer by layer until the bottom load-bearing layer 2 is fully exposed and enters the loading state.

[0048] After the single-layer workpiece 6 is loaded, the gas spring 4 retracts, pulling the upper load-bearing layer 2 downwards and allowing the bottom of the load-bearing layer 2 to sit stably on the top surface of the positioning column 11. Then, the bolts 32 between the locking rod 3 and the load-bearing layer 2 are tightened to rigidly fix the two, thereby mechanically locking the load-bearing layer 2, preventing it from shaking or tipping over, and ensuring that the load-bearing layer 2 is always in a stable horizontal state, which facilitates the placement of the workpiece 6.

[0049] Starting from the bottommost support layer 2, after placing the workpiece 6, lower and lock the upper support layer 2; repeat the process of "loading workpiece 6 and resetting and locking support layer 2" upwards to complete the loading of all layers of workpiece 6 from bottom to top; after all support layers 2 are loaded, the gas spring 4 retracts and drives the top plate 7 to flip downwards and reset, and the top plate 7 re-establishes a top limit for the top workpiece 6, which, together with the support seats and pressure rods of each layer, forms an all-directional three-dimensional limit; this facilitates the transportation of workpiece 6, etc.; after loading is completed, release the caster brakes, and transfer the rack to the next process by pushing, pulling or using a forklift. The protective columns at the four corners can prevent the workpiece 6 from being squeezed when the rack is stacked.

[0050] This invention achieves convenient loading and unloading, safe protection and efficient transfer of the front suspension arm assembly through the combination design of the flip-out bearing layer 2 and the contour support base. It solves the problems of poor protection, difficult loading and unloading and high operation intensity of existing tooling. It is suitable for the batch turnover, storage and transportation of the front suspension lower arm assembly.

[0051] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A method for packaging a front suspension control arm assembly for automobiles, characterized in that: Includes the following steps: S1: Flip the unlocked top plate (7) upwards to fully open the middle bearing layer (2); S2: Flip the middle support layer (2) after unlocking from top to bottom until the bottom support layer (2) is in a state of waiting to be loaded; S3: Load the workpiece (6) onto the contour groove of the bearing layer (2) to limit the position of the workpiece (6); S4: Flip the unloaded upper layer (2) downwards to lock it in a horizontal position; S5: Repeat steps S3 and S4 to complete the workpiece (6) placement process of each bearing layer (2) layer by layer until the workpiece (6) is loaded in the contour groove of the uppermost bearing layer (2).

2. The method for packaging a front suspension control arm assembly for automobiles according to claim 1, characterized in that: Before step S1, remove the pin (5) above the top plate (7) to release the locking connection between the top plate (7) and the frame body (1).

3. The method for packaging a front suspension control arm assembly for automobiles according to claim 1, characterized in that: In steps S1 and S2, by loosening the bolt (32), the locking rod (3) releases the constraint on the top plate (7) or the bearing layer (2); the locking rod (3) is in a rotating state with respect to the top plate (7) or the bearing layer (2).

4. The method for packaging a front suspension control arm assembly for automobiles according to claim 1, characterized in that: In steps S1 and S2, the gas spring (4) extends to drive the top plate (7) or the supporting layer (2) to flip upward.

5. The method for packaging a front suspension control arm assembly for automobiles according to claim 4, characterized in that: When the top plate (7) or the load-bearing layer (2) is flipped upward, the bolts on the frame body (1) are located in the vertical section limiting groove (31) of the locking rod (3) to limit the flipping angle of the top plate (7) or the load-bearing layer (2).

6. The method for packaging a front suspension control arm assembly for automobiles according to claim 1, characterized in that: In step S3, a first contour groove (22) is provided on the bearing layer (2) of the front suspension lower swing arm workpiece (6), and the first contour groove (22) is distributed on the first support seat (21) and the second support seat (24); the front suspension lower swing arm workpiece (6) is distributed in a V-shape in the first contour groove (22).

7. The method for packaging a front suspension control arm assembly for automobiles according to claim 1, characterized in that: In step S3, a second contour groove (214) and a third contour groove (215) are provided on the bearing layer (2) of the front upper swing arm workpiece (6). The second contour groove (214) and the third contour groove (215) are distributed on the first positioning seat (211) and the second positioning seat (212). The front upper swing arm workpiece (6) is distributed in an inverted V shape in the second contour groove (214) and the third contour groove (215).

8. The method for packaging a front suspension control arm assembly for automobiles according to claim 1, characterized in that: In step S4, the gas spring (4) retracts, driving the bearing layer (2) to flip downwards, so that the bottom of the bearing layer (2) is placed on the upper surface of the positioning column (11), and the bearing layer (2) is in a horizontal state.

9. The method for packaging a front suspension control arm assembly for automobiles according to claim 1, characterized in that: In step S4, the locking rod (3) and the bearing layer (2) are fixed by tightening the bolt (32) between the locking rod (3) and the bearing layer (2).

10. A method for packaging a front suspension control arm assembly for automobiles according to claim 1, characterized in that: After step S5, the top plate (7) is flipped downwards, and the top plate (7) forms an upper end pressing limit on the top workpiece (6), thus completing the storage of the workpiece (6) by the material rack.

Images