Automobile rear suspension subassembly and assembly online device and use method thereof

Abstract

The application discloses an automobile rear suspension disassembling and assembling online device and a use method thereof, and has the following characteristics: a disassembling table frame; an automobile rear suspension disassembling and assembling table installed on the disassembling table frame, which can install an automobile rear suspension; and an automobile rear coil spring pressing unit used in cooperation with the automobile rear suspension disassembling and assembling table, which can install an automobile rear coil spring, quickly and accurately position a vehicle body mounting hole, quickly and safely realize rear coil spring pressing, and quickly and accurately position and assemble a rear subframe and a rear trailing arm mounting support, and has the advantages of simple structure and convenient operation.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of automobile installation, and particularly relates to an automobile rear suspension sub-assembly and assembly online device and a use method thereof. BACKGROUND

[0002] In the process of implementing the present application, the inventors found that the prior art at least has the following problems:

[0003] In the process of trial production of a sample vehicle, the rear suspension assembly needs to be sub-assembled and assembled online. When the rear suspension assembly is manually installed on a lifting machine, the rear subframe and the body mounting hole are difficult to position, and the left and right rear trailing arm mounting brackets and the body mounting hole are difficult to position. Due to the tension of the rear coil spring, the length of the rear coil spring exceeds the gap between the rear subframe, the rear trailing arm mounting bracket and the body, so that the rear subframe and the rear trailing arm mounting bracket cannot be installed. The space arrangement of the rear coil spring mounting part of the automobile rear suspension assembly is compact, and the conventional tool cannot be locked and installed outside the rear coil spring. The rear coil spring bears the compression force during the installation process, and it is easy to cause rebound accidents and safety hazards.

[0004] CN111730554A discloses an automobile rear suspension device sub-assembly table, which comprises a workbench, a tool drawer is arranged at the bottom of the workbench, a bolt hole is formed in the workbench, grooves are fixedly arranged around the workbench, a baffle is fixedly arranged on the workbench, a fixed clamping block is arranged on the workbench through a support rod, the support rod comprises an upper support rod and a lower support rod, the upper support rod and the lower support rod are connected through a threaded rod and a threaded sleeve, and clamping plates are connected to the inner walls on the two sides of the fixed clamping block. However, the above technical problems cannot be solved. SUMMARY

[0005] The technical problem to be solved by the present application is to provide an automobile rear suspension sub-assembly and assembly online device and a use method thereof, which can realize the universality of the same platform rear suspension assembly, quickly and accurately position the two positioning pins on the device and the body positioning hole, press the rear coil spring through the rear coil spring pressing unit, adjust the gap between the rear subframe, the rear trailing arm mounting bracket and the body, so that the rear subframe and the rear trailing arm mounting bracket can be quickly and accurately installed, and the problems of difficult positioning of the rear subframe and the body mounting hole, difficult positioning of the rear trailing arm mounting bracket and the body mounting hole, and difficult pressing of the rear coil spring are solved, thereby greatly improving the efficiency of the rear suspension assembly assembly.

[0006] To solve the above technical problems, the technical scheme adopted by the present application is as follows: an automobile rear suspension sub-assembly and assembly online device has:

[0007] A sub-assembly table frame;

[0008] The automobile rear suspension sub-assembly and assembly table is installed on the sub-assembly table frame, and can be used for installing an automobile rear suspension.

[0009] The automobile rear helical spring press assembly unit is used in cooperation with the automobile rear suspension sub-assembly and assembly table, and can be used for installing an automobile rear helical spring.

[0010] The automobile rear suspension sub-assembly and assembly table has:

[0011] The sub-assembly table seat is installed on the sub-assembly table frame.

[0012] The rear sub-frame support pin can support a rear sub-frame.

[0013] The rear lower control arm support pin can support a rear lower control arm.

[0014] The rear sub-frame positioning pin can position a rear sub-frame.

[0015] The rear shock absorber positioning unit can position a rear shock absorber.

[0016] The rear brake support pin can support a rear brake.

[0017] The rear trailing arm assembly support pin can support a rear trailing arm assembly.

[0018] The rear trailing arm mounting bracket positioning pin can position a rear trailing arm mounting bracket.

[0019] The vehicle body positioning pin assembly can position a vehicle body.

[0020] The rear axle support pin can support a rear axle.

[0021] The rear lower control arm support pin includes a first rear lower control arm support pin and a second rear lower control arm support pin; and the rear axle support pin includes a first rear axle support pin and a second rear axle support pin.

[0022] The rear sub-frame support pin includes a universal positioning support pin seat, a universal positioning support pin shaft is arranged on the universal positioning support pin seat, a rear sub-frame support frame is arranged on the universal positioning support pin shaft, and the rear sub-frame support frame can support a rear sub-frame.

[0023] The first rear lower control arm support pin and the second rear lower control arm support pin include a universal positioning support pin seat, a universal positioning support pin shaft is arranged on the universal positioning support pin seat, a first rear lower control arm support frame and a second rear lower control arm support frame are respectively arranged on the universal positioning support pin shafts of the first rear lower control arm support pin and the second rear lower control arm support pin.

[0024] The rear subframe positioning pin comprises a universal positioning support pin seat, a universal positioning support pin shaft is arranged on the universal positioning support pin seat, and a rear subframe positioning pin shaft is arranged on the universal positioning support pin shaft.

[0025] The rear shock absorber positioning unit comprises a rear shock absorber positioning support pin seat, a rear shock absorber positioning support pin shaft is arranged on the rear shock absorber positioning support pin seat, and a rear shock absorber positioning support arm is arranged on the rear shock absorber positioning support pin shaft.

[0026] The rear brake support pin comprises a universal positioning support pin seat, a universal positioning support pin shaft is arranged on the universal positioning support pin seat, and a rear brake support frame is arranged on the universal positioning support pin shaft; the rear trailing arm assembly support unit comprises two groups of universal positioning support pin seats and universal positioning support pin shafts, and a rear trailing arm support frame and a rear trailing arm mounting bracket positioning pin are respectively arranged on the two universal positioning support pin shafts.

[0027] The automobile rear coil spring press-fitting unit comprises a lengthened sleeve, an adjusting nut is arranged in the lengthened sleeve, and a variable shaft center connecting threaded rod is threadedly connected with the adjusting nut; an upper spring connecting plate is arranged at an upper end of the variable shaft center connecting threaded rod, and a lower spring connecting plate is connected with the adjusting nut through a planar thrust roller bearing, and the automobile rear coil spring can be mounted between the upper spring connecting plate and the lower spring connecting plate.

[0028] The automobile rear suspension disassembly and assembly online device uses the following method: when the suspension is disassembled, first, the rear subframe is placed on the rear subframe positioning pin and the support pin, then the rear lower control arm, the rear brake, and the rear trailing arm assembly are respectively placed on the first rear lower control arm support pin, the second rear lower control arm support pin, the rear brake support pin, the rear trailing arm mounting bracket positioning pin, and the rear trailing arm support pin for disassembly; the rear shock absorber is placed on the rear shock absorber positioning unit for disassembly, and the rear shock absorber positioning support pin is removed after the rear shock absorber positioning disassembly is completed; when the rear suspension is assembled online, the body positioning pin first contacts the body, the relative position of the body positioning pin and the body on the horizontal plane is fixed, the rear coil spring is placed on the rear lower control arm, the rear coil spring is press-fitted using the rear coil spring press-fitting unit, the rear subframe, the rear trailing arm mounting bracket, and the rear shock absorber are mounted on the body using bolts, the adjusting nut of the rear coil spring press-fitting unit is loosened, and the rear coil spring press-fitting unit is removed.

[0029] One of the above technical solutions has the following advantages or beneficial effects: the same platform rear suspension assembly can be realized, the two positioning pins on the device and the body positioning hole are quickly and accurately positioned, the rear helical spring is pressed by the rear helical spring pressing unit, the gap between the rear subframe, the rear trailing arm mounting bracket and the body is adjusted, so that the rear subframe and the rear trailing arm mounting bracket can be quickly and accurately installed, the problems of difficult positioning of the rear subframe and the body mounting hole, difficult positioning of the rear trailing arm mounting bracket and the body mounting hole, and difficult pressing of the rear helical spring are solved, and the efficiency of the rear suspension assembly assembly is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 The structure schematic view of the automobile rear suspension sub-assembly and assembly online device provided in the embodiment of the application is shown in the figure.

[0031] Figure 2 The structure schematic view of the automobile rear suspension sub-assembly and assembly table is shown in the figure.

[0032] Figure 3 The structure schematic view of the rear subframe support pin is shown in the figure.

[0033] Figure 4 The structure schematic view of the first rear lower control arm support pin is shown in the figure.

[0034] Figure 5 The structure schematic view of the rear subframe positioning pin is shown in the figure.

[0035] Figure 6 The structure schematic view of the rear shock absorber positioning unit is shown in the figure.

[0036] Figure 7 The structure schematic view of the second rear lower control arm support pin is shown in the figure.

[0037] Figure 8 The structure schematic view of the rear brake support pin is shown in the figure.

[0038] Figure 9 The structure schematic view of the rear trailing arm assembly support unit is shown in the figure.

[0039] Figure 10 The structure schematic view of the body positioning pin is shown in the figure.

[0040] Figure 11 The structure schematic view of the rear axle support pin unit is shown in the figure.

[0041] Figure 12 The structure schematic view of the automobile rear helical spring pressing unit is shown in the figure.

[0042] The marks in the above figures are:

[0043] 1, sub-assembly table frame, 2, automobile rear suspension sub-assembly and assembly table, 3, automobile rear helical spring pressing unit,

[0044] 4, subframe support pin, 6, first rear lower control arm support pin, 7, rear subframe positioning pin, 8, rear shock absorber positioning unit, 9, second rear lower control arm support pin, 10, rear brake support pin, 11, rear trailing arm assembly support pin, 12, rear trailing arm mounting bracket positioning pin, 13, body positioning pin assembly, 14, first rear axle support pin, 15, second rear axle support pin, 16, auxiliary support pin,

[0045] 17, rear subframe support bracket, 18, universal positioning support pin shaft, 19, universal positioning support pin seat, 20, first rear lower control arm support bracket, 21, rear subframe positioning pin shaft,

[0046] 22, rear shock absorber positioning support arm, 23, rear shock absorber positioning support shaft, 24, rear shock absorber positioning support pin seat,

[0047] 25, second rear lower control arm support bracket, 26, rear brake support bracket, 27, rear trailing arm support bracket, 28, rear trailing arm mounting bracket positioning pin,

[0048] 29, body matching pin, 30, guide seat, 31, locking pin, 32, return spring, 33, sleeve, 34, spring adjusting seat;

[0049] 35, second rear axle support bracket, 36, first rear axle support bracket;

[0050] 37, spring upper connecting plate, 38, variable shaft center connecting threaded rod, 39, angular contact ball bearing, 40, spring lower connecting plate, 41, planar thrust roller bearing, 42, adjusting nut, 43, lengthened sleeve. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0052] Embodiment one

[0053] The automobile rear suspension subassembly and assembly online device is generally a frame structure, and the automobile rear suspension subassembly and assembly platform is arranged on the frame and used in cooperation with the automobile rear coil spring press-fitting unit. The manufacturing process is as follows: 1, drilling threaded holes in the steel plate plane; 2, installing the positioning pins, support pins and the like at corresponding positions through bolts; 3, cooperating with the automobile rear coil spring press-fitting unit; to realize the function of automobile rear suspension subassembly and assembly online and body assembly.

[0054] Figure 2 is a rear suspension disassembly and assembly table, on the disassembly seat 4, install the rear subframe support pin 5, used to hold the rear subframe, with two rear subframe positioning pins 7, together to constrain the rear subframe in the appropriate position; install two first rear lower control arm support pins 6, two second rear lower control arm support pins 9, together to hold the left and right rear lower control arm; install two rear brake support pins 10, hold the left and right rear brake; install two rear shock absorber positioning units 8, constrain the rear shock absorber in the appropriate position; install two rear trailing arm support pins 11, two rear trailing arm mounting bracket positioning pins 12, together to hold the rear trailing arm and constrain the rear trailing arm mounting bracket mounting angle and position; install two body positioning pin assemblies 13, used to position the relative position of the disassembly table and the body in the horizontal plane; install the first rear axle support pin 14, the second rear axle support pin 15, together to hold the rear axle assembly.

[0055] Figure 3 is a rear subframe support pin, composed of a rear subframe support frame 17, a universal positioning support pin shaft 18, and a universal positioning support pin seat 19. The rear subframe support frame 17 is placed in the appropriate position of the disassembly table seat, and together with two rear subframe positioning pin shafts 21 to position and support the rear subframe assembly in the appropriate position.

[0056] Figure 4 is a first rear lower control arm support pin, composed of a first rear lower control arm support frame 20, a universal positioning support pin shaft 18, and a universal positioning support pin seat 19. Two first rear lower control arm support frames 20 are placed in the appropriate position of the disassembly table seat, and together with two second rear lower control arm support frames 25 to support the left and right rear lower control arms in the appropriate position.

[0057] Figure 5 is a rear subframe positioning pin, composed of a rear subframe positioning pin shaft 21, a universal positioning support pin shaft 18, and a universal positioning support pin seat 19. The universal positioning support pin seat 19 is installed on the corresponding position of the disassembly table seat, the universal positioning support pin shaft 18 is placed in the universal positioning support pin seat 19, and the rear subframe positioning pin shaft 21 is placed in the universal positioning support pin shaft 18. The universal positioning support pin shaft 18 and the universal positioning support pin seat 19 adopt a taper surface and a shaft hole cooperation, with a positioning accuracy generally within ±0.2mm, limiting the axial movement and horizontal shaking of the universal positioning support pin shaft 18. Two rear subframe positioning pin shafts 21, one of which is a cylindrical pin shaft with a chamfer, and the other is a rhombic cylindrical pin shaft with a chamfer.

[0058] Figure 6is a rear shock absorber positioning unit, which is composed of a rear shock absorber positioning support arm 22, a rear shock absorber positioning support shaft 23, and a rear shock absorber positioning support pin seat 24. Two rear shock absorber positioning support pin seats 24 are installed on the corresponding positions of the sub-assembly pedestal, two grooves are formed on the support pin seat 24, the rear shock absorber positioning support shaft 23 is arranged on the support pin seat 24, the support shaft 23 has a stop pin which cooperates with the groove on the support pin seat 24, and the rear shock absorber positioning support arm 22 is arranged on the support shaft 23 and used for restraining and positioning the rear shock absorber at a proper position.

[0059] Figure 7 is a second rear lower control arm support pin, which is composed of a second rear lower control arm support frame 25, a universal positioning support pin shaft 18, and a universal positioning support pin seat 19. Two universal positioning support pin seats 19 are installed on the corresponding positions of the sub-assembly pedestal, two universal positioning support pin shafts 18 are arranged in the universal positioning support pin seats 19, and two second rear lower control arm support frames 25 are arranged in the universal positioning support pin shafts 18, which together with the two first rear lower control arm support frames 20 support the left and right rear lower control arms at a proper position.

[0060] Figure 8 is a rear brake support pin, which is composed of a rear brake support frame 26, a universal positioning support pin shaft 18, and a universal positioning support pin seat 19. Two universal positioning support pin seats 19 are installed on the corresponding positions of the sub-assembly pedestal, two universal positioning support pin shafts 18 are arranged in the universal positioning support pin seats 19, and two rear brake support frames 26 are arranged in the universal positioning support pin shafts 18, which are used for supporting the left and right rear brakes at a proper position.

[0061] Figure 9 is a rear trailing arm assembly support unit, which is composed of a rear trailing arm support frame 27, a rear trailing arm mounting bracket positioning pin 28, a universal positioning support pin shaft 18, and a universal positioning support pin seat 19. Four universal positioning support pin seats 19 are installed on the corresponding positions of the sub-assembly pedestal, four universal positioning support pin shafts 18 are arranged in the universal positioning support pin seats 19, and two rear trailing arm assembly support frames 27 and rear trailing arm mounting bracket positioning pins 28 are arranged in the universal positioning support pin shafts 18, which jointly act to lift the rear trailing arm and constrain the mounting angle and position of the rear trailing arm mounting bracket.

[0062] Figure 10is a body positioning pin schematic diagram, which is composed of a body matching pin 29, a guide seat 30, a locking pin 31, a return spring 32, a sleeve 33, and a spring adjusting seat 34. The long hole on the guide seat 30 can adjust the position of the guide seat on the disassembly seat 4 according to the distance between the body positioning holes. The guide seat 30 and the sleeve 33 are fixed on the disassembly seat 4 by fastening bolts. The spring adjusting seat 34 is placed in the sleeve 33, the body matching pin 29 is placed in the guide seat 30 and can slide axially freely, the bottom end of the body matching pin 29 is provided with an anti-slip flange to limit the position of the guide seat 30, the upper end of the return spring 32 is in contact with the bottom of the body matching pin, and the lower end is in contact with the spring adjusting seat 34. When the locking pin 31 is unlocked from the guide seat 30, the body matching pin 29 is in the highest position.

[0063] Figure 11 is a rear axle support pin unit, which is composed of a first rear axle support frame 36, a second rear axle support frame 35, a universal positioning support pin shaft 18, and a universal positioning support pin seat 19. Two universal positioning support pin seats 19 are installed on the corresponding positions of the disassembly seat, two universal positioning support pin shafts 18 are placed in the universal positioning support pin seats 19, and the first rear axle support frame 36 and the second rear axle support frame 35 are respectively placed in the universal positioning support pin shafts 18, which jointly act to lift the installation position of the rear axle.

[0064] Figure 12 is an automobile rear coil spring press-fitting unit, which is composed of a spring upper connecting plate 37, a variable shaft center connecting threaded rod 38, an angular contact ball bearing 39, a spring lower connecting plate 40, a planar thrust roller bearing 41, an adjusting nut 42, and an elongated sleeve 43. When the automobile rear suspension is assembled, the spring upper connecting plate 37 is placed on the rear coil spring, the upper hexagonal flange of the variable shaft center connecting threaded rod 38 is connected with the inner hexagonal recess of the spring upper connecting plate 37, which can prevent the variable shaft center connecting threaded rod 38 from rotating, the shaft center of the variable shaft center connecting threaded rod 38 can be changed during the compression of the rear coil spring, which is beneficial to the safe and reliable compression of the rear coil spring, the angular contact ball bearing 39 is placed in the center hole of the rear lower control arm rear coil spring lower cushion, the spring lower connecting plate 40 is placed on the lower side of the rear lower control arm, the planar thrust roller bearing 41 is placed on the lower side of the spring lower connecting plate 40, the adjusting nut 42 is placed on the lower side of the planar thrust roller bearing 41, and the elongated sleeve 43 is placed on the lower side of the adjusting nut 42. When the elongated sleeve 43 is fastened by using a pneumatic tool, the elongated sleeve 43 drives the adjusting nut 42 to rotate, the adjusting nut 42 acts the fastening force on the spring lower connecting plate 40 through the planar thrust roller bearing 41, so that the rear coil spring is compressed and shortened.

[0065] The automobile rear suspension is assembled by first placing the rear subframe on the rear subframe positioning pin 7 and the support pin 5, and then placing the rear lower control arm, rear brake, and rear trailing arm assembly on the first rear lower control arm support pin 6, the second rear lower control arm support pin 9, the rear brake support pin 10, the rear trailing arm mounting bracket positioning pin 12, and the support pin 11, respectively. The rear shock absorber is placed on the rear shock absorber positioning unit 8, and the rear shock absorber positioning support shaft 23 is removed after the rear shock absorber positioning and assembly are completed. When the automobile rear suspension is assembled, the body positioning pin 13 first contacts the body, fixing the relative position of the assembly table and the body in the horizontal plane. The rear coil spring is placed on the rear lower control arm, and the rear coil spring press-fitting unit 3 is used to press-fit the rear coil spring. By adjusting the Z-direction position of the assembly table or the body, the rear trailing arm mounting bracket mounting hole, the rear subframe mounting hole, and the body mounting hole are coaxial and have a small gap, which facilitates the assembly of the rear subframe, the rear trailing arm mounting bracket, and the rear shock absorber with the body. The rear subframe, the rear trailing arm mounting bracket, and the rear shock absorber are mounted on the body using bolts. The rear coil spring press-fitting unit adjustment nut 42 is slowly loosened, and the rear coil spring press-fitting unit 3 is removed. The two body positioning pins 13 of the assembly table use two positioning pin shafts and pin shaft step surfaces to accurately position the assembly table relative to the body, which facilitates accurate and fast assembly. In the same platform vehicle, the body positioning pin position, the subframe position, and the rear trailing arm mounting bracket position remain unchanged.

[0066] After adopting the above structure, the problems of difficult positioning of the rear subframe and the body mounting hole, difficult positioning of the left and right rear trailing arm mounting brackets and the body mounting hole, and difficult press-fitting of the rear coil spring are solved. The positioning accuracy of the device is generally within ±0.2mm, which is higher than the ±1mm of the traditional pull-down pin type clamp. The device has high universality, and the support frame, the bottom plate, the universal positioning support pin shaft, and the universal positioning support pin seat can be used as universal parts. The automobile rear coil spring press-fitting unit is universal.

[0067] Example Two

[0068] Reference Figures 1 to 12The application discloses a kind of automobile rear suspension subassembly and assembly online device, with: subassembly table frame;Automobile rear suspension subassembly and assembly table is installed on subassembly table frame, automobile rear suspension subassembly and assembly table can install automobile rear suspension;Automobile rear coil spring press-pack unit is used with automobile rear suspension subassembly and assembly table, and automobile rear coil spring press-pack unit can install automobile rear coil spring.The automobile rear suspension subassembly and assembly table has: subassembly table seat, installed on subassembly table frame;Rear subframe support pin, can support rear subframe;Rear lower control arm support pin, can support rear lower control arm;Rear subframe positioning pin, can position rear subframe;Rear shock absorber positioning unit, can position rear shock absorber;Rear brake support pin, can support rear brake;Rear tow arm assembly support pin, can support rear tow arm assembly;Rear tow arm mounting bracket positioning pin, can position rear tow arm mounting bracket;With body positioning pin assembly, can position vehicle body;Rear axle support pin, can support rear axle.It can realize the same platform rear suspension assembly general, through the two positioning pins on the device and the body positioning hole fast, accurate positioning, through rear coil spring press-pack unit makes rear coil spring press-pack, adjusts the gap between rear subframe, rear tow arm mounting bracket and vehicle body, so that rear subframe, rear tow arm mounting bracket can be quickly and accurately installed, solve the rear subframe and vehicle body mounting hole positioning difficulty, rear tow arm mounting bracket and vehicle body mounting hole positioning difficulty, rear coil spring difficult press-pack problem, greatly improve the efficiency of rear suspension assembly assembly.

[0069] Rear lower control arm support pin includes first rear lower control arm support pin and second rear lower control arm support pin;Rear axle support pin includes first rear axle support pin and second rear axle support pin.

[0070] Rear subframe support pin includes universal positioning support pin seat, universal positioning support pin seat is equipped with universal positioning support pin shaft, universal positioning support pin shaft is equipped with rear subframe support frame, and rear subframe support frame can support rear subframe.

[0071] First rear lower control arm support pin and second rear lower control arm support pin include universal positioning support pin seat, universal positioning support pin seat is equipped with universal positioning support pin shaft, and universal positioning support pin shaft of first rear lower control arm support pin and second rear lower control arm support pin is equipped with first rear lower control arm support frame and second rear lower control arm support frame respectively.

[0072] Rear subframe positioning pin includes universal positioning support pin seat, universal positioning support pin seat is equipped with universal positioning support pin shaft, and universal positioning support pin shaft is equipped with rear subframe positioning pin shaft.

[0073] Rear shock absorber positioning unit has rear shock absorber positioning support pin seat, rear shock absorber positioning support pin seat is equipped with rear shock absorber positioning support shaft, and rear shock absorber positioning support shaft is equipped with rear shock absorber positioning support arm.

[0074] The rear brake support pin comprises a universal positioning support pin seat, a universal positioning support pin shaft arranged on the universal positioning support pin seat, and a rear brake support frame arranged on the universal positioning support pin shaft.

[0075] The automobile rear coil spring press fitting unit has an elongated sleeve, an adjusting nut arranged in the elongated sleeve, and a variable shaft center connecting threaded rod threadedly connected with the adjusting nut.

[0076] The same platform rear suspension assembly can be realized, the two positioning pins on the device and the body positioning hole are quickly and accurately positioned, the rear coil spring is pressed by the rear coil spring press fitting unit, the gap between the rear subframe, the rear trailing arm mounting bracket and the body is adjusted, so that the rear subframe and the rear trailing arm mounting bracket can be quickly and accurately installed, and the problems of difficult positioning of the rear subframe and the body mounting hole, difficult positioning of the rear trailing arm mounting bracket and the body mounting hole, and difficult pressing of the rear coil spring are solved, and the efficiency of the rear suspension assembly assembly is greatly improved.

[0077] The body mounting hole can be quickly and accurately positioned, the rear coil spring is quickly and safely pressed, the rear subframe and the rear trailing arm mounting bracket are quickly and accurately positioned and assembled, and the device has the advantages of simple structure and convenient operation.

[0078] After the above structure is adopted, the problems of difficult positioning of the rear subframe and the body mounting hole, difficult positioning of the left and right rear trailing arm mounting brackets and the body mounting hole, and difficult pressing of the rear coil spring are solved; compared with the traditional pull-down pin type clamp with a positioning accuracy of generally ±1mm, the positioning accuracy of the device can generally reach within ±0.2mm; the device has high universality, the support frame structure, the bottom plate, the universal positioning support pin shaft and the universal positioning support pin seat can be used as universal parts, and the automobile rear coil spring press fitting unit is universal.

[0079] Embodiment three

[0080] The use method of the automobile rear suspension disassembly and assembly online device, when the rear suspension is disassembled, first, the rear subframe is placed on the rear subframe positioning pin and the supporting pin, then the rear lower control arm, the rear brake, and the rear trailing arm assembly are respectively placed on the first rear lower control arm supporting pin, the second rear lower control arm supporting pin, the rear brake supporting pin, the rear trailing arm mounting bracket positioning pin, and the rear trailing arm supporting pin for disassembly; the rear shock absorber is placed on the rear shock absorber positioning unit for disassembly, and the rear shock absorber positioning support shaft is removed after the rear shock absorber positioning disassembly is completed; when the rear suspension is assembled online, the body positioning pin first contacts the body, the relative position of the fixed disassembly table and the body on the horizontal plane is fixed, the rear coil spring is placed on the rear lower control arm, and the rear coil spring is pressed and assembled by using the rear coil spring pressing unit; the rear subframe, the rear trailing arm mounting bracket, and the rear shock absorber are mounted on the body by using bolts; the rear coil spring pressing unit adjusting nut is loosened, and the rear coil spring pressing unit is removed.

[0081] After the above scheme is adopted, the problems of difficult positioning of the rear subframe and the body mounting hole, difficult positioning of the left and right rear trailing arm mounting brackets and the body mounting hole, and difficult pressing of the rear coil spring are solved; compared with the traditional pull-down pin type clamp, the positioning accuracy of the device is generally within ±0.2 mm, which is higher than the positioning accuracy of ±1 mm of the traditional pull-down pin type clamp; the device has high universality, and the support frame, the bottom plate, the universal positioning support pin shaft, the universal positioning support pin seat, and the automobile rear coil spring pressing unit can be universal parts.

[0082] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0083] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connection", "fixing", "threading" and the like should be understood in a broad sense, for example, they can be fixed connection, or detachable connection, or integrated; they can be mechanical connection, or electrical connection; they can be directly connected, or indirectly connected through an intermediate medium; they can be the communication between two elements or the interaction relationship between two elements, unless otherwise explicitly limited, and the specific meaning of the above terms in the present application can be understood according to the specific circumstances by those skilled in the art.

[0084] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. An automobile rear suspension sub-assembly and final assembly line device, characterized by, Has: Subassembly table frame; Automobile rear suspension subassembly and assembly table is installed on the subassembly table frame, the automobile rear suspension subassembly and assembly table can install automobile rear suspension; Automobile rear coil spring press-in unit is used in cooperation with automobile rear suspension subassembly and assembly table, the automobile rear coil spring press-in unit can install automobile rear coil spring; The automobile rear coil spring press-in unit has an elongated sleeve, the elongated sleeve is provided with an adjusting nut, and a variable shaft center connecting threaded rod is threadedly connected with the adjusting nut; the upper end of the variable shaft center connecting threaded rod is provided with a spring upper connecting plate, and a spring lower connecting plate is connected with the adjusting nut through a plane thrust roller bearing; the automobile rear coil spring can be installed between the spring upper connecting plate and the spring lower connecting plate; When the automobile rear suspension is assembled, the spring upper connecting plate is placed on the rear coil spring, the upper hexagonal flange of the variable shaft center connecting threaded rod is connected with the inner hexagonal groove on the spring upper connecting plate, the variable shaft center connecting threaded rod is prevented from rotating, the shaft center of the variable shaft center connecting threaded rod can change during the compression of the rear coil spring, and the rear coil spring is compressed; the angular contact ball bearing is arranged in the center hole of the soft pad of the rear lower control arm, the spring lower connecting plate is arranged on the lower side of the rear lower control arm, the plane thrust roller bearing is arranged on the lower side of the spring lower connecting plate, the adjusting nut is arranged on the lower side of the plane thrust roller bearing, the elongated sleeve is arranged on the lower side of the adjusting nut, when the elongated sleeve is fastened by using a pneumatic tool, the elongated sleeve drives the adjusting nut to rotate, the adjusting nut acts on the spring lower connecting plate through the plane thrust roller bearing, and the rear coil spring is compressed and shortened.

2. The automobile rear suspension assembling and disassembling line device according to claim 1, wherein The automobile rear suspension subassembly and assembly table has: Subassembly table seat is installed on the subassembly table frame; Rear subframe support pin can support rear subframe; Rear lower control arm support pin can support rear lower control arm; Rear subframe positioning pin can position rear subframe; Rear shock absorber positioning unit can position rear shock absorber; Rear brake support pin can support rear brake; Rear trailing arm assembly support pin can support rear trailing arm assembly; Rear trailing arm mounting bracket positioning pin can position rear trailing arm mounting bracket; Matching vehicle body positioning pin assembly can position vehicle body; Rear axle support pin can support rear axle.

3. The automobile rear suspension assembling and disassembling line device according to claim 2, wherein The rear lower control arm support pin includes a first rear lower control arm support pin and a second rear lower control arm support pin; the rear axle support pin includes a first rear axle support pin and a second rear axle support pin.

4. The automobile rear suspension assembling and disassembling line device according to claim 3, wherein The rear subframe support pin includes a universal positioning support pin seat, the universal positioning support pin seat is provided with a universal positioning support pin shaft, and the universal positioning support pin shaft is provided with a rear subframe support frame capable of supporting the rear subframe.

5. The automobile rear suspension assembling and disassembling line device according to claim 4, wherein The first rear lower control arm support pin and the second rear lower control arm support pin include a universal positioning support pin seat, the universal positioning support pin seat is provided with a universal positioning support pin shaft, and the universal positioning support pin shaft of the first rear lower control arm support pin and the second rear lower control arm support pin is respectively provided with a first rear lower control arm support frame and a second rear lower control arm support frame.

6. The automobile rear suspension assembling and disassembling line device according to claim 5, wherein The rear subframe positioning pin comprises a universal positioning support pin seat, a universal positioning support pin shaft is arranged on the universal positioning support pin seat, and a rear subframe positioning pin shaft is arranged on the universal positioning support pin shaft.

7. The automobile rear suspension assembling and disassembling line device according to claim 6, wherein The rear shock absorber positioning unit has a rear shock absorber positioning support pin seat, a rear shock absorber positioning support shaft is arranged on the rear shock absorber positioning support pin seat, and a rear shock absorber positioning support arm is arranged on the rear shock absorber positioning support shaft.

8. The automobile rear suspension sub-assembly and integration on-line device according to claim 7, characterized in that, The rear brake support pin comprises a universal positioning support pin seat, a universal positioning support pin shaft is arranged on the universal positioning support pin seat, and a rear brake support frame is arranged on the universal positioning support pin shaft; the rear trailing arm assembly support unit comprises two groups of universal positioning support pin seats and universal positioning support pin shafts, and a rear trailing arm support frame and a rear trailing arm mounting bracket positioning pin are respectively arranged on the two universal positioning support pin shafts.

9. The method of claim 1-8, wherein the method further comprises: When the suspension is disassembled, first, the rear subframe is placed on the rear subframe positioning pin and the support pin, then the rear lower control arm, the rear brake, and the rear trailing arm assembly are respectively placed on the first rear lower control arm support pin, the second rear lower control arm support pin, the rear brake support pin, the rear trailing arm mounting bracket positioning pin, and the rear trailing arm support pin for disassembly; the rear shock absorber is placed on the rear shock absorber positioning unit for disassembly, and the rear shock absorber positioning support shaft is removed after the rear shock absorber positioning disassembly is completed; when the rear suspension is assembled, the body positioning pin first contacts the body, the relative position of the body and the disassembly table in the horizontal plane is fixed, the rear coil spring is placed on the rear lower control arm, the rear coil spring is pressed by using the rear coil spring pressing unit, the rear subframe, the rear trailing arm mounting bracket, and the rear shock absorber are mounted on the body by using bolts, the rear coil spring pressing unit adjusting nut is loosened, and the rear coil spring pressing unit is removed.

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