Suspension subassembly and final assembly assembly device

Abstract

The application discloses a suspension subassembly and general assembly device, which comprises a subassembly mechanism and a lifting and general assembly mechanism for driving the subassembly mechanism to lift; the subassembly mechanism comprises a base, a first tooling plate and a second tooling plate, the first tooling plate and the second tooling plate are arranged on the base in a front-rear direction, and the first tooling plate and the second tooling plate are both provided with a position-adjustable auxiliary frame positioning and supporting assembly, an auxiliary frame supporting assembly and an electric drive assembly positioning and supporting block. The application can meet the requirements of multi-model replacement assembly in the research and development stage and the after-sales stage, and can improve the efficiency and assembly quality.

Description

Technical Field

[0001] This invention relates to vehicle assembly, and more specifically to a suspension sub-assembly and final assembly device. Background Technology

[0002] With the rapid development of new energy vehicles, the importance of the rear suspension in the overall vehicle structure has increased. Increased vehicle load, rear-mounted drive systems often in multi-functional configurations, and the increased complexity and weight of the rear suspension have led to a significant increase in replacement and verification needs during the R&D phase, and a substantial increase in replacement business during the after-sales phase.

[0003] The existing replacement and assembly process in the R&D and after-sales stages involves first assembling the suspension components, and then using spring clips to attach the compressed coil springs and rear suspension together with the vehicle body. This results in excessively long assembly times and high manufacturing costs. Furthermore, existing coil spring clips are mostly derived from those used in gasoline-powered vehicles, making it difficult to guarantee their quality and strength, increasing the risk of coil spring detachment. To address the issues of long assembly times and high manufacturing costs in replacement, tooling is typically designed to ensure the quality of the rear suspension's sub-assembly and final assembly. However, the current manufacturing cycle for rear suspension sub-assembly and final assembly tooling is long, expensive, and lacks universality. Consequently, the corresponding sub-assembly and final assembly tooling is only manufactured for small-batch trial production or after the rear axle has reached a relatively stable condition. This fails to meet the needs of both R&D and after-sales fields for multi-platform and multi-model universality, rapid rear suspension assembly and alignment, and simple operation. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a suspension sub-assembly and final assembly device that can meet the multi-model replacement assembly needs in the R&D stage and after-sales stage, and can improve efficiency and assembly quality.

[0005] A suspension sub-assembly and final assembly device according to the present invention includes a sub-assembly mechanism and a lifting and assembly mechanism for driving the sub-assembly mechanism to rise and fall; the sub-assembly mechanism includes a base, a first tooling plate and a second tooling plate, the first tooling plate and the second tooling plate being spaced apart on the base in a front-rear direction, and each of the first tooling plate and the second tooling plate being provided with a position-adjustable subframe positioning support assembly, a subframe support assembly and an electric drive assembly positioning support block.

[0006] Furthermore, the first tooling plate is provided with a first mounting area, and the second tooling plate is provided with a second mounting area. The first mounting area is provided with a plurality of first mounting holes arranged in a matrix, and the second mounting area is provided with a plurality of second mounting holes arranged in a matrix. The electric drive assembly positioning support block can be connected to some of the first mounting holes or to some of the second mounting holes.

[0007] Furthermore, the first tooling plate is provided with two third mounting areas located on the left and right sides of the first mounting area, respectively, and the second tooling plate is provided with two fourth mounting areas located on the left and right sides of the second mounting area, respectively; each of the two third mounting areas is provided with a first slide rail with a length along the left-right direction and a first slider disposed on the first slide rail, at least three of the first slide rails are equally spaced and parallel in the front-back direction, and the first slider slides in cooperation with two adjacent first slide rails; each of the two fourth mounting areas is provided with a second slide rail with a length along the left-right direction and a second slider disposed on the second slide rail, at least three of the second slide rails are equally spaced and parallel in the front-back direction, and the second slider slides in cooperation with two adjacent second slide rails; the subframe positioning support assembly can be connected to the first slider or the second slider.

[0008] Furthermore, the first tooling plate is provided with two fifth mounting areas located behind the two third mounting areas, and the second tooling plate is provided with two sixth mounting areas located in front of the two fourth mounting areas. Each of the two fifth mounting areas is provided with a third slide rail extending in the left-right direction and a third slider mounted on the third slide rail. Two third slide rails are spaced apart in the front-back direction, and the third slider simultaneously slides with both third slide rails. Each of the two sixth mounting areas is provided with a fourth slide rail extending in the left-right direction and a fourth slider mounted on the fourth slide rail. Two fourth slide rails are spaced apart in the front-back direction, and the fourth slider simultaneously slides with both fourth slide rails. The subframe support assembly can be connected to either the third slider or the fourth slider.

[0009] Furthermore, the disassembly mechanism also includes a guide rail assembly for adjusting the relative position of the first tooling plate and the second tooling plate. The guide rail assembly includes a plurality of fifth guide rails spaced apart on the base in the left-right direction. The length of the plurality of fifth guide rails is in the front-back direction. The first tooling plate and the second tooling plate are respectively connected to each of the fifth guide rails through fifth sliders. Each of the fifth sliders is provided with a limit bolt, and each of the fifth guide rails is provided with a limit stop at its end.

[0010] Furthermore, the assembly mechanism also includes two rear brake system top blocks respectively disposed on the left and right sides of the base. Each of the two rear brake system top blocks includes a top block bracket, a brake disc and dustproof pad support soft pad, and a rear saddle support top block soft pad. The base is provided with a plurality of third mounting holes arranged in a matrix. The top block bracket is connected to some of the third mounting holes. The brake disc and dustproof pad support soft pad and the rear saddle support top block soft pad are all disposed on the top block bracket.

[0011] Furthermore, the subframe positioning support assembly includes a positioning support pin, a support pin, and a positioning pin tilting base arranged sequentially from top to bottom, and the positioning pin tilting base is provided with a first bolt through hole;

[0012] The subframe support assembly of the first tooling plate includes a first support block base and a first support block disposed on the first support block base. The first support block base is provided with a second bolt through hole, and the first support block is provided with a third bolt through hole. The subframe support assembly of the second tooling plate includes a second support block base and a second support block disposed on the second support block base. The second support block base is provided with a fourth bolt through hole, and the second support block is provided with a support bayonet.

[0013] The electric drive assembly positioning support block includes a third support block base and a third support block disposed on the third support block base. The third support block base is connected to the third support block base by a locking bolt, and a fifth bolt through hole is provided on the third support block base.

[0014] Furthermore, the lifting assembly mechanism includes a lower lifting platform, a lifting mechanism, and an upper lifting platform. The lifting mechanism is disposed between the lower lifting platform and the upper lifting platform. An array of embedded ball bearings is arranged on the upper lifting platform. Limiting stops are provided around the perimeter of the upper lifting platform. The base is placed on the embedded ball bearings so that it can move on the upper lifting platform in the front-back or left-right directions.

[0015] Furthermore, the lifting and assembly mechanism also includes two assembly lugs and two assembly locks. The two assembly lugs are respectively located on the left and right sides of the lower lifting platform. The lower ends of the two assembly locks are respectively connected to the two assembly lugs, and the upper ends of the two assembly locks can be connected to the process holes of the rear crossbeam of the vehicle body.

[0016] Furthermore, it also includes a transfer mechanism, which includes a caster wheel located on the lower side of the lifting platform and a trolley handle located on the rear side of the lifting platform.

[0017] The beneficial effects of this invention are as follows: This invention performs the sub-assembly of the rear suspension on the sub-assembly mechanism. The adjustable positions of the subframe positioning support component, the subframe support component, and the electric drive assembly positioning support block enable the sub-assembly mechanism to be applicable to rear suspensions of different platforms and different models. The lifting and assembly mechanism enables the sub-assembly mechanism to drive the rear suspension to rise and approach the vehicle body for assembly. This effectively solves the problem of no available equipment for the disassembly and assembly of rear suspensions of multiple platforms and multiple models in the R&D and after-sales fields. It can meet the multi-model replacement and assembly needs in the R&D and after-sales stages, and can improve efficiency and assembly quality. Attached Figure Description

[0018] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration:

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the dispensing mechanism of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the first tooling plate of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the second tooling plate of the present invention;

[0023] Figure 5 This is a schematic diagram of the subframe positioning support assembly of the present invention;

[0024] Figure 6 This is a schematic diagram of the subframe support assembly of the first tooling plate of the present invention;

[0025] Figure 7 This is a schematic diagram of the subframe support assembly of the second tooling plate of the present invention;

[0026] Figure 8 This is a schematic diagram of the electric drive assembly positioning support block of the present invention;

[0027] Figure 9 This is a schematic diagram of the structure of the top block of the rear braking system of the present invention;

[0028] Figure 10 This is a schematic diagram of the structure of the rear braking system top block and the rear suspension adapted to each other according to the present invention;

[0029] Figure 11 This is a schematic diagram of the guide rail assembly of the present invention;

[0030] Figure 12 This is a schematic diagram of the lifting and loading mechanism and the transfer mechanism of the present invention.

[0031] The labels in the attached diagram are as follows: 1—Disassembly mechanism, 11—Base, 12—First tooling plate, 121—First mounting area, 122—Third mounting area, 123—Fifth mounting area, 124—First mounting hole, 125—First slide rail, 126—First slider, 127—Third slide rail, 128—Third slider, 13—Second tooling plate, 131—Second mounting area, 132—Fourth mounting area, 133—Sixth mounting area, 134—Second mounting hole, 135—Second slide rail, 136—Second slider, 137—Fourth slide rail, 138—Fourth slider, 14—Subframe positioning support assembly, 141—Positioning support pin, 142—Support pin, 143—First bolt through hole, 144—Positioning pin tilting base, 15—Subframe support assembly, 151—First support block base, 152—Second bolt through hole, 153—First support block. 154—Third bolt through hole; 155—Second support block base; 156—Second support block; 157—Fourth bolt through hole; 158—Support bayonet; 16—Electric drive assembly positioning support block; 161—Third support block base; 162—Fifth bolt through hole; 163—Third support block; 164—Locking bolt; 17—Rear brake system top block; 171—Top block bracket; 172—Brake disc and dustproof pad support pad; 173 —Rear ram's horn top support block pad, 18—Guide rail assembly, 181—Fifth guide rail, 182—Fifth slider, 183—Limit bolt, 184—Limit stop block, 2—Lifting assembly mechanism, 21—Lifting upper platform, 211—Embedded ball bearing, 212—Limit stop edge, 22—Lifting mechanism, 23—Assembly zipper, 24—Lifting lower platform, 25—Assembly lug, 3—Transfer mechanism, 31—Fuma wheel, 32—Trolley handle. Detailed Implementation

[0032] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0033] like Figures 1-12 As shown, a suspension sub-assembly and final assembly device in this embodiment includes a sub-assembly mechanism 1 and a lifting and assembly mechanism 2 for driving the sub-assembly mechanism 1 to rise and fall. The sub-assembly mechanism 1 includes a base 11, a first tooling plate 12 and a second tooling plate 13. The first tooling plate 12 and the second tooling plate 13 are spaced apart on the base 11 in the front-rear direction. The first tooling plate 12 and the second tooling plate 13 are each provided with a subframe positioning support assembly 14, a subframe support assembly 15 and an electric drive assembly positioning support block 16 that are adjustable in position.

[0034] The rear suspension is disassembled on the sub-assembly mechanism 1. The positions of the subframe positioning support component 14, the subframe support component 15, and the electric drive assembly positioning support block 16 are adjustable, making the sub-assembly mechanism 1 suitable for rear suspensions of different platforms and models. The lifting and assembly mechanism 2 enables the sub-assembly mechanism 1 to drive the rear suspension to rise and approach the vehicle body for assembly. This effectively solves the problem of no available equipment for the disassembly and assembly of rear suspensions of multiple platforms and models in the R&D and after-sales fields. It can meet the multi-model replacement and assembly needs in the R&D and after-sales stages, and can improve efficiency and assembly quality.

[0035] In this embodiment, the first tooling plate 12 is provided with a first mounting area 121, and the second tooling plate 13 is provided with a second mounting area 131. The first mounting area 121 is provided with a plurality of first mounting holes 124 arranged in a matrix, and the second mounting area 131 is provided with a plurality of second mounting holes 134 arranged in a matrix. The electric drive assembly positioning support block 16 can be connected to some of the first mounting holes 124 or to some of the second mounting holes 134.

[0036] The number of electric drive assembly positioning support blocks 16 can be three. One electric drive assembly positioning support block 16 is installed on the first tooling plate 12, and two electric drive assembly positioning support blocks 16 are installed at intervals on the second tooling plate 13. The first mounting hole 124 and the second mounting hole 134 provide a variety of installation positions. By selecting different first mounting holes 124 or second mounting holes 134, the position of each electric drive assembly positioning support block 16 in the front-rear direction and the left-right direction can be adjusted to adapt to the rear suspension of different vehicle models.

[0037] In this embodiment, the first tooling plate 12 is provided with two third mounting areas 122 located on the left and right sides of the first mounting area 121, and the second tooling plate 13 is provided with two fourth mounting areas 132 located on the left and right sides of the second mounting area 131. Each of the two third mounting areas 122 is provided with a first slide rail 125 with a length along the left and right direction and a first slider 126 provided on the first slide rail 125. At least three first slide rails 125 are equally spaced and parallel in the front and back direction, and the first slider 126 slides in cooperation with two adjacent first slide rails 125. Each of the two fourth mounting areas 132 is provided with a second slide rail 135 with a length along the left and right direction and a second slider 136 provided on the second slide rail 135. At least three second slide rails 135 are equally spaced and parallel in the front and back direction, and the second slider 136 slides in cooperation with two adjacent second slide rails 135. The subframe positioning support assembly 14 can be connected to the first slider 126 or the second slider 136.

[0038] Each third mounting area 122 and each fourth mounting area 132 is provided with a subframe positioning support assembly 14, for a total of four. There are three first slide rails 125 and three second slide rails 135, thus allowing three different mounting positions for the first slider 126 and the second slider 136 in the front-rear direction, enabling three-level switching of the mounting position of each subframe positioning support assembly 14 in the front-rear direction. After the first slider 126 slides to the desired position in the left-right direction, it is fixed to the position of the first slide rail 125 by bolts or other fasteners. The second slider 136 is fixed in the same way, thereby achieving adjustment of the mounting position of each subframe positioning support assembly 14 in the left-right direction.

[0039] In this embodiment, the first tooling plate 12 is provided with two fifth mounting areas 123 located behind the two third mounting areas 122, and the second tooling plate 13 is provided with two sixth mounting areas 133 located in front of the two fourth mounting areas 132. Each of the two fifth mounting areas 123 is provided with a third slide rail 127 with a length along the left-right direction and a third slider 128 provided on the third slide rail 127. Two third slide rails 127 are spaced apart in the front-back direction, and the third slider 128 slides in cooperation with both third slide rails 127. Each of the two sixth mounting areas 133 is provided with a fourth slide rail 137 with a length along the left-right direction and a fourth slider 138 provided on the fourth slide rail 137. Two fourth slide rails 137 are spaced apart in the front-back direction, and the fourth slider 138 slides in cooperation with both fourth slide rails 137. The subframe support assembly 15 can be connected to the third slider 128 or the fourth slider 138.

[0040] Each fifth mounting area 123 is provided with a subframe support assembly 15, and each sixth mounting area 133 is provided with a subframe support assembly 15. After the third slider 128 slides to the desired position in the left-right direction, the relative position of the third slider 128 and the third slide rail 127 is fixed by bolts or other fasteners. The fourth slider 138 is fixed in the same way, thereby realizing the adjustment of the mounting position of each subframe support assembly 15 in the left-right direction.

[0041] In this embodiment, the disassembly mechanism 1 further includes a guide rail assembly 18 for adjusting the relative position of the first tooling plate 12 and the second tooling plate 13. The guide rail assembly 18 includes a plurality of fifth guide rails 181 spaced apart on the base 11 in the left-right direction. The length of the plurality of fifth guide rails 181 is in the front-back direction. The first tooling plate 12 and the second tooling plate 13 are respectively connected to each of the fifth guide rails 181 through fifth sliders 182. Each of the fifth sliders 182 is provided with a limit bolt 183, and each of the fifth guide rails 181 is provided with a limit stop 184 at its end.

[0042] The number of fifth guide rails 181 can be three. Each fifth guide rail 181 is provided with a fifth slider 182 for mounting the first tooling plate 12 and a fifth slider 182 for mounting the second tooling plate 13. The first tooling plate 12 is located in front of the second tooling plate 13. After the first tooling plate 12 and the second tooling plate 13 are slid to the desired positions by the fifth slider 182, the relative positions of the fifth slider 182 and the fifth guide rail 181 are fixed by the limiting bolt 183, thereby realizing the adjustment of the mounting positions of the first tooling plate 12 and the second tooling plate 13 in the front-back direction.

[0043] In this embodiment, the disassembly mechanism 1 further includes two rear brake system top blocks 17 respectively disposed on the left and right sides of the base 11. Each of the two rear brake system top blocks 17 includes a top block bracket 171, a brake disc and dustproof pad support soft pad 172, and a rear saddle support top block soft pad 173. The base 11 is provided with a plurality of third mounting holes arranged in a matrix. The top block bracket 171 is connected to some of the third mounting holes. The brake disc and dustproof pad support soft pad 172 and the rear saddle support top block soft pad 173 are all disposed on the top block bracket 171.

[0044] The brake disc and dust pad support pad 172 is used to support the separate assembly of the brake, and the rear steering knuckle support pad 173 is used to support the rear brake system assembly. During assembly, both the brake disc and dust pad support pad 172 and the rear steering knuckle support pad 173 provide support force, supporting the lifting coil spring and facilitating the assembly of the rear suspension. Both the brake disc and dust pad support pad 172 and the rear steering knuckle support pad 173 are replaceable pads. The width of the rear brake system support block 17 in the longitudinal direction is not limited.

[0045] In this embodiment, the subframe positioning support assembly 14 includes a positioning support pin 141, a support pin 142, and a positioning pin tilting base 144 arranged sequentially from top to bottom. The positioning pin tilting base 144 is provided with a first bolt through hole 143. The first bolt through hole 143 is used to connect to the first slider 126 or the second slider 136 by bolts or other fasteners.

[0046] The subframe support assembly 15 of the first tooling plate 12 includes a first support block base 151 and a first support block 153 disposed on the first support block base 151. The first support block base 151 is provided with a second bolt through hole 152, and the first support block 153 is provided with a third bolt through hole 154. The subframe support assembly 15 of the second tooling plate 13 includes a second support block base 155 and a second support block 156 disposed on the second support block base 155. The second support block base 155 is provided with a fourth bolt through hole 157, and the second support block 156 is provided with a support bayonet 158. The second bolt through hole 152 is used to connect with the third slider 128 on the first tooling plate 12 by bolts or other fasteners, and the fourth bolt through hole 157 is used to connect with the fourth slider 138 on the second tooling plate 13 by bolts or other fasteners. The third bolt through hole 154 on the first support block 153 is used to connect to the first support block base 151 by bolts or other fasteners, and can be used to replace the first support block 153 with different shapes according to the needs of different vehicle models. The second support block 156 also has a detachable structure.

[0047] The electric drive assembly positioning support block 16 includes a third support block base 161 and a third support block 163 disposed on the third support block base 161. The third support block base 161 is connected to the third support block base 161 by a locking bolt 164. The third support block base 161 is provided with a fifth bolt through hole 162, which is used to connect to the first mounting hole 124 or the second mounting hole 134 by a bolt or other fasteners.

[0048] In this embodiment, the lifting assembly mechanism 2 includes a lower lifting platform 24, a lifting mechanism 22, and an upper lifting platform 21. The lifting mechanism 22 is disposed between the lower lifting platform 24 and the upper lifting platform 21. An array of embedded ball bearings 211 is arranged on the upper lifting platform 21. Limiting edges 212 are provided around the perimeter of the upper lifting platform 21. The base 11 is placed on the embedded ball bearings 211 so that it can move along the front-back or left-right directions on the upper lifting platform 21.

[0049] The area enclosed by the limiting edge 212 of the lifting platform 21 is larger than that of the base 11. At the same time, the lifting platform 21 is provided with an array of embedded ball bearings 211, so the base 11 can move along the front-back or left-right direction on the lifting platform 21 through the embedded ball bearings 211.

[0050] In this embodiment, the lifting assembly mechanism 2 further includes two assembly lugs 25 and two assembly locks 23. The two assembly lugs 25 are respectively disposed on the left and right sides of the lower lifting platform 24. The lower ends of the two assembly locks 23 are respectively connected to the two assembly lugs 25, and the upper ends of the two assembly locks 23 can be connected to the process holes of the rear crossbeam of the vehicle body.

[0051] After the two ends of the assembly zipper 23 are connected to the assembly lugs 25 and the process holes of the rear crossbeam of the vehicle body, the distance between the lifting platform 24 and the vehicle body is limited. This prevents the vehicle body from moving upward when the lifting mechanism 22 lifts the lifting platform 24 and the rear suspension, thus ensuring that the coil springs between the rear suspension and the vehicle body can be compressed. If the assembly zipper 23 is not used to limit the movement during the assembly of the rear suspension, the vehicle body will rise along with the rear suspension during the lifting process, and the coil springs cannot be compressed.

[0052] In this embodiment, a transfer mechanism 3 is also included. The transfer mechanism 3 includes a caster wheel 31 disposed on the lower side of the lifting platform 24 and a trolley handle 32 disposed on the rear side of the lifting platform 24. The caster wheel 31 and the trolley handle 32 enable the device to move between different workstations.

[0053] In summary, the suspension sub-assembly and final assembly device in this embodiment includes the following steps during use:

[0054] S1. Rear suspension assembly, this step specifically includes the following steps:

[0055] S101. Based on the three-coordinate dimensions of the rear suspension of the vehicle to be assembled, firstly, the relative positions of the first tooling plate 12 and the second tooling plate 13 in the front-rear direction are adjusted by each fifth guide rail 181 and each fifth slider 182. This operation can realize the overall front-rear position adjustment of the subframe positioning support assembly 14, the subframe support assembly 15 and the electric drive assembly positioning support block 16. Subsequently, based on the three-coordinate dimensions of the rear suspension of the vehicle to be assembled, each subframe positioning support component 14 is connected to the first slider 126 or the second slider 136 via bolts or other fasteners. Since there are three first slide rails 125 and three second slide rails 135, the first slider 126 and the second slider 136 have three installation positions to choose from in the front-rear direction, thereby realizing three-level switching of the installation position of each subframe positioning support component 14 in the front-rear direction. After the first slider 126 slides to the desired position in the left-right direction, the position of the first slider 126 and the first slide rail 125 is fixed by bolts or other fasteners. The second slider 136 is similarly fixed, thereby realizing the adjustment of the installation position of each subframe positioning support component 14 in the left-right direction.

[0056] S102. Based on the three-coordinate dimensions of the rear suspension of the vehicle to be assembled, different types of subframe support components 15 are respectively assembled onto the first tooling plate 12 or the second tooling plate 13. Specifically, the first support block base 151 is connected to the third slider 128 on the first tooling plate 12 by bolts or other fasteners, and the second support block base 155 is connected to the fourth slider 138 on the second tooling plate 13 by bolts or other fasteners. After the third slider 128 slides to the desired position in the left-right direction, the relative position of the third slider 128 and the third slide rail 127 is fixed by bolts or other fasteners. The fourth slider 138 is fixed in the same way, thereby realizing the adjustment of the installation position of each subframe support component 15 in the left-right direction. Different shapes of the first support block 153 and the second support block 156 can also be replaced according to the needs of different vehicle models.

[0057] S103. Based on the three-coordinate dimensions of the rear suspension of the vehicle to be assembled, each electric drive assembly positioning support block 16 is respectively assembled onto the first tooling plate 12 or the second tooling plate 13. Specifically, the number of electric drive assembly positioning support blocks 16 can be three. One electric drive assembly positioning support block 16 is installed on the first tooling plate 12, and two electric drive assembly positioning support blocks 16 are installed at intervals on the second tooling plate 13. The electric drive assembly positioning support blocks 16 are connected to the first mounting hole 124 or the second mounting hole 134 by bolts or other fasteners. The first mounting hole 124 and the second mounting hole 134 provide multiple installation positions. By selecting different first mounting holes 124 or second mounting holes 134, the position of each electric drive assembly positioning support block 16 in the front-rear direction and the left-right direction can be adjusted to adapt to the rear suspension of different vehicle models.

[0058] S104. Based on the three-coordinate dimensions of the rear suspension of the vehicle to be assembled, the two rear brake system top blocks 17 are respectively assembled to the left and right sides of the base 11. The base 11 is provided with multiple third mounting holes arranged in a matrix. The top block bracket 171 is connected to some of the third mounting holes, thereby realizing the position adjustment of the top block bracket 171 in the front-rear direction and the left-right direction, that is, realizing the position adjustment of the rear brake system top blocks 17 in the front-rear direction and the left-right direction. In addition, the brake disc and dust cover support pad 172 and the rear steering knuckle support top block pad 173 can be replaced according to the rear brake system outer envelope of different rear suspensions.

[0059] S105. After adjusting the position of each component of the sub-assembly mechanism 1, assemble the rear suspension in the sub-assembly mechanism 1 to complete the sub-assembly of the rear suspension.

[0060] S2. Assembly of the rear suspension. This step specifically includes the following steps:

[0061] S201. The suspension sub-assembly and final assembly device and the rear suspension are pushed to the rear of the vehicle body through the transfer mechanism 3. The rear suspension is lifted to a certain height through the lifting assembly mechanism 2. The upper end of the assembly cable 23 is installed in the process hole of the rear crossbeam of the vehicle body, and the lower end is connected to the assembly lug 25.

[0062] S202. Continue to use the lifting assembly mechanism 2 to lift the rear suspension. During the lifting process, pay attention to the alignment of the front mounting point of the rear subframe of the rear suspension with the double-headed studs on the vehicle body. The base 11 moves along the front-back or left-right direction on the lifting platform 21 through the embedded ball bearings 211 to achieve the alignment of the front mounting point of the rear suspension subframe with the double-headed studs on the vehicle body. After the alignment is completed, the coil spring is located between the rear suspension and the vehicle body.

[0063] S203. Continue to lift the rear suspension, so that the assembly cable 23 is continuously tightened. When the lifting mechanism 22 drives the lower platform 24 and the rear suspension to rise, the assembly cable 23 can overcome the elastic force of the coil spring to prevent the vehicle body from moving upward, ensuring that the coil spring between the rear suspension and the vehicle body is compressed. After the rear suspension is aligned with the hole, tighten the bolts connecting it to the vehicle body, remove the suspension sub-assembly and final assembly device, and complete the assembly of the suspension.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A suspension sub-assembly and final assembly device, characterized in that: It includes a sub-assembly mechanism (1) and a lifting and assembly mechanism (2) for driving the sub-assembly mechanism (1) to rise and fall; the sub-assembly mechanism (1) includes a base (11), a first tooling plate (12) and a second tooling plate (13), the first tooling plate (12) and the second tooling plate (13) are spaced apart on the base (11) in the front-rear direction, and the first tooling plate (12) and the second tooling plate (13) are each provided with a subframe positioning support assembly (14), a subframe support assembly (15) and an electric drive assembly positioning support block (16) that are adjustable in position. The first tooling plate (12) is provided with a first mounting area (121), and the second tooling plate (13) is provided with a second mounting area (131). The first mounting area (121) is provided with a plurality of first mounting holes (124) arranged in a matrix, and the second mounting area (131) is provided with a plurality of second mounting holes (134) arranged in a matrix. The electric drive assembly positioning support block (16) can be connected to some of the first mounting holes (124) or to some of the second mounting holes (134). The first tooling plate (12) is provided with two third mounting areas (122) located on the left and right sides of the first mounting area (121), and the second tooling plate (13) is provided with two fourth mounting areas (132) located on the left and right sides of the second mounting area (131). Each of the two third mounting areas (122) is provided with a first slide rail (125) with a length along the left and right direction and a first slider (126) provided on the first slide rail (125). At least three first slide rails (125) are arranged at equal intervals and in parallel along the front and back direction. The slider (126) slides in cooperation with two adjacent first slide rails (125); each of the two fourth mounting areas (132) is provided with a second slide rail (135) with a length along the left-right direction and a second slider (136) provided on the second slide rail (135). At least three second slide rails (135) are arranged at equal intervals and in parallel along the front-back direction. The second slider (136) slides in cooperation with two adjacent second slide rails (135); the subframe positioning support assembly (14) can be connected to the first slider (126) or the second slider (136).

2. The suspension sub-assembly and final assembly device according to claim 1, characterized in that: The first tooling plate (12) is provided with two fifth mounting areas (123) located behind the two third mounting areas (122), and the second tooling plate (13) is provided with two sixth mounting areas (133) located in front of the two fourth mounting areas (132); each of the two fifth mounting areas (123) is provided with a third slide rail (127) with a length along the left-right direction and a third slider (128) provided on the third slide rail (127). There are two third slide rails (127) spaced apart along the front-back direction. The third slider (128) is simultaneously slidably engaged with the two third slide rails (127); each of the two sixth mounting areas (133) is provided with a fourth slide rail (137) with a length along the left-right direction and a fourth slider (138) provided on the fourth slide rail (137). There are two fourth slide rails (137) spaced apart along the front-back direction, and the fourth slider (138) is simultaneously slidably engaged with the two fourth slide rails (137); the subframe support assembly (15) can be connected to the third slider (128) or the fourth slider (138).

3. The suspension sub-assembly and final assembly device according to claim 1, characterized in that: The disassembly mechanism (1) further includes a guide rail assembly (18) for adjusting the relative position of the first tooling plate (12) and the second tooling plate (13). The guide rail assembly (18) includes a plurality of fifth guide rails (181) spaced apart on the base (11) in the left-right direction. The length of the plurality of fifth guide rails (181) is along the front-back direction. The first tooling plate (12) and the second tooling plate (13) are respectively connected to each of the fifth guide rails (181) through fifth sliders (182). Each of the fifth sliders (182) is provided with a limit bolt (183). Each of the fifth guide rails (181) is provided with a limit stop (184) at its end.

4. The suspension sub-assembly and final assembly device according to claim 1, characterized in that: The disassembly mechanism (1) further includes two rear brake system top blocks (17) respectively disposed on the left and right sides of the base (11). Each of the two rear brake system top blocks (17) includes a top block bracket (171), a brake disc and dustproof pad support soft pad (172), and a rear saddle support top block soft pad (173). The base (11) is provided with a plurality of third mounting holes arranged in a matrix. The top block bracket (171) is connected to some of the third mounting holes. The brake disc and dustproof pad support soft pad (172) and the rear saddle support top block soft pad (173) are all disposed on the top block bracket (171).

5. The suspension sub-assembly and final assembly device according to claim 1, characterized in that: The subframe positioning support assembly (14) includes a positioning support pin (141), a support pin (142), and a positioning pin tilting base (144) arranged sequentially from top to bottom. The positioning pin tilting base (144) is provided with a first bolt through hole (143). The subframe support assembly (15) of the first tooling plate (12) includes a first support block base (151) and a first support block (153) disposed on the first support block base (151). The first support block base (151) is provided with a second bolt through hole (152), and the first support block (153) is provided with a third bolt through hole (154). The subframe support assembly (15) of the second tooling plate (13) includes a second support block base (155) and a second support block (156) disposed on the second support block base (155). The second support block base (155) is provided with a fourth bolt through hole (157), and the second support block (156) is provided with a support bayonet (158). The electric drive assembly positioning support block (16) includes a third support block base (161) and a third support block (163) disposed on the third support block base (161). The third support block base (161) is connected to the third support block base (161) by a locking bolt (164). The third support block base (161) is provided with a fifth bolt through hole (162).

6. The suspension sub-assembly and final assembly device according to claim 1, characterized in that: The lifting assembly mechanism (2) includes a lower lifting platform (24), a lifting mechanism (22), and an upper lifting platform (21). The lifting mechanism (22) is located between the lower lifting platform (24) and the upper lifting platform (21). An array of embedded ball bearings (211) is arranged on the upper lifting platform (21). Limiting stops (212) are provided around the perimeter of the upper lifting platform (21). The base (11) is placed on the embedded ball bearings (211) so that it can move along the front-back or left-right direction on the upper lifting platform (21).

7. The suspension sub-assembly and final assembly device according to claim 6, characterized in that: The lifting assembly mechanism (2) also includes two assembly lugs (25) and two assembly zippers (23). The two assembly lugs (25) are respectively located on the left and right sides of the lower lifting platform (24). The lower ends of the two assembly zippers (23) are respectively connected to the two assembly lugs (25), and the upper ends of the two assembly zippers (23) can be connected to the process holes of the rear crossbeam of the vehicle body.

8. The suspension sub-assembly and final assembly device according to claim 7, characterized in that: It also includes a transfer mechanism (3), which includes a trolley wheel (31) located on the lower side of the lifting platform (24) and a trolley handle (32) located on the rear side of the lifting platform (24).

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