A multi-functional auxiliary device for air suspension assembly

Abstract

This invention belongs to the field of automotive suspension assembly technology, and particularly relates to a multi-functional auxiliary device for air suspension assembly. It includes a drive base, with a workbench assembly fixedly connected to its upper end. Two hydraulic rods are fixedly connected to the left and right sides of the upper part of the workbench assembly. The output ends of the four hydraulic rods and the workbench assembly share a fixing mechanism. A control panel is located on the front side of the middle of the workbench assembly, and an airtightness re-inspection component is mounted on the workbench assembly. This invention can clamp and position the front and rear subframes through the fixing mechanism, assist in the assembly of the shock absorber spring assembly through the support group, adjust the assembly height by raising and lowering the fixing mechanism through the hydraulic rods, and directly perform airtightness testing after assembly through the airtightness re-inspection component. This achieves integrated clamping and positioning, raising and lowering adjustment, rotation and flipping, support assistance, and airtightness re-inspection, eliminating the positioning accuracy loss problem caused by multi-station transfer.

Description

Technical Field

[0001] This invention belongs to the field of automotive suspension assembly technology, and in particular relates to a multi-functional auxiliary device for air suspension assembly. Background Technology

[0002] As a core component of modern automotive chassis technology, air suspension systems achieve an optimized balance between driving comfort and handling stability by electronically controlling the stiffness of air springs and the vehicle's height. In recent years, with the rapid development of the new energy vehicle industry, air suspension technology has been increasingly adopted in mid-to-high-end models, leading to sustained market demand and placing higher demands on the efficiency and quality of assembly processes.

[0003] In existing technologies, the assembly process of air suspension typically requires the following steps to be completed sequentially at multiple independent workstations: first, the guide arms of the front and rear subframes are clamped and fixed; then, the bushings are pre-assembled, the air springs are assembled, the stabilizer bars are installed, the sensors are calibrated, the air circuits are disassembled, and the wiring harnesses are connected. Finally, an air tightness test is performed at an independent workstation. After passing the test, the air suspension is transferred to the final assembly line for assembly with the vehicle body. However, the traditional process suffers from reduced positioning accuracy due to the multiple workstation transfers. The air suspension assembly needs to be repeatedly transferred between multiple independent workstations, and it needs to be repositioned and clamped after each transfer, inevitably resulting in the accumulation of positioning errors, which affects the final assembly accuracy and product quality. Shock absorber spring assemblies need to be assembled on both sides of the front and rear subframes. The traditional process requires disassembling, flipping, and re-clamping the entire subframe after completing the assembly on one side. This process is cumbersome and can easily damage the assembled parts. Therefore, we propose a multi-functional auxiliary device for air suspension assembly. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a multifunctional auxiliary device for air suspension assembly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multi-functional auxiliary device for air suspension assembly, comprising a drive base, a workbench assembly fixedly connected to the upper end of the drive base, two support groups provided on the upper front of the workbench assembly, a storage box provided on the upper front of the workbench assembly, two hydraulic rods fixedly connected to the left and right sides of the upper side of the workbench assembly, a fixing mechanism provided together with the output ends of the four hydraulic rods and the workbench assembly, a control panel provided on the front side of the middle of the workbench assembly, and a workbench assembly provided in the middle of the workbench assembly.

[0006] In the aforementioned multi-functional auxiliary device for air suspension assembly, the workbench assembly includes a workbench body. A slot is provided in the middle of the upper end of the workbench body. A front-to-back symmetrical fixing slot is provided on both the left and right sides of the bottom wall of the slot. A groove is provided on both the front and back sides of the middle of the upper end of the workbench body. A placement groove one is provided on the rear side of the right wall of the groove on the front side. A placement groove two is provided on the front side of the right wall of the groove on the front side. A rectangular groove symmetrical on the left and right sides is provided on the front side of the upper end of the workbench body. A limit groove one is provided on the front side of both the left and right ends of the workbench body.

[0007] In the above-mentioned multi-functional auxiliary device for air suspension assembly, the inner cavities of the four fixed slots are respectively fixedly connected to the four hydraulic rods, the inner cavity of the rectangular slot on the right side is sleeved and connected to the storage box, the bottom wall of the inner cavity of the first placement slot is fixedly connected to the airtightness re-inspection component, the inner cavity of the second placement slot is fixedly connected to the control panel, and the lower end of the workbench body is fixedly connected to the upper end of the drive base.

[0008] In the aforementioned multifunctional auxiliary device for air suspension assembly, both support groups include convex sliders. A sliding support plate is rotatably connected to the outer surfaces of the two convex sliders on opposite sides. A limiting groove is formed on the upper side of the adjacent ends of the two sliding support plates. A rotating rod is rotatably connected to the rear side of the inner cavity of each limiting groove. A hanging rod is fixedly connected to the upper side of the outer surface of each rotating rod. A retaining sleeve is fixedly connected to the upper part of the opposite side of the inner cavity of each limiting groove. A pull rod is fixedly connected to the upper end of each sliding support plate.

[0009] In the above-mentioned multi-functional auxiliary device for air suspension assembly, the two inner cavities of the ferrule are respectively adapted to the outer surfaces of the two hanging rods, and the outer surfaces of the convex slider and the sliding support plate on the same side are slidably connected to the inner cavity of the limiting groove.

[0010] In the aforementioned multi-functional auxiliary device for air suspension assembly, the fixing mechanism includes an I-shaped platform. A limiting groove three is formed in the middle of the upper part of the I-shaped platform. A symmetrical slide rail is fixedly connected to the bottom of the inner cavity of the limiting groove three. A semi-circular sleeve is fixedly connected to the upper side of the middle of the inner cavity of the limiting groove three. A double threaded rod one is rotatably connected to the lower side of the middle of the inner cavity of the limiting groove three. A servo motor two is fixedly connected to the right end of the double threaded rod one. A positioning group one is provided together on the right side of the outer surface of the two slide rails and the right side of the outer surface of the double threaded rod one. A positioning group two is provided together on the left side of the outer surface of the two slide rails and the left side of the outer surface of the double threaded rod one.

[0011] In the above-mentioned multi-functional auxiliary device for air suspension assembly, the lower end of the second servo motor is fixedly connected to the right side of the bottom wall of the inner cavity of the third limiting groove, the lower side of the outer surface of the I-shaped platform is slidably connected to the inner cavity of the slot, and the output ends of the four second hydraulic rods are fixedly connected to the lower end of the I-shaped platform.

[0012] In the aforementioned multi-functional auxiliary device for air suspension assembly, the positioning assembly includes a threaded slide, with a connecting plate fixedly connected to the upper end of the threaded slide. Sliding sleeves are fixedly connected to both the front and rear sides of the lower end of the connecting plate. A positioning shell is fixedly connected to the upper end of the connecting plate. A geared disc is rotatably connected to the center of the inner cavity of the positioning shell. A servo motor is fixedly connected to the front side of the inner cavity of the positioning shell. A gear is fixedly connected to the output end of the servo motor. The outer surface of the geared disc meshes with the outer surface of the gear. The upper end of the geared disc is fixedly connected to... A support platform is fixedly connected to the upper end of the support platform. Clamping platforms are fixedly connected to the upper front and rear sides of the upper end of the two clamping platforms. A sliding groove is opened on the right side of the upper horizontal direction of the two clamping platforms. A hydraulic rod is fixedly connected to the left side of the bottom wall of the inner cavity of the two sliding grooves. A clamping plate is fixedly connected to the output end of the two hydraulic rods. The lower side of the outer surface of the two clamping plates is slidably connected to the right side of the inner cavity of the two sliding grooves. The inner cavity of the two sliding sleeves is slidably connected to the right side of the outer surface of the two slide rails. The inner cavity of the threaded slide is engaged with the right side of the outer surface of the double threaded rod.

[0013] In the aforementioned multi-functional auxiliary device for air suspension assembly, the positioning group two includes a screw groove frame two. The inner cavity of the screw groove frame two is meshed with the left side of the outer surface of the double threaded rod one. A connecting plate two is fixedly connected to the upper end of the screw groove frame two. Sliding sleeves two are fixedly connected to both the front and rear sides of the lower end of the connecting plate two. The inner cavities of the two sliding sleeves two are slidably connected to the left side of the outer surface of the two slide rails, respectively. A positioning shell two is fixedly connected to the upper end of the connecting plate two. A gear plate two is rotatably connected to the middle of the inner cavity of the positioning shell two. A servo motor three is fixedly connected to the front side of the inner cavity of the positioning shell two. A gear two is fixedly connected to the output end of the servo motor three. The outer surface of the gear plate two meshes with the outer surface of the gear two. A support platform two is fixedly connected to the upper end of the gear plate two. An installation groove is opened in the middle of the upper end of the support platform two. A servo motor four is fixedly connected to the inner cavity of the installation groove. A through-hole bevel gear one is fixedly connected to the upper end of the servo motor four. A clamping group is provided on the upper end of the support platform two and the outer surface of the through-hole bevel gear one.

[0014] In the aforementioned multi-functional auxiliary device for air suspension assembly, the clamping assembly includes two sleeves and two rotating positioning frames. The lower ends of the two rotating positioning frames are fixedly connected to a support platform. A rotating shaft is rotatably connected to the inner cavity of the two rotating positioning frames. Through-hole conical teeth two are fixedly connected to the middle of the outer surface of the rotating shaft and to both ends of the rotating shaft through the sleeves on the same side. Through-hole conical teeth three are meshed with the outer surface of the through-hole conical teeth two on the front side. Double threaded rods two are fixedly connected to the inner cavity of the two through-hole conical teeth three. Clamps are rotatably connected to the left and right sides of the outer surface of the two double threaded rods two. Platform 2, the lower ends of the four servo motors are fixedly connected to the upper end of the support platform 2. Each of the four clamping platforms 2 has a sliding groove 2 on the side of its upper horizontal direction that is far apart from each other. Each of the four sliding groove 2 has a clamping plate 2 slidably connected to its inner cavity. The left and right sides of the outer surface of the double threaded rod 2 on the same side are respectively engaged with the inner cavities of the two clamping plates 2. The outer surface of the through hole bevel tooth 1 is engaged with the outer surface of the through hole bevel tooth 2 located in the middle. The left and right ends of the sleeve on the same side are respectively fixedly connected to the ends of the two servo motors 4 that are close to each other. The inner cavities of the two sleeves are respectively sleeved and connected to the middle of the outer surfaces of the two double threaded rods 2.

[0015] Compared with existing technologies, the advantages of a multi-functional auxiliary device for air suspension assembly are:

[0016] 1. By integrating a multi-functional workstation, clamping and positioning functions, lifting and adjustment functions, 180° rotation and flipping functions, support and auxiliary functions, and airtightness re-inspection functions are integrated into a single device, eliminating the positioning accuracy loss problem caused by multi-station transfer in traditional processes. The device moves as a whole on the track by driving the base. The distance between positioning group one and positioning group two is adjusted synchronously by the double threaded rod to adapt to the suspension size requirements of different vehicle models. The telescopic support group and hanging rod are quickly deployed to assist in the alignment and assembly of the shock absorber spring assembly. The hydraulic lifting mechanism drives the overall lifting and lowering of the fixing mechanism to achieve direct alignment and assembly with the vehicle body. Thus, the entire process of air suspension assembly, from subframe positioning, component assembly, 180° flipping, airtightness re-inspection to vehicle body assembly, is integrated, significantly improving assembly efficiency and assembly quality.

[0017] 2. By setting positioning group one and positioning group two, the gear plate is rotated by servo motor to achieve 180° flipping function. After the front subframe or rear subframe is assembled on one side, it can be directly rotated and flipped to the other side for assembly without disassembly. This avoids the repeated clamping and disassembly operations in traditional processes, greatly reducing labor intensity and the risk of component damage. The I-shaped design of the workbench body, together with the grooves on both sides, allows multiple operators to stand on both sides of the workbench at the same time to work together, improving assembly efficiency. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall structure of a multi-functional auxiliary device for air suspension assembly provided by the present invention;

[0019] Figure 2 This is another perspective schematic diagram of the overall structure of a multifunctional auxiliary device for air suspension assembly provided by the present invention;

[0020] Figure 3 This invention provides a multi-functional auxiliary device for air suspension assembly. Figure 3 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram of a workbench assembly for a multifunctional auxiliary device for air suspension assembly provided by the present invention;

[0022] Figure 5 This is a schematic diagram of the support group structure of a multifunctional auxiliary device for air suspension assembly provided by the present invention;

[0023] Figure 6 This is a schematic diagram of the fixing mechanism structure of a multifunctional auxiliary device for air suspension assembly provided by the present invention;

[0024] Figure 7 This is a schematic diagram of another perspective of the fixing mechanism of a multifunctional auxiliary device for air suspension assembly provided by the present invention;

[0025] Figure 8 This invention provides a multi-functional auxiliary device for air suspension assembly. Figure 7 Enlarged structural diagram at point B;

[0026] Figure 9 This is a schematic diagram of the positioning assembly of a multifunctional auxiliary device for air suspension assembly provided by the present invention;

[0027] Figure 10 This is a schematic diagram of the positioning group two of a multi-functional auxiliary device for air suspension assembly provided by the present invention;

[0028] Figure 11 This is a schematic diagram of the positioning assembly two of a multifunctional auxiliary device for air suspension assembly provided by the present invention from another perspective.

[0029] In the diagram: 1. Drive base; 2. Workbench assembly; 21. Workbench body; 22. Slot; 23. Limiting slot one; 24. Rectangular slot; 25. Placement slot one; 26. Placement slot two; 27. Fixing slot; 28. Groove; 3. Storage box; 4. Support assembly; 41. Convex slider; 42. Sliding support plate; 43. Limiting slot two; 44. Rotating rod; 45. Sleeve; 46. Pull rod; 47. Hanging rod; 5. Fixing mechanism; 51. I-shaped platform; 52. Positioning assembly one; 521. Threaded slide one; 5211. Connecting plate one; 5212. Servo motor one; 522. Sliding sleeve one; 523. Positioning shell one; 524. Support platform one; 525. Gear plate one; 526. Gear one; 527. Clamping plate one; 528. Clamping platform one; 529. Sliding groove one; 5291. 53. Hydraulic rod 1; 54. Limiting groove 3; 55. Servo motor 2; 56. Slide rail; 57. Semi-circular sleeve; 58. Positioning assembly 2; 59. Sliding sleeve 2; 50. Connecting plate 2; 51. Threaded groove bracket 2; 52. Servo motor 3; 53. Positioning shell 2; 54. Gear 2; 55. Gear disc 2; 56. Clamping assembly; 577. Support platform 2; 5791. Servo motor 4; 5792. Through-hole bevel gear 1; 5781. Clamping platform 2; 5782. Clamping plate 2; 5783. Sleeve; 5784. Rotary positioning frame; 5785. Through-hole bevel gear 2; 5786. Sliding groove 2; 5787. Double threaded rod 2; 5788. Through-hole bevel gear 3; 5789. Rotating shaft; 58. Double threaded rod 1; 6. Airtight re-inspection assembly; 7. Control panel; 9. Hydraulic rod 2. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] like Figure 1 - Figure 3 As shown, a multi-functional auxiliary device for air suspension assembly includes a drive base 1, a workbench assembly 2 fixedly connected to the upper end of the drive base 1, two support groups 4 provided on the upper front of the workbench assembly 2, a storage box 3 provided on the upper front of the workbench assembly 2, two hydraulic rods 9 fixedly connected to the upper left and right sides of the workbench assembly 2, a fixing mechanism 5 provided together with the output ends of the four hydraulic rods 9 and the workbench assembly 2, a control panel 7 provided on the front of the middle of the workbench assembly 2, and a workbench assembly 2 in the middle of the workbench assembly 2.

[0032] It should be noted that the connection method and control method of the drive base 1, the airtightness re-inspection component 6, the control panel 7, and the hydraulic rod 9 in this invention are all conventional designs and are standard design methods used by designers. The airtightness re-inspection component 6 is composed of components such as an air compressor, an air tank, a filter dryer, a pressure regulating valve, a high-pressure air pipe, a distribution manifold / air collection block, and a pressure gauge / leak detector. The control panel 7 is composed of a control center, a signal receiver, a touch screen HMI, and a data recording unit. The control panel 7 is used to set the calibration pressure, pressure holding time, leakage threshold, and save the pressure curve of each test for quality traceability and real-time display. The control panel 7 can control the operation of the airtightness re-inspection component 6 and the hydraulic rod 9. The drive base 1 can move on the track to drive the workbench component 2.

[0033] In detail, the front and rear subframes are clamped and positioned by the fixing mechanism 5. Then, the basic rigid components of the front and rear subframes are assembled, as well as the suspension guide control arms. Next, the support groups 4 on the left and right sides of the workbench assembly 2 are pulled out, the support groups 4 are adjusted, and the shock absorbers and spring assemblies are hung on the support groups 4 to facilitate the assembly of the shock absorbers and spring assemblies on the front and rear subframes. Then, the relevant accessories are installed step by step. The storage box 3 contains bolts and special sealing plugs. After the front and rear suspensions are assembled, the overall air tightness of the assembly needs to be checked. All air outlets of the suspension are sealed by special sealing plugs. Then, in conjunction with the control panel 7, calibrated compressed air is introduced through the air tightness check assembly 6. After the calibrated compressed air is introduced, a leak test is performed. After the test is qualified, the control panel 7 controls the four hydraulic rods 9 to drive the fixing mechanism 5 and the suspension assembly on the fixing mechanism 5 to be assembled with the vehicle body. Unlike traditional processes, there is no need to assemble in batches and then reassemble.

[0034] To further explain, such as Figure 4As shown, the workbench assembly 2 includes a workbench body 21. A slot 22 is provided in the middle of the upper end of the workbench body 21. Symmetrical fixing slots 27 are provided on both the left and right sides of the bottom wall of the slot 22's inner cavity. Grooves 28 are provided on both the front and rear sides of the middle of the upper end of the workbench body 21. A placement slot 1 25 is provided on the rear right wall of the inner cavity of the front groove 28, and a placement slot 26 is provided on the front right wall of the inner cavity of the front groove 28. A symmetrical rectangular groove 24 is provided on the front of the upper end of the workbench body 21. Limiting grooves 23 are provided on the front sides of both the left and right ends of the workbench body 21. The four fixing slots 27 have inner cavities... It is fixedly connected to four hydraulic rods 29 respectively. The inner cavity of the rectangular groove 24 on the right side is connected to the storage box 3. The bottom wall of the inner cavity of the placement groove 1 25 is fixedly connected to the airtight re-inspection component 6. The inner cavity of the placement groove 26 is fixedly connected to the control panel 7. The lower end of the workbench body 21 is fixedly connected to the upper end of the drive base 1. The front and rear sides of the upper end of the workbench body 21 are provided with grooves 28 to facilitate the assembly personnel to stand in them for assembly work. The limiting groove 1 23 is provided for the installation of the support group 4. During the assembly operation, the support group 4 can be pulled out from the inner cavity of the limiting groove 1 23 for use.

[0035] In detail, the airtightness re-inspection component 6 is installed through the placement slot 1 25, and the control panel 7 is installed through the placement slot 26. Four fixing slots 27 are opened in the inner cavity of the slot 22 to install the four hydraulic rods 29 respectively. Two rectangular slots 24 are opened to place two storage boxes 3, and two grooves 28 are opened to make the workbench body 21 I-shaped, which facilitates multiple operators to participate in the assembly work. During the assembly process, when it is necessary to adjust the distance between the suspension and the workbench body 21, the control panel 7 controls the four hydraulic rods 29 to jointly drive the fixing mechanism 5 to move upward to the appropriate position in the inner cavity of the slot 22, so as to achieve the purpose of adjusting the distance between the suspension and the workbench body 21, and then proceed to the next assembly operation.

[0036] To further explain, such as Figure 5 As shown, both support groups 4 include convex sliders 41. Sliding support plates 42 are rotatably connected to the outer surfaces of the two convex sliders 41 on the side away from each other. Limiting grooves 43 are formed on the upper side of the two sliding support plates 42 on the side closer to each other. Rotating rods 44 are rotatably connected to the rear side of the inner cavity of the two limiting grooves 43. Hanging rods 47 are fixedly connected to the upper side of the outer surface of the two rotating rods 44. Sleeves 45 are fixedly connected to the upper part of the side away from each other in the inner cavity of the two limiting grooves 43. Pull rods 46 are fixedly connected to the upper end of the two sliding support plates 42. The inner cavity of the two sleeves 45 is adapted to the outer surface of the two hanging rods 47 respectively. The outer surface of the convex sliders 41 and the outer surface of the sliding support plates 42 on the same side are slidably connected to the inner cavity of the limiting groove 23.

[0037] In detail, in the initial state, the convex slider 41 and the sliding support plate 42 are in a horizontal state, and the outer surface of the hanging rod 47 is stuck in the inner cavity of the sleeve 45. When assembling the shock absorber and spring assembly to the front subframe, by pulling the pull rod 46, the convex slider 41 is moved outward to a suitable position in the inner cavity of the same side limit groove 23 through the sliding support plate 42. Then, the sliding support plate 42 is rotated upward so that it rests against the side wall of the inner cavity of the limit groove 23. Then, the hanging rod 47 is rotated to disengage from the inner cavity of the sleeve 45, and the upper side of the shock absorber and spring assembly is hung on the hanging rod 47, which facilitates the assembly of the lower side of the shock absorber and spring assembly with the front subframe. When the support assembly 4 is not used, the hanging rod 47 is rotated and inserted into the inner cavity of the sleeve 45, the sliding support plate 42 is rotated in the opposite direction, and then the pull rod 46 is pushed to move the sliding support plate 42 and the convex slider 41 into the inner cavity of the limit groove 23, so that the support assembly 4 can be stored.

[0038] To further explain, such as Figure 6 - Figure 8 As shown, the fixing mechanism 5 includes an I-shaped platform 51. A limiting groove 3 53 is opened in the middle of the upper end of the I-shaped platform 51. The bottom of the inner cavity of the limiting groove 3 53 is fixedly connected to the front and rear symmetrical slide rails 55. A semi-circular sleeve 56 is fixedly connected to the upper side of the middle of the inner cavity of the limiting groove 3 53. A double threaded rod 1 58 is rotatably connected to the lower side of the middle of the inner cavity of the limiting groove 3 53. A servo motor 2 54 is fixedly connected to the right end of the double threaded rod 1 58. The right side of the outer surface of the two slide rails 55 and the right side of the outer surface of the double threaded rod 1 58 are jointly provided with a positioning group 1 52. The left side of the outer surface of the two slide rails 55 and the left side of the outer surface of the double threaded rod 1 58 are jointly provided with a positioning group 2 57. The lower end of the servo motor 2 54 is fixedly connected to the right side of the bottom wall of the inner cavity of the limiting groove 3 53. The lower side of the outer surface of the I-shaped platform 51 is slidably connected to the inner cavity of the slot 22. The output ends of the four hydraulic rods 2 9 are fixedly connected to the lower end of the I-shaped platform 51.

[0039] It should be noted that the connection method and control method of the servo motor 54 in this invention are conventional designs and are standard design practices for designers. The front subframe is fixed by the positioning group 52, and the rear subframe is fixed by the positioning group 57. The suspension assembly operation is performed in conjunction with the support group 4. The four hydraulic rods 9 drive the formwork 51 to slide upward in the cavity of the slot 22, adjusting the distance between the positioning group 52, the positioning group 57 and the worktable body 21. The servo motor 54 can drive the double threaded rod 58 to rotate. The rotation of the double threaded rod 58 causes the positioning group 52 and the positioning group 57 to move closer or further apart on the outer surface of the two slide rails 55, thereby adjusting the distance between the positioning group 52 and the positioning group 57. This facilitates the installation of the suspension to the vehicle body after assembly. The double threaded rod 58 is shielded by a semi-circular cover 56 to prevent dust from falling onto it, thus providing some protection.

[0040] To further explain, such as Figure 6 - Figure 9 As shown, the positioning assembly 52 includes a threaded slide 521. A connecting plate 5211 is fixedly connected to the upper end of the threaded slide 521. Sliding sleeves 522 are fixedly connected to both the front and rear sides of the lower end of the connecting plate 5211. A positioning shell 523 is fixedly connected to the upper end of the connecting plate 5211. A gear 525 is rotatably connected to the middle of the inner cavity of the positioning shell 523. A servo motor 5212 is fixedly connected to the front side of the inner cavity of the positioning shell 523. A gear 526 is fixedly connected to the output end of the servo motor 5212. The outer surface of the gear 525 meshes with the outer surface of the gear 526. A support is fixedly connected to the upper end of the gear 525. Platform 524 has clamping platforms 528 fixedly connected to both the front and rear sides of its upper end. Each clamping platform 528 has a sliding groove 529 on its upper right side in the horizontal direction. Each sliding groove 529 has a hydraulic rod 5291 fixedly connected to the left side of its inner wall. Each hydraulic rod 5291 has a clamping plate 527 fixedly connected to its output end. The lower side of the outer surface of each clamping plate 527 is slidably connected to the right side of the inner cavity of each sliding groove 529. The inner cavity of each sliding sleeve 522 is slidably connected to the right side of the outer surface of each slide rail 55. The inner cavity of each threaded slide bracket 521 is engaged with the right side of the outer surface of each double threaded rod 58.

[0041] It should be noted that the connection method and control method of the hydraulic rod 5291 and the servo motor 5212 in this invention are conventional designs and are standard design practices for designers. First, the front subframe is placed at the upper horizontal position of the two clamping platforms 528 and abuts against the front vertical position of the clamping platforms 528. Then, the hydraulic rod 5291 on the same side is activated, which drives the clamping plate 527 to move to the left in the inner cavity of the sliding groove 529. This allows the clamping plate 527 on the same side to work with the clamping platforms 528 to clamp the front subframe. Then, the support assembly 4 works together to clamp the front subframe with the shock absorber and spring assembly. When assembling the front side of the frame, and then assembling the rear side of the front subframe, the sliding support plate 42 needs to be rotated in the opposite direction to make it parallel to the convex slider 41. This ensures that the sliding support plate 42 does not interfere with the rotation of the support platform 524 that drives the front frame. The servo motor 5212 is then started, driving the gear 526 to rotate. The rotation of the gear 526 further drives the gear disc 525 to rotate, which in turn drives the support platform 524 to rotate 180 degrees, moving the position to be assembled on the rear side of the front frame to the front side. Then, the sliding support plate 42 is rotated. The shock absorber and spring assembly are then placed against the inner wall of the limiting groove 23. The assembly of the front frame can then begin. After assembly, the support assembly 4 is retracted. The servo motor 5212 is then restarted to drive the gear 526 in the opposite direction, causing the gear plate 525 to rotate in the opposite direction along with the support platform 524. This causes the assembled front frame to rotate in the opposite direction and return to its initial position. After a re-inspection for airtightness, the frame can be assembled with the vehicle body. After the positioning assembly 57 clamps and secures the rear frame and completes the assembly, the servo motor 5212 is restarted. 54 drives the double threaded rod 58 to rotate, which in turn drives the threaded groove slide 521 on the upper right side of the outer surface of the double threaded rod 58 to move the sliding sleeves 522 on the front and rear sides of the lower end to move to the left or right on the outer surface of the two slide rails 55, respectively. This causes the positioning shell 523 to move together with the support platform 524, clamping plate 527 and clamping platform 528, and finally move the entire positioning group 52 and positioning group 57 closer or further apart, so that the assembled front and rear suspension assemblies move closer or further apart to the appropriate position, and then can be assembled with the vehicle body.

[0042] To further explain, such as Figure 6 - Figure 8 and Figure 10 - Figure 11As shown, positioning assembly 2 57 includes screw groove bracket 2 573. The inner cavity of screw groove bracket 2 573 is meshed with the left side of the outer surface of double threaded rod 1 58. A connecting plate 2 572 is fixedly connected to the upper end of screw groove bracket 2 573. Sliding sleeves 2 571 are fixedly connected to the front and rear sides of the lower end of connecting plate 2 572. The inner cavities of the two sliding sleeves 2 571 are slidably connected to the left side of the outer surface of two slide rails 55, respectively. A positioning shell 2 575 is fixedly connected to the upper end of connecting plate 2 572. A gear disk 2 577 is rotatably connected to the middle of the inner cavity of positioning shell 2 575. A servo motor 3 574 is fixedly connected to the front side of the inner cavity of positioning shell 2 575. The output end of servo motor 3 574 is fixedly connected to the front side of positioning shell 2 575. A gear 2 576 is fixedly connected, and the outer surface of a gear disk 2 577 meshes with the outer surface of the gear 2 576. A support platform 2 579 is fixedly connected to the upper end of the gear disk 2 577. A mounting groove is opened in the middle of the upper end of the support platform 2 579. A servo motor 4 5791 is fixedly connected to the inner cavity of the mounting groove. A through-hole bevel gear 1 5792 is fixedly connected to the upper end of the servo motor 4 5791. A clamping assembly 578 is provided on the upper end of the support platform 2 579 and the outer surface of the through-hole bevel gear 1 5792. The clamping assembly 578 includes two sleeves 5783 and two rotary positioning frames 5784. The lower ends of the two rotary positioning frames 5784 are connected to the support platform 2 579. The two rotating positioning frames 5784 are rotatably connected to a rotating shaft 5789 within their inner cavities. A through-hole bevel gear 5785 is fixedly connected to the middle of the outer surface of the rotating shaft 5789 and to both ends of the rotating shaft 5789, passing through a sleeve 5783 on the same side. A through-hole bevel gear 5788 is meshed with the outer surface of the front through-hole bevel gear 5785. Double-threaded rods 5787 are fixedly connected to the inner cavities of both through-hole bevel gears 5788. Clamping platforms 5781 are rotatably connected to the left and right sides of the outer surfaces of the two double-threaded rods 5787. The lower ends of four servo motors 5791 are fixedly connected to the upper end of the support platform 579. Each of the four clamping platforms 25781 has a sliding groove 25786 on the side of its horizontal upper end that is far apart from each other. The inner cavity of each of the four sliding grooves 25786 is slidably connected to a clamping plate 25782. The left and right sides of the outer surface of the double threaded rod 25787 on the same side are respectively engaged with the inner cavity of the two clamping plates 25782. The outer surface of the through hole bevel tooth 15792 is engaged with the outer surface of the through hole bevel tooth 25785 located in the middle. The left and right ends of the sleeve 5783 on the same side are respectively fixedly connected to the ends of the two servo motors 45791 that are close to each other. The inner cavity of the two sleeves 5783 is respectively sleeved and connected to the middle of the outer surface of the two double threaded rods 25787.

[0043] It should be noted that the connection method and control method of servo motor three 574 and servo motor four 5791 in this invention are conventional designs and are standard design practices for designers. First, the rear subframe is placed on the two clamping platforms two 5781 on the left and right sides. Then, servo motor four 5791 is started to drive the through-hole bevel gear one 5792 to rotate. The rotation of the through-hole bevel gear one 5792 drives the through-hole bevel gear two 5785 fixed in the middle of the outer surface of the rotating shaft 5789 to rotate, so that the rotating shaft 5789 rotates in the inner cavity of the two rotating positioning frames 5784. The same side drives the through hole bevel teeth 5785 located at the front and rear ends of the rotating shaft 5789 to rotate simultaneously. The rotation of the through hole bevel teeth 5785 on the front and rear sides drives the through hole bevel teeth 5788 on the same side to rotate together. The rotation of the through hole bevel teeth 5788 causes the two double threaded rods 5787 to rotate together, causing the left and right clamping plates 5782 on the front and rear sides to move closer to each other to a suitable position. This allows the four clamping platforms 5781 and clamping plates 5782 to clamp and fix the rear frame simultaneously, and then the rear suspension assembly operation can be carried out.

[0044] During the rear suspension assembly, first, hang the shock absorber and spring assembly on the hanger 47 located in the left support group 4. Then, assemble the front side of the rear subframe. After assembling the front side of the rear frame, when assembling the rear side, rotate the sliding support plate 42 to make it parallel to the convex slider 41, so that the sliding support plate 42 does not affect the rotation of the rear frame driven by 597. Start the servo motor 3 574 to drive the gear 2 576 to rotate. The rotation of the gear 2 576 drives the gear disc 2 577. The rotation of the gear plate 577 causes the support platform 579, which is fixedly connected to the gear plate 577, to rotate as well. The rotation of the support platform 579 causes the clamping assembly 578 and the rear frame fixed to the clamping assembly 578 to rotate 180 degrees, so that the position to be assembled on the rear side of the rear frame is rotated to the front side. Then, the sliding support plate 42 is rotated and abuts against the inner wall of the limiting groove 23, and the shock absorber and spring assembly is hung on the hanging rod 4 located in the left support assembly 4. Next, the assembly operation can be carried out. After the assembly is completed, the support group 4 is retracted and the servo motor 3 574 is started again to drive the gear 2 576 to rotate in the opposite direction. With the cooperation of the gear plate 2 577, the support platform 2 579 and the clamping group 578, the assembled rear suspension assembly is rotated 180 degrees and restored to the initial state. After the airtightness is checked again, the assembly operation with the body can be carried out. Then, the servo motor 2 54 is started again to drive the double threaded rod 1 58 to rotate. This causes the threaded groove bracket 2 573 on the left side of the outer surface of the double threaded rod 1 58 to drive the connecting plate 2 572 and the sliding sleeves 2 571 on the front and rear sides of the lower end of the connecting plate 2 572 to slide to the left or right on the outer surface of the two slide rails 55 respectively. Through the cooperation of the positioning shell 2 575, the support platform 2 579 and the clamping group 578, the positioning group 1 52 and the positioning group 2 57 move closer or further away from each other, thereby moving the front suspension and the rear suspension closer or further away from each other to the appropriate position. Then the assembly operation with the body can be carried out.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-functional auxiliary device for air suspension assembly, comprising a drive base (1), characterized in that: The upper end of the drive base (1) is fixedly connected to the workbench assembly (2). The upper front of the workbench assembly (2) is provided with two support groups (4). The upper front of the workbench assembly (2) is provided with a storage box (3). The upper left and right sides of the workbench assembly (2) are fixedly connected with two hydraulic rods (9). The output ends of the four hydraulic rods (9) and the workbench assembly (2) are provided with a fixing mechanism (5). The middle front of the workbench assembly (2) is provided with a control panel (7). The middle of the workbench assembly (2) is provided with a workbench assembly (2).

2. The multi-functional auxiliary device for air suspension assembly according to claim 1, characterized in that: The workbench assembly (2) includes a workbench body (21). A slot (22) is provided in the middle of the upper end of the workbench body (21). A fixing slot (27) with front and back symmetrical is provided on both the left and right sides of the bottom wall of the slot (22). A groove (28) is provided in the middle of the upper end of the workbench body (21). A placement groove 1 (25) is provided on the rear side of the right wall of the groove (28) located on the front side. A placement groove 2 (26) is provided on the front side of the right wall of the groove (28) located on the front side. A rectangular groove (24) with left and right symmetrical is provided on the front side of the upper end of the workbench body (21). A limit groove 1 (23) is provided on the front side of both the left and right ends of the workbench body (21).

3. The multi-functional auxiliary device for air suspension assembly according to claim 2, characterized in that: The inner cavities of the four fixed slots (27) are respectively fixedly connected to the four hydraulic rods (9). The inner cavity of the rectangular slot (24) on the right side is sleeved and connected to the storage box (3). The bottom wall of the inner cavity of the placement slot (25) is fixedly connected to the airtight re-inspection component (6). The inner cavity of the placement slot (26) is fixedly connected to the control panel (7). The lower end of the workbench body (21) is fixedly connected to the upper end of the drive base (1).

4. The multi-functional auxiliary device for air suspension assembly according to claim 2, characterized in that: Both of the support groups (4) include convex sliders (41). The outer surfaces of the two convex sliders (41) that are far apart from each other are rotatably connected to sliding support plates (42). The upper sides of the two sliding support plates (42) that are close to each other are provided with limit grooves (43). The rear sides of the inner cavities of the two limit grooves (43) are rotatably connected to rotating rods (44). The upper sides of the outer surfaces of the two rotating rods (44) are fixedly connected to hanging rods (47). The upper parts of the inner cavities of the two limit grooves (43) that are far apart from each other are fixedly connected to sleeves (45). The upper ends of the two sliding support plates (42) are fixedly connected to pull rods (46).

5. The multi-functional auxiliary device for air suspension assembly according to claim 4, characterized in that: The inner cavities of the two sleeves (45) are respectively adapted to the outer surfaces of the two hanging rods (47), and the outer surfaces of the convex slider (41) and the sliding support plate (42) on the same side are slidably connected to the inner cavity of the limiting groove (23).

6. The multi-functional auxiliary device for air suspension assembly according to claim 2, characterized in that: The fixing mechanism (5) includes an I-shaped platform (51), with a limiting groove three (53) opened in the middle of the upper end of the I-shaped platform (51). The bottom of the inner cavity of the limiting groove three (53) is fixedly connected to symmetrical slide rails (55). A semi-circular sleeve (56) is fixedly connected to the upper side of the middle of the inner cavity of the limiting groove three (53). A double threaded rod one (58) is rotatably connected to the lower side of the middle of the inner cavity of the limiting groove three (53). A servo motor two (54) is fixedly connected to the right end of the double threaded rod one (58). The right side of the outer surface of the two slide rails (55) and the right side of the outer surface of the double threaded rod one (58) are jointly provided with a positioning group one (52). The left side of the outer surface of the two slide rails (55) and the left side of the outer surface of the double threaded rod one (58) are jointly provided with a positioning group two (57).

7. The multi-functional auxiliary device for air suspension assembly according to claim 6, characterized in that: The lower end of the servo motor 2 (54) is fixedly connected to the right side of the bottom wall of the inner cavity of the limiting groove 3 (53), the lower side of the outer surface of the I-shaped platform (51) is slidably connected to the inner cavity of the slot (22), and the output ends of the four hydraulic rods 2 (9) are fixedly connected to the lower end of the I-shaped platform (51).

8. The multi-functional auxiliary device for air suspension assembly according to claim 6, characterized in that: The positioning assembly (52) includes a threaded slide (521), with a connecting plate (5211) fixedly connected to the upper end of the threaded slide (521). Sliding sleeves (522) are fixedly connected to both the front and rear sides of the lower end of the connecting plate (5211). A positioning shell (523) is fixedly connected to the upper end of the connecting plate (5211). A gear disk (525) is rotatably connected to the center of the inner cavity of the positioning shell (523). A servo motor (5212) is fixedly connected to the front side of the inner cavity of the positioning shell (523). A gear (526) is fixedly connected to the output end of the servo motor (5212). The outer surface of the gear disk (525) meshes with the outer surface of the gear (526). A gear is fixedly connected to the upper end of the gear disk (525). Support platform 1 (524), with clamping platform 1 (528) fixedly connected to both the front and rear sides of the upper end of the support platform 1 (524). Sliding groove 1 (529) is opened on the right side of the upper end of the two clamping platforms 1 (528) in the horizontal direction. Hydraulic rod 1 (5291) is fixedly connected to the left side of the bottom wall of the inner cavity of the two sliding groove 1 (529). Clamping plate 1 (527) is fixedly connected to the output end of the two hydraulic rod 1 (5291). The lower side of the outer surface of the two clamping plates 1 (527) is slidably connected to the right side of the inner cavity of the two sliding groove 1 (529). The inner cavity of the two sliding sleeve 1 (522) is slidably connected to the right side of the outer surface of the two slide rails (55). The inner cavity of the screw groove slide bracket 1 (521) is meshed with the right side of the outer surface of the double threaded rod 1 (58).

9. The multi-functional auxiliary device for air suspension assembly according to claim 6, characterized in that: The second positioning assembly (57) includes a second threaded bracket (573). The inner cavity of the second threaded bracket (573) is meshed with the left side of the outer surface of the first double threaded rod (58). A second connecting plate (572) is fixedly connected to the upper end of the second threaded bracket (573). Sliding sleeves (571) are fixedly connected to the front and rear sides of the lower end of the second connecting plate (572). The inner cavities of the two sliding sleeves (571) are slidably connected to the left side of the outer surface of the two slide rails (55), respectively. A second positioning shell (575) is fixedly connected to the upper end of the second connecting plate (572). A gear plate (577) is rotatably connected to the middle of the inner cavity of the second positioning shell (575). The front of the inner cavity of the second positioning shell (575) is... A servo motor three (574) is fixedly connected to the side. A gear two (576) is fixedly connected to the output end of the servo motor three (574). The outer surface of the gear plate two (577) meshes with the outer surface of the gear two (576). A support platform two (579) is fixedly connected to the upper end of the gear plate two (577). An installation groove is provided in the middle of the upper end of the support platform two (579). A servo motor four (5791) is fixedly connected to the inner cavity of the installation groove. A through-hole bevel gear one (5792) is fixedly connected to the upper end of the servo motor four (5791). A clamping group (578) is provided on the upper end of the support platform two (579) and the outer surface of the through-hole bevel gear one (5792).

10. The multi-functional auxiliary device for air suspension assembly according to claim 9, characterized in that: The clamping assembly (578) includes two sleeves (5783) and two rotating positioning frames (5784). The lower ends of the two rotating positioning frames (5784) are fixedly connected to the second support platform (579). The inner cavities of the two rotating positioning frames (5784) are rotatably connected to a rotating shaft (5789). The middle part of the outer surface of the rotating shaft (5789) and the front and rear ends of the rotating shaft (5789) are fixedly connected to the sleeves (5783) on the same side. The outer surface of the second through-hole conical teeth (5785) on the front side is meshed with a third through-hole conical teeth (5788). The inner cavities of the two third through-hole conical teeth (5788) are fixedly connected to a second double threaded rod (5787). The left and right sides of the outer surfaces of the two second double threaded rods (5787) are rotatably connected to a second clamping platform (5781). The lower ends of the four servo motors (5791) are fixedly connected to the upper end of the support platform (579). The four clamping platforms (5781) are provided with sliding grooves (5786) on the side of their horizontal upper ends that are far apart from each other. The inner cavities of the four sliding grooves (5786) are slidably connected with clamping plates (5782). The left and right sides of the outer surface of the double threaded rod (5787) on the same side are respectively engaged with the inner cavities of the two clamping plates (5782). The outer surface of the through hole bevel tooth (5792) is engaged with the outer surface of the through hole bevel tooth (5785) located in the middle. The left and right ends of the sleeve (5783) on the same side are respectively fixedly connected to the two servo motors (5791) that are close to each other. The inner cavities of the two sleeves (5783) are respectively sleeved and connected to the middle of the outer surfaces of the two double threaded rods (5787).

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