Cast aluminum steering knuckle shape righting device
By designing a straightening device for cast aluminum steering knuckles, the problem of steering knuckle deformation during quenching was solved, improving machining accuracy and reducing scrap rate, thus achieving a highly efficient production process.
Patent Information
- Application Number
- CN202423318175.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing steering knuckles are prone to deformation during the quenching process, leading to reduced machining accuracy, high scrap rate, and increased production costs.
A straightening device for cast aluminum steering knuckles was designed, including a base plate, a bearing seat, a positioning shaft, a locking component, and a limiting post. The steering knuckle is fixed by the positioning shaft and the locking component, and the bushing hole is straightened by a press and a pressure head to ensure the positional stability of the steering knuckle.
It improved the machining accuracy of the steering knuckle, reduced the scrap rate, saved production costs, simplified the operation process, and reduced equipment and time consumption.
Smart Images
Figure CN223629268U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile parts, especially relates to a cast aluminum steering knuckle straightening device. BACKGROUND
[0002] The steering knuckle is one of the important parts in the automobile steering axle, and can make the automobile travel stably and transmit the travel direction sensitively. The steering knuckle transmits and bears the load of the front part of the automobile, supports and drives the front wheel to rotate around the kingpin to make the automobile turn. In the automobile travel state, it bears the variable impact load, therefore, it is required to have high strength.
[0003] The existing steering knuckle mostly adopts the aluminum alloy material, the aluminum alloy has low density, but the strength is relatively high, close to or more than the high-quality steel, has good plasticity, and has excellent conductivity, heat conductivity and corrosion resistance. In the production and manufacturing process of the steering knuckle, quenching treatment is needed, so as to improve the strength and wear resistance of the steering knuckle, enhance the fatigue resistance degree, prolong the service life, and also be beneficial to guarantee the stability and precision of the steering size, and meet the product requirements.
[0004] In the quenching treatment process, the steering knuckle often needs to be heat treated, and the stress concentration of heat treatment is easy to cause partial deformation of the steering knuckle. When the steering knuckle is quenched and needs to be demolded, the ejector rod ejects the bushing hole of the steering knuckle outward, so that the stress concentration around the bushing hole deforms, the precision of the steering knuckle machining is reduced, the waste rate is high, and the production cost is increased. UTILITY MODEL CONTENTS
[0005] The utility model aims at solving the technical insufficiency, and provides a cast aluminum steering knuckle straightening device.
[0006] Therefore, the utility model provides a cast aluminum steering knuckle straightening device, which comprises a bottom plate, two shaft seats are fixedly installed on the bottom plate in symmetry, a positioning shaft is fixedly installed on the front side of the two shaft seats, the positioning shaft is used for positioning the bearing hole on the steering knuckle, a locking part is installed on the front side of the positioning shaft, the locking part is used for limiting the position of the steering knuckle, a limiting column is fixedly installed on the bottom plate on the rear side of the shaft seat, the limiting column is located below the press head of a press machine and is coaxially arranged with the press head, and the bushing hole at the top of the steering knuckle is located between the limiting column and the press head.
[0007] Preferably, the locking part comprises a locking ring, a locking nut and a screw, the end of the screw is fixedly connected with the positioning shaft in a coaxial mode, the locking nut is threadedly connected with the screw, the locking ring is open, the locking ring is sleeved on the screw and locks the steering knuckle through the locking nut.
[0008] Preferably, the shaft center of the locking ring is provided with a through hole, and a fan-shaped opening is connected below the through hole.
[0009] Preferably, an annular limiting plate is fixedly installed on the rear side of the locking ring, and the limiting plate is used for tightly pressing the bearing hole.
[0010] Preferably, the top width of the fan-shaped opening is smaller than the diameter of the through hole.
[0011] Preferably, a supporting column is fixedly installed on the bottom plate of the front side of the limiting column, and the supporting column is used for supporting the top of the knuckle.
[0012] Preferably, the top of the supporting column is in a trapezoidal structure.
[0013] Preferably, the height of the supporting column is higher than the height of the limiting column.
[0014] The cast aluminum knuckle shaping device has the following beneficial effects.
[0015] (1) the bearing hole of the knuckle needing shaping is sleeved on the positioning shaft, the top of the knuckle is supported by the supporting column, the bushing hole at the top of the knuckle is located directly above the limiting column, then the locking ring is embedded on the screw downwards, the locking nut is tightened, the limiting plate at the rear side of the locking ring tightly presses the knuckle, the position of the knuckle is fixed, then the press is started, the press drives the press head to move downwards, the knuckle is pressed on the limiting column for shaping operation, the shaping of the position of the bushing hole of the knuckle is realized, the mechanical performance of the knuckle after shaping still meets the requirements of the product, the waste product rate of the product is reduced, and the production cost is saved.
[0016] (2) the left-hand and right-hand knuckles can share the shaping device, a plurality of left-hand or right-hand knuckles can be continuously shaped, a new shaping device does not need to be replaced, the operation process is simple, equipment cost is saved, and time is saved;
[0017] (3) when a new knuckle needs to be replaced and the bearing hole of the knuckle is sleeved on the positioning shaft, the locking nut only needs to be rotated several times outwardly, the locking ring is taken down, the existing knuckle is taken down and the new knuckle is placed, the screw does not need to be removed, thread failure is avoided, and the time for installing and dismounting the knuckle is saved. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is a structural schematic view of the cast aluminum knuckle shaping device in the embodiment;
[0019] Figure 2 is an installation structural schematic view of the left-hand knuckle in the embodiment;
[0020] Figure 3This is a schematic diagram of the installation structure of the right steering knuckle in this embodiment;
[0021] Figure 4 This is a schematic diagram of the steering knuckle in this embodiment;
[0022] Figure 5 This is a schematic diagram of the locking ring structure in this embodiment;
[0023] Figure 6 This is a schematic diagram of the limiting plate in this embodiment;
[0024] Figure 7 This is a 3D scan image of the steering knuckle before correction in this embodiment;
[0025] Figure 8 This is a 3D scan image of the steering knuckle after correction in this embodiment.
[0026] The markings in the diagram are: 1. Base plate; 2. Shaft seat; 3. Positioning shaft; 4. Steering knuckle; 5. Bearing hole; 6. Locking component; 61. Locking ring; 62. Locking nut; 63. Screw; 7. Limiting post; 8. Pressure head; 9. Bushing hole; 10. Through hole; 11. Fan-shaped opening; 12. Limiting plate; 13. Support column; 14. Lower worktable; 15. Upper worktable. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.
[0028] Example:
[0029] like Figures 1-8 As shown, this utility model provides a cast aluminum steering knuckle straightening device, including a base plate 1. Two bearing seats 2 are symmetrically fixedly installed on both sides of the base plate 1. A positioning shaft 3 is fixedly installed on the upper front side of the two bearing seats 2. The positioning shaft 3 is inclined upward, and the inclination angle matches the position of the bearing hole 5. The positioning shaft 3 is used to position the bearing hole 5 on the steering knuckle 4. A locking component 6 is installed on the front side of the positioning shaft 3. The locking component 6 is used to limit the position of the steering knuckle 4. A limiting post 7 is fixedly installed on the base plate 1 on the rear side of the bearing seat 2. The limiting post 7 is located below the press head 8 and is coaxially arranged with the press head 8. The bushing hole 9 at the top of the steering knuckle 4 is located between the limiting post 7 and the press head 8. Specifically, the press head 8 is fixedly installed at the bottom of the upper worktable 15 of the press.
[0030] The left and right steering knuckles 4 can share the orthopedic device, and a plurality of left or right steering knuckles 4 can be continuously orthopedically operated without replacing a new orthopedic device, the operation process is simple, equipment cost and time are saved.
[0031] Further, the locking component 6 comprises a locking ring 61, a locking nut 62 and a screw 63, the end of the screw 63 is fixedly connected with the positioning shaft 3 in a coaxial manner, the locking nut 62 is threadedly connected with the screw 63, the locking ring 61 is open, the locking ring 61 is installed between the locking nut 62 and the steering knuckle 4, the locking ring 61 is sleeved on the screw 63, and the steering knuckle 4 is locked through the locking nut 62.
[0032] Further, an axial center of the locking ring 61 is provided with a through hole 10, the through hole 10 is slightly larger than the diameter of the screw 63, and a fan-shaped opening 11 is connected below the through hole 10.
[0033] Further, an annular limiting plate 12 is fixedly installed at the rear side of the locking ring 61, and the limiting plate 12 is used for tightly pressing the bearing hole 5.
[0034] Further, the top width of the fan-shaped opening 11 is smaller than the diameter of the through hole 10, so that the locking ring 61 can be sleeved on the screw 63 without falling off.
[0035] Further, a support column 13 is fixedly installed on the bottom plate 1 at the front side of the limiting column 7, and the support column 13 is used for supporting the top of the steering knuckle 4.
[0036] Further, the top of the support column 13 is in a trapezoidal structure, so that the support column 13 is less likely to fall when subjected to pressure. During the orthopedic process, the steering knuckle 4 will exert a certain pressure on the support column 13, the trapezoidal structure helps to maintain the stability of the support column 13, and meanwhile, the contact area of the top of the trapezoidal structure with the top of the steering knuckle 4 is moderate, which will not cause instability of support or too large pressure, and helps to disperse the pressure and protect the steering knuckle 4 and the support column 13 from being damaged.
[0037] Further, the height of the support column 13 is higher than the height of the limiting column 7, so that the steering knuckle 4 has enough space for necessary adjustment and positioning during the orthopedic process, and the orthopedic operation of the steering knuckle 4 is ensured to be smoothly performed.
[0038] The working principle of the embodiment is as follows:
[0039] First, the bottom plate 1 is fixedly installed on the lower workbench 14 of the press, so that the limiting column 7 is coaxially arranged with the press head 8, and then the bearing hole 5 of the knuckle 4 to be straightened is sleeved on the positioning shaft 3, the top of the knuckle 4 is placed on the supporting column 13 and supported by the supporting column 13, so that the bushing hole 9 at the top of the knuckle 4 is located directly above the limiting column 7, the locking ring 61 is sleeved on the screw 63 downwards, the locking nut 62 is tightened, the limiting plate 12 at the rear side of the locking ring 61 is tightly pressed against the knuckle 4, the position of the knuckle 4 is fixed, and then the press is started. The press drives the press head 8 to move downward, that is, the press head 8 applies external force to the opposite direction of deformation of the bushing hole 9 to straighten, the knuckle 4 is pressed on the limiting column 7, the press head 8 stays for about 1 min, then the press head 8 rises, and the above process is repeated for about 3 cycles, and the straightening is completed. Finally, the locking nut 62 is turned outward, the locking ring 61 is removed, the knuckle 4 is removed along the direction of the screw 63, and the knuckle 4 is placed for at least 24 hours before being detected by a deformation gauge or 3D scanning.
[0040] In the description of the present application, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.
[0041] The above is only a specific embodiment of the present application, and cannot limit the scope of the present application, so the replacement of equivalent components or equivalent changes and modifications made within the scope of the present application are still within the scope of the present application.
Claims
1. A cast aluminum knuckle orthotic device, characterized by, The application relates to a locking device for a steering knuckle, which comprises a bottom plate (1), two shaft seats (2) symmetrically fixed on the bottom plate (1), a positioning shaft (3) fixed on the front side of the two shaft seats (2) and used for positioning a bearing hole (5) on a steering knuckle (4), a locking part (6) installed on the front side of the positioning shaft (3) and used for limiting the position of the steering knuckle (4), a limiting column (7) fixed on the bottom plate (1) at the rear side of the shaft seat (2), the limiting column (7) being located below a press head (8) and coaxially arranged with the press head (8), and a bushing hole (9) on the top of the steering knuckle (4) being located between the limiting column (7) and the press head (8).
2. The cast aluminum knuckle orthotic device of claim 1, wherein, The locking part (6) comprises a locking ring (61), a locking nut (62) and a screw (63), the end of the screw (63) is coaxially fixedly connected with the positioning shaft (3), the locking nut (62) is threadedly connected with the screw (63), the locking ring (61) is in an open shape, the locking ring (61) is sleeved on the screw (63) and locks the steering knuckle (4) through the locking nut (62).
3. The cast aluminum knuckle orthotic device of claim 2, wherein, A through hole (10) is formed in the shaft center of the locking ring (61), and a fan-shaped opening (11) is connected below the through hole (10).
4. The cast aluminum knuckle orthotic device of claim 3, wherein, An annular limiting plate (12) is fixedly installed on the rear side of the locking ring (61) and used for tightly pressing the bearing hole (5).
5. The cast aluminum knuckle orthotic device of claim 3, wherein: The top width of the fan-shaped opening (11) is smaller than the diameter of the through hole (10).
6. The cast aluminum knuckle orthotic device of claim 1, wherein, A supporting column (13) is fixedly installed on the bottom plate (1) at the front side of the limiting column (7) and used for supporting the top of the steering knuckle (4).
7. The cast aluminum knuckle orthotic device of claim 6, wherein, The top of the supporting column (13) is in a trapezoidal structure.
8. The cast aluminum knuckle orthotic device of claim 7, wherein, The height of the supporting column (13) is higher than the height of the limiting column (7).