Knuckle casting mold
By setting up secondary casting branches and connection channels in the steering joint casting mold, we ensure that the molten iron is uniformly input to the support ear mold, so that it is always in a high temperature state, which solves the problem of support ear solidification too quickly during the steering joint casting process, and improves the Material quality and yield rate.
Patent Information
- Application Number
- CN202420449881.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-07
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-03-07
AI Technical Summary
During the casting of the car steering knuckle, the two support ears in the lower right corner are thinner, resulting in too fast solidification, resulting in unqualified material and affecting the yield and quality.
A steering knuckle casting mold is designed. By setting up a secondary casting branch and connecting channel, we ensure that the molten iron can be evenly input to the support ear mold of the steering knuckle mold, so that the support ears are always in a high temperature state and solidify at the same time as other parts.
Through this mold design, cementite is avoided, the material is qualified, the product yield and quality are improved, and the production cost is reduced.
Smart Images
Figure CN222448140U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of casting molds, in particular to a steering knuckle casting mold. Background Art
[0002] The steering knuckle enables the car to run stably and transmit the driving direction sensitively. The function of the steering knuckle is to transmit and bear the load on the front of the car, support and drive the front wheel to rotate around the kingpin to steer the car. When the car is driving, it is subjected to variable impact loads. Since the steering knuckle is an important component in the car steering system, ensuring the material of the steering knuckle is an important purpose of the casting mold design. In the process of casting the car steering knuckle, the thickness of the two ears at the lower right corner of the steering knuckle part is relatively thin, and the thickness size is quite different from that of other parts, resulting in the fastest solidification of these two ears during the production process. The metallographic examination of the casting here found that the cementite is greater than 3%, resulting in unqualified material and affecting the yield and quality of the product. Therefore, we launched a steering knuckle casting mold. Utility Model Content
[0003] The main purpose of the utility model is to provide a steering knuckle casting mold, which can effectively solve the problems in the background technology.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0005] A steering knuckle casting mold comprises a mold body, a sprue is arranged at the right lower end of the mold body, a steering knuckle mold is arranged at the left lower end of the mold body, a steering knuckle casting is cast in the steering knuckle mold, a secondary pouring branch is arranged between the lower part of the steering knuckle mold and the lower part of the mold body, a main riser is arranged at the upper part of the steering knuckle mold, an exhaust channel is arranged at the left end of the main riser, and a connecting channel is arranged between the right end of the main riser and the left end of the sprue;
[0006] The auxiliary pouring branch includes a cross runner, a secondary riser is arranged on the left part of the cross runner, a first inner gate is arranged on the lower side of the secondary riser, a second inner gate is arranged on the other side of the secondary riser away from the first inner gate, and the upper side of the right part of the cross runner is connected to the lower part of the straight runner.
[0007] Preferably, the steering knuckle casting includes a steering knuckle body, a positioning hole is opened in the middle of the upper end of the steering knuckle body, a plurality of mounting holes are opened around the upper end of the steering knuckle body, two support ears are arranged on the right side of the lower part of the outer surface of the steering knuckle body, and the opposite surfaces of the two support ears are opened with inner holes.
[0008] Preferably, the thickness of the two supporting ears is set to 12 mm, and the auxiliary riser is located between the two supporting ears.
[0009] Preferably, the runner and the exhaust channel are both configured as L-shaped structures, and the interior of the runner is communicated with the interior of the straight runner, and the straight runner is configured as a T-shaped structure.
[0010] Preferably, the interior of the first ingate and the interior of the second ingate are both communicated with the interior of the steering knuckle mold.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] In a steering knuckle casting mold of the utility model, an auxiliary pouring branch is provided, molten iron is input into the cross runner through the straight runner, and the molten iron enters the steering knuckle mold from the upper side through the connecting channel, and then the main riser and the auxiliary riser can be used to discharge the air in the steering knuckle mold, impurities in the casting metal liquid, etc. during casting, and then the molten iron can be respectively input into the lug mold of the steering knuckle mold through the first inner gate and the second inner gate, so that the two lugs are always in a high temperature state to keep solidifying at the same time as other parts of the steering knuckle casting, thereby avoiding the occurrence of cementite, ensuring the quality of the material, effectively improving the yield and quality of the product, and reducing the production cost of the steering knuckle casting. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the overall structure of a steering knuckle casting mold of the utility model;
[0014] Figure 2 The utility model is a steering knuckle casting mold Figure 1 A magnified view of middle;
[0015] Figure 3 It is a schematic diagram of the overall structure of a steering knuckle casting of a steering knuckle casting mold of the utility model;
[0016] Figure 4 The utility model is a steering knuckle casting mold Figure 3 Enlarged view of B.
[0017] In the figure: 1. mold body; 2. straight runner; 3. steering knuckle mold; 4. steering knuckle casting; 5. auxiliary pouring branch; 6. main riser; 7. exhaust channel; 8. connecting channel; 41. steering knuckle body; 42. positioning hole; 43. mounting hole; 44. support ear; 45. inner hole; 51. cross runner; 52. auxiliary riser; 53. first inner gate; 54. second inner gate. DETAILED DESCRIPTION
[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0021] See also Figure 1-4 , the utility model provides a technical solution:
[0022] A steering knuckle casting mold comprises a mold body 1, a sprue 2 is arranged at the right lower end of the mold body 1, a steering knuckle mold 3 is arranged at the left lower end of the mold body 1, a steering knuckle casting 4 is cast in the steering knuckle mold 3, a secondary pouring branch 5 is arranged between the lower part of the steering knuckle mold 3 and the lower part of the mold body 1, a main riser 6 is arranged at the upper part of the steering knuckle mold 3, an exhaust channel 7 is arranged at the left end of the main riser 6, and a connecting channel 8 is arranged between the right end of the main riser 6 and the left end of the sprue 2;
[0023] The auxiliary gate branch 5 includes a cross runner 51, a secondary riser 52 is arranged on the left side of the cross runner 51, a first inner gate 53 is arranged on the lower side of the secondary riser 52, a second inner gate 54 is arranged on the other side of the secondary riser 52 away from the first inner gate 53, and the upper right side of the cross runner 51 is connected to the lower part of the straight runner 2.
[0024] In this embodiment, the steering knuckle casting 4 includes a steering knuckle body 41, a positioning hole 42 is opened in the middle of the upper end of the steering knuckle body 41, and a plurality of mounting holes 43 are opened around the upper end of the steering knuckle body 41. Two ears 44 are arranged on the right side of the lower part of the outer surface of the steering knuckle body 41, and inner holes 45 are opened on the opposite surfaces of the two ears 44; the thickness of the two ears 44 is set to 12 mm, resulting in that the thickness of the two ears 44 is relatively thin and it is very easy to solidify quickly. The auxiliary riser 52 is located between the two ears 44, which is convenient for inputting molten iron into the lower right corner of the steering knuckle mold 3.
[0025] In this embodiment, the cross runner 51 and the exhaust channel 7 are both configured as L-shaped structures, and the interior of the cross runner 51 is connected to the interior of the sprue 2, so as to facilitate the diversion of molten iron from the sprue 2 to the cross runner 51. The sprue 2 is configured as a T-shaped structure; the interior of the first ingates 53 and the interior of the second ingates 54 are both connected to the interior of the knuckle mold 3, so that the two ears 44 at the lower right corner of the knuckle body 41 can always be in a high temperature state, thereby preventing the two ears 44 from solidifying too quickly.
[0026] It should be noted that the utility model is a steering knuckle casting mold. During use, the molten iron is first diverted and transported through the sprue 2, and the molten iron can be input into the steering knuckle mold 3 of the mold body 1, so that the entire steering knuckle casting 4 can be cast and formed through the steering knuckle mold 3. A part of the molten iron can enter the main riser 6 through the connecting channel 8, so that the molten iron flows into the steering knuckle mold 3 from the top, and another part of the molten iron in the sprue 2 is diverted through the cross runner 51, so that the molten iron is diverted through the auxiliary riser 52 to the first inner gate 53 and the second inner gate 54, and the main riser 6 and the auxiliary riser 52 are set, which can be used to discharge the air in the steering knuckle mold 3, impurities in the casting metal juice, etc. during casting, and are equipped with The exhaust channel 7 can be used for exhaust during casting, so that the molten iron can flow into the steering knuckle mold 3 from the bottom through the first inner gate 53 and the second inner gate 54. The molten iron can be respectively input into two thinner positions of the steering knuckle mold 3, so that the two ears 44 of the cast steering knuckle body 41 are always in a high temperature state to keep solidifying at the same time as other parts of the steering knuckle casting 4, thereby avoiding the occurrence of cementite. When the metallographic structure of the two ears 44 of the steering knuckle casting 4 is inspected, it can be ensured that the cementite of the two ears 44 is less than 3%, thereby effectively ensuring that the material is qualified, thereby improving the quality of the steering knuckle product, improving the yield of the steering knuckle product, and also improving the practicability of the steering knuckle casting mold.
[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A steering knuckle casting mold, comprising a mold body (1), characterized in that: A sprue (2) is provided at the right lower end of the mold body (1), a knuckle mold (3) is provided at the left lower end of the mold body (1), a knuckle casting (4) is cast in the knuckle mold (3), a secondary pouring branch (5) is provided between the lower part of the knuckle mold (3) and the lower part of the mold body (1), a main riser (6) is provided at the upper part of the knuckle mold (3), an exhaust channel (7) is provided at the left end of the main riser (6), and a connecting channel (8) is provided between the right end of the main riser (6) and the left end of the sprue (2); The auxiliary pouring branch (5) comprises a runner (51), a secondary riser (52) is arranged at the left part of the runner (51), a first inner gate (53) is arranged at the lower side of the secondary riser (52), a second inner gate (54) is arranged at the other side of the secondary riser (52) away from the first inner gate (53), and the upper side of the right part of the runner (51) is communicated with the lower part of the straight runner (2).
2. A steering knuckle casting mold according to claim 1, characterized in that: The steering knuckle casting (4) comprises a steering knuckle body (41), a positioning hole (42) is provided in the middle of the upper end of the steering knuckle body (41), a plurality of mounting holes (43) are provided around the upper end of the steering knuckle body (41), two supporting ears (44) are provided on the right side of the lower part of the outer surface of the steering knuckle body (41), and the opposite surfaces of the two supporting ears (44) are provided with inner holes (45).
3. A steering knuckle casting mold according to claim 2, characterized in that: The thickness of the two supporting ears (44) is set to 12 mm, and the auxiliary riser (52) is located between the two supporting ears (44).
4. A steering knuckle casting mold according to claim 1, characterized in that: The runner (51) and the exhaust channel (7) are both configured as L-shaped structures, and the interior of the runner (51) is communicated with the interior of the sprue (2), and the sprue (2) is configured as a T-shaped structure.
5. A steering knuckle casting mold according to claim 4, characterized in that: The interior of the first ingates (53) and the interior of the second ingates (54) are both in communication with the interior of the steering knuckle mold (3).