Knuckle mold closing device with high-precision positioning function

Abstract

The utility model relates to the technical field of knuckle molds, in particular to a knuckle mold closing device with a high-precision positioning function, which comprises a mold closing mechanism, the mold closing mechanism comprises a fixed mold, a connecting rod is arranged on one side of the fixed mold, one side of the fixed mold is fixedly connected with one end of the connecting rod, and the other side of the fixed mold is fixedly connected with the other end of the connecting rod. According to the steering knuckle mold closing device with the high-precision positioning function, when the lead screw rotates, the movable arm begins to change the angle and is finally presented in a horizontal form, and in the process, the rectangular frame connected with one end of the movable arm can move downwards on the inner side of the base, so that the steering knuckle mold closing device with the high-precision positioning function is formed. Due to the fact that the position of the rectangular frame is changed, the extrusion plate can exert external force on the bottom end of the locking rod due to the inclined face in the downward moving process, then the angle of the locking rod is changed, the top end of the locking rod can enter the concave plate in the changing process, and the fixed mold and the movable mold are structurally connected in a rapid mode.

Description

Technical Field

[0001] This utility model relates to the field of steering knuckle mold technology, specifically a steering knuckle mold closing device with high-precision positioning function. Background Technology

[0002] The steering knuckle is a core component of the automotive chassis system. Shaped like a ram's horn, it serves as a crucial link connecting the wheels, suspension, and steering system. It primarily consists of upper and lower forks, journals, and other structural elements, typically forged from medium carbon steel or alloy steel and strengthened through heat treatment to achieve high strength and toughness. During vehicle operation, the steering knuckle not only bears the weight of the body and wheels but also withstands complex loads from the road surface, including vertical forces, driving forces, braking forces, and lateral forces. Simultaneously, through its interaction with the steering tie rod and kingpin, it translates the driver's steering wheel movements into wheel steering angles, thus enabling vehicle steering. Its performance directly impacts vehicle handling stability and driving safety, serving as the fundamental guarantee for a car's agile steering and reliable load-bearing capacity.

[0003] In existing technologies, the manufacturing of steering knuckles requires the use of specific molds for forming. Molds allow for precise shaping and performance enhancement of the steering knuckle. In terms of shaping, the mold provides a spatial carrier for the liquid or semi-solid metal raw material. Regarding performance enhancement, the temperature control and cooling system design of the mold can influence the crystallization process of the metal raw material. Proper mold temperature control can refine the grain structure, improving the strength and toughness of the steering knuckle.

[0004] However, during the molding process, it is usually necessary to close the fixed mold and the moving mold. The common method for closing the mold is to use bolts to connect the moving mold and the fixed mold. However, when using bolts for mold closing, the bolts need to be tightened and loosened one by one with tools such as wrenches. The mold closing and disassembly process is time-consuming, which seriously restricts the production rhythm and makes it difficult to meet the efficiency requirements of large-scale production of automotive parts. At the same time, the connection accuracy and stability are poor, and it is difficult to keep the tightening force of the bolts consistent. This can easily lead to uneven stress on the mold, causing deviations in the mold gap and resulting in the steering knuckle dimensions being out of tolerance. To address this, we propose a steering knuckle mold closing device with high-precision positioning function. Utility Model Content

[0005] One of the technical problems to be solved by this application is: after the fixed mold and the moving mold are closed, a structural connection is quickly established between the fixed molds.

[0006] To address the aforementioned technical problems, this application provides a steering knuckle mold closing device with high-precision positioning function, comprising a mold closing mechanism, an auxiliary mechanism disposed on the inner side of the mold closing mechanism, the mold closing mechanism including a fixed mold, a connecting rod disposed on one side of the fixed mold, one side of the fixed mold being fixedly connected to one end of the connecting rod, a locking rod disposed on the other end of the connecting rod, the other end of the connecting rod being rotatably connected to the inner wall of the middle end of the locking rod, a concave plate disposed at the top end of the locking rod, the top end of the locking rod being rotatably engaged with the inner side of the concave plate, and an extrusion plate disposed at the bottom end of the locking rod, the bottom end of the locking rod being slidably contacted with the inclined surface of the extrusion plate.

[0007] In some embodiments, the auxiliary mechanism includes a fixed frame, one end of which is provided with a roller, and the other end of the fixed frame is rotatably connected to the middle end of the roller. A base is provided on the outer side of the roller, and the outer side of the roller is rotatably in contact with the inner side of the base. A rectangular frame is provided on the other end of the fixed frame, and the other end of the fixed frame is fixedly connected to one side of the rectangular frame.

[0008] In some embodiments, a side plate is provided on one side of the locking rod, and one side of the locking rod is fixedly connected to one end of the side plate. A spring is provided at the other end of the side plate, and the other end of the side plate is fixedly connected to one end of the spring. The other end of the spring is fixedly connected to one side of the fixed mold.

[0009] In some embodiments, the bottom side of the fixed mold is fixedly connected to the top side of the base, a sub-plate is provided at one end of the base, and one end of the base is fixedly connected to one end of the sub-plate. A disk is provided on the inner side of one end of the sub-plate, and the inner side of one end of the sub-plate is rotatably connected to one side of the disk.

[0010] In some embodiments, a lead screw is provided on the inner wall of the first disc, and the inner wall of the first disc is rotatably connected to the outer side of the lead screw. A second disc is provided at the bottom end of the lead screw, and the bottom end of the lead screw is rotatably connected to the center of the second disc. A movable arm is provided on one side of the second disc, and one side of the second disc is rotatably connected to the inner side of one end of the movable arm.

[0011] In some embodiments, the middle end of the movable arm is rotatably connected to one end of the bottom side of the base, and one end of the movable arm is rotatably connected to the middle end of one end of the rectangular frame.

[0012] In some embodiments, the top side of the rectangular frame is fixedly connected to one end of the bottom side of the extrusion plate, and one end of the bottom side of the extrusion plate is slidably connected to the inner wall of the base.

[0013] In some embodiments, a positioning frame is provided on the inner wall of the top of the fixed mold, and the inner wall of the top of the fixed mold is in contact with the outer side of the positioning frame. A moving mold is provided on the top of the positioning frame, and the top of the positioning frame is fixedly connected to the bottom side of the moving mold. The bottom side of the moving mold is in contact with the top of the fixed mold.

[0014] This utility model has at least the following beneficial effects:

[0015] 1. When the lead screw rotates, the movable arm begins to change angle and eventually appears in a horizontal position. During this process, the rectangular frame connected to one end of the movable arm will move down inside the base. As the position of the rectangular frame changes, it will naturally drive the extrusion plate to move down synchronously. During the downward movement of the extrusion plate, due to the slope, it will exert an external force on the bottom end of the locking rod, thereby causing the locking rod to change angle. During the change, the top end of the locking rod will enter the concave plate and form an interlocking form with the concave plate, so as to quickly connect the fixed mold and the moving mold.

[0016] 2. Reposition the rectangular frame so that the extrusion plate no longer exerts external force on the bottom of the locking rod. Furthermore, since a side plate is designed on one side of the locking rod, and one end of the side plate is connected to a spring piece, and the other end of the spring piece is fixedly connected to one side of the fixed mold, the spring piece will use its own retraction property to reset the locking rod, so that the top end is no longer located in the concave plate, thereby releasing the structural connection between the fixed mold and the moving mold. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a side view of the mold closing mechanism component of this utility model;

[0019] Figure 3 This is a schematic diagram of some components of the mold closing mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the disassembled structure of the mold closing mechanism components of this utility model;

[0021] Figure 5 This is an enlarged structural schematic diagram of the mold closing mechanism component of this utility model;

[0022] In the diagram: 1. Mold closing mechanism; 11. Fixed mold; 12. Connecting rod; 13. Locking rod; 14. Concave plate; 15. Moving mold; 16. Extrusion plate; 17. Side plate; 18. Spring piece; 19. Sub-plate; 110. Disc one; 111. Lead screw; 112. Movable arm; 113. Disc two; 114. Rectangular frame; 115. Positioning frame; 116. Base;

[0023] 2. Auxiliary mechanism; 21. Fixing frame; 22. Roller. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figure 1-5 This utility model provides a technical solution: a steering knuckle mold closing device with high-precision positioning function, including a mold closing mechanism 1, an auxiliary mechanism 2 provided on the inner side of the mold closing mechanism 1, the mold closing mechanism 1 including a fixed mold 11, a connecting rod 12 provided on one side of the fixed mold 11, one side of the fixed mold 11 being fixedly connected to one end of the connecting rod 12, a locking rod 13 provided on the other end of the connecting rod 12, the other end of the connecting rod 12 being rotatably connected to the inner wall of the middle end of the locking rod 13, a concave plate 14 provided on the top end of the locking rod 13, the top end of the locking rod 13 being rotatably engaged with the inner side of the concave plate 14. A pressing plate 16 is provided at the bottom end of the locking rod 13, and the bottom end of the locking rod 13 slides in contact with the inclined surface of the pressing plate 16. A side plate 17 is provided on one side of the locking rod 13, and one side of the locking rod 13 is fixedly connected to one end of the side plate 17. A spring piece 18 is provided at the other end of the side plate 17, and the other end of the side plate 17 is fixedly connected to one end of the spring piece 18. The other end of the spring piece 18 is fixedly connected to one side of the fixed mold 11. The bottom side of the fixed mold 11 is fixedly connected to the top side of the base 116. A sub-plate 19 is provided at one end of the base 116, and one end of the base 116 is fixedly connected to one end of the sub-plate 19. A disc 110 is provided on the inner side of one end of the sub-plate 19. The inner side of one end of the sub-plate 19 is rotatably connected to one side of the disc 110. A lead screw 111 is provided on the inner wall of the disc 110. The inner wall of the disc 110 is threadedly rotatably connected to the outer side of the lead screw 111. A disc 113 is provided at the bottom end of the lead screw 111. The bottom end of the lead screw 111 is rotatably connected to the center of the disc 113. A movable arm 112 is provided on one side of the disc 113. One side of the disc 113 is rotatably connected to the inner side of one end of the movable arm 112. The middle end of the movable arm 112 is connected to the base 11. One end of the bottom side of the 6 is rotatably connected, one end of the movable arm 112 is rotatably connected to the middle end of the rectangular frame 114, the top side of the rectangular frame 114 is fixedly connected to one end of the bottom side of the extrusion plate 16, one end of the bottom side of the extrusion plate 16 is slidably connected to the inner wall of the base 116, a positioning frame 115 is provided on the top inner wall of the fixed mold 11, the top inner wall of the fixed mold 11 is in contact with the outer side of the positioning frame 115, a moving mold 15 is provided on the top of the positioning frame 115, the top of the positioning frame 115 is fixedly connected to the bottom side of the moving mold 15, and the bottom side of the moving mold 15 is in contact with the top of the fixed mold 11.

[0026] When using this type of steering knuckle mold closing device with high-precision positioning function, firstly, a fixed mold 11 is designed, with connecting rods 12 designed around the fixed mold 11. Each connecting rod 12 is connected to the same components. A locking rod 13 is rotatably connected to one end of the connecting rod 12 and is located on the inner wall of the middle end of the locking rod 13. When it is necessary to close the fixed mold 11 and the moving mold 15, a positioning frame 115 is designed on the bottom side of the moving mold 15. The positioning frame 115 corresponds to the concave hole on the fixed mold 11. Then, by fitting the moving mold 15 and the fixed mold 11 together and placing the positioning frame 115 in the fixed mold 11, the initial positioning of the fixed mold 11 and the moving mold 15 can be completed. Since concave plates 14 are installed around the moving mold 15, after the moving mold 15 and the fixed mold 11 are fitted together, the concave plates 14 will vertically correspond to the position of the locking rod 13.

[0027] A sub-plate 19 is designed at one end of the base 116. A disc 110 is installed on the inner side of one end of the sub-plate 19. The two are rotatably connected. A lead screw 111 is designed on the inner wall of the disc 110. The bottom end of the lead screw 111 is connected to a disc 113. The disc 113 is rotatably connected to the inner wall of one end of the movable arm 112. The middle end of the movable arm 112 is rotatably connected to the bottom end of the base 116. Before being subjected to external force, the movable arm 112 is in an inclined state. When the lead screw 111 rotates, the movable arm 112 begins to change angle and eventually becomes horizontal. During this process, The rectangular frame 114 connected to one end of the movable arm 112 will move down inside the base 116. As the position of the rectangular frame 114 changes, it will naturally drive the extrusion plate 16 to move down synchronously. During the downward movement of the extrusion plate 16, the inclined surface will cause an external force to the bottom end of the locking rod 13, which will cause the locking rod 13 to change angle. During the change, the top end of the locking rod 13 will enter the concave plate 14 and form an interlocking form with the concave plate 14. This allows the fixed mold 11 and the moving mold 15 to have a stable state after the mold is closed. At the same time, this method can quickly connect the fixed mold 11 and the moving mold 15.

[0028] When it is necessary to separate the fixed mold 11 from the moving mold 15, the position of the rectangular frame 114 is returned to its original position so that the extrusion plate 16 no longer exerts external force on the bottom end of the locking rod 13. Furthermore, since a side plate 17 is designed on one side of the locking rod 13, and one end of the side plate 17 is connected to a spring piece 18, and the other end of the spring piece 18 is fixedly connected to one side of the fixed mold 11, the spring piece 18 will use its own retraction property to reset the locking rod 13, so that the top end is no longer located in the concave plate 14, thereby releasing the structural connection between the fixed mold 11 and the moving mold 15. Subsequently, the object in the fixed mold 11 can be removed.

[0029] Example 2: Please refer to Figure 3The auxiliary mechanism 2 includes a fixed frame 21. One end of the fixed frame 21 is provided with a roller 22, which is rotatably connected to the middle of the roller 22. A base 116 is provided on the outer side of the roller 22, which is rotatably in contact with the inner side of the base 116. A rectangular frame 114 is provided on the other end of the fixed frame 21, which is fixedly connected to one side of the rectangular frame 114.

[0030] A fixed frame 21 is designed around the rectangular frame 114, and a roller 22 is installed at one end of each fixed frame 21. The roller 22 contacts the inner side of the base 116. This rolling contact design between the roller 22 and the inner side of the base 116 when the rectangular frame 114 moves transforms traditional sliding friction into rolling friction. This makes the movement of the rectangular frame 114 under the drive of the lead screw 111 smoother and significantly reduces energy loss during transmission. At the same time, the rollers 22 on the four fixed frames 21 form a stable four-point support structure, which plays a precise guiding role during the movement of the rectangular frame 114. Even when moving at high speed or under large lateral forces, the rollers 22 can ensure that the rectangular frame 114 runs smoothly along the preset trajectory.

[0031] Please see Figures 1-5 When the fixed mold 11 and the moving mold 15 are closed, a positioning frame 115 is designed on the bottom side of the moving mold 15. The positioning frame 115 corresponds to the recessed hole on the fixed mold 11. Then, by fitting the moving mold 15 and the fixed mold 11 together and placing the positioning frame 115 in the fixed mold 11, the initial positioning of the fixed mold 11 and the moving mold 15 can be completed. Since there are recessed plates 14 installed around the moving mold 15, after the moving mold 15 and the fixed mold 11 are fitted together, the recessed plates 14 will vertically correspond to the position of the locking rod 13. Subsequently, the lead screw 111 is rotated, and the movable arm 112 begins to change angle. Finally, it is presented in a horizontal form. During this process, the rectangular frame 114 connected to one end of the movable arm 112 will move down inside the base 116. As the position of the rectangular frame 114 changes, it will naturally drive the extrusion plate 16 to move down synchronously. During the downward movement of the extrusion plate 16, due to the slope, it will exert an external force on the bottom end of the locking rod 13, thereby causing the locking rod 13 to change angle. During the change, the top end of the locking rod 13 will enter the concave plate 14 and form an interlocking form with the concave plate 14, so that the fixed mold 11 and the moving mold 15 can have a stable state after the mold is closed.

[0032] A fixing frame 21 is designed around the rectangular frame 114, and a roller 22 is installed at one end of each fixing frame 21. The roller 22 contacts the inner side of the base 116. When the rectangular frame 114 moves, the rolling contact design between the roller 22 and the inner side of the base 116 transforms the traditional sliding friction into rolling friction. This makes the rectangular frame 114 move more smoothly under the drive of the lead screw 111, and the energy loss in the transmission process is greatly reduced.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A steering knuckle mold closing device with high-precision positioning function, characterized in that: The device includes a mold closing mechanism (1), and an auxiliary mechanism (2) is provided on the inner side of the mold closing mechanism (1). The mold closing mechanism (1) includes a fixed mold (11). A connecting rod (12) is provided on one side of the fixed mold (11). One side of the fixed mold (11) is fixedly connected to one end of the connecting rod (12). A locking rod (13) is provided on the other end of the connecting rod (12). The other end of the connecting rod (12) is rotatably connected to the inner wall of the middle end of the locking rod (13). A concave plate (14) is provided at the top of the locking rod (13). The top of the locking rod (13) is rotatably engaged with the inner side of the concave plate (14). An extrusion plate (16) is provided at the bottom of the locking rod (13). The bottom of the locking rod (13) is slidably contacted with the inclined surface of the extrusion plate (16).

2. The steering knuckle mold closing device with high-precision positioning function according to claim 1, characterized in that: The auxiliary mechanism (2) includes a fixed frame (21), one end of which is provided with a roller (22), one end of which is rotatably connected to the middle end of the roller (22), a base (116) is provided on the outer side of the roller (22), the outer side of the roller (22) is rotatably contacted with the inner side of the base (116), and a rectangular frame (114) is provided on the other end of the fixed frame (21), the other end of which is fixedly connected to one side of the rectangular frame (114).

3. The steering knuckle mold closing device with high-precision positioning function according to claim 2, characterized in that: A side plate (17) is provided on one side of the locking rod (13). One side of the locking rod (13) is fixedly connected to one end of the side plate (17). A spring piece (18) is provided on the other end of the side plate (17). The other end of the side plate (17) is fixedly connected to one end of the spring piece (18). The other end of the spring piece (18) is fixedly connected to one side of the fixed mold (11).

4. The steering knuckle mold closing device with high-precision positioning function according to claim 3, characterized in that: The bottom side of the fixed mold (11) is fixedly connected to the top side of the base (116). A sub-plate (19) is provided at one end of the base (116). One end of the base (116) is fixedly connected to one end of the sub-plate (19). A disk (110) is provided on the inner side of one end of the sub-plate (19). The inner side of one end of the sub-plate (19) is rotatably connected to one side of the disk (110).

5. The steering knuckle mold closing device with high-precision positioning function according to claim 4, characterized in that: The inner wall of the first disc (110) is provided with a lead screw (111), and the inner wall of the first disc (110) is rotatably connected to the outer side of the lead screw (111). The bottom end of the lead screw (111) is provided with a second disc (113), and the bottom end of the lead screw (111) is rotatably connected to the center of the second disc (113). A movable arm (112) is provided on one side of the second disc (113), and one side of the second disc (113) is rotatably connected to the inner side of one end of the movable arm (112).

6. The steering knuckle mold closing device with high-precision positioning function according to claim 5, characterized in that: The middle end of the movable arm (112) is rotatably connected to one end of the bottom side of the base (116), and one end of the movable arm (112) is rotatably connected to the middle end of the rectangular frame (114).

7. The steering knuckle mold closing device with high-precision positioning function according to claim 6, characterized in that: The top side of the rectangular frame (114) is fixedly connected to one end of the bottom side of the extrusion plate (16), and one end of the bottom side of the extrusion plate (16) is slidably connected to the inner wall of the base (116).

8. The steering knuckle mold closing device with high-precision positioning function according to claim 7, characterized in that: The top inner wall of the fixed mold (11) is provided with a positioning frame (115), the top inner wall of the fixed mold (11) is in contact with the outer side of the positioning frame (115), the top of the positioning frame (115) is provided with a moving mold (15), the top of the positioning frame (115) is fixedly connected with the bottom side of the moving mold (15), and the bottom side of the moving mold (15) is in contact with the top of the fixed mold (11).

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