A vehicle suspension arm forming mechanism and mold

Abstract

The present invention discloses a vehicle suspension arm forming mechanism and a mold, wherein the forming mechanism includes at least one pair of first sliders and at least one pair of second sliders, each first slider is slidably matched with the corresponding second slider, and the second slider is located on the inner side of the first slider, the combination of the first slider and the second slider is used to form the lip on the ball bowl, the shoulder pull rod on the second slider is slidably matched with the first slider, and when the mold is opened, the outward movement of the first slider drives the second slider to move away from the ball bowl, and the shoulder pull rod is pressed against the first slider to drive the second slider to move outward synchronously. The present invention provides a vehicle suspension arm forming mechanism, which realizes the precise forming of the lip of the ball bowl through the first slider and the second slider that are slidably matched, avoids damage to the inner surface, ensures smooth demoulding and accurate lip size, and improves the structural stability and functional reliability of the ball pin.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts molds, and more specifically to a vehicle suspension arm molding mechanism and a mold. Background Art

[0002] In modern vehicle suspension systems, the ball stud is one of the key mechanical components. Figure 1 The figure shows the structure of the ball stud, which includes a spherical pipe, a spherical joint and a ball bowl made by injection molding. The ball bowl needs to provide stable support for the spherical joint in terms of structural design, and at the same time, it can be dustproof, waterproof and extend the service life by cooperating with the dust cover.

[0003] Specifically, the lower edge of the bowl is designed with a lip to fix one end of the dust cover, while the other end of the dust cover is fitted over the middle of the ball joint to achieve a sealing effect. However, the lip adopts an inverted structure to ensure a stable connection with the dust cover. This structural design places high demands on the injection molding process. Due to the high requirements on the inner surface of the lip, forced removal can easily cause damage or deformation, affecting its functional reliability.

[0004] How to design a ball bowl with a lip to facilitate demoulding and ensure the quality of the inner surface has become a technical problem that needs to be solved urgently in the ball stud manufacturing process. Summary of the invention

[0005] The present invention aims to solve one of the technical problems in the related art to a certain extent. To this end, the present invention proposes a vehicle suspension arm forming mechanism, which realizes the precise forming of the lip of the ball bowl through a first slider and a second slider that slide in an oblique manner, avoids damage to the inner surface, ensures smooth demoulding and accurate lip size, and improves the structural stability and functional reliability of the ball pin.

[0006] The present invention also provides a mold having the vehicle suspension arm molding mechanism.

[0007] The technical solution adopted by the present invention is: to provide a vehicle suspension arm forming mechanism, including at least one pair of first sliders and at least one pair of second sliders, each first slider is obliquely slidably matched with the corresponding second slider, and the second slider is located on the inner side of the first slider, the combination of the first slider and the second slider is used to form the lip on the ball bowl, the shoulder pull rod on the second slider is obliquely slidably matched with the first slider, and when the mold is opened, the outward movement of the first slider drives the second slider to move away from the ball bowl, and the second slider is driven to move outward synchronously with the help of the shoulder pull rod and the first slider.

[0008] With the above structure, the lip forming process of the bowl can be carried out smoothly, and the quality of the inner surface is ensured. Due to the oblique sliding cooperation between the first slider and the second slider, the second slider can accurately detach from the inner side of the lip, avoiding the problem of inner surface damage or deformation that may occur in the traditional forming process. In the first stage of mold opening, the outward movement of the first slider drives the second slider to move away from the bowl, ensuring the demolding space on the inner side of the lip and preventing excessive resistance or friction during the forming process. The abutment between the shoulder pull rod and the first slider enables the second slider to move outward synchronously with the first slider, which ensures smooth demolding while avoiding mutual blocking or uncoordinated movement between the sliders.

[0009] In addition, in the second stage of mold opening, the end position of the second slider is lower than the lip, which ensures the accuracy of the shape and size of the lip. As the first slider continues to move outward, the entire molding process is completed, thereby ensuring the precise molding of the lip of the ball bowl, and the inner surface remains high quality to meet the sealing requirements of the dust cover. Through the above technical solution, not only the operating efficiency of the mold is improved, but also the structural stability and functional reliability of the key components of the ball stud are ensured.

[0010] According to an embodiment of the present invention, one of the first sliders is connected to a second oil cylinder to achieve more precise movement control. The second oil cylinder is used to provide additional driving force to ensure that the first slider can move more stably during the molding process.

[0011] According to an embodiment of the present invention, in the two pairs of the first sliding blocks, the two first sliding blocks located on the inner side are connected to the moving end of the same first oil cylinder through a connecting plate.

[0012] According to an embodiment of the present invention, a slider block is installed on the inner side of the first slider, and the lower arm body rests on the slider block when the mold is closed, so as to achieve a more stable support and a precise molding process. Since the slider block is easily worn due to long-term contact with the lower arm body, the slider block adopts a replaceable design and can be easily replaced, thereby extending the service life of the entire mold; and / or;

[0013] The first slider is equipped with a slider insert, which is tightly pressed against the spherical tube when the mold is closed. The replaceability of the slider insert enables the mold to maintain high precision after long-term use.

[0014] According to an embodiment of the present invention, the movable end of the first oil cylinder is fixedly connected to the connecting plate, the connecting plate is symmetrically provided with two inclined grooves, and one end of the first sliding block is slidably matched with the inclined grooves.

[0015] According to an embodiment of the present invention, the shoulder pull rod sleeve is provided with a first spring, and the first spring is located between the first slider and the second slider.

[0016] According to one embodiment of the present invention, an annular groove is provided on the outer periphery of the spherical joint, and the inner end of the shoulder pull rod is an abutment portion adapted to the annular groove. When the mold is closed, the abutment portion is inserted into the annular groove to limit the axial movement of the spherical joint. This design ensures the stable positioning of the spherical joint, avoids the axial deviation that may occur during the molding process, and ensures the high-precision molding of the mold and the reliability of parts.

[0017] According to an embodiment of the present invention, the forming mechanism further comprises a guide rod, the second sliding block is provided with a guide groove, and the inner end of the guide rod is slidably matched with the guide groove.

[0018] According to an embodiment of the present invention, the shoulder pull rod sleeve is provided with a second spring, and the second spring is located between the shoulder of the shoulder pull rod and the first slider, and the second spring has an elastic tendency to make the abutment part disengage from the annular groove. When the mold is opened or closed, the elastic force of the second spring can push the abutment part to disengage from the annular groove, thereby releasing the axial restriction of the spherical joint and ensuring the smooth progress of the mold separation process. This design effectively reduces the friction and resistance of the mold during operation, improves the demoulding efficiency, and protects the service life of the mold and parts.

[0019] According to one embodiment of the present invention, it also includes a fixed mold plate with a shovel base. When the mold is closed, the shovel base is pressed against the outer side of the first slider and against the end of the shoulder pull rod away from the abutment portion. Through the supporting effect of the shovel base, the stable positioning of the first slider and the shoulder pull rod is ensured, and excessive displacement or uneven force on the slider is prevented.

[0020] According to one embodiment of the present invention, the molding mechanism is used in conjunction with a floating compensation mechanism, which includes a floating sealant insert, which is used to abut against the upper end of the spherical pipe when the mold is closed; since the flatness of the two ends of the spherical pipe can be guaranteed by machining, but there is a tolerance in its axial length, when the spherical pipe is inserted into the mold, the tolerance may cause flashing. Therefore, a floating sealant insert is provided to compensate for the tolerance, and its position is adjusted by floating, thereby effectively eliminating flashing and ensuring the accuracy of the molding process and the quality of the parts.

[0021] According to one embodiment of the present invention, the floating compensation mechanism further includes an elastic glue rod, and the elastic glue rod has an elastic tendency to make the floating glue insert tightly abut against the spherical connecting pipe. During the mold closing process, the elastic glue rod pushes the floating glue insert to tightly abut against the upper end of the spherical connecting pipe through its elastic force, thereby compensating for the displacement caused by the tolerance, ensuring that the floating glue insert can be accurately aligned and the flash is eliminated; and / or

[0022] The floating compensation mechanism includes a limit block and a movable block. The movable block is located inside the limit block and slides obliquely with the limit block. The movable block is tightly against the notch on the floating sealant insert. The movable block and the limit block together form an inclined wedge structure. When the mold is closed, the sealant end of the lower end of the floating sealant insert first contacts closely with the upper end of the spherical pipe. Then, through the action of the inclined wedge structure, the relative movement between the movable block and the limit block causes the floating sealant insert to gradually move upward, thereby achieving precise compensation and adjustment. This design effectively compensates for the axial tolerance of the spherical pipe, ensures the sealing and precision during the molding process, avoids the flashing problem, and improves the stability and reliability of the mold operation.

[0023] A mould comprises any one of the above-mentioned vehicle suspension arm forming mechanisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a half-section view of the ball stud in the embodiment of the present invention.

[0026] Figure 2 It is a three-dimensional diagram of the movable mold assembly in an embodiment of the present invention.

[0027] Figure 3 For along Figure 2 Section view along line AA.

[0028] Figure 4 for Figure 3 A partial enlarged view of point B in the middle.

[0029] Figure 5 It is a stereoscopic view of the fixed mold assembly in an embodiment of the present invention.

[0030] Figure 6 It is a partial structural schematic diagram of the movable mold assembly in an embodiment of the present invention.

[0031] Figure 7 Schematic diagram of the structure of the forming mechanism in the embodiment of the present invention.

[0032] Figure 8 It is a three-dimensional diagram of the forming mechanism in the embodiment of the present invention.

[0033] Fig. 9 It is a cross-sectional view of the forming mechanism in the embodiment of the present invention.

[0034] Fig.10 It is a cross-sectional view of the molding mechanism and the floating sealing insert in an embodiment of the present invention.

[0035] Fig.11 It is an exploded view of the forming mechanism in the embodiment of the present invention.

[0036] Fig.12 It is a schematic structural diagram of the forming mechanism and part of the lower swing arm body in an embodiment of the present invention.

[0037] Fig.13 1 is an exploded view of the first slider, the slider insert and the slider insert in the embodiment of the present invention.

[0038] Fig.14 It is a stereoscopic diagram of the second sliding block in the embodiment of the present invention.

[0039] Fig.15 This is a three-dimensional diagram of the molding mechanism in the embodiment of the present invention after removing the first sliding block on one side.

[0040] Fig.16 It is a three-dimensional diagram of the floating compensation mechanism in an embodiment of the present invention.

[0041] Fig.17 1 is an exploded view of the floating compensation mechanism in an embodiment of the present invention.

[0042] Fig.18 It is a cross-sectional view of the floating compensation mechanism in an embodiment of the present invention.

[0043] Fig.19 It is a cross-sectional view of a molding mechanism and a floating sealing insert in another embodiment of the present invention.

[0044] Fig. 20 It is a cross-sectional view of a molding mechanism and a floating sealing insert during a mold opening process in another embodiment of the present invention.

[0045] Description of the numbers in the figure:

[0046] 10. Ball stud; 20. Moving mold assembly; 30. Fixed mold assembly; 40. Floating compensation mechanism;

[0047] 11. Ball pipe; 12. Ball joint; 13. Ball bowl; 14. Lower arm body;

[0048] 12a, sphere; 12b, annular groove;

[0049] 13a, lips;

[0050] 21. Moving template; 22. Top plate; 23. Top rod; 24. First slider; 25. Second slider; 26. Shoulder pull rod; 27. First oil cylinder; 28. Second oil cylinder; 29. ​​First spring; 210. Slider insert; 211. Slider insert; 212. Guide rod; 213. Second spring;

[0051] 24a, oblique guide groove; 24b, matching groove; 24c, slide groove;

[0052] 25a, inclined guide block; 25b, guide groove;

[0053] 26a, abutment portion; 26b, shoulder portion;

[0054] 27a, connecting plate; 27b, chute;

[0055] 210a, slider portion;

[0056] 31. Fix the template; 32. Shovel the foundation;

[0057] 41. Floating sealing insert; 42. Limit block; 43. Movable block; 44. Elastic glue stick;

[0058] 41a, inner hole; 41b, notch; 41c, inclined surface; 41d, sealing end. DETAILED DESCRIPTION

[0059] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention. Embodiment 1

[0060] like Figure 1 As shown, the ball pin 10 in this embodiment includes a spherical pipe 11, a spherical joint 12 and a ball bowl 13, wherein the spherical pipe 11 is pre-fixed on the lower arm body 14 by welding. The spherical pipe 11 and the spherical joint 12 are both embedded in the mold as inserts, the ball 12a at the upper end of the spherical joint 12 is placed inside the spherical pipe 11, and the ball bowl 13 is formed by the mold, and the ball bowl 13 wraps the upper and lower ends of the spherical pipe 11 to ensure the stability and sealing of the structure. The outer periphery of the spherical joint 12 is provided with a circle of annular grooves 12b, and the lower end of the ball bowl 13 is provided with a lip 13a. When the ball pin 10 is connected to a dust cover, the dust cover is mounted on the outer periphery of the spherical joint 12, and the lip 13a overlaps with the dust cover to achieve a sealed connection to prevent dust and moisture from entering, thereby improving the dustproof and waterproof performance and service life of the ball pin 10.

[0061] Combination Figure 2-18As shown, in this embodiment, a vehicle suspension arm forming mechanism is disclosed, including at least one pair of first sliders 24 and at least one pair of second sliders 25, each first slider 24 is slidably matched with the corresponding second slider 25, and the second slider 25 is located on the inner side of the first slider 24, and the combination of the first slider 24 and the second slider 25 is used to form the lip 13a on the ball bowl 13, and the shoulder pull rod 26 on the second slider 25 is slidably matched with the first slider 24. When the mold is opened, the outward movement of the first slider 24 drives the second slider 25 to move away from the ball bowl 13, and the second slider 25 is driven to move outward synchronously with the help of the shoulder pull rod 26 and the first slider 24.

[0062] Furthermore, in this embodiment, both the first slider 24 and the second slider 25 are half structures, that is, the combination of the two first sliders 24 is used to form the outer surface of the lip 13a, and the combination of the two second sliders 25 is used to form the inner surface of the lip 13a. Since the first slider 24 and the second slider 25 are slidably matched, when the mold is opened, the first slider 24 moves outward in advance to drive the second slider 25 to move downward, and then the first slider 24 and the second slider 25 are moved synchronously through the shoulder pull rod 26 to complete the demoulding.

[0063] Furthermore, combined with Figure 6-7 As shown, the molding structure in this embodiment is applied to a one-out-two mold, which includes two pairs of first sliders 24 and two pairs of second sliders 25. Among them, the first slider 24 located on the outside of each pair of first sliders 24 is driven by the second oil cylinder 28 to achieve more precise movement control; the two first sliders 24 located on the inside are connected to the moving end of the same first oil cylinder 27 through the connecting plate 27a to ensure synchronous action and stable cooperation.

[0064] Furthermore, combined with Figure 7 As shown, the moving end of the first oil cylinder 27 is fixedly connected to the connecting plate 27a, and two inclined grooves 27b are symmetrically provided on the connecting plate 27a. One end of the first slider 24 can slide in cooperation with the inclined groove 27b. Through this design, when the first oil cylinder 27 pushes the connecting plate 27a to move, the inclined groove 27b on the connecting plate 27a guides the first slider 24 to slide along the set track, ensuring the accurate oblique movement of the first slider 24, thereby driving the second slider 25 to cooperate with it to complete the molding process of the lip 13a of the bowl 13. This structure not only improves the coordination and accuracy of the mold action, but also ensures the stability and efficiency during the molding process.

[0065] Furthermore, combined with Fig.10As shown, the first slider 24 is provided with a matching groove 24b, and the shoulder 26b of the shoulder pull rod 26 is adapted to the matching groove 24b. During the operation of the mold, when the first slider 24 and the second slider 25 move relative to each other, the shoulder pull rod 26 moves synchronously with the second slider 25, and the shoulder pull rod 26 gradually moves relative to the first slider 24 until its shoulder 26b is tightly abutted against the bottom of the matching groove 24b, forming a reliable limit support. After that, the second slider 25 moves synchronously with the first slider 24 to ensure the movement coordination and accuracy of the two during the molding process.

[0066] Furthermore, in this embodiment, the first slider 24 is provided with an oblique guide groove 24a and a slide groove 24c, and the second slider 25 has an oblique guide block 25a that slides obliquely with the oblique guide groove 24a, so as to achieve precise guidance and relative sliding between the two sliders. The slider insert 210 has a slider portion 210a, and the slider portion 210a slides with the slide groove 24c to ensure that the insert maintains stable positioning accuracy during the sliding process. In addition, the slider insert 210 is installed on the first slider 24 by fasteners, which is convenient for rapid replacement after wear, further improving the maintenance convenience and service life of the mold, while ensuring the accuracy and stability during the molding process.

[0067] Specifically, combined Figure 11-13 As shown, a slider block 210 is installed on the inner side of the first slider 24. When the mold is closed, the lower swing arm body 14 rests on the slider block 210 to ensure stable support and positioning of the lower swing arm. A slider block 211 is also installed on the first slider 24. When the mold is closed, the slider block 211 is tightly in contact with the spherical pipe 11 to provide reliable positioning and support. Both the slider block 210 and the slider block 211 are replaceable. When they are worn after long-term use, they can be easily replaced, thereby ensuring that the mold can still maintain high precision and molding quality under long-term and high-frequency use, extending the service life of the mold and reducing maintenance costs. The shoulder pull rod 26 is provided with a first spring 29, and the first spring 29 is located between the first slider 24 and the second slider 25.

[0068] Specifically, combined Figure 19-20As shown, in another embodiment, the outer periphery of the spherical joint 12 is provided with an annular groove 12b, and the inner end of the shoulder pull rod 26 is an abutment portion 26a adapted to the annular groove 12b. When the mold is closed, the abutment portion 26a is inserted into the annular groove 12b to limit the axial movement of the spherical joint 12. The molding mechanism also includes a guide rod 212, and the second slider 25 is provided with a guide groove 25b. The inner end of the guide rod 212 can slide with the guide groove 25b. The shoulder pull rod 26 is sleeved with a second spring 213, and the second spring 213 is located between the shoulder 26b of the shoulder pull rod 26 and the first slider 24. The second spring 213 has an elastic tendency to make the abutment portion 26a disengage from the annular groove 12b. When the mold is opened and closed, the elastic force of the second spring 213 can push the abutment portion 26a to disengage from the annular groove 12b, thereby releasing the axial restriction of the spherical joint 12 and ensuring the smooth progress of the mold separation process. This design effectively reduces the friction and resistance of the mold during operation, improves the demoulding efficiency, and protects the service life of the mold and parts. It also includes a fixed mold plate 31 with a shovel base 32. When the mold is closed, the shovel base 32 is pressed against the outer side of the first slider 24 and against the end of the shoulder pull rod 26 away from the abutment portion 26a; the support of the shovel base 32 ensures the stable positioning of the first slider 24 and the shoulder pull rod 26, preventing excessive displacement or uneven force on the slider.

[0069] Specifically, combined Figure 16-18 As shown, in this embodiment, the molding mechanism is used in conjunction with a floating compensation mechanism 40, and the floating compensation mechanism 40 includes a floating sealant insert 41, and the floating sealant insert 41 is used to abut against the upper end of the spherical connecting pipe 11 during mold closing. The floating compensation mechanism 40 also includes an elastic glue rod 44, and the elastic glue rod 44 has an elastic tendency to make the floating sealant insert 41 abut against the upper end of the spherical connecting pipe 11. During the mold closing process, the elastic glue rod 44 pushes the floating sealant insert 41 to abut against the upper end of the spherical connecting pipe 11 through its elastic force, thereby compensating for the displacement caused by the tolerance, ensuring that the floating sealant insert 41 can be accurately aligned and eliminate the flash; the floating compensation mechanism 40 includes a limit block 42 and a movable block 43, and the movable block 44 3 is located inside the limit block 42 and is slidably matched with the limit block 42, and the movable block 43 is tightly against the notch 41b on the floating sealant insert 41; the movable block 43 and the limit block 42 together form an inclined wedge structure. When the mold is closed, the sealant end 41d at the lower end of the floating sealant insert 41 is first in close contact with the upper end of the spherical pipe 11, and then through the action of the inclined wedge structure, the relative movement between the movable block 43 and the limit block 42 causes the floating sealant insert 41 to gradually move upward, thereby achieving precise compensation and adjustment.

[0070] Combination Fig.17As shown, in this embodiment, the inner hole 41a of the floating sealant insert 41 is slidably matched with the hot nozzle sleeve (not shown in the figure) on the mold, and the molten material is injected into the cavity through the hot nozzle sleeve, thereby achieving accurate molten material filling. Notches 41b are provided on both sides of the floating sealant insert 41, and a slope 41c is provided at the bottom of the notch 41b. The inner end bottom of the movable block 43 is tightly abutted against the slope 41c to form a stable support and guide structure.

[0071] In other embodiments, a mold is disclosed, including the vehicle suspension arm molding mechanism described in this embodiment.

[0072] Furthermore, combined with Figure 2-5 As shown, in another embodiment, the mold includes a movable mold assembly 20 and a fixed mold assembly 30, wherein the movable mold assembly 20 includes a movable mold plate 21, a top plate 22, and a push rod 23 installed on the top plate 22. The molding mechanism is fixedly installed on the movable mold assembly 20 to complete the molding operation of the ball bowl 13. The push rod 23 is used to eject the ball joint 12 from the mold when the mold is opened to prevent the parts from sticking to the mold and affecting the demolding efficiency. Through the action of the push rod 23, it is ensured that the ball joint 12 can be smoothly separated from the mold during the mold opening process.

[0073] Furthermore, in another embodiment, the floating compensation mechanism 40 is fixedly mounted on the movable mold assembly 20 .

[0074] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, 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 operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0075] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0076] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0077] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A vehicle suspension arm forming mechanism, characterized in that: It includes at least one pair of first sliders and at least one pair of second sliders, each first slider is slidably matched with the corresponding second slider, and the second slider is located on the inner side of the first slider. The combination of the first slider and the second slider is used to form the lip on the ball bowl, and the shoulder pull rod on the second slider is slidably matched with the first slider. When the mold is opened, the outward movement of the first slider drives the second slider to move away from the ball bowl, and the second slider is driven outward synchronously by the shoulder pull rod pressing against the first slider.

2. A vehicle suspension arm forming mechanism according to claim 1, characterized in that: One of the first sliding blocks is connected to a second oil cylinder.

3. The vehicle suspension arm forming mechanism according to claim 1, characterized in that: In the two pairs of the first sliding blocks, the two first sliding blocks located on the inner side are connected to the moving end of the same first oil cylinder through a connecting plate.

4. A vehicle suspension arm forming mechanism according to claim 3, characterized in that: A slider block is installed on the inner side of the first slider, and the lower swing arm body rests on the slider block when the mold is closed, and / or; The first slider is provided with a slider insert, and the slider insert is tightly pressed against the spherical connecting pipe when the mold is closed.

5. The vehicle suspension arm forming mechanism according to claim 3, characterized in that: The movable end of the first oil cylinder is fixedly connected to the connecting plate, and the connecting plate is symmetrically provided with two inclined grooves, and one end of the first sliding block is slidably matched with the inclined grooves.

6. The vehicle suspension arm forming mechanism according to claim 1, characterized in that: The shoulder pull rod sleeve is provided with a first spring, and the first spring is located between the first sliding block and the second sliding block.

7. A vehicle suspension arm forming mechanism according to claim 6, characterized in that: It also includes a guide rod, the second sliding block is provided with a guide groove, and the inner end of the guide rod is slidably matched with the guide groove.

8. The vehicle suspension arm forming mechanism according to claim 1, characterized in that: The molding mechanism is used in conjunction with a floating compensation mechanism, which includes a floating sealant insert, and the floating sealant insert is used to tightly abut against the upper end of the spherical connecting pipe when the mold is closed.

9. A vehicle suspension arm forming mechanism according to claim 8, characterized in that: The floating compensation mechanism further comprises an elastic glue stick, and the elastic glue stick has an elastic tendency to make the floating sealing insert tightly abut against the spherical connecting pipe; and / or The floating compensation mechanism comprises a limit block and a movable block, wherein the movable block is located inside the limit block and is slidably matched with the limit block in an oblique direction, and the movable block is tightly against a notch on the floating sealant insert.

10. A mold, characterized in that: It comprises the vehicle suspension arm forming mechanism described in any one of claims 1-9.

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