EA front and rear trailing arm assembly mold

Abstract

The utility model discloses an EA front and back trailing arm assembly mould, which relates to the technical field of automobile part manufacturing, and comprises two supports, the two supports are mutually clamped, the upper surfaces of the supports are detachably provided with a connecting arm lower mould, the upper surfaces of the supports are symmetrically and fixedly provided with support columns, the upper sides of the supports are detachably provided with an upper plate, and the lower surfaces of the support columns are symmetrically and fixedly provided with lower connecting arm moulds. The upper surface of the upper plate is symmetrically and fixedly provided with air cylinders, and the output ends of the air cylinders penetrate through the upper plate and are detachably connected with a lifting plate. According to the EA front and back trailing arm assembly mold, the design of multiple mold cavities is adopted, a plurality of key components such as a connecting arm, a reinforcing rib, a hinge and a transverse stabilizer bar of a trailing arm assembly can be formed at the same time, and the production efficiency is improved. Compared with a traditional mode that parts are formed one by one through a mold, the production cycle is greatly shortened, the production efficiency is improved, large-scale production is facilitated, and all the parts of the mold are easy and convenient to operate and convenient to maintain when assembled and disassembled.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts manufacturing technology, specifically to an EA front and rear trailing arm assembly mold. Background Technology

[0002] In the automotive industry, with the continuous improvement of vehicle performance and safety requirements, the manufacturing precision and quality of automotive parts have become key factors. For the front and rear trailing arms in the torsion beam suspension system, their structure is complex, and the design and manufacturing precision requirements of the molds are extremely high.

[0003] However, existing technologies still have the following problems:

[0004] First, the molding efficiency of existing EA front and rear trailing arm assembly molds is mostly inadequate. They are mostly single-cavity designs, which can only mold a single component of the trailing arm assembly at a time. Each component requires a series of steps, including mold opening and closing, material placement and fixing, molding processing, and product removal. This undoubtedly consumes a lot of time and is difficult to meet the needs of large-scale production.

[0005] Secondly, the existing EA front and rear trailing arm assembly molds are usually not easy to disassemble, and the connection between the components is often quite complicated. The connection between the lower mold of the connecting arm and the bracket may be achieved by welding or complex riveting. Once this connection is completed, disassembly is extremely difficult when maintenance or replacement of components is required. If the lower mold of the connecting arm is to be replaced, specialized cutting equipment may be required, which not only consumes a lot of manpower and resources, but also easily damages surrounding components, increasing maintenance costs and difficulty.

[0006] To address the aforementioned problems, the inventors proposed an EA front and rear trailing arm assembly mold to solve them. Utility Model Content

[0007] In order to solve the problems of insufficient molding efficiency and inconvenient disassembly of the EA front and rear trailing arm assembly mold, the purpose of this utility model is to provide an EA front and rear trailing arm assembly mold.

[0008] To solve the above technical problems, the present invention adopts the following technical solution: an EA front and rear trailing arm assembly mold, comprising two brackets, which are interlocked with each other, and a connecting arm lower mold is detachably provided on the upper surface of the brackets. Support columns are symmetrically fixed on the upper surface of the brackets. An upper plate is detachably provided on the upper side of the brackets. Cylinders are symmetrically fixed on the upper surface of the upper plate, and the output end of the cylinders passes through the upper plate and is detachably connected to a lifting plate. A connecting arm upper mold is fixed on the lower surface of the lifting plate. A reinforcing rib upper mold, a hinge upper mold, and a lateral stabilizer bar upper mold are detachably connected to the lower surface of the lifting plate. A reinforcing rib lower mold, a hinge lower mold, and a lateral stabilizer bar lower mold are detachably connected to the upper surface of the brackets.

[0009] Preferably, connecting plates are fixedly provided on the outer sides of the upper mold of the reinforcing rib, the upper mold of the hinge, and the upper mold of the lateral stabilizer bar, and the connecting plates are connected to the lifting plate by bolts. Mounting blocks are symmetrically fixed on the outer sides of the lower mold of the reinforcing rib, the lower mold of the hinge, and the lower mold of the lateral stabilizer bar, and the mounting blocks are connected to the corresponding brackets by bolts.

[0010] Preferably, the support column passes through the upper plate, and sleeves are symmetrically fixed on the upper surface of the upper plate. The upper end of the support column is located in the corresponding sleeve. A reinforcing bolt is bolted to the upper surface of the sleeve, and the reinforcing bolt is bolted to the corresponding support column. An insert block is fixed on one side of the bracket, and a slot for using the insert block is opened on one side of the bracket.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. The mold of this utility model adopts a multi-cavity design, which can simultaneously form multiple key components of the trailing arm assembly, such as the connecting arm, reinforcing rib, hinge, and lateral stabilizer bar. Compared with the traditional method of forming components one by one, it greatly shortens the production cycle, improves production efficiency, and is conducive to large-scale production.

[0013] 2. The lower mold of the connecting arm of this utility model is engaged with the bracket by inserting a column, the upper mold is connected to the lifting plate by bolts through the connecting plate, the lower mold is connected to the bracket by bolts through the mounting block, and the inserting blocks and slots between the brackets are matched. The upper plate and the support are connected by sleeves and reinforcing bolts. All of these methods make it easy to assemble and disassemble the various parts of the mold, facilitate maintenance, replacement of parts, and adjustment of the mold structure according to different production needs, thereby improving the versatility and flexibility of the mold. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is an exploded view of the upper plate and related structures of the support frame of this utility model.

[0017] Figure 3 This is an exploded view of the upper plate and related cylinder structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the lower structure of the lifting plate of this utility model.

[0019] In the diagram: 1. Bracket; 11. Support column; 12. Insert block; 13. Block groove; 2. Upper plate; 21. Cylinder; 22. Lifting plate; 23. Sleeve; 24. Reinforcing bolt; 25. Connecting plate; 26. Reinforcing ring; 3. Upper mold of connecting arm; 31. Upper mold of reinforcing rib; 32. Upper mold of hinge; 33. Upper mold of lateral stabilizer bar; 34. Connecting plate; 4. Lower mold of connecting arm; 41. Lower mold of reinforcing rib; 42. Lower mold of hinge; 43. Lower mold of lateral stabilizer bar; 44. Mounting block; 45. Insert column. Detailed Implementation

[0020] 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.

[0021] Example: Figure 1-4As shown, this utility model provides a mold for an EA front and rear trailing arm assembly, including two brackets 1. The material is high-strength alloy steel, such as 42CrMo, which has good comprehensive mechanical properties, high yield strength, and can withstand large pressure and impact forces, ensuring the stability and reliability of the basic frame of the mold during long-term use. The two brackets 1 are interlocked, and the upper surface of the bracket 1 is detachably provided with a lower mold 4 for the connecting arm. The upper surface of the bracket 1 is symmetrically fixed with a support column 11. The upper side of the bracket 1 is detachably provided with an upper plate 2. The upper surface of the upper plate 2 is symmetrically fixed with a cylinder 21, and the output end of the cylinder 21 passes through the upper plate 2 and is detachably connected to a lifting plate 22. The output end of the cylinder 21 is fixed with a connecting plate 25, and the connecting plate 25 is connected to the lifting plate 22 by bolts. The outer surface of the lifting plate 22 is symmetrically fixed with reinforcing rings 26, and the reinforcing rings 26 are sleeved on the outer surface of the corresponding support column 11. The lower surface of the lifting plate 22 is fixed with a connecting arm upper mold 3. The lower surface is detachably connected to a reinforcing rib upper mold 31, a hinge upper mold 32, and a lateral stabilizer bar upper mold 33. The upper surface of the bracket 1 is detachably connected to a reinforcing rib lower mold 41, a hinge lower mold 42, and a lateral stabilizer bar lower mold 43. When the cylinder 21 is activated, its output pushes the connecting plate 25, thereby causing the lifting plate 22 and the connecting arm upper mold 3, reinforcing rib upper mold 31, hinge upper mold 32, and lateral stabilizer bar upper mold 33 mounted on its lower surface to move downwards. At this time, the connecting arm upper mold 3 and the connecting... The lower mold 4, the upper mold 31 and the lower mold 41, the upper mold 32 and the lower mold 42, the upper mold 33 and the lower mold 43 of the lateral stabilizer bar are joined together to extrude the material (such as metal sheet, plastic, etc., depending on the material of the trailing arm) placed in the mold cavity to form the various parts of the EA front and rear trailing arm assembly. After the forming is completed, the output end of the cylinder 21 retracts, driving the lifting plate 22 and each upper mold to move upward, completing the mold opening, and the formed parts can be taken out.

[0022] The inner sides of the upper mold 31 for the reinforcing rib, the upper mold 32 for the hinge, and the upper mold 33 for the lateral stabilizer bar are all in movable contact with the upper mold 3 for the connecting arm. The inner sides of the lower mold 41 for the reinforcing rib, the lower mold 42 for the hinge, and the lower mold 43 for the lateral stabilizer bar are all in movable contact with the lower mold 4 for the connecting arm. Connecting plates 34 are fixedly provided on the outer sides of the upper mold 31 for the reinforcing rib, the upper mold 32 for the hinge, and the upper mold 33 for the lateral stabilizer bar, and the connecting plates 34 are connected to the lifting plate 22 by bolts. Mounting blocks 44 are symmetrically fixed on the outer sides of the lower mold 41 for the reinforcing rib, the lower mold 42 for the hinge, and the lower mold 43 for the lateral stabilizer bar, and the mounting blocks 44 are connected to the corresponding... The brackets 1 are connected by bolts. The upper mold 31 of the reinforcing rib, the upper mold 32 of the hinge, and the upper mold 33 of the lateral stabilizer bar are designed to fit with the upper mold 3 of the connecting arm, and the corresponding lower mold is designed to fit with the lower mold 4 of the connecting arm. This design allows for better control of the dimensional and shape accuracy of each component during the molding process, and the transition between the connection parts of each component is more natural. This improves the overall quality of the EA front and rear trailing arm assembly and increases the yield rate of the product. The upper and lower molds are installed by bolts through the connecting plate 34 and the mounting block 44, which facilitates disassembly and maintenance.

[0023] The lower surface of the connecting arm lower mold 4 is symmetrically fixed with inserts 45, and the inserts 45 are locked in the bracket 1. The inserts 45 and the mating holes in the bracket 1 adopt a transition fit with an interference of 0.01-0.03mm to ensure that the connecting arm lower mold 4 is firmly installed and easy to disassemble. A block 12 is fixedly installed on one side of the bracket 1, and a slot 13 for using the insert 12 is opened on one side of the bracket 1. The support column 11 passes through the upper plate 2. The upper surface of the upper plate 2 is symmetrically fixed with sleeves 23. The upper end of the support column 11 is located in the corresponding sleeve 23. The upper surface of the sleeve 23 is bolted with a reinforcing bolt 24, and the reinforcing bolt 24 is bolted to the corresponding support column 11. First, the two brackets 1 are locked together by the fit of the inserts 12 and the slots 13 to complete the mold basic frame construction. On the upper surface of the bracket 1, the inserts 45 are connected to the upper plate 2. 5. The lower mold 4 of the connecting arm is installed in conjunction with the bracket 1. At the same time, the lower mold 41 of the reinforcing rib, the lower mold 42 of the hinge, and the lower mold 43 of the lateral stabilizer are symmetrically fixed and installed. Their inner sides are in contact with the lower mold 4 of the connecting arm. The upper plate 2 is penetrated by the support column 11 and the upper end of the support column 11 is covered by the sleeve 23. It is further fixed by the reinforcing bolt 24 to ensure that the relative position of the upper plate 2 and the bracket 1 is stable. The upper mold 3 of the connecting arm, the upper mold 31 of the reinforcing rib, the upper mold 32 of the hinge, and the upper mold 33 of the lateral stabilizer are installed on the lower surface of the lifting plate 22. Their inner sides are in contact with the upper mold 3 of the connecting arm and are fixed to the lifting plate 22 by bolts through the connecting plate 34.

[0024] Working principle: First, the two brackets 1 are engaged with each other by the cooperation of the insert block 12 and the slot 13 to complete the basic frame of the mold. On the upper surface of the bracket 1, the lower mold of the connecting arm 4 is installed by the engagement of the insert post 45 with the bracket 1. At the same time, the lower mold of the reinforcing rib 41, the lower mold of the hinge 42 and the lower mold of the transverse stabilizer 43 are symmetrically fixed and installed. Their inner sides are in contact with the lower mold of the connecting arm 4. The upper plate 2 is penetrated by the support column 11 and the upper end of the support column 11 is covered by the sleeve 23. It is further fixed by the reinforcing bolt 24 to ensure that the relative position of the upper plate 2 and the bracket 1 is stable. The upper mold of the connecting arm 3, the upper mold of the reinforcing rib 31, the upper mold of the hinge 32 and the upper mold of the transverse stabilizer 33 are installed on the lower surface of the lifting plate 22. Their inner sides are in contact with the upper mold of the connecting arm 3 and are fixed to the lifting plate 22 by bolts through the connecting plate 34.

[0025] When cylinder 21 is activated, its output end pushes the connecting plate 25, which in turn drives the lifting plate 22 and the connecting arm upper mold 3, reinforcing rib upper mold 31, hinge upper mold 32, and lateral stabilizer bar upper mold 33 mounted on its lower surface to move downward. At this time, the connecting arm upper mold 3 and connecting arm lower mold 4, the reinforcing rib upper mold 31 and reinforcing rib lower mold 41, the hinge upper mold 32 and hinge lower mold 42, and the lateral stabilizer bar upper mold 33 and lateral stabilizer bar lower mold 43 close together, extruding the material (such as metal sheet, plastic, etc., depending on the material of the trailing arm) placed in the mold cavity to form the various parts of the EA front and rear trailing arm assembly. After forming is completed, the output end of cylinder 21 retracts, driving the lifting plate 22 and each upper mold to move upward, completing the mold opening, and the formed parts can be taken out.

[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A mold for an EA front and rear trailing arm assembly, comprising two brackets (1), characterized in that: The two brackets (1) are interlocked, and the upper surface of the bracket (1) is detachably provided with a lower mold (4) for connecting arm. The upper surface of the bracket (1) is symmetrically provided with a support column (11). The upper side of the bracket (1) is detachably provided with an upper plate (2). The upper surface of the upper plate (2) is symmetrically provided with a cylinder (21). The output end of the cylinder (21) passes through the upper plate (2) and is detachably connected with a lifting plate (22). The lower surface of the lifting plate (22) is fixedly provided with a upper mold (3) for connecting arm. The lower surface of the lifting plate (22) is detachably connected with a reinforcing rib upper mold (31), a hinge upper mold (32), and a transverse stabilizer upper mold (33). The upper surface of the bracket (1) is detachably connected with a reinforcing rib lower mold (41), a hinge lower mold (42), and a transverse stabilizer lower mold (43).

2. The EA front and rear trailing arm assembly mold as described in claim 1, characterized in that: The support column (11) penetrates the upper plate (2). The upper surface of the upper plate (2) is symmetrically fixed with sleeves (23). The upper end of the support column (11) is located in the corresponding sleeve (23). The upper surface of the sleeve (23) is bolted with a reinforcing bolt (24), and the reinforcing bolt (24) is bolted to the corresponding support column (11).

3. The EA front and rear trailing arm assembly mold as described in claim 1, characterized in that: The output end of the cylinder (21) is fixedly provided with a connecting plate (25), and the connecting plate (25) and the lifting plate (22) are connected by bolts.

4. The EA front and rear trailing arm assembly mold as described in claim 1, characterized in that: The outer surface of the lifting plate (22) is symmetrically fixed with reinforcing rings (26), and the reinforcing rings (26) are sleeved on the outer surface of the corresponding support column (11).

5. The EA front and rear trailing arm assembly mold as described in claim 1, characterized in that: The inner sides of the upper mold (31) for the reinforcing rib, the upper mold (32) for the hinge, and the upper mold (33) for the lateral stabilizer are all in contact with the upper mold (3) for the connecting arm. The inner sides of the lower mold (41) for the reinforcing rib, the lower mold (42) for the hinge, and the lower mold (43) for the lateral stabilizer are all in contact with the lower mold (4) for the connecting arm.

6. The EA front and rear trailing arm assembly mold as described in claim 1, characterized in that: The outer sides of the upper mold (31) for reinforcing ribs, the upper mold (32) for hinges, and the upper mold (33) for lateral stabilizers are all fixedly provided with connecting plates (34), and the connecting plates (34) are connected to the lifting plate (22) by bolts. The outer sides of the lower mold (41) for reinforcing ribs, the lower mold (42) for hinges, and the lower mold (43) for lateral stabilizers are all symmetrically fixedly provided with mounting blocks (44), and the mounting blocks (44) are connected to the corresponding brackets (1) by bolts.

7. The EA front and rear trailing arm assembly mold as described in claim 1, characterized in that: The lower surface of the connecting arm lower mold (4) is symmetrically fixed with inserts (45), and the inserts (45) are locked in the bracket (1).

8. The EA front and rear trailing arm assembly mold as described in claim 1, characterized in that: A plug (12) is fixedly provided on one side of the bracket (1), and a slot (13) for use with the plug (12) is opened on one side of the bracket (1).

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