Liquid forging die for straight automobile swing arm

Abstract

The utility model discloses a straight type automobile swing arm liquid forging die which comprises a lower die base, a die core is fixedly installed in the middle of the upper portion of the lower die base, automobile swing arm bodies are arranged at the two ends of the inner side of the die core, a material handle is arranged on one side of the middle of the upper end face of the lower die base, and an ejector rod is arranged at one end of the upper portion of the lower die base. An ejector rod is arranged on the lower die base, sliding blocks are connected to the two ends of the ejector rod in a clamped mode, loose cores are connected to the two ends of the end faces of the two sides of the lower die base through bolts, two pairs of supporting pieces are arranged on the inner side of the automobile swing arm body, and an exhaust groove is formed in the tail end of the automobile swing arm body. And meanwhile, due to the fact that the use amount of molten aluminum is small and the pressure is low, the service life of 6-8 W times can be met on the premise that damage such as cracking and mold collapse does not occur, and two products can be produced at a time.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts production, in particular to a liquid forging die for a straight automobile swing arm. Background Art

[0002] Automobile lightweighting is to reduce the weight of the automobile by optimizing the automobile body structure under the condition of meeting the requirements of automobile use, safety and cost control, so as to achieve the purpose of energy saving and emission reduction. As people pay more attention to automobile fuel consumption, automobile lightweighting has become a trend in the development of the automobile industry.

[0003] The swing arm is the connection mechanism between the frame and the wheel. Its function is to guide and support the suspension. It can effectively improve the stability of the car's steering wheel, allowing the driver to easily control the direction of the car.

[0004] However, most of the existing straight automobile swing arm production molds have a short service life and are easy to deform. The traditional process can only produce one product, resulting in low production efficiency. In addition, there is no exhaust duct because a large amount of gas will enter the cavity during injection molding. If these gases are not eliminated, there will be a large number of bubbles inside, resulting in more potholes on the surface of the produced automobile swing arm, thereby reducing the structural strength and service life.

[0005] Therefore, those skilled in the art provide a straight automobile swing arm liquid forging die to solve the problems raised in the above background technology. Utility Model Content

[0006] The utility model aims to provide a liquid forging die for a straight automobile swing arm, which solves the problems that most of the production dies for straight automobile swing arms in the prior art have a short service life, are easily deformed, and can only produce one product through traditional processes.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a straight automobile swing arm liquid forging die, comprising a lower die base, a die core is fixedly installed in the upper middle part of the lower die base, the inner two ends of the die core are provided with an automobile swing arm body, a material handle is provided on one side of the middle part of the upper end surface of the lower die base, a push rod is provided at one end of the upper end of the lower die base, both ends of the push rod are clamped with sliders, and both ends of the end surfaces of both sides of the lower die base are bolted with core pullers;

[0008] Two pairs of support members are arranged on the inner side of the automobile swing arm body, an exhaust groove is arranged at the end of the automobile swing arm body, both of the exhaust grooves are connected to the mold core, and an upper mold base is arranged at the upper end of the lower mold base.

[0009] As a further description of the above technical solution: a slide groove is opened in the middle of the inner side of the core pulling, and the sliding block is slidably connected inside the slide groove.

[0010] As a further description of the above technical solution: an injection port is provided on one side of the middle portion of the upper end surface of the upper mold base, and the injection port is communicated with the mold core.

[0011] As a further description of the above technical solution: installation grooves are provided in the middle of both side end surfaces of the upper mold base.

[0012] As a further description of the above technical solution: the automobile swing arm body, the core pulling part and the support part are all symmetrically arranged.

[0013] The utility model has the following beneficial effects:

[0014] 1. Compared with the prior art, the straight automobile swing arm liquid forging die uses as few flow channels, slag bags and exhaust channels as possible to achieve the purpose of complete filling of aluminum liquid and no influence of arm body defects on its loading force, thereby improving the utilization rate of aluminum liquid and reducing production costs. The design of the insert and core pulling structure also helps to reduce the cost of later processing of the arm body;

[0015] 2. Compared with the prior art, this straight automobile swing arm liquid forging mold adopts a left-right symmetrical zigzag flow channel design to ensure the stability and integrity of aluminum liquid filling and discharge the gas in the mold as much as possible; the slag bag and exhaust channel on the assembly hole are designed to absorb slag inclusions in the aluminum liquid and exhaust, reducing defects such as pores and slag inclusions in the arm body; the assembly hole is designed with core pulling and inserts to achieve one-time molding, reduce the amount of aluminum liquid, and reduce the amount of later processing.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a top view of the utility model.

[0020] Figure 3 It is a cross-sectional view of the utility model.

[0021] Figure 4 This utility model Figure 3 Schematic diagram of the structure of A.

[0022] Legend:

[0023] 1. Lower mold blank; 2. Ejector rod; 3. Slider; 4. Core pulling; 5. Support; 6. Exhaust groove; 7. Mold core; 8. Automobile swing arm body; 9. Material handle; 10. Upper mold blank; 11. Injection port; 12. Installation groove. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] Reference Figure 1-4 , the utility model provides an embodiment, a straight automobile swing arm liquid forging die, comprising a lower die base 1, a die core 7 is fixedly installed in the upper middle part of the lower die base 1, and an automobile swing arm body 8 is arranged at both ends of the inner side of the die core 7, and a material handle 9 is arranged on one side of the middle part of the upper end surface of the lower die base 1, and a push rod 2 is arranged at one end of the upper end of the lower die base 1, and sliders 3 are clamped at both ends of the push rod 2. Both ends of the end surfaces of the lower die base 1 are bolted with core pulls 4, and the core pulls 4 are used to deal with the position on the parting surface of the product that cannot be demolded and belong to the "barb processing system", which is a structure of the mold. The U-shaped swing arm mold design combined with the liquid die forging process can reduce the defects of the arm body to within the standard range, so that it can fully meet the loading requirements. At the same time, due to the small amount of aluminum liquid and the low pressure, the mold can meet the service life of 6-8W times without cracking, collapse and other damages.

[0026] Two pairs of support members 5 are arranged on the inner side of the automobile swing arm body 8, and exhaust grooves 6 are arranged at the end of the automobile swing arm body 8, and the two exhaust grooves 5 are both connected to the mold core 7. The upper end of the lower mold base 1 is provided with an upper mold base 10, and its supporting function can be realized through the support frame 5. The exhaust grooves 5 have the following functions: first, to exhaust the air in the mold cavity when injecting the molten material, and second, to exhaust the gas generated during the heating process of the material;

[0027] A slide groove 14 is provided in the middle of the inner side of the core pulling 4, and the slider 3 is slidably connected to the inside of the slide groove 14. An injection port 13 is provided on one side of the middle of the upper end surface of the upper mold base 10, and the injection port 13 is connected to the mold core 7. By setting the injection port 13, injection operation can be performed into the interior of the mold. Installation grooves 12 are provided in the middle of the end surfaces of both sides of the upper mold base 10. The automobile swing arm body 8, the core pulling 4 and the support member 5 are all symmetrically arranged. The installation groove 12 is provided to improve the convenience of connecting the mold with external parts, and the material handle 9 in the mold is used to push the melt into the mold.

[0028] Working principle: When the device is used, the melt is first poured into the mold through the injection port 11, and the melt is pushed into the mold by the material handle 9. In this process, the air in the mold cavity and the gas generated during the material heating process are discharged through the exhaust groove 6 at the front end of the mold core 7. The design of the left-right symmetrical zigzag flow channel ensures the stability and integrity of the aluminum liquid filling, and the gas in the mold is discharged as much as possible; the slag bag and the exhaust channel on the assembly hole are designed to absorb the slag inclusions in the aluminum liquid and exhaust, thereby reducing defects such as pores and slag inclusions in the arm body; the assembly hole is designed with a core puller 4 and an insert to achieve one-time molding, reduce the amount of aluminum liquid, and reduce the amount of later processing.

[0029] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A liquid die forging die for a straight automobile swing arm, comprising a lower die base (1), characterized in that: A mold core (7) is fixedly installed in the middle of the upper part of the lower mold base (1), and an automobile swing arm body (8) is arranged at both ends of the inner side of the mold core (7). A material handle (9) is arranged on one side of the middle part of the upper end surface of the lower mold base (1). A push rod (2) is arranged at one end of the upper part of the lower mold base (1), and sliders (3) are clamped at both ends of the push rod (2). Both ends of the end surfaces of both sides of the lower mold base (1) are bolted with core pullers (4); Two pairs of support members (5) are arranged on the inner side of the automobile swing arm body (8), an exhaust groove (6) is arranged at the end of the automobile swing arm body (8), and both exhaust grooves (6) are connected to the mold core (7), and an upper mold base (10) is arranged at the upper end of the lower mold base (1).

2. The straight automobile swing arm liquid forging die according to claim 1, characterized in that: A sliding groove (14) is provided in the middle of the inner side of the core pulling device (4), and the sliding block (3) is slidably connected inside the sliding groove (14).

3. The straight automobile swing arm liquid forging die according to claim 1, characterized in that: A material injection port (13) is provided on one side of the middle portion of the upper end surface of the upper mold base (10), and the material injection port (13) is connected to the mold core (7).

4. The straight automobile swing arm liquid forging die according to claim 1, characterized in that: The middle parts of the end surfaces on both sides of the upper mold base (10) are provided with mounting grooves (12).

5. The straight automobile swing arm liquid forging die according to claim 1, characterized in that: The automobile swing arm body (8), the core pulling member (4) and the supporting member (5) are all symmetrically arranged.

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