Anti-deformation tool for forging connecting rod

Abstract

The utility model discloses an anti-deformation tool for forging a connecting rod, which comprises a stamping base, the bottom of the stamping base is fixedly connected with a plurality of supporting legs, the top of the stamping base is connected with a same stamping plate through a plurality of groups of hydraulic rods, the bottom of the stamping plate is connected with a stamping die holder, the stamping die holder is fixedly connected with a top die fixing mechanism, and the top die fixing mechanism is fixedly connected with a bottom die. Through the top die fixing mechanism, the elastic mechanism and the bottom die fixing mechanism, a consistent pressure applying process is realized by adopting a multi-point cooperative hydraulic system, the problem of dimensional deviation caused by poor traditional positioning is successfully solved, a specific module is convenient to replace through the fixing mechanisms, and the production efficiency is improved. According to the invention, the die compatibility is improved through the mode of all hardware units instead of the mode of all hardware units, the conversion cost and time investment required for producing different types of parts are remarkably reduced, efficient seamless switching among various types of parts is ensured, and the quality problem caused by insufficient adjustment is greatly avoided.

Description

Technical Field

[0001] This utility model relates to the field of connecting rod forging technology, and in particular to anti-deformation tooling for forged connecting rods. Background Technology

[0002] Forging is used to manufacture connecting rods and crankshaft connecting rod mechanisms for automobile engines. Forged connecting rod anti-deformation tooling is a special equipment used to prevent deformation of the connecting rod during the forging process. By controlling multiple aspects such as clamping, guiding, and cooling, the dimensional and shape accuracy of the connecting rod is ensured.

[0003] Currently, this tooling faces several key issues: during connecting rod forging, if the positioning of the mold and tooling is not aligned accurately, the connecting rod will shift during the forging process, resulting in dimensional deviations and shape distortion, failing to meet high-precision assembly requirements; secondly, the forging environment is extremely hot, and the connecting rod is prone to softening and deformation when exposed to high temperatures for extended periods; furthermore, when companies produce multiple models of connecting rods, the mold and tooling lacks versatility, requiring frequent replacement of corresponding tooling, and improper adjustments can lead to connecting rod deformation. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art and to propose an anti-deformation tooling for forged connecting rods.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A deformation-resistant fixture for forged connecting rods includes a stamping base. Multiple support legs are fixedly connected to the bottom of the stamping base. A single stamping plate is connected to the top of the stamping base via multiple sets of hydraulic rods. A stamping die base is connected to the bottom of the stamping plate. A top die fixing mechanism is fixedly connected to the stamping die base. A collection box is provided at the bottom of the stamping base. A cylinder is fixedly connected to the bottom of the collection box. A bottom die fixing mechanism is fixedly connected to the top of the cylinder. The stamping plate is connected to the stamping base via a pressing mechanism.

[0007] Preferably, the extrusion mechanism includes two piston-type air pressure boxes fixedly connected to the top of the stamping base and symmetrically arranged. A piston plate is slidably connected to the inner wall of the air pressure box. A piston rod is fixedly connected to the top of the piston plate. The piston rod passes through the top of the air pressure box and is fixedly connected to the bottom of the stamping plate. A connecting pipe is connected to the bottom of the air pressure box. An air outlet is provided on the stamping base. The outer wall of the connecting pipe is connected to the inner wall of the air outlet.

[0008] Preferably, the top die fixing mechanism includes a first connecting plate fixedly connected to the bottom of the stamping die base, the first connecting plate being connected to a second connecting plate via a first fastening mechanism, an upper pressing template being fixedly connected to the bottom of the second connecting plate, and an elastic mechanism being connected to the bottom of the upper pressing template.

[0009] Preferably, the first fastening mechanism includes four first bolt holes located at opposite corners of the first connecting plate, and four second bolt holes located at opposite corners of the second connecting plate, with the corresponding first bolt holes and second bolt holes threadedly connected to the same first bolt.

[0010] Preferably, the elastic mechanism includes a plurality of telescopic rods fixedly connected to the bottom of the upper pressing template, and a telescopic spring is sleeved on the outer wall of the telescopic rod, with the top of the telescopic spring fixedly connected to the bottom of the upper pressing template.

[0011] Preferably, the bottom mold fixing mechanism includes a fourth connecting plate fixedly connected to the end of the cylinder, the fourth connecting plate being connected to a third connecting plate via a second fastening mechanism, a lower support plate being fixedly connected to the top of the third connecting plate, and a plurality of limiting posts being fixedly connected to the top of the lower support plate.

[0012] Preferably, the second fastening mechanism includes four third bolt holes located at opposite corners of the fourth connecting plate. The fourth bolt holes are located at four opposite corners of the third connecting plate, and the corresponding third bolt holes and fourth bolt holes are threaded with the same second bolt.

[0013] This utility model has the following advantages compared with the prior art:

[0014] 1. This utility model solves the problem of dimensional deviation caused by poor traditional positioning by using a top mold fixing mechanism, an elastic mechanism and a bottom mold fixing mechanism, and adopting a multi-point coordinated hydraulic system to achieve a consistent pressure application process. The fixing mechanism facilitates the replacement of specific modules instead of all hardware units, which improves mold compatibility, significantly reduces the conversion cost and time required when producing different types of parts, ensures efficient and seamless switching between various models, and greatly avoids quality problems caused by insufficient adjustment.

[0015] 2. This utility model achieves ventilation and heat dissipation inside the device through the extrusion mechanism, and cools the connecting rod, effectively reducing the risk of temperature-induced softening and deformation of the connecting rod. It also allows for timely cleaning of the connecting rod surface, optimizes the process, significantly improves the yield rate, and enhances production flexibility. Attached Figure Description

[0016] Figure 1 A three-dimensional drawing of the anti-deformation tooling for forged connecting rods proposed in this utility model;

[0017] Figure 2This is a schematic diagram of the anti-deformation tooling for forged connecting rods proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the bottom mold fixing mechanism and the top mold fixing mechanism of the anti-deformation tooling for forging connecting rods proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the lower support plate and limiting post structure of the anti-deformation tooling for forged connecting rods proposed in this utility model;

[0020] Figure 5 This is a schematic diagram of the extrusion mechanism of the anti-deformation tooling for forging connecting rods proposed in this utility model.

[0021] In the diagram: 1. Stamping base; 2. Hydraulic rod; 3. Stamping plate; 4. Stamping die base; 5. First connecting plate; 6. Second connecting plate; 7. First bolt; 8. Upper pressing plate; 9. Telescopic rod; 10. Telescopic spring; 12. Collection box; 13. Cylinder; 14. Fourth connecting plate; 15. Third connecting plate; 16. Second bolt; 17. Lower support plate; 18. Limiting post; 19. Pressure box; 20. Pressure plate; 21. Pressure rod; 22. Air guide pipe; 23. Air outlet. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Reference Figure 1-5The forging connecting rod anti-deformation fixture includes a stamping base 1, which supports and fixes other components. Multiple support legs are fixedly connected to the bottom of the stamping base 1 to increase overall stability and provide a more stable placement surface for the equipment. The top of the stamping base 1 is connected to the same stamping plate 3 through multiple sets of hydraulic rods 2 to ensure that the pressure applied to the connecting rod can be evenly distributed. Each set of hydraulic rods 2 will extend and retract synchronously to control the single stamping plate 3 connected to it to perform up and down reciprocating motion to complete the forging. The bottom of the stamping plate 3 is connected to a stamping die base 4, and the stamping die base 4 is fixedly connected to a top die fixing mechanism. The bottom of the stamping base 1 is provided with a collection box 12, and the bottom of the collection box 12 is fixedly connected to a cylinder 13. The cylinder 13 is pneumatically controlled to adjust the height of the bottom die fixing mechanism. The top of the cylinder 13 is fixedly connected to the bottom die fixing mechanism, which is responsible for the accurate placement and adjustment of the lower die to make it precisely matched and aligned with the top die. The stamping plate 3 is connected to the stamping base 1 through a pressing mechanism.

[0025] The extrusion mechanism includes two piston-type air pressure boxes 19 symmetrically arranged and fixedly connected to the top of the stamping base 1. External compressed air enters the air pressure box 19. A piston plate air pressure plate 20 is slidably connected to the inner wall of the air pressure box 19. A piston rod air pressure rod 21 is fixedly connected to the top of the piston plate air pressure plate 20. The piston rod air pressure rod 21 passes through the top of the air pressure box 19 and is fixedly connected to the bottom of the stamping plate 3. A connecting pipe air guide pipe 22 is connected to the bottom of the air pressure box 19. An air outlet 23 is provided on the stamping base 1. The air guide pipe 22 is responsible for exporting the gas in the air pressure box 19 and connecting it to the air outlet 23 located on the stamping base 1. The outer wall of the air guide pipe 22 is connected to the inner wall of the air outlet 23.

[0026] The top die fixing mechanism includes a first connecting plate 5 fixedly connected to the bottom of the stamping die base 4. The first connecting plate 5 is connected to a second connecting plate 6 through a first fastening mechanism. The bottom of the second connecting plate 6 is fixedly connected to an upper pressure plate 8, thereby ensuring that the entire structure can be stably installed on the forging equipment. The bottom of the upper pressure plate 8 is connected to an elastic mechanism. This configuration enables the upper pressure plate 8 to generate an appropriate buffering effect when contacting the workpiece, and also plays a corresponding limiting role.

[0027] The first fastening mechanism includes four first bolt holes located at opposite corners of the first connecting plate 5, and four second bolt holes located at opposite corners of the second connecting plate 6. The corresponding first and second bolt holes are threaded together with the same first bolt 7, facilitating maintenance or adjustment. The bolt connection not only provides reliability and stability but also ensures that the components are easy to disassemble and reinstall during use, ensuring tight contact and high-precision positioning between the two connecting plates. The bolt holes have matching internal threads and can be reliably connected by screwing in screws with matching external threads. The precise position and size design of these screw holes is to prevent the components from shifting when subjected to large stresses, ensuring that the entire assembly has sufficient strength to support the forging process requirements.

[0028] The elastic mechanism includes multiple telescopic rods 9 fixedly connected to the bottom of the upper pressure platen 8. The outer wall of the telescopic rods 9 is fitted with telescopic springs 10. The top of the telescopic springs 10 is fixedly connected to the bottom of the upper pressure platen 8. It can effectively prevent the connecting rod from deforming during the forging process, provide necessary buffering and support for the connecting rod during the application of pressure, and ensure uniform force distribution at different positions.

[0029] The bottom mold fixing mechanism includes a fourth connecting plate 14 fixedly connected to the end of the cylinder 13. The fourth connecting plate 14 is connected to a third connecting plate 15 through a second fastening mechanism. A lower support plate 17 is fixedly connected to the top of the third connecting plate 15. Multiple limiting posts 18 are fixedly connected to the top of the lower support plate 17. The multiple limiting posts 18 are distributed on the top surface of the lower support plate 17. The design of these limiting posts 18 ensures that the connecting rod will not be displaced or deformed during the forging process, thereby improving the product qualification rate and consistency. The specific distribution and arrangement of the limiting posts 18 are designed according to the specific application environment to ensure the best support effect.

[0030] The second fastening mechanism includes four third bolt holes located at opposite corners of the fourth connecting plate 14, and four fourth bolt holes located at opposite corners of the third connecting plate 15. The corresponding third and fourth bolt holes are threaded with the same second bolt 16. This design not only increases structural rigidity but also provides a convenient installation and disassembly process in actual operation. This connection layout provides stable support for subsequent processing and helps prevent the connecting rod from deforming due to severe vibration during forging, thereby ensuring the quality and service life of the connecting rod.

[0031] The specific working principle of this utility model is as follows:

[0032] In its initial state, when this device is used, firstly, the mold of the connecting rod to be processed is matched, and the third connecting plate 15 with the matching lower support plate 17 is aligned with the fourth connecting plate 14. The four third bolt holes correspond one-to-one with the fourth bolt holes. Each set of corresponding third bolt holes and fourth bolt holes is effectively fastened and positioned by the same bolt through, thereby ensuring that the tooling does not loosen or misalign during operation. Similarly, the four corners of the first connecting plate 5 and the second connecting plate 6 are fastened with the first bolts 7 to ensure efficient and stable fixing of the device.

[0033] The blank to be processed is placed on the lower support plate 17, and the connecting rod to be processed is placed on the limiting post 18. At this time, when the hydraulic rod 2 receives the command, it will push the upper stamping plate 3 to move downward according to the set program. As the stamping plate 3 moves downward, it drives the bottom fixed stamping die base 4 to press downward together. The connecting rod, which is installed in advance and located on the lower support plate 17, is positioned and clamped and is under the top die fixing mechanism to wait for the processing operation to be completed. The telescopic rod 9 and the telescopic spring 10 stabilize the connecting rod. The upper pressure plate 8 moves downward to squeeze the connecting rod and remove the burrs of the connecting rod. The bottom die can respond quickly and operate synchronously with the top die. The two together form a stable extrusion area for the connecting rod placed between them, which greatly increases the stability of the connecting rod in the processing process.

[0034] As the stamping plate 3 moves downward, the piston rod 21 connected to it moves accordingly, thereby driving the air pressure plate 20 to move downward. At this time, excess gas in the air pressure box 19 is discharged to the outside of the air outlet 23 through the air guide pipe 22. The gas blows air onto the forged connecting rod through the air outlet 23, thereby reducing the temperature of the connecting rod and removing dust from the surface of the connecting rod.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the content of the claims of the present utility model shall fall within the technical scope of the present utility model.

Claims

1. A deformation-resistant fixture for forged connecting rods, comprising a stamping base (1), characterized in that, The bottom of the stamping base (1) is fixedly connected to multiple support legs. The top of the stamping base (1) is connected to the same stamping plate (3) through multiple sets of hydraulic rods (2). The bottom of the stamping plate (3) is connected to a stamping die base (4). The stamping die base (4) is fixedly connected to a top die fixing mechanism. The bottom of the stamping base (1) is provided with a collection box (12). The bottom of the collection box (12) is fixedly connected to a cylinder (13). The top of the cylinder (13) is fixedly connected to a bottom die fixing mechanism. The stamping plate (3) is connected to the stamping base (1) through a pressing mechanism.

2. The anti-deformation tooling for a forged connecting rod according to claim 1, characterized in that: The extrusion mechanism includes two piston-box air pressure boxes (19) fixedly connected to the top of the stamping base (1) and symmetrically arranged. A piston plate air pressure plate (20) is slidably connected to the inner side wall of the air pressure box (19). A piston rod air pressure rod (21) is fixedly connected to the top of the piston plate air pressure plate (20). The piston rod air pressure rod (21) passes through the top of the air pressure box (19) and is fixedly connected to the bottom of the stamping plate (3). A connecting pipe air guide pipe (22) is connected to the bottom of the air pressure box (19). An air outlet (23) is provided on the stamping base (1). The outer side wall of the air guide pipe (22) is connected to the inner side wall of the air outlet (23).

3. The anti-deformation tooling for a forged connecting rod according to claim 2, characterized in that: The top mold fixing mechanism includes a first connecting plate (5) fixedly connected to the bottom of the stamping die base (4), the first connecting plate (5) is connected to a second connecting plate (6) through a first fastening mechanism, the bottom of the second connecting plate (6) is fixedly connected to an upper pressing template (8), and the bottom of the upper pressing template (8) is connected to an elastic mechanism.

4. The anti-deformation tooling for a forged connecting rod according to claim 3, characterized in that: The first fastening mechanism includes four first bolt holes located at opposite corners of the first connecting plate (5), and four second bolt holes located at opposite corners of the second connecting plate (6). The corresponding first bolt holes and second bolt holes are threadedly connected to the same first bolt (7).

5. The anti-deformation tooling for forged connecting rods according to claim 3, characterized in that, The elastic mechanism includes multiple telescopic rods (9) fixedly connected to the bottom of the upper pressure template (8). The outer wall of the telescopic rod (9) is fitted with a telescopic spring (10), and the top of the telescopic spring (10) is fixedly connected to the bottom of the upper pressure template (8).

6. The anti-deformation tooling for forged connecting rods according to claim 1, characterized in that, The bottom mold fixing mechanism includes a fourth connecting plate (14) fixedly connected to the end of the cylinder (13), the fourth connecting plate (14) is connected to a third connecting plate (15) through a second fastening mechanism, the top of the third connecting plate (15) is fixedly connected to a lower support plate (17), and the top of the lower support plate (17) is fixedly connected to multiple limiting posts (18).

7. The anti-deformation tooling for forged connecting rods according to claim 6, characterized in that, The second fastening mechanism includes four third bolt holes located at opposite corners of the fourth connecting plate (14). The fourth bolt holes are located at opposite corners of the third connecting plate (15), and the corresponding third bolt holes and fourth bolt holes are threadedly connected to the same second bolt (16).

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