Heat treatment device for liquid die forging of automobile swing arm

Abstract

The utility model relates to the technical field of heat treatment equipment, and discloses a heat treatment device for liquid die forging of an automobile swing arm, which comprises a shell I, the inner wall of the shell I is fixedly connected with a shell II, the shell II is internally provided with a cooling component, an overturning component and a wall scraping component, and the wall scraping component is fixedly connected with the shell II. A third shell is fixedly connected to the inner wall of the first shell, a heating assembly is arranged in the third shell, and a temperature sensor is fixedly connected to the inner wall of the second shell. The overturning assembly comprises a first transmission shaft, a first gear, a first electric telescopic rod, a rack and blades, and the first gear is connected with the rack in an engaged mode. According to the utility model, through the synergistic effect of the overturning assembly and the cooling assembly, uniform cooling of the swing arm is realized, the rack is driven by the electric telescopic rod to reciprocate, the swing arm is turned over by the blade, all areas of the complex curved surface workpiece can be ensured to be in full contact with cooling airflow, cooling blind areas are eliminated, and residual stress is reduced.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment equipment technology, and in particular to a heat treatment device for liquid forging of automotive swing arms. Background Technology

[0002] The control arm is a core component of the automotive suspension system, responsible for connecting the wheels and the body and bearing complex loads during driving. Its performance directly affects the vehicle's handling, safety, and comfort. Liquid forging combines the advantages of casting (low cost and ability to form complex structures) with forging (dense structure and high strength). After injecting molten metal into a mold, high pressure is applied to achieve near-net-shape forming, combining high density and the ability to form complex structures. However, the aluminum alloy or steel control arm after liquid forging still needs to undergo heat treatment to adjust the microstructure in order to further improve its strength, toughness, and fatigue life.

[0003] In existing technologies, heat treatment of automotive swing arm liquid forgings often employs segmented equipment, where heating, heat preservation, and cooling are performed at different stations, with the workpiece transferred via robotic arms or conveyor belts. However, during the cooling process, some areas of the workpiece cannot fully contact the cooling airflow or liquid. For example, due to the workpiece's complex curved surface or concave structure, cooling blind zones can easily form, leading to localized temperature gradients and residual stress concentration. Therefore, there is a need for a heat treatment device for automotive swing arm liquid forgings that can increase cooling efficiency and achieve uniform cooling. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a heat treatment device for liquid forging of automotive swing arms, which aims to improve the problems of uneven cooling coverage and low energy efficiency in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat treatment device for liquid forging of automotive swing arms, comprising a housing 1, a conveyor belt fixedly connected to the inner wall of the housing 1, a housing 2 fixedly connected to the inner wall of the housing 1, a cooling assembly disposed inside the housing 2, a tilting assembly disposed inside the housing 2, a wall scraping assembly disposed inside the housing 1, a housing 3 fixedly connected to the inner wall of the housing 1, a heating assembly disposed inside the housing 3, and a temperature sensor fixedly connected to the inner wall of the housing 2;

[0006] The flipping assembly includes a drive shaft, both ends of which are rotatably connected to the inside of a housing. A gear is fixedly connected to one end of the drive shaft. An electric telescopic rod is fixedly connected inside the housing. A rack is fixedly connected to the output end of the electric telescopic rod. The gear meshes with the rack. A blade is fixedly connected to the outer wall of the drive shaft.

[0007] Furthermore, the wall scraping assembly includes a second drive shaft, both ends of which are rotatably connected to the inside of a first housing. A second gear is fixedly connected to one end of the second drive shaft, and sprockets are fixedly connected to both ends of the second drive shaft. Another set of identical sprockets is provided on the opposite side of the sprockets. A second connecting rod is rotatably connected inside the first housing, both ends of which are fixedly connected to the inside of the other set of sprockets. The two sets of sprockets are connected by a chain, and a scraper is provided between the two chains.

[0008] Furthermore, a gear three is provided on the outside of the housing one, the gear two is meshed with the gear three, one end of the transmission shaft two is fixedly connected to the output end of the motor, and a bracket is fixedly connected to the lower surface of the motor.

[0009] Furthermore, a guide plate is fixedly connected inside the housing, and a collection box is provided inside the housing.

[0010] Furthermore, the cooling assembly includes an annular air pipe, the outer wall of which is fixedly connected to the inner wall of the housing 2. The annular air pipe has several air outlets arranged symmetrically on its inner side. A connecting rod 1 is fixedly connected inside the housing 2, and an electric telescopic rod 2 is fixedly connected inside the housing 2. Multiple guide vanes are rotatably connected to the output end of the electric telescopic rod 2, and the multiple guide vanes are rotatably connected inside the connecting rod 1.

[0011] Furthermore, an air pump is fixedly connected to the upper part of the second housing, and an air outlet pipe is fixedly connected to the output end of the air pump, which is fixedly connected inside the annular air pipe.

[0012] Furthermore, the heating assembly includes a housing three, a temperature control platform is fixedly connected to the outer wall of the housing three, and a heating tube is fixedly connected inside the housing three, with both ends of the heating tube fixedly connected inside the temperature control platform.

[0013] Furthermore, the temperature control console is electrically connected to the temperature sensor, and the temperature sensor is electrically connected to the electric telescopic rod.

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

[0015] In this invention, uniform cooling of the swing arm is achieved through the synergistic effect of the flipping component and the cooling component. The temperature sensor sends an electrical signal to the electric telescopic rod, which drives the rack to reciprocate, causing the blades to periodically flip the swing arm. At the same time, the multi-angle air outlet of the annular air pipe, together with the adjustable guide vanes, forms a dynamic airflow field, ensuring that all areas of the complex curved workpiece can fully contact the cooling airflow, eliminating cooling blind spots and significantly reducing residual stress.

[0016] In this invention, the automated cleaning design of the wall scraping component effectively improves the reliability of equipment operation. By moving the scraper along the inner wall of the shell, the oxide scale and residue generated during the heat treatment process are removed in a timely manner, avoiding the accumulation of impurities that affect the quality of the workpiece. Furthermore, the coordinated design of the guide plate and the collection box enables the centralized collection of waste materials, which is convenient for subsequent processing. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a heat treatment device for liquid forging of automotive swing arms proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the annular gas pipe of a heat treatment device for liquid forging of automotive swing arms proposed in this utility model.

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 for Figure 2 Enlarged view at point B in the middle;

[0021] Figure 5 This is a schematic diagram of the temperature control console of a heat treatment device for liquid forging of automotive swing arms proposed in this utility model.

[0022] Legend:

[0023] 1. Housing 1; 2. Conveyor Belt; 3. Housing 2; 4. Air Pump; 5. Air Outlet Pipe; 6. Annular Air Pipe; 7. Electric Telescopic Rod 1; 8. Rack; 9. Gear 1; 10. Drive Shaft 1; 11. Blade; 12. Electric Telescopic Rod 2; 13. Connecting Rod 1; 14. Guide Vane; 15. Bracket; 16. Motor; 17. Gear 2; 18. Gear 3; 19. Drive Shaft 2; 20. Sprocket; 21. Connecting Rod 2; 22. Scraper; 23. Guide Vane; 24. Collection Box; 25. Housing 3; 26. Temperature Control Panel; 27. Heating Element; 28. Temperature Sensor; 29. ​​Chain. Detailed Implementation

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

[0025] Reference Figures 1-4The present invention provides an embodiment of a heat treatment device for liquid forging of automotive swing arms, comprising a heat-insulating shell 1, a conveyor belt 2 fixedly connected to the inner wall of the shell 1, the conveyor belt 2 penetrating the shell 1, adopting a high-temperature resistant metal mesh belt structure, capable of carrying workpieces continuously through heating and cooling stations, a heat-insulating shell 2 3 fixedly connected to the inner wall of the shell 1, a cooling component and a flipping component inside the shell 2 3, a wall scraping component inside the shell 1, a heat-insulating shell 3 25 fixedly connected to the inner wall of the shell 1, a heating component inside the shell 3 25, and a temperature sensor 28 fixedly connected to the inner wall of the shell 2 3.

[0026] The flipping assembly includes a drive shaft 10, both ends of which are rotatably connected to the inside of housing 2 3. A gear 9 is fixedly connected to one end of the drive shaft 10, inside housing 1. An electric telescopic rod 7 is fixedly connected inside housing 1, and a rack 8 is fixedly connected to the output end of the electric telescopic rod 7. The gear 9 meshes with the rack 8. Blades 11 are fixedly connected to the outer wall of the drive shaft 10. The cooling assembly includes multiple hollow annular air pipes 6, the outer walls of which are fixedly connected to the inner wall of housing 2 3 via heat insulation blocks. The inner side of the annular air pipes 6 is provided with… Several symmetrical air outlets spray air to cool the workpieces transported by the conveyor belt. Multiple symmetrical connecting rods 13 are fixedly connected inside the housing 2 3. Multiple symmetrical electric telescopic rods 12 are fixedly connected inside the housing 2 3. Multiple guide vanes 14 are rotatably connected to the output end of the electric telescopic rods 12. Multiple guide vanes 14 are rotatably connected inside the connecting rods 13. An air pump 4 is fixedly connected to the top of the housing 2 3. An air outlet pipe 5 is fixedly connected to the output end of the air pump 4. The air outlet pipe 5 is fixedly connected inside the annular air pipe 6. The air pump 4 provides cooling gas to the annular air pipe 6.

[0027] Reference Figure 1 and Figure 5The scraping assembly includes a second drive shaft 19, both ends of which are rotatably connected inside a housing 1. A gear 17 is fixedly connected to one end of the second drive shaft 19, and sprockets 20 are fixedly connected to both ends of the second drive shaft 19. Another set of identical sprockets 20 is located on the opposite side of each sprocket 20. A connecting rod 21 is rotatably connected inside the housing 1, both ends of which are fixedly connected to the other set of sprockets 20. The two sets of sprockets 20 are connected by a chain 29, and a scraper 22 is located between the two chains 29. A third gear 18 is located outside the housing 1, meshing with the second gear 17. One end of the second drive shaft 19 is fixedly connected to the output end of a motor 16. The motor 16 drives the second drive shaft 19 to rotate, and through the meshing of the sprockets 20 and the chain 29, drives the chain... The scraper 22 on the 29 moves along the inner wall of the housing 1 to continuously scrape off oxide scale and other residues. A bracket 15 is fixedly connected to the lower surface of the motor 16. A guide plate 23 is fixedly connected inside the housing 1. A collection box 24 is set inside the housing 1. The waste scraped by the scraper 22 slides into the collection box 24 through the guide plate 23 for centralized processing. The heating component includes a housing 25. A temperature control platform 26 is fixedly connected to the outer wall of the housing 25. A heating tube 27 is fixedly connected inside the housing 25. The two ends of the heating tube 27 are fixedly connected inside the temperature control platform 26. The temperature control platform 26 is electrically connected to the temperature sensor 28. During the heating process, the temperature control platform 26 receives temperature feedback signals from the temperature sensor 28 and the inside of the housing 25, and dynamically adjusts the power of the heating tube 27. The temperature sensor 28 is electrically connected to the electric telescopic rod 7.

[0028] Working principle: When the workpiece enters the housing 3 from the conveyor belt 2, the air pump 4 delivers high-pressure cold air to the annular air pipe 6 through the air outlet pipe 5. The airflow is sprayed out through the oblique air outlet of 6. The temperature sensor 28 transmits an electrical signal to drive the electric telescopic rod 7 to drive the rack 8 to reciprocate. The temperature sensor 28 is a TC0 model. The rack 8 causes the gear 9 to rotate. The gear 9 drives the transmission shaft 10 to rotate, causing the blade 11 to flip the workpiece. At the same time, the electric telescopic rod 12 adjusts the angle of the guide vane 14 to guide the airflow sprayed from the annular air pipe 6 to the complex curved surface of the workpiece.

[0029] During cleaning, motor 16 drives transmission shaft 29 to rotate. Through the meshing transmission of sprocket 20 and chain 29, the scraper 22 on chain 29 moves along the inner wall of shell 1 to continuously scrape off residues such as oxide scale. The waste slides into collection box 24 for centralized processing via guide plate 23. During the heating process, temperature control console 26 receives temperature feedback signals from temperature sensor 28 and the inside of shell 3 25, and dynamically adjusts the power of heating tube 27. Conveyor belt 2 adopts high-temperature resistant mesh belt, which, together with the heat preservation design of shell 3 25, realizes continuous operation from heating to cooling.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat treatment device for liquid forging of automotive swing arms, comprising a housing (1), characterized in that: A conveyor belt (2) is fixedly connected to the inner wall of the first housing (1). A second housing (3) is fixedly connected to the inner wall of the first housing (1). A cooling component is installed inside the second housing (3). A flipping component is installed inside the second housing (3). A wall scraping component is installed inside the first housing (1). A third housing (25) is fixedly connected to the inner wall of the first housing (1). A heating component is installed inside the third housing (25). A temperature sensor (28) is fixedly connected to the inner wall of the second housing (3). The flipping assembly includes a drive shaft (10), both ends of which are rotatably connected inside the housing (3). A gear (9) is fixedly connected to one end of the drive shaft (10). An electric telescopic rod (7) is fixedly connected inside the housing (1). A rack (8) is fixedly connected to the output end of the electric telescopic rod (7). The gear (9) meshes with the rack (8). A blade (11) is fixedly connected to the outer wall of the drive shaft (10).

2. The heat treatment device for liquid forging of automotive swing arms according to claim 1, characterized in that: The wall scraping assembly includes a second drive shaft (19), both ends of which are rotatably connected to the inside of a first housing (1). A second gear (17) is fixedly connected to one end of the second drive shaft (19), and sprockets (20) are fixedly connected to both ends of the second drive shaft (19). Another set of sprockets (20) is provided on the opposite side of the sprockets (20). A second connecting rod (21) is rotatably connected inside the first housing (1), both ends of which are fixedly connected to the inside of the other set of sprockets (20). The two sets of sprockets (20) are connected by a chain (29), and a scraper (22) is provided between the two chains (29).

3. The heat treatment device for liquid forging of automotive swing arms according to claim 2, characterized in that: The outer side of the housing (1) is provided with gear three (18), gear two (17) meshes with gear three (18), one end of the transmission shaft two (19) is fixedly connected to the output end of the motor (16), and a bracket (15) is fixedly connected to the lower surface of the motor (16).

4. The heat treatment device for liquid forging of automotive swing arms according to claim 1, characterized in that: A guide plate (23) is fixedly connected inside the housing (1), and a collection box (24) is provided inside the housing (1).

5. The heat treatment device for liquid forging of automotive swing arms according to claim 4, characterized in that: The cooling assembly includes an annular air pipe (6), the outer wall of which is fixedly connected to the inner wall of the housing (3). The annular air pipe (6) has several air outlets symmetrically arranged on its inner side. A connecting rod (13) is fixedly connected inside the housing (3). An electric telescopic rod (12) is fixedly connected inside the housing (3). Multiple guide vanes (14) are rotatably connected to the output end of the electric telescopic rod (12). The multiple guide vanes (14) are rotatably connected inside the connecting rod (13).

6. The heat treatment apparatus for liquid forging of automotive swing arms according to claim 5, characterized in that: An air pump (4) is fixedly connected to the top of the housing (3), and an air outlet pipe (5) is fixedly connected to the output end of the air pump (4). The air outlet pipe (5) is fixedly connected inside the annular air pipe (6).

7. The heat treatment device for liquid forging of automotive swing arms according to claim 1, characterized in that: The heating assembly includes a housing three (25), a temperature control platform (26) is fixedly connected to the outer wall of the housing three (25), and a heating tube (27) is fixedly connected inside the housing three (25), with both ends of the heating tube (27) fixedly connected inside the temperature control platform (26).

8. The heat treatment apparatus for liquid forging of automotive swing arms according to claim 7, characterized in that: The temperature control panel (26) is electrically connected to the temperature sensor (28), and the temperature sensor (28) is electrically connected to the electric telescopic rod (7).

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