Heat treatment equipment for plate spring machining

Abstract

The utility model discloses heat treatment equipment for plate spring machining, and relates to the technical field of plate spring machining. The top surface of the heating cylinder is fixedly connected with a heat insulation cover, a first electric cylinder is arranged above the heat insulation cover, the output shaft end of the first electric cylinder is fixedly connected with a lengthening shaft, the side wall of the lengthening shaft is fixedly sleeved with a bearing disc, the bearing disc is located in a cylinder opening of the heating cylinder, and the bearing disc is matched with the output end of the heating cylinder; the output end of the heating cylinder is rotatably connected with an opening and closing cover, the bottom face of the heating cylinder is fixedly connected with a water storage cylinder, the output end of the heating cylinder extends into a cylinder opening of the water storage cylinder, the inner side wall of the water storage cylinder is fixedly connected with a cavity plate, the cavity plate comprises a cavity opening, and a second electric cylinder is hinged to the interior of the cavity opening and comprises a telescopic shaft. The shaft end of the telescopic shaft is hinged to the opening and closing cover. According to the plate spring heat treatment device, heat treatment can be conveniently conducted on plate springs, the plate springs do not need to be placed on multiple stations to be machined, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of leaf spring processing, in particular to heat treatment equipment for leaf spring processing. Background Art

[0002] Leaf spring, also known as leaf spring, is a plate-shaped spring composed of at least one piece of spring steel stacked together. The heat treatment process of leaf spring during processing mainly includes quenching and medium-temperature tempering. Quenching is to heat the leaf spring to above the critical temperature and then quickly cool it to obtain high hardness and strength. The purpose of this step is to increase the hardness and strength of the steel, but this is accompanied by an increase in the brittleness of the steel. In order to reduce this brittleness, tempering treatment is required. Medium-temperature tempering is to reheat the steel to an appropriate temperature after quenching and hold it for a specific holding time to cause a certain degree of change in its internal structure, thereby improving the toughness and ductility of the steel and ensuring it has good mechanical properties.

[0003] However, when heat treating leaf springs, the leaf springs need to be placed in multiple workstations for heat treatment, resulting in poor processing efficiency and cumbersome operations. To address the above problems, the inventors have proposed a heat treatment device for leaf spring processing to solve the above problems. Utility Model Content

[0004] In order to solve the problems of poor processing efficiency and complicated operation during the heat treatment of leaf springs, the purpose of the utility model is to provide a heat treatment device for leaf spring processing.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a heat treatment equipment for leaf spring processing, comprising a heating cylinder, the top surface of the heating cylinder is fixedly connected to a heat insulation cover, a first electric cylinder is arranged above the heat insulation cover, the output shaft end of the first electric cylinder is fixedly connected to an extension shaft, the side wall of the extension shaft is fixedly sleeved with a supporting tray, the output end of the heating cylinder is rotatably connected to an opening and closing cover, the bottom surface of the heating cylinder is fixedly connected to a water storage cylinder, the output end of the heating cylinder extends to the cylinder mouth of the water storage cylinder, the inner side wall of the water storage cylinder is fixedly connected to a cavity plate, the cavity plate includes a cavity mouth, a second electric cylinder is hinged in the cavity mouth, the second electric cylinder includes a telescopic shaft, the shaft end of the telescopic shaft is hinged to the opening and closing cover.

[0006] Preferably, a heat insulation pad is fixedly connected to the top surface of the heat insulation cover. A base is provided on the side wall of the first electric cylinder, and the bottom surface of the base is fixedly connected to the top surface of the heat insulation pad. The lengthening shaft is made of a high-temperature resistant material. The lengthening shaft penetrates through the heat insulation cover and is slidably connected to the heat insulation cover. Both the heat insulation cover and the heat insulation pad have high-temperature resistant properties to prevent the high temperature in the heating cylinder from damaging the first electric cylinder. The first electric cylinder is installed through the base. When the first electric cylinder is started, the lengthening shaft can drive the bearing tray to lift and lower under the action of the output shaft of the first electric cylinder. Thus, the leaf spring on the bearing tray can be lifted and lowered. The leaf spring is quenched in the heating cylinder. When the leaf spring is heated above the critical temperature, then the opening and closing cover is opened, and the bearing tray is lowered into the water storage cylinder, so as to be rapidly cooled, and its internal structure is transformed into martensite, thereby improving the hardness and strength of the leaf spring.

[0007] Preferably, an opening and closing door is provided on the side wall of the heating cylinder. A handle is fixedly connected to the side of the opening and closing door facing away from the heating cylinder. An air port is provided through the side wall of the heating cylinder, and a dust-proof net is fixedly connected to the port of the air port. The opening and closing door can be opened through the handle, so that the leaf spring in the heating cylinder can be taken and placed. The bearing tray is located inside the opening of the heating cylinder, and the bearing tray is matched with the output end of the heating cylinder. The bearing tray is used for supporting the leaf spring. There are three bearing trays, and the three bearing trays are arranged in an array from top to bottom. In actual use, the number of bearing trays can be increased or decreased according to requirements.

[0008] Preferably, a water inlet pipe is fixedly inserted and connected to the upper part of the side wall of the water storage cylinder, and a water outlet pipe is fixedly inserted and connected to the lower part of the side wall of the water storage cylinder. Flow valves are provided on the side walls of both the water inlet pipe and the water outlet pipe. Water can be injected into the water storage cylinder through the water inlet pipe, and the water liquid in the water storage cylinder can be discharged through the water outlet pipe. A hinge seat is provided on the end face of the opening and closing cover, and the movable end face of the hinge seat is fixedly connected to the side wall of the cavity plate. An electric control box is fixedly connected to the outer side wall of the water storage cylinder. An electric control wire is provided on the side wall of the cavity plate. One end of the electric control wire is electrically connected to the electric control box, and the other end of the electric control wire is electrically connected to the second electric cylinder.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows: it is convenient to perform heat treatment on the leaf spring. After quenching, the leaf spring on the bearing tray can be lowered into the water storage cylinder for rapid cooling, so that its internal structure is transformed into martensite, thereby improving the hardness and strength of the leaf spring. And after cooling, it is convenient to perform medium-temperature tempering treatment on the leaf spring to eliminate the internal stress and brittleness generated during the quenching process. When performing quenching, cooling and medium-temperature tempering, it is not necessary to place the leaf spring at multiple workstations for processing, improving the processing efficiency. Description of the Drawings

[0010] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0012] Figure 2 It is a schematic diagram of the internal structure of the heating cylinder of the present invention.

[0013] Figure 3 It is a schematic diagram of the cooperation between the opening and closing cover and the second electric cylinder of the present invention.

[0014] In the figure: 1. Heating cylinder; 2. Opening and closing door; 3. Air port; 4. Heat insulation cover; 5. Heat insulation pad; 6. First electric cylinder; 7. Base; 8. Extension shaft; 9. Bearing tray; 10. Water storage cylinder; 11. Water inlet pipe; 12. Water outlet pipe; 13. Electric control box; 14. Chamber plate; 15. Chamber opening; 16. Second electric cylinder; 17. Telescopic shaft; 18. Opening and closing cover; 19. Hinge seat; 20. Electric control wire. Specific embodiments

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0016] Embodiment: As Figures 1-3 shown, the present invention provides a heat treatment device for leaf spring processing, including a heating cylinder 1. A heat insulation cover 4 is fixedly connected to the top surface of the heating cylinder 1. A first electric cylinder 6 is arranged above the heat insulation cover 4. The output shaft end of the first electric cylinder 6 is fixedly connected to an extension shaft 8. A bearing tray 9 is fixedly sleeved on the side wall of the extension shaft 8. An opening and closing cover 18 is rotatably connected to the output end of the heating cylinder 1. A water storage cylinder 10 is fixedly connected to the bottom surface of the heating cylinder 1. The output end of the heating cylinder 1 extends into the cylinder opening of the water storage cylinder 10. A chamber plate 14 is fixedly connected to the inner side wall of the water storage cylinder 10. The chamber plate 14 includes a chamber opening 15. A second electric cylinder 16 is hinged in the chamber opening 15. The second electric cylinder 16 includes a telescopic shaft 17. The shaft end of the telescopic shaft 17 is hinged to the opening and closing cover 18.

[0017] The top surface of the heat insulation cover 4 is fixedly connected with a heat insulation pad 5. A base 7 is arranged on the side wall of the first electric cylinder 6, and the bottom surface of the base 7 is fixedly connected with the top surface of the heat insulation pad 5. The extension shaft 8 is made of high-temperature resistant material. The extension shaft 8 penetrates through the heat insulation cover 4 and is slidably connected with the heat insulation cover 4.

[0018] By adopting the above technical solution, both the heat insulation cover 4 and the heat insulation pad 5 have high-temperature resistance to prevent the high temperature in the heating cylinder 1 from damaging the first electric cylinder 6. The first electric cylinder 6 is installed through the base 7. When the first electric cylinder 6 is started, the extension shaft 8 can drive the bearing tray 9 to lift under the action of the output shaft of the first electric cylinder 6. Furthermore, the leaf spring on the bearing tray 9 can be lifted. The leaf spring is quenched in the heating cylinder 1. When the leaf spring is heated above the critical temperature, then the opening and closing cover 18 is opened, and the bearing tray 9 is lowered into the water storage cylinder 10 for rapid cooling, so that its internal structure is transformed into martensite, thereby improving the hardness and strength of the leaf spring.

[0019] An opening and closing door 2 is arranged on the side wall of the heating cylinder 1. A handle is fixedly connected to the side of the opening and closing door 2 facing away from the heating cylinder 1. An air port 3 penetrates through the side wall of the heating cylinder 1, and a dust-proof net is fixedly connected to the port of the air port 3.

[0020] By adopting the above technical solution, the opening and closing door 2 can be opened through the handle, so that the leaf spring in the heating cylinder 1 can be taken out and put in.

[0021] The bearing tray 9 is located inside the barrel opening of the heating cylinder 1 and is matched with the output end of the heating cylinder 1.

[0022] By adopting the above technical solution, the bearing tray 9 is used to support the leaf spring. There are three bearing trays 9, and the three bearing trays 9 are arranged in an array from top to bottom. In actual use, the number of bearing trays 9 can be increased or decreased according to requirements.

[0023] The upper part of the side wall of the water storage cylinder 10 is inserted and fixedly connected with a water inlet pipe 11, and the lower part of the side wall of the water storage cylinder 10 is inserted and fixedly connected with a water outlet pipe 12. Flow valves are arranged on the side walls of the water inlet pipe 11 and the water outlet pipe 12.

[0024] By adopting the above technical solution, water can be injected into the water storage cylinder 10 through the water inlet pipe 11, and the water liquid in the water storage cylinder 10 can be discharged through the water outlet pipe 12.

[0025] A hinge seat 19 is arranged on the end face of the opening and closing cover 18, and the movable end face of the hinge seat 19 is fixedly connected with the side wall of the cavity plate 14.

[0026] By adopting the above technical solution, an electric control box 13 is fixedly connected to the outer side wall of the water storage cylinder 10, an electric control wire 20 is arranged on the side wall of the cavity plate 14, one end of the electric control wire 20 is electrically connected to the electric control box 13, and the other end of the electric control wire 20 is electrically connected to the second electric cylinder 16.

[0027] Working principle: When the present utility model is in use, the opening and closing door 2 can be opened through the handle, so that the leaf spring in the heating cylinder 1 can be taken and placed. After the leaf spring is placed on the bearing tray 9, the opening and closing door 2 is closed, and the leaf spring is quenched in the heating cylinder 1;

[0028] When the leaf spring is heated above the critical temperature, then, the second electric cylinder 16 is started. Under the action of the telescopic shaft 17 and the hinge seat 19, the opening and closing cover 18 can be opened. Then, the first electric cylinder 6 is started, and the lengthening shaft 8 can drive the bearing tray 9 to fall under the action of the output shaft of the first electric cylinder 6. Furthermore, the leaf spring on the bearing tray 9 can be lowered into the water storage cylinder 10, so as to be rapidly cooled, and its internal structure is transformed into martensite, thereby improving the hardness and strength of the leaf spring;

[0029] Then, the bearing tray 9 is raised again, and the opening and closing cover 18 is closed. The leaf spring is subjected to medium-temperature tempering treatment through the heating cylinder 1, so as to eliminate the internal stress and brittleness generated during the quenching process, and at the same time maintain a certain hardness and strength, improve the toughness and ductility of the leaf spring, and ensure that it has good mechanical properties.

[0030] Obviously, those skilled in the art can make various modifications and variations to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these modifications and variations.

Claims

1. A heat treatment device for leaf spring processing, including a heating cylinder (1), characterized in that: The top surface of the heating cylinder (1) is fixedly connected with a heat insulation cover (4). Above the heat insulation cover (4), a first electric cylinder (6) is arranged. The output shaft end of the first electric cylinder (6) is fixedly connected with an extension shaft (8). A bearing tray (9) is fixedly sleeved on the side wall of the extension shaft (8). The output end of the heating cylinder (1) is rotatably connected with an opening and closing cover (18). The bottom surface of the heating cylinder (1) is fixedly connected with a water storage cylinder (10). The output end of the heating cylinder (1) extends into the mouth of the water storage cylinder (10). The inner side wall of the water storage cylinder (10) is fixedly connected with a cavity plate (14). The cavity plate (14) includes a cavity opening (15). A second electric cylinder (16) is hinged in the cavity opening (15). The second electric cylinder (16) includes a telescopic shaft (17). The shaft end of the telescopic shaft (17) is hinged with the opening and closing cover (18).

2. The heat treatment equipment for leaf spring processing according to claim 1, characterized in that, The top surface of the heat insulation cover (4) is fixedly connected with a heat insulation pad (5). A base (7) is arranged on the side wall of the first electric cylinder (6). The bottom surface of the base (7) is fixedly connected with the top surface of the heat insulation pad (5).

3. A heat treatment device for leaf spring processing according to claim 1, characterized in that, An opening and closing door (2) is arranged on the side wall of the heating cylinder (1). A handle is fixedly connected to the side of the opening and closing door (2) facing away from the heating cylinder (1).

4. A heat treatment device for leaf spring processing according to claim 1, characterized in that, An air port (3) is arranged through the side wall of the heating cylinder (1). A dust-proof net is fixedly connected to the port of the air port (3).

5. A heat treatment device for leaf spring processing according to claim 1, characterized in that, The extension shaft (8) is made of a high-temperature resistant material. The extension shaft (8) penetrates through the heat insulation cover (4), and the extension shaft (8) is slidably connected with the heat insulation cover (4).

6. The heat treatment equipment for leaf spring processing according to claim 1, wherein, The bearing tray (9) is located inside the mouth of the heating cylinder (1), and the bearing tray (9) is matched with the output end of the heating cylinder (1).

7. The heat treatment equipment for leaf spring processing according to claim 1, characterized in that, A water inlet pipe (11) is fixedly inserted and connected to the upper part of the side wall of the water storage cylinder (10). A water outlet pipe (12) is fixedly inserted and connected to the lower part of the side wall of the water storage cylinder (10). Flow valves are arranged on the side walls of both the water inlet pipe (11) and the water outlet pipe (12).

8. The heat treatment equipment for leaf spring processing according to claim 1, wherein, A hinge seat (19) is arranged on the end face of the opening and closing cover (18). The movable end face of the hinge seat (19) is fixedly connected with the side wall of the cavity plate (14).

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