A fast low temperature ion nitriding furnace

Abstract

The utility model relates to the technical field of ion nitriding furnaces, specifically a rapid low-temperature ion nitriding furnace, comprising a base, a furnace body is fixedly installed on the top of the base, and a furnace cover is arranged on the top of the furnace body, a mounting groove is provided on one side of the furnace cover, and a side frame is fixedly installed on the inner wall of the mounting groove, a first mounting plate is fixedly installed on the bottom of the side frame, and a second mounting plate is fixedly installed on one side of the top inner wall of the furnace cover, the bottom of the second mounting plate and the bottom of the first mounting plate are both provided with mounting holes, and the inner walls of the mounting holes are rotatably connected with mounting shafts through bearings. The utility model drives the mesh storage plate and the workpiece to be turned over, changes the placement state of the workpiece, facilitates nitriding treatment of various surfaces of the workpiece, avoids the problem that the position where the bottom of the workpiece contacts the solid area of ​​the mesh storage plate cannot be well nitrided, ensures that the entire workpiece surface is completely nitrided, and improves the nitriding effect of the entire low-temperature ion nitriding furnace.

Description

Technical Field

[0001] The utility model relates to the technical field of ion nitriding furnaces, in particular to a rapid low-temperature ion nitriding furnace. Background Art

[0002] Low temperature ion nitriding process is an ion nitriding process carried out at 450-500℃ (can be reduced to 350℃ in total). Due to the low processing temperature, the workpiece deformation is small, and the use of low temperature ion nitriding can also reduce the high temperature tempering temperature of the workpiece before treatment, so that the core of the workpiece maintains a high strength and hardness, which is beneficial to improve the performance of the workpiece.

[0003] After searching, the patent publication number CN220183364U is a surface low-temperature nitriding treatment device for nitrogen ion penetration, which specifically relates to the technical field of low-temperature nitriding of metal parts, including a base, a furnace body fixedly installed on the top of the base, a heater fixedly installed on the furnace body, a furnace cover on the top of the furnace body, a vertical cylinder fixedly connected to the bottom end of the furnace cover, a screw rod threadedly connected to the inside of the vertical cylinder, a mesh storage plate fixedly connected to the bottom end of the screw rod, a hanging ring assembly on the top of the furnace cover, a side ring fixedly provided on the fixed sleeve outside the furnace body, a vacuum pump fixedly installed on the top of the side ring, and a side ring fixedly connected to the top of the mesh storage plate. In the process of implementing this scheme, it is found that the following problems in the prior art have not been well solved: when the workpiece is nitrided, due to the use of a mesh storage plate to support the workpiece, there is a phenomenon of gas stagnation at the position where the bottom of the workpiece contacts the solid area of ​​the mesh storage plate, so that the nitriding effect is not good, so that the surface of the entire workpiece is not completely nitrided, affecting the nitriding effect of the entire workpiece. Therefore, it is urgent to design a fast low-temperature ion nitriding furnace to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a rapid low-temperature ion nitriding furnace to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A rapid low-temperature ion nitriding furnace comprises a base, a furnace body is fixedly mounted on the top of the base, a furnace cover is arranged on the top of the furnace body, a mounting groove is opened on one side of the furnace cover, a side frame is fixedly mounted on the inner wall of the mounting groove, a first mounting plate is fixedly mounted on the bottom of the side frame, and a second mounting plate is fixedly mounted on one side of the top inner wall of the furnace cover, mounting holes are opened on the bottom of the second mounting plate and the bottom of the first mounting plate, mounting shafts are rotatably connected to the inner walls of the mounting holes through bearings, a mesh storage tray is fixedly mounted between one ends of the two mounting shafts, a turning mechanism is arranged between the outer wall of one of the mounting shafts and the inside of the side frame, and a sealing assembly is arranged on the top of the mesh storage tray.

[0007] Furthermore, an air inlet pipe is fixedly installed on one side of the base, and a vacuum pump is fixedly installed on the top side of the base, and a vacuum tube is fixedly installed on the vacuum pump, one end of the vacuum tube and one end of the air inlet pipe are both connected to the interior of the furnace body, and valves are installed on the vacuum tube and the air inlet pipe.

[0008] Furthermore, a heater is fixedly installed at the middle position of the top of the base.

[0009] Furthermore, a lifting ring is fixedly installed at the middle position of the top of the furnace cover.

[0010] Furthermore, the flipping mechanism includes a gear fixed to the outer wall of one of the mounting shafts, and a movable opening is opened on one side of the bottom of the side frame, a rack is inserted into the inner wall of the movable opening, one side of the rack is meshed with the outer wall of the gear, a threaded rod is rotatably connected to the top inner wall of the side frame, and a forward and reverse motor for driving the threaded rod to rotate is fixedly installed on the bottom inner wall of the side frame, a lifting seat is screwed on the outer wall of the threaded rod and affixed to the inner wall of the side frame, and the bottom of the lifting seat is fixed to the top of the rack.

[0011] Furthermore, a sealing seat is fixed on the top of the movable opening and is attached to the outer wall of the rack.

[0012] Furthermore, the sealing assembly includes a mesh cover hinged on the mesh storage tray, and a lock seat is fixed to one side of the mesh cover and one side of the mesh storage tray, the two lock seats are fixedly connected by screws and nuts, and a handle is fixed to the outer wall of the lock seat located above.

[0013] Furthermore, a mesh grille is fixedly mounted on the inner wall of the mesh storage tray.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] In the utility model, the mesh placement plate and the sealing assembly are used to form the workpiece placement area, and the mesh placement plate and the workpiece can be driven to perform a flipping process under the action of the flipping mechanism, so as to change the placement state of the workpiece, facilitate nitriding treatment of various surfaces of the workpiece, avoid the problem that the bottom of the workpiece and the position where the solid area of ​​the mesh placement plate contacts cannot be well nitrided, ensure that the entire workpiece surface is completely nitrided, and improve the nitriding effect of the entire low-temperature ion nitriding furnace;

[0016] In the utility model, the mesh grille is used to separately place and process the workpieces, so as to avoid the problem of excessive activity and serious damage of the workpieces during flipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a rapid low-temperature ion nitriding furnace.

[0018] Figure 2 It is a front view cross-section of a rapid low-temperature ion nitriding furnace.

[0019] Figure 3 The present invention is a schematic diagram of the mounting groove and mounting shaft structure of a rapid low-temperature ion nitriding furnace.

[0020] Figure 4 The diagram is a schematic diagram of the forward and reverse motor and threaded rod structure of a rapid low-temperature ion nitriding furnace.

[0021] Figure 5 The figure is a schematic diagram of a handle frame and mesh grille structure of a rapid low-temperature ion nitriding furnace.

[0022] In the figure: 1. base; 2. furnace body; 3. air inlet pipe; 4. furnace cover; 5. lifting ring; 6. vacuum pump; 7. vacuum tube; 8. heater; 9. side frame; 10. first mounting plate; 11. mesh storage tray; 12. second mounting plate; 13. rack; 14. mounting groove; 15. mounting shaft; 16. gear; 17. mesh cover; 18. lock seat; 19. forward and reverse motor; 20. sealing seat; 21. threaded rod; 22. lifting seat; 23. handle frame; 24. mesh grille. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] See also Figure 1-Figure 5In the embodiment of the utility model, a rapid low-temperature ion nitriding furnace comprises a base 1, a furnace body 2 is fixedly installed on the top of the base 1, and a furnace cover 4 is arranged on the top of the furnace body 2, a hanging ring 5 is fixedly installed at the middle position of the top of the furnace cover 4, a mounting groove 14 is opened on one side of the furnace cover 4, and a side frame 9 is fixedly installed on the inner wall of the mounting groove 14, a first mounting plate 10 is fixedly installed on the bottom of the side frame 9, and a second mounting plate 12 is fixedly installed on one side of the top inner wall of the furnace cover 4, and the bottom of the second mounting plate 12 and the first mounting plate 10 are fixedly installed on the inner wall of the top of the furnace cover 4. The bottom of the mounting plate 10 is provided with mounting holes, and the inner walls of the mounting holes are rotatably connected with mounting shafts 15 through bearings. A mesh storage tray 11 is fixedly installed between one end of the two mounting shafts 15, and a flip mechanism is provided on the outer wall of one of the mounting shafts 15 and the inside of the side frame 9. The flip mechanism includes a gear 16 fixed to the outer wall of one of the mounting shafts 15, and a movable opening is provided on one side of the bottom of the side frame 9, and a rack 13 is inserted into the inner wall of the movable opening, and one side of the rack 13 is meshed with the outer wall of the gear 16, and the side The top inner wall of the frame 9 is rotatably connected with a threaded rod 21, and the bottom inner wall of the side frame 9 is fixedly installed with a forward and reverse motor 19 for driving the threaded rod 21 to rotate. The outer wall of the threaded rod 21 is screwed with a lifting seat 22 attached to the inner wall of the side frame 9, and the bottom of the lifting seat 22 is fixed to the top of the rack 13. The top of the movable opening is fixed with a sealing seat 20 attached to the outer wall of the rack 13. The top of the mesh storage tray 11 is provided with a sealing assembly, and the sealing assembly includes a mesh cover 17 hinged on the mesh storage tray 11. A lock seat 18 is fixed to one side of the mesh cover 17 and one side of the mesh storage tray 11, and the two lock seats 18 are fixedly connected by screws and nuts. A handle frame 23 is fixed to the outer wall of the lock seat 18 located above. The mesh storage tray 11 and the workpiece are turned over by the action of the flipping mechanism to change the placement state of the workpiece, which is convenient for nitriding treatment of various surfaces of the workpiece, avoiding the problem that the bottom of the workpiece is not well nitrided at the position where it contacts the solid area of ​​the mesh storage plate, and ensuring that the entire workpiece surface is completely nitrided.

[0026] Specifically, an air inlet pipe 3 is fixedly installed on one side of the base 1, and a vacuum pump 6 is fixedly installed on one side of the top of the base 1, and a vacuum tube 7 is fixedly installed on the vacuum pump 6, one end of the vacuum tube 7 and one end of the air inlet pipe 3 are both connected to the interior of the furnace body 2, valves are installed on the vacuum tube 7 and the air inlet pipe 3, and a heater 8 is fixedly installed in the middle position of the top of the base 1 to facilitate the introduction of nitriding gas and ensure the vacuum environment before nitriding and the temperature during nitriding.

[0027] Example 2

[0028] See also Figure 2 and Figure 5 The difference from the first embodiment is that a mesh grille 24 is fixedly mounted on the inner wall of the mesh storage tray 11, and each workpiece is placed separately through the mesh grille 24 to avoid the problem of excessive activity of the workpiece and serious damage when turning it over.

[0029] The working principle of the utility model is as follows: when in use, the user drives the lifting ring 5 and the furnace cover 4 upwards through the crane, opens the mesh cover 17 of the sealing assembly, and is convenient for taking and placing the workpiece. During low-temperature nitriding, the forward and reverse motor 19 in the flipping mechanism is used to drive the threaded rod 21 to rotate, and the height of the lifting seat 22 and the rack 13 is adjusted. The meshing action of the rack 13 and the gear 16 drives the installation shaft 15, the mesh storage plate 11 and the workpiece to flip, and the placement state of the workpiece is changed, so that the nitriding treatment is convenient for each surface of the workpiece, and the nitriding is ensured to be complete.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. A rapid low-temperature ion nitriding furnace, comprising a base (1), characterized in that: A furnace body (2) is fixedly mounted on the top of the base (1), and a furnace cover (4) is arranged on the top of the furnace body (2); a mounting groove (14) is provided on one side of the furnace cover (4), and a side frame (9) is fixedly mounted on the inner wall of the mounting groove (14); a first mounting plate (10) is fixedly mounted on the bottom of the side frame (9), and a second mounting plate (12) is fixedly mounted on one side of the inner wall of the top of the furnace cover (4); mounting holes are provided on the bottom of the second mounting plate (12) and the bottom of the first mounting plate (10); mounting shafts (15) are rotatably connected to the inner walls of the mounting holes via bearings; a mesh storage tray (11) is fixedly mounted between one end of the two mounting shafts (15); a turning mechanism is provided between the outer wall of one of the mounting shafts (15) and the inside of the side frame (9); and a sealing component is provided on the top of the mesh storage tray (11).

2. A rapid low-temperature ion nitriding furnace according to claim 1, characterized in that: An air intake pipe (3) is fixedly mounted on one side of the base (1), and a vacuum pump (6) is fixedly mounted on one side of the top of the base (1), and a vacuum tube (7) is fixedly mounted on the vacuum pump (6), one end of the vacuum tube (7) and one end of the air intake pipe (3) are both in communication with the interior of the furnace body (2), and valves are mounted on the vacuum tube (7) and the air intake pipe (3).

3. The rapid low-temperature ion nitriding furnace according to claim 1, characterized in that: A heater (8) is fixedly mounted at the middle position of the top of the base (1).

4. The rapid low-temperature ion nitriding furnace according to claim 1, characterized in that: A lifting ring (5) is fixedly mounted at the middle position of the top of the furnace cover (4).

5. The rapid low-temperature ion nitriding furnace according to claim 1, characterized in that: The turning mechanism comprises a gear (16) fixed to the outer wall of one of the mounting shafts (15), and a movable opening is opened on one side of the bottom of the side frame (9), a rack (13) is inserted into the inner wall of the movable opening, and one side of the rack (13) is meshed with the outer wall of the gear (16), a threaded rod (21) is rotatably connected to the inner wall of the top of the side frame (9), and a forward and reverse motor (19) for driving the threaded rod (21) to rotate is fixedly installed on the inner wall of the bottom of the side frame (9), a lifting seat (22) attached to the inner wall of the side frame (9) is screwed on the outer wall of the threaded rod (21), and the bottom of the lifting seat (22) is fixed to the top of the rack (13).

6. A rapid low-temperature ion nitriding furnace according to claim 5, characterized in that: A sealing seat (20) is fixed on the top of the movable opening and is fitted on the outer wall of the rack (13).

7. The rapid low-temperature ion nitriding furnace according to claim 1, characterized in that: The sealing assembly comprises a mesh cover (17) hinged on the mesh storage tray (11), and a lock seat (18) is fixed to one side of the mesh cover (17) and one side of the mesh storage tray (11), the two lock seats (18) are fixedly connected by screws and nuts, and a handle frame (23) is fixed to the outer wall of the lock seat (18) located at the top.

8. The rapid low-temperature ion nitriding furnace according to claim 7, characterized in that: A mesh grille (24) is fixedly mounted on the inner wall of the mesh storage tray (11).

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