Vacuum heat treatment furnace for die steel

Abstract

The utility model discloses a vacuum heat treatment furnace for die steel, which comprises a furnace body mechanism, comprising a vacuum sintering furnace body, a sealing frame fixedly connected with the side face of the vacuum sintering furnace body, a mounting plate fixedly connected to the opposite surface of the vacuum sintering furnace body, a hydraulic cylinder fixedly connected with the mounting plate, first connecting plates fixedly connected with the other end of the hydraulic cylinder, and a sealing cover connected to the position between the opposite first connecting plates. The center position of the surface of the sealing cover is fixedly connected with a fixed column; the pushing mechanism comprises a fixed frame fixedly connected with the sealing cover; according to the die steel placing device, through the designed furnace body mechanism, the pushing mechanism and the object placing mechanism, a hydraulic cylinder is started, so that a sealing cover moves towards the outer side, a connecting half frame, an adjusting frame and a die steel placing frame also move towards the outer side, the die steel placing frame and a die steel workpiece can be directly taken down from the outer side of the furnace body, and the situation that the die steel workpiece is damaged due to high temperature is avoided; and the die steel workpiece can be taken out of the furnace body.

Description

Technical Field

[0001] This utility model belongs to the field of vacuum heat treatment furnace technology, and specifically relates to a vacuum heat treatment furnace for mold steel. Background Technology

[0002] A vacuum heat treatment furnace is a device that heats materials under vacuum conditions. There are various types of vacuum furnaces, among which small vacuum muffle furnaces, also known as vacuum sintering furnaces, are heat treatment devices that use electric heating elements to heat materials inside the furnace under vacuum conditions and perform various heat treatment, sintering and annealing processes at high temperatures. They are suitable for processing metals such as mold steel and stainless steel.

[0003] When using a vacuum muffle furnace for mold steel workpieces, the furnace lid is a flip-top structure that needs to be opened before the workpiece can be removed from the furnace cavity. Since the workpiece is heated inside the furnace, its surface temperature is high. Although high-temperature resistant gloves can be used to remove it, the internal cavity of the vacuum muffle furnace is also hot. Removing the hot mold steel workpiece directly from the high-temperature cavity poses a safety hazard and may result in damage. This is a drawback.

[0004] Existing vacuum muffle furnaces used for heat treatment of mold steel workpieces have the problem of not having a movable design for removing and placing them outside the furnace. To address this, this application proposes a vacuum heat treatment furnace for mold steel. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum heat treatment furnace for mold steel, so as to solve the problem mentioned in the background art of the lack of a moving design for moving high-temperature mold steel workpieces inside the vacuum muffle furnace to the outside of the furnace for handling.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vacuum heat treatment furnace for mold steel, comprising...

[0007] The furnace body mechanism includes a vacuum sintering furnace body, a sealing frame fixedly connected to the side of the vacuum sintering furnace body, a mounting plate fixedly connected to the opposite surface of the vacuum sintering furnace body, a hydraulic cylinder fixedly connected to the mounting plate, a first connecting plate fixedly connected to the other end of the hydraulic cylinder, and a sealing cover connected between the opposing first connecting plates. A fixing column is fixedly connected to the center of the surface of the sealing cover.

[0008] The pushing mechanism includes a fixed frame fixedly connected to the sealing cover, an electric push rod and a pushing rod fixedly connected inside the fixed frame, an inner sealing frame slidably connected to the sealing cover, and a second connecting plate distributed inside the sealing cover and fixedly connected to the inner sealing frame and the pushing rod;

[0009] The placement assembly for mold steel includes a connecting half-frame fixedly connected to a fixed column, a rotating column rotatably connected to the connecting half-frame, an adjustment frame fixedly connected between opposing rotating columns, and a split mold steel placement frame. The mold steel placement frame is fixedly connected to a slider and a slide rail slidably connected to the slider. A connecting block is provided on the opposite surface of the mold steel placement frame.

[0010] Preferably, the surface of the sealing frame is provided with a frame groove that mates with the inner sealing frame.

[0011] Preferably, the two ends of the second connecting plate are fixedly connected to the inner sealing frame by screws, and the center of the second connecting plate is fixed to one end of the push rod by screws.

[0012] Preferably, the fixed frame has a first square groove and a second square groove inside, the electric push rod is located in the first square groove, and the push rod is located in the second square groove.

[0013] Preferably, the connecting half-frame has a "U" shaped structure, and a fixed hemisphere is fixedly connected to the opposite surface of the connecting half-frame, and the outer surface of the adjusting frame is tangent to the fixed hemisphere.

[0014] Preferably, the slide rail is fixedly connected to the inner surface of the adjustment frame by screws, and the slider has a groove that mates with the slide rail.

[0015] Preferably, the connecting block has a cuboid structure, and an extraction hole is provided at the center of the connecting block.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this utility model, through the designed furnace body mechanism, pushing mechanism and placement mechanism, the hydraulic cylinder is activated, causing the sealing cover to move outward, and the connecting half frame, adjusting frame and mold steel placement frame also move outward. The mold steel placement frame and mold steel workpiece can be directly removed from the outside of the furnace body, avoiding damage due to high temperature, and achieving the effect of removing mold steel workpieces from outside the furnace body. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of the adjustment frame of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the sealing frame of this utility model;

[0021] Figure 4 This is a cross-sectional view of the sealing cap of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the inner sealing frame of this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of the adjustment frame of this utility model;

[0024] In the diagram: 1. Vacuum sintering furnace body; 5. Mold steel placement frame; 11. Mounting plate; 12. Sealing frame; 21. Hydraulic cylinder; 22. Sealing cover; 23. First connecting plate; 31. Fixing frame; 32. Electric push rod; 33. Push rod; 34. Inner sealing frame; 35. Second connecting plate; 41. Connecting half frame; 42. Rotating column; 43. Adjusting frame; 51. Connecting block; 52. Slider; 53. Slide rail; 121. Frame groove; 221. Fixing column; 421. Fixing hemisphere. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1 to 6This utility model provides a technical solution: a vacuum heat treatment furnace for mold steel, including a furnace body mechanism, comprising a vacuum sintering furnace body 1, a sealing frame 12 fixedly connected to the side of the vacuum sintering furnace body 1, a mounting plate 11 fixedly connected to the opposite surface of the vacuum sintering furnace body 1, a hydraulic cylinder 21 fixedly connected to the mounting plate 11, a first connecting plate 23 fixedly connected to the other end of the hydraulic cylinder 21, and a sealing cover 22 connected between opposing first connecting plates 23. A fixing post 221 is fixedly connected to the center of the surface of the sealing cover 22. The structure and principle of the vacuum sintering furnace body 1 are conventional technologies and will not be described in detail in this application. When the furnace body in this application is opened, the hydraulic cylinder 21 is activated and becomes an extension cylinder. In the extended state, the sealing cover 22 moves outward, separating it from the tightly sealed contact with the sealing frame 12, facilitating the handling of the mold steel workpiece A. The pushing mechanism includes a fixed frame 31 fixedly connected to the sealing cover 22, an electric push rod 32 and a pushing rod 33 fixedly connected inside the fixed frame 31, an inner sealing frame 34 slidably connected to the sealing cover 22, and a second connecting plate 35 distributed inside the sealing cover 22 and fixedly connected to the inner sealing frame 34 and the pushing rod 33. When the furnace body in this application is in the closed state, the hydraulic cylinder 21 is activated and enters the shortened state, causing the sealing cover 22 to move towards the sealing frame 12, resulting in a tightly sealed contact between the sealing cover 22 and the sealing frame 12. To facilitate heat treatment of the mold steel workpiece A, the electric actuator 32 is activated, causing the push rod 33 to push the second connecting plate 35 and the inner sealing frame 34 to move. The inner sealing frame 34 is embedded inside the sealing frame 12, achieving a further sealing effect. The placement assembly for placing the mold steel A includes a connecting half-frame 41 fixedly connected to the fixed column 221, a rotating column 42 rotatably connected to the connecting half-frame 41, an adjusting frame 43 fixedly connected between opposing rotating columns 42, and a split mold steel placement frame 5. The mold steel placement frame 5 is fixedly connected to a slider 52 and a slide rail 53 slidably connected to the slider 52. A connecting block 51 is provided on the opposite surface of the mold steel placement frame 5. The mold steel placement frame 5 and the rotating column 42 can rotate, facilitating the adjustment of the angle of the mold steel placement frame 5 inside the connecting half-frame 41, thereby changing the angle of the mold steel workpiece A. The mold steel placement frame 5 and the adjustment frame 43 are a combined structure, which can be installed together with the mold steel placement frame 5 containing the mold steel workpiece A. After the mold steel workpiece A is heat-treated, the mold steel placement frame 5 can be removed directly from the outside of the furnace body, and the mold steel workpiece A can be removed at the same time, avoiding damage due to high temperature. It has the effect of removing the mold steel workpiece A from outside the furnace body, avoiding damage. The distance between the hydraulic cylinder 21 and the adjustment frame 43 can be designed according to the actual required distance to achieve the purpose of not affecting the removal and placement of the mold steel workpiece A.

[0027] In this embodiment, a frame groove 121 is provided on the surface of the sealing frame 12 to cooperate with the inner sealing frame 34. The inner sealing frame 34 is embedded in the interior of the sealing frame 12 to achieve a further sealing effect.

[0028] In this embodiment, the two ends of the second connecting plate 35 are fixedly connected to the inner sealing frame 34 by screws, and the center position of the second connecting plate 35 is fixed to one end of the push rod 33 by screws. The second connecting plate 35 and the inner sealing frame 34 are connected as a whole and can move in the same direction.

[0029] In this embodiment, the fixed frame 31 is provided with a first square groove and a second square groove. The electric push rod 32 is located in the first square groove, and the push rod 33 is located in the second square groove. When the electric push rod 32 is in action, it can push the push rod 33 to move. The push rod 33 and the sealing cover 22 are subjected to conventional sealing treatment, such as setting a sealing ring.

[0030] In this embodiment, the connecting half-frame 41 has a "U" shaped structure. A fixed hemisphere 421 is fixedly connected to the opposite surface of the connecting half-frame 41. The outer surface of the adjusting frame 43 is tangent to the fixed hemisphere 421. The fixed hemisphere 421 can hold the adjusting frame 43 in place, preventing the adjusting frame 43 from tilting significantly.

[0031] In this embodiment, the slide rail 53 is fixedly connected to the inner surface of the adjustment frame 43 by screws. The slider 52 is provided with a groove that cooperates with the slide rail 53. The slide rail 53 serves to limit the slider 52, so that the mold steel placement frame 5 is placed accurately.

[0032] In this embodiment, the connecting block 51 is a cuboid structure, and a take-out hole is provided at the center of the connecting block 51. The high-temperature mold steel placement frame 5 can be taken out by a tool. The geometry of the take-out hole is matched with the take-out tool.

[0033] Working principle and usage process of this utility model:

[0034] When removing the mold steel workpiece A after heat treatment is completed inside the vacuum sintering furnace 1

[0035] When the vacuum sintering furnace body 1 is in the closed heat treatment state, the inner sealing frame 34 and the sealing frame 12 are in a locked sealing state, the hydraulic cylinder 21 is in a shortened state, the electric push rod 32 is in an extended state, and the sealing cover 22 and the sealing frame 12 are in a tightly sealed fit state.

[0036] The process of removing mold steel workpiece A is as follows: the electric push rod 32 is activated and enters a shortened state, causing the push rod 33 to move the second connecting plate 35 and the inner sealing frame 34. The inner sealing frame 34 leaves the interior of the sealing frame 12, achieving the effect of separating the inner sealing frame 34. The hydraulic cylinder 21 is activated and enters an extended state, causing the sealing cover 22 to move outward. The sealing cover 22 and the sealing frame 12 are separated from the tightly sealed fit. The connecting half frame 41, the adjusting frame 43 and the split mold steel placement frame 5 move outward, allowing the mold steel placement frame 5 and mold steel workpiece A to be removed directly from the outside of the furnace body, avoiding damage due to high temperature. This achieves the effect of removing mold steel workpiece A from outside the furnace body.

[0037] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum heat treatment furnace for mold steel, characterized in that: include The furnace body structure includes a vacuum sintering furnace body (1), a sealing frame (12) fixedly connected to the side of the vacuum sintering furnace body (1), a mounting plate (11) fixedly connected to the opposite surface of the vacuum sintering furnace body (1), a hydraulic cylinder (21) fixedly connected to the mounting plate (11), a first connecting plate (23) fixedly connected to the other end of the hydraulic cylinder (21), and a sealing cover (22) connected between the opposing first connecting plates (23). A fixing column (221) is fixedly connected to the center of the surface of the sealing cover (22). The pushing mechanism includes a fixed frame (31) fixedly connected to the sealing cover (22), an electric push rod (32) and a push rod (33) fixedly connected inside the fixed frame (31), an inner sealing frame (34) slidably connected to the sealing cover (22), and a second connecting plate (35) distributed inside the sealing cover (22) and fixedly connected to the inner sealing frame (34) and the push rod (33). The placement assembly for placing mold steel A includes a connecting half-frame (41) fixedly connected to a fixed column (221), a rotating column (42) rotatably connected to the connecting half-frame (41), an adjustment frame (43) fixedly connected between opposing rotating columns (42), and a split mold steel placement frame (5). The mold steel placement frame (5) is fixedly connected to a slider (52) and a slide rail (53) slidably connected to the slider (52). A connecting block (51) is provided on the opposite surface of the mold steel placement frame (5).

2. The vacuum heat treatment furnace for mold steel according to claim 1, characterized in that: The surface of the sealing frame (12) is provided with a frame groove (121) that mates with the inner sealing frame (34).

3. The vacuum heat treatment furnace for mold steel according to claim 1, characterized in that: The two ends of the second connecting plate (35) are fixedly connected to the inner sealing frame (34) by screws, and the center of the second connecting plate (35) is fixed to one end of the push rod (33) by screws.

4. The vacuum heat treatment furnace for mold steel according to claim 1, characterized in that: The fixed frame (31) is provided with a first square groove and a second square groove inside. The electric push rod (32) is located in the first square groove, and the push rod (33) is located in the second square groove.

5. The vacuum heat treatment furnace for mold steel according to claim 1, characterized in that: The connecting half-frame (41) has a "U" shaped structure. A fixed hemisphere (421) is fixedly connected to the opposite surface of the connecting half-frame (41). The outer surface of the adjusting frame (43) is tangent to the fixed hemisphere (421).

6. The vacuum heat treatment furnace for mold steel according to claim 1, characterized in that: The slide rail (53) and the inner surface of the adjustment frame (43) are fixedly connected by screws, and the slider (52) has a groove that cooperates with the slide rail (53).

7. The vacuum heat treatment furnace for mold steel according to claim 1, characterized in that: The connecting block (51) has a cuboid structure, and an extraction hole is provided at the center of the connecting block (51).

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