A heat treatment apparatus for metal forgings

Abstract

This utility model relates to the technical field of heat treatment equipment and discloses a heat treatment device for metal forgings, including a heat treatment chamber, one end of a second filter plate connected to the upper surface of a fixed plate, a water circulation mechanism on the outer surface of the heat treatment chamber, a heating mechanism inside the heat treatment chamber, a vacuum mechanism on the upper surface of the heat treatment chamber, the input end of the vacuum mechanism being located inside the heat treatment chamber, and a feeding mechanism on the upper surface of the fixed plate, the placement end of the feeding mechanism being located inside the heat treatment chamber. This utility model, through the setting of the vacuum mechanism, achieves the effect of keeping the heat treatment chamber in a vacuum state, avoiding the difficulty in effectively maintaining a vacuum state inside the heat treatment chamber during the heat treatment of metal forgings in the prior art, which leads to oxygen in the air entering the heat treatment chamber and reacting with the high-temperature metal surface to form an oxide scale, causing a decrease in the hardness and an increase in the roughness of the metal surface.

Description

Technical Field

[0001] This utility model relates to the technical field of heat treatment equipment, specifically a heat treatment equipment for metal forgings. Background Technology

[0002] Metal heat treatment is a process in which metal workpieces are heated to a suitable temperature in a certain medium, held at that temperature for a certain time, and then cooled at different rates in different media. By changing the microstructure of the surface or interior of the metal material, its properties can be controlled.

[0003] Utility model patent application CN206646139U discloses a heat treatment device for metal forgings, including a hollow base with a heat treatment chamber welded to it. A partition is vertically installed inside the heat treatment chamber, with its two ends welded to the top and bottom inner walls of the chamber, respectively. The partition divides the interior of the heat treatment chamber into a heating chamber and a cooling chamber located to one side of the heating chamber. An opening is formed on the outer wall of the partition, and an electrically controlled valve is installed on the inner wall of the opening. The heating chamber and the cooling chamber are connected by the electrically controlled valve. A heating device is fixed to the top inner wall of the heating chamber with screws, and an air pump is fixed to the top outer wall of the heating chamber with bolts. This utility model can recover and utilize cooling water and the heat within it, enabling the cooling water to circulate and utilize the heat in the cooling water to heat the metal, thus saving resources and reducing energy consumption.

[0004] The heat treatment apparatus for metal forgings disclosed in the above document has the following defects: When heat treating metal forgings, the existing technology has difficulty in effectively maintaining a vacuum inside the heat treatment chamber, which leads to oxygen in the air entering the heat treatment chamber and reacting with the high-temperature metal surface to form an oxide scale, which reduces the hardness of the metal surface and increases its roughness.

[0005] Therefore, it can be seen that the existing heat treatment equipment for metal forgings does not have the structure to maintain a vacuum state in the heat treatment chamber, and it is necessary to improve the existing shortcomings and provide a heat treatment equipment for metal forgings. Summary of the Invention

[0006] The purpose of this utility model is to provide a heat treatment device for metal forgings, which solves the problem that traditional heat treatment devices for metal forgings cannot effectively maintain a vacuum inside the heat treatment chamber during heat treatment, which leads to oxygen in the air entering the heat treatment chamber and reacting with the high-temperature metal surface to form an oxide scale, resulting in a decrease in the hardness and an increase in the roughness of the metal surface.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model relates to a heat treatment device for metal forgings, comprising a heat treatment chamber, a fixed plate fixedly installed on the inner wall of the heat treatment chamber, two sets of sliding grooves formed on the upper surface of the fixed plate, a heat-conducting plate fixedly installed on the inner wall of the heat treatment chamber, one end of the heat-conducting plate being connected to the fixed plate, heat-conducting fins fixedly installed on the lower surface of the heat-conducting plate, an electric push rod fixedly installed on the outer surface of the heat treatment chamber, one end of the electric push rod being connected to the upper surface of the heat-conducting plate, a baffle fixedly installed on the inner wall of the heat treatment chamber, a second filter plate fixedly installed on the lower surface of the baffle, one end of the second filter plate being connected to the upper surface of the fixed plate, a water circulation mechanism provided on the outer surface of the heat treatment chamber, a heating mechanism provided inside the heat treatment chamber, a vacuum mechanism provided on the upper surface of the heat treatment chamber, the input end of the vacuum mechanism being located inside the heat treatment chamber, and a feeding mechanism provided on the upper surface of the fixed plate, the placement end of the feeding mechanism being located inside the heat treatment chamber.

[0009] Furthermore, the vacuuming mechanism includes a mounting plate, which is fixedly mounted on the upper surface of the heat treatment chamber, and a vacuum pump is fixedly mounted on the upper surface of the mounting plate.

[0010] Furthermore, an input pipe is fixedly installed at the input end of the vacuum pump, and a connecting pipe is fixedly installed at one end of the input pipe, with one end of the connecting pipe connected to the interior of the heat treatment chamber.

[0011] Furthermore, an output pipe is fixedly installed at the output end of the vacuum pump, and an exhaust pipe is fixedly installed at one end of the output pipe.

[0012] Furthermore, the feeding mechanism includes a placement plate, the upper surface of the fixed plate is provided with a placement plate, and the lower surface of the placement plate is fixedly installed with a protrusion, the protrusion and the slide groove are slidably connected.

[0013] Furthermore, a storage groove is provided on the upper surface of the placement plate, and a pull plate is fixedly installed on the outer surface of the placement plate, with the pull plate and the sliding groove closely fitting together.

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

[0015] (1) This utility model uses a vacuum pump to evacuate the inside of the heat treatment chamber through the input pipe and the connecting pipe, and then inputs the vacuum pump into the exhaust pipe through the output pipe and then discharges it through the exhaust pipe. This achieves the effect of keeping the heat treatment chamber in a vacuum state, which avoids the problem that the existing technology cannot effectively keep the heat treatment chamber in a vacuum state when heat treating metal forgings. This would lead to oxygen in the air entering the heat treatment chamber and reacting with the high-temperature metal surface to form an oxide scale, which would reduce the hardness and increase the roughness of the metal surface.

[0016] (2) When it is necessary to remove the heat-treated metal forging, the present invention can pull the pull plate to make the protrusion drive the placement plate to slide in the groove, and then take out the heat-treated metal forging from the placement groove, thereby improving the efficiency of material feeding and material retrieval.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ;

[0021] Figure 3 This is a schematic cross-sectional view of the overall structure of this utility model;

[0022] Figure 4 This is a schematic diagram showing the overall structure and the feeding mechanism of this utility model separated;

[0023] The attached diagram lists the components represented by each number as follows:

[0024] In the diagram: 1. Heat treatment chamber; 2. Fixing plate; 201. Slide groove; 3. Heat-conducting plate; 4. Heat-conducting fins; 5. Electric push rod; 6. Baffle; 7. Second filter plate; 8. Water circulation mechanism; 9. Heating mechanism; 10. Vacuuming mechanism; 1001. Mounting plate; 1002. Vacuum pump; 1003. Input pipe; 1004. Connecting pipe; 1005. Output pipe; 1006. Exhaust pipe; 11. Discharge mechanism; 1101. Placement plate; 1102. Protrusion; 1103. Storage slot; 1104. Pull plate. 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 1-4 As shown, this utility model is a heat treatment device for metal forgings, including a heat treatment chamber 1. A fixing plate 2 is fixedly installed on the inner wall of the heat treatment chamber 1. Two sets of sliding grooves 201 are formed on the upper surface of the fixing plate 2. A heat-conducting plate 3 is fixedly installed on the inner wall of the heat treatment chamber 1. One end of the heat-conducting plate 3 is connected to the fixing plate 2. Heat-conducting fins 4 are fixedly installed on the lower surface of the heat-conducting plate 3. An electric push rod 5 is fixedly installed on the outer surface of the heat treatment chamber 1. One end of the electric push rod 5 is connected to the upper surface of the heat-conducting plate 3. A baffle 6 is fixedly installed on the inner wall, and a second filter plate 7 is fixedly installed on the lower surface of the baffle 6. One end of the second filter plate 7 is connected to the upper surface of the fixed plate 2. A water circulation mechanism 8 is provided on the outer surface of the heat treatment box 1. A heating mechanism 9 is provided inside the heat treatment box 1. A vacuuming mechanism 10 is provided on the upper surface of the heat treatment box 1. The input end of the vacuuming mechanism 10 is located inside the heat treatment box 1. A material discharge mechanism 11 is provided on the upper surface of the fixed plate 2. The placement end of the material discharge mechanism 11 is located inside the heat treatment box 1.

[0027] The vacuum pumping mechanism 10 includes a mounting plate 1001. The mounting plate 1001 is fixedly mounted on the upper surface of the heat treatment chamber 1, and a vacuum pump 1002 is fixedly mounted on the upper surface of the mounting plate 1001.

[0028] An input pipe 1003 is fixedly installed at the input end of the vacuum pump 1002, and a connecting pipe 1004 is fixedly installed at one end of the input pipe 1003. One end of the connecting pipe 1004 is connected to the inside of the heat treatment box 1.

[0029] An output pipe 1005 is fixedly installed at the output end of the vacuum pump 1002, and an exhaust pipe 1006 is fixedly installed at one end of the output pipe 1005.

[0030] The vacuum pump 1002 is started to evacuate the inside of the heat treatment chamber 1 through the input pipe 1003 and the connecting pipe 1004. The vacuum is then introduced into the exhaust pipe 1006 through the output pipe 1005 and discharged through the exhaust pipe 1006. This achieves the effect of keeping the heat treatment chamber 1 in a vacuum state, avoiding the situation in the prior art where it is difficult to effectively maintain the vacuum state inside the heat treatment chamber 1 when heat treating metal forgings. This avoids the situation where oxygen in the air enters the heat treatment chamber 1 and reacts with the high-temperature metal surface to form an oxide scale, which reduces the hardness of the metal surface and increases its roughness.

[0031] The feeding mechanism 11 includes a placement plate 1101. The upper surface of the fixed plate 2 is provided with the placement plate 1101, and the lower surface of the placement plate 1101 is fixedly installed with a protrusion 1102. The protrusion 1102 and the slide groove 201 are slidably connected.

[0032] The upper surface of the placement plate 1101 is provided with a storage groove 1103, and a pull plate 1104 is fixedly installed on the outer surface of the placement plate 1101. The pull plate 1104 and the slide groove 201 are tightly fitted together.

[0033] When it is necessary to remove the heat-treated metal forging, the pull plate 1104 is pulled to make the protrusion 1102 drive the placement plate 1101 to slide in the slide groove 201, and then the heat-treated metal forging can be taken out from the placement groove 1103, thereby improving the efficiency of feeding and picking up materials.

[0034] In use, firstly, pull the pull plate 1104 to slide the placement plate 1101 out via the protrusion 1102 on the slide groove 201. Then, place the metal forging to be heat-treated into the storage slot 1103 on the placement plate 1101, and push it into the heat treatment chamber 1. Start the water pump on the water circulation mechanism 8 to draw out the cooling water below the fixed plate 2. Filter the water through the filter box on the water circulation mechanism 8, and then let it enter the water pump through the inlet pipe. Then, it is fed into three sets of nozzles through the outlet pipe, and sprayed out from the nozzles to cool and quench the metal. The cooling water enters below the fixed plate 2 through the outlet hole of the cooling chamber, and from... The process involves recycling and simultaneously activating the vacuum pump 1002 to evacuate the interior of the heat treatment chamber 1 through the input pipe 1003 and the connecting pipe 1004. The vacuum is then fed into the exhaust pipe 1006 through the output pipe 1005 and discharged through the exhaust pipe 1006, thereby achieving a vacuum state inside the heat treatment chamber 1. This avoids the problem in existing technologies where it is difficult to effectively maintain a vacuum state inside the heat treatment chamber 1 when heat treating metal forgings. This prevents oxygen from the air from entering the heat treatment chamber 1 and reacting with the high-temperature metal surface to form an oxide scale, which reduces the hardness and increases the roughness of the metal surface.

[0035] When it is necessary to remove the heat-treated metal forging, the pull plate 1104 is pulled to make the protrusion 1102 drive the placement plate 1101 to slide in the slide groove 201, and then the heat-treated metal forging can be taken out from the placement groove 1103, thereby improving the efficiency of feeding and picking up materials.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A heat treatment apparatus for metal forgings, comprising a heat treatment chamber (1), wherein a fixing plate (2) is fixedly installed on the inner wall of the heat treatment chamber (1), and two sets of sliding grooves (201) are provided on the upper surface of the fixing plate (2); a heat-conducting plate (3) is fixedly installed on the inner wall of the heat treatment chamber (1), one end of the heat-conducting plate (3) is connected to the fixing plate (2); a heat-conducting fin (4) is fixedly installed on the lower surface of the heat-conducting plate (3); an electric push rod (5) is fixedly installed on the outer surface of the heat treatment chamber (1), one end of the electric push rod (5) is connected to the upper surface of the heat-conducting plate (3); a baffle (6) is fixedly installed on the inner wall of the heat treatment chamber (1), a second filter plate (7) is fixedly installed on the lower surface of the baffle (6), one end of the second filter plate (7) is connected to the upper surface of the fixing plate (2); a water circulation mechanism (8) is provided on the outer surface of the heat treatment chamber (1); and a heating mechanism (9) is provided inside the heat treatment chamber (1), characterized in that: The upper surface of the heat treatment box (1) is provided with a vacuum mechanism (10), the input end of the vacuum mechanism (10) is located inside the heat treatment box (1), and the upper surface of the fixing plate (2) is provided with a feeding mechanism (11), the placement end of the feeding mechanism (11) is located inside the heat treatment box (1).

2. The heat treatment apparatus for metal forgings according to claim 1, characterized in that: The vacuum pumping mechanism (10) includes a mounting plate (1001), the upper surface of the heat treatment box (1) is fixedly mounted with the mounting plate (1001), and the upper surface of the mounting plate (1001) is fixedly mounted with a vacuum pump (1002).

3. The heat treatment apparatus for metal forgings according to claim 2, characterized in that: An input pipe (1003) is fixedly installed at the input end of the vacuum pump (1002), and a connecting pipe (1004) is fixedly installed at one end of the input pipe (1003). One end of the connecting pipe (1004) is connected to the interior of the heat treatment box (1).

4. The heat treatment apparatus for metal forgings according to claim 2, characterized in that: The output end of the vacuum pump (1002) is fixedly installed with an output pipe (1005), and an exhaust pipe (1006) is fixedly installed at one end of the output pipe (1005).

5. The heat treatment apparatus for metal forgings according to claim 1, characterized in that: The feeding mechanism (11) includes a placement plate (1101), the upper surface of the fixed plate (2) is provided with the placement plate (1101), and the lower surface of the placement plate (1101) is fixedly installed with a protrusion (1102), and the protrusion (1102) and the slide groove (201) are slidably connected.

6. The heat treatment apparatus for metal forgings according to claim 5, characterized in that: The upper surface of the placement plate (1101) is provided with a storage groove (1103), and a pull plate (1104) is fixedly installed on the outer surface of the placement plate (1101). The pull plate (1104) and the slide groove (201) are closely fitted together.

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