High-precision sheet metal part casting device

Abstract

The high-precision sheet metal part casting device comprises a workbench, a first die and a second die, the upper end of the workbench is fixedly connected with two vertical plates, the workbench is provided with a preheating mechanism used for preheating the first die and the second die, and the preheating mechanism comprises a fixed frame arranged on the workbench; a third screw rod is arranged in the fixed frame, a movable frame is arranged on the third screw rod, two mounting blocks are arranged in the movable frame, an oil storage box is fixedly connected to the side walls of the mounting blocks, and a plurality of electric heating rods are arranged on the oil storage box. The preheating mechanism is arranged, the first die and the second die can be preheated through the oil storage box, the temperature gradient can be reduced, the fluidity can be improved, the thermal stress can be reduced, the forming quality of sheet metal parts is guaranteed, the position of the oil storage box is adjustable, and the application range of the device is further widened.

Description

Technical Field

[0001] The utility model relates to the technical field of high-precision sheet metal casting devices, in particular to a high-precision sheet metal casting device. Background Art

[0002] Sheet metal casting equipment is a device specially used for producing sheet metal parts. The casting processes include sand casting, metal mold casting, investment casting, lost foam casting, centrifugal casting, etc., and the casting of sheet metal parts includes sand casting and metal mold casting.

[0003] In the prior art, the traditional sheet metal casting device metal mold casting is mainly composed of upper and lower molds. When the sheet metal casting device is in use, the external molten material is poured into the upper and lower molds for cooling and molding. The upper and lower molds of the traditional casting device directly receive the molten material. For some high-precision sheet metal parts, there is a lack of preheating of the mold, which is easy to cause cold shut and insufficient pouring. The low mold temperature will cause the molten metal to cool quickly and the fluidity will deteriorate, which is easy to cause defects such as cold shut and insufficient pouring in the casting. Therefore, it is necessary to design a high-precision sheet metal casting device to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a high-precision sheet metal casting device.

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

[0006] A high-precision sheet metal casting device comprises a workbench, a first mold and a second mold, two vertical plates are fixedly connected to the upper end of the workbench, a preheating mechanism for preheating the first mold and the second mold is provided on the workbench, the preheating mechanism comprises a fixed frame arranged on the workbench, a third screw is provided in the fixed frame, a moving frame is provided on the third screw, two mounting blocks are provided in the moving frame, an oil storage box is fixedly connected to the side wall of the mounting block, a plurality of electric heating rods are provided on the oil storage box, and two driving mechanisms for driving the moving frame to move are provided on the workbench.

[0007] Preferably, the driving mechanism comprises an electric slide rail fixedly connected to the workbench, an electric slider is provided on the electric slide rail, and a side wall of the electric slider is fixedly connected to a side wall of the fixing frame.

[0008] Preferably, a first screw is provided at the bottom inner of the moving frame, and a second screw is provided at the bottom inner of the moving frame.

[0009] Preferably, a heat-conducting pad is provided on the side wall of the oil storage box, and two support plates are fixedly connected to the side wall of the workbench, and the upper ends of the support plates are flush with the upper end of the workbench.

[0010] Preferably, a vacuum cleaner is provided on one of the vertical plate side walls, and the suction end of the vacuum cleaner is connected to a suction hood via a connecting pipe. A movable rod is penetrated through the vertical plate side wall, and the movable rod is fixedly connected to the connecting pipe.

[0011] Preferably, the side walls of the vertical plate are fixedly connected with a processing box, and two activated carbon plates are arranged in the processing box.

[0012] The utility model has the following beneficial effects:

[0013] 1. The device is equipped with a preheating mechanism, which can preheat the first mold and the second mold through the oil storage box, which can reduce the temperature gradient, improve fluidity, and reduce thermal stress, thereby ensuring the forming quality of the sheet metal parts. The position of the oil storage box is adjustable, thereby increasing the application range of the device;

[0014] 2. The device is provided with a driving mechanism, which can drive two electric slide rails to move multiple oil storage boxes out of the first mold and the second mold, so as to facilitate the placement of different casting molds, thereby improving the practicality of the device;

[0015] 3. The device is equipped with an air suction hood and a vacuum cleaner. By starting the vacuum cleaner, the hot air discharged from the mold riser can be sucked away and sent into the treatment box. The activated carbon plate can purify the gas, thereby ensuring the health safety of the workshop workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a high-precision sheet metal casting device proposed by the utility model;

[0017] Figure 2 for Figure 1 A top view of

[0018] Figure 3 This is a side view of a high-precision sheet metal casting device proposed by the utility model.

[0019] In the figure: 1 workbench, 2 first mold, 3 second mold, 4 moving frame, 5 mounting block, 6 oil storage box, 7 electric heating rod, 8 vacuum cleaner, 9 treatment box, 10 activated carbon plate, 11 thermal pad, 12 movable rod, 13 suction hood, 14 first screw, 15 second screw, 16 fixed frame, 17 third screw, 18 electric slider, 19 electric slide rail, 20 support plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-3 A high-precision sheet metal casting device includes a workbench 1, a first mold 2 and a second mold 3. The first mold 2 and the second mold 3 are sheet metal molds in the prior art, and their internal structures are prior art, so they are not described in detail. Two vertical plates are fixedly connected to the upper end of the workbench 1. The workbench 1 is provided with a preheating mechanism for preheating the first mold 2 and the second mold 3. The preheating mechanism includes a fixed frame 16 arranged on the workbench 1, a third screw 17 is arranged in the fixed frame 16, a moving frame 4 is arranged on the third screw 17, and two mounting blocks 5 are arranged in the moving frame 4. The side walls of the mounting blocks 5 are fixedly connected with an oil storage box 6, and the oil storage box 6 is provided with a plurality of electric heating rods 7.

[0022] The workbench 1 is provided with two driving mechanisms for driving the moving frame 4 to move. The driving mechanisms include an electric slide rail 19 fixedly connected to the workbench 1 . The electric slide rail 19 is provided with an electric slider 18 . The side wall of the electric slider 18 is fixedly connected to the side wall of the fixed frame 16 .

[0023] In the utility model, a first screw 14 is provided at the bottom of the movable frame 4, the first screw 14 is threadedly connected to the upper mounting block 5, and is not threadedly connected to the lower mounting block 5, the second screw 15 is threadedly connected to the lower mounting block 5, and is not threadedly connected to the upper mounting block 5, and a second screw 15 is provided at the bottom of the movable frame 4, so that the positions of the two oil storage boxes 6 are adjustable, which is convenient for preheating casting molds of different heights.

[0024] In the utility model, the side wall of the oil storage box 6 is provided with a thermal pad 11, which can play a certain role in buffering and uniform heat conduction, so that the heat can be more evenly distributed to the heated object, reducing local overheating or uneven temperature. The side wall of the workbench 1 is fixedly connected to two support plates 20, and the upper end of the support plate 20 is flush with the upper end of the workbench 1, which can support the movable frame 4 and reduce the pressure on the electric slide rail 19.

[0025] In the utility model, a vacuum cleaner 8 is provided on one of the side walls of the vertical plate, and the suction end of the vacuum cleaner 8 is connected to an air suction hood 13 through a connecting pipe (a hose of sufficient length). A movable rod 12 is penetrated through the side wall of the vertical plate, and the movable rod 12 is fixedly connected to the connecting pipe, so that the hot air ejected from the mold riser can be sucked in and discharged. An exhaust pipe is provided under the processing box 9, and the exhaust pipe can be connected to the exhaust pipe of the workshop.

[0026] In the utility model, a processing box 9 is fixedly connected to the side wall of the vertical plate. Two activated carbon plates 10 are arranged in the processing box 9. The activated carbon plates 10 can be used to purify the hot air, thereby preventing harmful gases in the hot air from being directly discharged and causing environmental pollution.

[0027] In the initial state, the movable rod 12 is pulled to the left so that the suction hood 13 is located near the vertical plate.

[0028] When in use, the two third screws 17 can be rotated, and the two movable frames 4 can move toward the side walls of the first mold 2 and the second mold 3 under the inner wall limit of the fixed frame 16, and the thermal pad 11 can contact the first mold 2 and the second mold 3. The heating oil in the oil storage box 6 can be heated by connecting a plurality of electric heating rods 7, and the heat of the heating oil can be transferred to the first mold 2 and the second mold 3 through heat conduction, so that the first mold 2 and the second mold 3 are preheated before the molten material is poured into the first mold 2 and the second mold 3. Preheating the casting mold in advance can firstly reduce the temperature gradient, which helps to make the overall temperature of the mold more uniform, reduce the temperature difference between the molten metal and the mold, thereby reducing the uneven shrinkage caused by the temperature difference, and then improve the dimensional accuracy. Secondly, it can improve the fluidity, so that the molten metal can better fill the cavity, reduce the occurrence of defects such as cold shut and insufficient pouring, and indirectly help to improve the molding accuracy of the product. Moreover, it can reduce thermal stress, which can effectively reduce the concentration of thermal stress caused by rapid cooling, avoid deformation and other problems caused by it, and help to ensure the shape and dimensional accuracy of the product.

[0029] Secondly, before casting, the two electric slide rails 19 can be driven, and the electric slide rails 19 can drive the electric slider 18 to move the oil storage box 6 out of the first mold 2 and the second mold 3, so that different casting molds can be placed in, thereby improving the practicality of the device;

[0030] In addition, during casting, the vacuum cleaner 8 can be started, and the suction force generated by the suction hood 13 can suck away the hot air discharged from the mold riser and send it into the treatment box 9. The activated carbon plate 10 can purify the gas, thereby ensuring the health safety of the workshop workers.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and practical concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-precision sheet metal casting device, comprising a workbench (1), a first mold (2) and a second mold (3), characterized in that: Two vertical plates are fixedly connected to the upper end of the workbench (1). A preheating mechanism for preheating the first mold (2) and the second mold (3) is provided on the workbench (1). The preheating mechanism comprises a fixed frame (16) arranged on the workbench (1). A third screw (17) is provided in the fixed frame (16). A moving frame (4) is provided on the third screw (17). Two mounting blocks (5) are provided in the moving frame (4). An oil storage box (6) is fixedly connected to the side wall of the mounting block (5). A plurality of electric heating rods (7) are provided on the oil storage box (6). Two driving mechanisms for driving the moving frame (4) to move are provided on the workbench (1).

2. A high-precision sheet metal casting device according to claim 1, characterized in that: The driving mechanism comprises an electric slide rail (19) fixedly connected to the workbench (1), an electric slider (18) is provided on the electric slide rail (19), and a side wall of the electric slider (18) is fixedly connected to a side wall of a fixed frame (16).

3. A high-precision sheet metal casting device according to claim 2, characterized in that: A first screw rod (14) is provided at the bottom inner of the moving frame (4), and a second screw rod (15) is provided at the bottom inner of the moving frame (4).

4. A high-precision sheet metal casting device according to claim 3, characterized in that: The side wall of the oil storage box (6) is provided with a heat-conducting pad (11), and the side wall of the workbench (1) is fixedly connected with two support plates (20), and the upper ends of the support plates (20) are flush with the upper end of the workbench (1).

5. A high-precision sheet metal casting device according to claim 4, characterized in that: A vacuum cleaner (8) is provided on one of the vertical plate side walls, and the suction end of the vacuum cleaner (8) is connected to a suction hood (13) via a connecting pipe. A movable rod (12) is provided through the vertical plate side wall, and the movable rod (12) is fixedly connected to the connecting pipe.

6. A high-precision sheet metal casting device according to claim 5, characterized in that: The side wall of the vertical plate is fixedly connected with a processing box (9), and two activated carbon plates (10) are arranged in the processing box (9).

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