A simple and convenient hydraulic forming device for zirconium core forming

Abstract

The utility model belongs to zirconium core forming hydraulic forming technical field, the utility model discloses a simple and convenient zirconium core forming hydraulic forming device, including support, hydraulic installation board, base, the upper right side longitudinal fixed setting of support has hydraulic installation board, the bottom center position of hydraulic cylinder fixed setting is at hydraulic installation board, telescopic link is installed in the inside of hydraulic cylinder, base fixed setting is at the upper center position of support, and the center of base is provided with the clamping groove, and the stripper gasket is placed in the clamping groove, and the forming die is installed and is placed in the clamping groove, and the forming die includes sleeve, and the sleeve is hollow cylinder, and the sleeve is installed and is placed in the clamping groove, and the lower end of pressing plate is fixed in telescopic link, and the mandrel is placed in the center of sleeve. The utility model has the advantages of: the complicated installation replacement process of the forming die of zirconium core is simplified, and the artificial cost of zirconium core forming is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic forming technology for zirconium core forming, and specifically relates to a simple and convenient hydraulic forming device for zirconium core forming. Background Technology

[0002] The zirconium core is the core component of the casting nozzle, made of zirconium-based material. It possesses high-temperature resistance, corrosion resistance, and erosion resistance, and comes into direct contact with molten steel, protective slag, and other high-temperature molten materials, playing a crucial role in controlling the flow of molten steel and ensuring casting stability. The casting nozzle, typically made of materials such as aluminum carbon, primarily supports and protects the zirconium core, while also reducing heat loss and helping to maintain the core's working environment. The two components are structurally compatible; the nozzle usually encloses or secures the zirconium core, forming a complete casting nozzle assembly.

[0003] During the processing of zirconium cores, hydraulic molds are often used for press forming. However, most existing molds are complex in structure and cumbersome to install and replace. When small-batch processing of zirconium cores of different sizes is required, the tedious assembly and replacement process wastes a lot of labor costs. Based on the above-mentioned defects in the existing technology, the inventors have developed a simple and convenient hydraulic device for zirconium core forming, which can effectively solve the technical problems existing in the prior art. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a simple and convenient hydraulic device for zirconium core forming. The structure of this utility model is scientifically and rationally designed and simple. This utility model can solve the problem that the installation and replacement process of zirconium core forming mold is cumbersome and wastes a lot of labor costs when processing small batches of zirconium cores of different sizes.

[0005] The technical solution adopted by this utility model is as follows: a simple and convenient zirconium core forming hydraulic device, including a bracket, a hydraulic mounting plate, and a base; the hydraulic mounting plate is longitudinally fixed on the upper right side of the bracket, the hydraulic cylinder is fixedly set at the bottom center of the hydraulic mounting plate, and the telescopic rod is installed inside the hydraulic cylinder; the base is fixedly set at the upper center of the bracket, and a slot is opened in the center of the base, and a demolding pad is placed in the slot; the forming mold is installed in the slot, and the forming mold includes a sleeve, which is a hollow cylindrical shape. The sleeve is installed in the slot, the pressure plate is fixed at the lower end of the telescopic rod, and the mandrel is placed in the center of the sleeve.

[0006] The hydraulic mounting plate is L-shaped, the base is disc-shaped, and the slot is a concave circle with an inner diameter larger than the outer diameter of the sleeve.

[0007] The release pad is annular, and its outer diameter is smaller than the inner diameter of the slot.

[0008] The hydraulic cylinder is fixedly connected to the solenoid valve on the output end of the hydraulic station via a hydraulic pipe, and the center of the hydraulic cylinder and the telescopic rod are vertically aligned with the center of the base.

[0009] The sleeve includes a sleeve body, which is cylindrical, and a cavity is formed at the center of the sleeve body. The cavity is a cone shape that vertically penetrates the sleeve body.

[0010] The pressure plate includes a pressure plate body, which is circular in shape. A fixing screw hole is opened at the upper center of the pressure plate body. The clamping body is a hollow cylindrical shape and is fixedly installed at the bottom of the pressure plate body. The clamping body and the pressure plate body are concentric.

[0011] The mandrel includes a mandrel body, which is a T-shaped cylinder. The upper end face of the mandrel body has an upper chamfer, and the bottom of the mandrel body has an arc-shaped transition surface.

[0012] The inner diameter of the clamping body is larger than the outer diameter of the mandrel body, and the bottom diameter of the mandrel body is smaller than the inner diameter of the sleeve body; the center diameter of the release shim is larger than the bottom outer diameter of the mandrel body.

[0013] The working process of this simple and convenient zirconium core forming hydraulic device is as follows: 1. Zirconium core forming process: First, the upper chamfered end of the forming mold mandrel is inserted into the sleeve cavity (from the bottom of the sleeve cavity). Then, the sleeve and mandrel are placed together in the slot on the base (at this time, the bottom of the mandrel and the bottom of the sleeve are in contact with the bottom of the slot). Then, the pressure plate is tightened and fixed to the thread on the lower end face of the telescopic rod of the hydraulic cylinder through the fixing screw hole. Then, the zirconium core forming material is poured into the sleeve cavity (the zirconium core forming material is flush with the upper end face of the sleeve). Then, the hydraulic cylinder is started by controlling the hydraulic cylinder switch, and the telescopic rod begins to extend downward, pushing the pressure plate downward. When the telescopic rod extends to the required length, the pressing body of the pressure plate presses into the sleeve cavity, compacting the zirconium core forming material. At this time, the zirconium core is formed. II. Zirconium Core Demolding Process: When demolding the zirconium core, first activate the hydraulic cylinder via the hydraulic cylinder control switch. The hydraulic cylinder's telescopic rod begins to retract. After the pressure plate leaves the sleeve, the operator manually removes the sleeve and mandrel of the forming mold from the slot together. Then, the operator places the demolding pad at the bottom of the slot, and then places the sleeve, mandrel, and formed zirconium core back into the slot. Finally, the operator activates the hydraulic cylinder, and the telescopic rod extends again, pushing the clamping body of the pressure plate downwards. At this time, the clamping body of the pressure plate presses the mandrel and the formed zirconium core downwards together. Utilizing the center hole of the demolding pad and the bottom of the mandrel's structure, the bottom of the mandrel body contacts the bottom of the demolding pad, achieving the separation of the arc-shaped transition surface of the mandrel body from the formed zirconium core. The operator removes the sleeve from the slot and the formed zirconium core from the top of the mandrel. Finally, the mandrel and demolding pad are removed from the slot respectively, thus completing the zirconium core demolding process.

[0014] The beneficial effects of this utility model are as follows: by setting up a hydraulic cylinder, telescopic rod and forming mold, and utilizing the simple and convenient assembly and demolding between the sleeve, pressure plate and mandrel, when small batch processing of zirconium cores of different sizes is required, the cumbersome installation and replacement process of zirconium core forming mold is simplified, and the labor cost of zirconium core forming is reduced. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the molding die of this utility model;

[0017] Figure 3 This is a cross-sectional view of the new sleeve of this utility model;

[0018] Figure 4 This is a cross-sectional view of the pressure plate of this utility model;

[0019] Figure 5 This is a cross-sectional view of the mandrel of this utility model;

[0020] The markings in the diagram are: 1. Bracket, 2. Hydraulic mounting plate, 3. Base, 4. Slot, 5. Demolding pad, 6. Hydraulic cylinder, 7. Telescopic rod, 8. Molding mold, 81. Sleeve, 811. Sleeve body, 812. Cylinder, 82. Pressure plate, 821. Pressure plate body, 822. Fixing screw hole, 823. Pressing body, 83. Mandrel, 831. Mandrel body, 832. Upper chamfer, 833. Arc transition surface. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0022] This utility model provides a simple and convenient hydraulic device for zirconium core forming:

[0023] like Figure 1 As shown, a hydraulic mounting plate 2 is fixedly installed longitudinally on the upper right side of the bracket 1, and a hydraulic cylinder 6 is fixedly installed at the bottom center of the hydraulic mounting plate 2. The telescopic rod 7 is installed inside the hydraulic cylinder 6.

[0024] The bracket 1 provides a platform for fixing the base 3 and provides stable support for the hydraulic mounting plate 2.

[0025] The above-mentioned hydraulic cylinder 6 and telescopic rod 7 are used to realize the vertical extension and retraction of the pressure plate 82 of the forming mold 8 by utilizing the extension and retraction action of the telescopic rod 7 of the hydraulic cylinder 6. On the one hand, it provides vertical pressure for the forming of zirconium core; on the other hand, it provides downward demolding thrust for the demolding of the formed zirconium core.

[0026] like Figure 1 As shown, the base 3 is fixedly installed at the center of the upper part of the bracket 1, and a slot 4 is provided in the center of the base 3; the base 3 is disc-shaped, and the slot 4 is a concave circular shape, with the inner diameter of the slot 4 being larger than the outer diameter of the sleeve 81.

[0027] The aforementioned base 3 and slot 4 are used to fix the sleeve 81 of the molding mold 8 to the upper center of the base 3. On the one hand, it serves to fix the sleeve 81. On the other hand, when the molded zircon core is demolded, the slot 4 and the center hole of the demolding pad 5 are used to cooperate, and under the downward pressure of the pressure plate 82, the bottom of the mandrel 83 falls into the center hole of the demolding pad 5, realizing the initial demolding of the mandrel 83 and the molded zircon core.

[0028] like Figure 1 , 2 As shown in Figures 3, 4, and 5, the forming mold 8 is installed in the slot 4. The forming mold 8 includes a sleeve 81, which is a hollow cylindrical shape. The sleeve 81 is installed in the slot 4. The pressure plate 82 is fixed to the lower end of the telescopic rod 7, and the mandrel 83 is placed at the center of the sleeve 81.

[0029] The above-mentioned arrangement of sleeve 81, pressure plate 82 and mandrel 83, with the cooperation of the sleeve cavity 812 and mandrel body 831, and the pressure applied to the zirconium core forming material by the pressing body 823 of pressure plate 82, forms a dense zirconium core.

[0030] like Figure 1 As shown, the slot 4 is a concave circular shape, and the inner diameter of the slot 4 is larger than the outer diameter of the sleeve 81.

[0031] The main purpose of the above-mentioned setting is to use the slot 4 to fix the sleeve 81 on the one hand, and to place the demolding pad 5 at the bottom of the slot 4 on the other hand, so as to initially demold the mandrel 83 from the formed zirconium core.

[0032] like Figure 1 As shown, the release shim 5 is annular, and the outer diameter of the release shim 5 is smaller than the inner diameter of the slot 4.

[0033] The aforementioned setting of the demolding pad 5, with its central hole concentric with the bottom of the mandrel body 831, allows the mandrel body 831 to fall into the center of the demolding pad 5 and contact the bottom of the slot 4 during the demolding of the zirconium core. If the thickness of the demolding pad 5 (i.e., the height of the central hole of the demolding pad 5) is insufficient to achieve initial demolding of the bottom of the mandrel body 831 from the formed zirconium core, the number of demolding pads 5 can be increased, thereby increasing the height of the central hole of the demolding pad 5. This ensures that the bottom of the mandrel body 831 falls into the central hole of the demolding pad 5 to a sufficient depth, thus achieving initial demolding of the formed zirconium core from the mandrel body 831.

[0034] like Figure 2 As shown in Figure 3, the sleeve 81 includes a sleeve body 811, which is cylindrical, and a cavity 812 is formed at the center of the sleeve body 811. The cavity 812 is a cone shape that vertically penetrates the sleeve body 811.

[0035] The aforementioned arrangement of the sleeve body 811 and the cylindrical cavity 812, with the circumferential gap between the cylindrical cavity 812 and the mandrel 83 serving as the forming cavity for the zirconium core, facilitates smooth demolding of the formed zirconium core. Changing the inner diameter of the cylindrical cavity 812 alters the outer diameter of the formed zirconium core, thereby changing its forming dimensions. This improves the adaptability of the dimensional fit between the slot 4 and the sleeve 81 without altering the inner diameter of the slot 4 in the base 3.

[0036] like Figure 2 As shown in Figure 4, the pressure plate 82 includes a pressure plate body 821, which is circular in shape. A fixing screw hole 822 is opened at the upper center of the pressure plate body 821. The clamping body 823 is a hollow cylindrical shape and is fixedly installed at the bottom of the pressure plate body 821. The clamping body 823 and the pressure plate body 821 are concentric. The inner diameter of the clamping body 823 is larger than the outer diameter of the mandrel body 831, and the bottom diameter of the mandrel body 831 is smaller than the inner diameter of the sleeve body 811. The center hole diameter of the demolding pad 5 is larger than the bottom outer diameter of the mandrel body 831.

[0037] The aforementioned arrangement of pressure plate 82, pressure plate body 821, fixing screw hole 822, and clamping body 823, wherein fixing screw hole 822 is used to tighten and fix with telescopic tube 7; under the push of telescopic rod 7 of hydraulic cylinder 6, clamping body 823 realizes the up and down movement of pressure plate body 821 and clamping body 823, on the one hand, applying molding pressure to the forming of zirconium core; on the other hand, applying demolding pressure to mandrel body 831, thereby realizing the smooth demolding of the formed zirconium core.

[0038] like Figure 2As shown in Figure 5, the mandrel 83 includes a mandrel body 831, which is a T-shaped cylinder. The upper end face of the mandrel body 831 is provided with an upper chamfer 832, and the bottom of the mandrel body 831 is provided with an arc-shaped transition surface.

[0039] The aforementioned design, including the mandrel body 831, the upper chamfer 832, and the arc-shaped transition surface 833 at the bottom of the mandrel body 831, allows the upper chamfer 832 of the mandrel body 831 to precisely align with the upper part of the mandrel body 831 when the clamping body 823 of the pressure plate 82 applies pressure to the zirconium core forming material, facilitating the smooth entry of the clamping body 823 into the cylindrical cavity 812. The arc-shaped transition surface 833 at the bottom of the mandrel body 831 increases the smoothness of demolding when the mandrel body 831 is removed from the formed zirconium core, preventing damage to the inner surface of the zirconium core due to uneven demolding.

[0040] like Figure 1-5As shown, the working process of this simple and convenient zirconium core forming hydraulic device is as follows: 1. Zirconium core forming process: First, the upper chamfered end 832 of the forming mold 8 mandrel 83 is inserted into the sleeve 81 cavity 812 (inserted from the bottom of the sleeve 81 cavity 812). Then, the sleeve 81 and mandrel 83 are placed together in the slot 4 on the base 3 (at this time, the bottom of the mandrel 83 and the bottom of the sleeve 81 are in contact with the bottom of the slot 4). Then, the pressure plate 82 is tightened and fixed to the hydraulic system through the fixing screw hole 822. The lower end face of the telescopic rod 7 of cylinder 6 is threaded; then the zirconium core forming material is poured into the cavity 812 of sleeve 81 (the zirconium core forming material is flush with the upper end face of sleeve 81). Then, the hydraulic cylinder 6 is started by the control switch of hydraulic cylinder 6, and the telescopic rod 7 begins to extend downward and pushes the pressure plate 82 to move downward. When the telescopic rod 7 extends to the length required by the process, the pressing body 823 of pressure plate 82 presses into the cavity 812 of sleeve 81 to compact the zirconium core forming material. At this time, the zirconium core is formed. II. Zirconia Core Demolding Process: When demolding the zirconium core, first activate hydraulic cylinder 6 via the control switch. The telescopic rod 7 of hydraulic cylinder 6 retracts. After the pressure plate 82 leaves the sleeve 81, the operator manually removes the sleeve 81 and mandrel 83 of the forming mold 8 from the slot 4. Then, the operator places the demolding pad 5 at the bottom of the slot 4, and then places the sleeve 81, mandrel 83, and the formed zirconium core back into the slot 4. Finally, the operator activates hydraulic cylinder 6, and the telescopic rod 7 extends again, pushing the clamping body 8 of the pressure plate 82. 23 moves downwards. At this time, the clamping body 823 of the pressure plate 82 presses the mandrel 83 and the formed zirconium core downwards together. At this time, the central hole of the demolding pad 5 and the bottom of the mandrel 83 are matched. The bottom of the mandrel body 831 contacts the bottom of the demolding pad 5. At this time, the arc transition surface of the mandrel body 831 is separated from the formed zirconium core. The operator removes the sleeve 81 from the slot 4 and removes the formed zirconium core from the top of the mandrel 83. Finally, the mandrel 83 and the demolding pad 5 are removed from the slot 4 respectively. This completes the process of demolding the zirconium core.

[0041] Various modifications to the above embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A simple and convenient hydraulic forming device for zirconium core forming, comprising a support, a hydraulic mounting plate, and a base; the hydraulic mounting plate is longitudinally fixedly arranged on the upper right side of the support, a hydraulic cylinder is fixedly arranged at the bottom center position of the hydraulic mounting plate, and a telescopic rod is installed inside the hydraulic cylinder; the base is fixedly arranged at the upper center position of the support, characterized in that: The base has a slot in the center, and the demolding pad is placed in the slot. The molding die is installed in the slot. The molding die includes a sleeve, which is a hollow cylindrical shape. The sleeve is installed in the slot. The pressure plate is fixed to the lower end of the telescopic rod, and the mandrel is placed in the center of the sleeve.

2. A simple and convenient hydraulic forming device for zirconium core forming according to claim 1, characterized in that: The hydraulic mounting plate is L-shaped, the base is disc-shaped, and the slot is a concave circle with an inner diameter larger than the outer diameter of the sleeve.

3. A simple and convenient hydraulic forming device for zirconium core forming according to claim 1, characterized in that: The release pad is annular, and its outer diameter is smaller than the inner diameter of the slot.

4. A simple and convenient hydraulic forming device for zirconium core forming according to claim 1, characterized in that: The sleeve includes a sleeve body, which is cylindrical, and a cavity is formed at the center of the sleeve body. The cavity is a cone shape that vertically penetrates the sleeve body.

5. A simple and convenient hydraulic forming device for zirconium core forming according to claim 1, characterized in that: The pressure plate includes a pressure plate body, which is circular in shape. A fixing screw hole is opened at the upper center of the pressure plate body. The clamping body is a hollow cylindrical shape and is fixedly installed at the bottom of the pressure plate body. The clamping body and the pressure plate body are concentric.

6. A simple and convenient hydraulic forming device for zircon core forming according to claim 1, characterized in that: The mandrel includes a mandrel body, which is a T-shaped cylinder. The upper end face of the mandrel body has an upper chamfer, and the bottom of the mandrel body has an arc-shaped transition surface.

7. A simple and convenient hydraulic forming device for zirconium core forming according to claim 5, characterized in that: The inner diameter of the clamping body is larger than the outer diameter of the mandrel body, and the bottom diameter of the mandrel body is smaller than the inner diameter of the sleeve body; the center diameter of the release shim is larger than the bottom outer diameter of the mandrel body.

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