A large thin-walled complex component block assembly type mold and a preparation method thereof

Abstract

The application is suitable for the technical field of wax mold preparation, and provides a large-scale extremely thin-wall complex component block combination type mold and a preparation method thereof. The large-scale extremely thin-wall complex component block combination type mold comprises a box body, a mold seat is fixedly installed at the top of the box body, an inner mold and two outer molds are arranged above the mold seat, the inner mold and the two outer molds are used for forming large-scale extremely thin-wall complex wax molds, and the bottom of the inner mold is fixedly connected with the top of the mold seat. A top mold is arranged on the inner mold and the two outer molds, and a plurality of wax injection openings are formed in the top mold. The large-scale extremely thin-wall complex component block combination type mold and the preparation method thereof solve the problem that the existing mold needs to be manually assembled and disassembled by workers, which leads to time-consuming and laborious process, increases the labor intensity of the operators, and affects the wax mold preparation efficiency.

Description

Technical Field

[0001] This invention belongs to the field of wax mold preparation technology, and particularly relates to a large, ultra-thin-walled, complex component modular mold and its preparation method. Background Technology

[0002] Large, ultra-thin-walled, complex component modular molds are mainly used to manufacture wax models with complex geometric shapes and ultra-thin walls. These molds typically disassemble the overall structure into multiple detachable and assembleable modules to meet the demolding requirements after the wax model is formed. The core of the process is to inject molten wax into a special wax pressing mold. After the wax cools and solidifies, the mold is demolded to obtain a wax prototype with the same size and shape as the finished component. Subsequent processes such as sanding, shell making, dewaxing, and pouring molten metal are then carried out to finally produce the metal component.

[0003] However, in practical use, existing wax injection molds require operators to manually assemble and disassemble multiple modular units before wax injection and after dewaxing. This process is time-consuming and labor-intensive, significantly increasing the workload of operators and affecting the efficiency of wax mold preparation. Therefore, it is necessary to provide a modular assembly mold for large, ultra-thin-walled complex components and its preparation method to solve the above problems. Summary of the Invention

[0004] This invention provides a modular assembly mold for large, ultra-thin-walled complex components and its preparation method, aiming to solve the problem mentioned in the background art that the existing wax molds require manual assembly and disassembly of modules, which is time-consuming and labor-intensive, increasing the labor intensity of operators and affecting the efficiency of wax mold preparation.

[0005] To solve the above problems, the present invention is implemented as follows: a modular mold for large, ultra-thin-walled complex components, comprising: a box body, a mold base fixedly mounted on the top of the box body, an inner mold and two outer molds disposed above the mold base, the inner mold and the two outer molds being used to form large, ultra-thin-walled complex wax models, the bottom of the inner mold being fixedly connected to the top of the mold base; a top mold disposed on the inner mold and the two outer molds, the top mold having multiple wax injection ports; multiple inserts slidably mounted on the two outer molds for forming wax models, each of the multiple inserts having an arc-shaped plate fixedly mounted on its far side, each of the multiple arc-shaped plates having a first spring fixedly mounted on its far side, the ends of the multiple first springs being fixedly connected to the outer walls of the two outer molds respectively; and a clamping mechanism assembled on the box body for clamping the two outer molds and the multiple arc-shaped plates.

[0006] Preferably, the clamping mechanism includes: a dual-axis motor fixedly mounted on the inner wall of the bottom of the housing via a support base, with screws fixedly mounted on both output shafts of the dual-axis motor; two sliders threaded onto the two screws respectively, with second springs fixedly mounted on both sides of the two sliders, and a plurality of second springs located outside the two screws respectively; two strip-shaped holes opened on the top of the housing, with support plates disposed inside the two strip-shaped holes, and the bottoms of the two support plates fixedly connected to the tops of the two sliders respectively; two support blocks fixedly mounted on the tops of the two support plates respectively, with clamping plates fixedly mounted on the two support blocks, and two sliding rods slidably mounted on the two clamping plates, with the ends of the plurality of sliding rods close to each other fixedly connected to the outer walls of the two outer molds respectively; and a plurality of first baffles fixedly mounted on the plurality of sliding rods respectively.

[0007] Preferably, both clamping plates are provided with extrusion mechanisms, and the two extrusion mechanisms are used to extrude the two outer molds respectively.

[0008] Preferably, the extrusion mechanism includes: a mounting groove formed on the clamping plate, a third spring fixedly mounted on the inner wall of the mounting groove, a push block fixedly mounted on the third spring, and the push block contacting the outer wall of the outer mold.

[0009] Preferably, a sleeve is fixedly installed on the inner wall of the mounting groove. The sleeve is located inside the third spring. A support rod is slidably installed on the sleeve. One end of the support rod is fixedly connected to the push block, and a second baffle is fixedly installed on the other end of the support rod.

[0010] Preferably, two rectangular blocks for supporting screws are fixedly installed on the bottom inner wall of the housing, and the two rectangular blocks are rotatably connected to the two screws respectively.

[0011] Preferably, multiple connecting rods for supporting the support plates are fixedly installed inside both sides of the box body, and the multiple connecting rods are slidably connected to the two support plates respectively.

[0012] Preferably, the top mold has multiple mounting holes, each of which is provided with a bolt for fixing the top mold. Each of the bolts is threaded to the top of the inner mold, and a knob is fixedly installed on the top of each bolt.

[0013] Preferably, both outer molds and both clamping plates are arc-shaped, and the box body is rectangular.

[0014] This invention also proposes a wax model preparation method for a modular assembly mold of a large, ultra-thin-walled complex component, comprising the following steps: Step 1: Before use, disassemble and inspect the mold to ensure its integrity. Then, use gauze soaked in alcohol to clean and wipe the surface of the inner mold and the inner walls of the two outer molds. Next, apply a release agent to the surface of the inner mold and the inner walls of the two outer molds. The release agent is composed of 100% transformer oil or 100% methyl silicone oil. Then, restore the mold to its working state so that a molding cavity can be formed between the inner mold and the two outer molds for molding large, extremely thin-walled, complex wax molds. Step 2: Use a wax injection machine to inject liquid wax into the molding cavity of the mold through multiple wax injection ports. After filling it completely, let it stand and cool to obtain the corresponding wax model, such as the wax model of the equipment cabin shell. Because the surface of the inner mold and the gap between the two outer molds are small, the wall thickness of the obtained wax model is relatively thin. Also, the ends of the multiple inserts that are close to each other are located inside the molding cavity, and thus the wax model will form corresponding grooves around it. Step 3: Use multiple knobs to turn multiple bolts, disengaging them from the mounting holes on the inner and top molds. After disengagement, remove the top mold from the top of the inner and two outer molds. Then, start the dual-axis motor. The motor will drive two screws to rotate, which in turn will move two sliders and multiple second springs until the sliders disengage from the threads of the screws and the second springs press against the inner wall of the housing. The sliders will then move two support plates along multiple connecting rods. The support plates will move two support blocks away from each other, and the support blocks will move two clamping plates away from each other and slide along multiple sliding rods. During this sliding process, the two second springs... The three springs use their own elasticity to push the two push blocks to squeeze the two outer molds, keeping the two outer molds stationary. As the two clamping plates move away from each other, the multiple arc plates gradually lose the squeezing force of the two clamping plates, allowing the multiple first springs to simultaneously push the multiple arc plates outward through their elasticity. This allows the multiple inserts to detach from the inside of the molding cavity and from the groove formed around the wax mold. When the two clamping plates contact the first baffles on the multiple sliding rods and continue to move to both sides, the multiple sliding rods will pull the two outer molds to both sides, causing the two outer molds to open to both sides. After opening, the molded wax mold can be removed from the inner mold, thus completing the preparation of the wax mold. Step 4: After completing the preparation of the wax model, clean the surface of the inner mold and the inner walls of the two outer molds again with gauze soaked in alcohol. Then, apply a release agent to the surface of the inner mold and the inner walls of the two outer molds. Next, start the dual-axis motor in reverse. The dual-axis motor will drive the two screws to reverse. Under the elastic action of the second spring, the two sliders will be smoothly threaded onto the threaded parts of the two screws and move, thus bringing the two clamping plates closer together. The two clamping plates will first drive the two outer molds closer together through multiple sliding rods until the two outer molds are in contact. Then, the two clamping plates will move closer together. Next, the pusher block in contact with the outer mold moves into the mounting groove and squeezes the third spring until the two clamping plates press tightly onto the two outer molds. As the two clamping plates are about to press tightly onto the two outer molds, the two clamping plates push multiple arc plates to move inward, causing the multiple arc plates to squeeze multiple first springs and drive multiple inserts to move into the molding cavity until the two clamping plates press tightly onto the two outer molds. Then, the top mold is fixed to the top of the inner mold and the two outer molds with multiple bolts, and the mold can be restored to the use state. Then, steps two and three can be repeated to prepare the next wax model.

[0015] Beneficial effects: Compared with existing technologies, this solution can not only quickly detach multiple inserts from the inside of the molding cavity, but also quickly open the two outer molds to the sides. It can also quickly insert multiple inserts into the molding cavity formed between the inner mold and the two outer molds in the opposite way, and splice the two outer molds together, so that the mold can be quickly disassembled and assembled. This reduces the labor intensity of operators and effectively solves the problem that existing wax molds require manual assembly and disassembly of modules, which is time-consuming and labor-intensive, increases the labor intensity of operators, and affects the efficiency of wax mold preparation. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a modular assembly mold for large, ultra-thin-walled complex components provided by the present invention; Figure 2 This is a three-dimensional structural diagram of the outer mold in this invention; Figure 3 This is a schematic diagram of the front sectional view of a modular assembly mold for large, ultra-thin-walled complex components provided by the present invention; Figure 4 for Figure 3 An enlarged structural diagram of part A shown in the figure; Figure 5 for Figure 3 An enlarged structural diagram of part B shown in the figure; Figure 6 for Figure 3 An enlarged structural diagram of section C shown in the figure; Figure 7 for Figure 3 An enlarged structural diagram of part D shown in the figure; Figure 8 for Figure 3 An enlarged structural diagram of part E shown in the figure; Figure 9 This is a cross-sectional view of the sleeve, support rod, and second baffle in this invention. Figure 10 This is a schematic diagram of the assembly structure of the bolts and knobs in this invention.

[0017] Reference numerals: 1. Box body; 2. Mold base; 3. Inner mold; 4. Outer mold; 5. Top mold; 6. Insert; 7. Arc plate; 8. First spring; 9. Support base; 10. Dual-axis motor; 11. Screw; 12. Slider; 13. Second spring; 14. Strip hole; 15. Support plate; 16. Support block; 17. Clamping plate; 18. Slide rod; 19. First baffle; 20. Mounting groove; 21. Third spring; 22. 23. Push block; 24. Sleeve; 25. Support rod; 26. Second baffle; 27. Rectangular block; 28. Limiting rod; 29. ​​Lead screw; 30. First bevel gear; 31. Second bevel gear; 32. Push plate; 33. Push rod; 34. First annular plate; 35. Second annular plate; 36. Connecting rod; 37. Counterweight; 38. Wax injection port; 39. Mounting hole; 40. Bolt; 41. Knob; 42. Arc groove. Detailed Implementation

[0018] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0019] This invention provides a modular assembly mold for large, ultra-thin-walled, complex components, such as... Figure 1-10As shown, a modular mold for large, ultra-thin-walled complex components includes: a box body 1, a mold base 2 fixedly mounted on the top of the box body 1, an inner mold 3 and two outer molds 4 disposed above the mold base 2, the inner mold 3 and the two outer molds 4 being used to form large, ultra-thin-walled complex wax models, the bottom of the inner mold 3 being fixedly connected to the top of the mold base 2; a top mold 5 disposed on the inner mold 3 and the two outer molds 4, the top mold 5 having multiple wax injection ports 37; multiple inserts 6 slidably mounted on the two outer molds 4 for forming wax models, each of the multiple inserts 6 having an arc-shaped plate 7 fixedly mounted on the side away from each other, each of the multiple arc-shaped plates 7 having a first spring 8 fixedly mounted on the multiple arc-shaped plates 7, the ends of the multiple first springs 8 being close to each other being fixedly connected to the outer walls of the two outer molds 4; and a clamping mechanism assembled on the box body 1 for clamping the two outer molds 4 and the multiple arc-shaped plates 7.

[0020] In this embodiment, when using the mold, a wax injection machine is used to inject liquid wax from multiple wax injection ports 37 into the molding cavity formed between the inner mold 3 and the two outer molds 4. After filling the cavity completely, the mold is left to stand and cool to obtain a wax model, such as a wax model for an equipment compartment shell. Because the gap between the surface of the inner mold 3 and the two outer molds 4 is small, the resulting wax model has a thinner wall thickness. Furthermore, the ends of the multiple inserts 6 that are close to each other are located inside the molding cavity, thus forming corresponding grooves around the resulting wax model. Then, the top mold 5 is removed from the top of the inner mold 3 and the two outer molds 4. Then, the clamping mechanism is activated to release the clamps on the two outer molds 4 and the multiple arc-shaped plates 7, allowing multiple first... The spring 8 simultaneously pushes multiple arc-shaped plates 7 outward through elasticity, allowing multiple inserts 6 to detach from the inside of the molding cavity and from the groove formed around the wax model. Furthermore, after the multiple inserts 6 detach, the two outer molds 4 can be opened to both sides. After opening, the molded wax model can be removed from the inner mold 3, thus completing the preparation of the wax model. After removing the wax model, the entire wax model is immersed in water at 15-25℃ and kept in the water bath for more than 30 minutes to ensure the dimensional stability of the wax model. After the water bath, the surface oil film is wiped off with a soft cloth. Then, the wax model is cleaned of burrs, flash, local protrusions, and edges, and chamfered. Repair wax is used to fill surface wrinkles, wax model assembly parts, and other surface damage.

[0021] In a further preferred embodiment of the present invention, the clamping mechanism includes: a dual-axis motor 10 fixedly mounted on the inner wall of the bottom of the housing 1 via a support base 9, with screws 11 fixedly mounted on both output shafts of the dual-axis motor 10; two sliders 12 respectively threaded onto the two screws 11, with second springs 13 fixedly mounted on both sides of the two sliders 12, and multiple second springs 13 located outside the two screws 11; two strip holes 14 formed on the top of the housing 1, with support plates 15 disposed inside the two strip holes 14, and the bottoms of the two support plates 15 respectively fixedly connected to the tops of the two sliders 12; two support blocks 16 respectively fixedly mounted on the tops of the two support plates 15, with clamping plates 17 fixedly mounted on the two support blocks 16, and two sliding rods 18 slidably mounted on the two clamping plates 17, with the ends of the multiple sliding rods 18 close to each other respectively fixedly connected to the outer walls of the two outer molds 4; and multiple first baffles 19 respectively fixedly mounted on the multiple sliding rods 18.

[0022] In this embodiment, the clamping mechanism is used to clamp two outer molds 4 and multiple arc-shaped plates 7. Before use, the top mold 5 is removed from the top of the inner mold 3 and the two outer molds 4. Then, the dual-axis motor 10 is started. The dual-axis motor 10 drives two screws 11 to rotate. The two screws 11 drive two sliders 12 and multiple second springs 13 to move until the two sliders 12 disengage from the threads of the two screws 11 and the second springs 13 are pressed against the inner wall of the housing 1. The two sliders 12 drive two support plates 15 to slide on multiple connecting rods 35. The two support plates 15 drive two support blocks 16 to move away from each other. The two support blocks 16 drive two clamping plates 17 to move away from each other and slide on multiple sliding rods 18. During the sliding process, Two third springs 21, through their own elasticity, push two push blocks 22 to compress the two outer molds 4, keeping them stationary. As the two clamping plates 17 move away from each other, the multiple arc-shaped plates 7 gradually lose the compression of the clamping plates 17, allowing the multiple inserts 6 to detach from the grooves formed around the molding cavity and the wax mold under the elastic action of the multiple first springs 8. When the two clamping plates 17 contact the first baffles 19 on the multiple slide rods 18 and continue to move to both sides, the multiple slide rods 18 will pull the two outer molds 4 to both sides, causing them to open. After opening, the molded wax mold can be easily removed from the inner mold 3, saving workers considerable physical effort and time, and eliminating the need for further processing. For complex disassembly work, this method improves work efficiency. By reversing the dual-axis motor 10, the two screws 11 reverse. Under the elastic action of the second spring 13, the two sliders 12 smoothly thread onto the threaded parts of the two screws 11 and move, thereby bringing the two clamping plates 17 closer together. The two clamping plates 17 first drive the two outer molds 4 to move closer together through multiple sliding rods 18 until the two outer molds 4 come into contact. Then, as the two clamping plates 17 move closer together, the push block 22 in contact with the outer molds 4 moves into the mounting groove 20 and squeezes the third spring 21 until the two clamping plates 17 are tightly pressed onto the two outer molds 4. When the two clamping plates 17 are about to tightly press onto the two outer molds 4... During the process, the two clamping plates 17 will push multiple arc-shaped plates 7 to move inward, causing the multiple arc-shaped plates 7 to press against multiple first springs 8, and driving multiple inserts 6 to move into the molding cavity until the two clamping plates 17 are tightly pressed onto the two outer molds 4. Then, the top mold 5 is fixed to the top of the inner mold 3 and the two outer molds 4 by multiple bolts 39, and the mold can be restored to the working state. It should be noted that when the two sliders 12 approach each other and disengage from the threaded part of the screw 11 again, the second spring 13 on the other side will press against the rectangular block 26. At this time, even if the screw 11 continues to rotate, the slider 12 will not move. When the screw 11 rotates forward, the slider 12 will reconnect with the threaded part of the screw 11 under the action of elasticity.

[0023] In a further preferred embodiment of the present invention, each of the two clamping plates 17 is provided with a pressing mechanism, and the two pressing mechanisms are respectively used to press the two outer molds 4.

[0024] In this embodiment, the use of the extrusion mechanism ensures that the outer mold 4 does not move during the process of the insert 6 leaving the molding cavity, so as to prevent the simultaneous movement of the insert 6 and the outer mold 4 from damaging the obtained wax model.

[0025] In a further preferred embodiment of the present invention, the extrusion mechanism includes: a mounting groove 20 formed on the clamping plate 17, a third spring 21 fixedly mounted on the inner wall of the mounting groove 20, a push block 22 fixedly mounted on the third spring 21, and the push block 22 contacting the outer wall of the outer mold 4.

[0026] In this embodiment, when the clamping plate 17 moves outward, the arc plate 7 in contact with it will first lose its compression. Under the elastic action of the first spring 8, the arc plate 7 can drive the insert 6 to disengage from the molding cavity. During the disengagement process, the clamping plate 17 will slide on the slide rod 18. The third spring 21 will push the push block 22 to compress the outer mold 4 through elasticity to prevent the outer mold 4 and the insert 6 from moving synchronously. After the insert 6 disengages from the molding cavity, the clamping plate 17 will come into contact with the first baffle 19 and drive the slide rod 18 to move through the first baffle 19. The slide rod 18 will drive the outer mold 4 to move outward, and vice versa.

[0027] In a further preferred embodiment of the present invention, a sleeve 23 is fixedly installed on the inner wall of the mounting groove 20. The sleeve 23 is located inside the third spring 21. A support rod 24 is slidably installed on the sleeve 23. One end of the support rod 24 is fixedly connected to the push block 22, and a second baffle 25 is fixedly installed on the other end of the support rod 24.

[0028] In this embodiment, the cooperation of sleeve 23, support rod 24 and second baffle 25 can ensure the stability of push block 22 during horizontal movement. When push block 22 moves horizontally, support rod 24 connected to it will slide on sleeve 23 at the same time. Under the action of second baffle 25, support rod 24 can be prevented from disengaging from sleeve 23.

[0029] In a further preferred embodiment of the present invention, two rectangular blocks 26 for supporting screws 11 are fixedly installed on the bottom inner wall of the housing 1, and the two rectangular blocks 26 are rotatably connected to the two screws 11 respectively.

[0030] In this embodiment, the use of rectangular block 26 can support screw 11, making screw 11 more stable during rotation.

[0031] In a further preferred embodiment of the present invention, a plurality of connecting rods 35 for supporting support plates 15 are fixedly installed inside both sides of the housing 1, and the plurality of connecting rods 35 are slidably connected to the two support plates 15 respectively.

[0032] In this embodiment, the use of the connecting rod 35 can provide better support for the support plate 15, reduce the weight of the support plate 15 transferred to the slider 12, and protect the screw 11.

[0033] In a further preferred embodiment of the present invention, the top mold 5 is provided with a plurality of mounting holes 38, and each of the plurality of mounting holes 38 is provided with a bolt 39 for fixing the top mold 5. The plurality of bolts 39 are threadedly connected to the top of the inner mold 3, and a knob 40 is fixedly installed on the top of each of the plurality of bolts 39.

[0034] In this embodiment, the use of multiple knobs 40 allows people to easily rotate multiple bolts 39 by hand to remove and install them, thereby facilitating the fixing and disassembly of the top mold 5.

[0035] In a further preferred embodiment of the present invention, both outer molds 4 and both clamping plates 17 are configured as arc shapes, and the box body 1 is configured as a rectangle.

[0036] In this embodiment, by setting the two outer molds 4 and the two clamping plates 17 into an arc shape, the two clamping plates 17 can better clamp and fix the two outer molds 4, and can achieve better fit.

[0037] To further improve the performance of this device, in addition to the above-mentioned solutions, this solution also includes the following embodiments: In another embodiment of the present invention, a demolding mechanism for ejecting wax molds is installed on the housing 1. The demolding mechanism includes: two limiting rods 27 fixedly installed on the inner wall of the top of the housing 1; two lead screws 28 rotatably installed on the inner wall of the top of the housing 1, each of the two lead screws 28 having a push plate 31 threadedly installed on it, and the two push plates 31 being slidably connected to the two limiting rods 27 respectively; a plurality of push rods 32 slidably installed on the housing 1 and the mold base 2, the bottom ends of the plurality of push rods 32 being fixedly installed with the same first annular plate 33; and a second annular plate 34 fixedly installed on the top ends of the plurality of push rods 32, the second annular plate 34 being adapted to the arc grooves 41 on the two outer molds 4.

[0038] In this embodiment, when the dual-axis motor 10 drives the two screws 11 to rotate, the two screws 11 drive the two second bevel gears 30 to rotate. The two second bevel gears 30 drive the two lead screws 28 to rotate through the two first bevel gears 29. The two lead screws 28 drive the two push plates 31 to slide vertically on the two limit rods 27 and gradually approach the first annular plate 33. Since the diameter of the two second bevel gears 30 is smaller than the diameter of the two first bevel gears 29, the rotation speed of the two lead screws 28 is much lower than the rotation speed of the two screws 11. As a result, the two outer molds 4 will be driven to move outward first. After the two outer molds 4 have moved outward to the corresponding distance, the two push plates 31 will contact the first annular plate 33 and push upward. The first annular plate 33 will drive multiple push rods 32 to move upward. The multiple push rods 32 will drive the same second annular plate 34 to move upward, thereby pushing the wax model formed on the inner mold 3 upward. This makes it convenient for people to demold the wax model. Demolding is relatively simple and convenient, and also relatively stable.

[0039] In another embodiment of the present invention, a counterweight 36 is fixedly installed at the bottom of the first annular plate 33, and the counterweight 36 is rectangular.

[0040] In this embodiment, when the dual-axis motor 10 runs in reverse and lowers the two push plates 31 to their original positions, the use of the counterweight 36 enables the first annular plate 33 to drive multiple push rods 32 to descend by its weight, thereby lowering the second annular plate 34 to its original position for the next use.

[0041] This invention also proposes a wax model preparation method for a modular assembly mold of a large, ultra-thin-walled complex component, comprising the following steps: Step 1: Before use, disassemble and inspect the mold to ensure its integrity. Then, use gauze soaked in alcohol to clean and wipe the surface of the inner mold 3 and the inner walls of the two outer molds 4. Next, apply a release agent to the surface of the inner mold 3 and the inner walls of the two outer molds 4. The release agent is composed of 100% transformer oil or 100% methyl silicone oil. Then, restore the mold to its working state so that a molding cavity for molding large, extremely thin-walled, complex wax molds can be formed between the inner mold 3 and the two outer molds 4. Step 2: Use a wax injection machine to inject liquid wax from multiple wax injection ports 37 into the molding cavity of the mold. After filling it completely, let it stand and cool to obtain the corresponding wax model, such as the wax model of the equipment cabin shell. Because the gap between the surface of the inner mold 3 and the two outer molds 4 is small, the wall thickness of the obtained wax model is relatively thin. Also, the ends of the multiple inserts 6 that are close to each other are located inside the molding cavity, and thus the wax model will form corresponding grooves around it. Step 3: Use multiple knobs 40 to rotate multiple bolts 39, causing the bolts 39 to disengage from the mounting holes 38 on the inner mold 3 and the top mold 5. After disengagement, remove the top mold 5 from the top of the inner mold 3 and the two outer molds 4. Then, start the dual-axis motor 10. The dual-axis motor 10 will drive the two screws 11 to rotate. The two screws 11 will drive the two sliders 12 and multiple second springs 13 to move until the two sliders 12 disengage from the threads of the two screws 11 and the multiple second springs 13 are pressed against the inner wall of the housing 1. The two sliders 12 will drive the two support plates 15 to slide on multiple connecting rods 35. The two support plates 15 will drive the two support blocks 16 to move away from each other. The two support blocks 16 will drive the two clamping plates 17 to move away from each other and onto multiple sliding rods 18. During the sliding process, the two third springs 21 will push the two push blocks 22 to squeeze the two outer molds 4 through their own elasticity, so that the two outer molds 4 remain stationary. As the two clamping plates 17 move away from each other, the multiple arc plates 7 will gradually lose the squeezing of the two clamping plates 17, so that the multiple first springs 8 can simultaneously push the multiple arc plates 7 outward through their elasticity, so that the multiple inserts 6 can be separated from the inside of the molding cavity and from the groove formed around the wax model. When the two clamping plates 17 contact the first baffles 19 on the multiple slide rods 18 and continue to move to both sides, the multiple slide rods 18 will pull the two outer molds 4 to both sides, so that the two outer molds 4 open to both sides. After opening, the molded wax model can be taken out from the inner mold 3, thus completing the preparation of the wax model. Step 4: After completing the preparation of the wax model, clean the surface of the inner mold 3 and the inner walls of the two outer molds 4 again with gauze soaked in alcohol. Then, apply a release agent to the surface of the inner mold 3 and the inner walls of the two outer molds 4. Then, start the dual-axis motor 10 in reverse. The dual-axis motor 10 will drive the two screws 11 to reverse. Under the elastic action of multiple second springs 13, the two sliders 12 will be smoothly threaded onto the threaded parts of the two screws 11 and move, thereby bringing the two clamping plates 17 closer together. The two clamping plates 17 will first drive the two outer molds 4 to move closer together through multiple sliding rods 18 until the two outer molds 4 are in contact. Then, the two clamping plates 17 will move closer together. Next, the push block 22, which is in contact with the outer mold 4, moves into the mounting groove 20 and squeezes the third spring 21 until the two clamping plates 17 are pressed tightly onto the two outer molds 4. When the two clamping plates 17 are about to press tightly onto the two outer molds 4, the two clamping plates 17 will push multiple arc plates 7 to move inward, so that the multiple arc plates 7 squeeze multiple first springs 8 and drive multiple inserts 6 to move into the molding cavity until the two clamping plates 17 are pressed tightly onto the two outer molds 4. Then, the top mold 5 is fixed to the top of the inner mold 3 and the two outer molds 4 by multiple bolts 39, so that the mold can be restored to the use state. Then, steps two and three can be repeated to prepare the next wax mold.

[0042] By using this large, ultra-thin-walled, complex component modular assembly mold and its preparation method, multiple inserts 6 can be quickly detached from the inside of the molding cavity. The two outer molds 4 can also be quickly opened to both sides, allowing multiple inserts 6 to be quickly inserted into the molding cavity formed between the inner mold 3 and the two outer molds 4 in the opposite manner. Furthermore, the two outer molds 4 can be spliced ​​together, enabling the mold to be quickly disassembled and assembled. This reduces the labor intensity of operators and effectively solves the problem that existing wax molds require manual assembly and disassembly of modules, resulting in a time-consuming and labor-intensive process that increases the labor intensity of operators and affects the efficiency of wax mold preparation.

[0043] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A modular assembly mold for large, ultra-thin-walled complex components, characterized in that, include: The box body has a mold base fixedly installed on its top. An inner mold and two outer molds are arranged above the mold base. The inner mold and the two outer molds are used to form large, extremely thin-walled, complex wax models. The bottom of the inner mold is fixedly connected to the top of the mold base. A top mold is provided on the inner mold and the two outer molds, and the top mold has multiple wax injection ports; Multiple inserts for forming wax models are slidably mounted on the two outer molds respectively. An arc-shaped plate is fixedly mounted on the side of each insert that is far apart from each other. A first spring is fixedly mounted on each of the arc-shaped plates. The ends of the multiple first springs that are close to each other are fixedly connected to the outer walls of the two outer molds respectively. A clamping mechanism is mounted on the housing to hold two outer molds and multiple curved plates.

2. The modular assembly mold for large, ultra-thin-walled complex components as described in claim 1, characterized in that, The clamping mechanism includes: A dual-axis motor is fixedly installed on the inner wall of the bottom of the housing via a support base, and screws are fixedly installed on both output shafts of the dual-axis motor. Two sliders are respectively threaded onto the two screws, and a second spring is fixedly installed on both sides of each slider. A plurality of the second springs are located on the outside of the two screws. Two strip-shaped holes are formed on the top of the box body, and a support plate is provided inside each of the two strip-shaped holes. The bottom of the two support plates is fixedly connected to the top of the two sliders respectively. Two support blocks are fixedly installed on the top of the two support plates respectively. Each of the two support blocks is fixedly installed with a clamping plate. Each of the two clamping plates is slidably installed with two sliding rods. The ends of the multiple sliding rods that are close to each other are fixedly connected to the outer walls of the two outer molds respectively. Multiple first baffles are fixedly installed on multiple sliding rods respectively.

3. The modular assembly mold for large, ultra-thin-walled complex components as described in claim 2, characterized in that, Both clamping plates are equipped with extrusion mechanisms, which are used to extrude the two outer molds respectively.

4. The modular assembly mold for large, ultra-thin-walled complex components as described in claim 3, characterized in that, The extrusion mechanism includes: A mounting groove is formed in the clamping plate, and a third spring is fixedly installed on the inner wall of the mounting groove. A push block is fixedly installed on the third spring, and the push block is in contact with the outer wall of the outer mold.

5. The modular assembly mold for large, ultra-thin-walled complex components as described in claim 4, characterized in that, A sleeve is fixedly installed on the inner wall of the mounting groove. The sleeve is located inside the third spring. A support rod is slidably installed on the sleeve. One end of the support rod is fixedly connected to the push block, and a second baffle is fixedly installed on the other end of the support rod.

6. The modular assembly mold for large, ultra-thin-walled complex components as described in claim 2, characterized in that, Two rectangular blocks for supporting screws are fixedly installed on the bottom inner wall of the box, and the two rectangular blocks are rotatably connected to the two screws respectively.

7. The modular assembly mold for large, ultra-thin-walled complex components as described in claim 2, characterized in that, Multiple connecting rods for supporting the support plates are fixedly installed inside both sides of the box, and the multiple connecting rods are slidably connected to the two support plates respectively.

8. The modular assembly mold for large, ultra-thin-walled complex components as described in claim 1, characterized in that, The top mold has multiple mounting holes, each containing a bolt for fixing the top mold. Each bolt is threaded to the top of the inner mold, and a knob is fixedly installed on the top of each bolt.

9. The modular assembly mold for large, ultra-thin-walled complex components as described in claim 2, characterized in that, Both outer molds and both clamping plates are set to arc shape, and the box body is set to rectangle.

10. The method for preparing a wax model of a modular mold for large, ultra-thin-walled complex components according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Before use, disassemble and inspect the mold to ensure its integrity. Then, use gauze soaked in alcohol to clean and wipe the surface of the inner mold and the inner walls of the two outer molds. Next, apply a release agent to the surface of the inner mold and the inner walls of the two outer molds. The release agent is composed of 100% transformer oil or 100% methyl silicone oil. Then, restore the mold to its working state so that a molding cavity can be formed between the inner mold and the two outer molds for molding large, extremely thin-walled, complex wax molds. Step 2: Use a wax injection machine to inject liquid wax into the molding cavity of the mold through multiple wax injection ports. After filling it completely, let it stand and cool to obtain the corresponding wax model, such as the wax model of the equipment cabin shell. Because the surface of the inner mold and the gap between the two outer molds are small, the wall thickness of the obtained wax model is relatively thin. Also, the ends of the multiple inserts that are close to each other are located inside the molding cavity, and thus the wax model will form corresponding grooves around it. Step 3: Use multiple knobs to turn multiple bolts, disengaging them from the mounting holes on the inner and top molds. After disengagement, remove the top mold from the top of the inner and two outer molds. Then, start the dual-axis motor. The motor will drive two screws to rotate, which in turn will move two sliders and multiple second springs until the sliders disengage from the threads of the screws and the second springs press against the inner wall of the housing. The sliders will then move two support plates along multiple connecting rods. The support plates will move two support blocks away from each other, and the support blocks will move two clamping plates away from each other and slide along multiple sliding rods. During this sliding process, the two second springs... The three springs use their own elasticity to push the two push blocks to squeeze the two outer molds, keeping the two outer molds stationary. As the two clamping plates move away from each other, the multiple arc plates gradually lose the squeezing force of the two clamping plates, allowing the multiple first springs to simultaneously push the multiple arc plates outward through their elasticity. This allows the multiple inserts to detach from the inside of the molding cavity and from the groove formed around the wax mold. When the two clamping plates contact the first baffles on the multiple sliding rods and continue to move to both sides, the multiple sliding rods will pull the two outer molds to both sides, causing the two outer molds to open to both sides. After opening, the molded wax mold can be removed from the inner mold, thus completing the preparation of the wax mold. Step 4: After completing the preparation of the wax model, clean the surface of the inner mold and the inner walls of the two outer molds again with gauze soaked in alcohol. Then, apply a release agent to the surface of the inner mold and the inner walls of the two outer molds. Next, start the dual-axis motor in reverse. The dual-axis motor will drive the two screws to reverse. Under the elastic action of the second spring, the two sliders will be smoothly threaded onto the threaded parts of the two screws and move, thus bringing the two clamping plates closer together. The two clamping plates will first drive the two outer molds closer together through multiple sliding rods until the two outer molds are in contact. Then, the two clamping plates will move closer together. Next, the pusher block in contact with the outer mold moves into the mounting groove and squeezes the third spring until the two clamping plates press tightly onto the two outer molds. As the two clamping plates are about to press tightly onto the two outer molds, the two clamping plates push multiple arc plates to move inward, causing the multiple arc plates to squeeze multiple first springs and drive multiple inserts to move into the molding cavity until the two clamping plates press tightly onto the two outer molds. Then, the top mold is fixed to the top of the inner mold and the two outer molds with multiple bolts, and the mold can be restored to the use state. Then, steps two and three can be repeated to prepare the next wax model.

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