Large mold rapid machining device and machining method thereof
By using large-scale mold rapid processing devices and corresponding processing methods in mold processing of automotive decorative parts, the problems of long development cycles and low mold accuracy under traditional technology are solved, and efficient and accurate parts processing and mold reuse are achieved.
Patent Information
- Application Number
- CN202411194101.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-02-11
AI Technical Summary
The development cycle of existing automotive decorative parts is mainly due to the low efficiency of traditional processing technology, which leads to low mold accuracy, which requires multiple verification and modification, which affects the development process of the entire vehicle.
Using large-scale mold rapid processing equipment and corresponding processing methods, the upper and lower wooden boxes are filled with mixed fillers of fine sand and solidification agent to form mold kernels, and the crude embryo of aluminum alloy parts is finely processed through CNC lathes to reduce metal consumption and processing time.
It shortens the development cycle of large parts, improves processing efficiency, reduces the consumption of metal materials, ensures the accuracy of the mold and the quality of the parts, and avoids the difficulty and damage of the mold during use.
Smart Images
Figure CN119407105A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of moulds, in particular to a large-scale mould rapid processing device and a processing method thereof. Background Art
[0002] With the continuous development of social economy and the progress of science and technology, cars have become the main means of transportation for people. In recent years, the development of the automobile industry has also been advancing by leaps and bounds. With the improvement of people's living conditions, the requirements for the shape of automobile decorative parts are getting higher and higher, which must not only meet the refreshing visual experience but also achieve a mature, stable and durable loading structure. At present, the update and iteration cycle of automobile parts in the market is also constantly shortening. The large decorative parts (such as bumpers and large interior center consoles) usually used for the interior and exterior of automobiles cannot be completed synchronously with other small parts due to their development cycle being limited by existing processing technology and processes, thus affecting the development process of the entire vehicle.
[0003] In order to solve the problem of long development cycle, the present invention makes a research and analysis based on the traditional process. The traditional process has low processing efficiency, which is reflected in large cutting volume, long processing time, and waste of steel. Due to excessive machine processing and the stress of the steel itself, the final parts are greatly deformed, which affects the accuracy of the mold and requires multiple verifications and changes to the mold before the technical requirements of the product can be met. In order to solve the above difficulties and improve production efficiency, a large mold rapid processing device and a processing method thereof are proposed. Summary of the invention
[0004] The purpose of the present invention is to provide a large-scale mold rapid processing device and a processing method thereof. By making a large-scale part mold, the metal material consumed in the processing of large parts can be reduced. At the same time, the large-scale mold can be reused, and the metal parts cast in the large-scale mold can avoid the problem of changing the surface stress by cutting the entire piece of metal, thereby improving the quality of the metal parts to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a large-scale mold rapid processing device, comprising an upper wooden box and a lower wooden box, the upper wooden box is located on the top of the lower wooden box, the inner cavities of the upper wooden box and the lower wooden box are filled with fillers, a rough part blank is arranged inside the filler, the rough part blank extrude the filler to form a mold core, locking components are arranged on the outer sides of the upper wooden box and the lower wooden box, and a pouring port is opened on the top of the upper wooden box.
[0006] Preferably, the locking assembly includes a plurality of movable plates that rotate on the outside of the lower wooden box through a movable shaft, a fixed column is fixed to the outside of the upper wooden box, a slot is opened on the side of the movable plate, and the fixed column is connected to the movable plate through the slot.
[0007] Preferably, the filler is formed by stirring and mixing fine sand and a solidifying agent, and a release agent is coated between the inner cavity of the mold core and the rough part blank.
[0008] Based on a large mold rapid processing device, a large mold rapid processing method is also provided, comprising the following steps:
[0009] S1. Preparation
[0010] ①. Make wooden boxes. Make two sets of wooden boxes of the same volume, divided into upper wooden boxes and lower wooden boxes;
[0011] ②. To make the filler, mix the fine sand and coagulant in proportion and set aside;
[0012] S2. Make mold core
[0013] Fill the lower wooden box with the prepared filler, then place the rough part blank on the upper layer of the filler, press the rough part blank so that it sinks into the filler to form half of the mold core, and after the filler in the lower wooden box solidifies, buckle the upper wooden box on top of the lower wooden box, and fill the filler into the upper wooden box through the pouring port. After the filler in the upper wooden box solidifies, separate the upper wooden box from the lower wooden box, take out the rough part blank, and prepare the other half of the mold core. Put the upper wooden box and the lower wooden box together to form a complete mold core;
[0014] S3. Making rough blanks of alloy parts
[0015] The aluminum alloy liquid is poured into the mold core through the pouring port, and after the aluminum alloy liquid is completely solidified and cooled, a rough blank of an aluminum alloy part is made;
[0016] S4. Processing rough blanks of aluminum alloy parts
[0017] The rough aluminum alloy parts are mounted on a CNC lathe for fine processing to obtain high-precision aluminum alloy parts.
[0018] Preferably, in the preparation work of S1, hard and non-deformable wooden boards are selected to process the wooden boxes to prevent the wooden boards from being deformed by the filling material, resulting in changes in the mold core and causing the local size of the rough blank of the aluminum alloy parts to be smaller than the standard parts.
[0019] Preferably, in the S1 preparation work, a certain amount of fine sand is added into the mixing container, and then the coagulant is added into the mixing container in multiple times, and when filling the upper wooden boxes and the lower wooden boxes, the fillers used are all configured on-site during use, and the excess fillers are not used to make another set of wooden box fillers.
[0020] Preferably, in the S1 preparation work, after using the stirring container, the stirring container needs to be cleaned in time to avoid the residue of fine sand and coagulant, which causes the coagulant to adhere the fine sand to the inside of the stirring container and is difficult to remove.
[0021] Preferably, in S2, when making the mold core, before placing the rough part blank on the upper layer of the filler in the lower wooden box, a release agent needs to be applied to the surface of the rough part blank. At the same time, after the filler in the lower wooden box is completely solidified, a release agent needs to be applied again to the surface of the rough part blank and the filler in the lower wooden box. After adding the filler to the upper wooden box through the pouring mouth, before the filler is solidified, a columnar object is inserted into the pouring port, and the columnar object is inserted into the filler to contact with the rough part blank to form a pouring channel.
[0022] Preferably, in S2, when making the mold core, in the lower wooden box, when the rough part is pressed downward into the filler, all the fillers above the upper surface of the rough part need to be cleaned off.
[0023] Preferably, in S3, when making the rough aluminum alloy part, the aluminum alloy column above the rough aluminum alloy part after demoulding is cut off, and the rough aluminum alloy part is simply cleaned.
[0024] Compared with the prior art, the present invention has the following beneficial effects:
[0025] 1. The present invention adds fine sand mixed with a coagulant as a filler into the upper wooden box and the lower wooden box, so as to facilitate the support and shaping of the rough part embryo, and obtain a mold core with the same shape as the rough part embryo. At the same time, the coagulant is added to the fine sand to ensure the strength of the filler, and to avoid the filler from collapsing during demolding and casting of the rough part embryo, resulting in changes in the shape of the mold core. At the same time, through the production of large-scale part molds, the rough part embryo can be repeatedly used to process the rough part embryo, and then the rough part embryo can be fine-processed by a CNC lathe, thereby reducing metal consumption and speeding up the part processing.
[0026] 2. The present invention optimizes the processing method of large-part molds to avoid the difficulty in demoulding the large-part molds during later use, which causes the large-part molds to be damaged and unable to be used for a long time. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the device of the present invention;
[0028] Figure 2 It is a schematic diagram of the unfolded three-dimensional structure of the upper wooden box and the lower wooden box in the device of the present invention;
[0029] Figure 3 It is a schematic diagram of the unfolded three-dimensional structure of the device of the present invention;
[0030] Figure 4Flow chart of the method of the present invention.
[0031] Numbers in the figure: 1, upper wooden box; 2, lower wooden box; 3, filler; 4, rough part; 5, mold core; 6, locking assembly; 61, movable plate; 62, fixed column; 63, slot; 7, pouring gate. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0033] The present invention provides Figures 1 to 3 A large-scale mold rapid processing device shown in the figure comprises an upper wooden box 1 and a lower wooden box 2, wherein the upper wooden box 1 is located on the top of the lower wooden box 2, the inner cavities of the upper wooden box 1 and the lower wooden box 2 are filled with fillers 3, a rough part 4 is arranged inside the filler 3, the rough part 4 extrude the filler 3 to form a mold core 5, a locking assembly 6 is arranged on the outer sides of the upper wooden box 1 and the lower wooden box 2, and a pouring port 7 is opened on the top of the upper wooden box 1;
[0034] The upper wooden box 1 and the lower wooden box 2 are connected and fixed by the locking assembly 6 to prevent the filler 3 from overflowing from between the upper wooden box 1 and the lower wooden box 2 when the filler 3 is squeezed. At the same time, the filler 3 can be restrained to avoid the collapse of the mold core 5. When effective, the mold can be quickly formed and reused many times to process the rough blank 4 of the alloy part, reduce the consumption of metal parts, and shorten the time spent on cutting useless metal, which helps to improve the processing efficiency of metal parts.
[0035] The locking assembly 6 includes a plurality of movable plates 61 that rotate on the outside of the lower wooden box 2 through a movable shaft, a fixed column 62 is fixed to the outside of the upper wooden box 1, and a slot 63 is provided on the side of the movable plate 61. The fixed column 62 is engaged with the movable plate 61 through the slot 63. By rotating the movable plate 61, the fixed column 62 is inserted into the slot 63, and the upper wooden box 1 and the lower wooden box 2 are connected by the movable plate 61 to ensure relative stability between the upper wooden box 1 and the lower wooden box 2.
[0036] The filler 3 is formed by mixing fine sand and a coagulant, and a release agent is coated between the inner cavity of the mold core 5 and the rough part 4. By limiting the filler 3 and utilizing the fluidity of the fine sand, the traces on the surface of the rough part 4 can be well filled, ensuring that the shape of the rough part 4 is accurately replicated to form the mold core 5 for repeated use. At the same time, the use of the coagulant improves the stability of the fine sand after a certain period of time, thereby preventing the mold core 5 from collapsing due to the strong fluidity of the fine sand during demolding.
[0037] Based on a large mold rapid processing device, a large mold rapid processing method is also provided, such as Figure 4 As shown, the following steps are included:
[0038] S1. Preparation
[0039] ①. Make wooden boxes. Make two sets of wooden boxes of the same volume, divided into upper wooden box 1 and lower wooden box 2;
[0040] ②, make filler 3, mix fine sand and coagulant in proportion and set aside;
[0041] S2. Make mold core 5
[0042] Fill the lower wooden box 2 with the prepared filler 3, then place the rough part 4 on the upper layer of the filler 3, press the rough part 4 to make the rough part 4 sink into the filler 3, and form a half mold core 5. After the filler 3 in the lower wooden box 2 solidifies, buckle the upper wooden box 1 on the top of the lower wooden box 2, and fill the filler 3 into the upper wooden box 1 through the pouring port 7. After the filler 3 in the upper wooden box 1 solidifies, separate the upper wooden box 1 from the lower wooden box 2, take out the rough part 4, and prepare the other half of the mold core 5. Put the upper wooden box 1 and the lower wooden box 2 together to form a complete mold core 5.
[0043] S3. Making rough blanks of alloy parts 4
[0044] Aluminum alloy water is poured into the mold core 5 through the pouring port 7, and after the aluminum alloy water is completely solidified and cooled, a rough blank 4 of an aluminum alloy part is formed;
[0045] S4, Processing of aluminum alloy parts rough blank 4
[0046] The rough aluminum alloy part 4 is mounted on a CNC lathe for fine machining to obtain a high-precision aluminum alloy part;
[0047] By optimizing the processing methods of large-part molds, it is possible to avoid the difficulty in demoulding large-part molds during later use, which would cause the large-part molds to be damaged and unable to be used for a long time.
[0048] In the preparation work of S1, wooden boards with hard texture and not easy to deform are selected to process wooden boxes to prevent the wooden boards from being deformed when squeezed by the filler 3, resulting in changes in the mold core 5, and causing the local size of the obtained aluminum alloy part rough blank 4 to be smaller than the standard part. The materials of the upper wooden box 1 and the lower wooden box 2 are limited to ensure the strength of the wooden boxes and avoid damage to the upper wooden box 1 and the lower wooden box 2 during the production of the mold core 5, which affects the formation of the mold core 5. When the size of the mold core 5 is smaller than the standard part size, the metal part cannot be processed by repair, resulting in the scrapping of the entire metal part rough blank 4, causing serious waste of metal.
[0049] In the preparation of S1, a certain amount of fine sand is added into the mixing container, and then the coagulant is added into the mixing container in multiple times. When filling the upper wooden box 1 and the lower wooden box 2, the fillers 3 used are all configured on-site when used, and the excess fillers 3 are not used to make another group of wooden box fillers 3. By adding a certain amount of fine sand into the mixing container, the volume of the fine sand is ensured to be able to completely fill the upper wooden box 1 and the lower wooden box 2 separately, avoiding insufficient filler 3 for secondary processing. Due to the secondary processing, the ratio of fine sand to coagulant is different. At the same time, after the secondary processing, the two groups of fillers 3 form a time difference, and the fillers 3 processed for the first and second times cannot be perfectly bonded. The coagulant is added gradually to ensure that the fine sand has sufficient fluidity and avoid excessive coagulant.
[0050] In the S1 preparation work, after using the stirring container, the stirring container needs to be cleaned in time to avoid the residue of fine sand and coagulant, which causes the coagulant to stick the fine sand inside the stirring container and is difficult to remove. By cleaning the stirring container after stirring the filler 3, the cleanliness of the stirring container is ensured, and at the same time, the fine sand and coagulant are prevented from sticking inside the stirring container, causing the stirring container to malfunction.
[0051] In S2, when making the mold core 5, before placing the rough part 4 on the upper layer of the filler 3 in the lower wooden box 2, it is necessary to apply a release agent on the surface of the rough part 4. At the same time, after the filler 3 in the lower wooden box 2 is completely solidified, it is necessary to apply a release agent on the surface of the rough part 4 and the filler 3 in the lower wooden box 2 again. After adding the filler 3 into the upper wooden box 1 through the pouring gate 7, before the filler 3 is solidified, a columnar object is inserted into the pouring gate 7, and the columnar object is inserted into the filler 3 to contact the rough part 4 to form a pouring channel. By using a release agent during the processing of the mold core 5, it is avoided that the rough part 4 is adhered to the solidifying agent when contacting the filler 3 and is difficult to demold. At the same time, the columnar object is inserted into the upper mold from the pouring gate 7 to form a pouring channel between the filler 3 and the mold core 5, which is convenient for the injection of aluminum alloy water.
[0052] In S2, when the rough part 4 is pressed downward into the filler 3 in the lower wooden box 2, all the fillers 3 above the upper surface of the rough part 4 need to be cleaned off. When processing the mold core 5 in the lower wooden box 2, it is necessary to ensure that the fillers 3 above the rough part 4 are removed to avoid that the rough part 4 will be difficult to demold after solidification.
[0053] In S3 of making the rough alloy part 4, the aluminum alloy column above the rough aluminum alloy part 4 after demolding is cut off, and the rough aluminum alloy part 4 is simply cleaned. By cutting the aluminum alloy column on the rough aluminum alloy part 4, it is convenient to remove excess metal on the surface of the rough aluminum alloy part before CNC lathe processing, so that the CNC lathe can quickly perform fine processing on the metal parts.
[0054] When used specifically,
[0055] S1. Preparation
[0056] ①. Make wooden boxes. Make two sets of wooden boxes of the same volume, divided into upper wooden box 1 and lower wooden box 2;
[0057] ②, make filler 3, mix fine sand and coagulant in proportion and set aside;
[0058] S2. Make mold core 5
[0059] Fill the lower wooden box 2 with the prepared filler 3, then place the rough part 4 on the upper layer of the filler 3, press the rough part 4 to make the rough part 4 sink into the filler 3, and form a half mold core 5. After the filler 3 in the lower wooden box 2 solidifies, buckle the upper wooden box 1 on the top of the lower wooden box 2, and fill the filler 3 into the upper wooden box 1 through the pouring port 7. After the filler 3 in the upper wooden box 1 solidifies, separate the upper wooden box 1 from the lower wooden box 2, take out the rough part 4, and prepare the other half of the mold core 5. Put the upper wooden box 1 and the lower wooden box 2 together to form a complete mold core 5.
[0060] S3. Making rough blanks of alloy parts 4
[0061] Aluminum alloy water is poured into the mold core 5 through the pouring port 7, and after the aluminum alloy water is completely solidified and cooled, a rough blank 4 of an aluminum alloy part is formed;
[0062] S4, Processing of aluminum alloy parts rough blank 4
[0063] The rough aluminum alloy part 4 is mounted on a CNC lathe for fine machining to obtain a high-precision aluminum alloy part.
[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A large-scale mold rapid processing device, comprising an upper wooden box (1) and a lower wooden box (2), characterized in that: The upper wooden box (1) is located on the top of the lower wooden box (2); the inner cavities of the upper wooden box (1) and the lower wooden box (2) are filled with fillers (3); a rough part blank (4) is arranged inside the filler (3); the rough part blank (4) extrude the filler (3) to form a mold core (5); locking components (6) are arranged on the outer sides of the upper wooden box (1) and the lower wooden box (2); and a pouring port (7) is opened on the top of the upper wooden box (1).
2. A large mold rapid processing device according to claim 1, characterized in that: The locking assembly (6) comprises a plurality of movable plates (61) which are rotated on the outside of the lower wooden box (2) via a movable shaft, a fixed column (62) is fixed on the outside of the upper wooden box (1), a slot (63) is provided on the side of the movable plate (61), and the fixed column (62) is engaged with the movable plate (61) via the slot (63).
3. A large mold rapid processing device according to claim 1, characterized in that: The filler (3) is formed by mixing fine sand and a solidifying agent, and a release agent is coated between the inner cavity of the mold core (5) and the rough part (4).
4. A large mold rapid processing method, based on a large mold rapid processing device according to any one of claims 1 to 3, characterized in that: The steps include: S1. Preparation ①. Make wooden boxes. Make two sets of wooden boxes of the same volume, divided into upper wooden boxes and lower wooden boxes; ②. To make the filler, mix the fine sand and coagulant in proportion and set aside; S2. Make mold core Fill the lower wooden box with the prepared filler, then place the rough part blank on the upper layer of the filler, press the rough part blank so that it sinks into the filler to form half of the mold core, and after the filler in the lower wooden box solidifies, buckle the upper wooden box on top of the lower wooden box, and fill the filler into the upper wooden box through the pouring port. After the filler in the upper wooden box solidifies, separate the upper wooden box from the lower wooden box, take out the rough part blank, and prepare the other half of the mold core. Put the upper wooden box and the lower wooden box together to form a complete mold core; S3. Making rough blanks of alloy parts The aluminum alloy liquid is poured into the mold core through the pouring port, and after the aluminum alloy liquid is completely solidified and cooled, a rough blank of an aluminum alloy part is made; S4. Processing rough blanks of aluminum alloy parts The rough aluminum alloy parts are mounted on a CNC lathe for fine processing to obtain high-precision aluminum alloy parts.
5. A large mold rapid processing method according to claim 4, characterized in that: In the S1 preparation work, hard and non-deformable wooden boards are selected to process the wooden boxes to prevent the wooden boards from being deformed by the filling material, which will cause changes in the mold core and make the local size of the rough aluminum alloy parts smaller than the standard parts.
6. A large mold rapid processing method according to claim 4, characterized in that: In the S1 preparation work, a certain amount of fine sand is added into the mixing container, and then the coagulant is added into the mixing container in multiple times. When filling the upper wooden boxes and the lower wooden boxes, the fillers used are all configured on-site during use, and the excess fillers are not used to make the fillers for another set of wooden boxes.
7. A large mold rapid processing method according to claim 6, characterized in that: In the S1 preparation work, after using the mixing container, it is necessary to clean the mixing container in time to avoid the residue of fine sand and coagulant, which will cause the coagulant to adhere the fine sand to the inside of the mixing container and make it difficult to remove.
8. A large mold rapid processing method according to claim 4, characterized in that: In the S2 mold making process, before placing the rough part on the upper layer of the filler in the lower wooden box, a release agent needs to be applied to the surface of the rough part. After the filler in the lower wooden box is completely solidified, a release agent needs to be applied again to the surface of the rough part and the filler in the lower wooden box. After adding filler to the upper wooden box through the pouring mouth, before the filler is solidified, a columnar object is inserted into the pouring mouth, and the columnar object is inserted into the filler to contact with the rough part to form a pouring channel.
9. A large mold rapid processing method according to claim 4, characterized in that: In the S2 mold making process, when the rough part is pressed down into the filler in the lower wooden box, all the fillers above the upper surface of the rough part need to be cleaned off.
10. A large mold rapid processing method according to claim 4, characterized in that: In the S3 process of making rough blanks of alloy parts, the aluminum alloy column above the rough blanks of aluminum alloy parts after demoulding is cut off, and the rough blanks of aluminum alloy parts are simply cleaned.