Machine tool base chill mounting structure
Patent Information
- Application Number
- CN202522066974.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-25
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-09-25
AI Technical Summary
[0002]目前，树脂砂3D打印增材技术在铸造领域应用广泛，无模化快速制造的生产方式可有效缩短制造工期；如图6所示，对于需要冷铁激冷的铸件，3D打印砂型需要提前设计预留冷铁槽，将冷铁放入冷铁槽内，再将周围缝隙填充树脂砂，通过粘接的方式固定冷铁，该种固定方式的冷铁容易脱落，造成3D砂型的强度较低
1、本实用新型的安装板的容纳腔与冷铁一一对应，在将冷铁装配于容纳腔内的过程中，旋转腔内的旋转片先与冷铁上的滑槽再与冷铁上的安装槽配合，最终使旋转片上的第一面和第二面分别与卡接槽内壁面抵接，将冷铁与安装板相对固定连接，在将安装板与冷铁脱离时，仅需使安装板相对于冷铁在从第一端到第二端的方向移动，第二面与卡接槽内壁面配合，使旋转片转动至第二位置，然后即可将安装板与冷铁分离，安装板与冷铁之间的连接与脱离均方便快捷，再与砂箱配合能够将大量冷铁批量准确地安装至预定位置，并且，冷铁的安装与砂型的3D打印可以同步进行，缩短了制造周期，提高了生产效率，降低了劳动强度和人工成本。
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Figure CN224795108U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sand casting technology, specifically to a machine tool base chill mounting structure. Background Technology
[0002] Currently, resin sand 3D printing additive manufacturing technology is widely used in the casting industry, and the moldless rapid manufacturing method can effectively shorten the manufacturing cycle; for example... Figure 6 As shown, for castings that require chills, 3D printed sand molds need to be designed with pre-reserved chill slots. The chills are placed in the chill slots, and the surrounding gaps are filled with resin sand. The chills are then fixed by bonding. However, the chills in this fixing method are prone to falling off, resulting in low strength of the 3D sand mold.
[0003] like Figure 7 As shown, the machine tool base, as a large casting, has a complex cavity structure and uneven heat dissipation conditions, requiring large-area chills for rapid cooling. Therefore, chills need to be placed at the intersections of cavity wall thicknesses to achieve first cooling of the thicker parts and avoid shrinkage defects. Due to the excessive number of chills used, the process of embedding chills after 3D printing the sand mold is too complicated. Furthermore, the 3D printing time is increased in order to install chill grooves on the 3D printed sand mold.
[0004] Therefore, developing a machine tool base chill mounting structure that can accurately install a large number of chills in predetermined positions within the sand box, allowing the installation of chills to be carried out simultaneously with the 3D printing of the sand mold, shortening the manufacturing cycle, improving production efficiency, and reducing labor intensity and labor costs, is an urgent problem to be solved at this stage. Summary of the Invention
[0005] To address the problems existing in the prior art, this utility model provides a machine tool base chill mounting structure. The receiving cavity of the mounting plate corresponds one-to-one with the chill. When the chill is assembled into the receiving cavity, the rotating plate in the rotating cavity cooperates with the sliding groove and mounting groove on the chill, which can conveniently and quickly achieve a relatively fixed connection and rapid separation between the chill and the mounting plate. When used with a sand box, a large number of chills can be accurately installed in predetermined positions in batches. Furthermore, the installation of the chill and the 3D printing of the sand mold can be carried out simultaneously, shortening the manufacturing cycle, improving production efficiency, and reducing labor intensity and labor costs.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a machine tool base chill mounting structure, including: The mounting plate has several through-holes, each containing a rotating cavity on its inner wall. A rotating plate is located within each rotating cavity, and the rotating plate has a first surface and a second surface. The rotating plate is rotatable between a first position and a second position. In the first position, a portion of the first surface and a portion of the second surface extend into the receiving cavity. Along a direction away from the rotating cavity, the first surface is inclined downwards, and the second surface is inclined upwards. In the second position, the rotating plate is entirely located within the rotating cavity. When the rotating plate is not in the second position, it tends to rotate towards the first position. The chill corresponds one-to-one with the receiving cavity. The chill has a first end and a second end that are arranged opposite to each other. A snap-fit groove is provided on the outer wall of the chill between the first end and the second end. A sliding groove is provided between the snap-fit groove and the first end. The shapes of the snap-fit groove and the sliding groove are matched with the shape of the rotating piece. The depth of the snap-fit groove is greater than the depth of the sliding groove. When the rotating piece is embedded in the snap-fit groove, the rotating piece is located in the first position, and both the first surface and the second surface abut against the inner wall surface of the snap-fit groove.
[0007] As a preferred technical solution, it also includes a sand box, which includes an upper sand box and a lower sand box. The lower sand box is provided with a plurality of limiting grooves, and the mounting plate is provided with limiting blocks that match the limiting grooves.
[0008] As a preferred technical solution, after the chill is placed in the lower sand box, the lower sand box is filled with coated sand, and the initial thickness of the coated sand on the top surface of the chill is set to 1-6mm. And / or, a sand-isolating layer is provided between the chill and the casting in the sand box; And / or, the sand box contains a sand mold, which is 3D printed.
[0009] As a preferred technical solution, the rotating cavity is provided with an elastic element, which applies an elastic force to the rotating plate.
[0010] As a preferred technical solution, the rotating cavity is provided with a mounting groove, one end of the elastic element is fixed in the mounting groove, and the other end of the elastic element abuts against the rotating plate; And / or, the elastic element is a spring, and the spring has a top bead at one end near the rotating plate; And / or, when the rotating plate is in the second position, the rotating plate is in a static equilibrium state.
[0011] As a preferred technical solution, the rotating cavity is provided with a rotating shaft, the rotating plate is sleeved on the rotating shaft, and the rotating plate can rotate about the rotating shaft as the axis.
[0012] As a preferred technical solution, the first surface is a cylindrical surface, and the central axis of the cylindrical surface is the axis of the rotation shaft; the inner wall surface of the rotating cavity corresponding to the first surface is in clearance fit with the first surface.
[0013] As a preferred technical solution, the rotating cavity is provided with a limiting surface, and when the rotating plate is in the first position, the limiting surface abuts against the second surface.
[0014] As a preferred technical solution, when the rotating plate is located in the first position, the angle between the first surface and the horizontal plane is smaller than the angle between the second surface and the horizontal plane; And / or, when the rotating plate is in the first position, the length of the first surface extending into the receiving cavity is 1 / 8 to 1 / 5 of the total length of the first surface.
[0015] As a preferred technical solution, the mounting plate is made of foam plastic or wood.
[0016] The beneficial effects of this utility model are as follows: 1. The mounting plate of this utility model has a corresponding receiving cavity for each chill. During the assembly of the chill into the receiving cavity, the rotating plate in the rotating cavity first engages with the sliding groove on the chill and then with the mounting groove on the chill. Finally, the first and second surfaces of the rotating plate abut against the inner wall of the snap-fit groove, fixing the chill and the mounting plate relatively and fixedly connected. When separating the mounting plate from the chill, it is only necessary to move the mounting plate relative to the chill in the direction from the first end to the second end. The second surface engages with the inner wall of the snap-fit groove, causing the rotating plate to rotate to the second position. Then the mounting plate and the chill can be separated. The connection and separation between the mounting plate and the chill are convenient and quick. When used with a sand box, a large number of chills can be accurately installed in predetermined positions. Furthermore, the installation of the chills and the 3D printing of the sand mold can be carried out simultaneously, shortening the manufacturing cycle, improving production efficiency, and reducing labor intensity and labor costs.
[0017] 2. The elastic element set in the rotating cavity of this utility model can apply elastic force to the rotating plate, which not only allows the rotating plate to rotate to the first position more quickly when it is not in the second position, but also allows the rotating plate to achieve force balance and remain stationary when it is in the second position.
[0018] 3. The mounting plate of this utility model is made of foam plastic or wood, which can be quickly molded and can be quickly processed into receiving cavity and rotating cavity, making it lightweight and inexpensive. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the machine tool base chill mounting structure of this utility model; Figure 2 This is a schematic diagram of the structure of the mounting plate and the chill when the rotating plate of this utility model is in the first position; Figure 3 This is a schematic diagram of the structure of the mounting plate and the chill when the rotating plate of this utility model is located between the first position and the second position; Figure 4 This is a schematic diagram of the structure of the mounting plate and the chill when the rotating plate of this utility model is in the second position; Figure 5 This is a schematic diagram of the 3D printed sand mold structure inside the sand box of this utility model; Figure 6 A schematic diagram of a 3D-printed sand mold for reserving a chilled iron trough; Figure 7 This is a schematic diagram of the distribution of chills during the casting of a machine tool base.
[0020] In the diagram: 1-Mounting plate, 11-Receiving cavity, 12-Rotating cavity, 13-Limiting block, 14-Mounting groove, 15-Rotating shaft, 16-Limiting surface, 2-Rotating plate, 21-First surface, 22-Second surface, 3-Chilling iron, 31-First end, 32-Second end, 33-Snap-fit groove, 34-Sliding groove, 4-Sand barrier layer, 5-Elastic element, 51-Top ball, 61-Upper sand mold, 62-Lower sand mold, 7-Machine tool base. Detailed Implementation
[0021] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0022] Please refer to Figures 1-5 This is a first embodiment of a machine tool base chill mounting structure provided by the present utility model, including a mounting plate 1 and multiple chills 3. The mounting plate 1 is provided with a plurality of through-hole receiving cavities 11. The plurality of receiving cavities 11 are arranged in a regular array. The chills 3 correspond one-to-one with the receiving cavities 11. The chills 3 have a first end 31 and a second end 32 that are arranged opposite to each other. The chills 3 can be placed in the receiving cavity 11 along the direction from the first end 31 to the second end 32. A rotating cavity 12 is provided on the inner wall of the receiving cavity 11. A rotating plate 2 is provided inside the rotating cavity 12. The rotating plate 2 has a first surface 21 and a second surface 22. The rotating plate 2 can rotate between a first position and a second position. Correspondingly, a snap-fit groove 33 is provided on the outer wall of the chill 3 located between the first end 31 and the second end 32. A sliding groove 34 connects the snap-fit groove 33 and the first end 31. The shapes of both the snap-fit groove 33 and the sliding groove 34 match the shape of the rotating plate 2, and the depth of the snap-fit groove 33 is greater than the depth of the sliding groove 34. Figure 2As shown, in the first position, the rotating plate 2 is embedded in the locking groove 33, with part of the first surface 21 and part of the second surface 22 extending into the receiving cavity 11. Along the direction away from the rotating cavity 12, the first surface 21 is inclined downwards, and the second surface 22 is inclined upwards. Both the first surface 21 and the second surface 22 abut against the inner wall of the locking groove 33. The first surface 21 and the second surface 22, in cooperation with the locking groove 33, can fix the chill 3 within the receiving cavity 11. Figure 4 As shown, in the second position, the rotating plate 2 is entirely located within the rotating cavity 12, allowing the chill 3 to easily detach from the mounting plate 1. Furthermore, when the rotating plate 2 is not in the second position, it tends to rotate towards the first position. When the chill 3 is installed into the receiving cavity 11, i.e., during the process of placing the chill 3 into the receiving cavity 11 along the direction from the first end 31 to the second end 32, the rotating plate 2 is always embedded in the sliding groove 34 of the chill 3. When the locking groove 33 moves to the position of the rotating plate 2, the rotating plate 2 can automatically embed itself into the locking groove 33. When the chill 3 is detached from the receiving cavity 11, as... Figure 5 As shown, the mounting plate 1 is moved relative to the chills 3 in the direction from the first end 31 to the second end 32, and the second surface 22 engages with the inner wall of the snap-fit groove 33, so that the rotating piece 2 rotates to the second position. Then the mounting plate 1 is moved relative to the chills 3 in the direction from the second end 32 to the first end 31, so that the mounting plate 1 can be easily and synchronously separated from all the chills 3.
[0023] Specifically, the mounting plate 1 is preferably made of foam plastic or wood, which can be quickly molded and can quickly process the receiving cavity 11 and the rotating cavity 12, making it lightweight and inexpensive.
[0024] It should be noted that this utility model should also include a sand box, which includes an upper sand box and a lower sand box. During the casting process, the chills 3 are located in the lower sand box. Therefore, the lower sand box is provided with several limiting grooves, and the mounting plate 1 is provided with limiting blocks 13 that match the limiting grooves. When the mounting plate 1 is placed in the lower sand box, the limiting grooves and limiting blocks 13 cooperate to accurately limit the position of the mounting plate 1, thereby ensuring that the position of a large number of chills 3 fixed on the mounting plate 1 is accurate. Furthermore, the mounting plate 1 can place all the chills 3 in the preset position in the lower sand box at one time.
[0025] Furthermore, after the chill 3 is placed in the lower sand box, the lower sand box is filled with coated sand. The initial thickness of the coated sand on the top surface of the chill 3 is set to 1-6mm to facilitate the rapid transfer of heat to the chill 3 during casting.
[0026] Furthermore, please refer to Figure 7 A sand-isolating layer 4 should also be provided between the chill 3 and the casting (machine tool base 7) in the sand box. The sand-isolating layer 4 is used to prevent sand from sticking, improve the surface finish of the machine tool base 7, and control the cooling rate.
[0027] Specifically, please refer to Figure 5 The sand box contains a sand mold, which includes an upper sand mold 61 and a lower sand mold 62. The upper sand mold 61 and the lower sand mold 62 together form a cavity in the shape of the machine tool base 7. Both the upper sand mold 61 and the lower sand mold 62 are 3D printed.
[0028] In this embodiment, please refer to Figures 2-4 The rotating cavity 12 is provided with an elastic element 5. The elastic element 5 applies an elastic force to the rotating plate 2, which not only promotes the rotating plate 2 to rotate more quickly to the first position when it is not in the second position, but also enables the rotating plate 2 to achieve force balance and remain stationary when it is in the second position.
[0029] Specifically, please refer to Figures 2-4 The rotating cavity 12 is provided with a mounting groove 14. One end of the elastic element 5 is fixed in the mounting groove 14, and the other end of the elastic element 5 abuts against the rotating plate 2. The elastic element 5 can be positioned through the mounting groove 14.
[0030] Further, please refer to Figures 2-4 The elastic element 5 is preferably a spring, and a top bead 51 is provided at one end of the spring near the rotating plate 2. The top bead 51 can reduce the friction between the spring and the rotating plate 2, ensuring that the rotating plate 2 rotates smoothly.
[0031] It should be noted that, referring to 4, when the rotating plate 2 is in the second position, the rotating plate 2 should be in a static equilibrium state, that is, when the rotating plate 2 is not subjected to external force, it can remain stationary in the second position to ensure that the mounting plate 1 and the chill 3 can be smoothly separated. When the chill 3 is installed into the receiving cavity 11, the rotating plate 2 needs to be pulled out in advance so that the rotating plate 2 is not in the second position.
[0032] In this embodiment, please refer to Figures 2-4 The rotating cavity 12 is provided with a rotating shaft 15, and the rotating plate 2 is sleeved on the rotating shaft 15. The rotating plate 2 can rotate around the rotating shaft 15 as the axis.
[0033] Further, please refer to Figures 2-4 The first surface 21 is preferably a cylindrical surface, and the central axis of the cylindrical surface is set as the axis of the rotation shaft 15; the inner wall surface of the rotating cavity 12 corresponding to the first surface 21 is in clearance fit with the first surface 21, which ensures the smooth rotation of the rotating piece 2 and also has a certain limiting effect on the rotating piece 2.
[0034] Please refer to the following for clarification: Figure 2 The rotating cavity 12 is provided with a limiting surface 16. When the rotating plate 2 is in the first position, the limiting surface 16 abuts against the second surface 22. Under the support of the limiting surface 16, the rotating plate 2 can be stably maintained in the first position, so that the chill 3 can be fixed on the mounting plate 1.
[0035] In practical use, please refer to Figure 2 When the rotating plate 2 is in the first position, the angle α between the first surface 21 and the horizontal plane should be smaller than the angle β between the second surface 22 and the horizontal plane. Under the action of the gravity of the chill 3, the rotating plate 2 always has a clockwise rotation tendency, which can ensure the relative fixation of the chill 3 and the mounting plate 1.
[0036] Specifically, please refer to Figure 2 When the rotating plate 2 is in the first position, the length of the first surface 21 extending into the receiving cavity 11 is 1 / 8 to 1 / 5 of the total length of the first surface 21, ensuring that the chill 3 and the rotating plate 2 have sufficient contact area.
[0037] Please refer to Figures 1-5 The specific usage of this utility model is as follows: Relative fixation of chill 3 and mounting plate 1: The rotating plate 2 in the rotating cavity 12 is in the first position. The chill 3 is fed into the receiving cavity 11 along the direction from the first end 31 to the second end 32 until the rotating plate 2 is embedded in the snap-fit groove 33, and the chill 3 is fixed in the mounting plate 1. Separating Mounting Plate 1 from Chill Iron 3: Place Mounting Plate 1 and Chill Iron 3 in the lower sand box, with the second end 32 of Chill Iron 3 positioned below the first end 31. Move Mounting Plate 1 relative to Chill Iron 3 in the direction from the first end 31 to the second end 32 (i.e., downward). The second surface 22 engages with the inner wall of the snap-fit groove 33, causing the rotating plate 2 to rotate to the second position. Then move Mounting Plate 1 relative to Chill Iron 3 in the direction from the second end 32 to the first end 31 (i.e., upward). After Mounting Plate 1 and all Chill Iron 3 are separated synchronously, they can be removed from the lower sand box. This allows the Chill Iron 3 to be placed in batches at the bottom of the lower sand box and arranged in a preset position. It should be noted that during the process of installing the chill 3 on the mounting plate 1 and placing the chill 3 into the lower sand box through the mounting plate 1, the upper sand mold 61 and the lower sand mold 62 can be 3D printed simultaneously. After the chill 3 is placed into the lower sand box, it is filled with coated sand. Then, the upper sand mold 61 and the lower sand mold 62 are placed into the upper sand box and the lower sand box respectively. After assembling the upper sand box and the lower sand box, molten iron can be poured.
[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A machine tool base chill mounting structure, characterized in that, include: Mounting plate (1), the mounting plate (1) is provided with a plurality of through receiving cavities (11), the inner wall of the receiving cavity (11) is provided with a rotating cavity (12), the rotating cavity (12) is provided with a rotating plate (2), the rotating plate (2) has a first surface (21) and a second surface (22), the rotating plate (2) can rotate between a first position and a second position. In the first position, part of the first surface (21) and part of the second surface (22) extend into the receiving cavity (11). Along the direction away from the rotating cavity (12), the first surface (21) is inclined downward and the second surface (22) is inclined upward. In the second position, the rotating plate (2) is completely located in the rotating cavity (12). When the rotating plate (2) is not in the second position, the rotating plate (2) has a tendency to rotate towards the first position. The chill (3) corresponds one-to-one with the receiving cavity (11). The chill (3) has a first end (31) and a second end (32) arranged opposite to each other. The chill (3) has a snap-fit groove (33) on its outer wall between the first end (31) and the second end (32). The snap-fit groove (33) is connected to the first end (31) by a sliding groove (34). The shapes of the snap-fit groove (33) and the sliding groove (34) are matched with the shape of the rotating piece (2). The depth of the snap-fit groove (33) is greater than the depth of the sliding groove (34). When the rotating piece (2) is embedded in the snap-fit groove (33), the rotating piece (2) is located in the first position. The first surface (21) and the second surface (22) are both in contact with the inner wall surface of the snap-fit groove (33).
2. The machine tool base chill mounting structure according to claim 1, characterized in that, It also includes a sand box, which includes an upper sand box and a lower sand box. The lower sand box is provided with several limiting grooves, and the mounting plate (1) is provided with a limiting block (13) that matches the limiting grooves.
3. The machine tool base chill mounting structure according to claim 2, characterized in that, After the chill (3) is placed in the lower sand box, the lower sand box is filled with coated sand, and the initial thickness of the coated sand on the top surface of the chill (3) is set to 1-6 mm. And / or, a sand-isolating layer (4) is provided between the chill (3) and the casting in the sand box. And / or, the sand box contains a sand mold, which is 3D printed.
4. The machine tool base chill mounting structure according to claim 1, characterized in that, The rotating cavity (12) is provided with an elastic element (5), which applies an elastic force to the rotating plate (2).
5. The machine tool base chill mounting structure according to claim 4, characterized in that, The rotating cavity (12) is provided with an installation groove (14), one end of the elastic element (5) is fixed in the installation groove (14), and the other end of the elastic element (5) abuts against the rotating plate (2); And / or, the elastic element (5) is a spring, and the spring has a top bead (51) at one end near the rotating plate (2); And / or, when the rotating plate (2) is in the second position, the rotating plate (2) is in a static equilibrium state.
6. A machine tool base chill mounting structure according to claim 1 or 4, characterized in that, The rotating cavity (12) is provided with a rotating shaft (15), and the rotating plate (2) is sleeved on the rotating shaft (15). The rotating plate (2) can rotate around the rotating shaft (15) as the axis.
7. The machine tool base chill mounting structure according to claim 6, characterized in that, The first surface (21) is set as a cylindrical surface, and the central axis of the cylindrical surface is set as the axis of the rotating shaft (15); the inner wall surface of the rotating cavity (12) corresponding to the first surface (21) is in clearance fit with the first surface (21).
8. The machine tool base chill mounting structure according to claim 1, characterized in that, The rotating cavity (12) is provided with a limiting surface (16). When the rotating plate (2) is in the first position, the limiting surface (16) abuts against the second surface (22).
9. The machine tool base chill mounting structure according to claim 1, characterized in that, When the rotating plate (2) is in the first position, the angle between the first surface (21) and the horizontal plane is smaller than the angle between the second surface (22) and the horizontal plane; And / or, when the rotating plate (2) is in the first position, the length of the first surface (21) extending into the receiving cavity (11) is 1 / 8 to 1 / 5 of the total length of the first surface (21).
10. The machine tool base chill mounting structure according to claim 1, characterized in that, The mounting plate (1) is made of foam plastic or wood.