A single crystal orientation mold shell base plate leveling device

Abstract

The utility model relates to a single crystal directional formwork bottom disc leveling device, the device includes polishing platform, first polishing carousel, second polishing carousel, clamp assembly, first polishing carousel, second polishing carousel set up in polishing platform, first polishing carousel is used for polishing the skirt edge of single crystal directional formwork, second polishing carousel is used for polishing the formwork bottom disc of single crystal directional formwork, clamp assembly is connected with polishing platform, clamp assembly is used for clamping the gate cup neck position of single crystal directional formwork. Compared with prior art, the utility model is through the mode of formwork clamping suspension by clamp, avoids the unevenness of formwork bottom disc polishing due to the uneven contact surface, selects two carousels, and one carousel is responsible for polishing formwork bottom disc, and the other carousel is responsible for polishing formwork skirt edge position.

Description

Technical Field

[0001] This utility model relates to the field of investment casting technology, and in particular to a leveling device for a single-crystal directional mold base. Background Technology

[0002] In investment casting, single-crystal directional technology is the core process for manufacturing high-performance single-crystal superalloy components. Its core lies in controlling the crystal growth direction through directional solidification, eliminating grain boundaries, and thus significantly improving the material's creep resistance and high-temperature performance. However, during the shell-making process, the slurry application and sand application operations result in an uneven bottom surface of the mold shell. Currently, in the high-temperature alloy investment casting process, the single-crystal directional mold shell is prone to deformation due to its relatively large bottom plane during the processes of bottom wax pressing, mold shell making, dewaxing, and mold shell sintering. During pouring, this bottom deformation causes poor contact between the mold shell and the water-cooled copper plate, leading to alloy leakage, casting failure, and in severe cases, damage to the single-crystal directional pouring furnace.

[0003] Currently, leveling is mainly achieved through manual grinding, but this method lacks consistency and stability.

[0004] Therefore, there is an urgent need for a leveling device for the bottom plane of a single-crystal orientation mold shell to ensure that the contact surface between the bottom of the mold shell and the water-cooled copper plate is flat. Utility Model Content

[0005] The purpose of this utility model is to overcome the defects of the existing technology and provide a single crystal orientation mold base leveling device. By using clamps to clamp and suspend the mold, the unevenness of the mold base caused by uneven contact surfaces is avoided. Two turntables are selected, one turntable is responsible for grinding the mold base and the other turntable is responsible for grinding the "skirt" position of the mold.

[0006] The objective of this utility model can be achieved through the following technical solutions: The purpose of this utility model is to provide a leveling device for the base of a single-crystal directional mold shell. The device includes a grinding platform, a first grinding turntable, a second grinding turntable, and a clamping assembly. The first grinding turntable and the second grinding turntable are disposed on the grinding platform. The first grinding turntable is used to grind the skirt of the single-crystal directional mold shell. The second grinding turntable is used to grind the base of the single-crystal directional mold shell. The clamping assembly is connected to the grinding platform and is used to clamp the neck position of the gating cup of the single-crystal directional mold shell.

[0007] Furthermore, the device also includes a turntable power mechanism; the turntable power mechanism is used to drive the first grinding turntable and the second grinding turntable to rotate.

[0008] Furthermore, the turntable power mechanism includes a motor, a transmission shaft, and a transmission belt; the motor includes a motor body and an output shaft connected to the motor body; the motor body is connected to the grinding platform; the motor output shaft is connected to the transmission belt; the transmission belt is connected to the transmission shaft; the transmission shaft is connected to the grinding platform via bearings; the transmission shaft is connected to the first grinding turntable; and the first grinding turntable is connected to the second grinding turntable.

[0009] Furthermore, the transmission spindle is arranged in a vertical direction.

[0010] Furthermore, the second polishing turntable is a turntable that can be raised for polishing; the second polishing turntable is connected to the first polishing turntable through a lifting power mechanism.

[0011] Furthermore, the lifting power mechanism includes a cylinder; the cylinder includes a cylinder body and a cylinder output shaft connected to the cylinder body; the cylinder body is connected to a first grinding turntable; the cylinder output shaft is connected to a second grinding turntable.

[0012] Furthermore, the first grinding turntable and the second grinding turntable are arranged coaxially.

[0013] Furthermore, the diameter of the first grinding disc is larger than the diameter of the second grinding disc.

[0014] Furthermore, the second polishing turntable is positioned above the first polishing turntable.

[0015] Furthermore, the height of the clamp assembly is higher than the height of the first grinding turntable and the second grinding turntable.

[0016] Furthermore, the device also includes an electric slide rail; the clamp assembly is connected to the grinding platform via the electric slide rail.

[0017] Furthermore, the electric slide rail is arranged in a vertical direction.

[0018] Furthermore, sandpaper is installed on the grinding surface of the first grinding disc; sandpaper is also installed on the grinding surface of the second grinding disc. The installed sandpaper can be sandpaper of different grits.

[0019] Furthermore, the clamp assembly includes a telescopic rod and a retractable clamp connected to the telescopic rod, wherein the retractable clamp is a retractable clamp.

[0020] Furthermore, the electric slide rail includes a track and a slider connected to the track, the slider sliding on the track via an electric slide rail motor; the track of the electric slide rail is connected to the grinding platform; the slider of the electric slide rail is connected to the telescopic rod of the clamp assembly.

[0021] Furthermore, pressure sensors are installed on both the first and second grinding discs to enable automatic grinding upon contact, which also improves the stability of the device.

[0022] Compared with the prior art, the present invention has the following beneficial effects: 1) The single crystal orientation mold base leveling device provided by this technical solution uses clamps to clamp and suspend the mold, which avoids uneven grinding of the mold base due to uneven contact surface. A lifting turntable is selected. The small turntable in the middle (second grinding turntable) is responsible for grinding the mold base, and the large turntable (first grinding turntable) is responsible for grinding the "skirt" position of the mold.

[0023] 2) The single crystal orientation mold base leveling device provided by this technical solution further adopts belt drive for the turntable power mechanism, which makes the rotation of the grinding turntable more stable. At the same time, the belt drive structure is simple, low in cost and high in transmission efficiency, making the grinding process more stable and reliable.

[0024] 3) The single-crystal directional mold base leveling device provided by this technical solution uses machine grinding instead of manual grinding, which is highly efficient and has consistency and stability. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the single-crystal directional mold base leveling device in an embodiment of this utility model.

[0026] Figure 2 This is a schematic diagram of the structure of a single-crystal oriented mold shell.

[0027] Figure 3 This is a schematic diagram of the connection section of the first and second grinding turntables of the top positioning and clamping mechanism of the single crystal orientation mold base leveling device in an embodiment of this utility model.

[0028] Figure 4 This is a partial structural schematic diagram of the single-crystal directional mold base leveling device in an embodiment of this utility model.

[0029] in: 1-Grinding platform; 2-First grinding turntable; 3-Second grinding turntable; 4-Clamp assembly; 5-Electric slide rail; 6-Motor; 7-Drive spindle; 8-Drive belt; 9-Cylinder; 10. Skirt, 11. Mold base, 12. Sprue cup, 1201. Neck of sprue cup. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Component models, material names, connection structures, and other features not explicitly described in this technical solution are considered common technical features disclosed in the prior art.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] It should be noted that in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] The present invention will be further described in detail below with reference to specific embodiments.

[0034] The motors, cylinders, electric slide rails, etc. involved in the following embodiments are all commercially available or purchased parts. This utility model does not improve their structural design or working principle.

[0035] The monocrystalline orientation mold base leveling device is used for grinding and leveling the base of the monocrystalline orientation mold, such as... Figure 2 As shown, the single crystal orientation mold shell includes a pouring cup 12, a mold shell base 11, and a skirt 10, which are arranged sequentially from top to bottom; the pouring cup 12 includes a pouring cup neck 1201.

[0036] Example 1 like Figures 1-4As shown, this embodiment provides a single-crystal directional mold base leveling device, which includes a grinding platform 1, a first grinding turntable 2, a second grinding turntable 3, a clamping assembly 4, and a turntable power mechanism.

[0037] The first grinding turntable 2 and the second grinding turntable 3 are mounted on the grinding platform 1. The first grinding turntable 2 is used to grind the skirt 10 of the single-crystal orientation mold shell; the second grinding turntable 3 is used to grind the mold shell base 11 of the single-crystal orientation mold shell; the clamping assembly 4 is connected to the grinding platform 1. Sandpaper is mounted on the grinding surface of the first grinding turntable 2; sandpaper is mounted on the grinding surface of the second grinding turntable 3. The sandpaper can be sandpaper of different grits. The grinding surface of the first grinding turntable 2 is the upper surface of the first grinding turntable 2, and the grinding surface of the second grinding turntable 3 is the upper surface of the second grinding turntable 3.

[0038] The clamping assembly 4 is used to clamp the neck 1201 of the gating cup 12 of the single crystal orientation mold shell, and is a positioning and clamping assembly of the device.

[0039] The turntable power mechanism is used to drive the first grinding turntable 2 and the second grinding turntable 3 to rotate.

[0040] The turntable power mechanism includes a motor 6, a transmission shaft 7, and a transmission belt 8; the motor 6 includes a motor body and an output shaft connected to the motor body; the motor body is fixedly connected to the grinding platform 1; the output shaft of the motor 6 is connected to the transmission belt 8 via a pulley; the transmission belt 8 is connected to the transmission shaft 7 via a pulley; the transmission shaft 7 is connected to the grinding platform 1 via a bearing; the transmission shaft 7 is fixedly connected to the first grinding turntable 2; and the second grinding turntable 3 is connected to the first grinding turntable 2.

[0041] During operation, the motor 6 transmits power to the transmission spindle 7 through the transmission belt 8, which drives the first grinding turntable 2 to rotate, and drives the second grinding turntable 3 to rotate.

[0042] The transmission main shaft 7 is arranged in the vertical direction.

[0043] The second polishing turntable 3 is a turntable that can be raised for polishing; the second polishing turntable 3 is connected to the first polishing turntable 2 through a lifting power mechanism.

[0044] The lifting power mechanism includes a cylinder 9; the cylinder 9 includes a body and an output shaft connected to the body; the body of the cylinder 9 is fixedly connected to the first grinding turntable 2; the output shaft of the cylinder 9 is fixedly connected to the second grinding turntable 3.

[0045] The first grinding turntable 2 and the second grinding turntable 3 are coaxially arranged.

[0046] The diameter of the first grinding turntable 2 is larger than the diameter of the second grinding turntable 3.

[0047] The second polishing turntable 3 is positioned above the first polishing turntable 2.

[0048] The first grinding turntable 2 and the second grinding turntable 3 are set horizontally.

[0049] The height of the clamp assembly 4 is higher than the height of the first grinding turntable 2 and the second grinding turntable 3.

[0050] The device also includes an electric slide rail 5; the clamp assembly 4 is connected to the grinding platform 1 via the electric slide rail 5.

[0051] The electric slide rail 5 is arranged vertically. After the mold shell is positioned and locked, the electric slide rail 5 can raise the height of the mold shell so that the mold shell is higher than the first grinding turntable 2 and the second grinding turntable 3.

[0052] The clamp assembly 4 includes a telescopic rod and a retractable clamp connected to the telescopic rod, wherein the retractable clamp is a retractable clamp.

[0053] The electric slide rail 5 includes a track and a slider connected to the track. The slider slides on the track via an electric slide rail motor. The track of the electric slide rail 5 is fixedly connected to the grinding platform 1. The slider of the electric slide rail 5 is fixedly connected to the telescopic rod of the clamp assembly 4.

[0054] The working method of the single-crystal directional mold base leveling device includes the following steps: Before performing the polishing operation, it should be ensured that the single crystal orientation mold base leveling device is placed stably (the specific means of confirming the stability of the device is not an improvement of this utility model, and those skilled in the art are capable of doing so). After confirming that everything is correct, place the monocrystalline orientation mold shell on the first grinding turntable 2, ensuring that the bottom of the mold shell is fully in contact with the first grinding turntable 2. After the shrink clamp of the clamp assembly 4 determines that the mold shell to be ground is in a relatively central position, the shrink clamp surrounds the neck 1201 of the gating cup 12 of the mold shell (the size of the shrink clamp can be adjusted according to the size of the gating cup 12 of the mold shell, or a shrink clamp of the corresponding size can be replaced). After the mold shell is positioned and fully clamped, the motor 6 transmits power to the transmission spindle 7 through the transmission belt 8, which drives the first grinding turntable 2 and the second grinding turntable 3 to rotate. The initial speed of the turntable is 400 r / min. Since the turntable first grinds the skirt 10 of the single crystal orientation mold shell, this area is relatively thin, but the levelness requirement is relatively low. Therefore, sandpaper with a smaller grit and a relatively higher speed can be selected. The first grinding turntable 2 grinds the skirt 10.

[0055] After grinding the skirt 10, the mold shell is raised by the electric slide rail 5 while the turntable speed is reduced to 300 r / min (the mold shell base 11 of the monocrystalline orientation mold shell has high requirements for levelness, so a lower speed and higher grit sandpaper are used for fine grinding). The height of the second grinding turntable 3 is raised (this height can be determined according to the distance from the bottom of the skirt 10 to the plane of the mold shell base 11). When the second grinding turntable 3 contacts the mold shell base 11 of the monocrystalline orientation mold shell, the grinding operation begins. When the mold shell no longer contacts the second grinding turntable 3 at this height, the grinding is finished. Finally, a spirit level is used to check the levelness of the mold base 11.

[0056] Example 2 like Figures 1-4 As shown, this embodiment provides a leveling device for a single-crystal oriented mold base, which, based on embodiment 1, further includes the following features: Pressure sensors are installed on both the first grinding turntable 2 and the second grinding turntable 3 to achieve automatic contact grinding (grinding begins when the pressure sensed by the pressure sensor is not 0), which also improves the stability of the device.

[0057] The single-crystal directional mold base leveling device also includes a controller. The controller is connected to the pressure sensor via wired or wireless means, to the electric slide rail motor of the electric slide rail 5 via wired or wireless means, to the motor 6 via wired or wireless means, and to the cylinder 9 via wired or wireless means. The controller can acquire signals from the pressure sensor and can control the electric slide rail motor of the electric slide rail 5, the motor 6, and the cylinder 9.

[0058] The controller can be a mainstream microcontroller or a processor based on x86, ARM, or RISC-V architecture. Communication can be wired or wireless.

[0059] Example 3 This embodiment provides a leveling device for the base of a single-crystal oriented mold shell, which, based on Embodiment 1 or Embodiment 2, further includes the following configuration: The grinding platform 1 includes a first platform and a second platform. The second platform is located on the side of the first platform. The first grinding turntable 2 and the second grinding turntable 3 are located above the first platform. The first platform serves as a housing for the motor 6 and the transmission belt 8. The electric slide rail 5 is connected to the second platform. The structure of the first platform is as follows: Figure 4 As shown.

[0060] The dimensions of the first platform are 1000mm*1000mm*600mm.

[0061] The first grinding turntable 2 and the second grinding turntable 3 are large in size and can be set according to the size of the monocrystalline orientation mold shell, and can be used for a wide variety of products.

[0062] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A leveling device for a single-crystal oriented mold base, characterized in that, The device includes a grinding platform (1), a first grinding turntable (2), a second grinding turntable (3), and a clamp assembly (4). The first grinding turntable (2) and the second grinding turntable (3) are set on the grinding platform (1); The first grinding turntable (2) is used to grind the skirt edge of the single crystal orientation mold shell; The second grinding turntable (3) is used to grind the base of the single crystal orientation mold shell; The clamp assembly (4) is connected to the grinding platform (1); The clamp assembly (4) is used to clamp the neck of the gating cup of the single crystal orientation mold shell.

2. The single-crystal directional mold base leveling device according to claim 1, characterized in that, The device also includes a turntable power mechanism; The turntable power mechanism is used to drive the first grinding turntable (2) and the second grinding turntable (3) to rotate.

3. The single-crystal directional mold base leveling device according to claim 2, characterized in that, The turntable power mechanism includes a motor (6), a transmission shaft (7), and a transmission belt (8). The motor (6) includes a main body of the motor (6) and an output shaft of the motor (6) connected to the main body of the motor (6); The main body of the motor (6) is connected to the grinding platform (1); The output shaft of the motor (6) is connected to the transmission belt (8); The transmission belt (8) is connected to the transmission main shaft (7); The transmission spindle (7) is connected to the first grinding turntable (2); The first grinding turntable (2) is connected to the second grinding turntable (3).

4. The single-crystal directional mold base leveling device according to claim 1, characterized in that, The second polishing turntable (3) is a turntable that can be raised for polishing; The second grinding turntable (3) is connected to the first grinding turntable (2) through a lifting power mechanism.

5. The single-crystal directional mold base leveling device according to claim 4, characterized in that, The lifting power mechanism includes a cylinder (9); The cylinder (9) includes a body of the cylinder (9) and an output shaft of the cylinder (9) connected to the body of the cylinder (9); The main body of the cylinder (9) is connected to the first grinding turntable (2); The output shaft of the cylinder (9) is connected to the second grinding turntable (3).

6. The single-crystal directional mold base leveling device according to claim 1, characterized in that, The first grinding turntable (2) and the second grinding turntable (3) are coaxially arranged; The diameter of the first grinding turntable (2) is larger than the diameter of the second grinding turntable (3); The second polishing turntable (3) is located above the first polishing turntable (2).

7. The single-crystal directional mold base leveling device according to claim 1, characterized in that, The device also includes an electric slide rail (5); The clamp assembly (4) is connected to the grinding platform (1) via an electric slide rail (5).

8. The single-crystal directional mold base leveling device according to claim 7, characterized in that, The electric slide rail (5) is set in the vertical direction.

9. The single-crystal directional mold base leveling device according to claim 1, characterized in that, Sandpaper is installed on the grinding surface of the first grinding turntable (2); Sandpaper is installed on the grinding surface of the second grinding turntable (3).

10. A leveling device for a single-crystal oriented mold base according to claim 1, characterized in that, The clamp assembly (4) includes a telescopic rod and a retractable clamp connected to the telescopic rod.

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