Clamping device of quartz crucible

Abstract

The utility model relates to the technical field of quartz crucible production, and particularly discloses a quartz crucible clamping device which comprises a base, and a clamping mechanism is arranged at the top of the base. The clamping mechanism comprises a placing plate and a rotating plate arranged below the placing plate, sliding holes with openings facing corners are formed in the four diagonal lines of the top of the placing plate, sliding blocks with I-shaped sections are slidably connected to the interiors of all the sliding holes, L-shaped connecting rods are rotatably connected to the bottoms of all the sliding blocks through rotating shafts, and the L-shaped connecting rods are rotatably connected to the bottoms of all the sliding blocks through rotating shafts. The other end of the L-shaped connecting rod is rotationally connected with the edge of the rotating plate through a rotating shaft; clamping plates are fixedly mounted at the ends, close to the center of the placing plate, of the upper end faces of all the sliding blocks, and film pressure sensors are fixedly mounted on the sides, close to the center of the placing plate, of the clamping plates, so that the quartz crucible can be efficiently centered and clamped; and the clamping force can be accurately controlled, manual intervention is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of quartz crucible production technology, and specifically discloses a clamping device for quartz crucibles. Background Technology

[0002] In the field of quartz crucible manufacturing, clamping devices are considered core equipment for ensuring smooth production processes and meeting product quality standards. As a key consumable in high-end industries such as monocrystalline silicon production, quartz crucibles require meticulous manufacturing processes and stringent precision control at every stage of production. During the production process, the quartz crucible needs to be secured in many places to facilitate subsequent processing steps, such as grinding the edges and corners.

[0003] Chinese Patent Publication No. CN211367398U discloses a clamping device for quartz crucible production, comprising a support box, a base plate fixedly connected to the bottom of the support box, a sliding groove formed on the top of the base plate, a sliding rod movably connected to the top of the support box, a connecting rod fixedly connected to the outer wall of the sliding rod, a fixing hoop fixedly connected to one end of the connecting rod, a protective pad fixedly connected to the inner wall of the fixing hoop, a quartz crucible body movably connected to the outer wall of the protective pad, a first connecting block fixedly connected to the bottom of the sliding rod, a threaded block fixedly connected to the bottom of the first connecting block, and a second connecting block fixedly connected to the bottom of the threaded block. This clamping device for quartz crucible production achieves a good clamping effect, enabling a tighter clamping of the quartz crucible body, thus facilitating subsequent production and processing work and simplifying its use.

[0004] In actual use, the above-mentioned device requires tedious manual operation to adjust the clamping force each time, which is inefficient. It also lacks the function of clamping force monitoring and relies entirely on manual operation. When clamping the quartz crucible, it is easy to over-pressure and damage the quartz crucible, making it inconvenient to use. Therefore, it needs to be improved. Utility Model Content

[0005] This invention proposes a clamping device for quartz crucibles, which can efficiently center and clamp quartz crucibles; and can achieve precise control of clamping force, reduce manual intervention, and improve work efficiency.

[0006] This utility model is implemented as follows: a clamping device for a quartz crucible includes a base, and a clamping mechanism is provided on the top of the base; the clamping mechanism includes a placement plate and a rotating plate disposed below the placement plate. Each of the four diagonal openings of the placement plate has a sliding hole facing the corner. All the sliding holes are slidably connected to a slider with an I-shaped cross-section. The bottom of each slider is rotatably connected to an L-shaped connecting rod via a rotating shaft. The other end of the L-shaped connecting rod is rotatably connected to the edge of the rotating plate via the rotating shaft. A clamping plate is fixedly installed on the upper end face of each slider near the center of the placement plate. A thin-film pressure sensor is fixedly installed on the side of the clamping plate near the center of the placement plate, and a buffer pad is fixedly installed on the other side of the thin-film pressure sensor.

[0007] As a preferred clamping device for a quartz crucible according to the present invention, the bottom of the placement plate is provided with two symmetrically distributed support plates, one of which is fixedly installed at the bottom of the placement plate, and the other is fixedly installed at the bottom of the corresponding slider. Two electric push rods are installed between the tops of the two support plates.

[0008] As a preferred clamping device for a quartz crucible according to this utility model, a fixed shaft is fixedly installed at the center of the bottom of the placement plate, and the other end of the fixed shaft passes through the rotating plate and is rotatably connected to the rotating plate through a bearing.

[0009] Preferably, the rotating plate of the quartz crucible clamping device of this utility model is square.

[0010] As a preferred clamping device for a quartz crucible according to this utility model, the buffer pad is made of high-temperature resistant silicone or ceramic fiber pad.

[0011] As a preferred clamping device for a quartz crucible according to this utility model, a plurality of support legs are fixedly installed between the bottom of the placement plate and the top of the base.

[0012] As a preferred clamping device for a quartz crucible according to this utility model, a PLC touch screen all-in-one machine is fixedly installed on the upper end surface of the base. The PLC touch screen all-in-one machine is electrically connected to an electric push rod and a thin film pressure sensor for controlling the clamping force and adjusting the clamping position.

[0013] The beneficial effects of this utility model are:

[0014] 1. By operating two electric actuators simultaneously and utilizing the coordinated action of the slider, connecting rod, rotating plate, and linkage mechanism, the linear motion of the electric actuators is cleverly converted into the linear sliding of the slider, the rotational motion of the rotating plate, and the synchronous radial motion of the clamping plate. This allows for the rapid and synchronized movement of the four clamping plates toward the center of the placement plate, enabling efficient centering and clamping of the quartz crucible.

[0015] 2. The clamping force is monitored in real time by a thin-film pressure sensor. The PLC touch screen all-in-one machine receives the sensor signal and automatically adjusts the electric push rod stroke, which can achieve precise control of the clamping force. This avoids damage to the quartz crucible due to excessive clamping force and also prevents instability of the quartz crucible due to insufficient clamping force. This ensures the safety and stability of the quartz crucible during processing or transportation, reduces manual intervention, and improves work efficiency. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is an overall structural diagram of a clamping device for a quartz crucible according to the present invention.

[0018] Figure 2 This is a bottom view of the clamping mechanism of this utility model;

[0019] Figure 3 This is a partial bottom view of the clamping mechanism of this utility model;

[0020] Figure 4 This is a structural diagram of the clamping plate of this utility model;

[0021] Figure 5 This is a structural diagram of the slider of this utility model;

[0022] Figure 6 This utility model Figure 2 Structural diagram of the central support plate.

[0023] The markings in the diagram are: 1. Base; 2. Placement plate; 201. Support leg; 3. Sliding hole; 301. Slider; 302. Connecting rod; 4. Rotating plate; 5. Fixed shaft; 6. Support plate; 7. Electric actuator; 8. Clamping plate; 801. Thin-film pressure sensor; 802. Buffer pad; 9. PLC touch screen all-in-one machine. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0025] Please see Figure 1-6A clamping device for a quartz crucible includes a base 1, with a clamping mechanism on the top of the base 1. The clamping mechanism includes a placement plate 2 and a rotating plate 4 located below the placement plate 2. Each of the four diagonal openings of the placement plate 2 has a sliding hole 3 facing the corner. All sliding holes 3 are slidably connected to a slider 301 with an I-shaped cross-section. The bottom of all sliders 301 is rotatably connected to an L-shaped connecting rod 302 via a rotating shaft. The other end of the L-shaped connecting rod 302 is rotatably connected to the edge of the rotating plate 4 via a rotating shaft. A clamping plate 8 is fixedly installed on the upper end face of all sliders 301 near the center of the placement plate 2. A thin-film pressure sensor 801 is fixedly installed on the side of the clamping plate 8 near the center of the placement plate 2, and a buffer pad 802 is fixedly installed on the other side of the thin-film pressure sensor 801.

[0026] In this embodiment: Two electric actuators 7 are activated simultaneously, causing their extension and retraction to move the corresponding support plates 6. This allows the support plates 6 to push the slider 301 to slide within the sliding hole 3. The L-shaped connecting rod 302 at the bottom of the slider 301 converts the linear motion into rotational motion. The connecting rod 302 drives the rotating plate 4 to rotate around the fixed axis 5. The rotational motion of the rotating plate 4 is converted into synchronous radial motion of the four clamping plates 8 via a linkage mechanism. This causes the four clamping plates 8 to move synchronously towards the center of the placement plate 2 or expand outwards. When the four clamping plates 8 move synchronously towards the center of the placement plate 2, the quartz crucible can be centered and clamped. At this time, the thin-film pressure sensor 801 monitors the clamping force in real time, the buffer pad 802 protects the crucible surface, and the PLC touchscreen all-in-one machine 9 receives the sensor signal and automatically adjusts the stroke of the electric actuators 7 to achieve precise clamping force control and ensure clamping stability.

[0027] As a technical optimization of this utility model, the bottom of the placement plate 2 is provided with two symmetrically distributed support plates 6, one of which is fixedly installed at the bottom of the placement plate 2, and the other support plate 6 is fixedly installed at the bottom of the corresponding slider 301. Two electric push rods 7 are installed between the tops of the two support plates 6.

[0028] In this embodiment, two electric actuators 7 are horizontally connected in parallel between the tops of two support plates. The cylinder end of the electric actuator 7 is hinged to one of the support plates 7, and the piston rod end is hinged to the other support plate 7. When the electric actuator 7 extends, it pushes one of the support plates 6 to drive the slider 301 to slide along the sliding hole 3 toward the center of the placement plate 2. When the electric actuator 7 retracts, it pulls the slider 301 to move outward. Through this symmetrical drive structure, it can be ensured that the four clamping plates 8 always maintain synchronous movement, so as to achieve stable clamping and release of the quartz crucible.

[0029] As a technical optimization of this utility model, a fixed shaft 5 is fixedly installed at the bottom center of the placement plate 2, and the other end of the fixed shaft 5 passes through the rotating plate 4 and is rotatably connected to the rotating plate 4 through a bearing.

[0030] In this embodiment: when the electric actuator 7 pushes the slider 301 to move, the connecting rod 302 drives the rotating plate 4 to rotate smoothly around the fixed shaft 5.

[0031] As a technical optimization of this utility model, the rotating plate 4 is square.

[0032] In this embodiment, the four connection points are symmetrically distributed, resulting in more balanced force transmission, easier machining and positioning, and guaranteed assembly accuracy.

[0033] As a technical optimization of this utility model, the buffer pad 802 is made of high-temperature resistant silicone or ceramic fiber pad.

[0034] In this embodiment: the high temperature resistance of the clamping plate 8 is increased, so it is not easily deformed during long-term high-temperature operation, and hard contact damage to the crucible is prevented.

[0035] As a technical optimization of this utility model, multiple support legs 201 are fixedly installed between the bottom of the placement plate 2 and the top of the base 1.

[0036] In this embodiment, multiple support legs 201 can support and fix the placement plate 2.

[0037] As a technical optimization of this utility model, a PLC touch screen all-in-one machine 9 is fixedly installed on the upper surface of the base 1. The PLC touch screen all-in-one machine 9 is electrically connected to the electric push rod 7 and the thin film pressure sensor 801, and is used to control the clamping force and adjust the clamping position.

[0038] In this embodiment, the PLC touch screen all-in-one machine 9 can easily control the simultaneous operation of the two electric push rods 7 and facilitate the control of the clamping force.

[0039] The working principle and usage process of this utility model are as follows: When in use, the quartz crucible to be processed is placed on top of the placement plate 2 and positioned between the four clamping plates 8. Then, the two electric push rods 7 are started to run simultaneously, causing the two electric push rods 7 to extend and retract, driving the corresponding support plate 6 to move. The support plate 6 pushes the slider 301 to slide in the sliding hole 3. The L-shaped connecting rod 302 at the bottom of the slider 301 converts the linear motion into rotational motion. The connecting rod 302 drives the rotating plate 4 to rotate around the fixed axis 5. The rotational motion of the rotating plate 4 is converted into the synchronous radial motion of the four clamping plates 8 through the linkage mechanism, so that the four clamping plates 8 move synchronously towards the quartz crucible and center and clamp the quartz crucible. At this time, the thin film pressure sensor 801 monitors the clamping force in real time and transmits the monitored information to the PLC touch screen all-in-one machine 9. The PLC touch screen all-in-one machine 9 receives the sensor signal and automatically adjusts the stroke of the electric push rod 7 to achieve precise clamping force control and ensure the stability of clamping. The buffer pad 802 protects the surface of the crucible and prevents damage to the surface of the crucible.

[0040] After the quartz crucible is processed, the two electric push rods 7 are activated to retract, causing the four clamping plates 8 to expand outward simultaneously to release the quartz crucible, making it easier for staff to pick up and put down the quartz crucible.

[0041] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A clamping device for a quartz crucible, comprising a base (1), characterized in that: The base (1) is provided with a clamping mechanism at its top. The clamping mechanism includes a placement plate (2) and a rotating plate (4) located below the placement plate (2). Each of the four diagonal openings of the placement plate (2) has a sliding hole (3) with an opening facing the corner. All the sliding holes (3) are slidably connected to a slider (301) with an I-shaped cross section. The bottom of all the sliders (301) is rotatably connected to an L-shaped connecting rod (302) via a rotating shaft. The other end of the L-shaped connecting rod (302) is rotatably connected to the edge of the rotating plate (4) via a rotating shaft. A clamping plate (8) is fixedly installed on the upper end face of all the sliders (301) near the center of the placement plate (2). A thin film pressure sensor (801) is fixedly installed on the side of the clamping plate (8) near the center of the placement plate (2). A buffer pad (802) is fixedly installed on the other side of the thin film pressure sensor (801).

2. A quartz crucible holding device according to claim 1, characterized in that: The bottom of the placement plate (2) is provided with two symmetrically distributed support plates (6), one of which is fixedly installed at the bottom of the placement plate (2), and the other is fixedly installed at the bottom of the corresponding slider (301). Two electric push rods (7) are installed between the tops of the two support plates (6).

3. A quartz crucible holding device according to claim 1, characterized in that: A fixed shaft (5) is fixedly installed at the bottom center of the placement plate (2). The other end of the fixed shaft (5) passes through the rotating plate (4) and is rotatably connected to the rotating plate (4) through a bearing.

4. A quartz crucible holding device according to claim 1, characterized in that: The rotating plate (4) is square.

5. A quartz crucible holding device according to claim 1, characterized in that: The buffer pad (802) is made of high-temperature resistant silicone or ceramic fiber.

6. The clamping device for a quartz crucible according to claim 1, characterized in that: Multiple support legs (201) are fixedly installed between the bottom of the placement plate (2) and the top of the base (1).

7. A quartz crucible holding device according to claim 2, wherein: The upper surface of the base (1) is fixedly installed with a PLC touch screen all-in-one machine (9). The PLC touch screen all-in-one machine (9) is electrically connected to the electric push rod (7) and the thin film pressure sensor (801) for controlling the clamping force and adjusting the clamping position.

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