Rod falling protection tool for single crystal furnace

Abstract

The utility model discloses a single crystal furnace rod falling protection tool which comprises a crystal rod main body and a connecting rod installed on the outer wall of the upper end of the crystal rod main body, and a plurality of chucks are arranged on the circular outer wall of the crystal rod main body at equal intervals to clamp the crystal rod main body in a falling state. Lifting plates are arranged on the lower sides of the multiple chucks so as to limit the falling distance of a crystal bar main body, through openings which are through up and down are formed in the multiple chucks, and threaded rods which upwards penetrate through the interiors of the through openings are fixedly connected to the outer walls of the upper ends of the multiple lifting plates. When the crystal bar main body falls, the chuck drives the lifting plate to move synchronously in the process of moving and attaching the crystal bar main body, the lifting plate is made to move to the lower side of the crystal bar main body, after the chuck clamps the crystal bar main body and slides downwards due to inertia, the chuck can be lifted by the lifting plate, and the downward moving distance of the crystal bar main body is limited; and the situation that the chuck cannot clamp the crystal bar main body is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field related to rod-dropping protective tooling, and in particular relates to a rod-dropping protective tooling for a single crystal furnace. Background Art

[0002] A single crystal furnace ingot drop protection tooling is added to the auxiliary chamber. The tooling is pneumatically retractable and connected to the crystal ingot weightlessness system. When the weightlessness system sends a signal, the crystal ingot is clamped and popped out at the same time. However, when the tooling clamps the crystal ingot, there is a lack of a lifting device for the crystal ingot at the bottom, which causes the dropped ingot to slide downward during the clamping process, resulting in scratches on the surface of the crystal ingot when the tooling clamps it, reducing the quality of the crystal ingot. Utility Model Content

[0003] The utility model aims to provide a single crystal furnace rod falling protection tooling to solve the problem that when the tooling proposed in the above background technology clamps the crystal rod, there is a lack of a lifting device for the crystal rod at the bottom, which causes the crystal rod to slide downward during the clamping process.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a single crystal furnace ingot falling protection tooling, comprising a crystal ingot body and a connecting rod installed on the outer wall of the upper end of the crystal ingot body;

[0005] The circular outer wall of the crystal rod body is equidistantly provided with a plurality of clamps for clamping the crystal rod body in a falling state;

[0006] A lifting plate is arranged on the lower side of each of the plurality of chucks to limit the falling distance of the crystal rod body.

[0007] Preferably, a through opening extending upward and downward is formed inside each of the plurality of chucks, and a threaded rod extending upward through the through opening is fixedly connected to the outer walls of the upper ends of each of the plurality of lifting plates.

[0008] Preferably, the upper outer wall of the threaded rod is fixedly connected to a limiting baffle to limit the downward movement distance of the lifting plate, and a positioning nut is threadedly connected on the circular outer wall of the threaded rod and on the upper outer wall of the chuck to limit the position of the threaded rod.

[0009] Preferably, reinforcing ribs are embedded between the lifting plate and the inside of the threaded rod, and the lifting plate is trapezoidal with a larger surface located at the lower side of the crystal rod body.

[0010] Preferably, the rear circular outer wall of the chuck is fixedly connected to a fixing rod, and the rear outer wall of the fixing rod is fixedly connected to a force-bearing plate to control the forward movement of the chuck after being pushed by external pneumatic driving force.

[0011] Preferably, the angle of one side of the chuck that fits the crystal rod body is smaller than the curvature of the crystal rod body, and one side of the chuck that fits the crystal rod body is provided with polytetrafluoroethylene material to increase the friction between the chuck and the crystal rod body.

[0012] Compared with the prior art, the utility model provides a single crystal furnace rod drop protection tooling, which has the following beneficial effects:

[0013] By installing a lifting plate on the lower side of the chuck, when the crystal rod body falls, the chuck will drive the lifting plate to move synchronously during the process of moving to fit the crystal rod body, and move the lifting plate to the lower side of the crystal rod body. After the chuck clamps the crystal rod body, it slides downward due to inertia and can be lifted by the lifting plate to limit the downward movement distance of the crystal rod body, thus avoiding the situation where the chuck cannot clamp the crystal rod body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of a single crystal furnace rod falling protection tooling structure.

[0015] Figure 2 It is a schematic diagram of the local structure of the chuck area of ​​the utility model.

[0016] Figure 3 It is a schematic diagram of the side cross-sectional structure of the lifting plate area of ​​the utility model.

[0017] In the figure: 1. crystal rod body; 2. chuck; 3. fixing rod; 4. force plate; 5. limit baffle; 6. positioning nut; 7. lifting plate; 8. threaded rod; 9. reinforcing rib; 10. through port; 11. connecting rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model provides Figure 1-3 The single crystal furnace ingot falling protection tool shown in the figure comprises a crystal ingot body 1 and a connecting rod 11 installed on the outer wall of the upper end of the crystal ingot body 1;

[0020] The circular outer wall of the crystal rod body 1 is equidistantly provided with a plurality of chucks 2 to clamp the crystal rod body 1 in a falling state. When the rod falls, the weightlessness system will send a signal to make the external pneumatic device push the chuck 2 to move and clamp the crystal rod body 1 to avoid the rod falling.

[0021] A lifting plate 7 is provided on the lower side of multiple chucks 2 to limit the falling distance of the crystal rod body 1. When the chucks 2 clamp the crystal rod body 1 and the crystal rod body 1 just starts to fall and slide down, the chucks 2 can move the lifting plate 7 to the lower side of the crystal rod body 1 in advance during the movement to prevent the crystal rod body 1 from continuing to fall.

[0022] like Figure 2 and Figure 3 As shown, a plurality of chucks 2 are provided with through openings 10 extending upwardly therethrough, the upper outer walls of a plurality of lifting plates 7 are fixedly connected with threaded rods 8 extending upwardly therethrough in the through openings 10, the upper outer walls of the threaded rods 8 are fixedly connected with limiting baffles 5 to limit the downward movement distance of the lifting plates 7, and positioning nuts 6 are threadedly connected on the circular outer walls of the threaded rods 8 and on the upper outer walls of the chucks 2 to limit the position of the threaded rods 8.

[0023] The position of the lifting plate 7 can be adjusted as needed. The lifting plate 7 can be grasped and then rotated counterclockwise so that the threaded rod 8 and the inner wall thread of the through hole 10 are screwed together to move the lifting plate 7 up, while the lifting plate 7 can be moved down by rotating it clockwise. During the downward movement, the limit baffle 5 can limit the maximum downward movement range of the lifting plate 7.

[0024] like Figure 2 and Figure 3 As shown, reinforcing ribs 9 are embedded between the supporting plate 7 and the threaded rod 8 . The supporting plate 7 is trapezoidal and the larger surface is located at the lower side of the crystal rod body 1 .

[0025] By providing the reinforcing ribs 9, when the crystal rod body 1 moves downward and hits the lifting plate 7, it is possible to avoid the lifting plate 7 being tilted outward and deformed due to the downward impact force.

[0026] like Figure 1 As shown, the rear circular outer wall of the chuck 2 is fixedly connected to a fixing rod 3, and the rear outer wall of the fixing rod 3 is fixedly connected to a force-bearing plate 4 to control the forward movement of the chuck 2 after being pushed by an external pneumatic driving force. The angle of one side of the chuck 2 that fits the crystal rod body 1 is smaller than the curvature of the crystal rod body 1, and one side of the chuck 2 that fits the crystal rod body 1 is provided with polytetrafluoroethylene material to increase the friction between the chuck 2 and the crystal rod body 1.

[0027] When the chuck 2 is pneumatically pushed, the pneumatic push rod will hit the force plate 4 so that the fixing rod 3 drives the chuck 2 to move.

[0028] The implementation principle of this embodiment is: when the rod falls, the weightlessness system will send a signal, so that the external pneumatic system pushes the chuck 2 to move and clamp the crystal rod body 1 to avoid the rod falling. When the chuck 2 clamps the crystal rod body 1 and the crystal rod body 1 just slides down due to the rod falling, the chuck 2 can move the lifting plate 7 to the lower side of the crystal rod body 1 in advance during the movement to avoid the crystal rod body 1 from continuing to fall.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A single crystal furnace ingot falling protection tool, comprising a crystal ingot body (1) and a connecting rod (11) installed on the outer wall of the upper end of the crystal ingot body (1); The circular outer wall of the crystal rod body (1) is provided with a plurality of clamps (2) at equal intervals to clamp the crystal rod body (1) in a falling state; Features: A lifting plate (7) is provided on the lower side of each of the plurality of chucks (2) to limit the falling distance of the crystal rod body (1).

2. The single crystal furnace rod falling protection tooling according to claim 1 is characterized in that: A through opening (10) that passes through from top to bottom is provided inside the plurality of clamps (2), and a threaded rod (8) that passes through the through opening (10) upward is fixedly connected to the outer wall of the upper end of the plurality of lifting plates (7).

3. The single crystal furnace rod falling protection tooling according to claim 2 is characterized in that: The upper outer wall of the threaded rod (8) is fixedly connected to a limit baffle (5) to limit the downward movement distance of the lifting plate (7); a positioning nut (6) is threadedly connected on the circular outer wall of the threaded rod (8) and located on the upper outer wall of the chuck (2) to limit the position of the threaded rod (8).

4. The single crystal furnace rod drop protection tooling according to claim 1, characterized in that: A reinforcing rib (9) is embedded between the supporting plate (7) and the inside of the threaded rod (8); the supporting plate (7) is trapezoidal in shape and the larger surface is located at the lower side of the crystal rod body (1).

5. The single crystal furnace rod falling protection tooling according to claim 1 is characterized by: The rear circular outer wall of the clamp (2) is fixedly connected to a fixing rod (3), and the rear outer wall of the fixing rod (3) is fixedly connected to a force-bearing plate (4) to control the clamp (2) to move forward after being pushed by external pneumatic driving force.

6. The single crystal furnace rod drop protection tooling according to claim 1, characterized in that: The angle of one side of the chuck (2) that fits the crystal rod body (1) is smaller than the curvature of the crystal rod body (1), and the side of the chuck (2) that fits the crystal rod body (1) is provided with a polytetrafluoroethylene material to increase the friction between the chuck (2) and the crystal rod body (1).

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