Centering tool for seed rod of crystal furnace

Abstract

The utility model discloses a centering tool for a seed rod of a crystal furnace, which belongs to the technical field of centering tools for seed rods and comprises a motor chuck and a quartz tube, the seed rod is arranged on the motor chuck, a centering clamp component is arranged at the top of the quartz tube, a fixing component is arranged on the centering clamp component, and the fixing component is connected with the motor chuck. The centering clamp assembly comprises a first clamping block and a second clamping block, the top of the first clamping block and the top of the second clamping block are each fixedly provided with an insertion block, the first clamping block, the second clamping block and the insertion blocks are each provided with a through groove, the radius of the first clamping block is equal to the radius of the second clamping block, and the fixing assembly comprises a pull block; according to the utility model, the centering clamp assembly is arranged, so that the problems that the centering of the seed rod is complicated and the central point is difficult to find in the crystal growth process are effectively solved, the operation is simple, rapid and reliable, more favorable support is provided, and the use effect is good.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of seed crystal rod centering tool, especially relates to a crystal furnace seed crystal rod centering tool. BACKGROUND

[0002] Seed crystal is a small crystal which can have the same crystal direction as required crystal, and it is a seed for growing single crystal, seed crystal is also called crystal seed, and different crystal directions can be obtained, seed crystal can be divided into flaky seed crystal, square seed crystal, round seed crystal, conical seed crystal and half-conical seed crystal according to shape.

[0003] In the whole crystal growth furnace process, the clamping of the seed crystal rod is very important, because the whole quartz tube is long, and the bottom of the quartz tube is in the crystal growth furnace and cannot be observed, so the seed crystal rod head is first clamped by a rotating motor clamp, and then the seed crystal rod is swung to judge whether the seed crystal rod is concentric with the quartz tube, and whether the seed crystal rod is in the center of the bottom of the quartz tube is judged completely according to experience and feeling, if the seed crystal rod is not clamped in place, the problem of collision or friction between the seed crystal rod and the quartz tube in the rotating process will occur, and once the above problem occurs, it will seriously affect the whole crystal growth process and further affect the growth quality of the crystal. UTILITY MODEL CONTENTS

[0004] The utility model discloses a crystal furnace seed crystal rod centering tool, which can solve the problem that the clamping of the seed crystal rod is very important in the whole crystal growth furnace process, and the bottom of the quartz tube is in the crystal growth furnace and cannot be observed, so the seed crystal rod head is first clamped by a rotating motor clamp, and then the seed crystal rod is swung to judge whether the seed crystal rod is concentric with the quartz tube, and whether the seed crystal rod is in the center of the bottom of the quartz tube is judged completely according to experience and feeling, if the seed crystal rod is not clamped in place, the problem of collision or friction between the seed crystal rod and the quartz tube in the rotating process will occur, and once the above problem occurs, it will seriously affect the whole crystal growth process and further affect the growth quality of the crystal.

[0005] In order to realize the above-mentioned purpose, the utility model discloses a crystal furnace seed crystal rod centering tool, which includes motor clamp and quartz tube, the motor clamp is provided with seed crystal rod, the top of the quartz tube is provided with centering clamp assembly, and the centering clamp assembly is provided with fixing assembly.

[0006] As a further description of the above technical scheme:

[0007] The centering clamp assembly includes first clamping block and second clamping block, and the top of the first clamping block and the second clamping block is fixedly installed with an insertion block.

[0008] As a further description of the above technical scheme:

[0009] The first clamping block, the second clamping block, and the insert block are all provided with through slots, and the radius of the first clamping block is equal to the radius of the second clamping block.

[0010] As a further description of the above technical solution:

[0011] The fixing component includes a pull block, a pull rod is fixedly installed at the bottom of the pull block, a fixing plate is fixedly installed at the bottom end of the pull rod, and a spring is fitted on the outer wall of the pull rod.

[0012] As a further description of the above technical solution:

[0013] The bottom end of the spring is fixedly installed on the outer wall of the fixing plate, the top end of the spring is fixedly installed on the inner wall of the first clamping block, and a pin is fixedly installed on the lower surface of the fixing plate.

[0014] As a further description of the above technical solution:

[0015] A plug plate is fixedly installed on the outer wall of the second clamping block, and the upper surface of the plug plate is provided with a plug hole. A slot is provided on the outer wall of the first clamping block.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0017] 1. In this utility model, by setting a centering clamp assembly, the centering clamp assembly and the quartz tube are first ensured to be in the same center. Then, the seed crystal rod is ensured to be in the same center with the first clamping block and the second clamping block by passing through holes set on the first clamping block and the second clamping block. Thus, the seed crystal rod and the quartz tube are kept relatively centered. The clamping assembly is made of polytetrafluoroethylene and is made with a hole in the middle. The hole diameter is required to be the same as the inner diameter of the insert block and the quartz tube. The first clamping block and the second clamping block clamp the seed crystal rod. Then, the first clamping block and the second clamping block slide down to let the insert block fall into the quartz tube. Through this design, the problem of cumbersome centering of the seed crystal rod and difficulty in finding the center point during crystal growth is effectively solved. Its operation is simple, fast and reliable, provides more favorable support and has good performance.

[0018] 2. In this utility model, by setting a fixing component, firstly, pulling the pull block causes the fixing plate to move upward via the pull rod. At the same time, the fixing plate compresses the spring, causing it to form a compressed state. Simultaneously, the fixing plate moves the pin, causing the first clamping block and the second clamping block to overlap, so that the insert plate on the second clamping block is inserted into the slot on the first clamping block. Then, the pull block is released, and the spring force causes the fixing plate to return to its original position. The pin is inserted into the through hole on the top surface of the insert plate. Through this design, the first clamping block and the second clamping block in the centering clamp assembly are effectively overlapped and fixed together, preventing separation and greatly improving practicality and performance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the planar structure of a crystal furnace seed rod centering tool.

[0020] Figure 2 This is a three-dimensional structural diagram of a centering clamp assembly in a crystal furnace seed rod centering tool.

[0021] Figure 3 This is a three-dimensional structural diagram of the first clamping block in a crystal furnace seed rod centering tool.

[0022] Figure 4 This is a three-dimensional structural diagram of a fixing component in a crystal furnace seed rod centering tool.

[0023] Legend:

[0024] 1. Motor chuck; 2. Seed crystal rod; 3. Quartz tube; 4. Centering clamp assembly; 41. First clamping block; 42. Insertion block; 43. Second clamping block; 5. Fixing assembly; 51. Insertion plate; 52. Slot; 53. Pull block; 54. Pull rod; 55. Spring; 56. Fixing plate; 57. Pin. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-4 This utility model provides a technical solution: a crystal furnace seed crystal rod centering tool, including a motor chuck 1 and a quartz tube 3, wherein a seed crystal rod 2 is provided on the motor chuck 1, and a centering clamp assembly 4 is provided on the top of the quartz tube 3, and a fixing assembly 5 is provided on the centering clamp assembly 4;

[0027] The centering clamp assembly 4 includes a first clamping block 41 and a second clamping block 43. An insert 42 is fixedly installed on the top of both the first clamping block 41 and the second clamping block 43. A through groove is provided on the first clamping block 41, the second clamping block 43 and the insert 42. The radius of the first clamping block 41 is equal to the radius of the second clamping block 43.

[0028] The specific implementation method is as follows: First, the centering clamp assembly 4 and the quartz tube 3 are ensured to be in the same center. Then, the seed crystal rod 2 is ensured to be in the same center with the first clamping block 41 and the second clamping block 43 through the holes provided on the first clamping block 41 and the second clamping block 43, thereby achieving the purpose of keeping the seed crystal rod 2 and the quartz tube 3 relatively centered. The material used for the centering clamp assembly 4 is polytetrafluoroethylene. It is made with a hole in the middle. The hole diameter is required to be the same as the inner diameter of the insert 42 and the quartz tube 3. The first clamping block 41 and the second clamping block 43 clamp the seed crystal rod 2. Then, the first clamping block 41 and the second clamping block 43 slide down, so that the insert 42 falls into the quartz tube 3.

[0029] The fixing component 5 includes a pull block 53, a pull rod 54 fixedly installed at the bottom of the pull block 53, a fixing plate 56 fixedly installed at the bottom end of the pull rod 54, a spring 55 fitted on the outer wall of the pull rod 54, the bottom end of the spring 55 fixedly installed on the outer wall of the fixing plate 56, the top end of the spring 55 fixedly installed on the inner wall of the first clamping block 41, a pin 57 fixedly installed on the lower surface of the fixing plate 56, an insert plate 51 fixedly installed on the outer wall of the second clamping block 43, an insertion hole provided on the upper surface of the insert plate 51, and a slot 52 provided on the outer wall of the first clamping block 41.

[0030] The specific implementation method is as follows: First, pull the pull block 53. The pull block 53 drives the fixed plate 56 to move upward through the pull rod 54. At the same time, the fixed plate 56 squeezes the spring 55 to form a compressed state. The fixed plate 56 drives the pin 57 to move simultaneously. Then, the first clamping block 41 and the second clamping block 43 are overlapped, so that the insert plate 51 provided on the second clamping block 43 is inserted into the slot 52 provided on the first clamping block 41. Then, release the pull block 53. The spring force of the spring 55 makes the fixed plate 56 return to its original position, and the pin 57 is inserted into the through hole provided on the top surface of the insert plate 51.

[0031] Working principle: First, the centering clamp assembly 4 and the quartz tube 3 are ensured to be in the same center. Then, the seed crystal rod 2 is further aligned with the first clamping block 41 and the second clamping block 43 by passing through holes in them. This achieves the goal of keeping the seed crystal rod 2 and the quartz tube 3 relatively centered. The centering clamp assembly 4 is made of polytetrafluoroethylene (PTFE) and has a centrally drilled hole with a diameter matching the inner diameter of the insert block 42 and the quartz tube 3. The first clamping block 41 and the second clamping block 43 clamp the seed crystal rod 2, and then the first clamping block 41 and the second clamping block 43 slide down. The two clamping blocks 43 cause the insert 42 to fall into the quartz tube 3. First, pull the pull block 53. The pull block 53 drives the fixing plate 56 to move upward through the pull rod 54. At the same time, the fixing plate 56 squeezes the spring 55 to form a compressed state. The fixing plate 56 drives the pin 57 to move simultaneously. Then, the first clamping block 41 and the second clamping block 43 are overlapped, so that the insert plate 51 set on the second clamping block 43 is inserted into the slot 52 set on the first clamping block 41. Then, the pull block 53 is released, and the fixing plate 56 is reset by the elastic force of the spring 55. The pin 57 is inserted into the through hole set on the top surface of the insert plate 51.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A crystal furnace seed rod centering tool, comprising a motor chuck (1) and a quartz tube (3), characterized in that: The motor chuck (1) is provided with a seed crystal rod (2), the top of the quartz tube (3) is provided with a centering clamp assembly (4), and the centering clamp assembly (4) is provided with a fixing assembly (5).

2. The crystal furnace seed rod centering tool according to claim 1, characterized in that, The centering clamp assembly (4) includes a first clamping block (41) and a second clamping block (43), and an insert (42) is fixedly installed on the top of both the first clamping block (41) and the second clamping block (43).

3. The crystal furnace seed rod centering tool according to claim 2, characterized in that, The first clamping block (41), the second clamping block (43), and the insert block (42) are all provided with through slots, and the radius of the first clamping block (41) is equal to the radius of the second clamping block (43).

4. A crystal furnace seed rod centering tool according to claim 3, characterized in that, The fixing component (5) includes a pull block (53), a pull rod (54) is fixedly installed at the bottom of the pull block (53), a fixing plate (56) is fixedly installed at the bottom end of the pull rod (54), and a spring (55) is fitted on the outer wall of the pull rod (54).

5. A crystal furnace seed rod centering tool according to claim 4, characterized in that, The bottom end of the spring (55) is fixedly installed on the outer wall of the fixing plate (56), the top end of the spring (55) is fixedly installed on the inner wall of the first clamping block (41), and a pin (57) is fixedly installed on the lower surface of the fixing plate (56).

6. A crystal furnace seed rod centering tool according to claim 5, characterized in that, A plug plate (51) is fixedly installed on the outer wall of the second clamping block (43), and the upper surface of the plug plate (51) is provided with a plug hole. A slot (52) is provided on the outer wall of the first clamping block (41).

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