Rod dismounting manipulator clamp for producing silicon rods by reducing polycrystalline silicon through improved Siemens method

Abstract

The utility model relates to the technical field of polycrystalline silicon production, in particular to a rod dismounting manipulator clamp for producing a silicon rod by reducing polycrystalline silicon through an improved Siemens method, which comprises two clamp bodies which are oppositely arranged and used for clamping the silicon rod, and magnetic strips and tungsten-cobalt hard alloy blocks are arranged on the surfaces of the sides, close to the silicon rod, of the clamp bodies; the tungsten-cobalt hard alloy blocks protrude out of the clamp body outwards and protrude out of the magnetic strips outwards. By means of the rod disassembling mechanical arm clamp, the problem that non-silicon material foreign matter is easily introduced in the rod disassembling process can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of polysilicon production, in particular to a rod removing manipulator clamp for producing silicon rods by improved Siemens method polysilicon reduction. Background Technique

[0002] In the process of polysilicon production, especially when the silicon rods produced in the reduction furnace need to be removed from the reduction furnace by a manipulator and placed into a material truck for subsequent processing. Regarding the manipulator clamp, in the prior art, it is generally made of polyurethane material. For example, a Chinese utility model patent document with the publication number CN208100370U and the publication date of November 16, 2018, the technical solution disclosed in this patent document is as follows: a polysilicon rod clamp assembly, including a compression cap assembly, a column, and a jaw assembly. The compression cap assembly is fixedly installed at the top of the column, and the jaw assembly is fixedly installed in the middle and lower part of the outer side wall of the column. The jaw assembly includes a cast jaw, a cylinder, a stainless steel guide rail, and a slider. The bottom of the cast jaw is fixedly connected to the slider, and the slider slides on the stainless steel guide rail. A cylinder for braking is also provided between the cast jaws. Among them, the jaws are cast with polyurethane material.

[0003] When using the improved Siemens method for reduction production, the produced silicon material is an inverted U-shaped rod-shaped polysilicon. Taking the 40-pair rod reduction furnace widely used at present as an example, the weight of each pair of silicon rods exceeds 260 kilograms, and the diameter of the silicon rods is 120 - 180 mm. When using the existing manipulator, combined with a cylinder and a clamp with polyurethane to hold the silicon rod, there are two problems in the process of removing the rod: one is that due to the uneven surface and heavy weight of the silicon rod, in the process of removing the rod, the polyurethane clamp of the manipulator must apply sufficient pressure to the silicon rod to provide sufficient friction to lift the silicon rod and smoothly complete the process of removing the rod. When the silicon rod is vertically placed into the material truck, friction occurs between the silicon rod and the surface of the polyurethane clamp, resulting in polyurethane scraping and falling into the silicon material, leading to quality problems. The other is that there are many metal parts and bolts in the manipulator, cylinder, and clamp, etc. During the long-term operation of the equipment, there will be metal fatigue and wear, etc., which may cause metal debris or bolts to fall off, introducing metal substances into the silicon material, resulting in serious quality problems. Summary of the Invention

[0004] To solve the above technical problems, the utility model provides a rod removing manipulator clamp for producing silicon rods by improved Siemens method polysilicon reduction, which can effectively solve the problem of easily introducing non-silicon material foreign matters in the process of removing the rod.

[0005] The utility model is realized by adopting the following technical solutions:

[0006] The rod removing manipulator fixture for improving the production of silicon rods by the Siemens process for polysilicon reduction includes two relatively arranged fixture bodies for clamping silicon rods. On the surface of each fixture body adjacent to the silicon rod, there are magnetic strips and tungsten-cobalt hard alloy blocks; the tungsten-cobalt hard alloy blocks protrude outward from the fixture body and protrude outward from the magnetic strips.

[0007] The surface of the tungsten-cobalt hard alloy block adjacent to the silicon rod is wavy.

[0008] The number of tungsten-cobalt hard alloy blocks on each fixture body is at least two.

[0009] The magnetic strip is located between two adjacent tungsten-cobalt hard alloy blocks.

[0010] The magnetic strip and the tungsten-cobalt hard alloy block are respectively embedded in the fixture body.

[0011] The tungsten-cobalt hard alloy block protrudes outward from the magnetic strip by at least 3 mm.

[0012] The tungsten-cobalt hard alloy block protrudes outward from the fixture body by 5 mm.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. In the present utility model, by arranging tungsten-cobalt hard alloy blocks on the fixture body, it can avoid the scratching of the polyurethane fixture body and silicon material during the process of removing silicon rods, thus preventing the introduction of non-silicon foreign matters; at the same time, the setting of the magnetic strip can adsorb damaged tungsten-cobalt hard alloy blocks, other magnetic substances of the manipulator and magnetic silicon powder on the surface of the silicon rod, which can avoid the problem of introducing non-silicon foreign matters during the rod removing process and prevent quality problems.

[0015] The tungsten-cobalt hard alloy block protrudes outward from the magnetic strip, and during the rod removing process, it can avoid the magnetic strip contacting the surface of the silicon rod, thus preventing metal contamination.

[0016] 2. In the present utility model, the surface of the tungsten-cobalt hard alloy block adjacent to the silicon rod is wavy, which is convenient for increasing the friction between the tungsten-cobalt hard alloy block and the silicon rod, and ensuring the safety of rod removal under the pressure applied by the manipulator cylinder.

[0017] 3. The number of tungsten-cobalt hard alloy blocks on each fixture body is at least two, which is convenient for better clamping the silicon rod.

[0018] 4. The magnetic strip and the tungsten-cobalt hard alloy block are respectively embedded in the fixture body, making the structures of the magnetic strip and the tungsten-cobalt hard alloy block more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following will further elaborate on the present utility model in conjunction with the drawings in the specification and specific embodiments, where:

[0020] Figure 1 is a schematic plan view of the present utility model;

[0021] Figure 2 is a schematic side view of the present utility model;

[0022] Figure 3 is a schematic cross-sectional view of the tungsten-cobalt hard alloy block in the present utility model;

[0023] Reference numerals in the figure:

[0024] 1. Fixture body, 2. Magnetic strip, 3. Tungsten-cobalt hard alloy block. Specific embodiments

[0025] Embodiment 1

[0026] As a basic embodiment of the present utility model, the present utility model includes a rod-removing manipulator fixture for improving the production of silicon rods by the Siemens process for polysilicon reduction. The fixture includes two oppositely arranged fixture bodies 1 for clamping the silicon rod. The fixture body 1 can be made of polyurethane. The remaining components of the manipulator, such as the driving component for driving the fixture body 1 to move back and forth, etc., can all adopt conventional technical means in the art, and this embodiment does not improve them. This embodiment improves the fixture body 1. Specifically, a magnetic strip 2 and a tungsten-cobalt hard alloy block 3 are provided on the surface of the fixture body 1 on the side close to the silicon rod. The tungsten-cobalt hard alloy block 3 protrudes outward from the fixture body 1 and protrudes outward from the magnetic strip 2.

[0027] Through the mutual cooperation of the tungsten-cobalt hard alloy blocks 3 on the two fixture bodies 1, during the rod-removing process, the silicon rod contacts the tungsten-cobalt hard alloy blocks 3 and does not rub against the polyurethane fixture body 1, ensuring the safety of rod removal.

[0028] Embodiment 2

[0029] As a preferred embodiment of the present utility model, the present utility model includes a rod-removing manipulator fixture for improving the production of silicon rods by the Siemens process for polysilicon reduction, including two oppositely arranged fixture bodies 1 for clamping the silicon rod. On the surface of each fixture body 1 on the side close to the silicon rod, a magnetic strip 2 and two tungsten-cobalt hard alloy blocks 3 are provided. The magnetic strip 2 is arranged between the two tungsten-cobalt hard alloy blocks 3.

[0030] One end of the tungsten-cobalt hard alloy block 3 and the magnetic strip 2 can be fixedly connected to the surface of the fixture body 1 respectively, and the other end protrudes outward from the fixture body 1. And the tungsten-cobalt hard alloy block 3 protrudes outward from the magnetic strip 2. Further, in order to increase the friction between the tungsten-cobalt hard alloy block 3 and the silicon rod, the surface of the tungsten-cobalt hard alloy block 3 on the side close to the silicon rod is wavy.

[0031] Embodiment 3

[0032] As another preferred embodiment of the present utility model, the present utility model includes a rod - removing manipulator fixture for improving the silicon rod reduction production in the Siemens process for polysilicon, which includes two relatively - arranged fixture bodies 1 for clamping the silicon rod. On the surface of each fixture body 1 on the side close to the silicon rod, there are two magnetic strips 2 and two tungsten - cobalt hard alloy blocks 3. The two magnetic strips 2 are respectively arranged between the two tungsten - cobalt hard alloy blocks 3 and are respectively located at both ends of the fixture body 1.

[0033] Among them, one end of the tungsten - cobalt hard alloy block 3 can be embedded in the fixture body 1, and the other end protrudes outwards from the fixture body 1. The magnetic strip 2 can be integrally embedded in the fixture body 1, and the surface of the magnetic strip 2 can be lower than the surface of the fixture body 1 or flush with the surface of the fixture body 1.

[0034] Embodiment 4

[0035] As the best embodiment of the present utility model, the present utility model includes a rod - removing manipulator fixture for improving the silicon rod reduction production in the Siemens process for polysilicon. The fixture can be arranged on the manipulator, and a drive system for driving the intelligent rod - removing of the manipulator can be connected to the manipulator. Among them, the fixture includes two relatively - arranged fixture bodies 1 for clamping the silicon rod, and the fixture body 1 is made of polyurethane. The structures and connection relationships of the above - mentioned manipulator, drive system, and fixture can all adopt conventional technical means in the art, and the present utility model does not improve them.

[0036] The present utility model mainly improves the fixture body 1. Specifically, on the surface of the fixture body 1 on the side close to the silicon rod, there are two magnetic strips 2 and four tungsten - cobalt hard alloy blocks 3. Referring to the attached Figure 1 and the attached Figure 2 , the four tungsten - cobalt hard alloy blocks 3 can be in a plate shape and are evenly arranged around the fixture body 1. The two magnetic strips 2 can be arranged along the central axis of the fixture body 1 and are located between two adjacent tungsten - cobalt hard alloy blocks 3.

[0037] The back side of the tungsten - cobalt hard alloy block 3, that is, the side far from the silicon rod, can be embedded in the fixture body 1, and the front side, that is, the surface on the side close to the silicon rod, protrudes outwards from the fixture body 1 by 5 mm. The magnetic strip 2 can be a strong magnetic strip, with the back side embedded in the fixture body 1 and then fixed by bolts. To avoid the magnetic strip 2 contacting the surface of the silicon rod during the rod - removing process and causing metal contamination, the magnetic strip 2 must be lower than the tungsten - cobalt hard alloy block 3. Specifically, in this embodiment, it is lower by 3 mm.

[0038] Furthermore, referring to the attached Figure 3, the surface of the tungsten-cobalt hard alloy block 3 on the side close to the silicon rod is wavy, so as to increase the friction between the tungsten-cobalt hard alloy block 3 and the silicon rod, and ensure the safety of rod removal under the pressure applied by the manipulator cylinder.

[0039] In summary, after reading the documents of the present utility model, other various corresponding transformation schemes made by those of ordinary skill in the art without creative mental labor according to the technical solutions and technical concepts of the present utility model all fall within the scope protected by the present utility model.

Claims

1. A rod-removing manipulator fixture for producing silicon rods by the improved Siemens method for reducing polysilicon, comprising two oppositely arranged fixture bodies (1) for clamping silicon rods, characterized in that: A magnetic strip (2) and a tungsten-cobalt carbide block (3) are provided on the surface of the clamp body (1) on the side close to the silicon rod; the tungsten-cobalt carbide block (3) protrudes outward from the clamp body (1) and also protrudes outward from the magnetic strip (2).

2. The rod-removing manipulator fixture for producing silicon rods by reducing polysilicon using the improved Siemens process according to claim 1, characterized in that: The surface of the tungsten-cobalt hard alloy block (3) on the side close to the silicon rod is wavy.

3. The rod-removing manipulator fixture for producing silicon rods by reducing polysilicon using the improved Siemens process according to claim 2, characterized in that: The number of tungsten-cobalt cemented carbide blocks (3) on each fixture body (1) is at least two.

4. The rod-removing manipulator fixture for producing silicon rods by reducing polysilicon using the improved Siemens process according to claim 3, characterized in that: The magnetic strip (2) is located between two adjacent tungsten-cobalt hard alloy blocks (3).

5. The rod-removing robot clamp for producing silicon rods by reducing polysilicon using the improved Siemens process according to any one of claims 1 to 4, characterized in that: The magnetic strip (2) and the tungsten-cobalt hard alloy block (3) are respectively embedded in the fixture body (1).

6. The rod-removing manipulator fixture for producing silicon rods by reducing polysilicon using the improved Siemens process according to claim 5, characterized in that: The tungsten-cobalt hard alloy block (3) protrudes outward from the magnetic strip (2) by at least 3 mm.

7. The rod-removing robot clamp for producing silicon rods by reducing polysilicon using the improved Siemens process according to claim 6, characterized in that: The tungsten-cobalt hard alloy block (3) protrudes outward from the fixture body (1) by 5 mm.

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