CN-224210237-U - Crystal bar cutting device

Abstract

The embodiment of the utility model provides a crystal bar cutting device, and relates to the technical field of single crystal cutting. The crystal bar cutting device comprises a feeding mechanism and a cutting mechanism. The feeding mechanism is used for placing the crystal bars along the first direction. The cutting mechanism is arranged on the feeding mechanism. The cutoff mechanism includes a plurality of cutter head assemblies and an adjustment assembly disposed along a first direction. The cutter head assembly includes a cutting chamber and a weight chamber. The adjusting component is used for adjusting the position of the tool bit component along the first direction. The cutter head comprises a cutter head body, a counterweight chamber, a cutter head assembly and a cutter head assembly, wherein the cutter head assembly is arranged along a first direction, the counterweight chamber and the cutter chamber are arranged along the first direction, and the cutter head assembly is arranged along the second direction. The utility model can realize the cutting of the head material into the head cover and the reverse cutting material in one process, does not need secondary processing, improves the processing efficiency, avoids the generation of a cutting inclined plane and improves the processing qualification rate of products.

Inventors

• PENG YUNXIANG
• LIU JIANPING
• HE CHUYANG

Assignees

• 宇泽新能源(昆明)有限公司

Dates

Publication Date

20260508

Application Date

20250529

Claims (10)

1. 1. A bar cutting device, comprising: the feeding mechanism is used for placing the crystal bars along the first direction; The cutting mechanism is arranged on the feeding mechanism and comprises a plurality of cutter head assemblies and an adjusting assembly, wherein the cutter head assemblies are arranged along the first direction, the cutter head assemblies comprise a cutting chamber and a counterweight chamber, and the adjusting assembly is used for adjusting the positions of the cutter head assemblies along the first direction; The cutter head assembly comprises a cutter head assembly, a counter weight chamber, a cutting chamber and a balance weight chamber, wherein the cutter head assembly is arranged in a first direction, the counter weight chamber and the cutting chamber are arranged in the first direction, and the cutter head assembly is arranged in a second direction, and the cutting chamber and the counter weight chamber are arranged in the first direction.
2. 2. The ingot cutting apparatus of claim 1 wherein the adjustment assembly comprises a slide rail disposed along the first direction, the tool head assembly being in sliding engagement with the slide rail.
3. 3. The ingot cutting apparatus of claim 1, wherein the tool bit assembly further comprises a housing, the cutting chamber and the counterweight chamber are disposed in the housing, and a through hole for passing through the ingot is further formed in the housing.
4. 4. The ingot slicing apparatus of claim 3, wherein a cutter is installed in the cutting chamber.
5. 5. The ingot cutting apparatus of claim 4, wherein a driving member is further disposed in the housing, and the driving member is configured to drive the cutter to move toward or away from the loading mechanism.
6. 6. The ingot cutting apparatus of claim 4 wherein a weight is disposed within the weight chamber, the weight being mounted on the cutter.
7. 7. The ingot cutting apparatus of claim 4, wherein the cutting machine is a multi-wire cutting machine, and the sidewall of the through hole is provided with a threading hole.
8. 8. The ingot slicing apparatus of claim 1, wherein the loading mechanism comprises a transport member disposed along the first direction.
9. 9. The ingot cutting apparatus of claim 1, wherein the loading mechanism is further provided with a mounting groove.
10. 10. The ingot stopping apparatus as claimed in any one of claims 1 to 9, wherein in the last one of the head assemblies disposed in the first direction, the weight chamber and the cutting chamber are disposed in the first direction.

Description

Crystal bar cutting device Technical Field The utility model relates to the technical field of single crystal cutting, in particular to a crystal bar cutting device. Background The single crystal silicon rod is used as a base material in the semiconductor industry, and the processing precision in the production process directly influences the quality of a final product. In the Czochralski single crystal growth process, the head of the ingot naturally forms a conical or circular arc-shaped head cover structure after the ingot is pulled. This portion of the frit needs to be precisely divided into two parts, a tapered head cover and a cylindrical head counter-cut, according to the crystal growth process requirements. At present, a multi-bit crystal bar cutter is commonly adopted in the industry to carry out crystal bar cutting operation, and cutting of different specifications is completed by controlling bit spacing through a preset program. However, in practice it has been found that, subject to mechanical constraints, a fixed minimum safety distance exists between the first and second heads of the device, which distance is generally designed to be around 350mm, in order to meet the basic requirements of stability and cutting accuracy of the device. According to the crystal growth process specification, the ideal length of the head anti-blanking material is controlled to be about 150mm, which is obviously smaller than the minimum spacing between double cutter heads of the prior equipment. Therefore, the existing scheme is that a multi-cutter is used for cutting off the whole head material (comprising the head cover and the reverse cutting material) as a whole, and then the head material is moved to a single-cutter station for secondary cutting. The processing mode not only increases the material carrying times and the labor hour consumption, but also is more critical in the processing link of the single-cutter, and the processing defect of a non-vertical section is easily generated during single-cutter cutting due to the large diameter change of the joint of the head cover and the anti-cutting material, thereby influencing the product quality. Disclosure of utility model The utility model aims to provide a crystal bar cutting device which can cut head materials into head covers and reverse cutting materials in one working procedure, improves the processing efficiency, avoids the generation of cutting inclined planes and improves the processing qualification rate of products. Embodiments of the utility model may be implemented as follows: the utility model provides a crystal bar cutting device, which comprises: the feeding mechanism is used for placing the crystal bars along the first direction; The cutting mechanism is arranged on the feeding mechanism and comprises a plurality of cutter head assemblies and an adjusting assembly, wherein the cutter head assemblies are arranged along the first direction, the cutter head assemblies comprise a cutting chamber and a counterweight chamber, and the adjusting assembly is used for adjusting the positions of the cutter head assemblies along the first direction; The cutter head assembly comprises a cutter head assembly, a counter weight chamber, a cutting chamber and a balance weight chamber, wherein the cutter head assembly is arranged in a first direction, the counter weight chamber and the cutting chamber are arranged in the first direction, and the cutter head assembly is arranged in a second direction, and the cutting chamber and the counter weight chamber are arranged in the first direction. In an alternative embodiment, the adjustment assembly includes a slide rail disposed along the first direction, the bit assembly being in sliding engagement with the slide rail. In an alternative embodiment, the tool bit assembly further comprises a housing, the cutting chamber and the counterweight chamber are disposed in the housing, and a through hole for passing through the ingot is further formed in the housing. In an alternative embodiment, a cutter is mounted within the cutting chamber. In an alternative embodiment, a driving member is further disposed in the housing, and the driving member is used for driving the cutter to move towards or away from the feeding mechanism. In an alternative embodiment, a counterweight is disposed within the counterweight chamber, the counterweight being mounted on the cutter. In an alternative embodiment, the cutting machine is a multi-wire cutting machine, and the side wall of the through hole is provided with a threading hole. In an alternative embodiment, the loading mechanism includes a conveying member disposed along the first direction. In an alternative embodiment, the feeding mechanism is further provided with a mounting groove. In an alternative embodiment, in the last of the cutter head assemblies disposed along the first direction, the weight chamber and the cutting chamber are disposed along the first direction. The crystal