Germanium crystal cutting and fixing device

Abstract

The utility model relates to the technical field of metal processing devices, in particular to a germanium crystal cutting and fixing device. The germanium crystal cutting and fixing device comprises a U-shaped groove and a bottom plate, the U-shaped groove is connected with the bottom plate so that the U-shaped groove can be fixed to a cutting device through the bottom plate, the depth of the U-shaped groove is 1 / 3-1 / 2 of the diameter of a germanium crystal, and the arc diameter of the U-shaped groove is larger than the diameter of the germanium crystal; according to the utility model, the depth of the U-shaped groove is 1 / 3-1 / 2 of the diameter of the germanium crystal, and the germanium crystal is fixed in the U-shaped groove by fitting the U-shaped groove with the germanium crystal, so that the whole fixing operation can be completed by a single person, the operation is simple, and the germanium crystal can be prevented from loosening and flying or sliding when being cut; and the qualified rate of germanium crystal finished products obtained through cutting and the safety of the cutting process are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal processing devices, in particular to a germanium crystal cutting and fixing device. Background Art

[0002] High-purity germanium crystals need to be cut into Hall plates, dislocation plates, and DLTS plates using a cutting machine. In order to prevent the high-purity germanium crystals from sliding, workers generally use glue to stick the crystals on a flat plate. Since the germanium crystal is cylindrical and has a relatively smooth surface, it is easy to slide when pasted and difficult to fix. Two people are required to cooperate during operation. In addition, the bottom of the cylindrical germanium crystal has less contact with the flat plate, and it is easy to loosen and fly when cutting. As a result, the germanium crystal cutting process in the prior art is complicated to operate, has low safety, and has a low qualified rate of finished products obtained by cutting. Utility Model Content

[0003] The utility model discloses a germanium crystal cutting and fixing device, which is used to solve the problems in the prior art that the germanium crystal cutting process is complicated to operate, has low safety, and has a low qualified rate of finished products obtained by cutting.

[0004] The embodiment of the utility model provides a germanium crystal cutting and fixing device, comprising: a U-shaped groove and a bottom plate;

[0005] The U-shaped groove is connected to the bottom plate so that the U-shaped groove is fixed to the cutting device through the bottom plate;

[0006] The depth of the U-shaped groove is 1 / 3 to 1 / 2 of the diameter of the germanium crystal;

[0007] The arc diameter of the U-shaped groove is larger than the diameter of the germanium crystal.

[0008] Preferably, the depth of the U-shaped groove is 1 / 3 of the diameter of the germanium crystal.

[0009] Preferably, the arc diameter of the U-shaped groove is 1 to 2 cm larger than the diameter of the germanium crystal.

[0010] Preferably, the arc diameter of the U-shaped groove is larger than the diameter of the germanium crystal by 1 cm.

[0011] Preferably, the thickness of the bottom of the U-shaped groove is 3 to 5 cm.

[0012] Preferably, the thickness of the bottom of the U-shaped groove is 5 cm.

[0013] Preferably, the length of the U-shaped groove is greater than the length of the germanium crystal.

[0014] Preferably, the U-shaped groove is connected to the bottom plate, specifically:

[0015] The bottom plate is rectangular, and the length of the bottom plate is longer than the length of the U-shaped groove;

[0016] The U-shaped groove is fixed on the bottom plate, and one end of the U-shaped groove is aligned with one end of the bottom plate.

[0017] Preferably, the U-shaped groove is connected to the bottom plate, specifically:

[0018] The bottom of the U-shaped groove is connected to the bottom plate by mortise and tenon joints.

[0019] Preferably, the material of the U-shaped groove is a material that is easy to cut.

[0020] It can be seen from the above technical solutions that the embodiments of the utility model have the following advantages:

[0021] The embodiment of the utility model provides a germanium crystal cutting and fixing device, comprising: a U-shaped groove and a bottom plate; the U-shaped groove is connected to the bottom plate, so that the U-shaped groove is fixed on the cutting device through the bottom plate; the depth of the U-shaped groove is 1 / 3 to 1 / 2 of the diameter of the germanium crystal, and the arc diameter of the U-shaped groove is larger than the diameter of the germanium crystal. The utility model sets a U-shaped groove with a depth of 1 / 3 to 1 / 2 of the diameter of the germanium crystal, and fixes the germanium crystal in the U-shaped groove by fitting the U-shaped groove with the germanium crystal. The entire fixing operation can be completed by a single person, the operation is simple, and loose flying pieces or sliding of the germanium crystal can be avoided when the germanium crystal is cut, thereby improving the qualified rate of the cut germanium crystal products and the safety of the cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 A schematic diagram of the structure of a germanium crystal cutting and fixing device provided in an embodiment of the utility model;

[0024] Figure 2 A cross-sectional view of a germanium crystal cutting and fixing device provided by an embodiment of the utility model;

[0025] Figure 3 A schematic diagram of the installation of a U-shaped groove and a bottom plate of a germanium crystal cutting and fixing device provided in an embodiment of the utility model.

[0026] In the figure, 1 is a crystal, 2 is a U-shaped groove, and 3 is a bottom plate. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0029] Unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0030] See also Figures 1-2 A germanium crystal cutting and fixing device provided by an embodiment of the utility model includes: a U-shaped groove 2 and a bottom plate 3, the U-shaped groove 2 is connected to the bottom plate 3, so that the U-shaped groove 2 is fixed on the cutting device through the bottom plate 3, the depth of the U-shaped groove 2 is 1 / 3 to 1 / 2 of the diameter of the germanium crystal 1, and the arc diameter of the U-shaped groove 2 is larger than the diameter of the germanium crystal 1.

[0031] In this embodiment, a cylindrical germanium crystal can be placed in the U-shaped groove, and the arc-shaped inner wall of the U-shaped groove is used to fit the germanium crystal to stably place the germanium crystal in the U-shaped groove, and the depth is set to 1 / 3 to 1 / 2 of the diameter of the germanium crystal to prevent the germanium crystal from slipping, while ensuring that the cut circular slices are easy to take out. Using the crystal cutting and fixing device of this embodiment, the entire fixing operation process can be completed by one person, the operation is simple, and loose flying slices or sliding of the germanium crystal can be avoided during cutting of the germanium crystal, thereby improving the qualified rate of the cut germanium crystal products and the safety of the cutting process.

[0032] The method of using the germanium crystal cutting and fixing device of this embodiment is: fix the bottom plate of the germanium crystal cutting and fixing device on the cutting device, then place the cylindrical germanium crystal into the U-shaped groove, and use a cutting machine to cut along the cross section of the U-shaped groove to form a millimeter-level germanium crystal wafer.

[0033] As a further improvement, the depth of the U-shaped groove 2 is 1 / 3 of the diameter of the germanium crystal 1. If the depth of the U-shaped groove is too shallow, the contact surface between the germanium crystal and the device is small, and the adhesion is not firm enough. If the depth of the U-shaped groove is too deep, the contact surface between the germanium crystal and the device is too large, and the crystal cannot be removed after cutting. The 1 / 3 groove line can be regarded as a positioning line to ensure that the crystal is adhered horizontally and the angle deviation is small when slicing.

[0034] As a further improvement, the arc diameter of the U-shaped groove 2 is 1 to 2 cm larger than the diameter of the germanium crystal 1. Since the size of the germanium crystal is slightly different, the arc diameter is slightly larger than the size of the germanium crystal, which can be applied to germanium crystals with a certain size deviation. If the size of the germanium crystal is too large, the bottom of the germanium crystal can be in contact with the bottom of the U groove, which is convenient for adjusting the level of the germanium crystal.

[0035] As a further improvement, the arc diameter of the U-shaped groove 2 is 1 cm larger than the diameter of the germanium crystal. Selecting the arc diameter of the U-shaped groove to be slightly larger than the size of the germanium crystal can make the germanium crystal fit better with the inner wall of the U-shaped groove.

[0036] As a further improvement, the thickness of the bottom of the U-shaped groove 2 is 3 to 5 cm. Since the germanium crystal sheet can only be cut out when the fixing device (i.e., the U-shaped groove) is cut during slicing, if the bottom of the groove is too thin, it is easy to be cut, and if the bottom of the groove is too thick, the manufacturing cost of the device will increase. This thickness can be reused at a reasonable cost.

[0037] As a further improvement, the thickness of the bottom of the U-shaped groove 2 is 5 cm, which can save the most cost and can be reused more times.

[0038] As a further improvement, the length of the U-shaped groove 2 is greater than the length of the germanium crystal 1. Since the germanium crystal is not a regular cylinder and the two ends of the germanium crystal are not flat cross-sections, the overall length of the germanium crystal is longer than the length of its cylindrical part. Setting the length of the U-shaped groove greater than the length of the germanium crystal can prevent the germanium crystal from affecting the fixation of the bottom plate and cutting device at the end of the U-shaped groove, and can also make the germanium crystal as a whole completely above the U-shaped groove, thereby improving the stability of the germanium crystal.

[0039] As a further improvement, the U-shaped groove 2 is connected to the bottom plate 3, specifically: the bottom plate 3 is rectangular, the length of the bottom plate 3 is longer than the length of the U-shaped groove; the U-shaped groove is fixed to the bottom plate, and one end of the U-shaped groove is aligned with one end of the bottom plate. The U-shaped groove is arranged on the bottom plate, which can avoid the U-shaped groove from breaking during cutting and extend the service life of the U-shaped groove. The U-shaped groove is arranged on the bottom plate as a whole, which can improve the stability of the entire germanium crystal cutting and fixing device.

[0040] See also Figures 2-3As a further improvement, the U-shaped groove 2 is connected to the bottom plate 3, specifically: the bottom of the U-shaped groove 2 is connected to the bottom plate 3 by mortise and tenon joints. Through the mortise and tenon joints between the bottom of the U-shaped groove and the bottom plate, on the one hand, when the U-shaped groove is cut and cannot be used, a new U-shaped groove can be directly replaced and inserted into the bottom plate, which is convenient to operate and can avoid wasting the bottom plate; on the other hand, the U-shaped groove of a suitable size can be replaced according to the size of the crystal, so that the germanium crystal cutting and fixing device has a wider applicability.

[0041] As a further improvement, the material of the U-shaped groove is a material that is easy to cut. Since the germanium crystal sheet can only be cut and taken out when the U-shaped groove is cut during slicing, the use of a material that is easy to cut is more conducive to the cutting of the germanium crystal. Specifically, the material of the U-shaped groove can be selected from but not limited to one of rubber, wood, and plastic.

[0042] The above is a detailed introduction to a germanium crystal cutting and fixing device provided by the present invention. For a person skilled in the art, according to the idea of ​​the embodiments of the present invention, there may be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A germanium crystal cutting and fixing device, characterized in that: include: U-shaped groove and bottom plate; The U-shaped groove is connected to the bottom plate so that the U-shaped groove is fixed to the cutting device through the bottom plate; The depth of the U-shaped groove is 1 / 3 to 1 / 2 of the diameter of the germanium crystal; The arc diameter of the U-shaped groove is larger than the diameter of the germanium crystal.

2. The germanium crystal cutting and fixing device according to claim 1, characterized in that: The depth of the U-shaped groove is 1 / 3 of the diameter of the germanium crystal.

3. The germanium crystal cutting and fixing device according to claim 1, characterized in that: The arc diameter of the U-shaped groove is 1 to 2 cm larger than the diameter of the germanium crystal.

4. The germanium crystal cutting and fixing device according to claim 3, characterized in that: The diameter of the cross section of the U-shaped groove is larger than the diameter of the germanium crystal by 1 cm.

5. The germanium crystal cutting and fixing device according to claim 1, characterized in that: The thickness of the bottom of the U-shaped groove is 3 to 5 cm.

6. The germanium crystal cutting and fixing device according to claim 5, characterized in that: The thickness of the bottom of the U-shaped groove is 5 cm.

7. The germanium crystal cutting and fixing device according to claim 1, characterized in that: The length of the U-shaped groove is greater than the length of the germanium crystal.

8. The germanium crystal cutting and fixing device according to claim 1, characterized in that: The U-shaped groove is connected to the bottom plate, specifically: The bottom plate is rectangular, and the length of the bottom plate is longer than the length of the U-shaped groove; The U-shaped groove is fixed on the bottom plate, and one end of the U-shaped groove is aligned with one end of the bottom plate.

9. The germanium crystal cutting and fixing device according to claim 1, characterized in that: The U-shaped groove is connected to the bottom plate, specifically: The bottom of the U-shaped groove is connected to the bottom plate by mortise and tenon joints.

10. The germanium crystal cutting and fixing device according to any one of claims 1 to 9, characterized in that: The material of the U-shaped groove is a material that is easy to cut.

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