A cutting support device for solving the problem of abnormal cutting of a cylindrical germanium single crystal

Abstract

The utility model discloses a kind of cutting support devices for solving cylindrical germanium single crystal truncation bevel and and collapse edge abnormality, including object table, first rod loading platform, second rod loading platform, positioning bolt, mounting seat, distance adjusting screw rod and baton box;Baton box, first rod loading platform, second rod loading platform and mounting seat are sequentially arranged on object table;Two ends of distance adjusting screw rod are rotatably connected on first rod loading platform and mounting seat respectively;Second rod loading platform bottom and object table surface sliding fit, distance adjusting screw rod passes through second rod loading platform, and is threadedly cooperated with second rod loading platform;There is cutting gap between baton box and first rod loading platform;First rod loading platform, second rod loading platform and baton box are respectively equipped with first transverse support hole, second transverse support hole and third transverse support hole arranged with coaxial heart, and bottom in baton box is equipped with elastic layer.The above-mentioned device effectively solves the problems such as bevel and collapse edge in the cutting process of germanium single crystal, reduces scrap, improves cutting efficiency, and has simple and stable structure.

Description

Technical Field

[0001] This utility model relates to a cutting support device for solving the problem of abnormal edge chipping and sloping of cylindrical germanium single crystal truncated surfaces, belonging to the field of germanium single crystal truncated processing technology. Background Technology

[0002] With the continuous development of technology, the requirements for germanium semiconductor cutting technology are becoming increasingly stringent. Existing cutting machines for germanium round bars use a plastic clamping device for fixation, resulting in semi-automatic cutting. Each cut bar has a bevel of approximately 10-12 mm and chipping of 9-10 mm. Occasionally, entire bars (each 250 mm long) are scrapped. The main reason is significant shaking during cutting, leading to substantial daily losses of finished germanium bars. Furthermore, the bevel and chipping severely affect slicing performance. Therefore, this application provides a cutting support device to address the abnormal bevel and chipping issues in cylindrical germanium single crystal cutting, reducing these problems, ensuring slicing quality, improving germanium utilization, and reducing losses. Utility Model Content

[0003] To address the issues of bevels and edge chipping during the cutting of germanium single crystals and reduce scrap, this invention provides a cutting support device that solves the problems of bevels and edge chipping in the cutting of cylindrical germanium single crystals. The device has a simple and stable structure.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A cutting support device for solving the abnormality of truncated bevel and edge chipping of cylindrical germanium single crystals, comprising a stage, a first rod stage, a second rod stage, positioning bolts, a mounting base, an adjusting screw, and a connecting rod box;

[0006] The receiving box, the first rod carrier, the second rod carrier, and the mounting base are sequentially arranged on the platform;

[0007] The first rod carrier is provided with a first mounting hole, and the mounting base is provided with a second mounting hole; the two ends of the adjusting screw are respectively rotatably connected to the first mounting hole and the second mounting hole;

[0008] The second rod carrier is provided with a drive through hole. The bottom of the second rod carrier slides with the surface of the stage. The adjusting screw passes through the drive through hole on the second rod carrier and is threaded with the drive through hole. The adjusting screw rotates and drives the second rod carrier to slide on the surface of the stage, thereby adjusting the gap between the first rod carrier and the second rod carrier. A cutting gap is left between the receiving box and the first rod carrier.

[0009] The first rod carrier platform is provided with a first transverse support hole, which is located above the first mounting hole; the second rod carrier platform is provided with a second transverse support hole, which is located above the drive through hole; the positioning bolt is threaded to the top of the second rod carrier platform and can extend into the second transverse support hole; the side wall of the receiving box adjacent to the first rod carrier platform is provided with a third transverse support hole, and the first transverse support hole, the second transverse support hole and the third transverse support hole are coaxially arranged, and an elastic layer is provided at the bottom of the receiving box.

[0010] When using it, the following steps are included:

[0011] 1) Support the germanium single crystal rod simultaneously on the first lateral support hole and the second lateral support hole, with the head of the germanium single crystal rod pointing towards the receiving box. Adjust the positioning bolt to fix the tail of the single crystal. The germanium single crystal rod is supported on the first lateral support hole, but can slide inside the first lateral support hole.

[0012] 2) Rotate the adjusting screw to move the second rod stage with the germanium single crystal rod towards the receiving box until the cutting point reaches the cutting gap. At this time, the germanium single crystal rod is supported on the first lateral support hole, the second lateral support hole and the third lateral support hole to achieve stable support for the germanium single crystal rod. The cutter extends into the cutting gap between the receiving box and the first rod stage to cut. The cut germanium single crystal falls on the elastic layer inside the receiving box. Remove the germanium single crystal from the receiving box.

[0013] 3) Repeat step 2) until the entire germanium single crystal rod is cut.

[0014] During use, the positions of the receiving box, the first rod carrier, and the mounting base on the platform are all fixed. The second rod carrier can slide on the surface of the platform under the drive of the adjusting screw to adjust the cutting length.

[0015] The above-mentioned device can effectively solve the problems of truncated bevels and edge chipping in cylindrical germanium single crystals, and significantly reduce material product losses.

[0016] The size of the cutting gap does not need to be too large (much smaller than the single-segment cutting length of germanium single crystal), as long as it ensures that the cutter can smoothly extend into the gap to complete the cutting and smoothly retract.

[0017] For ease of use and control, the end of the adjusting screw connected to the mounting base passes through the mounting base and connects to the motor, which drives its rotation. The motor can be a geared motor or a low-speed direct-drive motor. By using the motor in conjunction with a slow-speed motor, a cutting length accuracy of ±0.5mm can be achieved. Both the adjusting precision screw and the motor are commercially available products.

[0018] To facilitate installation and use, and to ensure stability during use, the two ends of the adjusting screw are rotatably connected to the first mounting hole and the second mounting hole via bearings, respectively.

[0019] To facilitate the disassembly and replacement of single crystal rods, as a preferred embodiment, the first rod carrier is formed by splicing a first download rod carrier and a first upper rod carrier. The first download rod carrier is connected to the carrier platform, and the first mounting hole is located on the first download rod carrier. The top of the first download rod carrier is provided with a first lower half horizontal support hole, and the bottom of the first upper rod carrier is provided with a first upper half horizontal support hole. The first lower half horizontal support hole and the first upper half horizontal support hole are spliced ​​together to form a circular first horizontal support hole. The first download rod carrier and the first upper rod carrier are connected on one side by a hinge structure and on the other side by a snap-fit ​​connection.

[0020] To facilitate the disassembly and replacement of single crystal rods, as a preferred embodiment, the second rod carrier stage is formed by splicing a second lower rod carrier stage and a second upper rod carrier stage. The bottom of the second lower rod carrier stage slides on the surface of the stage, and a drive through hole is provided on the second lower rod carrier stage. The top of the second lower rod carrier stage is provided with a second lower half transverse support hole, and the bottom of the second upper rod carrier stage is provided with a second upper half transverse support hole. The second lower half transverse support hole and the second upper half transverse support hole are spliced ​​together to form a circular second transverse support hole. The positioning bolt is threaded to the top of the second upper rod carrier stage, and the bottom of the positioning bolt can extend into the second transverse support hole. The first lower rod carrier stage and the first upper rod carrier stage are connected on one side by a hinge structure and on the other side by a snap-fit ​​connection.

[0021] The second stage is equipped with positioning bolts, which can improve the stability of positioning the germanium single crystal segment and ensure that the segment does not shift when the slow motor drives the adjusting screw to adjust the cut germanium single crystal segment.

[0022] Both the first and second rod carriers mentioned above adopt a hinge and snap-fit ​​splicing structure to achieve rapid assembly and disassembly of germanium single crystal rods.

[0023] To facilitate the disassembly and replacement of single crystal rods, as one preferred embodiment, the aforementioned rod receiving box includes an upper box and a lower box. The lower box is connected to the stage and has an elastic layer inside. The top of the side wall of the lower box adjacent to the first stage has a third lower half-lateral support hole, and the bottom of the side wall of the upper box adjacent to the first stage has a third upper half-lateral support hole. The third lower half-lateral support hole and the third upper half-lateral support hole are joined together to form a circular third lateral support hole. The upper box and the lower box are connected on one side by a hinge structure and on the other side by a snap-fit ​​connection.

[0024] The aforementioned junction box is padded with soft cushioning material and uses hinges and snaps to enable quick assembly and disassembly.

[0025] For ease of use, the above mounting base is a bearing housing.

[0026] The aforementioned stage is rectangular, and the connecting rod box, the first rod carrier, the second rod carrier, and the mounting base are sequentially arranged on the stage along its length.

[0027] To improve practical adaptability, a fourth lateral support hole is provided on the side wall of the receiving box opposite to the first rod carrier. The first, second, third, and fourth lateral support holes are all coaxially arranged. When the segment to be cut is long, the third and fourth lateral support holes can jointly support the single crystal segment during and after cutting. After cutting, the single crystal segment can be directly removed through the fourth lateral support hole, which is simple and convenient.

[0028] To improve practical stability and reduce manufacturing costs, the top of the stage is provided with an inverted trapezoidal protrusion (larger at the top and smaller at the bottom) along its length. The bottom of the first rod carrier is provided with a first slot that matches the cross-section of the inverted trapezoidal protrusion. The first slot engages with the inverted trapezoidal protrusion and is fixed by bolts or adhesive. The bottom of the second rod carrier is provided with a second slot that matches the cross-section of the inverted trapezoidal protrusion. The second slot slides on the inverted trapezoidal protrusion, allowing the second rod carrier to slide along the length of the inverted trapezoidal protrusion.

[0029] To improve the stability of the connector box, a third slot is provided at the bottom of the connector box, which matches the cross-section of the inverted trapezoidal protrusion. The connector box engages with the inverted trapezoidal protrusion through the third slot, facilitating disassembly and replacement. If the connector box shifts during use, it can be connected to the inverted trapezoidal protrusion using adhesive or other methods. The mounting base is installed on the inverted trapezoidal protrusion with bolts.

[0030] Any technologies not mentioned in this utility model are based on existing technologies.

[0031] This invention provides a cutting support device for addressing the issues of beveled cut surfaces and edge chipping in cylindrical germanium single crystals. It provides stable support for the germanium single crystal segment during cutting and allows for precise control of the cutting length. The beveled cut surface control accuracy is within 2 micrometers, and the cutting length is precisely controlled. Simultaneously, edge chipping losses are reduced to less than 1 mm per crystal, minimizing material loss, improving slice quality, and increasing cutting efficiency. Attached Figure Description

[0032] Figure 1 This utility model provides a three-dimensional cutting support device for solving the problems of abnormal edge chipping and slant cutting of cylindrical germanium single crystals. Figure 1 ;

[0033] Figure 2 This utility model provides a three-dimensional cutting support device for solving the problems of abnormal edge chipping and slant cutting of cylindrical germanium single crystals. Figure 2 ;

[0034] Figure 3This utility model provides a cutting support device for solving the problems of abnormal edge chipping and slant cutting of cylindrical germanium single crystals. Figure 1 ;

[0035] Figure 4 This utility model provides a cutting support device for solving the problems of abnormal edge chipping and slant cutting of cylindrical germanium single crystals. Figure 2 ;

[0036] Figure 5 This utility model provides a cutting support device for solving the problems of abnormal edge chipping and slant cutting of cylindrical germanium single crystals. Figure 3 ;

[0037] Figure 6 This utility model provides a cutting support device for solving the problems of abnormal edge chipping and slant cutting of cylindrical germanium single crystals. Figure 4 ;

[0038] Figure 7 This utility model provides a cutting support device for solving the problems of abnormal edge chipping and slant cutting of cylindrical germanium single crystals. Figure 5 ;

[0039] Figure 8 This utility model provides a cutting support device for solving the problems of abnormal edge chipping and slant cutting of cylindrical germanium single crystals. Figure 6 ;

[0040] In the diagram, 1 is the platform, 11 is the inverted trapezoidal protrusion, 2 is the first rod carrier platform, 21 is the first transverse support hole, 22 is the first lowering rod platform, 23 is the first upper loading rod platform, 3 is the second rod carrier platform, 31 is the second transverse support hole, 32 is the second lowering rod platform, 33 is the second upper loading rod platform, 4 is the positioning bolt, 5 is the mounting base, 6 is the adjusting screw, 7 is the rod receiving box, 71 has the third transverse support hole, 72 has the fourth transverse support hole, 73 is the upper box body, 74 is the lower box body, 8 is the hinge, 9 is the buckle, a is the head, b is the middle section-1, c is the middle section-2, d is the middle section-3, e is the middle section-4, and f is the tail. Detailed Implementation

[0041] To better understand this utility model, the following embodiments further illustrate the content of this utility model, but the content of this utility model is not limited to the following embodiments.

[0042] The directional terms used in this application, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," are based on the orientation or positional relationship shown in the accompanying drawings or in the usage state, and are only for the convenience of describing this application. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application.

[0043] In each diagram, the drive motor that drives the adjustable lead screw to rotate is omitted.

[0044] Example 1

[0045] like Figure 1-2 As shown, a cutting support device for solving the abnormality of the truncated bevel and edge chipping of cylindrical germanium single crystals includes a stage, a first rod stage, a second rod stage, positioning bolts, a mounting base, an adjusting screw, and a connecting rod box.

[0046] The receiving box, the first rod carrier, the second rod carrier, and the mounting base are sequentially arranged on the platform;

[0047] The first rod carrier is provided with a first mounting hole, and the mounting base is provided with a second mounting hole; the two ends of the adjusting screw are respectively rotatably connected to the first mounting hole and the second mounting hole;

[0048] The second rod carrier is provided with a drive through hole. The bottom of the second rod carrier slides with the surface of the stage. The adjusting screw passes through the drive through hole on the second rod carrier and is threaded with the drive through hole. The adjusting screw rotates and drives the second rod carrier to slide on the surface of the stage, thereby adjusting the gap between the first rod carrier and the second rod carrier. A cutting gap is left between the receiving box and the first rod carrier.

[0049] The first rod carrier platform is provided with a first transverse support hole, which is located above the first mounting hole; the second rod carrier platform is provided with a second transverse support hole, which is located above the drive through hole; the positioning bolt is threaded to the top of the second rod carrier platform and can extend into the second transverse support hole; the side wall of the receiving box adjacent to the first rod carrier platform is provided with a third transverse support hole, and the first transverse support hole, the second transverse support hole and the third transverse support hole are coaxially arranged, and an elastic layer is provided at the bottom of the receiving box.

[0050] When using it, the following steps are included:

[0051] 1) Support the germanium single crystal rod simultaneously on the first lateral support hole and the second lateral support hole, with the head of the germanium single crystal rod pointing towards the receiving box. Adjust the positioning bolt to fix the tail of the single crystal. The germanium single crystal rod is supported on the first lateral support hole, but can slide inside the first lateral support hole.

[0052] 2) Rotate the adjusting screw to move the second rod stage with the germanium single crystal rod towards the receiving box until the cutting point reaches the cutting gap. At this time, the germanium single crystal rod is supported on the first lateral support hole, the second lateral support hole and the third lateral support hole to achieve stable support for the germanium single crystal rod. The cutter extends into the cutting gap between the receiving box and the first rod stage to cut. The cut germanium single crystal falls on the elastic layer inside the receiving box. Remove the germanium single crystal from the receiving box.

[0053] 3) Repeat step 2) until the entire germanium single crystal rod is cut.

[0054] The above-mentioned device can effectively solve the problems of truncated bevels and edge chipping in cylindrical germanium single crystals, and significantly reduce material product losses.

[0055] Example 2

[0056] Based on Example 1, the following improvements were made: For ease of use and control, one end of the adjusting screw connected to the mounting base passes through the mounting base and is connected to the motor, and is driven to rotate by the motor.

[0057] Example 3

[0058] Based on Example 2, the following improvements were made: Figure 1-2As shown, to facilitate the disassembly and replacement of single crystal rods, the first rod carrier is formed by splicing a first download rod carrier and a first upper rod carrier. The first download rod carrier is connected to the carrier platform, and the first mounting hole is located on the first download rod carrier. The top of the first download rod carrier is provided with a first lower half horizontal support hole, and the bottom of the first upper rod carrier is provided with a first upper half horizontal support hole. The first lower half horizontal support hole and the first upper half horizontal support hole are spliced ​​together to form a circular first horizontal support hole. The first download rod carrier and the first upper rod carrier are connected on one side by a hinge structure and on the other side by a snap-fit ​​connection. The second loading platform is formed by splicing the second lower loading platform and the second upper loading platform. The bottom of the second lower loading platform slides on the surface of the loading stage, and the driving through hole is provided on the second lower loading platform. The top of the second lower loading platform is provided with a second lower half transverse support hole, and the bottom of the second upper loading platform is provided with a second upper half transverse support hole. The second lower half transverse support hole and the second upper half transverse support hole are spliced ​​together to form a circular second transverse support hole. The positioning bolt is threaded to the top of the second upper loading platform, and the bottom of the positioning bolt can extend into the second transverse support hole. The first lower loading platform and the first upper loading platform are connected on one side by a hinge structure and on the other side by a snap-fit ​​connection. The receiving box includes an upper box and a lower box. The lower box is connected to the platform and has an elastic layer inside. The top of the side wall of the lower box adjacent to the first platform has a third lower half horizontal support hole, and the bottom of the side wall of the upper box adjacent to the first platform has a third upper half horizontal support hole. The third lower half horizontal support hole and the third upper half horizontal support hole are aligned and connected to form a circular third horizontal support hole. The upper box and the lower box are connected on one side by a hinge structure and on the other side by a snap fastener.

[0059] Example 4

[0060] Based on Example 3, the following improvements were made: To facilitate installation and use, and to ensure stability during use, the two ends of the adjusting screw are rotatably connected to the first mounting hole and the second mounting hole via bearings, respectively. For ease of use, the mounting base is a bearing seat. In this example, the cutting gap width (the distance between the receiving box and the first rod carrier) is 2 cm.

[0061] Example 5

[0062] Based on Example 4, the following improvements were made: Figure 1 As shown, the stage is rectangular, and the connecting rod box, the first rod carrier, the second rod carrier, and the mounting base are arranged sequentially on the stage along its length.

[0063] Example 5

[0064] Based on Example 4, the following improvements were made: Figure 4As shown, to improve practical adaptability, a fourth lateral support hole (formed by splicing a fourth upper half lateral support hole on the upper box and a fourth lower half lateral support hole on the lower box) is provided on the side wall of the receiving box opposite to the first receiving stage. The first, second, third, and fourth lateral support holes are all coaxially arranged. When the segment to be cut is long, the third and fourth lateral support holes can jointly support the single crystal segment during and after cutting. After cutting, the single crystal segment can be directly removed from the fourth lateral support hole, which is simple and convenient.

[0065] Example 6

[0066] Based on Example 5, the following improvements were further made: Figure 1-2 As shown, to improve practical stability and reduce manufacturing costs, the top of the stage is provided with an inverted trapezoidal protrusion (larger at the top and smaller at the bottom) extending along its length. The bottom of the first loading rod stage has a first slot that matches the cross-section of the inverted trapezoidal protrusion. The first slot engages with the inverted trapezoidal protrusion and is fixed with bolts or adhesive. The bottom of the second loading rod stage has a second slot that matches the cross-section of the inverted trapezoidal protrusion. The second slot slides on the inverted trapezoidal protrusion, allowing the second loading rod stage to slide along the length of the inverted trapezoidal protrusion. To improve the stability of the receiving rod box, the bottom of the lower box has a third slot that matches the cross-section of the inverted trapezoidal protrusion. The receiving rod box engages with the inverted trapezoidal protrusion via the third slot, facilitating disassembly and replacement. The mounting base is installed on the inverted trapezoidal protrusion with bolts.

[0067] When using, such as Figure 3-8 As shown, it includes the following steps:

[0068] 1) such as Figure 3 As shown, open the first and second loading rod platforms, and simultaneously support the germanium single crystal rod on the first and second lower half horizontal support holes, with the head of the germanium single crystal rod pointing towards the receiving box. Close the first and second loading rod platforms and fasten the corresponding buckles. Adjust the positioning bolts to fix the tail of the single crystal. The germanium single crystal rod is supported on the first horizontal support hole, but can slide inside the first horizontal support hole.

[0069] 2) such as Figure 4 As shown, the motor drives the adjustable screw to rotate, causing the second rod carrier to move the germanium single crystal rod towards the receiving box. The head cutting length is adjusted until the cutting point reaches the cutting gap. At this time, the germanium single crystal rod is simultaneously supported on the first horizontal support hole, the second horizontal support hole, and the third horizontal support hole to achieve stable support for the germanium single crystal rod. The cutter extends into the cutting gap between the receiving box and the first rod carrier to cut. The cut head a falls on the elastic layer inside the receiving box. The upper box is opened, and the head a section of germanium single crystal is taken out from the receiving box and marked.

[0070] 3) such as Figure 5-8 As shown, repeat step 2) to obtain the germanium single crystals in the following order: middle segment-1 (b), middle segment-2 (c), middle segment-3 (d), middle segment-4 (e), and tail segment (f). Mark each segment with a label. After one germanium single crystal rod is cut, the adjusting screw is driven by a slow motor to return the second rod stage to its initial position, and the next crystal rod is cut.

[0071] Cutting 20 germanium single crystal rods using the above method, the cutting bevel control precision is within 2 mils, the abnormal edge breakage loss is reduced to less than 1mm / rod, and the cutting length can be precisely controlled (within ±0.5mm). The pass rate reaches 100%, reducing material loss, improving the slice quality, and increasing the cutting efficiency. After using this device, the company saves 600,000 yuan / year in loss costs.

[0072] During cutting, synthetic esters (ExxonMobil, Esterex™ Adipate, API Group V synthetic esters) are added as a lubricant and heat dissipation medium. The medium composition (0.5‰ water) assists the diamond wire in accelerating the cutting process. Without the addition of synthetic esters, the cutting speed is 1 mm / min. After adding synthetic esters, the cutting speed increases to 2 mm / min, doubling the cutting efficiency.

Claims

1. A cutting support device for solving the problems of abnormal truncated bevels and edge chipping on cylindrical germanium single crystals, characterized in that: The platform, the first rod carrier platform, the second rod carrier platform, the positioning bolts, the mounting base, the adjusting screw, and the connecting rod box; The receiving box, the first rod carrier, the second rod carrier, and the mounting base are sequentially arranged on the platform; The first rod carrier is provided with a first mounting hole, and the mounting base is provided with a second mounting hole; the two ends of the adjusting screw are respectively rotatably connected to the first mounting hole and the second mounting hole; The second rod carrier is provided with a drive through hole. The bottom of the second rod carrier slides with the surface of the stage. The adjusting screw passes through the drive through hole on the second rod carrier and is threaded with the drive through hole. The adjusting screw rotates and drives the second rod carrier to slide on the surface of the stage, thereby adjusting the gap between the first rod carrier and the second rod carrier. A cutting gap is left between the receiving box and the first rod carrier. The first rod carrier platform is provided with a first transverse support hole, which is located above the first mounting hole; the second rod carrier platform is provided with a second transverse support hole, which is located above the drive through hole; the positioning bolt is threaded to the top of the second rod carrier platform and can extend into the second transverse support hole; the side wall of the receiving box adjacent to the first rod carrier platform is provided with a third transverse support hole, and the first transverse support hole, the second transverse support hole and the third transverse support hole are coaxially arranged, and an elastic layer is provided at the bottom of the receiving box.

2. The cutting support device for solving the abnormality of the truncated bevel and edge chipping of cylindrical germanium single crystals according to claim 1, characterized in that: One end of the adjusting screw is connected to the mounting base and passes through the mounting base to connect to the motor, which drives the screw to rotate.

3. The cutting support device for solving the abnormality of the truncated bevel and edge chipping of cylindrical germanium single crystals according to claim 1 or 2, characterized in that: The first loading platform is formed by splicing a first downloading platform and a first loading platform. The first downloading platform is connected to the loading platform, and the first mounting hole is located on the first downloading platform. The top of the first downloading platform is provided with a first lower half horizontal support hole, and the bottom of the first loading platform is provided with a first upper half horizontal support hole. The first lower half horizontal support hole and the first upper half horizontal support hole are spliced ​​together to form a circular first horizontal support hole. The first downloading platform and the first loading platform are connected on one side by a hinge structure and on the other side by a snap-fit ​​connection.

4. The cutting support device for solving the abnormality of the truncated bevel and edge chipping of cylindrical germanium single crystals according to claim 1 or 2, characterized in that: The second loading platform is formed by splicing the second lower loading platform and the second upper loading platform. The bottom of the second lower loading platform slides on the surface of the loading stage, and the driving through hole is provided on the second lower loading platform. The top of the second lower loading platform is provided with a second lower half transverse support hole, and the bottom of the second upper loading platform is provided with a second upper half transverse support hole. The second lower half transverse support hole and the second upper half transverse support hole are spliced ​​together to form a circular second transverse support hole. The positioning bolt is threaded to the top of the second upper loading platform, and the bottom of the positioning bolt can extend into the second transverse support hole. The first lower loading platform and the first upper loading platform are connected on one side by a hinge structure and on the other side by a snap-fit ​​connection.

5. The cutting support device for solving the abnormality of the truncated bevel and edge chipping of cylindrical germanium single crystals according to claim 1 or 2, characterized in that: The receiving box includes an upper box and a lower box. The lower box is connected to the platform and has an elastic layer inside. The top of the side wall of the lower box adjacent to the first platform has a third lower half horizontal support hole, and the bottom of the side wall of the upper box adjacent to the first platform has a third upper half horizontal support hole. The third lower half horizontal support hole and the third upper half horizontal support hole are aligned and connected to form a circular third horizontal support hole. The upper box and the lower box are connected on one side by a hinge structure and on the other side by a snap fastener.

6. The cutting support device for solving the abnormality of the truncated bevel and edge chipping of cylindrical germanium single crystals according to claim 1 or 2, characterized in that: The two ends of the adjusting screw are rotatably connected to the first mounting hole and the second mounting hole via bearings, respectively.

7. The cutting support device for solving the abnormality of the truncated bevel and edge chipping of cylindrical germanium single crystals according to claim 1 or 2, characterized in that: The mounting base is a bearing housing.

8. The cutting support device for solving the abnormality of the truncated bevel and edge chipping of cylindrical germanium single crystals according to claim 1 or 2, characterized in that: The stage is rectangular, and the connecting rod box, the first connecting rod platform, the second connecting rod platform and the mounting base are arranged sequentially on the stage along the length of the stage; the connecting rod box is provided with a fourth transverse support hole on the side wall of the connecting rod box opposite to the first connecting rod platform, and the first transverse support hole, the second transverse support hole, the third transverse support hole and the fourth transverse support hole are all coaxially arranged.

9. The cutting support device for solving the abnormality of the truncated bevel and edge chipping of cylindrical germanium single crystals according to claim 1 or 2, characterized in that: The top of the stage is provided with an inverted trapezoidal protrusion along its length. The bottom of the first rod carrier is provided with a first slot that matches the cross-section of the inverted trapezoidal protrusion. The first slot engages with the inverted trapezoidal protrusion and is fixed by bolts or adhesive. The bottom of the second rod carrier is provided with a second slot that matches the cross-section of the inverted trapezoidal protrusion. The second slot slides on the inverted trapezoidal protrusion, allowing the second rod carrier to slide along the length of the inverted trapezoidal protrusion.

10. The cutting support device for solving the abnormality of the truncated bevel and edge chipping of cylindrical germanium single crystals according to claim 9, characterized in that: The bottom of the connecting rod box is provided with a third slot that matches the cross-section of the inverted trapezoidal protrusion. The connecting rod box is engaged with the inverted trapezoidal protrusion through the third slot; the mounting base is installed on the inverted trapezoidal protrusion by bolts.

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