Crystal bar locking device
By designing a crystal rod locking device including limiting parts, buffering springs and other components, the slice instability and hidden cracking caused by mushroom head wear in the prior art is solved, and a higher quality cutting effect and higher efficiency are achieved production process.
Patent Information
- Application Number
- CN202421089845.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-17
AI Technical Summary
The mushroom heads of the prior art wear severely after long-term use, resulting in the inability to accurately fit the crystal support, resulting in unstable slices and cracks in the crystal rods, and reducing product quality.
Design a crystal rod locking device, including a base plate, limiting part, limiting block, connecting screw, buffer spring and buffer flange. Through the coordination between limiting part and buffer spring, it avoids hard contact, provides a buffering effect, and ensures crystal Stable cutting of the rod.
It effectively avoids wear caused by hard contact, maintains the horizontal cutting pattern of the crystal rod, reduces the line breakage rate and hidden cracking risks, and improves the yield of the silicon wafer and the stability of the slicing process.
Smart Images
Figure CN222431217U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of single crystal transportation, in particular to a crystal rod locking device. Background Art
[0002] During the processing of the crystal rod in the slicer, the mushroom head plays a vital role, which can lift the crystal support so that it fits under the positioning table of the slicer to ensure accurate cutting of the crystal rod. However, the mushroom head of the prior art has some defects, which affects the effect and quality of slicing.
[0003] ①First, with long-term use, the contact surface of the mushroom head will gradually wear, causing the crystal holder to be unable to fit accurately under the positioning table, causing the entire crystal rod to shake when the slicer is running, seriously affecting the stability and accuracy of the slice.
[0004] ② Secondly, when the crystal holder contacts the positioning table, the contact force is directly transmitted to the crystal rod, which can easily cause hidden cracks inside the crystal rod, reducing the quality and utilization rate of the crystal rod. Utility Model Content
[0005] In view of the above problems, the utility model proposes a crystal rod locking device to solve the problems of serious wear of the mushroom head in the prior art, poor stability after the crystal support is attached, and easy breakage of the crystal rod; To achieve the above purpose, the utility model provides a crystal rod locking device, including a bottom plate, limit pieces are installed on both sides of the top of the bottom plate, and the bottom plate is movably connected to the limit block through the limit piece;
[0006] A connecting screw rod passes through the base plate, a buffer spring and a buffer flange, the buffer spring is located between the base plate and the buffer flange, the connecting screw rod is fixedly connected to the base plate, and the head of the connecting screw rod is clamped in the inner hole in the middle of the base plate.
[0007] Preferably, the end of the connecting screw is connected to a pull rod, and the pull rod is connected to an output end of a motor in the positioning platform.
[0008] Preferably, the limit block is slidably connected to a slide rail at the upper end of the crystal support.
[0009] Preferably, the number of the limiting members is 4, and two of them are connected in groups through the limiting blocks and threadedly connected in the bottom plate.
[0010] Preferably, a blind hole capable of accommodating a clamping spring is provided at the bottom of the limiting block and the top of the bottom plate, and the clamping spring is provided between two adjacent limiting members.
[0011] Preferably, the limiting member is a hexagon socket screw.
[0012] Preferably, the buffer flange is arranged between the slide rails; in a normal state, the vertical height of the buffer flange is higher than the slide rails.
[0013] Preferably, a groove is provided at the top of the buffer flange, and when the connecting screw and the pull rod are locked, the end of the pull rod is placed in the groove.
[0014] Preferably, a threaded hole is provided in the pull rod, and the threaded hole is threadedly connected to the connecting screw.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] The clamping method of single crystal silicon wafers provided by this patent during cutting can avoid the wear caused by long-term use of the hard contact method, and can keep the crystal rod in a horizontal cutting shape, reducing the wire breakage rate. At the same time, through the buffering effect at the clamping moment, compared with the existing hard contact method, it reduces the risk of hidden cracks in the crystal rod and improves the output yield of silicon wafers. While improving the crystal support, it reduces the impact on the inside of the crystal rod, ensuring the stability of the slicing process and high-quality cutting effects, and improving production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional structural diagram of the locking device.
[0018] Figure 2 This is a bottom structural diagram of the locking device.
[0019] Figure 3 This is a cross-sectional structural diagram of the locking device at BB.
[0020] Figure 4 This is a front structural diagram of the locking device.
[0021] Figure 5 It is a three-dimensional structural diagram of the locking device and the crystal holder in cooperation.
[0022] Figure 6 It is a side structural diagram of the locking device and the crystal holder in cooperation.
[0023] Figure 7 It is a three-dimensional structural diagram of the locking device running on the positioning table.
[0024] Figure 8 It is a cross-sectional structural diagram of the locking device running on the positioning table.
[0025] In the figure: 1. bottom plate; 2. limit piece; 3. limit block; 4. connecting screw; 5. buffer spring; 6. buffer flange; 7. inner hole; 8. positioning table; 9. motor; 10. crystal support; 11. slide rail; 12. clamping spring; 13. blind hole; 14. groove; 15. resin plate; 16. crystal rod; 17. flat plate; 18. pull rod; 19. threaded hole. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.
[0027] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", 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 or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following is an explanation of the embodiments of the present utility model based on the overall structure of the present utility model.
[0028] See also Figure 1-Figure 8 As shown, the utility model provides a crystal rod 16 locking device, including: Figure 1-Figure 4 As shown:
[0029] A bottom plate 1, with limit members 2 installed on both sides of the top of the bottom plate 1, and the bottom plate 1 is movably connected to the limit block 3 through the limit members 2;
[0030] The connecting screw 4 passes through the base plate 1, the buffer spring 5 and the buffer flange 6. The buffer spring 5 is located between the base plate 1 and the buffer flange 6. The connecting screw 4 is threadedly connected to the base plate 1, and the head of the connecting screw 4 is clamped in the inner hole 7 in the middle of the base plate 1.
[0031] See Figure 7-Figure 8 As shown, the pull rod 18 is connected to the output end of the motor 9 in the positioning platform 8, and the motor 9 drives the pull rod 18 to rotate. A threaded hole 19 is set in the pull rod 18, and the threaded hole 19 is threadedly connected to the connecting screw 4. During the rotation of the motor 9, the pull rod 18 rotates and cooperates with the connecting screw 4 to lift the crystal support 10.
[0032] See Figure 6-Figure 8 As shown, the crystal holder 10 is composed of a slide rail 11 and a flat plate 17. The slide rail 11 is located on the top of the flat plate 17 and is fixedly connected. The connection method can be welding or integrated casting.
[0033] See Figure 1-Figure 6 As shown, the limit block 3 is slidably connected to the slide rail 11 at the upper end of the crystal support 10, which is convenient for adjusting the position of the crystal support 10. The number of limit members 2 is 1, and two groups of two pass through the limit block 3 and are threadedly connected to the bottom plate 1. The limit members 2 can limit the rotation and movement direction of the limit block 3, so that the limit block 3 can operate accurately and stably. The limit member 2 is a hexagon socket screw, which can be completely placed in the limit block 3. Blind holes 13 that can accommodate clamping springs 12 are provided at the bottom of the limit block 3 and the top of the bottom plate 1 to limit the position of the clamping spring 12. The clamping spring 12 is set between two adjacent limit members 2.
[0034] See Figure 4-Figure 8 As shown, the buffer flange 6 is arranged between the slide rails 11; in a normal state, the vertical height of the buffer flange 6 is higher than the slide rails 11; in a clamped state, the buffer flange 6 can enter the interior along the gap between the slide rails 11 to avoid motion interference between the buffer flange 6 and the slide rails 11, thereby ensuring stable operation between the positioning table 8 and the crystal holder 10.
[0035] See Figure 1 , Figure 3-Figure 4 As shown, a groove 14 is provided on the top of the buffer flange 6 , and when the connecting screw 4 and the pull rod 18 are locked, the end of the pull rod 18 is placed in the groove 14 .
[0036] Working principle: multiple locking devices are slidably installed in the slide rail 11 of the crystal holder 10, and the bottom of the crystal holder 10 is fixedly connected to the resin plate 15, and the resin plate 15 is connected to the crystal holder 10. The pull rod 18 connected to the multiple motors 9 in the positioning platform 8 is connected to the corresponding connecting screw 4 of the locking device, and the motor 9 is started. Due to the limiting effect of the locking device in the slide rail 11, the pull rod 18 rotates to drive the connecting screw 4 to move upward, and the clamping spring 12 located between the limit block 3 and the base plate 1 is compressed to play a buffering role. After the end of the pull rod 18 contacts the groove 14 on the buffer flange 6, the connecting screw 4 continues to drive the crystal holder 10 to move upward, and the buffer spring 5 generates buffering compression until the lower surface of the fixed platform is close to the top of the slide rail 11, and the buffer spring 5 provides a buffering effect for the crystal holder 10 and the positioning platform 8. During the upward movement of the crystal holder 10, the bottom plate 1 is lifted upward to compress the clamping spring 12, and the limiter 2 moves upward along the limiter groove on the top of the limiter block 3. After the top surface of the slide rail 11 contacts the bottom surface of the fixed table, the connecting screw 4 continues to rise to continuously compress the clamping spring 12, and cooperates with the buffering effect of the buffer spring 5 to better avoid the rigid contact between the fixed table 8 and the slide rail 11. The release force of the rigid contact can be buffered by the buffer spring 5 and the clamping spring 12 to avoid hidden cracks inside the crystal rod 16. A limiter groove for installing the limiter 2 is provided in the limiter block 3. When the fixed table contacts the slide rail 11, there is still room for the limiter 2 to move in the limiter groove, and the clamping spring 12 still has compression space. The staff found that the motor 9 can be stopped after the fixed table contacts the slide rail 11.
[0037] The clamping method of the single crystal silicon wafer provided by this patent during cutting can avoid the wear caused by long-term use of the hard contact method, and can keep the crystal rod 16 in a horizontal cutting shape, reduce the wire breakage rate, and at the same time, through the buffering effect at the clamping moment, compared with the existing hard contact method, reduce the risk of hidden cracks in the crystal rod 16, improve the output yield of silicon wafers, and reduce the impact on the inside of the crystal rod 16 while improving the crystal support 10, thereby ensuring the stability of the slicing process and high-quality cutting effects, and improving production efficiency and product quality.
[0038] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.
Claims
1. A crystal rod locking device, characterized in that: include: A bottom plate (1), wherein limiting members (2) are installed on both sides of the top of the bottom plate (1), and the bottom plate (1) is movably connected to the limiting block (3) via the limiting members (2); A connecting screw (4), wherein the connecting screw (4) passes through a base plate (1), a buffer spring (5) and a buffer flange (6), wherein the buffer spring (5) is located between the base plate (1) and the buffer flange (6), the connecting screw (4) is fixedly connected to the base plate (1), and the head of the connecting screw (4) is clamped in an inner hole (7) in the middle of the base plate (1).
2. The crystal rod locking device according to claim 1, characterized in that: The end of the connecting screw rod (4) is connected to a pull rod (18), and the pull rod (18) is connected to the output end of the motor (9) in the positioning platform (8).
3. The crystal rod locking device according to claim 1, characterized in that: The limit block (3) is slidably connected to the slide rail (11) at the upper end of the crystal support (10).
4. The crystal rod locking device according to claim 1, characterized in that: The number of the limiting members (2) is four, and two of them are connected in groups through the limiting blocks (3) and are threadedly connected in the bottom plate (1).
5. The crystal rod locking device according to claim 4, characterized in that: The bottom of the limiting block (3) and the top of the bottom plate (1) are both provided with a blind hole (13) capable of accommodating a clamping spring (12), and the clamping spring (12) is arranged between two adjacent limiting members (2).
6. The crystal rod locking device according to claim 1, characterized in that: The limiting member (2) is a hexagon socket screw.
7. The crystal rod locking device according to claim 1, characterized in that: The buffer flange (6) is arranged between the slide rails (11); in a normal state, the vertical height of the buffer flange (6) is higher than that of the slide rails (11).
8. The crystal rod locking device according to claim 2, characterized in that: A groove (14) is provided at the top of the buffer flange (6), and when the connecting screw (4) and the pull rod (18) are locked, the end of the pull rod (18) is placed in the groove (14).
9. The crystal rod locking device according to claim 2, characterized in that: A threaded hole (19) is provided in the pull rod (18), and the threaded hole (19) is threadedly connected to the connecting screw rod (4).