Positioning assembly for crystal bar

Abstract

The utility model relates to a positioning assembly for a crystal bar. The positioning assembly comprises a mounting base and a pressing structure. The mounting base is provided with a containing groove. The containing groove is used for containing a crystal bar. At least part of the inner wall face of the containing groove is attached to the peripheral wall of the crystal bar. The pressing structure comprises a pressing piece and a locking piece. The pressing piece is connected to the mounting base through the locking piece so that the crystal bar can be clamped between the pressing piece and the mounting base. The pressing piece is provided with an inwards-concave pressing groove. At least part of the inner wall face of the pressing groove is attached to the peripheral wall of the crystal bar. According to the crystal bar clamping device, the inwards-concave pressing groove is formed in the pressing piece, so that the force application point or the force application area of the crystal bar can be increased, and the crystal bar can be clamped more stably. The positioning assembly is simple in structure, convenient and reliable positioning operation can be achieved, and the problems that in the related technology, a positioning assembly is complex in structure, and positioning operation is tedious are solved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of semiconductor material processing, and in particular, to a positioning assembly for a crystal rod. Background Art

[0002] During the processing of semiconductor materials, the crystal rod will generally undergo Notch processing after the orientation and outer cylindrical surface grinding are completed. The Notch can be used as a crystal orientation mark to accurately identify the crystal orientation of the crystal rod. Single crystals have anisotropic properties, and the accuracy of Notch positioning directly affects the subsequent processing yield and the performance of the final product. Therefore, the positioning operation of the Notch on the crystal rod before processing is particularly important. In the related art, the positioning assembly for the crystal rod is complex in structure and the positioning operation is relatively cumbersome. Therefore, it is urgent to provide a new positioning assembly for the crystal rod to conveniently and reliably realize the positioning operation of the crystal rod. Utility Model Content

[0003] The purpose of the present disclosure is to provide a positioning assembly for a crystal rod, so that the crystal rod can be conveniently and relatively reliably positioned by the positioning assembly before processing the Notch groove, so as to at least partially solve the related technical problems.

[0004] In order to achieve the above-mentioned object, the present disclosure provides a positioning assembly for a crystal rod. The positioning assembly comprises:

[0005] A mounting base having a receiving groove, wherein the receiving groove is used to place the crystal rod, and at least a portion of the inner wall surface of the receiving groove is in contact with the outer peripheral wall of the crystal rod; and

[0006] The clamping structure includes a clamping member and a locking member, wherein the clamping member is connected to the mounting base through the locking member to clamp the crystal rod between the clamping member and the mounting base, and the clamping member has an inwardly concave clamping groove, and at least part of the inner wall surface of the clamping groove is in contact with the outer peripheral wall of the crystal rod.

[0007] Optionally, the clamping member includes a clamping plate, the clamping groove is formed on the clamping plate, the clamping plate is placed parallel to the axial direction of the crystal rod, and the clamping plate is connected to the mounting base through two locking members, and the two locking members are respectively located at both ends of the axial direction of the crystal rod.

[0008] Optionally, there are two groups of the clamping structures, and the two clamping plates of the two groups of the clamping structures are arranged at intervals along the circumference of the crystal rod to reserve processing space between the two clamping plates, and the two locking pieces of the two clamping plates at the same axial end of the crystal rod are cross-arranged.

[0009] Optionally, the inner wall surface of the accommodating groove includes a first wall surface and a second wall surface that are oppositely arranged, the first wall surface and the second wall surface are symmetrically arranged with respect to the vertical direction and extend obliquely away from each other from bottom to top, the crystal rod is located between the first wall surface and the second wall surface, and the locking piece of one of the clamping structures is connected to the first wall surface, and the locking piece of the other clamping structure is connected to the second wall surface.

[0010] Optionally, the locking member includes a locking rod and a locking nut, the first wall surface and the second wall surface are both provided with threaded holes threadedly connected to the locking rod, the clamping plate is provided with a mounting hole, one end of the locking rod is connected to the threaded hole, and the other end passes through the mounting hole and is connected to the locking nut.

[0011] Optionally, a protective layer is provided between the accommodating groove and the crystal rod, and between the pressing groove or the pressing member and the crystal rod.

[0012] Optionally, the protective layer is a polishing cloth.

[0013] Optionally, the inner wall surface of the pressing groove includes a first pressing surface and a second pressing surface opposite to each other, and the angle between the first pressing surface and the second pressing surface is an obtuse angle.

[0014] Optionally, an angle between the first pressing surface and the second pressing surface is 120°.

[0015] Optionally, the mounting base includes a first outer surface and a second outer surface which are away from each other, the first outer surface is provided with a first conveying groove, and the second outer surface is provided with a second conveying groove.

[0016] Through the above technical solution, a positioning assembly for a crystal rod is provided. The positioning assembly includes a mounting base and a clamping structure. When in use, the crystal rod can be first placed in the receiving groove of the mounting base, and then the crystal rod can be clamped between the clamping member and the mounting base by the locking member of the clamping structure to achieve the positioning operation of the crystal rod before processing the Notch groove. Among them, by providing an inwardly concave clamping groove on the clamping member, the force application point or force application area on the crystal rod can be increased to clamp the crystal rod more firmly. The positioning assembly provided by the present invention has a simple structure and can achieve convenient and relatively reliable positioning operations, avoiding the problems of complex positioning assembly structures and cumbersome positioning operations in related technologies.

[0017] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0019] Figure 1 is a front view of a positioning assembly provided according to an embodiment of the present disclosure;

[0020] Figure 2 is a top view of a positioning assembly provided according to an embodiment of the present disclosure.

[0021] Description of Reference Numerals

[0022] 100, positioning assembly; 200, crystal rod; 201, Notch slot;

[0023] 1. Mounting base; 11. Accommodating groove; 111. First wall surface; 112. Second wall surface; 12. First outer surface; 13. Second outer surface; 14. First transport groove; 15. Second transport groove;

[0024] 2. Clamping structure; 21. Clamping member; 211. Clamping plate; 212. Clamping groove; 212a. First clamping surface; 212b. Second clamping surface; 22. Locking member; 221. Locking rod; 222. Locking nut; 23. Processing space;

[0025] 3. Protective layer. DETAILED DESCRIPTION

[0026] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0027] In the present disclosure, unless otherwise stated, "inside" and "outside" refer to the inside and outside of the corresponding component contour; in addition, it should be noted that the terms used, such as "first" and "second", are used to distinguish one element from another element. Figure 2 The directions indicated by the X and Y arrows are the axial directions of the crystal rod 200 .

[0028] According to one aspect of the present disclosure, Figure 1 and Figure 2As shown, a positioning assembly 100 for a crystal rod 200 is provided. The positioning assembly 100 may include a mounting base 1 and a clamping structure 2. The mounting base 1 has a receiving groove 11. The receiving groove 11 is used to place the crystal rod 200. At least part of the inner wall surface of the receiving groove 11 is in contact with the outer peripheral wall of the crystal rod 200. When in use, the clamping member 21 can be connected to the mounting base 1 through a locking member 22 to clamp the crystal rod 200 between the clamping member 21 and the mounting base 1. The clamping member 21 has a concave clamping groove 212. At least part of the inner wall surface of the clamping groove 212 is in contact with the outer peripheral wall of the crystal rod 200. By providing the concave clamping groove 212 on the clamping member 21, the force application point or force application area on the crystal rod 200 can be increased to clamp the crystal rod 200 more firmly. The positioning assembly 100 provided in the present disclosure has a simple structure and can realize a convenient and relatively reliable positioning operation on the crystal rod 200 before processing the Notch groove 201 on the crystal rod 200, thereby avoiding the problems of complex positioning assembly structure and complicated positioning operation in related technologies.

[0029] It should be noted that the inner wall surface of the receiving groove 11 may be partially in contact with the outer wall of the crystal rod 200. For example, the inner wall surface of the receiving groove 11 may be configured as follows: Figure 1 The trapezoidal groove shown in the figure may also be constructed as a V-shaped groove, etc.; the inner wall surface of the accommodating groove 11 may also be completely in contact with the outer peripheral wall of the crystal rod 200. For example, the inner wall surface of the accommodating groove 11 may be constructed as a groove body shape consistent with the outer peripheral wall structure of the crystal rod 200.

[0030] It should also be noted that the inner wall surface of the pressing groove 212 can be partially in contact with the outer wall of the crystal rod 200. For example, the inner wall surface of the pressing groove 212 can be configured as follows: Figure 1 The trapezoidal groove shown can also be constructed as a V-shaped groove, etc.; the inner wall surface of the clamping groove 212 can also be completely in contact with the outer wall of the crystal rod 200. For example, the inner wall surface of the clamping groove 212 can be constructed as a groove body shape consistent with the outer wall structure of the crystal rod 200.

[0031] In some embodiments, Figure 1As shown, the clamping member 21 may include a clamping plate 211. A clamping groove 212 is formed on the clamping plate 211. The clamping plate 211 is placed parallel to the axial direction of the crystal rod 200. The clamping plate 211 is connected to the mounting base 1 through two locking members 22. The two locking members 22 are respectively located at both ends of the axial direction of the crystal rod 200. Placing the clamping plate 211 parallel to the axial direction of the crystal rod 200 can increase the contact area between the clamping plate 211 and the crystal rod 200, thereby improving the reliability of the clamping of the clamping plate 211. Furthermore, the two locking members 22 are respectively located at both ends of the axial direction of the crystal rod 200. Such an arrangement enables the locking members 22 to apply a relatively uniform locking force to the clamping plate 211, thereby avoiding the problem that the unilateral locking force is too large and thus causes the clamping plate 211 to damage the crystal rod 200.

[0032] In order to further improve the positioning reliability of the positioning assembly 100 on the crystal rod 200, the number of the clamping structures 2 can be set to two groups. Figure 1 As shown, the two clamping plates 211 of the two sets of clamping structures 2 are arranged at intervals along the circumference of the crystal rod 200 to reserve a processing space 23 between the two clamping plates 211. When the crystal rod 200 is fixed on the positioning assembly 100, the outer peripheral wall of the crystal rod 200 for processing the Notch groove 201 can be exposed to the positioning assembly 100 through the processing space 23, so as to wait for the processing equipment to process the Notch groove 201. Such an arrangement can achieve the purpose of reliable clamping of the clamping plate 211 on the one hand, and can also reasonably arrange the installation positions of each clamping plate 211 in the positioning assembly 100 on the other hand, so as to ensure the processing operation of the crystal rod 200. Furthermore, the two locking members 22 of the two clamping plates 211 at the same end of the axial direction of the crystal rod 200 are arranged crosswise. The cross arrangement of the locking members 22 can achieve a more reliable locking purpose for the clamping plate 211. Of course, it is also understandable that the locking purpose can also be achieved by arranging the locking rods 221 in parallel with each other. This is not limited here, and those skilled in the art can make design adjustments based on actual conditions.

[0033] In some embodiments, Figure 1 As shown, the inner wall surface of the accommodating groove 11 may include a first wall surface 111 and a second wall surface 112 that are arranged opposite to each other. The first wall surface 111 and the second wall surface 112 are arranged symmetrically with respect to the vertical direction and extend obliquely away from each other from bottom to top. The crystal rod 200 is located between the first wall surface 111 and the second wall surface 112. Under the condition that the locking rods 221 are arranged crosswise with each other, the locking member 22 of one clamping structure 2 can be connected to the first wall surface 111, and the locking member 22 of the other clamping structure 2 can be connected to the second wall surface 112. Such an arrangement is more reliable for the locking effect of the clamping plate 211. In addition, the locking rods 221 are arranged crosswise with each other, which can also reduce the structural dimensions of the positioning assembly 100 in the vertical direction.

[0034] In some embodiments, Figure 1 As shown, the locking member 22 may include a locking rod 221 and a locking nut 222. The first wall surface 111 and the second wall surface 112 are both provided with threaded holes threadedly connected to the locking rod 221. The pressing plate 211 is provided with a mounting hole. One end of the locking rod 221 is connected to the threaded hole, and the other end passes through the mounting hole and is connected to the locking nut 222. The locking purpose of the pressing plate 211 is achieved by the mutual cooperation of the locking rod 221 and the locking nut 222. This locking method has a simple structure and a convenient locking operation.

[0035] In some embodiments, Figure 1 As shown, a protective layer 3 may be provided between the receiving groove 11 and the crystal rod 200. A protective layer 3 may be provided between the pressing groove 212 and the crystal rod 200. A protective layer 3 may be provided between the pressing member 21 and the crystal rod 200. The provision of the protective layer 3 can prevent the inner wall surface of the receiving groove 11, the inner wall surface of the pressing groove 212 and the pressing member 21 from causing wear to the crystal rod 200 when the crystal rod 200 is placed in the positioning assembly 100. The provision of the protective layer 3 improves the reliability of the positioning assembly 100. For example, the protective layer 3 may be a polishing cloth. The present disclosure adopts the polishing cloth as the protective layer 3 mainly due to its advantages such as high softness, good wear resistance, environmental protection and safety. Of course, it is understandable that the protective layer 3 may also be realized by other cotton cloth, sponge and the like, which is not limited here, and those skilled in the art may make design adjustments according to actual conditions.

[0036] In some embodiments, Figure 1 As shown, the inner wall surface of the clamping groove 212 includes a first clamping surface 212a and a second clamping surface 212b opposite to each other. The angle between the first clamping surface 212a and the second clamping surface 212b is an obtuse angle. The angle between the first clamping surface 212a and the second clamping surface 212b is designed to be an obtuse angle, so that when the crystal rod 200 is placed in the receiving groove 11, the first clamping surface 212a and the second clamping surface 212b can abut against the outer peripheral surface of the crystal rod 200 as low as possible, thereby enabling the clamping member 21 to achieve the purpose of reliable clamping of the crystal rod 200. Preferably, the angle between the first clamping surface 212a and the second clamping surface 212b is 120°.

[0037] In some embodiments, Figure 1 As shown, the mounting base 1 may include a first outer surface 12 and a second outer surface 13 that are separated from each other. A first transport groove 14 is provided on the first outer surface 12. A second transport groove 15 is provided on the second outer surface 13. The provision of the first transport groove 14 and the second transport groove 15 facilitates the movement of the positioning assembly 100, thereby improving the convenience of use of the positioning assembly 100.

[0038] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0039] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0040] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A positioning assembly for a crystal rod, characterized in that: include: A mounting base having a receiving groove, wherein the receiving groove is used to place the crystal rod, and at least a portion of the inner wall surface of the receiving groove is in contact with the outer peripheral wall of the crystal rod; and The clamping structure includes a clamping member and a locking member, wherein the clamping member is connected to the mounting base through the locking member to clamp the crystal rod between the clamping member and the mounting base, and the clamping member has an inwardly concave clamping groove, and at least part of the inner wall surface of the clamping groove is in contact with the outer peripheral wall of the crystal rod.

2. The positioning assembly according to claim 1, characterized in that: The clamping member includes a clamping plate, the clamping groove is formed on the clamping plate, the clamping plate is placed parallel to the axial direction of the crystal rod, and the clamping plate is connected to the mounting base through two locking members, and the two locking members are respectively located at two ends of the axial direction of the crystal rod.

3. The positioning assembly according to claim 2, characterized in that: There are two groups of the clamping structures. The two clamping plates of the two groups of the clamping structures are arranged at intervals along the circumference of the crystal rod to reserve a processing space between the two clamping plates. The two locking pieces of the two clamping plates located at the same axial end of the crystal rod are arranged crosswise.

4. The positioning assembly according to claim 3, characterized in that: The inner wall surface of the accommodating groove includes a first wall surface and a second wall surface that are arranged opposite to each other, the first wall surface and the second wall surface are symmetrically arranged with respect to the vertical direction and extend obliquely away from each other from bottom to top, the crystal rod is located between the first wall surface and the second wall surface, the locking piece of one of the clamping structures is connected to the first wall surface, and the locking piece of the other clamping structure is connected to the second wall surface.

5. The positioning assembly according to claim 4, characterized in that: The locking member includes a locking rod and a locking nut. The first wall surface and the second wall surface are both provided with threaded holes threadedly connected to the locking rod. The clamping plate is provided with a mounting hole. One end of the locking rod is connected to the threaded hole, and the other end passes through the mounting hole and is connected to the locking nut.

6. The positioning assembly according to claim 1, characterized in that: A protective layer is provided between the accommodating groove and the crystal rod, and between the pressing groove or the pressing member and the crystal rod.

7. The positioning assembly according to claim 6, characterized in that: The protective layer is a polishing cloth.

8. The positioning assembly according to claim 1, characterized in that: The inner wall surface of the pressing groove includes a first pressing surface and a second pressing surface opposite to each other, and the angle between the first pressing surface and the second pressing surface is an obtuse angle.

9. The positioning assembly according to claim 8, characterized in that: The included angle between the first pressing surface and the second pressing surface is 120°.

10. The positioning assembly according to claim 1, characterized in that: The mounting base includes a first outer surface and a second outer surface which are away from each other, wherein a first transport groove is arranged on the first outer surface, and a second transport groove is arranged on the second outer surface.

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