A crystal rod support positioning mechanism
By designing a swingable shaft seat structure in the crystal rod support positioning mechanism, the fixing effect problem caused by the non-standard shape of the crystal rod is solved, and effective fixation of the non-standard shape of the crystal rod is achieved.
Patent Information
- Application Number
- CN202421440158.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-24
AI Technical Summary
Since the end surface of the crystal rod is not perpendicular to the axis, the existing positioning tooling cannot effectively tighten the crystal rod, affecting the fixing effect.
A crystal rod support positioning mechanism is designed, and by providing a second groove, a first groove, a copper sleeve A, a copper sleeve B, a steel ball, a through groove, a thread groove and a screw on the shaft seat, the shaft seat can swing at a certain angle on the central axis, thereby adapting to the end face of a non-standard cylindrical crystal rod.
It realizes that even if the end surface of the crystal rod is inclined, it can be effectively attached, ensuring the fixing effect of the crystal rod.
Smart Images
Figure CN222741814U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of positioning mechanisms, in particular to a crystal rod supporting and positioning mechanism. Background Art
[0002] A crystal rod refers to the entire single crystal silicon. Because the production of single crystal silicon rods is completed by the Czochralski method and the finished products are all rod-shaped, they are called crystal rods. Crystal rods can be made of many different materials, including but not limited to crystalline silicon, cadmium selenide, titanium crystal rods, etc. These materials are formed into a rod-shaped object with a single crystal structure through precise furnace melting, crystal growth and processing.
[0003] The crystal rod needs to be fixed during the process of being processed into various products. One side is fixed by a tooling fixture, and the other side is tightened by a positioning tool. The positioning tool includes a center axis fixed on the tooling and an axis seat for tightening the crystal rod. However, since the crystal rod is not a standard cylinder, its end face is not always perpendicular to the axis, and the axis seat is a flat surface for tightening, so it cannot fit the end face of the crystal rod for tightening, affecting the fixing effect. Utility Model Content
[0004] The purpose of the utility model is to provide a crystal rod supporting and positioning mechanism to solve the above technical problems.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crystal rod supporting and positioning mechanism, comprising a central axis fixed to a tooling by bolts and an axis seat for tightening the crystal rod, and also comprising a copper sleeve A and a copper sleeve B, the end surface of the axis seat away from the tightening end is provided with a second groove, the bottom of the second groove is provided with a first groove, the copper sleeve A and the copper sleeve B are arranged in the second groove, the copper sleeve A and the copper sleeve B are tightly fitted and a steel ball is provided between them for rotation, the steel ball is penetrated by a through groove, the end surface of the axis seat away from the tightening end is fixed with an end cover for tightening the copper sleeve B by bolts passing through the mounting hole, the end surface of the end cover is provided with a movable groove for the central axis to pass through and swing, the end of the central axis close to the steel ball is provided with a threaded groove, and a screw passing through the through groove and threadedly connected to the threaded groove is provided in the first groove.
[0006] Preferably, an embedding ring is fixedly provided at one end of the copper sleeve A close to the copper sleeve B, and an annular groove for embedding the embedding ring is provided at one end of the copper sleeve B close to the copper sleeve A.
[0007] Preferably, the outer walls of the copper sleeve A and the copper sleeve B are tightly fitted with the inner wall of the second groove, and the inner walls of the copper sleeve A and the copper sleeve B are fitted with the steel balls.
[0008] Preferably, the screw is rotatably connected to the inner wall of the through groove, the open end of the thread groove is an arc surface that fits the outer wall of the steel ball, and there is a gap between the end surface of the central axis close to the copper sleeve B and the end surface of the copper sleeve B.
[0009] Preferably, it also includes a gasket, which is arranged between the screw head and the steel ball, and the gasket is tightly fitted to the surface of the steel ball, and a rubber pad is provided on the inner wall of the first groove.
[0010] Preferably, a positioning block is fixedly provided on the end surface of the end cover close to the shaft seat and between the mounting holes, a positioning groove for inserting the positioning block is provided on the end surface of the shaft seat close to the end cover, and the movable groove is gap-matched with the central axis.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: through the arrangement of the first groove, the second groove, the copper sleeve A, the copper sleeve B, the steel ball, the through groove, the threaded groove and the screw, the shaft seat can be swung at a certain angle on the central axis through the steel ball, so that when the shaft seat is pressed against the crystal rod, even if the end face of the crystal rod is slightly tilted, it can still be tightly attached, thereby ensuring the fixing effect of the crystal rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are 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 creative work.
[0013] Figure 1 This is a schematic diagram of the appearance of this embodiment from one viewing angle;
[0014] Figure 2 is a schematic diagram of the appearance of this embodiment from another viewing angle;
[0015] Figure 3 It is a cross-sectional view of this embodiment.
[0016] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0017] 1. Center shaft; 2. Shaft seat; 3. First groove; 4. Second groove; 5. Copper sleeve A; 6. Copper sleeve B; 7. Ring groove; 8. Embedded ring; 9. Steel ball; 10. Through groove; 11. Thread groove; 12. Screw; 13. End cover; 14. Mounting hole; 15. Gasket; 16. Rubber pad; 17. Movable groove; 18. Positioning groove; 19. Positioning block. DETAILED DESCRIPTION
[0018] 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 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.
[0019] See also Figure 1-3 The utility model provides a technical solution: a crystal rod supporting and positioning mechanism, comprising a central shaft 1 fixed on a tooling by bolts and an axle seat 2 for tightening the crystal rod, and also comprising a copper sleeve A5 and a copper sleeve B6. The end surface of the axle seat 2 away from the tightening end is provided with a second groove 4, and the bottom of the second groove 4 is provided with a first groove 3. The copper sleeve A5 and the copper sleeve B6 are arranged in the second groove 4. The copper sleeve A5 and the copper sleeve B6 are tightly fitted and rotated between them. A steel ball 9 is provided, and a through groove 10 is provided through the steel ball 9. The end surface of the axle seat 2 away from the tightening end is fixed with an end cover 13 for tightening the copper sleeve B6 by bolts passing through a mounting hole 14. The end surface of the end cover 13 is provided with a movable groove 17 for the central shaft 1 to pass through and swing. The end of the central shaft 1 close to the steel ball 9 is provided with a threaded groove 11, and a screw 12 passing through the through groove 10 and threadedly connected to the threaded groove 11 is provided in the first groove 3.
[0020] Specifically, an embedding ring 8 is fixedly provided at one end of the copper sleeve A5 close to the copper sleeve B6, and an annular groove 7 for embedding the embedding ring 8 is provided at one end of the copper sleeve B6 close to the copper sleeve A5, so that the copper sleeve A5 and the copper sleeve B6 can be accurately aligned and spliced for easy installation.
[0021] Specifically, the outer walls of the copper sleeve A5 and the copper sleeve B6 fit tightly with the inner wall of the second groove 4 to ensure the stability of the copper sleeve A5 and the copper sleeve B6 in the second groove 4. The inner walls of the copper sleeve A5 and the copper sleeve B6 fit with the steel ball 9, so that the steel ball 9 can rotate in the arc surface formed by the copper sleeve A5 and the copper sleeve B6 without shaking.
[0022] Specifically, the screw 12 is rotatably connected to the inner wall of the through groove 10, and the open end of the threaded groove 11 is an arc surface that fits the outer wall of the steel ball 9, thereby increasing the contact area between the center shaft 1 and the steel ball 9, thereby increasing the connection tightness between the center shaft 1 and the steel ball 9. There is a gap between the end face of the center shaft 1 close to the copper sleeve B6 and the end face of the copper sleeve B6, so that the shaft seat 2 can swing at a certain angle relative to the center shaft 1 through the steel ball 9, which can facilitate close contact with the end face of the crystal rod.
[0023] Specifically, it also includes a gasket 15, which is arranged between the head of the screw 12 and the steel ball 9. The gasket 15 fits tightly against the surface of the steel ball 9 to improve the fixing stability of the screw 12 to fix the steel ball 9 and the central axis 1. A rubber pad 16 is provided on the inner wall of the first groove 3 to reduce the wear between the head of the screw 12, the gasket 15 and the inner wall of the first groove 3.
[0024] Specifically, a positioning block 19 is fixedly provided on the end surface of the end cover 13 close to the shaft seat 2 and between the mounting holes 14. A positioning groove 18 is provided on the end surface of the shaft seat 2 close to the end cover 13 for inserting the positioning block 19. When installing the end cover 13, the positioning block 19 of the end cover 13 is inserted into the positioning groove 18 of the shaft seat 2 and the end cover 13 is tightly attached to the shaft seat 2. At this time, the mounting holes 14 on the end cover 13 correspond to the mounting holes 14 on the shaft seat 2, and they can be fixed by bolts and nuts. The movable groove 17 is clearance-matched with the center axis 1, so that the shaft seat 2 can swing around the center axis 1 at a certain angle.
[0025] A specific application example of this embodiment is:
[0026] When the device is in use, the steel ball 9 is placed between the copper sleeve A5 and the copper sleeve B6, and the through groove 10 is located at the opening of the copper sleeve A5 and the copper sleeve B6. The copper sleeve A5 and the copper sleeve B6 are tightly attached through the ring groove 7 and the embedded ring 8. The open end of the thread groove 11 of the central shaft 1 is tightly attached to the steel ball 9 and the thread groove 11 is coaxial with the through groove 10. A gasket 15 is padded at the end of the steel ball 9 away from the central shaft 1, and the screw 12 passes through the gasket 15 and the through groove 10 is screwed into the thread groove 11 to lock the central shaft 1 and the steel ball 9. The copper sleeve A5 and the copper sleeve B6 are placed in the second groove 4 and the gasket is 15 and the head of the screw 12 enter the first groove 3, insert the positioning block 19 of the end cover 13 into the positioning groove 18 of the shaft seat 2, and make the end cover 13 close to the shaft seat 2. At this time, the mounting hole 14 on the end cover 13 corresponds to the mounting hole 14 on the shaft seat 2, and can be fixed by bolts and nuts. The end cover 13 presses the copper sleeve A5 and the copper sleeve B6 to fix the central shaft 1 on the tooling. The shaft seat 2 can swing at a certain angle on the central shaft 1 through the steel ball 9, so that when the shaft seat 2 presses against the crystal rod, even if the end face of the crystal rod is a little tilted, it can be pressed tightly to ensure the fixing effect of the crystal rod.
[0027] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0028] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.
[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that modifications may be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A crystal ingot support and positioning mechanism, comprising a central shaft (1) fixed to a fixture by bolts and a shaft seat (2) for pressing against the crystal ingot, characterized in that: It also comprises a copper sleeve A (5) and a copper sleeve B (6), wherein a second groove (4) is provided on the end surface of the shaft seat (2) away from the abutting end, a first groove (3) is provided at the bottom of the second groove (4), the copper sleeve A (5) and the copper sleeve B (6) are arranged in the second groove (4), the copper sleeve A (5) and the copper sleeve B (6) are tightly fitted and a steel ball (9) is provided therebetween for rotation, a through groove (10) is provided through the steel ball (9), an end cover (13) for abutting the copper sleeve B (6) is fixed on the end surface of the shaft seat (2) away from the abutting end by means of bolts passing through the mounting hole (14), the end surface of the end cover (13) is provided with a movable groove (17) for the central shaft (1) to pass through and swing, a threaded groove (11) is provided on the end of the central shaft (1) close to the steel ball (9), and a screw rod (12) is provided in the first groove (3) which passes through the through groove (10) and is threadably connected to the threaded groove (11).
2. A crystal rod support and positioning mechanism according to claim 1, characterized in that: An insert ring (8) is fixedly provided at one end of the copper sleeve A (5) close to the copper sleeve B (6), and an annular groove (7) for inserting the insert ring (8) is provided at one end of the copper sleeve B (6) close to the copper sleeve A (5).
3. The crystal rod support and positioning mechanism according to claim 1, characterized in that: The outer walls of the copper sleeve A (5) and the copper sleeve B (6) are tightly fitted with the inner wall of the second groove (4), and the inner walls of the copper sleeve A (5) and the copper sleeve B (6) are fitted with the steel ball (9).
4. The crystal rod support and positioning mechanism according to claim 1, characterized in that: The screw rod (12) is rotatably connected to the inner wall of the through groove (10); the open end of the threaded groove (11) is an arc surface that fits the outer wall of the steel ball (9); and a gap exists between the end surface of the central axis (1) close to the copper sleeve B (6) and the end surface of the copper sleeve B (6).
5. The crystal rod support and positioning mechanism according to claim 1, characterized in that: It also includes a gasket (15), which is arranged between the head of the screw (12) and the steel ball (9), and the gasket (15) is tightly fitted to the surface of the steel ball (9). The inner wall of the first groove (3) is provided with a rubber pad (16).
6. The crystal rod support and positioning mechanism according to claim 1, characterized in that: A positioning block (19) is fixedly provided on the end surface of the end cover (13) close to the shaft seat (2) and between the mounting holes (14); a positioning groove (18) for inserting the positioning block (19) is provided on the end surface of the shaft seat (2) close to the end cover (13); and the movable groove (17) is clearance-matched with the central shaft (1).