Caliper for rapidly measuring whether two circle axes are aligned or not
By designing a caliper for single crystal growth of silicon carbide, using structures such as handles and positioning seats to quickly measure and adjust the alignment of the heating element with the quartz tube, the axle deviation problem caused by human factors is solved and the quality of the ingot is improved and operational convenience.
Patent Information
- Application Number
- CN202420666590.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-02
Smart Images
Figure CN222144026U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of equipment coaxial debugging, in particular to a caliper for quickly measuring whether two circular axis centers are aligned. Background Art
[0002] As an important third-generation semiconductor material, silicon carbide has shown great application potential in high-temperature, high-voltage, and high-frequency electronic applications such as rail transit, new energy vehicles, high-voltage power transmission and transformation, 5G communications, and photovoltaics in recent years due to its wide band gap, high critical breakdown field strength, high thermal conductivity, and high carrier saturation mobility.
[0003] At present, the most mature commercial method for growing silicon carbide single crystals is the physical vapor transport (PVT) method. The PVT crystal growth device currently used is electromagnetic induction heating, which requires the heating element to be subjected to uniform electromagnetic force. However, in actual operation, the heating element moves up and down frequently, and there are many human factors, which causes the heating element and the axes of the quartz tube and induction coil to deviate easily, resulting in defects in the crystal ingot. For this reason, we propose a caliper that can quickly measure whether the axes of two circles are aligned. Utility Model Content
[0004] The utility model aims to provide a caliper for quickly measuring whether the axes of two circles are aligned. The caliper has the advantage of quickly measuring whether the axes of two circles are aligned, and solves the problem that in actual operation, the heating element frequently moves up and down and there are many human factors, which causes the heating element and the axes of the quartz tube and the induction coil to deviate easily, resulting in defects in the crystal ingot.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a caliper for quickly measuring whether the axes of two circles are aligned, comprising a handle, an annular groove is provided at the upper end of the outer surface of the handle, a rotatable fixed sleeve is provided on the inner side of the annular groove, a positioning seat is provided on the outer surface of the rotatable fixed sleeve, a caliper is provided on the inner side of the positioning seat, a transparent disc is fixedly connected to the lower end of the outer surface of the handle, and a positioning fulcrum is provided at the bottom of the handle.
[0006] Preferably, a circular heating element is arranged on the outer side of the transparent disc, and the circular heating element is a cylinder.
[0007] Preferably, a quartz tube is arranged on the outer side of the circular heating element, and the quartz tube is in a circular barrel shape.
[0008] Preferably, the number of the positioning seats is three, and the angle between two adjacent positioning seats is one hundred and twenty degrees.
[0009] Preferably, length scale lines and angle scale lines are provided on the top of the transparent disc.
[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0011] In actual operation, the caliper of the utility model can quickly and accurately place the circular heating element to be displaced to the center position, avoiding the heating element and the axes of the quartz tube and the induction coil to easily deviate from each other, thereby causing defects in the crystal ingot. The caliper is easy to use, simple in structure and good in practical effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the handle structure of the utility model;
[0014] Figure 3 The utility model is a schematic diagram of the matching structure of the caliper and the quartz tube in a top view.
[0015] In the figure: 1. handle; 2. rotatable fixing sleeve; 3. positioning seat; 4. caliper; 5. transparent disc; 6. length scale line; 7. positioning fulcrum; 8. angle scale line; 9. ring groove; 10. quartz tube; 11. round heating element. DETAILED DESCRIPTION
[0016] 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.
[0017] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0019] The handle 1, rotatable fixing sleeve 2, positioning seat 3, caliper 4, transparent disc 5, length scale line 6, positioning fulcrum 7, angle scale line 8, annular groove 9, quartz tube 10 and circular heating element 11 of the present application are all universal standard parts or parts known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.
[0020] See also Figure 1-3 A caliper for quickly measuring whether the axes of two circles are aligned, comprises a handle 1, an annular groove 9 is provided at the upper end of the outer surface of the handle 1, a rotatable fixing sleeve 2 is provided on the inner side of the annular groove 9, a positioning seat 3 is provided on the outer surface of the rotatable fixing sleeve 2, a caliper 4 is provided on the inner side of the positioning seat 3, a transparent disc 5 is fixedly connected to the lower end of the outer surface of the handle 1, a length scale line 6 and an angle scale line 8 are provided on the top of the transparent disc 5, and a positioning fulcrum 7 is provided on the bottom of the handle 1.
[0021] A circular heating element 11 is disposed on the outer side of the transparent disc 5 , and the circular heating element 11 is a cylinder.
[0022] A quartz tube 10 is disposed outside the circular heating element 11 , and the quartz tube 10 is in a circular barrel shape.
[0023] The number of the positioning seats 3 is three, and the angle between two adjacent positioning seats 3 is one hundred and twenty degrees.
[0024] Through the above technical solution, the rotation angle of the caliper 4 can be locked by setting the positioning seat 3.
[0025] The top of the transparent disc 5 is provided with length scale lines 6 and angle scale lines 8 .
[0026] Through the above technical solution, the length scale lines 6 and the angle scale lines 8 are arranged to facilitate the user to observe and adjust the angle and length of the caliper 4 .
[0027] When in use, the caliper 4 is placed in the quartz tube 10, and the length scale lines 6 and angle scale lines 8 on the transparent disk 5 can assist the three calipers 4 to rotate to the desired angle and be on the same horizontal plane. Then, the calipers 4 are adjusted to the same length and aligned with the quartz tube 10. With the assistance of the positioning fulcrum 7, the axial position of the caliper 4 is the position of the center of the circular heating element 11. Then, the quartz tube 10 and the circular heating element 11 can be positioned up and down in turn to ensure that the quartz tube 10 and the circular heating element 11 are coaxial. At the same time, the size of the caliper 4 can be determined according to actual applications.
[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A caliper for quickly measuring whether the axes of two circles are aligned, comprising a handle (1), characterized in that: The upper end of the outer surface of the handle (1) is provided with an annular groove (9), a rotatable fixing sleeve (2) is arranged inside the annular groove (9), a positioning seat (3) is arranged on the outer surface of the rotatable fixing sleeve (2), a caliper (4) is arranged inside the positioning seat (3), a transparent disc (5) is fixedly connected to the lower end of the outer surface of the handle (1), and a positioning fulcrum (7) is arranged at the bottom of the handle (1).
2. A caliper for quickly measuring whether two circular axes are aligned according to claim 1, characterized in that: A circular heating element (11) is arranged on the outer side of the transparent disc (5), and the circular heating element (11) is a cylinder.
3. A caliper for quickly measuring whether two circular axes are aligned according to claim 2, characterized in that: A quartz tube (10) is arranged on the outer side of the circular heating element (11), and the quartz tube (10) is in a circular barrel shape.
4. A caliper for quickly measuring whether two circular axes are aligned according to claim 1, characterized in that: The number of the positioning seats (3) is three, and the angle between two adjacent positioning seats (3) is one hundred and twenty degrees.
5. A caliper for quickly measuring whether two circular axes are aligned according to claim 1, characterized in that: The top of the transparent disc (5) is provided with length scale lines (6) and angle scale lines (8).