Device for quickly determining zero position of seed crystal of single crystal furnace

Abstract

The utility model provides a device for quickly determining the zero position of a seed crystal of a single crystal furnace, and relates to the technical field of measurement. The device for quickly determining the zero position of the seed crystal of the single crystal furnace comprises a connecting piece, a connecting rod and a connecting rod, wherein the connecting piece is provided with a connecting opening used for being connected with a heavy hammer; the connecting seat is arranged on the outer side wall of the connecting piece; one end of the connecting rod assembly is hinged to the connecting seat; the positioning screw is mounted at the other end of the connecting rod assembly; the mounting seat is rotationally mounted at the other end of the connecting rod assembly, and a sliding groove matched with the positioning screw is formed in the mounting seat; and the distance measuring instrument is mounted on the mounting seat. By adopting the rapid determination device, a zero calibration process can be realized by one person, the labor cost is reduced, the distance meter directly displays the distance, and the problem of zero calibration error caused by inaccurate data due to human factors is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of measurement, in particular to a device for quickly determining the zero position of a seed crystal in a single crystal furnace. Background Art

[0002] In single crystal furnace crystal pulling, the position relationship between the liquid level and the guide tube directly determines the height of the liquid level. When seeding, observe the position of the upper axis, and set it as the seed crystal zero point when the seed crystal contacts the liquid surface. As the seed crystal is consumed, when the length of the seed crystal becomes shorter and then drops to zero, the lower end surface of the seed crystal cannot contact the liquid surface, and the seeding function cannot be achieved. At this time, the seed crystal needs to be lowered again to contact the liquid surface. This operation cannot ensure the safe length reserved for the seed crystal, and after long-term operation, the seed crystal will be consumed, resulting in a shortened seed crystal service life. In addition, this operation will increase the operation time and affect the efficiency of crystal pulling. Therefore, regular seed crystal zero position calibration becomes part of the process operation.

[0003] Under the existing conditions, the zero position of the seed crystal can be determined by measuring the distance between the weight and the lower flange of the auxiliary furnace chamber. By achieving the unification of this size, the zero position of the seed crystal can remain unchanged. At present, two people are used to measure the relative position relationship between the weight and the lower flange of the auxiliary furnace chamber, and then the zero position of the seed crystal is deduced. When two people work together to measure the relative position between the weight and the lower flange of the auxiliary furnace chamber. One person uses a steel ruler (ruler) to lean against the bottom of the lower flange, and the other person uses a tape measure to measure the position of the steel ruler (ruler) from the weight, and raises and lowers the upper shaft so that the distance between the two reaches the predetermined distance. At this time, observe whether the position of the upper shaft of the industrial computer is zero. If there is a deviation, enter the setting page to set this displayed value to zero, so that the calibration of the seed crystal zero position is achieved.

[0004] The above method has the following disadvantages: 1. It requires two people to cooperate in the operation, which is inefficient and occupies human resources; 2. When measuring with a tape measure, the operator needs to read the measured value, which has the risk of reading incorrectly, thereby affecting the zero position calibration work; 3. When the upper and lower parts work together to lock the seed crystal limit, there is a safety hazard of falling objects from high altitude. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a device for quickly determining the zero position of a single crystal furnace seed crystal. By adopting the device, one person can complete the zero position calibration process, eliminating the labor cost. The distance meter directly gives the distance display, avoiding the problem of zero position calibration error caused by inaccurate data due to human factors.

[0006] The technical solution adopted by the utility model is:

[0007] A device for quickly determining the zero position of a seed crystal in a single crystal furnace, comprising:

[0008] A connecting piece, wherein the connecting piece is provided with a connecting opening for connecting with a weight;

[0009] A connecting seat, arranged on the outer side wall of the connecting piece;

[0010] A connecting rod assembly, one end of which is hinged to the connecting seat;

[0011] a positioning screw mounted on the other end of the connecting rod assembly;

[0012] A mounting seat, rotatably mounted on the other end of the connecting rod assembly, wherein the mounting seat is provided with a sliding groove matched with the positioning screw;

[0013] The rangefinder is mounted on the mounting base.

[0014] Optionally, the connecting member is in a cylindrical structure, and the connecting opening is provided along the axial direction of the connecting member.

[0015] Optionally, a locking assembly is provided at the connection between the connecting seat and the connecting rod assembly.

[0016] Optionally, the connecting rod assembly comprises:

[0017] An articulated seat, articulated with the connecting seat;

[0018] A rod body, one end of which is connected to the connecting seat;

[0019] The mounting plate is arranged at the other end of the rod body, the positioning screw is arranged on the top of the mounting plate, and the mounting seat is rotatably mounted on the mounting plate.

[0020] Optionally, the mounting base comprises:

[0021] A rotating plate, rotatably mounted on the connecting rod assembly, wherein the sliding groove is arranged on the rotating plate;

[0022] A mounting plate, arranged on one side of the rotating plate, and the rangefinder is mounted on the mounting plate;

[0023] Wherein, after the rotating plate is installed, the rotating plate drives the mounting plate to rotate, and during the rotation process, the rangefinder is driven to adjust the angle position.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] 1. By using the above device, one person can complete the zero calibration process, eliminating labor costs.

[0026] 2. The rangefinder directly displays the distance, avoiding the problem of zero calibration errors caused by inaccurate data due to human factors.

[0027] 3. Avoid the safety hazards of cross-operation and falling objects from high altitude. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 This is a schematic diagram of the three-dimensional structure of a device for quickly determining the zero position of a seed crystal in a single crystal furnace.

[0030] Figure 2 This is a schematic diagram of the planar structure of a device for quickly determining the zero position of a seed crystal in a single crystal furnace.

[0031] Figure 3 This is a schematic diagram of the structure of the device for quickly determining the zero position of the seed crystal in a single crystal furnace when in use.

[0032] Reference numerals:

[0033] 1. Connecting piece; 11. Connecting opening;

[0034] 2. Connecting seat;

[0035] 3. Connecting rod assembly; 31. Articulated seat; 32. Rod body; 33. Mounting plate;

[0036] 4. Positioning screws;

[0037] 5. Mounting seat; 51. Sliding slot; 52. Rotating plate; 53. Mounting plate;

[0038] 6. Distance meter;

[0039] 7. Locking assembly. DETAILED DESCRIPTION

[0040] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0041] In the description of the present invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships conventionally placed when the product of the present invention is used, or are the orientations or positional relationships conventionally understood by those skilled in the art. They 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.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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, an electrical connection, or a communication; 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0045] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0046] like Figure 1 , Figure 2 and Figure 3As shown, an embodiment of the utility model provides a device for quickly determining the zero position of a seed crystal in a single crystal furnace, comprising: a connecting member 1, a connecting seat 2, a connecting rod assembly 3, a positioning screw 4, a mounting seat 5 and a distance meter 6. The connecting member 1 is provided with a connecting opening 11 connected to a weight. The connecting seat 2 is arranged on the outer wall of the connecting member 1. One end of the connecting rod assembly 3 is hinged to the connecting seat 2. The positioning screw 4 is installed at the other end of the connecting rod assembly 3. The mounting seat 5 is rotatably installed on the connecting rod assembly 3, and the mounting seat 5 is provided with a sliding groove 51 that matches the positioning screw 4. The distance meter 6 is installed on the mounting seat 5.

[0047] When in use, the connector passes through the tungsten wire rope through the connecting opening 11, so that the connector 1 is clamped with the weight. The connection opening 11 is provided, on the one hand, to facilitate the passing of the tungsten wire rope, and on the other hand, to adapt to weights of different dimensions and improve the versatility of the determination device. When measuring, the connecting rod assembly 3 rotates around its hinge with the mounting seat 5, so that the connecting rod assembly 3 is in a horizontal position. At this time, the opening of the rangefinder 6 is opened to measure the distance between the rangefinder 6 and the lower flange of the auxiliary chamber. After lifting the upper shaft of the industrial computer so that the displayed value on the rangefinder 6 reaches the preset value, observe whether the position of the upper shaft of the industrial computer is zero. If it is, it shows the calibration of the seed crystal zero position. If there is a deviation, enter the setting page of the industrial computer and set the secondary display value to zero.

[0048] In order to adapt to the lower flange of the auxiliary chamber with different diameters, a sliding groove 51 is provided on the mounting seat 5, and a positioning screw 4 is provided on the connecting rod assembly 3. When the mounting seat 5 rotates, the positioning screw 4 is in the sliding groove 51, so that the position of the rangefinder 6 changes, so that the rangefinder 6 is located below the lower flange of the auxiliary chamber.

[0049] In one embodiment, if Figure 1 and Figure 3 As shown, in order to facilitate the processing of the connection opening 11, the connection member 1 adopts a cylindrical structure part, and the connection opening 11 is opened along the axial direction of the connection member 1 with the cylindrical structure.

[0050] In one embodiment, if Figure 1 and Figure 2 As shown, in order to facilitate the positioning of the connecting rod assembly 3, a locking assembly 7 is provided at the connection between the connecting seat 2 and the connecting rod assembly 3. The locking assembly 7 can be a screw and a nut, and the angle between the connecting seat 2 and the connecting rod assembly 3 is fixed by the cooperation of the screw and the nut. The locking assembly 7 can also be a pin. When the pin is selected, the connecting seat 2, the connecting rod assembly 3 and the pin have a certain friction force after being connected, so as to avoid the angle deviation of the connecting rod assembly 3 after the angle is rotated.

[0051] In one embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, the connecting rod assembly 3 includes: an articulated seat 31, a rod body 32 and a mounting plate 33. The articulated seat 31 is articulated with the connecting seat 2, and one end of the rod body 32 is articulated with the connecting seat 2. The mounting plate 33 is arranged at the other end of the rod body 32, and the positioning screw 4 is arranged on the top of the mounting plate 33. The mounting seat 5 is rotatably mounted on the mounting plate 33, and the sliding groove 51 on the mounting seat 5 is matched with the positioning screw 4 after installation.

[0052] When in use, one end of the hinge seat 31 is hinged to the connecting seat 2 via a pin. The rod body 32 is fixedly arranged at the other end of the hinge seat 31. The other end of the rod body 32 is fixedly provided with a mounting plate 33, and the positioning screw 4 is installed on the top of the mounting plate 33. The mounting seat 5 is hinged at the top of the mounting plate 33, and the positioning screw 4 is located in the sliding groove 51 of the mounting seat 5 after installation.

[0053] When the rod body 32 is in a horizontal position, the position of the rangefinder 6 on the horizontal plane needs to be adjusted, and the mounting base 5 can be rotated to rotate it. During the rotation process, the positioning screw 4 further limits the mounting base 5 to improve the stability during the rotation process.

[0054] In one embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, the mounting seat 5 includes: a rotating plate 52 and a mounting plate 53. The rotating plate 52 is rotatably mounted on the mounting plate 33, and the sliding groove 51 is arranged on the rotating plate 52. The mounting plate 53 is arranged on one side of the rotating plate 52, and the rangefinder 6 is mounted on the mounting plate 53. When the rotating plate 52 is installed, the rotating plate 52 drives the mounting plate 53 to rotate, and drives the rangefinder 6 to adjust the angle position during the rotation process.

[0055] When in use, the rotating plate 52 rotates around the hinge between the rotating plate 52 and the mounting plate 33. During the rotation process, the sliding groove 51 provided on the rotating plate 52 cooperates with the positioning screw 4 to improve the stability during the rotation process. The mounting plate 53 is installed at the other end of the rotating plate 52 to facilitate the detection of the rangefinder 6.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device for quickly determining the zero position of a seed crystal in a single crystal furnace, characterized in that: include: A connecting piece, wherein the connecting piece is provided with a connecting opening for connecting with a weight; A connecting seat, arranged on the outer side wall of the connecting piece; A connecting rod assembly, one end of which is hinged to the connecting seat; a positioning screw mounted on the other end of the connecting rod assembly; A mounting seat, rotatably mounted on the other end of the connecting rod assembly, wherein the mounting seat is provided with a sliding groove matched with the positioning screw; The rangefinder is mounted on the mounting base.

2. The device for quickly determining the zero position of seed crystal in a single crystal furnace according to claim 1, characterized in that: The connecting piece is in a cylindrical structure, and the connecting opening is provided along the axial direction of the connecting piece.

3. The device for quickly determining the zero position of seed crystal in a single crystal furnace according to claim 1, characterized in that: A locking assembly is provided at the connection between the connecting seat and the connecting rod assembly.

4. The device for quickly determining the zero position of seed crystal in a single crystal furnace according to claim 1, characterized in that: The connecting rod assembly comprises: An articulated seat, articulated with the connecting seat; A rod body, one end of which is connected to the connecting seat; The mounting plate is arranged at the other end of the rod body, the positioning screw is arranged on the top of the mounting plate, and the mounting seat is rotatably mounted on the mounting plate.

5. The device for quickly determining the zero position of seed crystal in a single crystal furnace according to claim 1, characterized in that: The mounting base comprises: A rotating plate, rotatably mounted on the connecting rod assembly, wherein the sliding groove is arranged on the rotating plate; A mounting plate, arranged on one side of the rotating plate, and the rangefinder is mounted on the mounting plate; Wherein, after the rotating plate is installed, the rotating plate drives the mounting plate to rotate, and during the rotation process, the rangefinder is driven to adjust the angle position.

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