Disassembling and assembling device for graphite chuck of single crystal furnace

Abstract

The utility model relates to the technical field of single crystal furnaces, in particular to a single crystal furnace graphite chuck dismounting and mounting device which comprises a fixing frame, the fixing frame is composed of a bottom plate, a first supporting plate and a second supporting plate located between the bottom plate and the first supporting plate, and the top of the first supporting plate is fixedly connected with two fixing plates. A locking part used for clamping and fixing the heavy hammer is arranged between the two fixing plates, a through hole is formed in the top of the first supporting plate, an inner threaded sleeve is connected into the through hole in an embedded mode, a threaded rod is connected into the inner threaded sleeve in a threaded mode, and a containing sleeve is fixedly connected to the top end of the threaded rod; and a clamping part for clamping and fixing the graphite chuck is arranged in the placing sleeve. According to the utility model, through the cooperation of related structures, automatic disassembly and assembly can be realized, the manual operation is reduced, the production cost is reduced, and the safety problems of scald and the like caused by contact with a high-temperature graphite chuck in a manual disassembly and assembly process are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of single crystal furnaces, in particular to a graphite chuck disassembly and assembly device for a single crystal furnace. Background Art

[0002] With the rapid development of the photovoltaic industry, the demand for monocrystalline silicon is increasing, and the single crystal furnace is one of the core equipment for producing monocrystalline silicon. Therefore, improving the productivity and product quality of the single crystal furnace has become an important demand for the development of the photovoltaic industry. The single crystal furnace uses the direct pulling method to prepare crystal rods. According to different uses, such as crystal pulling or feeding, it is necessary to change the type of chuck connected to the heavy hammer. For example, the crystal rod is fixed by the seed crystal chuck, the seed crystal chuck is screwed on the heavy hammer, and the heavy hammer is pulled up by the lifting rope to complete the crystal pulling operation.

[0003] In the traditional single crystal furnace production process, the disassembly and assembly of graphite chucks needs to be done manually. Due to the cumbersome and time-consuming disassembly and assembly process, and the risk of personnel being scalded, manual disassembly and assembly is inefficient and cannot meet the needs of large-scale production.

[0004] With the continuous development of automation technology, automatic disassembly and assembly technology has become an important development trend in the photovoltaic industry today. Automatic disassembly and assembly technology can greatly improve production efficiency and reduce the time and cost of manual operation. At the same time, it ensures the quality and accuracy of disassembly and assembly. Therefore, the development of automatic disassembly and assembly technology for single crystal furnace graphite chucks has become an important direction for the development of the photovoltaic industry. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a single crystal furnace graphite chuck disassembly and assembly device to solve the problem that the existing graphite chuck is manually disassembled and assembled by manual screwing, which has low efficiency and may cause burns.

[0006] Based on the above purpose, the utility model provides a single crystal furnace graphite chuck disassembly and assembly device, including a fixing frame, the fixing frame is composed of a bottom plate, a support plate 1 and a support plate 2 located between the bottom plate and the support plate 1, the top of the support plate 1 is fixedly connected with two fixing plates, and a locking portion for clamping and fixing a heavy hammer is provided between the two fixing plates;

[0007] A through hole is opened on the top of the support plate 1, and an internal threaded sleeve is embedded and connected in the through hole. The internal threaded sleeve is connected to a screw rod through its internal thread. The top end of the screw rod is fixedly connected to a placement sleeve, and a clamping portion for clamping and fixing the graphite chuck is provided in the placement sleeve. A rotating telescopic portion for driving the screw rod to rotate and move is provided on the bottom plate.

[0008] Preferably, the locking part includes a limit plate, which is fixedly connected between two fixed plates, and an arc block adapted to the heavy hammer is fixedly connected to the limit plate. A clamping rod is also arranged between the two fixed plates, and a bolt is fixedly connected to the end of the clamping rod. An arc-shaped through groove is provided on the fixed plate for the clamping rod to slide, and a nut is threadedly connected to the bolt.

[0009] Preferably, the clamping portion comprises two internal threaded holes symmetrically opened in the placement sleeve, the internal threaded holes are connected with threaded columns, and the ends of the threaded columns are rotatably connected with an arc plate for clamping and fixing the graphite chuck.

[0010] Preferably, a polytetrafluoroethylene plate for protecting the graphite chuck is fixedly connected to the inner side of the arc-shaped plate.

[0011] Preferably, the rotating telescopic part includes a driving machine fixedly mounted on the bottom plate, a hole through which the bottom end of the screw rod passes is opened on the second support plate, and a telescopic part is arranged between the bottom end of the screw rod and the output end of the driving machine.

[0012] Preferably, the driving machine is an integrated structure of a forward and reverse rotating motor and a reducer.

[0013] Preferably, the telescopic portion comprises two connecting plates hinged to each other, wherein an end of one connecting plate is hinged to the bottom end of the screw rod, and an end of the other connecting plate is hinged to the output end of the driving machine.

[0014] The beneficial effects of the utility model: the utility model provides a single crystal furnace graphite chuck disassembly and assembly device, the locking part is used to clamp and fix the weight, and the clamping part is used to clamp and fix the graphite chuck, that is, the weight and the graphite chuck can be fixed respectively, the rotating telescopic part drives the screw to rotate, and with the cooperation of the internal threaded sleeve, the screw can rotate and move in the internal threaded sleeve, thereby driving the graphite chuck placed in the sleeve to rotate and move, and then the graphite chuck can be unscrewed or screwed on from the weight, avoiding manual screwing, avoiding scalding, and improving operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model 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 embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0017] Figure 2A cross-sectional view of an embodiment of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of an embodiment of the utility model from a left perspective;

[0019] Figure 4 This is a schematic diagram of the exploded structure of the screw, placement sleeve and clamping part of the embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the fixing plate and the locking part of the embodiment of the utility model;

[0021] Figure 6 It is a schematic structural diagram of the placement sleeve and the clamping part of an embodiment of the utility model.

[0022] In the figure: 1, fixing frame; 101, bottom plate; 102, support plate 1; 103, support plate 2; 2, clamping part; 201, threaded column; 202, arc plate; 203, polytetrafluoroethylene plate; 3, rotating telescopic part; 301, driving machine; 302, telescopic part; 303, connecting plate; 4, fixing plate; 5, heavy hammer; 6, locking part; 601, limit plate; 602, clamping rod; 603, bolt; 604, nut; 7, internal thread sleeve; 8, screw; 9, graphite chuck; 10, placement sleeve. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0024] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, a single crystal furnace graphite chuck disassembly and assembly device includes a fixing frame 1, the fixing frame 1 is composed of a bottom plate 101, a support plate 1 102 and a support plate 2 103 located between the bottom plate 101 and the support plate 1 102, the top of the support plate 1 102 is fixedly connected with two fixing plates 4, and a locking portion 6 for clamping and fixing a weight 5 is provided between the two fixing plates 4;

[0026] A through hole is opened on the top of the support plate 102, and an internal threaded sleeve 7 is embedded and connected in the through hole. The internal threaded sleeve 7 is internally threaded with a screw 8. The top of the screw 8 is fixedly connected to a placement sleeve 10, and a clamping part 2 for clamping and fixing a graphite chuck 9 is provided in the placement sleeve 10. The graphite chuck 9 is threadedly screwed on the heavy hammer 5. A rotating telescopic part 3 for driving the screw 8 to rotate and move is provided on the bottom plate 101.

[0027] The rotating telescopic part 3 drives the screw 8 to rotate, and with the cooperation of the internal threaded sleeve 7, the screw 8 can realize telescopic and rotating movement to meet the disassembly and assembly of the threaded structure between the graphite chuck 9 and the heavy hammer 5. The heavy hammer 5 drives the graphite chuck 9 to descend. When the graphite chuck 9 descends into the placement sleeve 10, the clamping part 2 can clamp and fix the graphite chuck 9, and the locking part 6 can also fix the heavy hammer 5. The rotating telescopic part 3 provides power for the rotation and extension of the screw 8, and the placement sleeve 10 rotates and moves to complete the threaded disassembly and assembly of the graphite chuck 9 and the heavy hammer 5.

[0028] In a preferred embodiment of the present utility model, the locking part 6 includes a limit plate 601, which is fixedly connected between the two fixed plates 4. An arc block adapted to the heavy hammer 5 is fixedly connected to the limit plate 601. A clamping rod 602 is also arranged between the two fixed plates 4. An arc groove can be opened on one side of the clamping rod 602 to increase the contact area between the clamping rod 602 and the heavy hammer. With the cooperation of the clamping rod 602 and the arc block, the locking and fixing effect of the heavy hammer 5 is better. The end of the clamping rod 602 is fixedly connected with a bolt 603. An arc through groove is opened on the fixed plate 4 for the clamping rod 602 to slide. A nut 604 is threadedly connected to the bolt 603.

[0029] When disassembling and assembling the graphite chuck 9, it is necessary to fix the weight 5. The weight 5 drives the graphite chuck 9 to descend. When the graphite chuck 9 descends to the placement sleeve 10, the weight 5 is located between the two fixing plates 4, and the weight 5 is limited and fixed by the locking part 6. The operation method is to first loosen the nut 604 to release the lock on the bolt 603, so that the bolt 603 can slide in the arc groove, and then push the clamping rod 602 to make the clamping rod 602 abut against the weight 5. At this time, the weight 5 is located between the arc block and the clamping rod 602, and then tighten the nut 604 to make the nut 604 abut against the fixing plate 4, lock the bolt 603, that is, lock the clamping rod 602, so that the weight 5 can be clamped and fixed.

[0030] In another preferred embodiment of the utility model, the clamping portion 2 includes two internal threaded holes symmetrically opened in the placement sleeve 10, the internal threaded holes are connected to a threaded column 201, and the end of the threaded column 201 is rotatably connected to an arc plate 202 for clamping and fixing the graphite chuck 9 through a bearing sleeve.

[0031] When disassembling and assembling the graphite chuck 9, the graphite chuck 9 needs to be fixed, and the heavy hammer 5 drives the graphite chuck 9 to descend. When the graphite chuck 9 descends to the placement sleeve 10, the graphite chuck 9 can be clamped and fixed by the clamping part 2. The operation method is to rotate the threaded column 201. The end of the threaded column 201 is fixedly connected with a protrusion, which facilitates the rotation of the threaded column 201. The threaded column 201 rotates in the internal threaded hole, and because the threaded column 201 is rotatably connected to the arc plate 202, the rotation of the threaded column 201 can drive the arc plate 202 to move. With the cooperation of the two arc plates 202, the graphite chuck 9 can be clamped and fixed, which is convenient for the subsequent telescopic rotation of the screw rod 8 to drive the placement sleeve 10 to rotate, so as to realize the removal of the graphite chuck 9 from the heavy hammer 5.

[0032] In another preferred embodiment of the utility model, a polytetrafluoroethylene plate 203 for protecting the graphite chuck 9 is fixedly connected to the inner side of the arc plate 202. The polytetrafluoroethylene plate 203 can protect the graphite chuck 9 and avoid metal friction caused by the arc plate 202 on the graphite chuck 9.

[0033] It should be noted that the rotating telescopic part 3 includes a driving machine 301 fixedly mounted on the base plate 101 , a hole through which the bottom end of the screw 8 passes is opened on the support plate 103 , and a telescopic part 302 is arranged between the bottom end of the screw 8 and the output end of the driving machine 301 .

[0034] It should be noted that the driving machine 301 is an integrated structure of a forward and reverse motor and a reducer. The reduction gear is provided to prevent the forward and reverse motor from rotating too fast when it starts to rotate.

[0035] Based on the above embodiment, the telescopic portion 302 includes two mutually hinged connecting plates 303, wherein the end of one connecting plate 303 is hinged to the bottom end of the screw 8, and the end of the other connecting plate 303 is hinged to the output end of the driving machine 301. When the output end of the driving machine 301 rotates, since the two connecting plates 303 are hinged to each other, when the output end of the driving machine 301 rotates, the two mutually hinged connecting plates 303 will also be driven to rotate, and since one of the connecting plates 303 is hinged to the screw 8, the screw 8 will also be driven to rotate. Since the screw 8 is threadedly connected to the internal threaded sleeve 7, the rotation of the screw 8 will rotate in the internal threaded sleeve 7, and the two connecting plates 303 are hinged, so that the rotation of the screw 8 will not be hindered, that is, when the screw 8 rotates, the two connecting plates 303 will move closer to or spread out around the hinge, so that the screw 8 can move while rotating, providing rotation and telescopic power for disassembling and assembling the graphite chuck 9.

[0036] When the graphite chuck 9 needs to be disassembled, the weight 5 drives the graphite chuck 9 to descend, and the graphite chuck 9 descends into the placement sleeve 10. By rotating the threaded column 201, the threaded column 201 rotates and drives the arc plate 202 to move. The two arc plates 202 cooperate to clamp and fix the graphite chuck 9. When the weight 5 is fixed, the nut 604 is first loosened to release the lock on the bolt 603, so that the bolt 603 can slide in the arc groove, and then the clamping rod 602 is pushed to make the clamping rod 602 abut against the weight 5. At this time, the weight 5 is located between the arc block and the clamping rod 602, and then the nut 604 is tightened. The nut 604 abuts against the fixed plate 4, and then the driving machine 301 is started, which will drive the screw 8 to rotate in the opposite direction with the cooperation of the two connecting plates 303. Since the screw 8 is threadedly connected to the internal threaded sleeve 7, the rotation of the screw 8 will rotate inside the internal threaded sleeve 7, and the two connecting plates 303 are hinged, so that the rotation of the screw 8 will not be hindered, that is, when the screw 8 rotates, the two connecting plates 303 will move closer to or spread out around the hinge, so that the screw 8 can move while rotating, thereby driving the placement sleeve 10 and the clamped graphite chuck 9 to rotate and move downward, so that the graphite chuck 9 can be removed.

[0037] When it is necessary to install the graphite chuck 9 on the weight 5, first lower the weight 5 to an appropriate position, loosen the nut 604, move the clamping rod 602 to clamp and fix the weight 5, then place the graphite chuck 9 in the placement sleeve 10, rotate the threaded column 201, drive the arc plate 202 to move, so that the arc plate 202 clamps and fixes the graphite chuck 9. When the graphite chuck 9 is located below the weight 5, start the driving machine 301, and the driving machine 301 drives the screw rod 8 to rotate forward. With the cooperation of the two mutually hinged connecting plates 303 and the internal threaded sleeve 7, the screw rod 8 can drive the placement sleeve 10 to move upward while rotating, so that the graphite chuck 9 can be screwed onto the weight.

[0038] In summary, the disassembly and assembly of the graphite chuck by setting the disassembly and assembly device has the following advantages:

[0039] 1. High degree of automation: it can realize automatic disassembly and assembly, reduce manual operation and reduce production costs;

[0040] 2. High safety: It can accurately control the disassembly and assembly, avoiding safety problems such as burns caused by contact with the high-temperature graphite chuck during manual disassembly and assembly;

[0041] 3. Fast disassembly and assembly speed: The device combines mechanical structure and transmission system, has the characteristics of fast response and efficient action, greatly shortens the cooling and disassembly time, and improves production efficiency;

[0042] 4. High precision and good stability: The guide shelving device ensures the stability and precision of the graphite joint during the disassembly and assembly process, avoiding equipment damage and production accidents caused by unstable operation of personnel.

[0043] 5. Strong adaptability: The device can adapt to various types of graphite chucks and has strong adaptability;

[0044] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0045] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A single crystal furnace graphite chuck disassembly and assembly device, comprising a fixing frame (1), wherein the fixing frame (1) is composed of a bottom plate (101), a support plate 1 (102), and a support plate 2 (103) located between the bottom plate (101) and the support plate 1 (102), characterized in that: The top of the support plate 1 (102) is fixedly connected to two fixing plates (4), and a locking portion (6) for clamping and fixing the weight (5) is provided between the two fixing plates (4); The support plate 1 (102) has a through hole at the top, and an internal threaded sleeve (7) is embedded and connected in the through hole. The internal threaded sleeve (7) is internally threadedly connected to a screw rod (8). The top end of the screw rod (8) is fixedly connected to a placement sleeve (10), and a clamping portion (2) for clamping and fixing a graphite chuck (9) is provided in the placement sleeve (10). The bottom plate (101) is provided with a rotating telescopic portion (3) for driving the screw rod (8) to rotate and move.

2. A single crystal furnace graphite chuck disassembly and assembly device according to claim 1, characterized in that: The locking portion (6) comprises a limit plate (601), the limit plate (601) is fixedly connected between the two fixing plates (4), an arc block adapted to the weight (5) is fixedly connected to the limit plate (601), a clamping rod (602) is also provided between the two fixing plates (4), and a bolt (603) is fixedly connected to the end of the clamping rod (602), an arc through groove for the clamping rod (602) to slide is provided on the fixing plate (4), and a nut (604) is threadedly connected to the bolt (603).

3. The single crystal furnace graphite chuck disassembly and assembly device according to claim 1, characterized in that: The clamping portion (2) comprises two internal threaded holes symmetrically opened in the placement sleeve (10), the internal threaded holes are internally threadedly connected to a threaded column (201), and the end of the threaded column (201) is rotatably connected to an arc plate (202) for clamping and fixing the graphite chuck (9).

4. The single crystal furnace graphite chuck disassembly and assembly device according to claim 3, characterized in that: A polytetrafluoroethylene plate (203) for protecting the graphite chuck (9) is fixedly connected to the inner side of the arc-shaped plate (202).

5. The single crystal furnace graphite chuck disassembly and assembly device according to claim 1, characterized in that: The rotating telescopic part (3) comprises a driving machine (301) fixedly mounted on the bottom plate (101); a hole through which the bottom end of the screw rod (8) passes is provided on the second support plate (103); and a telescopic part (302) is provided between the bottom end of the screw rod (8) and the output end of the driving machine (301).

6. The single crystal furnace graphite chuck disassembly and assembly device according to claim 5, characterized in that: The driving machine (301) is an integrated structure of a forward and reverse motor and a reducer.

7. The single crystal furnace graphite chuck disassembly and assembly device according to claim 5, characterized in that: The telescopic portion (302) comprises two mutually hinged connection plates (303), wherein the end of one connection plate (303) is hinged to the bottom end of the screw rod (8), and the end of the other connection plate (303) is hinged to the output end of the driving machine (301).

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