Rapid die changing tool for monocrystalline silicon graphite splicing heater

Abstract

The utility model relates to the technical field of monocrystalline silicon processing, in particular to a quick die changing tool for a monocrystalline silicon graphite splicing heater, which is provided with external shielding protection for a mounting part, so that the structure is prevented from being polluted, and the reliability is improved. Comprising a graphite base, installation screws, a guide frame, nuts, a tool body, a sleeve groove, a guide groove, a connecting strip, an outer cover piece, a dustproof plug and an inner groove, the middle sides of the left portion and the right portion of the top end of the graphite base are connected with the bottom ends of the installation screws respectively, the nuts are movably installed on the outer sides of the installation screws in a screwed mode, and the middle of the top end of the graphite base is connected with the bottom end of the guide frame; an inner groove is formed in the middle of the top end of the tool body, the left middle side of the inner groove in the top end of the tool body is connected with the bottom side of a connecting strip, the top side of the connecting strip is connected with the middle of one side of an outer cover piece, and the inner side of the outer cover piece is connected with the outer side of a dustproof plug. The left side and the right side of the bottom of the inner groove in the tool body are each provided with a set of sleeve grooves.

Description

Technical Field

[0001] This utility model relates to the technical field of monocrystalline silicon processing, specifically to a quick mold-changing tooling for a monocrystalline silicon graphite splicing heater. Background Technology

[0002] Monocrystalline silicon, as a relatively reactive non-metallic element crystal, is an important component of crystalline materials and is at the forefront of new material development. The manufacturing process of monocrystalline silicon involves the following steps: quartz sand – metallurgical-grade silicon – purification and refining – deposition of polycrystalline silicon ingots – monocrystalline silicon – silicon wafer cutting. Its main applications are as a semiconductor material and in solar photovoltaic power generation and heating.

[0003] In monocrystalline silicon production, graphite main heaters are required. Existing solutions include a quick-change tooling for monocrystalline silicon graphite splicing heaters, as described in patent publication number CN221066802U. This tooling includes a graphite base and a fixture body mounted on the graphite base. The fixture body has an adsorption channel, and an air inlet connected to the adsorption channel is located at its upper end. This design utilizes leftover scrap material after product cutting as the fixture body for splicing heaters. The fixture features adsorption channels, air openings, and a universal positioning base on the worktable. Positioning pins are used between the base and the fixture body, eliminating the need for adjustments during subsequent mold changes. When splicing heaters have different inner diameters, gaps can be filled by applying adhesive paper. This allows for multi-type compatibility; only one graphite base is needed, and splicing heaters with similar inner diameters can directly use a single fixture body. Furthermore, it facilitates robotic clamping, reducing human intervention time. The utilization rate of graphite tooling material is increased by more than three times, enabling quick mold changes and improving processing efficiency by 15%.

[0004] However, this structure suffers from a lack of protection on the surface of the installation structure, making it prone to contamination, which limits installation and results in poor reliability. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a quick mold-changing fixture for a single-crystal silicon graphite splicing heater, which features external shielding protection for the installation area to prevent contamination of the structure and improve reliability.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a quick mold-changing fixture for a monocrystalline silicon graphite splicing heater, comprising a graphite base, mounting screws, a guide frame, a nut, a fixture body, a sleeve groove, a guide groove, a connecting strip, an outer cover, a dust plug, and an inner groove. The top left and right sides of the graphite base are respectively connected to the bottom ends of a set of mounting screws. Nuts are movably screwed onto the outer sides of the mounting screws. The top middle of the graphite base is connected to the bottom end of the guide frame. An inner groove is provided in the middle of the top of the fixture body. The left middle side of the inner groove at the top of the fixture body is connected to the bottom side of the connecting strip. The top side of the connecting strip is connected to the middle of one side of the outer cover. The inner side of the outer cover is connected to the outer side of the dust plug. A guide groove is provided in the middle of the bottom of the inner groove inside the fixture body, and a set of sleeve grooves are provided on the left and right sides of the bottom of the inner groove inside the fixture body.

[0009] Preferably, it also includes a mounting slot, wherein a set of mounting slots is provided in the inner middle part of the left and right sides of the graphite base.

[0010] Preferably, it also includes a chamfered groove, wherein a chamfered groove is provided on the lower side of the guide groove at the bottom end of the tooling body.

[0011] Preferably, it also includes chamfering, with a set of chamfers provided on the outer side of the top of each set of mounting screws.

[0012] Preferably, it also includes a hook ring, with the middle of the other side of the outer cover piece connected to the inner side of the hook ring.

[0013] Preferably, it also includes an information board, with the upper left side of the tooling body connected to the inner side of the information board.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a quick mold-changing tooling for a single-crystal silicon graphite splicing heater, which has the following beneficial effects:

[0016] During installation, the required tooling body is fitted onto the graphite base, slides downwards through the guide groove on the outside of the guide frame, and the two sets of sleeves are respectively fitted onto the outside of the two sets of mounting screws, with the upper side of each set of mounting screws protruding above the sleeve. Then, nuts are screwed onto the protruding side, tightening it against the bottom of the inner groove to fix the tooling body. After that, with the connecting strip connected, the outer cover is turned downwards and sealed into the inner groove by the dust plug. By setting external shielding protection for the installation part, the structure is prevented from being contaminated, thus improving reliability. Attached Figure Description

[0017] Figure 1 This is a front upper axonometric view of the structural schematic diagram of this utility model;

[0018] Figure 2 This is a lower isometric view of the structural schematic diagram of this utility model;

[0019] Figure 3This utility model Figure 1 Front view;

[0020] Figure 4 This utility model Figure 1 The left view.

[0021] The following are labeled in the attached diagram: 1. Graphite base; 2. Mounting slot; 3. Mounting screw; 4. Guide frame; 5. Nut; 6. Tooling body; 7. Sleeve groove; 9. Guide groove; 10. Connecting strip; 11. Outer cover plate; 12. Dust plug; 13. Inner groove; 14. Chamfered groove; 15. Chamfer; 16. Hook ring; 17. Information board. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Please see Figure 1-4 A quick-change tooling for a monocrystalline silicon graphite spliced ​​heater includes a graphite base 1, mounting screws 3, a guide frame 4, a nut 5, a tooling body 6, a sleeve groove 7, a guide groove 9, a connecting strip 10, an outer cover 11, a dust plug 12, and an inner groove 13. The top left and right sides of the graphite base 1 are respectively connected to the bottom ends of a set of mounting screws 3. Nuts 5 are movably screwed onto the outer sides of the mounting screws 3. The top middle of the graphite base 1 is connected to the bottom end of the guide frame 4. An inner groove 13 is provided in the top middle of the tooling body 6. The left middle side of the inner groove 13 at the top of the tooling body 6 is connected to the bottom side of the connecting strip 10. The top side of the connecting strip 10 is connected to the middle of one side of the outer cover 11. The inner groove 13 is located in the top middle of the tooling body 6. The tool body 6 is connected to the outside of the dust plug 12. The bottom of the inner groove 13 inside the tool body 6 is provided with a guide groove 9, and the bottom of the inner groove 13 inside the tool body 6 is provided with a set of sleeve grooves 7 on the left and right sides respectively. During installation, the tool body 6 is inserted above the graphite base 1, slides downward on the outside of the guide frame 4 through the guide groove 9, and the two sets of sleeve grooves 7 are respectively fitted on the outside of the two sets of mounting screws 3, and the upper side of each set of mounting screws 3 protrudes above the sleeve groove 7. Then, the protruding side is screwed with nuts 5 and tightened against the bottom of the inner groove 13 to fix the tool body 6. Then, under the connection of the connecting strip 10, the outer cover 11 is turned downward and sealed into the inner groove 13 by the dust plug 12.

[0025] It also includes a mounting slot 2, with a set of mounting slots 2 respectively provided in the inner middle part of the left and right sides of the graphite base 1; the mounting slots 2 can be used to cooperate with the outside to fix the graphite base 1 in the corresponding position of the worktable, thereby improving practicality.

[0026] It also includes a chamfered groove 14. A chamfered groove 14 is provided on the lower side of the guide groove 9 at the bottom end of the tooling body 6. The chamfered groove 14 can widen the lower part of the guide groove 9, making it easier for the guide groove 9 to fit into the upper part of the guide frame 4, thus improving convenience.

[0027] It also includes a chamfer 15, with a chamfer 15 set on the outer side of the top of each set of mounting screws 3; the chamfer 15 can reduce the upper side of the mounting screw 3, making it easier for the sleeve 7 to fit into the outer side of the mounting screw 3, thus improving convenience.

[0028] It also includes a hook 16, with the middle of the other side of the outer cover 11 connected to the inner side of the hook 16; by hooking the hook 16, the outer cover 11 can be moved to assist in opening and closing the dust plug 12 and improve convenience.

[0029] It also includes an information board 17, with the upper left side of the tooling body 6 connected to the inner side of the information board 17; the information board 17 can display information about the graphite base 1, making it easier to read and confirm its use, thus improving convenience.

[0030] In summary, when using a quick-change tooling for a monocrystalline silicon graphite splicing heater, the graphite base 1 can be fixed to the corresponding position on the worktable via the clamping slot 2. During installation, the required tooling body 6 is inserted above the graphite base 1. The lower part of the guide groove 9 is widened by the chamfered groove 14, making it easier for the guide groove 9 to slide onto the upper part of the guide frame 4. The guide groove 9 slides downward on the outside of the guide frame 4, and the upper side of the mounting screw 3 is narrowed by the chamfer 15, making it easier for the sleeve groove 7 to slide onto the outside of the mounting screw 3, so that the two sets of... The sleeve 7 is respectively fitted onto the outside of the two sets of mounting screws 3, with the upper side of each set of mounting screws 3 protruding above the sleeve 7. Then, the protruding side is screwed on by the nut 5, which is tightened against the bottom of the inner groove 13 to fix the tooling body 6. Then, under the connection of the connecting strip 10, the outer cover 11 can be connected to the hook ring 16 for movement, so that the outer cover 11 faces downward and is closed into the inner groove 13 by the dust plug 12. In addition, the information plate 17 can display information about this graphite base 1, which is convenient for reading and confirming use, and improves convenience.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these 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 quick mold-changing fixture for a monocrystalline silicon graphite spliced ​​heater, characterized in that, The fixture includes a graphite base (1), mounting screws (3), a guide frame (4), a nut (5), a tooling body (6), a sleeve groove (7), a guide groove (9), a connecting strip (10), an outer cover plate (11), a dust plug (12), and an inner groove (13). The top left and right sides of the graphite base (1) are respectively connected to the bottom ends of a set of mounting screws (3). Nuts (5) are movably screwed onto the outer side of the mounting screws (3). The top middle of the graphite base (1) is connected to the bottom end of the guide frame (4). An inner groove (13) is provided at the top center of the body (6). The left middle side of the inner groove (13) at the top of the tooling body (6) is connected to the bottom side of the connecting strip (10). The top side of the connecting strip (10) is connected to the middle side of one side of the outer cover (11). The inner side of the outer cover (11) is connected to the outer side of the dust plug (12). A guide groove (9) is provided at the bottom center of the inner groove (13) inside the tooling body (6). A set of sleeve grooves (7) are provided on the left and right sides of the bottom of the inner groove (13) inside the tooling body (6).

2. The quick mold-changing fixture for a single-crystal silicon graphite spliced ​​heater according to claim 1, characterized in that: It also includes a mounting slot (2), and a set of mounting slots (2) are respectively provided in the middle of the left and right sides of the graphite base (1).

3. The quick mold-changing fixture for a single-crystal silicon graphite spliced ​​heater according to claim 1, characterized in that: It also includes a chamfered groove (14), and a chamfered groove (14) is provided on the lower side of the guide groove (9) at the bottom end of the tooling body (6).

4. The quick mold-changing fixture for a single-crystal silicon graphite spliced ​​heater according to claim 1, characterized in that: It also includes a chamfer (15), with a chamfer (15) provided on the outer side of the top of each set of mounting screws (3).

5. The quick mold-changing fixture for a single-crystal silicon graphite spliced ​​heater according to claim 1, characterized in that: It also includes a hook (16), the middle of the other side of the outer cover (11) is connected to the inner side of the hook (16).

6. The quick mold-changing fixture for a single-crystal silicon graphite spliced ​​heater according to claim 1, characterized in that: It also includes an information board (17), the upper left side of the tooling body (6) is connected to the inner side of the information board (17).

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