Quartz plate graphite jig

Abstract

The utility model discloses a quartz plate graphite jig, and particularly relates to the field of quartz boat processing equipment, which comprises a base used for being connected with a welding workstation; the base plate is connected to the base, and a gap with adjustable width is formed between the base plate and the base; the graphite plate is connected to the substrate; the heat dissipation opening penetrates through the base, the substrate and the graphite plate, and the heat dissipation opening and the gap are communicated with the external environment; the clamping piece comprises a placement hole and a vacuum suction nozzle, the placement hole penetrates through the base, the base plate and the graphite plate, and the vacuum suction nozzle communicated with an external vacuum pump is arranged in the placement hole and used for adsorbing a quartz plate located on the graphite plate. The hot working area can be replaced according to needs, production resources are saved, heat dissipation channels are formed among the gaps, the heat dissipation openings and the external environment, heat is easy to dissipate, and damage of heat concentration to deformation of the base, the base plate and the graphite plate in the jig is reduced.

Description

Technical Field

[0001] This utility model relates to the field of quartz boat processing equipment, and more specifically, to a quartz plate graphite jig. Background Technology

[0002] Quartz plate welding fixtures are mechanisms used to hold quartz plates during quartz boat welding. Existing fixtures consist of a base and a graphite plate that are fitted together. The base is typically made of easily machinable metal, while the graphite plate is chosen as a backing plate due to its excellent high-temperature resistance. The quartz plate is fixed to the graphite plate before welding.

[0003] During welding, the high temperature causes the base and the graphite plate, which have different coefficients of thermal expansion, to expand to different degrees. This can cause deformation of the graphite plate or the base, affecting the precision of the quartz boats welded later in a batch. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a quartz plate graphite fixture. The technical problem to be solved by this utility model is: how to reduce the deformation of the base and graphite plate due to thermal expansion during continuous welding.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quartz plate graphite fixture, comprising a base for connection to a welding workstation; a substrate connected to the base, with an adjustable gap between the substrate and the base; a graphite plate connected to the substrate; a heat dissipation vent penetrating the base, substrate, and graphite plate, the heat dissipation vent and the gap communicating with the external environment; and a clamping component comprising a mounting hole and a vacuum nozzle, the mounting hole penetrating the base, substrate, and graphite plate, and the vacuum nozzle communicating with an external vacuum pump being disposed in the mounting hole for adsorbing the quartz plate located on the graphite plate.

[0006] In a preferred embodiment, threaded holes are provided at corresponding positions on the base and the substrate, and several shims can be placed between the base and the substrate. The bolt passes through the shims and is threadedly connected to the threaded holes on the base and the substrate.

[0007] In a preferred embodiment, the base and the substrate are made of steel plate.

[0008] In a preferred embodiment, the graphite plate includes a main board and a sub-board, both of which are detachably connected to the substrate, with the sub-board located at the four corners of the main board.

[0009] In a preferred embodiment, the four corners of the main board are recessed inward to form right-angled edges, and the side of the sub-board can fit and contact the corresponding right-angled edges.

[0010] In a preferred embodiment, the motherboard is positioned by a positioning component, which includes a bottom first positioning member, a bottom second positioning member, and a shoulder positioning member. The bottom first positioning member is connected to the base, and the bottom second positioning member and the shoulder positioning member are both connected to the substrate. The bottom second positioning member abuts against the cross-shaped lower end face of the motherboard and is used to abut against the two shoulders of the motherboard.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. The graphite plate adopts a split structure, with the flame-treated area and non-flame-treated area designed separately. The flame-treated area can be replaced as needed, saving production resources.

[0013] 2. The graphite plate and the substrate are integrated by threaded fasteners, which facilitates synchronous and precise position adjustment.

[0014] 3. The quartz plate is attached to the graphite plate by vacuum adsorption, making it easy to install and remove.

[0015] 4. A heat dissipation channel is formed between the gap, heat dissipation vent and the external environment, which makes it easy for heat to dissipate and reduces the damage caused by heat concentration to the base, base plate and graphite plate in the fixture. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the technical solution of this utility model and constitute a part of this utility model. The embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0017] Figure 1 This is a structural diagram of the quartz plate graphite fixture of this utility model.

[0018] Figure 2 This is a structural diagram of the back of the fixture of this utility model.

[0019] Figure 3 This is a schematic diagram showing the distribution of the positioning components in this utility model.

[0020] Figure 4 This is a schematic diagram of the split design of the graphite plate in this utility model.

[0021] The attached figures are labeled as follows: 10, base; 20, substrate; 30, graphite plate; 31, main board; 32, sub-board; 40, heat dissipation vent; 50, positioning component; 51, bottom first positioning component; 52, bottom second positioning component; 53, shoulder positioning component; 60, clamping component; 61, mounting hole; 62, vacuum nozzle. Detailed Implementation

[0022] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that the description of this disclosure will be more complete and fully convey the concept of the exemplary embodiments to those skilled in the art. The drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted.

[0023] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more exemplary embodiments. Numerous specific details are provided in the following description to give a full understanding of exemplary embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced with one or more of the specific details omitted, or other methods, components, steps, etc., can be employed. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this disclosure.

[0024] Example 1

[0025] like Figure 1 , Figure 2 and Figure 4 A quartz plate graphite fixture includes a base 10, a substrate 20, a graphite plate 30, a heat dissipation vent 40, and a clamping component 60.

[0026] The base 10 is generally made of metal and serves as the load-bearing component of the entire fixture. It is connected to the welding workstation via connectors, and the connection method is existing technology.

[0027] The substrate 20 itself has a certain degree of heat insulation. Compared with the direct bonding installation of the base 10 and the graphite plate 30, the presence of the substrate 20 can play a role in heat insulation.

[0028] Both the base 10 and the base plate 20 are made of thick steel plates, which have strong resistance to high temperature expansion and can play a role in heat insulation from the material itself.

[0029] The graphite plate 30, substrate 20, and base 10 are detachably connected. The connection method can be the existing threaded connection method. The quartz plate to be processed can be detachably connected to the graphite plate 30 through a clamp.

[0030] A heat dissipation vent 40 is provided through the middle of the base 10, the substrate 20 and the graphite plate 30. The heat dissipation vent 40 is used to improve the heat dissipation effect of the entire fixture and reduce the degree of deformation of the base 10, the substrate 20 and the graphite plate 30 caused by heat concentration.

[0031] Preferably, threaded holes are provided at the four corners of the base 10 and the substrate 20, and bolts can be used to connect the two through the corresponding threaded holes. During the connection process, shims are filled into the gap between the base 10 and the substrate 20 to separate the base 10 and the substrate 20. The more shims there are, the wider the gap is, and a heat dissipation channel is formed between the gap, the heat dissipation vent 40 and the external environment, so that heat can be easily dissipated.

[0032] Furthermore, the fixture is a clamping component 60, including a mounting hole 61 and a vacuum nozzle 62. The mounting hole 61 is formed through the base 10, the substrate 20, and the graphite plate 30. The vacuum nozzle 62 is placed in the mounting hole 61 and fixed. The vacuum nozzle 62 is connected to an external negative pressure machine. After the quartz plate is placed against the surface of the graphite plate 30, the negative pressure machine is turned on, allowing the negative pressure machine to create negative pressure through the mounting hole 61 to firmly adsorb the quartz plate onto the surface of the graphite plate 30. In addition, compressed air is ejected during operation, which can create convection on the back of the fixture.

[0033] The combined effect of the two heat dissipation methods mentioned above will remove a large amount of heat, preventing heat accumulation in the fixture and keeping it within a certain temperature range, thus ensuring that the fixture can operate for a long time.

[0034] In short, this embodiment increases the heat dissipation space, improves the heat dissipation efficiency of the fixture during use, and reduces the damage caused by heat concentration to the base 10, substrate 20, and graphite plate 30 in the fixture, thus ensuring the welding quality of quartz plates welded later in the same batch to a certain extent. In addition, the use of vacuum adsorption for clamping is more traceless and less prone to damage than the existing method of using metal clamps, providing better protection for the quartz plates.

[0035] Example 2

[0036] like Figure 1 , Figure 3 , Figure 4 Based on Example 1, the graphite plate 30 is further divided into a flame-working zone and a non-flame-working zone. The flame-working zone refers to the area that is continuously exposed to high temperatures during the welding process, with a flame temperature of approximately 1000°C.

[0037] Taking the welding process of quartz boats as an example, the following problems may occur in the heat treatment zone after long-term use:

[0038] 1. After firing multiple quartz boats, the graphite plate 30 corresponding to the grooved bar portion will be covered with molten quartz. After repeatedly removing the molten material, pits will appear on the surface of the graphite plate 30.

[0039] 2. During the preheating process of the graphite plate 30, the welding torch will cause ablation of the preheated part, and repeated use will produce pits.

[0040] The pits will continue to grow larger with each use, causing bulges to appear on the back of the quartz plate after firing. This results in dimensional deviations in the quartz boat, making the graphite plate 30 need to be replaced more frequently.

[0041] To solve the above problems, this embodiment designs the graphite plate 30 as a split type, including a main board 31 and a sub-board 32, with the sub-board 32 distributed at the four corners of the main board 31.

[0042] Both the main board 31 and the sub-board 32 are connected to the base plate 20 by threaded fasteners, and need to be positioned by the positioning component 50 during installation.

[0043] The positioning assembly 50 includes a bottom first positioning member 51, a bottom second positioning member 52, and a shoulder positioning member 53. The bottom first positioning member 51 is fixed to the bottom of the base 10 by a pin and an internal hex bolt, serving to lift and position the base plate 20 and the main plate 31 from below. The bottom second positioning member 52 is connected to the base plate 20 by a threaded fastener, and its side is in contact with the bottom surface of the main plate 31, serving to position the main plate 31 from below. The shoulder positioning member 53 is connected to the base plate 20 by a threaded fastener, and its periphery is in contact with the periphery of the shoulder positioning groove opened on the main plate 31, thereby serving to position the main plate 31. After the main plate 31 is fixed in position, the sub-plates 32 are installed around the main plate 31 in sequence and fixed with threaded fasteners.

[0044] Preferably, the main board 31 is cross-shaped, with a right-angled side formed at the shoulder of the cross shape. The right-angled side facilitates the positioning and installation of the rectangular sub-board 32.

[0045] Preferably, the bottom second positioning member 52 and the shoulder positioning member 53 are both semi-embedded to press the motherboard 31 onto the substrate 20 to fix the motherboard 31 and the substrate 20.

[0046] This embodiment focuses on solving the problem of resource waste caused by the different usage levels of the fire-treated and non-fire-treated areas in the graphite plate 30. The graphite plate 30 is designed as a combination of a main board 31 and a sub-board 32. Only the sub-board 32 needs to be replaced when necessary, which can save some resources of the main board 31. Moreover, due to the presence of the positioning component 50, the installation is simple and the accuracy is also met.

[0047] The technical effects brought about by this utility model are as follows:

[0048] 1. The graphite plate 30 adopts a split structure, which separates the flame-working zone and the non-flame-working zone. The flame-working zone can be replaced as needed, saving production resources.

[0049] 2. The graphite plate 30 and the substrate 20 are integrated by threaded fasteners, which facilitates synchronous and precise position adjustment.

[0050] 3. The quartz plate is attached to the graphite plate 30 by vacuum adsorption, which makes it easy to install and remove.

[0051] 4. A heat dissipation channel is formed between the gap, the heat dissipation vent 40 and the external environment, which makes it easy for heat to dissipate and reduces the damage of heat concentration to the deformation of the base 10, the base plate 20 and the graphite plate 30 in the fixture.

[0052] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

[0053] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0054] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0055] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quartz plate graphite fixture, characterized in that... include: Base (10) for connecting to the welding workstation; The substrate (20) is connected to the base (10) and there is an adjustable gap between the substrate (20) and the base (10); A graphite plate (30) is attached to a substrate (20); A heat dissipation vent (40) is opened through the base (10), the substrate (20), and the graphite plate (30), and the heat dissipation vent (40) and the gap are connected to the external environment; The clamping member (60) includes a mounting hole (61) and a vacuum nozzle (62). The mounting hole (61) is opened through the base (10), the substrate (20) and the graphite plate (30). The vacuum nozzle (62), which is connected to an external vacuum pump, is disposed in the mounting hole (61) and is used to adsorb the quartz plate located on the graphite plate (30).

2. The quartz plate graphite fixture according to claim 1, characterized in that: Threaded holes are provided at corresponding positions on the base (10) and the substrate (20). Several shims can be placed between the base (10) and the substrate (20). The bolt passes through the shims and is threadedly connected to the threaded holes on the base (10) and the substrate (20).

3. A quartz plate graphite fixture according to claim 1 or 2, characterized in that: The base (10) and the substrate (20) are made of steel plate.

4. The quartz plate graphite fixture according to claim 1, characterized in that: The graphite plate (30) includes a main plate (31) and a sub-plate (32). The main plate (31) and the sub-plate (32) are detachably connected to the substrate (20). The sub-plate (32) is located at the four corners of the main plate (31).

5. A quartz plate graphite fixture according to claim 4, characterized in that: The four corners of the main board (31) are recessed inward to form right-angled edges, and the side of the sub-board (32) can be in contact with the corresponding right-angled edges.

6. A quartz plate graphite fixture according to claim 4, characterized in that: The motherboard (31) is positioned by a positioning component (50). The positioning component (50) includes a bottom first positioning component (51), a bottom second positioning component (52), and a shoulder positioning component (53). The bottom first positioning component (51) is connected to the base (10), and the bottom second positioning component (52) and the shoulder positioning component (53) are both connected to the substrate (20). The bottom second positioning component (52) is in contact with the lower end face of the cross-shaped motherboard (31), and the bottom second positioning component (52) is used to contact the two shoulders of the motherboard (31).

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