Fixing jig for auxiliary welding of quartz tubes and quartz rods

Abstract

The utility model relates to the technical field of quartz welding, and discloses a fixing jig for auxiliary welding of quartz tubes and rods, which comprises a base, a support plate and a support frame are sequentially fixed on the base from bottom to top, and a clamp component is fixed on the support frame. The clamp assembly comprises two symmetrically-arranged clamping plates and a screw rod which is in threaded connection with the supporting frame and penetrates through the two clamping plates, and the screw rod is in threaded connection with a hand-screwing nut for limiting the clamping plates. The quartz tube welding fixture has the advantages that the fixture can adapt to quartz tubes and rods of different sizes and shapes, and the quartz tubes can be kept stable in the welding process.

Description

Technical Field

[0001] This utility model relates to the field of quartz welding technology, and in particular to a fixing fixture for auxiliary welding of quartz tubes and rods. Background Technology

[0002] In the semiconductor manufacturing industry, quartz tubes and rods are key materials, and their welding quality directly affects product performance and reliability. However, due to the special properties of quartz materials, such as high hardness, brittleness, and a low coefficient of thermal expansion, traditional welding methods are insufficient to meet the requirements of high-precision and high-efficiency welding. Furthermore, during the welding process, thermal stress can easily cause defects such as cracks and fractures in quartz tubes and rods, further limiting the improvement of welding quality. Therefore, developing an auxiliary welding fixture suitable for quartz tubes and rods is of great significance for improving welding quality and production efficiency.

[0003] Currently, although there are some welding fixtures, most of these existing technologies have the following problems: First, the design of the fixtures is not precise enough and cannot adapt to quartz tubes and rods of different sizes and shapes; second, the fixtures are difficult to keep stable during the welding process, which can easily lead to welding position deviations; finally, improper selection of materials for the fixtures may cause chemical reactions at high temperatures, contaminating the welding area and affecting the welding quality. Utility Model Content

[0004] The purpose of this invention is to provide a fixing fixture for auxiliary welding of quartz tubes and rods, which can adapt to quartz tubes and rods of different sizes and shapes and maintain stability during the welding process.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a fixing fixture for auxiliary welding of quartz tubes and rods, including a base, a support plate and a support frame are fixed on the base from bottom to top, the support frame is fixed with a clamping assembly, the clamping assembly includes two symmetrically arranged clamping plates and a screw threaded to the support frame and passing through the two clamping plates, the screw being threaded with a hand-tightening nut that restricts the clamping plates.

[0006] By adopting the above technical solution, two clamping plates hold the quartz tube, providing stable support for the welding work and thus improving the welding quality. The distance between the two clamping plates can be adjusted according to the size and shape of the quartz tube by using screws and hand-tightening nuts, enabling quick and accurate positioning and fixing of workpieces of various sizes, reducing the number of replacements or adjustments due to size mismatch, and improving work efficiency. At the same time, the position of the clamping plates can be directly adjusted by hand-tightening nuts, thereby simplifying the clamping operation process, reducing the reliance on professional skills, and making it easy for ordinary operators to get started.

[0007] A further feature of this invention is that the two clamping plates are provided with limiting grooves on opposite sides.

[0008] By adopting the above technical solution, the limiting groove can help accurately position the clamped quartz tube or rod, ensuring that the workpiece remains stable during the clamping process and avoiding processing errors caused by positional deviation.

[0009] A further feature of this invention is that the limiting groove is arc-shaped.

[0010] By adopting the above technical solution, the arc shape can increase the contact area between the clamping surface and the quartz tube or rod, thereby improving the clamping force and ensuring the fixation of the workpiece during the processing.

[0011] A further feature of this invention is that the clamping plate has a through hole through which the screw passes.

[0012] By adopting the above technical solution, the distance between the two clamping plates can be adjusted by moving the clamping plate on the screw, thereby achieving rapid and accurate positioning and fixing of workpieces of various sizes and reducing the number of replacements or adjustments caused by size mismatch.

[0013] A further feature of this invention is that the through holes are distributed at the four corners of the clamping plate, and the corresponding screws and hand-tightening nuts are four in number.

[0014] By adopting the above technical solution, the four hand-tightened nuts are finely adjusted together according to the diameter of the quartz tube to ensure that the clamping force is uniform and adjustable, thus ensuring the stability of the clamp.

[0015] A further feature of this invention is that one of the clamping plates near the support frame is fixed to the support frame by a fixing bolt, and the hand-tightening nut is located on the other clamping plate on the side away from the limiting groove.

[0016] By adopting the above technical solution, one side clamping plate is fixed to the support frame, the quartz tube is placed between the two clamping plates, the other side clamping plate is moved relative to the screw, and the distance between the two clamping plates is adjusted according to the size of the quartz tube. After adjustment, the clamping plates on both sides are fixed relative to each other by hand-tightening nuts for welding. Both clamping plates can be removed from the support frame for replacement or maintenance, improving the overall flexibility of the fixture.

[0017] A further feature of this invention is that the support plate is provided with a through groove and the support plate is fixed to the base by a second fixing bolt, and the support frame passes through the through groove.

[0018] By adopting the above technical solution, the support plate can also be removed from the base for maintenance.

[0019] A further feature of this invention is that the support plate and the clamping plate are made of graphite material.

[0020] By adopting the above technical solution, the parts in direct contact with the quartz tube and rod are made of graphite material. High-purity, high-density graphite material has excellent wear resistance and thermal stability, which can effectively protect the surface of the quartz tube and rod and reduce scratches and heat damage during the welding process.

[0021] A further feature of this invention is that the base and the support frame are made of metal.

[0022] By adopting the above technical solution, stainless steel can be selected as the metal material. Stainless steel has excellent corrosion resistance and can resist the erosion of various chemicals and environmental factors. It is suitable for humid or highly corrosive environments and has high strength and toughness. Using stainless steel for the support part can ensure that the fixture provides sufficient support and stability during the welding process.

[0023] The beneficial effects of this utility model are:

[0024] 1. The clamping plate is adjustable to accommodate quartz tubes and rods of different diameters, eliminating the need to change to special fixtures, greatly simplifying production operations and improving work efficiency. By simplifying the operation process, it reduces reliance on specialized skills, allowing ordinary operators to easily get started.

[0025] 2. The structure combines metal and graphite. The metal portion provides robust support, while the graphite portion, due to its excellent wear resistance and thermal stability, effectively protects the surface of the quartz tube rod, reducing scratches and heat damage during welding. By precisely controlling the pressure and temperature distribution during welding, the quality of the weld joint can be ensured, reducing the incidence of welding defects such as cracks and voids.

[0026] 3. Considering the harsh working environment, such as high temperature, humidity, and corrosive gases, the selected materials and structural design can resist the erosion of these environmental factors, ensuring the durability and stability of the fixture.

[0027] 4. The overall structure is robust and durable, and easy to clean and maintain, thus reducing the frequency of maintenance and replacements, and lowering the maintenance costs for long-term operation. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of this utility model.

[0030] Figure 2 This is a schematic diagram of the clamp assembly structure in this utility model.

[0031] In the diagram, 1 is the base; 2 is the support plate; 3 is the support frame; 4 is the clamp assembly; 41 is the clamping plate; 42 is the screw; 43 is the hand-tightening nut; 44 is the limiting groove; 45 is the through hole; 5 is the fixing bolt one; 6 is the fixing bolt two; and 7 is the through groove. Detailed Implementation

[0032] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0033] Example 1: A fixing fixture for auxiliary welding of quartz tubes and rods, such as... Figure 1-2 As shown, the device includes a base 1, from bottom to top, a support plate 2 and a support frame 3. The support frame 3 is fixed with a clamping assembly 4. The clamping assembly 4 includes two symmetrically arranged clamping plates 41 and a screw 42 threaded to the support frame 3 and passing through the two clamping plates 41. The screw 42 is threaded with a hand-tightening nut 43 that restricts the clamping plates 41. The two clamping plates 41 clamp the quartz tube, providing stable support for the welding of the quartz tube. By loosening the hand-tightening nut 43 and moving the clamping plates 41, the distance between the two clamping plates 41 can be adjusted according to the size and shape of the quartz tube, so as to achieve rapid and accurate positioning and fixing of workpieces of various sizes.

[0034] Furthermore, the two clamping plates 41 are provided with limiting grooves 44 on opposite sides. The limiting grooves 44 can help to accurately position the clamped quartz tube or rod, ensuring that the workpiece remains stable during the clamping process. The limiting grooves 44 are arc-shaped to increase the contact area between the clamping surface and the quartz tube or rod, thereby improving the clamping force.

[0035] Furthermore, the clamping plate 41 is provided with through holes 45 for the screw 42 to pass through. The through holes 45 are distributed at the four corners of the clamping plate 41. Correspondingly, there are four screws 42 and four hand-tightening nuts 43. The four hand-tightening nuts 43 are finely adjusted according to the diameter of the quartz tube to ensure that the clamping force is uniform and adjustable, and to ensure the stability of the clamp.

[0036] Furthermore, one clamping plate 41 near the support frame 3 is fixed to the support frame 3 by a fixing bolt 5, and a hand-tightened nut 43 is located on the side of the other clamping plate 41 away from the limiting groove 44. One clamping plate 41 is fixed to the support frame 3. The quartz tube is placed between the two clamping plates 41. The other clamping plate 41 is moved relative to the screw 42, and the distance between the two clamping plates 41 is adjusted according to the size of the quartz tube. After adjustment, the two clamping plates 41 are fixed relative to each other by hand-tightening nut 43 before welding.

[0037] Furthermore, the support plate 2 is provided with a through groove 7 and the support plate 2 is fixed to the base 1 by fixing bolt 2 6. The support frame 3 passes through the through groove 7 and the fixing bolt 2 6 facilitates the assembly and disassembly of the support plate 2.

[0038] Furthermore, the support plate 2 and clamping plate 41 are made of graphite material, while the base 1 and support frame 3 are made of metal material. The structure combines metal and graphite, with the metal part providing robust support and the graphite part effectively protecting the surface of the quartz tube rod due to its excellent wear resistance and thermal stability, reducing scratches and heat damage during the welding process.

[0039] 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 fixing fixture for auxiliary welding of quartz tubes and rods, comprising a base (1), characterized in that: The base (1) is fixed with a support plate (2) and a support frame (3) from bottom to top. The support frame (3) is fixed with a clamp assembly (4). The clamp assembly (4) includes two symmetrically arranged clamping plates (41) and a screw (42) threaded to the support frame (3) and passing through the two clamping plates (41). The screw (42) is threaded with a hand-tightening nut (43) that restricts the clamping plates (41).

2. The fixing fixture for auxiliary welding of quartz tubes and rods according to claim 1, characterized in that: The two clamping plates (41) are provided with limiting grooves (44) on opposite sides.

3. A fixing fixture for auxiliary welding of quartz tubes and rods according to claim 2, characterized in that: The limiting groove (44) is designed to be arc-shaped.

4. A fixing fixture for auxiliary welding of quartz tubes and rods according to claim 2, characterized in that: The clamping plate (41) is provided with a through hole (45) through which the screw (42) passes.

5. A fixing fixture for auxiliary welding of quartz tubes and rods according to claim 4, characterized in that: The through holes (45) are provided as four at the four corners of the clamping plate (41), and the corresponding screws (42) and hand-tightening nuts (43) are provided as four.

6. A fixing fixture for auxiliary welding of quartz tubes and rods according to claim 5, characterized in that: One of the clamping plates (41) near the support frame (3) is fixed to the support frame (3) by a fixing bolt (5), and the hand-tightening nut (43) is located on the side of the other clamping plate (41) away from the limiting groove (44).

7. A fixing fixture for auxiliary welding of quartz tubes and rods according to claim 1, characterized in that: The support plate (2) is provided with a through groove (7) and the support plate (2) is fixed to the base (1) by fixing bolt two (6), and the support frame (3) passes through the through groove (7).

8. A fixing fixture for auxiliary welding of quartz tubes and rods according to claim 7, characterized in that: The support plate (2) and the clamping plate (41) are made of graphite material.

9. A fixing fixture for auxiliary welding of quartz tubes and rods according to claim 1, characterized in that: The base (1) and the support frame (3) are made of metal.

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