A positioning fixture for automatic welding of quartz blocks

Abstract

The utility model relates to the technical field of solar photovoltaic equipment, and discloses a positioning fixture for automatic welding of quartz blocks, including a support table, the upper surface of the support table is fixedly connected to a workbench, one side of the support table is fixedly connected to an L-shaped plate, one side of the L-shaped plate is fixedly installed with a fixing plate by screws, one side of the fixing plate is fixedly connected to a U-shaped plate, one side of the U-shaped plate is fixedly connected to a motor, and the output end of the motor is fixedly connected to a threaded rod. The utility model has the following advantages and effects: it can be adjusted according to quartz boats of different sizes, which improves the overall application range of the device, not only improves the welding quality, but also reduces the defective product rate, saves a lot of costs, improves the working environment, reduces the labor intensity of operators, and avoids the welding work often requires operators to maintain a high degree of concentration for a long time, which is easy to cause physical fatigue and visual impairment.

Description

Technical Field

[0001] The utility model relates to the technical field of solar photovoltaic equipment, in particular to a positioning fixture used for automatic welding of quartz blocks. Background Art

[0002] Solar photovoltaic cells are a new type of battery that directly converts sunlight into electrical energy. Currently, silicon photovoltaic cells based on silicon are commonly used, including single-crystal silicon, polycrystalline silicon and amorphous silicon photovoltaic cells. In the preparation process of solar photovoltaic cells, silicon wafers need to go through processes such as texturing, diffusion, etching, coating and printing in sequence. Quartz boat is a commonly used wafer carrier. Multiple quartz boats are placed on a quartz boat holder and sent into the process furnace through the quartz boat holder. The more complete the contact between the process gas and the surface of the silicon wafer during the process, the more significant the process effect. The quartz boat can maintain good structural stability in a high-temperature environment without melting, deformation or severe oxidation. Therefore, it can carry samples to be processed (such as powders, particles, sheet materials, devices, etc.) and send them into a specific heating area inside a high-temperature furnace (such as a tube furnace, a box furnace, a CVD reaction chamber, etc.), such as around a silicon carbon tube, to achieve the sintering, synthesis, annealing, diffusion, deposition and other process of the sample at high temperature. There are two op blocks made of milky white quartz blocks on the side panels of the quartz boat. Their function is to ensure that the quartz boat can be positioned after being sent into the process furnace through the principle of shading. Most of the welding of the op blocks is done by manual positioning and installation, and the efficiency is relatively low.

[0003] The existing positioning fixtures are simple tooling built temporarily according to the product. They cannot guarantee accurate positioning during the welding process and are not stable enough to achieve high-quality and efficient welding work. In addition, the work efficiency is low and it is difficult for a single person to complete the work. When the production task is heavy, it is difficult to keep up with the production rhythm, and the only option is to increase the working hours artificially, resulting in high labor costs. Utility Model Content

[0004] The utility model aims to provide a positioning fixture for automatic welding of quartz blocks, which can solve the problems raised in the above-mentioned background technology.

[0005] The above-mentioned technical objective of the utility model is achieved through the following technical scheme: a positioning fixture for automatic welding of quartz blocks, comprising a support table, the upper surface of the support table is fixedly connected to a workbench, one side of the support table is fixedly connected to an L-shaped plate, one side of the L-shaped plate is fixedly installed with a fixing plate by screws, one side of the fixing plate is fixedly connected to a U-shaped plate, one side of the U-shaped plate is fixedly connected to a motor, the output end of the motor is fixedly connected to a threaded rod, the surface of the threaded rod is threadedly connected to a sleeve block, both sides of the inner wall of the U-shaped plate are fixedly connected to a round rod, the outside of the round rod is sleeved with a connecting block, one side of the connecting block is fixedly connected to a pressure plate, one end of the threaded rod is fixedly connected to a bearing, threaded holes are provided in the middle part of the upper surface of the workbench and one side of the upper surface, the inner part of the threaded hole is threadedly connected to a bolt, the outer part of the bolt is sleeved with a sleeve, and one side of the sleeve is fixedly connected to a clamping plate.

[0006] By adopting the above technical scheme, the quartz boat to be welded is placed on the workbench and the motor is started, thereby driving the pressure plate to be pressed down until the pressure plate contacts the OP block. When placing the quartz boat, the quartz boat should be clamped in the two clamping plates, and the pressure plate can be used to fix the OP block and the quartz boat respectively, and the positions of the two clamping plates on the workbench can be adjusted by setting multiple threaded holes, which can be adjusted according to quartz boats of different sizes, thereby improving the overall application range of the device and avoiding the errors that may be caused by traditional manual pressing and positioning. It not only improves the welding quality, but also reduces the defective rate, saves a lot of costs, improves the working environment, reduces the labor intensity of operators, and avoids the physical fatigue and visual impairment caused by the fact that welding work often requires operators to maintain a high degree of concentration for a long time. The device makes welding work easier and more comfortable, and improves the job satisfaction of employees.

[0007] The utility model is further configured as follows: a groove is provided on the lower surface of the connecting block, and the sleeve block is fixedly connected inside the groove.

[0008] By adopting the above technical solution, the connecting block and the sleeve block are fixed together, and the sleeve block can be limited by the matching round rod.

[0009] The utility model is further configured as follows: a round hole is opened on the other side of the U-shaped plate, and the bearing is fixedly connected inside the round hole.

[0010] By adopting the above technical solution, the bearing can increase the stability of the threaded rod, thereby preventing the threaded rod from being subjected to excessive force, which may affect the service life of the motor. The bearing can enhance the bearing capacity of the threaded rod.

[0011] The utility model is further configured as follows: a box body is fixedly connected to the lower surface of the workbench, and a movable door is hingedly connected to the front side of the box body.

[0012] By adopting the above technical solution, the setting of the box can facilitate the workers to place workpieces and tools.

[0013] The utility model is further configured as follows: a handle is fixedly connected to the front of the movable door, and an anti-slip protrusion is arranged on the outside of the handle.

[0014] By adopting the above technical solution, the setting of the handle can facilitate the staff to open the movable door.

[0015] The utility model is further configured as follows: a partition is fixedly connected inside the box, and a Fuma wheel is fixedly connected to the lower surface of the box.

[0016] By adopting the above technical solution, the setting of the Fuma wheel can facilitate the transportation of the device.

[0017] The utility model is further configured as follows: the number of the Foma wheels is four, and the four Foma wheels are fixedly connected to the lower surface of the box in the form of a rectangular array.

[0018] By adopting the above technical solution, the four Foma wheels make the device more stable when moving.

[0019] The utility model is further configured as follows: the number of the threaded holes is several, and the several threaded holes are all adapted to the bolts.

[0020] By adopting the above technical solution, the provision of multiple threaded holes makes it convenient to adjust the position of the clamping plate.

[0021] The utility model is further configured as follows: a heat insulation layer is provided on the lower surfaces of the clamping plate and the pressing plate, and the materials of the clamping plate and the pressing plate are both graphite.

[0022] By adopting the above technical solution, the setting of the thermal insulation layer and the graphite material can avoid deformation caused by temperature changes during the welding process. At the same time, it is convenient for the clamping plate and the pressure plate to quickly disperse the heat, reduce the accumulation of thermal stress, and reduce the setting of the thermal insulation layer in the part in contact with the quartz boat, so as to reduce heat transfer and reduce the generation of thermal stress.

[0023] The utility model is further configured as follows: a support plate is fixedly connected to one side of the box body, and a cup groove is provided on the upper surface of the support plate.

[0024] By adopting the above technical solution, the arrangement of the support plate and the cup groove can facilitate the staff to place the water cup, which is convenient and practical.

[0025] The beneficial effects of the utility model are:

[0026] By setting a workbench, an L-shaped plate, a fixing plate, a U-shaped plate, a motor, a threaded rod, a sleeve block, a round rod, a connecting block, a pressure plate, a threaded hole, a bolt and a clamping plate, the quartz boat to be welded is placed on the workbench and the motor is started, thereby driving the pressure plate to be pressed down until the pressure plate contacts the OP block. When placing the quartz boat, the quartz boat should be clamped in the two clamping plates, and the pressure plates cooperate to fix the OP block and the quartz boat respectively, so that the fixing effect is better, and the positions of the two clamping plates on the workbench can be adjusted by setting a plurality of threaded holes, and can be adjusted according to quartz boats of different sizes, thereby improving the overall application scope of the device and avoiding the errors that may be caused by traditional manual pressing and positioning, which not only improves the welding quality, but also reduces the defective rate, saves a lot of costs, improves the working environment, reduces the labor intensity of the operators, and avoids the physical fatigue and visual impairment that the operators often need to maintain a high degree of concentration for a long time due to welding work. The device makes welding work easier and more comfortable, and improves the job satisfaction of employees. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the structure of the utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the L-shaped plate of the utility model;

[0030] Figure 3 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0031] Figure 4 For this utility model Figure 1 Enlarged structural diagram at B in the middle.

[0032] In the figure, 1. support table; 2. workbench; 3. L-shaped plate; 4. fixing plate; 5. U-shaped plate; 6. motor; 7. threaded rod; 8. sleeve block; 9. round rod; 10. connecting block; 11. pressure plate; 12. bearing; 13. threaded hole; 14. bolt; 15. clamping plate; 16. box body; 17. movable door; 18. handle; 19. Fomar wheel; 20. support plate; 21. cup groove. DETAILED DESCRIPTION

[0033] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Reference Figure 1-4A positioning fixture for automatic welding of quartz blocks comprises a support table 1, the upper surface of the support table 1 is fixedly connected to a workbench 2, the lower surface of the workbench 2 is fixedly connected to a box 16, one side of the box 16 is fixedly connected to a support plate 20, the upper surface of the support plate 17 is provided with a cup groove 21, the interior of the box 16 is fixedly connected to a partition, the lower surface of the box 16 is fixedly connected to a Forma wheel 19, the number of the Forma wheels 19 is four, and the four Forma wheels 19 are fixedly connected to the lower surface of the box 16 in the form of a rectangular array, the front of the box 16 is hingedly connected to a movable door 17, and the front of the movable door 17 is fixedly connected to a handle 18. When in use, the operator first clamps the quartz boat in two clamping plates 15, and can select and adjust according to the quartz boats of different specifications and sizes. Adjust the position of the card plate 15, and then start the motor 6. The output end of the motor 6 drives the threaded rod 7 to rotate, and the rotation of the threaded rod 7 drives the sleeve block 8 to rotate. However, when the round rod 9 and the connecting block 10 are limited, the sleeve block 8 can only move longitudinally, so that the pressure plate 11 can achieve the purpose of pressing down and rising. The pressure plate 11 contacts the quartz boat, that is, the purpose of positioning the quartz boat is achieved. The outside of the handle 18 is provided with an anti-slip protrusion, one side of the support platform 1 is fixedly connected to an L-shaped plate 3, one side of the L-shaped plate 3 is fixedly installed with a fixing plate 4 by screws, one side of the fixing plate 4 is fixedly connected to a U-shaped plate 5, and the other side of the U-shaped plate 5 is provided with a circular hole, and the bearing 12 is fixedly connected to the inside of the circular hole, and one side of the U-shaped plate 5 is fixedly connected to the motor 6. The output end of 6 is fixedly connected with a threaded rod 7, and the surface of the threaded rod 7 is threadedly connected with a sleeve block 8. Round rods 9 are fixedly connected to both sides of the inner wall of the U-shaped plate 5, and the outer side of the round rod 9 is sleeved with a connecting block 10. The quartz boat to be welded is placed on the workbench 2 and the motor 6 is started, thereby driving the pressing plate 11 to press down until the pressing plate 11 contacts the OP block. When placing, the quartz boat should be clamped in the two clamping plates 15, and the pressing plate 11 is used to fix the OP block and the quartz boat respectively, and the position of the two clamping plates 15 on the workbench 2 can be adjusted by setting a plurality of threaded holes 13, and can be adjusted according to quartz boats of different sizes, thereby improving the overall application range of the device and avoiding the errors that may be caused by traditional manual pressing and positioning, which not only improves The welding quality is improved, the defective rate is reduced, a lot of costs are saved, the working environment is improved, the labor intensity of operators is reduced, and the physical fatigue and visual impairment are easily caused by the fact that welding work often requires operators to maintain a high degree of concentration for a long time. The device makes welding work easier and more comfortable, and improves the job satisfaction of employees. A groove is provided on the lower surface of the connecting block 10, and the sleeve block 8 is fixedly connected to the inside of the groove. A pressure plate 11 is fixedly connected to one side of the connecting block 10. The lower surfaces of the card plate 15 and the pressure plate 11 are both provided with a heat insulation layer. The card plate 15 and the pressure plate 11 are made of graphite. One end of the threaded rod 7 is fixedly connected to a bearing 12. The middle part of the upper surface of the workbench 2 and one side of the upper surface are provided with threaded holes 13.There are several threaded holes 13, and the several threaded holes 13 are all adapted to the bolts 14. The internal threads of the threaded holes 13 are connected with the bolts 14, and the external sleeve of the bolts 14 is sleeved, and a clamping plate 15 is fixedly connected to one side of the sleeve.

[0035] In the utility model, when in use, the operator first clamps the quartz boat in the two clamping plates 15, and can adjust the position of the clamping plates 15 according to the quartz boats of different specifications and sizes, and then starts the motor 6. The output end of the motor 6 drives the threaded rod 7 to rotate, and the rotation of the threaded rod 7 drives the sleeve block 8 to rotate. However, under the condition that the round rod 9 and the connecting block 10 are limited, the sleeve block 8 can only move longitudinally, so that the pressing plate 11 can achieve the purpose of pressing down and rising. The pressing plate 11 contacts the quartz boat, and the purpose of positioning the quartz boat is achieved.

Claims

1. A positioning fixture for automatic welding of quartz blocks, comprising a support table (1), characterized in that: The upper surface of the support platform (1) is fixedly connected to a workbench (2); one side of the support platform (1) is fixedly connected to an L-shaped plate (3); one side of the L-shaped plate (3) is fixedly mounted with a fixing plate (4) by means of screws; one side of the fixing plate (4) is fixedly connected to a U-shaped plate (5); one side of the U-shaped plate (5) is fixedly connected to a motor (6); an output end of the motor (6) is fixedly connected to a threaded rod (7); a sleeve block (8) is threadedly connected to the surface of the threaded rod (7); an inner wall of the U-shaped plate (5) is fixedly connected to a threaded rod (7); Round rods (9) are fixedly connected on both sides, a connecting block (10) is sleeved on the outside of the round rod (9), a pressure plate (11) is fixedly connected to one side of the connecting block (10), one end of the threaded rod (7) is fixedly connected to a bearing (12), a threaded hole (13) is provided in the middle of the upper surface of the workbench (2) and on one side of the upper surface, a bolt (14) is threadedly connected to the inner thread of the threaded hole (13), a sleeve is sleeved on the outside of the bolt (14), and a clamping plate (15) is fixedly connected to one side of the sleeve.

2. A positioning fixture for automatic welding of quartz blocks according to claim 1, characterized in that: The lower surface of the connection block (10) is provided with a groove, and the sleeve block (8) is fixedly connected inside the groove.

3. A positioning fixture for automatic welding of quartz blocks according to claim 2, characterized in that: A circular hole is provided on the other side of the U-shaped plate (5), and the bearing (12) is fixedly connected inside the circular hole.

4. A positioning fixture for automatic welding of quartz blocks according to claim 1, characterized in that: The lower surface of the workbench (2) is fixedly connected to a box body (16), and the front surface of the box body (16) is hingedly connected to a movable door (17).

5. A positioning fixture for automatic welding of quartz blocks according to claim 4, characterized in that: A handle (18) is fixedly connected to the front of the movable door (17), and an anti-slip protrusion is arranged on the outside of the handle (18).

6. A positioning fixture for automatic welding of quartz blocks according to claim 4, characterized in that: A partition is fixedly connected to the interior of the box body (16), and a Forma wheel (19) is fixedly connected to the lower surface of the box body (16).

7. A positioning fixture for automatic welding of quartz blocks according to claim 6, characterized in that: The number of the Forma wheels (19) is four, and the four Forma wheels (19) are fixedly connected to the lower surface of the box body (16) in the form of a rectangular array.

8. The positioning fixture for automatic welding of quartz blocks according to claim 1, characterized in that: The number of the threaded holes (13) is several, and the several threaded holes (13) are all adapted to the bolts (14).

9. A positioning fixture for automatic welding of quartz blocks according to claim 1, characterized in that: The lower surfaces of the clamping plate (15) and the pressing plate (11) are both provided with a heat insulation layer, and the clamping plate (15) and the pressing plate (11) are both made of graphite.

10. A positioning fixture for automatic welding of quartz blocks according to claim 4, characterized in that: A support plate (20) is fixedly connected to one side of the box body (16), and a cup groove (21) is provided on the upper surface of the support plate (20).

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