A welding apparatus for a quartz tube

Abstract

The application relates to a welding device for a quartz tube, which comprises a rotating table for rotating the quartz tube along a quartz tube axis, an external welding assembly arranged on the rotating table, and an internal welding assembly, wherein the internal welding assembly comprises an internal welding torch, a support frame, and two rotating rollers, the length direction of the rotating rollers is parallel to the axis direction of the quartz tube, the rotating rollers are rotationally connected to the support frame, the rotating rollers abut the inner side wall of the quartz tube, and the support frame is used for supporting the internal welding torch. The application improves the welding effect of the quartz tube and the gas inlet pipe.

Description

Technical Field

[0001] This application relates to the field of quartz tubes, and more particularly to a welding apparatus for quartz tubes. Background Technology

[0002] A diffuser tube is a material used in photovoltaic diffusion tubes, as well as in electric light sources, semiconductors, and new optical technologies. Diffuser tubes possess a range of excellent physical and chemical properties. They are made from quartz tubes, a special industrial glass made of silicon dioxide, which is an excellent basic material. During the manufacturing process of diffuser tubes, one end of the quartz tube is first sealed, and a coaxial air inlet pipe is welded to the sealed end. The diameter of the air inlet pipe is smaller than that of the quartz tube, and the air inlet pipe is connected to the quartz tube. The diameter of the quartz tube is about 20 centimeters and the length is about 2 meters. Currently, external single-sided welding is often used for the air inlet pipe. External welding can easily lead to insufficient weld strength between the air inlet pipe and the quartz tube. During the use of the diffuser tube, the weld joint is prone to cracking, resulting in poor welding effect between the quartz tube and the air inlet pipe. Summary of the Invention

[0003] To improve the welding effect between quartz tubes and air inlet pipes, this application provides a welding device for quartz tubes.

[0004] This application provides a welding device for quartz tubes, which adopts the following technical solution: A welding apparatus for quartz tubes includes a rotating table for rotating the quartz tube about its axis, an external welding assembly, and an internal welding assembly. The external welding assembly is disposed on the rotating table. The internal welding assembly includes an internal welding torch, a support frame, and two rotating rollers. The length direction of the rotating rollers is parallel to the axial direction of the quartz tube. The rotating rollers are rotatably connected to the support frame and abut against the inner wall of the quartz tube. The support frame supports the internal welding torch.

[0005] By adopting the above technical solution, the quartz tube used to make the diffuser tube is long and small in diameter, making it impossible for workers to directly reach into the quartz tube and perform welding operations with the intake pipe inside the quartz tube. Workers can first place the quartz tube to be welded on a rotating table, and then place the support frame inside the quartz tube. The internal welding torch is supported inside the quartz tube by the support frame. The internal welding torch is aimed at the part to be welded, and the external welding assembly is used for external welding of the quartz tube. During the welding process, the rotating table drives the quartz tube to rotate, and the internal and external welding torches are used to weld the inner and outer walls of the quartz tube simultaneously, improving the welding effect between the quartz tube and the intake pipe.

[0006] Optionally, the support frame further includes a clamping component for holding the internal welding torch and an auxiliary clamping component. The clamping component includes two sliding blocks, two V-shaped guide rollers, and a bidirectional screw. The diameter of the internal welding torch is parallel to the axis of the quartz tube. The two sliding blocks are slidably connected to the support frame in a direction close to or away from the internal welding torch. The two guide rollers correspond one-to-one with the two sliding blocks. The guide rollers are rotatably connected to the sliding blocks. The inclined roller surface of the guide rollers abuts against the internal welding torch. The length direction of the bidirectional screw is parallel to the sliding direction of the sliding blocks. The bidirectional screw is rotatably connected to the support frame. The two sliding blocks are threadedly connected to the threaded sections of the bidirectional screw with opposite directions of rotation. The auxiliary clamping component is used to ensure that the length of the internal welding torch remains perpendicular to the rotating roller.

[0007] By adopting the above technical solution, the operator can first connect the support frame (not inserted into the quartz tube) to the internal welding gun. The operator first places the internal welding gun between two guide rollers, and then rotates the bidirectional screw. The bidirectional screw drives the two sliding blocks to move closer to each other until the two guide rollers abut against the side wall of the internal welding gun. The auxiliary clamping component is used to keep the internal welding gun perpendicular to the rotating roller. Then, the operator places the internal welding gun and the support frame in the horizontal quartz tube. Then, the operator tilts one end of the internal welding gun outside the quartz tube. Under the action of its own weight, the support frame moves along the length of the internal welding gun and moves towards the end face of the quartz tube. The guide rollers reduce the friction between the quartz tube and the internal welding gun, which facilitates the movement of the support frame inside the quartz tube.

[0008] Optionally, the auxiliary clamping component includes two auxiliary sliding blocks and two V-shaped auxiliary guide rollers. The two auxiliary sliding blocks correspond one-to-one with the two sliding blocks. The auxiliary sliding blocks are slidably connected to the quartz tube along the axial direction of the quartz tube. The two auxiliary guide rollers correspond one-to-one with the two auxiliary sliding blocks. The auxiliary guide rollers are rotatably connected to the auxiliary sliding blocks.

[0009] By adopting the above technical solution, the auxiliary sliding block moves along with the corresponding sliding block, and the auxiliary guide roller on the auxiliary sliding block will abut against the outer wall of the inner welding gun. The auxiliary clamping component and the clamping component work together on the inner welding gun, so that when the two rotating rollers of the support frame abut against the inner wall of the quartz tube, the length direction of the inner welding gun is parallel to the axial direction of the quartz tube, thus improving the welding accuracy of the welding equipment.

[0010] Optionally, the auxiliary clamping component further includes a mating tube, a mating rod, and a locking bolt. The length direction of the mating tube is parallel to the length direction of the bidirectional screw. The mating tube is disposed on one of the auxiliary sliding blocks. The length direction of the mating rod is parallel to the length direction of the mating tube. The mating rod is slidably connected inside the mating tube. The mating rod is disposed on the other auxiliary sliding block. The tail of the locking bolt is threadedly connected to one of the auxiliary sliding blocks and abuts against the corresponding sliding block.

[0011] By adopting the above technical solution, the synchronous movement of the two auxiliary sliding blocks is achieved through the sliding connection between the fitting tube and the fitting rod. Furthermore, as the distance between the two clamping blocks changes, the distance between the two auxiliary sliding blocks also changes simultaneously. The different lengths of the quartz tubes result in different lengths of insertion required for the internal welding torch. By changing the distance between the auxiliary sliding blocks and the clamping blocks, the welding accuracy of the internal welding torch can be improved. After the position change of the auxiliary sliding blocks is completed, the position of the auxiliary sliding blocks can be fixed by locking the locking bolts.

[0012] Optionally, the support frame includes a support base and a lifting base. The clamping member and the auxiliary clamping member are both disposed on the lifting base. The rotating roller is disposed on the support base. The support base is provided with a lifting assembly for adjusting the distance between the lifting base and the support base. The lifting assembly includes a lifting screw, a lifting sleeve, and an adjusting member. The length direction of the lifting sleeve is parallel to the direction from the support base to the lifting base. One end of the lifting sleeve is disposed on the support base. The length direction of the lifting screw is parallel to the length direction of the lifting sleeve. The lifting screw is threaded to the inner side wall of the lifting sleeve. The lifting screw is rotatably connected to the lifting base. The adjusting member is used to control the rotation of the lifting screw outside the quartz tube.

[0013] By adopting the above technical solution, the support frame needs to adapt to different welding positions due to the different diameters of the quartz tubes. The operator can rotate the lifting screw through the adjusting component. The lifting screw rotates relative to the lifting sleeve. The lifting sleeve and the lifting screw are threadedly connected, and the distance between the lifting seat and the support seat changes, so that the internal welding gun can change the welding position. In addition, the screw adjustment accuracy is high, the screw has a self-locking effect, and the adjustment effect of the lifting component is reasonable.

[0014] Optionally, the adjusting component includes a sleeve, a worm gear, and a worm. The sleeve is fitted onto the inner welding torch, the worm is coaxially arranged with the sleeve, the worm is disposed on the outer side wall of the sleeve, the worm is rotatably connected to the lifting seat, the worm gear is used to mesh with the worm, and the worm is used to drive the lifting screw to rotate.

[0015] By adopting the above technical solution, when the operator adjusts the adjusting component, the lifting seat and the support seat are located inside the quartz tube. The operator can operate the adjusting component by observing the distance between the internal welding torch and the welding position. The sleeve is fitted onto the internal welding torch, which is held by the clamping component and the auxiliary clamping component. At this time, the worm and the worm wheel on the sleeve mesh. The rotation of the worm wheel can drive the lifting screw to rotate. The lifting screw rotates relative to the lifting sleeve, and the distance between the lifting seat and the support seat changes. The adjusting component allows the operator to adjust the distance between the lifting seat and the support seat from outside the quartz tube, thus improving the welding accuracy of the internal welding torch.

[0016] Optionally, the internal welding torch is also provided with a top hook, the end of which is away from the internal welding torch and is used to abut against the support base.

[0017] By adopting the above technical solution, after the internal welding gun completes the welding, the staff can use the top hook on the internal welding gun to overcome the friction between the two rotating rollers and the inside of the quartz tube, and remove the support frame from the quartz tube as a whole. The structure is simple and easy for the staff to operate.

[0018] Optionally, the support base is further provided with a disengagement assembly to facilitate the disengagement of the support base from the quartz tube. The disengagement assembly includes a mounting plate, two disengagement wheels, a return spring, and a control component. The mounting plate is slidably connected to the support base along the direction from the support base to the lifting seat. The two disengagement wheels are distributed along the axial direction of the quartz tube, and the axial direction of the disengagement wheels is perpendicular to the tangential direction of the quartz tube. The disengagement wheels are rotatably connected to the support base. The return spring is used to keep the disengagement wheels away from the inner wall of the quartz tube. The control component is used to keep the disengagement wheels abutting against the inner wall of the quartz tube.

[0019] By adopting the above technical solution, when the worker removes the support frame from the inside of the quartz tube, the worker can operate the control component. The control component will overcome the elastic force of the return spring and drive the mounting plate to move towards the inner wall of the quartz tube. The two release wheels abut against the inner wall of the quartz tube instead of the two rotating rollers. Since the axis of the release wheels is perpendicular to the axis of the quartz tube, the frictional force generated when the support frame is removed from the quartz tube is reduced, making it easier for the worker to remove the support frame from the quartz tube and reducing the wear of the rotating rollers.

[0020] Optionally, the control component includes a control plate, a control block, a linkage block, a control rod, and a control tube. The control plate is slidably connected to the lifting seat along the axial direction of the quartz tube. The length direction of the control rod is parallel to the sliding direction of the mounting plate. One end of the control rod is disposed on the control plate. The control tube is sleeved on the control rod. The control block is disposed at the end of the control tube opposite to the lifting seat. The control block is slidably connected to the support base along the axial direction of the quartz tube. The linkage block is disposed on the mounting plate and has a guide slope on it to facilitate the movement of the mounting plate toward the quartz tube.

[0021] By adopting the above technical solution, the worker holds the internal welding gun, and the top hook of the internal welding gun will abut against the control plate. The control plate moves, and the control plate will drive the control block to move through the control rod and control tube. The control block abuts against the guide slope of the linkage block. The linkage block overcomes the elastic force of the reset spring and moves the mounting plate towards the inner wall of the quartz tube, so that the release wheel abuts against the inner wall of the quartz tube until the support frame is separated from the quartz tube.

[0022] Optionally, the external welding assembly includes an external spray gun, an external sliding rod, and abutment bolts. The external sliding rod is slidably connected to the rotating platform along the axial direction of the quartz tube. The external spray gun is disposed on the external sliding rod, and the abutment bolts are used to fix the external sliding rod to the rotating platform.

[0023] By adopting the above technical solution, when the diameter of the quartz tube is different, the operator needs to adjust the spray position of the external spray gun. The operator can change the spray point of the external spray gun by adjusting the position of the external sliding rod. When the spray point of the external spray gun is adjusted to the required position, the operator can fix the external sliding rod to the rotating table by using the abutment bolt.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. The internal welding components and external welding components improve the welding quality of the quartz tube by welding the quartz tube and the air inlet pipe; 2. The lifting assembly is used to adjust the height of the internal welding torch, making it easier for the internal welding torch to be aligned with the welding position; 3. The detachment of the component facilitates the removal of the support frame from the quartz tube after the internal welding torch has completed welding. Attached Figure Description

[0025] Figure 1 It is a welding device used for quartz tubes.

[0026] Figure 2 yes Figure 1 A schematic diagram of the structure of the external welding assembly.

[0027] Figure 3 yes Figure 1 A schematic diagram of the internal welding components.

[0028] Figure 4 yes Figure 3 A schematic diagram of the auxiliary clamping component.

[0029] Figure 5 yes Figure 3 A schematic diagram of the detached component.

[0030] Reference numerals: 1. Rotary table; 11. Frame; 12. Drive roller; 13. Drive motor; 2. External welding assembly; 21. External spray gun; 22. External sliding rod; 23. Abutment bolt; 3. Internal welding assembly; 31. Internal welding gun; 32. Support frame; 321. Support base; 322. Lifting base; 323. Guide rod; 33. Rotating roller; 34. Clamping component; 341. Sliding block; 342. Guide roller; 343. Bidirectional screw; 344. Rotating disk; 35. Auxiliary clamping component; 351. Auxiliary sliding block; 352. Auxiliary guide roller; 353. Matching pipe; 354. 355. Locking bolt; 4. Lifting assembly; 41. Lifting screw; 42. Lifting sleeve; 43. Adjusting component; 431. Sleeve; 432. Worm gear; 433. Worm; 434. First bevel gear; 435. Second bevel gear; 5. Disengagement assembly; 51. Mounting plate; 52. Disengagement wheel; 53. Return spring; 54. Control component; 541. Control board; 542. Control block; 543. Linkage block; 544. Control rod; 545. Control tube; 546. Guide ramp; 6. Top hook; 61. Vertical rod; 62. Horizontal rod; 7. Quartz tube; 71. Intake pipe. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0032] This application discloses a welding apparatus for quartz tubes. (Refer to...) Figure 1 and Figure 2A welding device for a quartz tube 7 includes a rotating table 1, an external welding assembly 2, and an internal welding assembly 3. The rotating table 1 includes a frame 11, two drive rollers 12, and a drive motor 13. The drive rollers 12 are horizontally arranged and distributed along the width direction of the frame 11. The drive rollers 12 are rotatably connected to the frame 11. The drive motor 13 is used to drive one of the drive rollers 12 to rotate. The length direction of the quartz tube 7 is parallel to the length direction of the drive rollers 12. The quartz tube 7 is placed on the two drive rollers 12. One end of the quartz tube 7 is sealed. An air inlet pipe 71 is inserted into the sealed end of the quartz tube 7. The external welding assembly 2 is arranged on the rotating table 1 near the end of the air inlet pipe 71. The external welding assembly 2 is used to weld the quartz tube 7 and the air inlet pipe 71 from the outside. The internal welding assembly 3 is placed inside the quartz tube 7 and is used to weld the quartz tube 7 and the air inlet pipe 71 from the inside of the quartz tube 7.

[0033] Reference Figure 1 and Figure 2 The external welding assembly 2 includes an external spray gun 21, an external sliding rod 22, and an abutment bolt 23. The external sliding rod 22 is vertically arranged and slides along the vertical direction to be connected to the frame 11. The external spray gun 21 is fixedly arranged on the external sliding rod 22. One end of the external spray gun 21 is connected to the power supply, and the other end of the external spray gun 21 faces the connection between the quartz tube 7 and the air inlet pipe 71. The abutment bolt 23 is horizontally arranged, and the tail of the abutment bolt 23 is threadedly connected to the frame 11. The tail of the abutment bolt 23 abuts against the external sliding rod 22.

[0034] Reference Figure 1 and Figure 3 The internal welding assembly 3 includes an internal welding gun 31, a support frame 32, two rotating rollers 33, a clamping member 34, and an auxiliary clamping member 35. The support frame 32 includes a support base 321, a lifting base 322, and two guide rods 323. The support base 321 is horizontally arranged. The two rotating rollers 33 are distributed along the width direction of the support base 321, and the length direction of the rotating rollers 33 is parallel to the length direction of the support base 321. The rotating rollers 33 are rotatably connected to the lower end face of the support base 321 and abut against the inner side wall of the quartz tube 7. The two guide rods 323 are distributed along the width direction of the support base 321 and are vertically arranged. The lower end face of the guide rods 323 is fixedly arranged on the upper end face of the support base 321. The lifting base 322 is horizontally arranged and slidably connected to the two guide rods 323.

[0035] Reference Figure 3 and Figure 4The clamping member 34 and the auxiliary clamping member 35 are both disposed on the lifting base 322. The clamping member 34 includes two sliding blocks 341, two guide rollers 342, a bidirectional screw 343, and a rotating disk 344. The two sliding blocks 341 are distributed along the width direction of the lifting base 322 and are slidably connected to the lifting base 322 along the width direction of the lifting base 322. The two rotating rollers 33 correspond one-to-one with the two sliding blocks 341, and the rotation axis of the rotating rollers 33 is vertically arranged. The rotating roller 33 is V-shaped and is rotatably connected to the sliding block 341. The length direction of the bidirectional screw 343 is parallel to the width direction of the lifting seat 322. The bidirectional screw 343 is rotatably connected to the lower end face of the lifting seat 322. The two sliding blocks 341 are respectively threaded to the threaded sections of the bidirectional screw 343 with opposite directions of rotation. The rotating disk 344 is coaxially arranged with the bidirectional screw 343 and is fixedly arranged on one end of the bidirectional screw 343.

[0036] Reference Figure 3 and Figure 4 The auxiliary clamping component 35 includes two auxiliary sliding blocks 351, two auxiliary guide rollers 352, a mating tube 353, a mating rod 354, and a locking bolt 355. The two auxiliary sliding blocks 351 correspond one-to-one with the two sliding blocks 341. The auxiliary sliding blocks 351 are slidably connected to the sliding blocks 341 along the length of the lifting seat 322. The two auxiliary guide rollers 352 correspond one-to-one with the two auxiliary sliding blocks 351. The rotation axis of the auxiliary guide rollers 352 is vertically arranged. The auxiliary guide rollers 352 are V-shaped and rotatably connected to the auxiliary sliding blocks 351. The length of the mating tube 353 is parallel to the width of the lifting seat 322, and one end of the mating tube 353 is fixedly mounted on one of the auxiliary sliding blocks 351. The length direction of the mating rod 354 is parallel to the width direction of the lifting seat 322. The mating rod 354 is slidably connected inside the mating tube 353. One end of the mating rod 354 is fixedly set on another auxiliary sliding block 351. The locking bolt 355 corresponds to one of the auxiliary sliding blocks 351. The locking bolt 355 is set horizontally. The tail of the locking bolt 355 is threadedly connected to the corresponding auxiliary sliding block 351. The tail of the locking bolt 355 abuts against the sliding block 341. The length direction of the internal welding gun 31 is parallel to the length direction of the lifting seat 322. The internal welding gun 31 is located between two guide rollers 342. The guide rollers 342 abut against the outer wall of the internal welding gun 31. The auxiliary guide rollers 352 abut against the outer wall of the internal welding gun 31.

[0037] Reference Figure 3 and Figure 4The support base 321 is provided with a lifting assembly 4 for adjusting the distance between the lifting seat 322 and the support base 321. The lifting assembly 4 includes two lifting screws 41, two lifting sleeves 42, and an adjusting component 43. The adjusting component 43 includes a sleeve 431, a worm gear 432, a worm 433, two first bevel gears 434, and two second bevel gears 435. The sleeve 431 is sleeved on the inner welding torch 31. The worm 433 is coaxially arranged with the sleeve 431 and is fixedly arranged on the outer wall of the sleeve 431. The axis of the worm gear 432 is parallel to the width direction of the lifting seat 322. The worm gear 432 is rotatably connected to the lifting seat 322, and the worm 433 is used to mesh with the worm gear 432. The two lifting sleeves 42 are arranged along the width direction of the support base 321. The lifting sleeve 42 is vertically arranged, and its lower end face is fixedly set on the upper end face of the support base 321. Two lifting screws 41 correspond one-to-one with the two lifting sleeves 42. The lifting screws 41 and the lifting sleeves 42 are coaxially arranged and threadedly connected to the lifting sleeves 42. Two first bevel gears 434 correspond one-to-one with the two lifting screws 41. The first bevel gears 434 and the lifting screws 41 are coaxially arranged and fixedly set on the upper end face of the lifting screws 41. Two second bevel gears 435 correspond one-to-one with the two first bevel gears 434. The second bevel gears 435 and the worm gear 432 are coaxially arranged and fixedly set on one end of the worm gear 432. The second bevel gears 435 mesh with the first bevel gears 434.

[0038] Reference Figure 3 and Figure 5The support base 321 is also equipped with a release assembly 5 to facilitate the release of the support base 321 from the quartz tube 7. The release assembly 5 includes a mounting plate 51, two release wheels 52, two return springs 53, and a control component 54. The control component 54 includes a control plate 541, a control block 542, a linkage block 543, a control rod 544, and a control tube 545. The mounting plate 51 is horizontally positioned between the support base 321 and the lifting base 322. The mounting plate 51 is slidably connected to the support base 321 in the vertical direction. The two release wheels 52 are distributed along the length of the mounting plate 51, and the axis of the release wheels 52 is parallel to the width of the mounting plate 51. The release wheels 52 are rotatably connected to the lower end face of the mounting plate 51. The two return springs 53 are distributed along the length of the mounting plate 51, and the return springs 53 are vertically positioned. The upper end face of the return springs 53 is fixedly mounted on the support plate 51. On the lower end face of the mounting plate 51, the lower end face of the return spring 53 is fixedly mounted on the upper end face of the support base 321. The linkage block 543 is fixedly mounted on the upper end face of the mounting plate 51. A guide slope 546 is provided between the upper end face of the linkage block 543 and the side wall of the linkage block 543 facing the sealing end of the quartz tube 7. The control plate 541 is vertically mounted and slides along the length direction of the lifting base 322 to be connected to the lifting base 322. The control rod 544 is vertically mounted and its upper end face is fixedly mounted on the control plate 541. The control tube 545 is coaxially mounted with the control rod 544 and is sleeved on the control rod 544. The control block 542 is fixedly mounted on the lower end face of the control tube 545 and slides along the length direction of the support base 321 to be connected to the support base 321. The control block 542 abuts against the guide slope 546.

[0039] Reference Figure 3 and Figure 5 The internal welding torch 31 is provided with a top hook 6, which includes a vertical rod 61 and a horizontal rod 62. The length direction of the vertical rod 61 is perpendicular to the length direction of the internal welding torch 31, and one end of the vertical rod 61 is fixedly set on the outer side wall of the internal welding torch 31. The length direction of the horizontal rod 62 is parallel to the length direction of the internal welding torch 31, and one end of the horizontal rod 62 is fixedly set on the end of the vertical rod 61 away from the internal welding torch 31. The end of the horizontal rod 62 away from the vertical rod 61 is used to abut against the control plate 541.

[0040] The implementation principle of a welding device for quartz tubes according to an embodiment of this application is as follows: The operator first places the quartz tube 7 to be welded on two drive rollers 12, and then inserts the air inlet pipe 71 into the sealed end of the quartz tube 7 to complete the feeding of the quartz tube 7. Then the operator adjusts the external welding assembly 2. The operator first loosens the abutment bolt 23, and then slides the external sliding rod 22 so that the external spray gun 21 is aligned with the external welding point of the quartz tube 7 and the air inlet pipe 71. Then the abutment bolt 23 is tightened and the abutment bolt 23 abuts against the external sliding rod 22.

[0041] The operator first clamps the internal welding torch 31 outside the quartz tube 7 using the clamping member 34 and auxiliary clamping member 35 on the lifting seat 322, and makes the worm gear 433 on the sleeve 431 mesh with the worm wheel 432 on the lifting seat 322. Then, the operator places the support frame 32 inside the quartz tube 7. The operator can then tilt the internal welding torch 31 to change the position of the support frame 32 inside the quartz tube 7, and aim the nozzle of the internal welding torch 31 at the inside of the quartz tube 7 and the air inlet pipe 71 for welding. When it is necessary to adjust the position of the internal welding torch 31, the operator can rotate the sleeve 431. The sleeve 431 drives the worm gear 433 to rotate, the worm gear 433 drives the worm wheel 432 to rotate, the worm wheel 432 drives the second bevel gear 435 to rotate, the second bevel gear 435 drives the first bevel gear 434 to rotate, and the first bevel gear 434 drives the lifting screw 41 to rotate. The lifting screw 41 is threadedly connected to the lifting sleeve 42, thereby changing the height of the lifting seat 322 until the internal welding torch 31 is adjusted to the required position.

[0042] During the operation, the staff starts the drive motor 13, which drives the two drive rollers 12 to rotate. The drive rollers 12 drive the quartz roller to rotate. The rotating roller 33 can keep the spray point of the internal welding gun 31 unchanged. After the quartz tube 7 rotates once, the inner and outer sides of the quartz tube 7 and the air inlet pipe 71 are welded. The welding quality of the quartz tube 7 is high.

[0043] After the quartz tube 7 is welded, the worker can remove the support frame 32 from the quartz tube 7 by holding the internal welding gun 31. The top hook 6 on the internal welding gun 31 abuts against the control plate 541. The movement of the control plate 541 drives the control rod 544, control tube 545 and control block 542 to move together. During the movement, the control block 542 abuts against the guide slope 546 of the linkage block 543. The linkage block 543 pushes the mounting plate 51 against the spring force of the return spring 53 and abuts the two release wheels 52 against the inner wall of the quartz tube 7, reducing the friction between the rotating roller 33 and the inner wall of the quartz tube 7, making it easier for the worker to remove the support frame 32.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A welding device for quartz tubes, characterized in that: The assembly includes a rotating table (1) for rotating a quartz tube (7) along its axis, an external welding assembly (2), and an internal welding assembly (3). The external welding assembly (2) is mounted on the rotating table (1). The internal welding assembly (3) includes an internal welding torch (31), a support frame (32), and two rotating rollers (33). The length direction of the rotating rollers (33) is parallel to the axial direction of the quartz tube (7). The rotating rollers (33) are rotatably connected to the support frame (32) and abut against the inner wall of the quartz tube (7). The support frame (32) supports the internal welding torch (31). The support frame (32) includes a support base (321) and a lifting base (322). The internal welding torch (31) is also provided with a top hook (6). The end of the top hook (6) away from the internal welding torch (31) abuts against the support base. 321); The support base (321) is also provided with a disengagement component (5) to facilitate the disengagement of the support base (321) from the quartz tube (7). The disengagement component (5) includes a mounting plate (51), two disengagement wheels (52), a return spring (53), and a control component (54). The mounting plate (51) is slidably connected to the support base (321) along the direction from the support base (321) to the lifting base (322). The two disengagement wheels (52) are distributed along the axial direction of the quartz tube (7). The axial direction of the disengagement wheels (52) is perpendicular to the tangential direction of the quartz tube (7). The disengagement wheels (52) are rotatably connected to the support base (321). The return spring (53) is used to keep the disengagement wheels (52) away from the inner wall of the quartz tube (7). The control component (54) is used to keep the disengagement wheels (52) abutting against the inner wall of the quartz tube (7).

2. The welding equipment for quartz tubes according to claim 1, characterized in that: The support frame (32) also includes a clamping member (34) for clamping the internal welding torch (31) and an auxiliary clamping member (35). The clamping member (34) includes two sliding blocks (341), two V-shaped guide rollers (342), and a bidirectional screw (343). The length direction of the internal welding torch (31) is parallel to the axial direction of the quartz tube (7). The two sliding blocks (341) are slidably connected to the support frame (32) in a direction close to or away from the internal welding torch (31). The two guide rollers... (342) corresponds one-to-one with two sliding blocks (341). The guide roller (342) is rotatably connected to the sliding block (341). The inclined roller surface of the guide roller (342) abuts against the internal welding gun (31). The length direction of the bidirectional screw (343) is parallel to the sliding direction of the sliding block (341). The bidirectional screw (343) is rotatably connected to the support frame (32). The two sliding blocks (341) are respectively threaded to the threaded sections of the bidirectional screw (343) with opposite rotation directions.

3. The welding equipment for quartz tubes according to claim 2, characterized in that: The auxiliary clamping component (35) includes two auxiliary sliding blocks (351) and two V-shaped auxiliary guide rollers (352). The two auxiliary sliding blocks (351) correspond one-to-one with the two sliding blocks (341). The auxiliary sliding blocks (351) slide along the length of the lifting seat (322) and are connected to the sliding blocks (341). The two auxiliary guide rollers (352) correspond one-to-one with the two auxiliary sliding blocks (351). The auxiliary guide rollers (352) are rotatably connected to the auxiliary sliding blocks (351).

4. The welding equipment for quartz tubes according to claim 3, characterized in that: The auxiliary clamping component (35) further includes a mating tube (353), a mating rod (354), and a locking bolt (355). The length direction of the mating tube (353) is parallel to the length direction of the bidirectional screw (343). The mating tube (353) is disposed on one of the auxiliary sliding blocks (351). The length direction of the mating rod (354) is parallel to the length direction of the mating tube (353). The mating rod (354) is slidably connected inside the mating tube (353). The mating rod (354) is disposed on the other auxiliary sliding block (351). The tail of the locking bolt (355) is threadedly connected to one of the auxiliary sliding blocks (351) and abuts against the support frame (32).

5. The welding equipment for quartz tubes according to claim 4, characterized in that: The clamping member (34) and the auxiliary clamping member (35) are both disposed on the lifting seat (322), and the rotating roller (33) is disposed on the support seat (321). The support seat (321) is provided with a lifting assembly (4) for adjusting the distance between the lifting seat (322) and the support seat (321). The lifting assembly (4) includes a lifting screw (41), a lifting sleeve (42), and an adjusting member (43). The length direction of the lifting sleeve (42) is parallel to the support seat (321). The direction from the support (321) to the lifting seat (322), one end of the lifting sleeve (42) is set on the support (321), the length direction of the lifting screw (41) is parallel to the length direction of the lifting sleeve (42), the lifting screw (41) is threaded to the inner side wall of the lifting sleeve (42), the lifting screw (41) is rotatably connected to the lifting seat (322), and the adjusting member (43) is used to control the rotation of the lifting screw (41) outside the quartz tube (7).

6. The welding equipment for quartz tubes according to claim 5, characterized in that: The adjusting component (43) includes a sleeve (431), a worm gear (432), and a worm (433). The sleeve (431) is fitted onto the inner welding torch (31). The worm (433) is coaxially arranged with the sleeve (431) and is located on the outer wall of the sleeve (431). The worm (433) is rotatably connected to the lifting seat (322). The worm gear (432) is used to mesh with the worm (433), and the worm (433) is used to drive the lifting screw (41) to rotate.

7. The welding equipment for quartz tubes according to claim 1, characterized in that: The control component (54) includes a control plate (541), a control block (542), a linkage block (543), a control rod (544), and a control tube (545). The control plate (541) is slidably connected to the lifting seat (322) along the axial direction of the quartz tube (7). The length direction of the control rod (544) is parallel to the sliding direction of the mounting plate (51). One end of the control rod (544) is disposed on the control plate (541). The control tube (545) 5) The control block (542) is sleeved on the control rod (544) and is located at the end of the control tube (545) away from the lifting seat (322). The control block (542) is slidably connected to the support seat (321) along the axial direction of the quartz tube (7). The linkage block (543) is located on the mounting plate (51). The linkage block (543) has a guide slope (546) to facilitate the movement of the mounting plate (51) toward the quartz tube (7).

8. The welding equipment for quartz tubes according to claim 1, characterized in that: The external welding assembly (2) includes an external spray gun (21), an external sliding rod (22), and abutment bolts (23). The external sliding rod (22) is slidably connected to the frame (11) in the vertical direction. The external spray gun (21) is set on the external sliding rod (22). The abutment bolts (23) are used to fix the external sliding rod (22) to the rotating table (1).

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