A positioning and fixing device and a fixing method for the processing of quartz diffusion tubes

Abstract

The present invention relates to the technical field of positioning devices, and discloses a positioning and fixing device and a fixing method for the processing of quartz diffusion tubes. The positioning and fixing device includes a positioning and fixing frame, on which a support wheel and a positioning and clamping mechanism are installed. The support wheel is rotatably installed on the positioning and fixing frame and is used to support the quartz diffusion tube. By setting a clamping rotating plate, a rotating adjustment frame, a rolling positioning wheel, a fixed clamping block, a rotation control component and a fixing method adjustment component, the rolling positioning wheel and the fixed clamping block can be respectively brought into contact with and clamped to the quartz diffusion tube. When the quartz diffusion tube is rotated for processing, the rolling positioning wheel can clamp the surface of the quartz diffusion tube, enabling the quartz diffusion tube to rotate stably without bouncing or displacement. When the quartz diffusion tube is fixed for processing, the fixed clamping block can be brought into contact with and clamped to the quartz diffusion tube to prevent the quartz diffusion tube from rotating and moving during the fixed processing.

Description

Technical Field

[0001] The present invention relates to the technical field of positioning devices, and specifically to a positioning and fixing device and a fixing method for the processing of quartz diffusion tubes. Background Art

[0002] A quartz diffusion tube is a device used for gas diffusion, mixing, and transportation. Its structure generally consists of a quartz tube body, a mixing chamber, a diffusion chamber, a flow control valve, and a connecting part, etc. The diffusion chamber is arranged on the outlet side of the quartz tube body and is connected to the mixing chamber. The flow control valve is installed between the mixing chamber and the diffusion chamber, and the connecting parts are located at both ends of the quartz tube body, and its outer diameter is larger than that of the quartz tube body. The working principle is to use the quartz tube as a diffusion pipeline, and by controlling the temperature and gas flow, gas separation, purification, or mixing is achieved; in the semiconductor field, the outer diameter of the quartz diffusion tube used for semiconductor manufacturing is usually between 300 - 400 mm, and the wall thickness deviation ≤ 0.6 mm. In the production of solar cells, the diameter of the quartz diffusion tube corresponding to the diffusion furnace chamber adapted to silicon wafers with a side length of 166 mm is generally 350 mm, while that adapted to silicon wafers with a side length of 210 mm is usually 400 mm.

[0003] Chinese Patent CN219649656U discloses a quartz tube positioning device with an extension component. By setting a positioning mark component, the distance between two quartz tube clamping components can be accurately controlled, so as to accurately measure and adjust the positioning length.

[0004] During the processing of quartz diffusion tubes, different components need to be welded. For quartz diffusion tubes with a larger diameter, it is difficult to operate on the entire welding part during fixed welding. By rotating the quartz diffusion tube, the welding equipment can be relatively fixed. Only by adjusting the position of the welding head can the welding of the entire circumference be completed, reducing the number of movements and adjustments of the equipment and improving the welding efficiency. At the same time, rotary welding can make the welding part uniformly heated, and the quartz material at the weld can be fully fused, avoiding local overheating or overcooling, so as to ensure the uniform thickness and strength of the weld. For example, when welding a quartz tube and an inlet pipe, if not rotated, it may cause one side of the weld to be thick and the other side to be thin, affecting the overall sealing performance and strength; when using the above device to clamp and fix the quartz diffusion tube, the quartz diffusion tube can only be fixed for welding and cannot be rotated, so rotary welding processing cannot be carried out. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a positioning and fixing device and a fixing method for the processing of quartz diffusion tubes, which can stably rotate the quartz diffusion tube according to the processing needs while positioning and fixing the quartz diffusion tube, and solves the problems mentioned in the above background art.

[0006] To solve the above technical problems, the present invention provides the following technical solutions:

[0007] A positioning and fixing device includes a positioning and fixing frame, on which a support wheel and a positioning and clamping mechanism are installed. The support wheel is rotatably installed on the positioning and fixing frame and is used to support a quartz diffusion tube. The positioning and clamping mechanism includes a clamping rotating plate, a rotating adjustment frame, a rolling positioning wheel, a fixed clamping block, a rotation control component, and a fixing method adjustment component. The clamping rotating plate is rotatably installed on the positioning and fixing frame, the rotating adjustment frame is rotatably installed on the clamping rotating plate, the rolling positioning wheel and the fixed clamping block are respectively arranged at both ends of the rotating adjustment frame, the rolling positioning wheel is rotatably connected to the rotating adjustment frame, the fixed clamping block is fixedly connected to the rotating adjustment frame, the rotation control component is used to control the rotation of the clamping rotating plate, and the fixing method adjustment component is used to control the rotation of the rotating adjustment frame;

[0008] The rotating adjustment frame approaches a quartz diffusion tube placed on the support wheel by the rotation of the clamping rotating plate. When the rolling positioning wheel is in pressing contact with the surface of the quartz diffusion tube, the quartz diffusion tube can be positioned and rotated. When the fixed clamping block is in pressing contact with the surface of the quartz diffusion tube, the quartz diffusion tube cannot rotate;

[0009] A driving mechanism for driving the support wheel to rotate is arranged on the support wheel.

[0010] Preferably, the rotation control component includes a threaded rod, a threaded slider, and a pushing plate. Both ends of the threaded rod are rotatably connected to the positioning and fixing frame. The threaded slider is threadedly connected to the threaded rod. The pushing plate is rotatably installed on the threaded slider and is rotatably connected to the clamping rotating plate. A guide rod is fixedly installed on the positioning and fixing frame, and the guide rod is slidably connected to the threaded slider.

[0011] Preferably, the positioning and clamping mechanisms are symmetrically arranged on both sides of the positioning and fixing frame. Threads with opposite rotation directions are symmetrically arranged on both sides of the threaded rod. The threaded sliders are symmetrically installed on the threaded rod. An adjustment motor is also fixedly installed on the positioning and fixing frame. A driving end of the adjustment motor is fixedly installed with a driving adjustment wheel, and an end of the threaded rod is fixedly installed with a driven adjustment wheel. The driving adjustment wheel and the driven adjustment wheel are connected by a transmission belt.

[0012] Preferably, the fixing method adjustment component includes a connecting shaft, a sleeve, and a rotating shaft. Both ends of the connecting shaft are rotatably installed with clamping rotating plates, and the connecting shaft is fixedly connected to the rotating adjustment frame. The rotating adjustment frame is arranged between the two clamping rotating plates. The sleeve is fixedly installed on the positioning and fixing frame. The rotating shaft is rotatably installed inside the sleeve. The clamping rotating plates are rotatably installed at both ends of the sleeve. A transmission wheel is fixedly installed on the rotating shaft, and a driven wheel is fixedly installed on the connecting shaft. The driven wheel and the transmission wheel are connected by a transmission belt;

[0013] When the rotating shaft drives the connecting shaft to rotate, the clamping rotating plate will not rotate. When the clamping rotating plate rotates, the included angle between the rotating adjusting frame and the positioning and fixing frame does not change.

[0014] Preferably, a linkage shaft and a driven shaft are rotatably installed on the positioning and fixing frame. A driving gear is fixedly installed on the linkage shaft, and a driven gear is fixedly installed on the driven shaft. The driven gear is meshed and connected with the driving gear. Driving wheels are fixedly installed on both the linkage shaft and the driven shaft. A follower wheel is also fixedly installed on the rotating shaft. The driving wheel and the follower wheel on the same side are connected by a transmission belt.

[0015] Preferably, a control motor is also fixedly installed on the positioning and fixing frame. The driving end of the control motor and the linkage shaft are connected by a belt pulley.

[0016] Preferably, the supporting wheel includes a shaft seat, a shaft rod, and a roller. The shaft seat is fixedly installed on the positioning and fixing frame. The shaft rod is rotatably installed on the shaft seat. The roller is fixedly connected to the shaft rod.

[0017] Preferably, the driving mechanism includes a driving shaft and a driving motor. The driving shaft is rotatably installed on the positioning and fixing frame. The driving motor is fixedly installed on the positioning and fixing frame. The driving end of the driving motor and the driving shaft are connected by a belt pulley. The driving shaft and the shaft rod are connected by a belt pulley.

[0018] Preferably, the rotating adjusting frame includes a mounting head and an arc-shaped piece. The mounting head is fixedly connected to the connecting shaft. The arc-shaped pieces are fixedly installed on both sides of the mounting head and are arranged between the clamping rotating plates. The rolling positioning wheel is rotatably connected to the arc-shaped piece. The fixed clamping block is fixedly connected to the arc-shaped piece in a rotating manner.

[0019] The present invention also discloses a fixing method for the processing of quartz diffusion tubes. The specific steps are as follows:

[0020] Place the quartz diffusion tube on the supporting wheel so that the quartz diffusion tube is stably placed on the supporting wheel. Control the movement of the clamping rotating plate through the rotating control component so that the rotating adjusting frame approaches the surface of the quartz diffusion tube.

[0021] According to the processing method of the quartz diffusion tube, drive the rotating adjusting frame to rotate through the fixing method adjusting component so that the rolling positioning wheel or the fixed clamping block is closely attached to and clamps the surface of the quartz diffusion tube.

[0022] When the quartz diffusion tube needs to be rotated for processing, make the rolling positioning wheel closely attached to the surface of the quartz diffusion tube, and drive the supporting wheel to rotate through the driving mechanism so that the supporting wheel drives the quartz diffusion tube to rotate.

[0023] When the quartz diffusion tube needs to be fixed for processing, the fixed clamping block is made to closely adhere to the surface of the quartz diffusion tube, and the operation of the driving mechanism is stopped.

[0024] Compared with the prior art, the present invention provides a positioning and fixing device and a fixing method for processing a quartz diffusion tube, having the following beneficial effects:

[0025] 1. For this positioning and fixing device, by setting a clamping rotating plate, a rotating adjustment frame, a rolling positioning wheel, a fixed clamping block, a rotation control component and a fixing method adjustment component, the rolling positioning wheel and the fixed clamping block can respectively contact and clamp the quartz diffusion tube. When the quartz diffusion tube is rotated for processing, the rolling positioning wheel can clamp the surface of the quartz diffusion tube, enabling the quartz diffusion tube to rotate stably without bouncing and displacement. When the quartz diffusion tube is fixed for processing, the fixed clamping block can contact and clamp the quartz diffusion tube, avoiding the rotation and movement of the quartz diffusion tube during the fixed processing, ensuring that the quartz diffusion tube can be accurately positioned during different processing operations, and thus ensuring the processing accuracy of the quartz diffusion tube.

[0026] 2. For this positioning and fixing device, through the threaded rod, the threaded slider, the pushing plate, the connecting shaft, the sleeve and the rotating shaft, the inclination angles of the clamping rotating plate and the rotating adjustment frame relative to the positioning and fixing frame are not interfered by each other, and it can be used to position and fix diffusion tubes with different diameters, making the use of the positioning and fixing device more flexible. At the same time, by setting the driving gear and the driven gear, the rolling positioning wheels and the fixed clamping blocks on both sides of the clamped quartz diffusion tube always move relatively synchronously, so that the quartz diffusion tube is supported at four points without shaking.

[0027] 3. For this positioning and fixing device, by setting a driving mechanism, the supporting wheel can rotate as the supporting wheel rotates when the quartz diffusion tube is positioned by the rolling positioning wheel, facilitating the rotation processing of the quartz diffusion tube. Brief Description of the Drawings

[0028] Figure 1 is one of the three-dimensional structure schematic diagrams of the positioning and fixing device of the present invention;

[0029] Figure 2 is another three-dimensional structure schematic diagram of the positioning and fixing device of the present invention;

[0030] Figure 3 is the exploded three-dimensional structure schematic diagram of the positioning and fixing device of the present invention;

[0031] Figure 4 is of the present invention Figure 3 is the enlarged schematic diagram of the partial structure at A in the present invention;

[0032] Figure 5 is of the present inventionFigure 3 Schematic enlarged view of the local structure at B in

[0033] Figure 6 of the present invention Figure 3 Schematic enlarged view of the local structure at C in

[0034] Figure 7 Schematic cross-sectional view of the three-dimensional structure of the positioning and fixing device of the present invention

[0035] Figure 8 of the present invention Figure 7 Schematic enlarged view of the local structure at D in

[0036] In the figure:

[0037] 1. Positioning and fixing frame; 11. Guide rod; 12. Linkage shaft; 13. Driven shaft;

[0038] 2. Support wheel; 21. Axle seat; 22. Axle rod; 23. Roller;

[0039] 3. Positioning and clamping mechanism; 31. Clamping rotating plate; 32. Rotating adjustment frame; 321. Mounting head; 322. Arc-shaped piece; 33. Rolling positioning wheel; 34. Fixed clamping block; 35. Rotating control component; 351. Threaded rod; 352. Threaded slider; 353. Pushing plate; 354. Adjustment motor; 355. Active adjustment wheel; 356. Driven adjustment; 36. Fixed mode adjustment component; 361. Connecting shaft; 362. Sleeve; 363. Rotating shaft; 364. Transmission wheel; 365. Follow-up wheel; 366. Driven wheel; 367. Active gear; 368. Driven gear; 369. Driving wheel; 3610. Control motor;

[0040] 4. Driving mechanism; 41. Driving shaft; 42. Driving motor. Specific embodiments

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0042] Please refer to Figure 1 and Figure 2, the present invention provides a positioning and fixing device, which includes a positioning and fixing frame 1. A support wheel 2 and a positioning and clamping mechanism 3 are installed on the positioning and fixing frame 1. The support wheel 2 is rotatably installed on the positioning and fixing frame 1 and is used to support the quartz diffusion tube. The positioning and clamping mechanism 3 includes a clamping rotating plate 31, a rotating adjustment frame 32, a rolling positioning wheel 33, a fixed clamping block 34, a rotation control component 35 and a fixing method adjustment component 36. The clamping rotating plate 31 is rotatably installed on the positioning and fixing frame 1, the rotating adjustment frame 32 is rotatably installed on the clamping rotating plate 31. The rolling positioning wheel 33 and the fixed clamping block 34 are respectively arranged at both ends of the rotating adjustment frame 32. The rolling positioning wheel 33 is rotatably connected to the rotating adjustment frame 32, and the fixed clamping block 34 is fixedly connected to the rotating adjustment frame 32. The rotation control component 35 is used to control the rotation of the clamping rotating plate 31, and the fixing method adjustment component 36 is used to control the rotation of the rotating adjustment frame 31;

[0043] The rotating adjustment frame 32 approaches the quartz diffusion tube placed on the support wheel 2 through the rotation of the clamping rotating plate 34. When the rolling positioning wheel 33 is in pressing contact with the surface of the quartz diffusion tube, the quartz diffusion tube can be positioned and rotated. When the fixed clamping block 32 is in pressing contact with the surface of the quartz diffusion tube, the quartz diffusion tube cannot rotate;

[0044] A driving mechanism 4 for driving the support wheel 2 to rotate is arranged on the support wheel 2.

[0045] As can be seen from the above, in this positioning and fixing device, the quartz diffusion tube is positioned and clamped from below and above by the support wheel 2 and the positioning and clamping mechanism 3 to ensure the positioning and fixing effect. Since the positioning and clamping mechanism 3 includes a clamping rotating plate 31, a rotating adjustment frame 32, a rolling positioning wheel 33, a fixed clamping block 34, a rotation control component 35 and a fixing method adjustment component 36, the adjustment of the rotation control component 35 and the fixing method adjustment component 36 drives the clamping rotating plate 31 and the rotating adjustment frame 32 to move, enabling the rolling positioning wheel 33 or the fixed clamping block 34 to contact and clamp the quartz diffusion tube. When the quartz diffusion tube is rotated for processing, the rolling positioning wheel 33 can clamp the surface of the quartz diffusion tube, enabling the quartz diffusion tube to rotate stably without bouncing and displacement. When the quartz diffusion tube is fixed for processing, the fixed clamping block 34 can contact and clamp the quartz diffusion tube to prevent the quartz diffusion tube from rotating and moving during the fixed processing, ensuring that the quartz diffusion tube can be accurately positioned during different processes, thereby ensuring the processing accuracy of the quartz diffusion tube.

[0046] In addition, the positioning and fixing device proposed in this application has limitations on the diameter and length of the quartz diffusion tube. The positioned quartz diffusion tube can be placed between the support wheels 2 without falling, and when the positioning and clamping mechanism 3 clamps the quartz diffusion tube, both the rolling positioning wheel 33 and the fixed clamping block 34 can contact the upper part of the arc surface of the quartz diffusion tube, thus ensuring the clamping effect.

[0047] When using this positioning and fixing device, first place the quartz diffusion tube on the support wheel 2 so that the quartz diffusion tube is stably placed on the support wheel 2. Control the movement of the clamping rotating plate 31 by rotating the control assembly 35 to make the rotating adjustment frame 32 approach the surface of the quartz diffusion tube; according to the processing method of the quartz diffusion tube, drive the rotating adjustment frame 32 to rotate through the fixing method adjustment assembly 36 so that the rolling positioning wheel 33 or the fixed clamping block 34 is in close contact with the surface of the quartz diffusion tube for clamping; when the quartz diffusion tube needs to be rotationally processed, make the rolling positioning wheel 33 in close contact with the surface of the quartz diffusion tube, and drive the support wheel 2 to rotate through the driving mechanism 4 so that the support wheel 2 drives the quartz diffusion tube to rotate; when the quartz diffusion tube needs to be fixed for processing, make the fixed clamping block 34 in close contact with the surface of the quartz diffusion tube, and stop the operation of the driving mechanism 4. Embodiment 2

[0048] As Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 and Figure 8 As shown in

[0049] As can be seen from the above, since the threaded slider 352 is slidably connected to the guide rod 11 fixedly installed on the positioning and fixing frame 1, and the threaded slider 352 is threadedly connected to the threaded rod 351 rotatably installed on the positioning and fixing frame 1, when the threaded rod 351 rotates, the threaded slider 352 linearly moves along the length direction of the threaded rod 351. Since the push plate 353 is rotatably installed on the threaded slider 352 and the push plate 353 is rotatably connected to the clamping rotating plate 31 rotatably installed on the positioning and fixing frame 1, the threaded slider 352 can push the clamping rotating plate 31 to rotate through the push plate 353 when translating, so that the rotating adjustment frame 32 approaches or moves away from the quartz diffusion tube. In this embodiment, before placing the quartz diffusion tube inside the positioning and fixing frame 1, it is necessary to expand the distance between the opposite rotating adjustment frames 32 to be greater than the diameter of the quartz diffusion tube.

[0050] The positioning and clamping mechanism 3 is symmetrically arranged on both sides of the positioning and fixing frame 1. Threads with opposite rotation directions are symmetrically arranged on both sides of the threaded rod 351. The threaded slider 352 is symmetrically installed on the threaded rod 351. An adjustment motor 354 is also fixedly installed on the positioning and fixing frame 1. A driving end of the adjustment motor 354 is fixedly installed with a driving adjustment wheel 355. An end of the threaded rod 351 is fixedly installed with a driven adjustment wheel 356. The driving adjustment wheel 355 and the driven adjustment wheel 356 are connected by a transmission belt for transmission connection.

[0051] As can be seen from the above, the two threaded sliders 352 installed on the same threaded rod 351 move synchronously and in opposite directions, so that the two clamping rotating plates 31 arranged on one side of the positioning and fixing frame 1 can rotate synchronously and in opposite directions, thereby enabling the two rotating adjustment frames 32 on the same side to approach the quartz diffusion tube simultaneously; by providing the adjustment motor 354, the driving adjustment wheel 355 and the driven adjustment wheel 356, the adjustment motor 354 can drive the threaded rods 351 installed on both sides of the positioning and fixing frame 1 to rotate synchronously, so that all the rotating adjustment frames 32 approach or move away from the quartz diffusion tube synchronously.

[0052] The fixing method adjustment assembly 36 includes a connecting shaft 361, a sleeve 362 and a rotating shaft 363. Clamping rotating plates 31 are rotatably installed at both ends of the connecting shaft 361, and the connecting shaft 361 is fixedly connected to the rotating adjustment frame 32. The rotating adjustment frame 32 is arranged between the two clamping rotating plates 31. The sleeve 362 is fixedly installed on the positioning and fixing frame 1. The rotating shaft 363 is rotatably installed inside the sleeve 362. The clamping rotating plates 31 are rotatably installed at both ends of the sleeve 362. A transmission wheel 364 is fixedly installed on the rotating shaft 363. A driven wheel 366 is fixedly installed on the connecting shaft 361. The driven wheel 366 and the transmission wheel 364 are connected by a transmission belt for transmission connection;

[0053] When the rotating shaft 363 drives the connecting shaft 361 to rotate, the clamping rotating plate 31 will not rotate. When the clamping rotating plate 31 rotates, the included angle between the rotating adjustment frame 32 and the positioning and fixing frame 1 does not change.

[0054] As can be seen from the above, since the rotating shaft 363 is rotatably installed inside the sleeve 362 and the clamping rotating plates 31 are rotatably installed at both ends of the sleeve 362, the rotation of the rotating shaft 363 and the clamping rotating plates 31 does not interfere with each other. Since the connecting shaft 361 is rotatably connected to the clamping rotating plate 31 and fixedly connected to the rotating adjustment frame 32 at the same time, the rotation of the rotating adjustment frame 32 and the clamping rotating plate 31 can also not interfere with each other; since the transmission wheel 364 fixedly installed on the rotating shaft 363 and the driven wheel 366 fixedly installed on the connecting shaft 361 are connected by a transmission belt for transmission connection, the rotating shaft 363 can drive the connecting shaft 361 and the rotating adjustment frame 32 to rotate and is not hindered by the clamping rotating plate 31.

[0055] A linkage shaft 12 and a driven shaft 13 are rotatably installed on the positioning and fixing frame 1. A driving gear 367 is fixedly installed on the linkage shaft 12, and a driven gear 368 is fixedly installed on the driven shaft 13. The driven gear 368 is meshed and connected with the driving gear 367. Driving wheels 369 are fixedly installed on both the linkage shaft 12 and the driven shaft 13. A follower wheel 365 is also fixedly installed on the rotating shaft 363. The driving wheel 369 and the follower wheel 365 on the same side are connected by a transmission belt for transmission.

[0056] As can be seen from the above, since the driving gear 367 fixedly installed on the linkage shaft 12 is meshed and connected with the driven gear 368 fixedly installed on the driven shaft 13, therefore, the linkage shaft 12 and the driven shaft 13 rotatably installed on the positioning and fixing frame 1 rotate in opposite directions at the same speed. Therefore, the driving wheels 369 fixedly installed on the linkage shaft 12 and the driven shaft 13 can drive the follower wheels 365 on the same side to rotate synchronously, so that the two rotating shafts 363 on the same side of the positioning and fixing frame 1 rotate in opposite directions at the same speed, and the two rotating adjustment brackets 32 on the same side rotate in opposite directions at the same speed. Therefore, the rolling positioning wheels 33 installed on the two rotating adjustment brackets 32 on the same side approach or move away from the quartz diffusion tube simultaneously. In addition, since the linkage shaft 12 is simultaneously connected to the driving wheels 369 on both sides of the positioning and fixing frame 1, all the rotating adjustment brackets 32 rotate synchronously.

[0057] A control motor 3610 is also fixedly installed on the positioning and fixing frame 1. The driving end of the control motor 3610 is connected to the linkage shaft 12 by a transmission pulley for transmission.

[0058] As can be seen from the above, by setting the control motor 3610 to control the rotation of the linkage shaft 12, the rotation of all the rotating adjustment brackets 32 can be controlled. Embodiment III

[0059] As Figure 3 、 Figure 5 and Figure 6 shown, the difference between this embodiment and the above embodiments is that the support wheel 2 includes a shaft seat 21, a shaft rod 22 and a roller 23. The shaft seat 21 is fixedly installed on the positioning and fixing frame 1, the shaft rod 22 is rotatably installed on the shaft seat 21, and the roller 23 is fixedly connected to the shaft rod 22.

[0060] As can be seen from the above, when the quartz diffusion tube is mounted on the roller 23, the rotation of the roller 23 can drive the quartz diffusion tube to rotate.

[0061] The driving mechanism 4 includes a driving shaft 41 and a driving motor 42. The driving shaft 41 is rotatably installed on the positioning and fixing frame 1, the driving motor 42 is fixedly installed on the positioning and fixing frame 1, and the driving end of the driving motor 42 is connected to the driving shaft 41 by a transmission pulley for transmission. The driving shaft 41 is connected to the shaft rod 22 by a transmission pulley for transmission.

[0062] As can be seen from the above, when the drive shaft 41 rotates, it can drive the shaft rod 22 to rotate. Therefore, the drive motor 42 can drive the roller 23 to rotate.

[0063] The rotation adjustment frame 32 includes a mounting head 321 and an arc-shaped piece 322. The mounting head 321 is fixedly connected to the connecting shaft 361. The arc-shaped pieces 322 are fixedly installed on both sides of the mounting head 321, and the arc-shaped pieces 322 are both arranged between the clamping rotating plates 31. The rolling positioning wheel 33 is rotatably connected to the arc-shaped piece 322, and the fixed clamping block 34 is fixedly connected to the arc-shaped piece 322 in a rotational manner.

[0064] As can be seen from the above, since the arc-shaped piece 322 is arranged between the clamping rotating plates 31, the rotation angle range of the rotation adjustment frame 32 relative to the clamping rotating plates 31 can be enlarged. Embodiment 4

[0065] Please refer to Figure 1 - Figure 8 , the present invention also discloses a fixing method for the processing of quartz diffusion tubes, and the specific steps are as follows:

[0066] Place the quartz diffusion tube on the support wheel 2 so that the quartz diffusion tube is stably placed on the support wheel 2. Control the movement of the clamping rotating plate 31 through the rotation control assembly 35 so that the rotation adjustment frame 32 approaches the surface of the quartz diffusion tube;

[0067] According to the processing method of the quartz diffusion tube, drive the rotation adjustment frame 32 to rotate through the fixing method adjustment assembly 36 so that the rolling positioning wheel 33 or the fixed clamping block 34 is in close contact with the surface of the quartz diffusion tube for clamping;

[0068] When the quartz diffusion tube needs to be rotationally processed, make the rolling positioning wheel 33 in close contact with the surface of the quartz diffusion tube, and drive the support wheel 2 to rotate through the drive mechanism 4 so that the support wheel 2 drives the quartz diffusion tube to rotate;

[0069] When the quartz diffusion tube needs to be fixed for processing, make the fixed clamping block 34 in close contact with the surface of the quartz diffusion tube, and stop the operation of the drive mechanism 4.

[0070] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning and fixing device, comprising a positioning and fixing frame, characterized in that: A support wheel and a positioning clamping mechanism are installed on the positioning and fixing frame, and the support wheel is rotatably installed on the positioning and fixing frame for supporting the quartz diffusion tube; the positioning and clamping mechanism includes a clamping rotating plate, a rotating adjustment frame, a rolling positioning wheel, a fixed clamping block, a rotation control component and a fixed mode adjustment component, the clamping rotating plate is rotatably installed on the positioning and fixing frame, the rotating adjustment frame is rotatably installed on the clamping rotating plate, the rolling positioning wheel and the fixed clamping block are respectively arranged at two ends of the rotating adjustment frame, the rolling positioning wheel is rotatably connected to the rotating adjustment frame, the fixed clamping block is fixedly connected to the rotating adjustment frame, the rotation control component is used to control the rotation of the clamping rotating plate, and the fixed mode adjustment component is used to control the rotation of the rotating adjustment frame; The rotating adjustment frame approaches the quartz diffusion tube placed on the supporting wheel by rotating the clamping rotating plate. When the rolling positioning wheel is in compression contact with the surface of the quartz diffusion tube, the quartz diffusion tube can be positioned and rotated. When the fixed clamping block is in compression contact with the surface of the quartz diffusion tube, the quartz diffusion tube cannot rotate. The support wheel is provided with a driving mechanism for driving the support wheel to rotate; The fixed adjustment assembly comprises a connecting shaft, a sleeve and a rotating shaft, both ends of the connecting shaft are rotatably mounted with a clamping rotating plate, and the connecting shaft is fixedly connected to a rotating adjustment frame, the rotating adjustment frame is arranged between the two clamping rotating plates, the sleeve is fixedly mounted on the positioning fixing frame, the rotating shaft is rotatably mounted inside the sleeve, the clamping rotating plate is rotatably mounted at both ends of the sleeve, a transmission wheel is fixedly mounted on the rotating shaft, a driven wheel is fixedly mounted on the connecting shaft, and the driven wheel and the driving wheel are connected through a transmission belt transmission; When the rotating shaft drives the connecting shaft to rotate, the clamping rotating plate will not rotate. When the clamping rotating plate rotates, the angle between the rotating adjustment frame and the positioning fixing frame will not change.

2. A positioning and fixing device according to claim 1, characterized in that: The rotation control assembly includes a threaded rod, a threaded slider and a push plate, both ends of the threaded rod are rotatably connected to the positioning and fixing frame, the threaded slider is threadedly connected to the threaded rod, the push plate is rotatably installed on the threaded slider, and the push plate is rotatably connected to the clamping rotating plate, a guide rod is fixedly installed on the positioning and fixing frame, and the guide rod is slidably connected to the threaded slider.

3. A positioning and fixing device according to claim 2, characterized in that: The positioning clamping mechanism is symmetrically arranged on both sides of the positioning and fixing frame, threads with opposite rotation directions are symmetrically arranged on both sides of the threaded rod, the threaded slider is symmetrically installed on the threaded rod, and an adjusting motor is also fixedly installed on the positioning and fixing frame, an active adjusting wheel is fixedly installed on the driving end of the adjusting motor, and a driven adjusting wheel is fixedly installed on the end of the threaded rod, and the active adjusting wheel and the driven adjusting wheel are connected by a transmission belt.

4. A positioning and fixing device according to claim 1, characterized in that: A linkage shaft and a driven shaft are rotatably mounted on the positioning and fixing frame, a driving gear is fixedly mounted on the linkage shaft, a driven gear is fixedly mounted on the driven shaft, the driven gear is meshingly connected with the driving gear, a driving wheel is fixedly mounted on both the linkage shaft and the driven shaft, a follower wheel is also fixedly mounted on the rotating shaft, and the driving wheel is connected to the follower wheel on the same side through a transmission belt.

5. A positioning and fixing device according to claim 4, characterized in that: A control motor is also fixedly mounted on the positioning and fixing frame, and a driving end of the control motor is connected to the linkage shaft via a transmission pulley.

6. A positioning and fixing device according to claim 1, characterized in that: The supporting wheel comprises an axle seat, an axle rod and a roller. The axle seat is fixedly mounted on a positioning and fixing frame, the axle rod is rotatably mounted on the axle seat, and the roller is fixedly connected to the axle rod.

7. A positioning and fixing device according to claim 6, characterized in that: The driving mechanism includes a driving shaft and a driving motor. The driving shaft is rotatably mounted on a positioning and fixing frame. The driving motor is fixedly mounted on the positioning and fixing frame. The driving end of the driving motor is connected to the driving shaft via a transmission pulley. The driving shaft is connected to the shaft rod via a transmission pulley.

8. A positioning and fixing device according to claim 1, characterized in that: The rotating adjustment frame includes a mounting head and an arc-shaped piece, the mounting head is fixedly connected to the connecting shaft, the arc-shaped piece is fixedly mounted on both sides of the mounting head, and the arc-shaped pieces are arranged between the clamping rotating plates, the rolling positioning wheel is rotationally connected to the arc-shaped piece, and the fixed clamping block is rotationally and fixedly connected to the arc-shaped piece.

9. A fixing method for processing a quartz diffusion tube, using a positioning and fixing device as claimed in any one of claims 1 to 8, characterized in that: The specific steps are: Place the quartz diffusion tube on the support wheel so that the quartz diffusion tube is stably placed on the support wheel, and control the movement of the clamping rotating plate by rotating the control component so that the rotating adjustment frame is close to the surface of the quartz diffusion tube; According to the processing method of the quartz diffusion tube, the rotating adjustment frame is driven to rotate by the fixed adjustment component, so that the rolling positioning wheel or the fixed clamping block is tightly clamped with the surface of the quartz diffusion tube; When the quartz diffusion tube needs to be rotated, the rolling positioning wheel is closely attached to the surface of the quartz diffusion tube, and the supporting wheel is driven to rotate by the driving mechanism, so that the supporting wheel drives the quartz diffusion tube to rotate; When the quartz diffusion tube needs to be fixed, the fixed clamping block is tightly attached to the surface of the quartz diffusion tube, and the driving mechanism is stopped.

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