Positioning and fixing device and fixing method for quartz diffusion tube machining

Abstract

The invention relates to the technical field of positioning devices, and discloses a positioning and fixing device and a fixing method for quartz diffusion tube machining, the positioning and fixing device comprises a positioning and fixing frame, a supporting wheel and a positioning and clamping mechanism are mounted on the positioning and fixing frame, and the supporting wheel is rotatably mounted on the positioning and fixing frame and used for supporting a quartz diffusion tube; according to the positioning and fixing device, through the arrangement of the clamping rotating plate, the rotating adjusting frame, the rolling positioning wheel, the fixed clamping block, the rotating control assembly and the fixing mode adjusting assembly, the rolling positioning wheel and the fixed clamping block can make contact with and clamp a quartz diffusion tube; according to the quartz diffusion tube fixing device, the surface of a quartz diffusion tube can be clamped by a rolling positioning wheel, so that the quartz diffusion tube can stably rotate without bouncing and displacement, and when the quartz diffusion tube is fixedly machined, a fixed clamping block can be in contact with and clamped with the quartz diffusion tube, so that the quartz diffusion tube is prevented from rotating and moving in the fixed machining process.

Description

Technical Field

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

[0002] A quartz diffusion tube is a device used for gas diffusion, mixing and transportation. Its structure is generally composed of a quartz tube body, a mixing chamber, a diffusion chamber, a flow control valve and a connecting part. 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. The connecting part is located at both ends of the quartz tube body, and its outer diameter is larger than the outer diameter of the quartz tube body. The working principle is to use the quartz tube as a diffusion pipe to achieve gas separation, purification or mixing by controlling temperature and gas flow. In the semiconductor field, the outer diameter of quartz diffusion tubes used in semiconductor manufacturing is usually between 300 and 400 mm, and the wall thickness is ≤0.6 mm. In the production of solar cells, the diameter of the quartz diffusion tube corresponding to the diffusion furnace chamber suitable for 166 mm side length silicon wafers is generally 350 mm, while that suitable for 210 mm side length silicon wafers is generally 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, thereby accurately measuring and adjusting the positioning length.

[0004] During the processing of quartz diffusion tubes, different parts need to be welded. For quartz diffusion tubes with larger diameters, fixed welding is difficult to operate on the entire welding part. By rotating the quartz diffusion tube, the welding equipment can be relatively fixed. Only the position of the welding head needs to be adjusted to complete the welding of the entire circumference, which reduces the number of equipment movements and adjustments and improves welding efficiency. At the same time, rotary welding can make the welding part evenly heated, and the quartz material at the weld can be fully fused to avoid local overheating or overcooling, thereby ensuring that the thickness and strength of the weld are uniform. For example, when welding the quartz tube and the intake pipe, if it is not rotated, one side of the weld may be thicker and the other side thinner, affecting the overall sealing and strength; when the above device is used to clamp and fix the quartz diffusion tube, the quartz diffusion tube can only be fixedly welded and cannot be rotated, so rotary welding processing cannot be performed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a positioning and fixing device and a fixing method for quartz diffusion tube processing, which can not only position and fix the quartz diffusion tube but also enable the quartz diffusion tube to rotate stably according to processing requirements, thereby solving the problems mentioned in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: A positioning and fixing device, comprising a positioning and fixing frame, on which a supporting wheel and a positioning clamping mechanism are installed, the supporting wheel is rotatably installed on the positioning and fixing frame, and is used to support a quartz diffusion tube; the positioning and clamping mechanism comprises 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.

[0007] Preferably, 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.

[0008] Preferably, the positioning clamping mechanism is symmetrically arranged on both sides of the positioning and fixing frame, the two sides of the threaded rod are symmetrically provided with threads with opposite rotation directions, 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.

[0009] Preferably, 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; 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.

[0010] Preferably, 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.

[0011] Preferably, 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.

[0012] Preferably, the supporting wheel comprises an axle seat, an axle rod and a roller, the axle seat is fixedly mounted on the positioning and fixing frame, the axle rod is rotatably mounted on the axle seat, and the roller is fixedly connected to the axle rod.

[0013] Preferably, 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, and the driving end of the driving motor is connected to the driving shaft via a transmission pulley, and the driving shaft is connected to the shaft rod via a transmission pulley.

[0014] Preferably, 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.

[0015] The present invention also discloses a fixing method for processing a quartz diffusion tube, the specific steps of which 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.

[0016] Compared with the prior art, the present invention provides a positioning and fixing device and a fixing method for quartz diffusion tube processing, which has the following beneficial effects: 1. The positioning and fixing device, by providing a clamping rotating plate, a rotating adjustment frame, a rolling positioning wheel, a fixed clamping block, a rotating control component and a fixing mode adjustment component, can make the rolling positioning wheel and the fixed clamping block contact and clamp the quartz diffusion tube respectively. When the quartz diffusion tube is subjected to rotation processing, the rolling positioning wheel can clamp the surface of the quartz diffusion tube, so that the quartz diffusion tube can rotate stably without bouncing and displacement. When the quartz diffusion tube is subjected to fixed processing, the fixed clamping block can contact and clamp the quartz diffusion tube, avoiding the quartz diffusion tube from rotating and moving during the fixed processing, ensuring that the quartz diffusion tube can be accurately positioned when performing different processing, thereby ensuring the processing accuracy of the quartz diffusion tube.

[0017] 2. The positioning and fixing device, through the threaded rod, threaded slider, push plate, connecting shaft, sleeve and rotating shaft, ensures that the inclination angle of the clamping rotating plate and the rotating adjustment frame relative to the positioning and fixing frame will not be interfered by the other party, and can be used to position and fix adaptive diffusion tubes of 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 quartz diffusion tube are always moved relatively synchronously, so that the quartz diffusion tube is supported by four points and will not shake.

[0018] 3. The positioning and fixing device is provided with a driving mechanism so that the supporting wheel can rotate along with the rotation of the supporting wheel when the quartz diffusion tube is positioned by the rolling positioning wheel, so as to facilitate the rotation processing of the quartz diffusion tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is one of the three-dimensional structural schematic diagrams of the positioning and fixing device of the present invention; Figure 2 This is the second schematic diagram of the three-dimensional structure of the positioning and fixing device of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure disassembly of the positioning and fixing device of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged local structure at point A in the middle; Figure 5 For the present invention Figure 3 A magnified schematic diagram of the local structure at B in the middle; Figure 6 For the present invention Figure 3 A magnified schematic diagram of the local structure at C in the middle; Figure 7 It is a three-dimensional structural cross-sectional view of the positioning and fixing device of the present invention; Figure 8 For the present invention Figure 7 A magnified schematic diagram of the local structure at point D in the middle.

[0020] In the figure: 1. Positioning and fixing frame; 11. Guide rod; 12. Linkage shaft; 13. Driven shaft; 2. Support wheel; 21. Axle seat; 22. Axle rod; 23. Roller; 3. Positioning and clamping mechanism; 31. Clamping rotating plate; 32. Rotating adjustment frame; 321. Mounting head; 322. Arc sheet; 33. Rolling positioning wheel; 34. Fixed clamping block; 35. Rotation control assembly; 351. Threaded rod; 352. Threaded slider; 353. Push plate; 354. Adjusting motor; 355. Active adjusting wheel; 356. Driven adjustment; 36. Fixed adjustment assembly; 361. Connecting shaft; 362. Sleeve; 363. Rotating shaft; 364. Transmission wheel; 365. Follower wheel; 366. Driven wheel; 367. Active gear; 368. Driven gear; 369. Driving wheel; 3610. Control motor; 4. Driving mechanism; 41. Driving shaft; 42. Driving motor. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0022] See also Figure 1 and Figure 2 The present invention provides a positioning and fixing device, including a positioning and fixing frame 1, on which a supporting wheel 2 and a positioning clamping mechanism 3 are installed, the supporting wheel 2 is rotatably installed on the positioning and fixing frame 1, and is used to support a 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 fixed mode 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 two ends of the rotating adjustment frame 32, the rolling positioning wheel 33 is rotatably connected to the rotating adjustment frame 32, 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 fixed mode adjustment component 36 is used to control the rotation of the rotating adjustment frame 31; The rotating adjustment frame 32 approaches the quartz diffusion tube placed on the supporting wheel 2 by rotating the clamping rotating plate 34. When the rolling positioning wheel 33 is pressed and contacted with the surface of the quartz diffusion tube, the quartz diffusion tube can be positioned and rotated. When the fixed clamping block 32 is pressed and contacted with the surface of the quartz diffusion tube, the quartz diffusion tube cannot rotate. The support wheel 2 is provided with a driving mechanism 4 for driving the support wheel 2 to rotate.

[0023] As can be seen from the above, the positioning and fixing device positions and clamps the quartz diffusion tube from the bottom and the top of the quartz diffusion tube through the support wheel 2 and the positioning 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 rotating control component 35 and a fixed mode adjustment component 36, the clamping rotating plate 31 and the rotating adjustment frame 32 are driven to move by adjusting the rotating control component 35 and the fixed mode adjustment component 36, so that the rolling positioning wheel 33 can be moved. Or the fixed clamping block 34 is in contact with and clamped on the quartz diffusion tube. When the quartz diffusion tube is subjected to rotation processing, the rolling positioning wheel 33 can clamp the surface of the quartz diffusion tube, so that the quartz diffusion tube can rotate stably without bouncing and displacement. When the quartz diffusion tube is subjected to fixed processing, the fixed clamping block 34 can be in contact with and clamped on the quartz diffusion tube to prevent the quartz diffusion tube from rotating and moving during the fixed processing, thereby ensuring that the quartz diffusion tube can be accurately positioned during different processing, thereby ensuring the processing accuracy of the quartz diffusion tube.

[0024] In addition, the positioning and fixing device proposed in this application has restrictions on the diameter and length of the quartz diffusion tube. The positioned quartz diffusion tube can be erected between the support wheels 2 without falling, and when the positioning clamping mechanism 3 clamps the quartz diffusion tube, the rolling positioning wheel 33 and the fixed clamping block 34 can both contact the upper part of the arc surface of the quartz diffusion tube, thereby ensuring the clamping effect.

[0025] When using the 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, and control the movement of the clamping turn plate 31 by the rotation control component 35 so that the rotating adjustment frame 32 is close to the surface of the quartz diffusion tube; according to the processing method of the quartz diffusion tube, the rotating adjustment frame 32 is driven to rotate by the fixed method adjustment component 36 so that the rolling positioning wheel 33 or the fixed clamping block 34 is tightly clamped with the surface of the quartz diffusion tube; when the quartz diffusion tube needs to be rotated, the rolling positioning wheel 33 is tightly pressed against the surface of the quartz diffusion tube, and the support wheel 2 is driven to rotate by 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 fixedly processed, the fixed clamping block 34 is tightly pressed against the surface of the quartz diffusion tube, and the operation of the driving mechanism 4 is stopped. Embodiment 2

[0026] like Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, the difference between this embodiment and the above embodiment is that the rotation control component 35 includes a threaded rod 351, a threaded slider 352 and a push plate 353, both ends of the threaded rod 351 are rotatably connected to the positioning and fixing frame 1, the threaded slider 352 is threadedly connected to the threaded rod 351, 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, and a guide rod 11 is fixedly installed on the positioning and fixing frame 1, and the guide rod 11 is slidably connected to the threaded slider 352.

[0027] As can be seen from the above, since the threaded slider 352 is slidably connected to the guide rod 11 fixedly mounted on the positioning and fixing frame 1, and the threaded slider 352 is threadedly connected to the threaded rod 351 rotatably mounted on the positioning and fixing frame 1, when the threaded rod 351 rotates, the threaded slider 352 moves linearly along the length direction of the threaded rod 351. Since the push plate 353 is rotatably mounted on the threaded slider 352, and the push plate 353 is rotatably connected to the clamping rotating plate 31 rotatably mounted 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 it translates, so that the rotating adjustment frame 32 is close to or away from the quartz diffusion tube. In this embodiment, before the quartz diffusion tube is placed inside the positioning and fixing frame 1, the distance between the relative rotating adjustment frames 32 needs to be expanded to be larger than the diameter of the quartz diffusion tube.

[0028] The positioning clamping mechanism 3 is symmetrically arranged on both sides of the positioning and fixing frame 1, and 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 adjusting motor 354 is also fixedly installed on the positioning and fixing frame 1. An active adjusting wheel 355 is fixedly installed on the driving end of the adjusting motor 354, and a driven adjusting wheel 356 is fixedly installed on the end of the threaded rod 351. The active adjusting wheel 355 and the driven adjusting wheel 356 are connected by a transmission belt.

[0029] As can be seen from the above, the two threaded sliders 352 installed on the same threaded rod 351 move synchronously 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 in opposite directions, so that the two rotating adjustment frames 32 on the same side can approach the quartz diffusion tube at the same time; by setting the adjustment motor 354, the active 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 can approach or move away from the quartz diffusion tube synchronously.

[0030] The fixed adjustment assembly 36 includes a connecting shaft 361, a sleeve 362 and a rotating shaft 363. The two ends of the connecting shaft 361 are rotatably mounted with a clamping rotating plate 31, 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 mounted on the positioning and fixing frame 1. The rotating shaft 363 is rotatably mounted inside the sleeve 362. The clamping rotating plate 31 is rotatably mounted at both ends of the sleeve 362. A transmission wheel 364 is fixedly mounted on the rotating shaft 363. A driven wheel 366 is fixedly mounted on the connecting shaft 361. The driven wheel 366 and the driving wheel 364 are connected through a transmission belt. When the rotating shaft 363 drives the connecting shaft 361 to rotate, the clamping rotating plate 31 does not rotate. When the clamping rotating plate 31 rotates, the angle between the rotating adjustment frame 32 and the positioning and fixing frame 1 does not change.

[0031] As can be seen from the above, since the rotating shaft 363 is rotatably installed inside the sleeve 362, and the clamping rotating plate 31 is rotatably installed at the two ends of the sleeve 362, the rotation of the rotating shaft 363 and the clamping rotating plate 31 does not interfere with each other, and since the connecting shaft 361 is rotationally connected to the clamping rotating plate 31 and is fixedly connected to the rotating adjustment frame 32, 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 transmission, the rotating shaft 363 can drive the connecting shaft 361 and the rotating adjustment frame 32 to rotate, and are not hindered by the clamping rotating plate 31.

[0032] A linkage shaft 12 and a driven shaft 13 are rotatably mounted on the positioning fixed frame 1, a driving gear 367 is fixedly mounted on the linkage shaft 12, a driven gear 368 is fixedly mounted on the driven shaft 13, the driven gear 368 is meshed and connected with the driving gear 367, a driving wheel 369 is fixedly mounted on both the linkage shaft 12 and the driven shaft 13, a follower wheel 365 is also fixedly mounted on the rotating shaft 363, and the driving wheel 369 is connected to the follower wheel 365 on the same side through a transmission belt.

[0033] As can be seen from the above, since the driving gear 367 fixedly mounted on the linkage shaft 12 and the driven gear 368 fixedly mounted on the driven shaft 13 are meshed and connected, the linkage shaft 12 and the driven shaft 13 rotatably mounted on the positioning and fixing frame 1 rotate in opposite directions at the same speed. Therefore, the driving wheel 369 fixedly mounted on the linkage shaft 12 and the driven shaft 13 can drive the driven wheel 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 frames 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 frames 32 on the same side approach or move away from the quartz diffusion tube at the same time. 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 frames 32 rotate synchronously.

[0034] A control motor 3610 is also fixedly mounted on the positioning and fixing frame 1 , and a driving end of the control motor 3610 is connected to the linkage shaft 12 via a transmission pulley.

[0035] 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 the entire rotating adjustment frame 32 can be controlled. Embodiment 3

[0036] like Figure 3 , Figure 5 and Figure 6 As shown, the difference between this embodiment and the above embodiment is that the support wheel 2 includes an axle seat 21, a shaft rod 22 and a roller 23, the axle seat 21 is fixedly mounted on the positioning and fixing frame 1, the shaft rod 22 is rotatably mounted on the axle seat 21, and the roller 23 is fixedly connected to the shaft rod 22.

[0037] It can be seen from the above that 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.

[0038] The driving mechanism 4 includes a driving shaft 41 and a driving motor 42. The driving shaft 41 is rotatably mounted on the positioning and fixing frame 1, and the driving motor 42 is fixedly mounted on the positioning and fixing frame 1. The driving end of the driving motor 42 is connected to the driving shaft 41 through a transmission pulley, and the driving shaft 41 is connected to the shaft rod 22 through a transmission pulley.

[0039] As can be seen from the above, when the driving shaft 41 rotates, it can drive the shaft 22 to rotate, so the driving motor 42 can drive the roller 23 to rotate.

[0040] The rotating adjustment frame 32 includes a mounting head 321 and an arc piece 322. The mounting head 321 is fixedly connected to the connecting shaft 361. The arc piece 322 is fixedly installed on both sides of the mounting head 321, and the arc piece 322 is arranged between the clamping rotating plate 31. The rolling positioning wheel 33 is rotatably connected to the arc piece 322, and the fixed clamping block 34 is rotatably and fixedly connected to the arc piece 322.

[0041] As can be seen from the above, since the arc-shaped piece 322 is disposed between the clamping rotating plates 31 , the rotation angle range of the rotating adjustment frame 32 relative to the clamping rotating plates 31 can be expanded. Embodiment 4

[0042] See also Figure 1 - Figure 8 The present invention also discloses a fixing method for processing a quartz diffusion tube, the specific steps of which are: Place the quartz diffusion tube on the support wheel 2 so that the quartz diffusion tube is stably placed on the support wheel 2, and control the movement of the clamping rotating plate 31 by the rotation control component 35 so that the rotating adjustment frame 32 is close to the surface of the quartz diffusion tube; According to the processing method of the quartz diffusion tube, the rotating adjustment frame 32 is driven to rotate by the fixed adjustment component 36, so that the rolling positioning wheel 33 or the fixed clamping block 34 is tightly clamped with the surface of the quartz diffusion tube; When the quartz diffusion tube needs to be rotated, the rolling positioning wheel 33 is closely attached to the surface of the quartz diffusion tube, and the driving mechanism 4 drives the supporting wheel 2 to rotate, so that the supporting wheel 2 drives the quartz diffusion tube to rotate; When the quartz diffusion tube needs to be fixed, the fixing clamping block 34 is brought into close contact with the surface of the quartz diffusion tube, and the driving mechanism 4 is stopped.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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.

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: 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.

5. A positioning and fixing device according to claim 4, 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.

6. A positioning and fixing device according to claim 5, 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.

7. 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.

8. A positioning and fixing device according to claim 7, 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.

9. A positioning and fixing device according to claim 4, 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.

10. A fixing method for processing a quartz diffusion tube, using a positioning and fixing device as claimed in any one of claims 1 to 9, 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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