Butt joint device for quartz tube production

Abstract

The utility model discloses a butt joint device for quartz tube production belongs to quartz tube production technical field. The device includes the clamp of setting on the first support, is provided with the telescopic element of driving its translation, and the transmission element of driving its rotation, and telescopic element and transmission element are respectively by drive assembly and motor drive, wherein, telescopic element includes the screw tube of being established on the clamp and the screw rod of being connected in the screw tube, and transmission element includes the first belt group and second belt group of the pivot connection. The utility model's advantage lies in, only single motor can synchronous drive the quartz tube that both sides clamp holds and realizes accurate cooperation rotation. This design effectively solved the problem that quartz tube pipe twists or butt joint weld is uneven in prior art because of driving asynchronization, and the butt joint precision and production efficiency have been improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of quartz tube production technology, specifically to a docking device for quartz tube production. Background Technology

[0002] Quartz tubes, as high-purity silicate materials, are widely used in semiconductors, photovoltaics, and optics. The butt welding process during their production directly affects the tube's sealing performance and structural integrity. Traditional butt welding requires melting the ends of two quartz tubes at high temperatures and then axially pressing them together. This process demands precise concentric rotation and axial alignment of the tubes to avoid thermal stress concentration or geometric deformation. Therefore, the rotational synchronization and translational accuracy of the butt welding device are crucial factors in ensuring weld uniformity and tube straightness.

[0003] Existing docking devices often use independent drive units to control the rotation and translation of the clamps on both sides. Due to the inherent errors in the mechanical transmission chain driven by dual motors, slight differences in the rotational speed and phase of the quartz tubes on both sides can easily occur. This asynchrony can cause circumferential torsional deformation of the tubes under high-temperature softening conditions, resulting in uneven stress distribution at the fusion interface, weld misalignment, or fluctuations in tube wall thickness, significantly reducing the yield of finished products. In addition, the structural complexity of multiple power sources also limits the equipment's adjustment efficiency and maintenance costs. Utility Model Content

[0004] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a docking device for quartz tube production, thereby solving the problem of difficulty in synchronizing rotation caused by multiple power transmissions in the prior art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a docking device for quartz tube production, comprising: a clamp disposed on a first support, wherein the clamp is provided with a telescopic element for driving its translation and a transmission element for driving its rotation, wherein the telescopic element and the transmission element are respectively driven by a drive assembly and a motor; wherein the telescopic element includes a threaded cylinder disposed on the clamp and a lead screw threadedly connected to the threaded cylinder, and the transmission element includes a first belt group and a second belt group connected by a rotating shaft.

[0006] Optionally, a support member is fixed on the first bracket, and a rotating member is connected to the support member via a bearing. The rotating member is connected to the clamp via a telescopic member.

[0007] Optionally, a rotating block is fixed on the clamp, the rotating block is connected to the threaded cylinder through a bearing, and a fifth bracket is provided on the threaded cylinder, the fifth bracket being fixed on the support member.

[0008] Optionally, the drive assembly includes a first bevel gear and a second bevel gear that mesh with each other. The second bevel gear is connected to the support member via a bearing and is fixedly connected to the lead screw. The first bevel gear is connected to the second bracket via a bearing and is fixedly connected to the drive member.

[0009] Optionally, the first belt assembly includes a first pulley and a second pulley connected by a first belt. The first pulley is connected to the support member by a bearing, and the second pulley is fixed to the rotating shaft. The first pulley and the rotating member are fixedly connected.

[0010] Optionally, the second belt assembly includes a third pulley and a fourth pulley connected by a second belt, wherein the third pulley is fixed on the rotating shaft and the fourth pulley is fixed on the output shaft of the motor.

[0011] Optionally, a third bracket is provided on the rotating shaft via a bearing.

[0012] Optionally, it also includes a fourth bracket on which a flamethrower is mounted.

[0013] Optionally, the fifth bracket has an opening with a retaining strip inside. The threaded cylinder is slidably disposed in the opening, and the threaded cylinder has a retaining groove in which the retaining strip is engaged.

[0014] Optionally, the second bracket is fixed to the first bracket.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention achieves precise synchronous rotation of the clamps on both sides by using a single motor to drive a double belt assembly (a first belt assembly and a second belt assembly) linked by a rotating shaft. This design eliminates the inherent speed and phase deviations of multi-motor drives, effectively suppresses circumferential torsional deformation of the quartz tube in the high-temperature molten state, ensures uniform stress distribution at the weld interface, and significantly improves the straightness of the weld and the consistency of the tube wall thickness.

[0017] Meanwhile, this invention employs a telescopic element composed of a threaded cylinder and a lead screw, which, in conjunction with an independent drive assembly (bevel gear transmission system), drives the lead screw to rotate, converting the linear motion of the threaded pair into the axial displacement of the clamp. This structure enables feed control during the quartz tube docking process, ensuring the geometric accuracy of the parallel pressing of the end faces.

[0018] Furthermore, this invention utilizes a composite structure design of support, rotating, and telescopic components to allow the fixture to translate freely axially while transmitting rotational torque, thus achieving mechanical decoupling between rotational and feed motions. This design avoids mechanical interference during combined motions and improves system rigidity and dynamic stability.

[0019] In summary, this utility model, through its core design of single-motor synchronous drive and precision thread feed, solves the problems of circumferential torsional deformation of quartz tubes, weld offset and uneven thickness caused by inherent errors in dual-drive systems in the prior art, and significantly improves production qualification rate and equipment reliability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is an overall structural diagram of a docking device for quartz tube production according to the present invention.

[0022] Figure 2 This is a partial structural diagram of a docking device for quartz tube production according to the present invention.

[0023] Figure 3 This utility model relates to a docking device for quartz tube production. Figure 2 Enlarged view of point A in the middle.

[0024] Figure 4 This is a partial exploded view of a docking device for quartz tube production according to this utility model.

[0025] Figure 5 This is a partial cross-sectional view of a docking device for quartz tube production according to the present invention.

[0026] Figure 6 This utility model relates to a docking device for quartz tube production. Figure 5 Enlarged view of point B in the middle.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. First bracket; 11. Lead screw; 12. Fifth bracket; 13. Support component; 2. Clamp; 21. Threaded cylinder; 22. Rotating block; 23. Telescopic component; 24. Rotating component; 3. First belt; 31. First pulley; 32. Second pulley; 4. Second belt; 41. Third pulley; 42. Fourth pulley; 5. Shaft; 51. Motor; 52. Third bracket; 6. First bevel gear; 61. Second bevel gear; 62. Drive component; 63. Second bracket; 7. Fourth bracket; 71. Flamethrower. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] As mentioned earlier, existing docking devices often use independent drive units to control the rotation and translation of the clamps on both sides. Due to the inherent errors in the mechanical transmission chain driven by dual motors, slight differences in the rotational speed and phase of the quartz tubes on both sides can easily occur. This asynchrony can cause circumferential torsional deformation of the tubes under high-temperature softening conditions, resulting in uneven stress distribution at the fusion interface, weld misalignment, or fluctuations in tube wall thickness, significantly reducing the yield of finished products. In addition, the structural complexity of multiple power sources also limits the equipment's adjustment efficiency and maintenance costs.

[0031] To address this issue, this invention provides a docking device applied in the production of quartz tubes. It achieves precise synchronous rotation of the clamps on both sides by using a single motor to drive a double-belt assembly linked by a rotating shaft, thereby solving the aforementioned problem. This invention solves the problem in the following way.

[0032] Example 1:

[0033] Please refer to the instruction manual appendix. Figures 1 to 6 As shown in the figure, this embodiment provides a docking device for quartz tube production. The device includes two opposing first supports 1. Each of the two first supports 1 has a support member 13 fixed on it. Both support members 13 are installed through the first supports 1. On the side of the first supports that are close to each other (for ease of description, this side is defined as the inward side, and the corresponding side is the outward side), there is a clamp 2. The two clamps 2 are also arranged opposite each other, and each clamps a quartz tube for docking.

[0034] like Figures 4 to 6 As shown, in this first embodiment, a rotating member 24 is connected to the support member 13 via a bearing. Two telescopic members 23 are fixed on the rotating member 24. The telescopic member 23 includes an outer cylinder fixed on the rotating member 24 and an inner cylinder slidably connected inside the outer cylinder. One end of the inner cylinder is fixed on the clamp 2. When the rotating member 24 rotates, the clamp 2 rotates accordingly.

[0035] At the same time, such as Figure 4As shown, in this embodiment, a rotating block 22 is fixed at the center of rotation of the clamp 2. A threaded cylinder 21 (telescopic element) is connected to the rotating block 22 via a bearing. Two symmetrically arranged slots are provided on the outer side of the threaded cylinder 21. A locking strip is locked in the slot, and the locking strip is fixed to the fifth bracket 12. The fifth bracket 12 is fixed to the support member 13 (e.g., ...). Figure 6 As shown, the fifth bracket 12 has an opening, and the threaded cylinder 21 is inserted into and slidably disposed within this opening. A lead screw 11 is also threadedly connected to the threaded cylinder 21. Therefore, when the lead screw 11 rotates, the threaded cylinder 21 displaces relative to the lead screw 11 due to the threaded connection, thereby causing the clamp 2 to displace relative to the first bracket 1. This displacement, linked to the aforementioned rotation, achieves the effect of displacement during rotation.

[0036] The rotating parts 24 on both sides are connected to the first belt group, and the first belt group on both sides is connected to the second belt group through the rotating shaft 5. The second belt group is connected to the motor 51 (the first belt group, the second belt group, and the rotating shaft 5 form a transmission element). Therefore, in the specific implementation of this embodiment, the motor 51 drives the rotating parts 24 on both sides to rotate synchronously through the transmission element. The rotating parts 24 on both sides drive the two opposing clamps 2 to rotate through the telescopic part 23, so that the clamps 2 on both sides can rotate synchronously at the same speed. At the same time, the drive screw 11 rotates, causing the two clamps 2 to move closer to each other until they contact each other. At this time, the flame gun 71 set on the fourth bracket 7 sprays flame to melt the quartz tube, so that it is docked. Therefore, this embodiment avoids the speed and phase deviation inherent in the multi-motor drive by using a single motor 51, thereby ensuring the stability of the quartz tube during the docking process.

[0037] Example 2:

[0038] Based on the above embodiments, in order to further clarify and completely explain the technical solutions therein, this utility model also provides an embodiment two. For example... Figure 1 , Figure 2 and Figure 4 As shown in this second embodiment, the lead screw 11 in the previous embodiment is driven by a drive assembly. The drive assembly includes a first bevel gear 6 and a second bevel gear 61 that mesh with each other. The second bevel gear 61 is connected to the support member 13 via a bearing and is fixedly connected to the lead screw 11. The first bevel gear 6 is connected to the second bracket 63 via a bearing and is fixedly connected to the drive member 62. The second bracket 63 is fixed to the first bracket 1. The drive member 62 can be a handwheel, motor, drive motor, or other component capable of rotating the first bevel gear 6.

[0039] Therefore, in the specific implementation of this embodiment 2, the first bevel gear 6 is driven to rotate by the driving component 62, which in turn meshes with the second bevel gear 61 to rotate, thereby driving the lead screw 11 to rotate. Since the threaded cylinder 21 and the lead screw 11 are threadedly connected, and the threaded cylinder 21 is secured to the fifth bracket 12 by a retaining strip and a retaining groove, the rotation direction of the threaded cylinder 21 is the first direction, and it can only be displaced. Thus, under the influence of the threaded connection between the lead screw 11 and the threaded cylinder 11, it can perform translational movement, thereby driving the clamp 2 to move (since the threaded cylinder 21 is rotatably connected in the rotating block 22, the rotation of the clamp 2 and the rotating block 22 does not affect the threaded cylinder 21), so that the quartz tube clamped on it can be smoothly connected.

[0040] Example 3:

[0041] Based on the above embodiments, in order to further clarify and completely explain the technical solutions therein, this utility model also provides Embodiment Three. For example... Figure 1 As shown, the first belt assembly includes a first pulley 31 and a second pulley 32 connected by a first belt 3. The first pulley 31 is connected to the support member 13 by a bearing, and the first pulley 31 and the rotating member 24 are fixedly connected. When the first pulley 31 rotates, the rotating member 24 is subjected to force and rotates synchronously, thereby driving the clamp 2 to rotate. The second pulley 32 is fixed on the rotating shaft 5.

[0042] The second belt assembly includes a third pulley 41 and a fourth pulley 42 connected by a second belt 4. The third pulley 41 is fixed to a rotating shaft 5 (a third bracket 52 is mounted on the rotating shaft 5 via bearings. The third bracket 52 is fixed to a support surface, such as the ground). The fourth pulley 42 is fixed to the output shaft of the motor 51. When the output shaft of the motor 51 rotates, the fourth pulley 42 drives the third pulley 41 to rotate via the second belt 4, which in turn drives the rotating shaft 5 to rotate, thereby driving the second pulley 42 to rotate. The second pulley 42 drives the first pulley 31 to rotate via the third belt 3, which in turn drives the clamp 2 to rotate.

[0043] Therefore, in summary, compared with the prior art, this utility model has the following advantages, including but not limited to:

[0044] This invention achieves precise synchronous rotation of the clamps 2 on both sides by driving a double belt assembly (first belt assembly and second belt assembly) via a rotating shaft 5 using a single motor 51. This design eliminates the inherent speed and phase deviations of multi-motor drives, effectively suppresses circumferential torsional deformation of the quartz tube in the high-temperature molten state, ensures uniform stress distribution at the weld interface, and significantly improves the straightness of the weld and the consistency of the tube wall thickness.

[0045] Meanwhile, this utility model employs a telescopic element composed of a threaded cylinder 21 and a lead screw 11, which, in conjunction with an independent drive assembly (a bevel gear transmission system, including a first bevel gear 6 and a second bevel gear 61), drives the lead screw 11 to rotate, converting the linear motion of the threaded pair into the axial displacement of the clamp 2. This structure enables feed control during the quartz tube docking process, ensuring the geometric accuracy of the parallel pressing of the end faces.

[0046] Furthermore, this invention utilizes a composite structure design of support member 13, rotating member 24, and telescopic member 23 to allow the clamp 2 to translate freely axially while transmitting rotational torque, thus achieving mechanical decoupling between rotational and feed motions. This design avoids mechanical interference during composite motions and improves system rigidity and dynamic stability.

[0047] In summary, this utility model, through its core design of single-motor 51 synchronous drive and precision thread feed, solves the problems of circumferential torsional deformation of quartz tubes, weld offset and uneven thickness caused by inherent errors in dual-drive systems in the prior art, and significantly improves production qualification rate and equipment reliability.

[0048] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A docking device for quartz tube production, characterized in that, include: The clamp (2) is set on the first support (1). The clamp (2) is provided with a telescopic element that drives it to translate and a transmission element that drives it to rotate. The telescopic element and the transmission element are driven by a drive assembly and a motor (51), respectively. The telescopic element includes a threaded cylinder (21) mounted on the clamp (2) and a screw (11) threadedly connected to the threaded cylinder (21). The transmission element includes a first belt group and a second belt group connected by a rotating shaft (5).

2. The docking device for quartz tube production as described in claim 1, characterized in that, A support member (13) is fixed on the first bracket (1), and a rotating member (24) is connected to the support member (13) via a bearing. The rotating member (24) is connected to the clamp (2) via a telescopic member (23).

3. The docking device for quartz tube production as described in claim 2, characterized in that, A rotating block (22) is fixed on the clamp (2), and the rotating block (22) is connected to the threaded cylinder (21) through a bearing. A fifth bracket (12) is provided on the threaded cylinder (21), and the fifth bracket (12) is fixed on the support member (13).

4. The docking device for quartz tube production as described in claim 2, characterized in that, The drive assembly includes a first bevel gear (6) and a second bevel gear (61) that mesh with each other. The second bevel gear (61) is connected to the support member (13) by a bearing and is fixedly connected to the lead screw (11). The first bevel gear (6) is connected to the second bracket (63) by a bearing and is fixedly connected to the drive member (62).

5. A docking device for quartz tube production as described in claim 2, characterized in that, The first belt assembly includes a first pulley (31) and a second pulley (32) connected by a first belt (3). The first pulley (31) is connected to the support (13) by a bearing, and the second pulley (32) is fixed on the rotating shaft (5). The first pulley (31) and the rotating member (24) are fixedly connected.

6. The docking device for quartz tube production as described in claim 5, characterized in that, The second belt assembly includes a third pulley (41) and a fourth pulley (42) connected by a second belt (4). The third pulley (41) is fixed on the rotating shaft (5), and the fourth pulley (42) is fixed on the output shaft of the motor (51).

7. A docking device for quartz tube production as described in claim 1, characterized in that, A third bracket (52) is provided on the rotating shaft (5) via a bearing.

8. A docking device for quartz tube production as described in claim 1, characterized in that, It also includes a fourth support (7), on which a flamethrower (71) is mounted.

9. A docking device for quartz tube production as described in claim 3, characterized in that, The fifth bracket (12) has an opening with a retaining strip inside. The threaded cylinder (21) is slidably disposed in the opening and has a retaining groove. The retaining strip is engaged in the retaining groove.

10. A docking device for quartz tube production as described in claim 4, characterized in that, The second bracket (63) is fixed on the first bracket (1).

Images