A rotary welding device for ceramic wear-resistant guided feeding of quartz rods

Abstract

This invention relates to a rotary welding device for quartz rods with ceramic wear-resistant guiding feeding. It includes a robot, a welding head base plate and cover, a welding torch, and a welding torch nozzle. The robot is connected to the rear end of the welding head base plate via a robot flange. A linear module and a servo motor drive a slider connecting seat to move. A servo rotary motor and a servo electric gripper mounted on the slider connecting seat precisely position the quartz welding rod through a graphite guide head fitted with a ceramic guide sleeve. Continuous and precise welding of the weld seam is achieved through the coordinated movement of the robot and the linear module. This invention extends the durability of the guide head and improves production efficiency through the design of the ceramic guide sleeve. The use of a linear module and servo motor to drive feeding, combined with photoelectric sensor positioning, achieves precise positioning and stable feeding of the quartz rod. The symmetrical arrangement of two welding torches, combined with the servo rotary motor driving the rod rotation and the robot's coordinated movement, enables continuous and precise welding of the weld seam.

Description

Technical Field

[0001] This invention relates to the field of quartz welding equipment technology, specifically to a rotary welding device for ceramic wear-resistant guide feeding of quartz rods. Background Technology

[0002] With the rapid development of modern industry, quartz products are increasingly used in many high-end fields such as semiconductors, optical communications, and photovoltaics. Quartz welding, as a key link in the processing of quartz products, directly affects the performance and production cost of the final product in terms of its quality and efficiency.

[0003] Traditional quartz welding feeding methods mainly rely on manual operation, requiring workers to manually place the quartz welding rod to the welding position for fusion. This method has many drawbacks: On the one hand, manual operation is labor-intensive and extremely inefficient, making it difficult to meet the needs of large-scale industrial production; On the other hand, the accuracy of manual feeding depends entirely on the operator's skill level, which can easily lead to deviations in the position of the weldment, resulting in unstable welding quality and a high scrap rate.

[0004] Furthermore, in some applications where the precision requirements for quartz soldering are extremely high, such as the soldering of quartz reaction chambers in semiconductor manufacturing, even tiny feeding errors can cause serious quality problems, making traditional manual feeding methods completely inadequate.

[0005] To overcome the above problems, automated feeding mechanisms have emerged. However, the existing ceramic wear-resistant guide feeding quartz rod rotary welding device is only made of graphite material. During continuous use of automated feeding, it wears out quickly and needs to be replaced frequently. Therefore, there is an urgent need for a brand-new ceramic wear-resistant guide feeding quartz rod rotary welding device. Summary of the Invention

[0006] This invention proposes a quartz rod rotary welding device for ceramic wear-resistant guiding feeding, which realizes automatic and stable feeding of quartz welding parts, improves welding production efficiency and quality, and enhances the wear resistance of the guide head.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows: A rotary welding device for guiding and feeding ceramic wear-resistant quartz rods includes a robot, a welding head base plate, welding torches, welding torch nozzles, a linear module, and a servo motor. Two welding torches are symmetrically mounted on the welding head base plate, with their corresponding nozzles positioned opposite each other on the outer front side of the base plate. The linear module is mounted in the center of the welding head base plate. The housing of the servo motor is fixed to the linear module. A slider connecting seat is fixedly mounted on the slider of the linear module. The servo motor drives the slider of the linear module via a coupling, thereby causing the slider connecting seat to reciprocate back and forth. The welding head base plate is equipped with several photoelectric sensors for detecting the slider position, and a servo motor is fixedly mounted on the slider connecting seat. The motor includes a servo electric gripper at the front end of the output shaft of the servo rotary motor. The servo electric gripper holds a quartz rod and is driven to rotate by the servo rotary motor, causing the quartz rod to rotate. The front end of the welding head base plate is provided with a quartz rod guide head. The quartz rod guide head is fixedly connected to the front end of the welding head base plate through side plates and a fixing plate. The two side plates are vertically fixed to the front end of the welding head base plate, and the fixing plate is installed horizontally between the two side plates. The quartz rod guide head includes a guide head body that penetrates through a through hole in the fixing plate and a ceramic bushing embedded in the through hole in the fixing plate. The ceramic bushing is sleeved on the head of the guide head body. The guide head body has a central through hole for introducing the quartz rod.

[0008] Furthermore, the rear part of the welding head base plate is fixedly connected to the robot via a robot flange.

[0009] Furthermore, the position of the head of the guide head body is aligned with the position of the nozzles of the two welding gun nozzles.

[0010] Furthermore, the welding head base plate is equipped with three photoelectric sensors, which correspond to the front, middle and rear positions of the linear module, respectively. The slider connecting seat is fixed with a sensor positioning block that cooperates with the photoelectric sensors.

[0011] Furthermore, the front end of the welding head base plate is fixedly connected to the quartz rod guide head through a side plate, a fixing plate, and a reinforcing rib. The side plate is vertically fixed to the front end of the welding head base plate, the fixing plate is installed across the two side plates, one end of the reinforcing rib is fixed to the welding head base plate, and the other end of the reinforcing rib is attached to the side plate and pressed against the back of the fixing plate to form a triangular support.

[0012] Furthermore, a terminal block mounting plate is provided at the rear end of the welding head base plate, and a terminal block is mounted on the terminal block mounting plate. The cables of the photoelectric sensor, servo rotary motor and servo electric gripper are led to the terminal block through a drag chain, which is installed parallel to one side of the linear module and the slider connecting seat.

[0013] Furthermore, a protective cover is fixedly provided on the outer side of the welding head base plate, and the linear module, servo motor and servo rotary motor are located inside the protective cover.

[0014] Furthermore, the robot, photoelectric sensor, servo rotary motor, servo electric gripper, and servo motor are all controlled by a programmable logic controller.

[0015] Compared with the prior art, the present invention has the following advantages: The composite structure of graphite guide head with embedded ceramic bushing extends the service life of the guide head, reduces downtime for replacement, and improves production efficiency. By using a linear module and servo motor to drive the feeding process, and in conjunction with photoelectric sensors for positioning, precise positioning and stable feeding of quartz rods are achieved, thereby improving welding quality.

[0016] By employing a symmetrical arrangement of dual welding torches, coupled with a servo rotary motor driving the bar stock rotation and the robot's coordinated movement, continuous and precise welding of the weld seam is achieved, thereby improving welding efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a front view of the internal structure of the present invention; Figure 3 This is a front view of the internal structure of the present invention; Figure 4 This is a rear view of the internal structure of the present invention; Figure 5 This is a left view of the internal structure of the present invention; Figure 6 This is a front view of the external structure of the present invention; Figure 7 This is a schematic diagram of the guide head of the present invention; Figure Labels 1. Robot; 2. Welding head base plate; 3. Protective cover; 4. Welding torch; 5. Welding torch nozzle. 6. Robot flange, 7. Linear module, 8. Coupling, 9. Servo motor. 10. Photoelectric sensor, 11. Slider connector, 12. Servo rotary motor. 13 Servo-driven electric grippers, 14 Side plates, 15 Fixing plates, 16 Reinforcing ribs. 17. Quartz rod guide head; 171. Guide head body; 172. Ceramic bushing. 18 Terminal block mounting plate, 19 Terminal block, 20 Cable chain, 21 Sensor positioning block. 22 Quartz rods. Detailed Implementation

[0018] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] This embodiment proposes a rotary welding device for ceramic wear-resistant guiding feed of quartz rods, such as... Figures 1-7 As shown, it includes a robot 1, a welding head base plate 2, a welding torch 4, a linear module 7, and a servo motor 9. One side panel at the rear of the welding head base plate 2 is fixedly connected to the robot 1 via a robot flange 6, and the robot 1 drives the entire welding head to move.

[0020] In the welding head, the linear module 7 is fixedly installed in the middle of the welding head base plate 2 by screws. The housing of the servo motor 9 is fixedly installed on the linear module 7 by screws. The slider of the linear module 7 is fixedly provided with a slider connecting seat 11. The servo motor 9 drives the slider of the linear module 7 through the coupling 8, which in turn drives the slider connecting seat 11 to move back and forth.

[0021] A servo rotary motor 12 is fixedly mounted on the slider connecting seat 11. A servo electric gripper 13 is provided at the front end of the output shaft of the servo rotary motor 12. The servo electric gripper 13 is used to hold the quartz rod 22 and can drive the quartz rod 22 to rotate under the drive of the servo rotary motor 12.

[0022] A quartz rod guide head 17 is fixedly provided at the front end of the welding head base plate 2. The front end of the welding head base plate 2 is fixedly connected to the quartz rod guide head 17 through a side plate 14, a fixing plate 15, and a reinforcing rib 16. The side plate 14 is vertically fixed at the front end of the welding head base plate 2. The fixing plate 15 is installed across the two side plates 14. The fixing plate 15 has a through hole for accommodating the head of the quartz rod guide head 17 to pass through. One end of the reinforcing rib 16 is fixed to the welding head base plate 2, and the other end of the reinforcing rib 16 is attached to the side plate 14 and pressed against the back of the fixing plate 15 to form a triangular support.

[0023] The quartz rod guide head 17 includes a guide head body 171 that vertically penetrates the through hole of the fixing plate 15 and a ceramic bushing 172 embedded in the through hole of the fixing plate 15. The diameter of the through hole of the fixing plate 15 matches the outer circle of the ceramic bushing 172, and the inner circle of the ceramic bushing 172 matches the outer circle of the head of the guide head body 171. The middle through hole of the guide head body 171 is coaxially set with the clamping center of the servo electric gripper 13, ensuring that the quartz rod 22 passes smoothly through the guide head body 171 to the electric gripper 13 and maintains straightness.

[0024] Two welding torches 4 are symmetrically mounted on the welding head base plate 2. The corresponding welding torch nozzles 5 of the two welding torches 4 are set opposite each other on the outer side of the front part of the welding head base plate 2. The head of the guide head body 171 is aligned with the nozzle of the two welding torch nozzles 5, so that the quartz rod 22 is in the welding area of ​​the two welding torches 4 after it is sent out, and double-sided synchronous welding can be performed.

[0025] The welding head base plate 2 is equipped with three photoelectric sensors 10, which correspond to the front, middle and rear positions of the linear module 7 respectively. The slider connecting seat 11 is fixed with a sensor positioning block 21 that cooperates with the photoelectric sensors 10. The photoelectric sensors 10 and the sensor positioning block 21 cooperate to accurately detect the position of the slider connecting seat 11, thereby controlling the feeding stroke.

[0026] The rear end of the welding head base plate 2 is provided with a terminal block mounting plate 18, and a terminal block 19 is mounted on the terminal block mounting plate 18. The cables of the photoelectric sensor 10, the servo rotary motor 12 and the servo electric gripper 13 are led to the terminal block 19 through the drag chain 20. The drag chain 20 is installed parallel to one side of the linear module 7 and the slider connecting seat 11. The drag chain 20 protects the cables that move with the slider and prevents the cables from being pulled and worn.

[0027] In this embodiment, the robot 1, photoelectric sensor 10, servo rotary motor 12, servo electric gripper 13, and servo motor 9 are all controlled by a programmable logic controller (PLC) to achieve automated operation.

[0028] In this embodiment, a protective cover 3 is fixedly provided on the outer side of the welding head base plate 2. The linear module 7, servo motor 9 and servo rotary motor 12 are located inside the protective cover 3, and only the welding torch 4 and welding torch nozzle 5 are outside the protective cover 3, which protects the electronic components during operation.

[0029] The workflow of this embodiment is as follows: In the initial state, the slider connecting seat 11 is located at the rear end of the linear module 7, and the servo electric gripper 13 is in the open state, waiting for material to be loaded; The quartz rod 22 is passed through the central through hole of the guide head body 171 and sent to the position of the servo electric gripper 13. The PLC controls the servo electric gripper 13 to clamp the quartz rod 22. Then the servo motor 9 starts to rotate forward, and drives the slider of the linear module 7 to move forward through the coupling 8, which in turn drives the slider connecting seat 11, servo rotary motor 12, servo electric gripper 13 and quartz rod 22 to feed forward together. The front, middle and rear photoelectric sensors 10 cooperate with the sensor positioning block 21 to control the feeding position and speed. After the front end of the quartz rod 22 is delivered to the welding position between the two welding torch nozzles 5, the two welding torches 4 are ignited to heat and weld the end of the quartz rod 22. During the welding process, the servo rotary motor 12 drives the servo electric gripper 13 and the quartz rod 22 to rotate at a constant speed. At the same time, the robot 1 drives the entire welding head to move along the preset trajectory to achieve continuous and precise welding of the weld. After welding is completed, the welding torch 4 is turned off, the servo electric gripper 13 releases the quartz rod 22, the servo motor 9 reverses, and drives the slider connecting seat 11 back to the initial position, ready for the next feeding.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotary welding device for ceramic wear-resistant guiding and feeding quartz rods, characterized in that, The assembly includes a robot (1), a welding head base plate (2), welding torches (4), a linear module (7), and a servo motor (9). Two welding torches (4) are symmetrically mounted on the welding head base plate (2). The corresponding welding torch nozzles (5) of the two welding torches (4) are arranged opposite each other on the outer side of the front part of the welding head base plate (2). The linear module (7) is mounted in the middle of the welding head base plate (2). The housing of the servo motor (9) is fixed on the linear module (7). A slider connecting seat (11) is fixed on the slider of the linear module (7). The servo motor (9) drives the slider of the linear module (7) through a coupling (8), which in turn drives the slider connecting seat (11) to move back and forth. The welding head base plate (2) is provided with several photoelectric sensors (10) for detecting the position of the slider. A servo rotary motor (12) is fixed on the slider connecting seat (11). A servo motor is provided at the front end of the output shaft of the servo rotary motor (12). The servo-electric gripper (13) holds the quartz rod (22). The servo-electric gripper (13) is driven to rotate by a servo rotary motor (12), which in turn drives the quartz rod (22) to rotate. The front end of the welding head base plate (2) is provided with a quartz rod guide head (17). The quartz rod guide head (17) is fixedly connected to the front end of the welding head base plate (2) through side plates (14) and a fixing plate (15). The two side plates (14) are vertically fixed to the welding head base plate (2). At the front end of the welding head base plate (2), the fixing plate (15) is installed across the two side plates (14). The quartz rod guide head (17) includes a guide head body (171) that passes through the through hole of the fixing plate (15) and a ceramic bushing (172) embedded in the through hole of the fixing plate (15). The ceramic bushing (172) is sleeved on the head of the guide head body (171). The guide head body (171) is provided with a central through hole for introducing the quartz rod (22).

2. The quartz rod rotary welding device for ceramic wear-resistant guiding feeding according to claim 1, characterized in that, The rear part of the welding head base plate (2) is fixedly connected to the robot (1) via the robot flange (6).

3. The quartz rod rotary welding device for ceramic wear-resistant guiding feeding according to claim 1, characterized in that, The head of the guide head body (171) is aligned with the nozzles of the two welding gun nozzles (5).

4. The quartz rod rotary welding device for ceramic wear-resistant guiding feeding according to claim 1, characterized in that, The welding head base plate (2) is provided with three photoelectric sensors (10), which correspond to the front, middle and rear positions of the linear module (7) respectively. The slider connecting seat (11) is fixedly provided with a sensor positioning block (21) that cooperates with the photoelectric sensors (10).

5. The quartz rod rotary welding device for ceramic wear-resistant guiding feeding according to claim 1, characterized in that, The front end of the welding head base plate (2) is provided with a reinforcing rib (16). One end of the reinforcing rib (16) is fixed to the welding head base plate (2), and the other end of the reinforcing rib (16) is attached to the side plate (14) and pressed against the back of the fixing plate (15) to form a triangular support.

6. The quartz rod rotary welding device for ceramic wear-resistant guiding feeding according to claim 1, characterized in that, The welding head base plate (2) has a terminal block mounting plate (18) at its rear end. A terminal block (19) is mounted on the terminal block mounting plate (18). The cables of the photoelectric sensor (10), servo rotary motor (12) and servo electric gripper (13) are led to the terminal block (19) through a drag chain (20). The drag chain (20) is installed parallel to one side of the linear module (7) and the slider connecting seat (11).

7. The quartz rod rotary welding device for ceramic wear-resistant guiding feeding according to claim 1, characterized in that, A protective cover (3) is fixedly provided on the outside of the welding head base plate (2), and the linear module (7), servo motor (9) and servo rotary motor (12) are located inside the protective cover (3).

8. The rotary welding device for ceramic wear-resistant guiding feed of quartz rods according to any one of claims 1 to 7, characterized in that, The robot (1), photoelectric sensor (10), servo rotary motor (12), servo electric gripper (13) and servo motor (9) are all controlled by a programmable logic controller.

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