A welding torch angle adjustment device
By using a mechanism for adjusting the vertical position and angle, combined with a self-locking device and a high-precision hinge design, the problems of low reliability and accuracy in welding torch adjustment are solved, improving the adaptability and stability during the welding process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI TIANGAO BRIDGE ENG CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-03
AI Technical Summary
Existing welding torch position and angle adjustment methods suffer from poor reliability and low precision, making it difficult to adapt to the welding needs of different sized board units.
By employing a vertical position adjustment mechanism and an angle adjustment mechanism, combined with the welding torch assembly's own angle adjustment device, continuous position and angle adjustment of the welding torch assembly can be achieved. The self-locking device and high-precision rotating shaft hinge design ensure the stability and accuracy of the adjustment.
It improves the adaptability of welding torches to different working conditions, shortens production line changeover time, and enhances posture stability and precision during the welding process.
Smart Images
Figure CN224445020U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding equipment technology, and in particular to a welding torch angle adjustment device. Background Technology
[0002] The steel box girder bridge deck structure currently used in bridges consists of plate units, which include longitudinal ribs and steel panels. During the manufacturing of plate units, the webs of the longitudinal ribs and the steel panels need to be welded together along the longitudinal corner seams. The longitudinal ribs are generally U-ribs.
[0003] Typically, the web of the longitudinal rib has a certain angle with the steel panel. The angle between the web and the steel panel varies for different specifications of plate units. During the welding process of the plate unit, the position and angle of the welding gun of the external welding machine need to be adjusted to match the external welding requirements of different specifications of plate units.
[0004] Currently, the welding torch position of the plate unit welding machine is mainly locked after adjustment by the telescopic structure, and the angle adjustment is mainly achieved by adjusting and locking the shaft.
[0005] All of the above adjustment methods suffer from poor locking reliability and low adjustment accuracy after adjustment. Utility Model Content
[0006] To solve the above-mentioned technical problems, this utility model provides a welding torch angle adjustment device. The technical solution is as follows:
[0007] A welding torch angle adjustment device includes a vertical position adjustment mechanism, a welding torch mounting plate, an angle adjustment mechanism, and a welding torch assembly. The track portion of the vertical position adjustment mechanism is detachably mounted on an external welding machine hanging beam. One side of the welding torch mounting plate is detachably mounted on the position moving portion of the vertical position adjustment mechanism and moves with the position moving portion. The angle adjustment mechanism includes a connecting member, a rotating assembly, and a locking assembly. One end of the connecting member is detachably mounted on the welding torch mounting plate. The rotating assembly includes a rotating arm, a rotating shaft, and a rotating arm fastener. One end of the rotating arm is provided with a cam-type locking accessory. The middle part of the rotating arm and the other end of the connecting member are both provided with rotating shaft through holes. The rotating shaft passes through the rotating shaft through holes of the rotating arm and the connecting member, respectively. The rotating shaft is locked by the rotating arm fastener. The locking assembly locks the cam-type locking accessory to the connecting member. The mounting plate of the welding torch assembly is detachably mounted on the other end of the rotating arm.
[0008] By adopting the above technical solution, the position moving part of the vertical position adjustment mechanism can realize continuous vertical position adjustment of the welding gun assembly along the track part. After the adjustment is completed, it can be locked based on the self-locking device. The angle adjustment mechanism realizes the angle adjustment of the welding gun assembly posture. Combined with the angle adjustment device of the welding gun assembly itself, the pitch angle and side swing angle can be adjusted, which is adapted according to the installation direction of the rotating arm.
[0009] The two work together to cover multiple scenarios such as flat welding, vertical welding, bevel welding, and variable angle bevel welding. Compared with the traditional single-dimensional adjustment solution, the adaptability of working conditions is improved and the production line changeover time is shortened.
[0010] Hinged design: The rotating arm and the connecting parts are hinged by a high-precision hinge to ensure smooth angle adjustment;
[0011] Cam-type locking accessories utilize the self-locking properties of cam curved surfaces, ensuring uniform distribution of contact stress during locking and minimal angular drift under vibration conditions, thus preventing posture deviation during welding.
[0012] The rotating arm fasteners, such as precision anti-loosening nuts, further lock the shaft clearance, achieving coarse adjustment and fine locking of the angle, and ensuring the stability of the welding torch posture.
[0013] Optionally, the cam-type locking accessory has multiple locking teeth. The locking assembly includes a locking shaft mounting part, a locking shaft rotating shaft, a locking shaft, and a locking shaft fastener. The connector has a locking shaft clearance hole. The locking shaft mounting part is detachably mounted on the connector and located on both sides of the locking shaft clearance hole. Both ends of the locking shaft rotating shaft are rotatably mounted on the locking shaft mounting part and pass through the locking shaft clearance hole. One end of the locking shaft is connected to the middle of the locking shaft rotating shaft. When the locking shaft rotates and engages with one of the multiple locking teeth, the locking shaft end and the cam-type locking accessory are locked by the locking shaft fastener.
[0014] By adopting the above technical solution, when adjusting the angle of the welding torch assembly by adjusting the rotating arm, first loosen the locking shaft fastener, then move the locking shaft to disengage from the locking teeth, allowing the rotating arm to rotate freely around the shaft. After the rotating arm is adjusted to the target angle, reverse the movement of the locking shaft to engage with the adjacent locking teeth. The locking teeth have trapezoidal tooth surfaces and a self-locking angle of less than or equal to °, utilizing mechanical self-locking characteristics to prevent spontaneous slippage. Multiple teeth form indexing positions, such as tooth pitch corresponding to ° for each position, quantifying the adjustment accuracy. Tighten the locking shaft fastener to lock the engagement state between the locking shaft and the locking teeth. The pre-tightening force of the fastener plus the double constraint of the tooth surface engagement rigidly locks the rotating arm and the connecting parts, resisting welding vibration.
[0015] Optionally, the vertical position adjustment mechanism is a linear slide, the linear track of the linear slide is the track part, and the slider of the linear slide is the position moving part.
[0016] By adopting the above technical solution, the linear slide can be a hand-cranked linear slide or an electric linear slide, which can realize stepless adjustment of the up and down position, and the locking is convenient and reliable.
[0017] Optionally, both the rotating arm fastener and the locking shaft fastener are Torx nuts.
[0018] By adopting the above technical solution, the plum nut is easy to manually tighten.
[0019] In summary, this utility model has at least one of the following beneficial technical effects:
[0020] This invention provides a welding torch angle adjustment device. The position moving part of the vertical adjustment mechanism can continuously adjust the vertical position of the welding torch assembly along the track. After adjustment, it can be locked using a self-locking device. The angle adjustment mechanism adjusts the angle of the welding torch assembly. Combined with the welding torch assembly's own angle adjustment device, it can adjust the pitch and sway angles, adapting to the installation direction of the rotating arm. Both work together to cover multiple scenarios such as flat welding, vertical welding, bevel welding, and variable-angle bevel welding. Compared to traditional single-dimensional adjustment solutions, it improves adaptability to different working conditions and shortens production line changeover time.
[0021] When adjusting the angle of the welding torch assembly by adjusting the rotating arm, first loosen the locking shaft fastener, then move the locking shaft to disengage from the locking teeth. The rotating arm will then rotate freely around the shaft. After the rotating arm is adjusted to the target angle, reverse the movement of the locking shaft to engage with the adjacent locking teeth. The locking teeth have trapezoidal tooth surfaces and utilize mechanical self-locking properties to prevent spontaneous slippage. Multiple teeth form indexing positions, quantifying the adjustment precision. Tighten the locking shaft fastener to lock the engagement between the locking shaft and the locking teeth. The preload of the fastener plus the double constraint of the tooth engagement rigidly locks the rotating arm and the connecting parts, resisting welding vibration. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of a welding torch angle adjustment device according to this utility model;
[0023] Figure 2 This is a side view of the welding torch angle adjustment device of this utility model;
[0024] Figure 3 yes Figure 1 A magnified schematic diagram of the structure of region A.
[0025] Explanation of reference numerals in the attached drawings: 11. Track section; 12. Moving section; 2. Welding torch mounting plate; 31. Connecting component; 321. Rotating arm; 322. Rotating shaft; 3221. Locking tooth; 323. Rotating arm fastener; 331. Tightening shaft mounting component; 332. Locking shaft rotating shaft; 333. Locking shaft; 334. Locking shaft fastener; 4. Welding torch assembly; 100. External welding machine hanging beam. Detailed Implementation
[0026] The present invention will be further described in detail below with reference to the accompanying drawings.
[0027] This utility model discloses a welding torch angle adjustment device.
[0028] Reference Figures 1-3A welding torch angle adjustment device includes a vertical position adjustment mechanism, a welding torch mounting plate 2, an angle adjustment mechanism, and a welding torch assembly 4. The track part 11 of the vertical position adjustment mechanism is detachably mounted on the outer welding machine hanging beam 100. One side of the welding torch mounting plate 2 is detachably mounted on the position moving part 12 of the vertical position adjustment mechanism and moves with the position moving part 12. The angle adjustment mechanism includes a connecting member 31, a rotating assembly, and a locking assembly. One end of the connecting member 31 is detachably mounted on the welding torch mounting plate 2. The rotating assembly includes a rotating arm 321, a rotating shaft 322, and a rotating arm fastener 323. One end of the rotating arm 321 is provided with a cam-type locking accessory. The middle part of the rotating arm 321 and the other end of the connecting member 31 are provided with rotating shaft through holes. The rotating shaft 322 passes through the rotating arm 321 and the rotating shaft through holes of the connecting member 31 respectively. The rotating shaft 322 is locked by the rotating arm fastener 323. The locking assembly locks the cam-type locking accessory to the connecting member 31. The mounting plate of the welding torch assembly 4 is detachably mounted on the other end of the rotating arm 321.
[0029] The position moving part 12 of the vertical position adjustment mechanism can continuously adjust the vertical position of the welding gun assembly 4 along the track part 11. After adjustment, it can be locked based on the self-locking device. The angle adjustment mechanism can adjust the angle of the welding gun assembly 4. Combined with the angle adjustment device of the welding gun assembly 4 itself, it can adjust the pitch angle and side swing angle, and adapt to the installation direction of the rotating arm.
[0030] The two work together to cover multiple scenarios such as flat welding, vertical welding, bevel welding, and variable angle bevel welding. Compared with the traditional single-dimensional adjustment solution, the adaptability of working conditions is improved and the production line changeover time is shortened.
[0031] Hinged design: The rotating arm 321 and the connecting piece 31 are hinged by a high-precision rotating shaft 322 to ensure smooth angle adjustment;
[0032] Cam-type locking accessories utilize the self-locking properties of cam curved surfaces, ensuring uniform distribution of contact stress during locking and minimal angular drift under vibration conditions, thus preventing posture deviation during welding.
[0033] The rotating arm fastener 323, such as the precision anti-loosening nut, further locks the shaft clearance, achieving coarse adjustment and fine locking of the angle, and ensuring the stability of the welding torch posture.
[0034] Optionally, the cam-type locking accessory is provided with multiple locking teeth 3221. The locking assembly includes a locking shaft mounting part 331, a locking shaft rotating shaft 332, a locking shaft 333, and a locking shaft fastener 334. A locking shaft clearance hole 311 is provided on the connecting part 31. The locking shaft mounting part 331 is detachably mounted on the connecting part 31 and located on both sides of the locking shaft clearance hole 311. Both ends of the locking shaft rotating shaft 332 are rotatably mounted on the locking shaft mounting part 331 and pass through the locking shaft clearance hole 311. One end of the locking shaft 333 is connected and mounted in the middle of the locking shaft rotating shaft 332. When the locking shaft 333 rotates and engages with one of the multiple locking teeth 3221, the end of the locking shaft 333 and the cam-type locking accessory are locked by the locking shaft fastener 334.
[0035] When adjusting the rotating arm 321 to achieve angle adjustment of the welding torch assembly 4, first loosen the locking shaft fastener 334, then move the locking shaft 333 to disengage from the locking teeth 3221. The rotating arm 321 rotates freely around the rotating shaft 322. After the rotating arm 321 is adjusted to the target angle, move the locking shaft 333 in the opposite direction to engage with the tooth groove of the adjacent locking teeth 3221. The locking teeth 3221 have trapezoidal tooth surfaces and a self-locking angle of less than or equal to 15°, using mechanical self-locking characteristics to prevent spontaneous slippage. Multiple teeth form indexing positions, such as 2° per gear, quantifying the adjustment accuracy. Tighten the locking shaft fastener 334 to lock the engagement state of the locking shaft and locking teeth. The pre-tightening force of the fastener plus the double constraint of the tooth surface engagement rigidly locks the rotating arm and the connecting parts to resist welding vibration.
[0036] Optionally, the vertical position adjustment mechanism is a linear slide, the linear track of the linear slide is the track part 11, and the slider of the linear slide is the position moving part 12.
[0037] Linear slides can be hand-cranked or electric, and can achieve stepless adjustment of the up and down position, with convenient and reliable locking.
[0038] Optionally, both the rotating arm fastener 323 and the locking shaft fastener 334 are Torx nuts.
[0039] The plum nut facilitates manual tightening.
[0040] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made according to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A welding torch angle adjustment device characterized by: The system includes a vertical position adjustment mechanism, a welding torch mounting plate (2), an angle adjustment mechanism, and a welding torch assembly (4). The track part (11) of the vertical position adjustment mechanism is detachably mounted on the outer welding machine hanging beam (100). One side of the welding torch mounting plate (2) is detachably mounted on the position moving part (12) of the vertical position adjustment mechanism and moves with the position moving part (12). The angle adjustment mechanism includes a connecting piece (31), a rotating assembly, and a locking assembly. One end of the connecting piece (31) is detachably mounted on the welding torch mounting plate (2). The rotating assembly includes a rotating arm (31). 21) Rotating shaft (322) and rotating arm fastener (323). One end of the rotating arm (321) is provided with a cam-type locking accessory. The middle part of the rotating arm (321) and the other end of the connector (31) are provided with rotating shaft through holes. The rotating shaft (322) passes through the rotating shaft through holes of the rotating arm (321) and the connector (31) respectively. The rotating shaft (322) is locked by the rotating arm fastener (323). The locking assembly locks the cam-type locking accessory to the connector (31). The mounting plate of the welding gun assembly (4) is detachably installed at the other end of the rotating arm (321).
2. A torch angle adjustment device according to claim 1, wherein: The cam-type locking fitting is provided with multiple locking teeth (3221). The locking assembly includes a locking shaft mounting part (331), a locking shaft rotating shaft (332), a locking shaft (333), and a locking shaft fastener (334). The connector (31) has a locking shaft clearance hole (311). The locking shaft mounting part (331) is detachably mounted on the connector (31) and located on both sides of the locking shaft clearance hole (311). The two ends of the locking shaft rotating shaft (332) are rotatably mounted on the locking shaft mounting part (331) and pass through the locking shaft clearance hole (311). One end of the locking shaft (333) is connected to the middle of the locking shaft rotating shaft (332). When the locking shaft (333) rotates and engages with one of the multiple locking teeth (3221), the end of the locking shaft (333) and the cam-type locking fitting are locked by the locking shaft fastener (334).
3. A torch angle adjustment device according to claim 2, wherein: The vertical position adjustment mechanism is a linear slide, the linear track of the linear slide is the track part (11), and the slider of the linear slide is the position moving part (12).
4. The welding torch angle adjustment device according to claim 2, characterized in that: Both the rotating arm fastener (323) and the locking shaft fastener (334) are Phillips nuts.