Valve rod connecting body welding tool

Abstract

The utility model discloses a valve rod connecting body welding tool which comprises a base, an adjusting mechanism is installed on the top of the base, the adjusting mechanism comprises a shell fixed on the base, and a motor is installed on the side face of the shell. Compared with the prior art, by arranging the clamping mechanism and the supporting mechanism, the valve rod connecting body can be stably fixed, displacement and shaking in the welding process are effectively avoided, the welding precision of the valve rod connecting body is greatly improved, the assembly precision of valve products is ensured, the product quality is improved, and the production efficiency is improved. Meanwhile, due to the arrangement of the adjusting mechanism, an operator can quickly and conveniently adjust the welding angle, manual adjustment and calibration in a traditional mode do not need to spend a lot of time, the workpiece clamping time is shortened due to the efficient operation characteristic of the clamping and supporting mechanism, the welding operation period is shortened on the whole, the production efficiency is improved, and the production cost is reduced. The requirements of industrial production on efficient production are met.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular to a welding fixture for valve stem connectors. Background Technology

[0002] In industrial production, the valve stem connector is a key component of the valve system, and its welding quality directly affects the overall performance and service life of the valve. Currently, the welding of valve stems and connectors mainly relies on traditional welding processes. Common manual arc welding demands extremely high skill levels from the welder, and during prolonged operation, welders are prone to hand tremors due to fatigue. This not only leads to unstable welding current but also causes angular deviations between the welding rod and the workpiece, resulting in welds of varying widths and heights, severely impacting the accuracy of the welding position. According to incomplete statistics, when using manual arc welding for valve stem connectors, the welding position deviation can reach ±2mm, which is unacceptable for valve products with stringent assembly precision requirements and represents a significant shortcoming. Therefore, we propose a welding fixture for valve stem connectors. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a welding fixture for valve stem connectors.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A welding fixture for a valve stem connector includes a base, an adjustment mechanism mounted on the top of the base, the adjustment mechanism including a housing fixed to the base, a motor mounted on the side of the housing, an output shaft of the motor inserted into the housing and connected to a worm gear, a rotating shaft rotatably connected inside the housing, a worm gear fixedly sleeved on the rotating shaft, a turntable mounted on the top of the rotating shaft, a clamping mechanism mounted on the top of the turntable for fixing a portion of the valve stem connector, and a support mechanism mounted on the top of the clamping mechanism for fixing another portion of the valve stem connector.

[0006] Preferably, the worm gear and the worm are meshed and driven, and the adjusting mechanism is used to adjust the welding angle.

[0007] Preferably, the clamping mechanism includes a fixed base fixed on the turntable, a positioning groove is provided on the upper part of the fixed base, a first sliding groove is installed at the bottom of the positioning groove, a first adjusting rod is rotatably connected inside the first sliding groove, both ends of the first adjusting rod are threadedly connected to threaded sleeves, a first slider is installed on the threaded sleeves, and a first clamping plate is fixed on the top of the first slider.

[0008] Preferably, the threads at both ends of the first adjusting rod have opposite directions of rotation, the first slider is slidably connected to the first slide groove, and the first clamping plate is slidably connected to the positioning groove.

[0009] Preferably, the support mechanism includes a support frame fixed to the side of the clamping mechanism. The support frame has a second sliding groove. Both ends of the second sliding groove are fixed with fixing plates. A second adjusting rod is installed between the two fixing plates. Both ends of the second adjusting rod are equipped with second sliders. A second clamping plate is installed on the side of the second slider.

[0010] Preferably, the second slider and the second groove are slidably connected, and the threads at both ends of the second adjusting rod rotate in opposite directions.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention, by setting up a clamping mechanism and a support mechanism, can stably fix the valve stem connector, effectively avoiding displacement and shaking during the welding process, greatly improving the welding accuracy of the valve stem connector, ensuring the assembly accuracy of valve products, and improving product quality. At the same time, the setting of the adjustment mechanism allows operators to quickly and conveniently adjust the welding angle without spending a lot of time on manual adjustment and calibration as in traditional methods. Furthermore, the efficient operation characteristics of the clamping and support mechanisms reduce the workpiece clamping time, shorten the overall welding operation cycle, improve production efficiency, and meet the industrial production demand for high-efficiency production. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a welding fixture for a valve stem connector proposed in this utility model;

[0014] Figure 2 for Figure 1 Installation diagram of the central adjustment mechanism;

[0015] Figure 3 for Figure 1 Cross-sectional view of the clamping mechanism;

[0016] Figure 4 for Figure 1 A cross-sectional view of the central support mechanism.

[0017] In the diagram: 1. Base; 2. Adjustment mechanism; 21. Housing; 22. Motor; 23. Worm gear; 24. Rotating shaft; 25. Worm wheel; 26. Turntable; 3. Clamping mechanism; 31. Fixed seat; 32. Positioning groove; 33. First slide groove; 34. First adjusting rod; 35. Threaded sleeve; 36. First slider; 37. First clamping plate; 4. Support mechanism; 41. Support frame; 42. Second slide groove; 43. Fixed plate; 44. Second adjusting rod; 45. Second slider; 46. Second clamping plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figure 1-4 A welding fixture for a valve stem connector includes a base 1, an adjusting mechanism 2 mounted on the top of the base 1, and a housing 21 fixed to the base 1. A motor 22 is mounted on the side of the housing 21, the output shaft of the motor 22 is inserted into the housing 21 and connected to a worm gear 23, a rotating shaft 24 is rotatably connected inside the housing 21, a worm wheel 25 is fixedly sleeved on the rotating shaft 24, and a turntable 26 is mounted on the top of the rotating shaft 24. The worm wheel 25 and the worm gear 23 are meshed and driven. The adjusting mechanism 2 is used to adjust the welding angle. A clamping mechanism 3 is mounted on the top of the turntable 26 for clamping the valve stem connector. A portion of the valve stem connector is fixed. A support mechanism 4 is mounted on the top of the clamping mechanism 3. The support mechanism 4 is used to fix the other part of the valve stem connector. The clamping mechanism 3 includes a fixed seat 31 fixed on the turntable 26. A positioning groove 32 is provided on the upper part of the fixed seat 31. A first sliding groove 33 is installed at the bottom of the positioning groove 32. A first adjusting rod 34 is rotatably connected inside the first sliding groove 33. Both ends of the first adjusting rod 34 are threadedly connected to threaded sleeves 35. A first slider 36 is mounted on the threaded sleeves 35. A first clamping plate 37 is fixed to the top of the first slider 36. The threads at both ends of the first adjusting rod 34... With opposite rotation directions, the first slider 36 is slidably connected to the first slide groove 33, and the first clamping plate 37 is slidably connected to the positioning groove 32. The support mechanism 4 includes a support frame 41 fixed to the side of the clamping mechanism 3. A second slide groove 42 is provided on the support frame 41. Fixed plates 43 are fixed to both ends of the second slide groove 42. A second adjusting rod 44 is installed between the two fixed plates 43. A second slider 45 is installed to both ends of the second adjusting rod 44. A second clamping plate 46 is installed on the side of the second slider 45. The second slider 45 is slidably connected to the second slide groove 42. The threads at both ends of the second adjusting rod 44 have opposite rotation directions. By setting up clamping and support mechanisms, the valve stem connector can be firmly fixed, effectively avoiding displacement and shaking during the welding process. This greatly improves the welding accuracy of the valve stem connector, ensures the assembly accuracy of the valve product, and enhances product quality. At the same time, the adjustment mechanism allows operators to quickly and conveniently adjust the welding angle without having to spend a lot of time on manual adjustment and calibration as in traditional methods. Furthermore, the efficient operation of the clamping and support mechanisms reduces the workpiece clamping time, shortens the overall welding operation cycle, improves production efficiency, and meets the industrial production demand for high-efficiency production.

[0020] In the initial state, the motor 22 of the adjusting mechanism 2 is in a stopped state, the first adjusting rod 34 of the clamping mechanism 3 and the second adjusting rod 44 of the support mechanism 4 are in the initial position, and the first clamping plate 37 and the second clamping plate 46 are both in a released state. When welding of the valve stem and connector is required, firstly, a part of the valve stem connector is placed in the positioning groove 32 of the fixed seat 31 of the clamping mechanism 3. The first adjusting rod 34 is rotated, and the first adjusting rod 34 drives the first slider 36 to slide in the first slide groove 33 through the threaded connection with the threaded sleeve 35. Since the threads at both ends of the first adjusting rod 34 have opposite directions of rotation, the two first sliders 36 move in opposite directions, thereby bringing the first clamping plate 37 close to and clamping a part of the valve stem connector. The other part of the valve stem connector is aligned with the welding position. Then, the second adjusting rod 44 is rotated, and the second adjusting rod 44 drives the second slider 45 to slide in the second slide groove 42 through the threaded transmission with the second slider 45. Since the threads at both ends of the second adjusting rod 44 have opposite directions of rotation, the two second sliders 45 move in opposite directions. The second slider 45 adjusts the position of the second clamping plate 46 to adapt to the other part of the valve stem connector and provide stable support. If the welding angle needs to be adjusted, start the motor 22 of the adjustment mechanism 2. The output shaft of the motor 22 drives the worm 23 to rotate. The meshing transmission between the worm 23 and the worm wheel 25 causes the rotating shaft 24 to rotate, which in turn drives the turntable 26 to rotate to the required angle, so as to achieve precise adjustment of the welding angle of the valve stem connector.

[0021] In summary, compared with existing technologies, this utility model, by setting up a clamping mechanism and a support mechanism, can stably fix the valve stem connector, effectively avoiding displacement and shaking during the welding process, greatly improving the welding accuracy of the valve stem connector, ensuring the assembly accuracy of valve products, and improving product quality. At the same time, the setting of the adjustment mechanism allows operators to quickly and conveniently adjust the welding angle without spending a lot of time on manual adjustment and calibration as in traditional methods. Furthermore, the efficient operation characteristics of the clamping and support mechanisms reduce the workpiece clamping time, shorten the overall welding operation cycle, improve production efficiency, and meet the industrial production demand for high-efficiency production.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A welding fixture for a valve stem connector, comprising a base (1), characterized in that, An adjustment mechanism (2) is installed on the top of the base (1). The adjustment mechanism (2) includes a housing (21) fixed on the base (1). A motor (22) is installed on the side of the housing (21). The output shaft of the motor (22) is inserted into the interior of the housing (21) and connected to a worm gear (23). A rotating shaft (24) is rotatably connected inside the housing (21). A worm wheel (25) is fixedly sleeved on the rotating shaft (24). A turntable (26) is installed on the top of the rotating shaft (24). A clamping mechanism (3) is installed on the top of the turntable (26). The clamping mechanism (3) is used to fix a part of the valve stem connector. A support mechanism (4) is installed on the top of the clamping mechanism (3). The support mechanism (4) is used to fix another part of the valve stem connector.

2. The valve stem connector welding fixture according to claim 1, characterized in that, The worm wheel (25) and the worm (23) are meshed and driven, and the adjustment mechanism (2) is used to adjust the welding angle.

3. The valve stem connector welding fixture according to claim 1, characterized in that, The clamping mechanism (3) includes a fixed seat (31) fixed on the turntable (26). The fixed seat (31) has a positioning groove (32) on its upper part. A first sliding groove (33) is installed at the bottom of the positioning groove (32). A first adjusting rod (34) is rotatably connected inside the first sliding groove (33). Both ends of the first adjusting rod (34) are threadedly connected to threaded sleeves (35). A first slider (36) is installed on the threaded sleeve (35). A first clamping plate (37) is fixed on the top of the first slider (36).

4. The valve stem connector welding fixture according to claim 3, characterized in that, The threads at both ends of the first adjusting rod (34) are in opposite directions, the first slider (36) is slidably connected to the first slide groove (33), and the first clamping plate (37) is slidably connected to the positioning groove (32).

5. The valve stem coupling welding fixture of claim 1, wherein: The support mechanism (4) includes a support frame (41) fixed to the side of the clamping mechanism (3). The support frame (41) has a second slide groove (42). Both ends of the second slide groove (42) are fixed with fixing plates (43). A second adjusting rod (44) is installed between the two fixing plates (43). Both ends of the second adjusting rod (44) are installed with second sliders (45). A second clamping plate (46) is installed on the side of the second slider (45).

6. The valve stem connector welding fixture according to claim 5, characterized in that, The second slider (45) and the second groove (42) are slidably connected, and the threads at both ends of the second adjusting rod (44) are in opposite directions.

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