Welding turnover device for valve production

Abstract

The invention discloses a welding turnover device for valve production, and relates to the technical field of valve production. A flat plate is arranged between the outer walls of the two bases, a driving mechanism is arranged at the tops of the bases, a connecting column is fixedly installed at the output end of a motor in the driving mechanism, a turnover mechanism is fixedly installed on the side, away from the driving mechanism, of the connecting column, and an anti-interference device for absorbing smoke is arranged on the back of the turnover mechanism. And an irradiation device convenient for workers to observe the welding effect is arranged around the anti-interference device. Through sufficient attachment and downward pressing of the elastic bottom of the top pressing plate, transverse limiting of the cambered surface block and self-adaptive contraction of the telescopic inclined plate, the limiting sliding conditions of valves of different specifications before overturning do not need to be observed emphatically, the stability of the valves during overturning is fully ensured by means of longitudinal and transverse mechanical limiting, and the stability of the valves during overturning is ensured. The limiting process is simplified; and the energy consumption of workers is reduced.

Description

Technical Field

[0001] This invention relates to the field of valve manufacturing technology, specifically to a welding flipping device for valve manufacturing. Background Technology

[0002] Valves are control components in fluid transport systems, with functions such as shut-off, regulation, flow guidance, backflow prevention, pressure stabilization, flow diversion, or overflow pressure relief. With the rapid development of industrial systems, the variety and specifications of valves are constantly increasing, from gate valves to various valves used in extremely complex automatic control systems.

[0003] Patent publication number CN222449031U discloses a welding flipping device for valve production, comprising two bases, with guide columns fixedly connected to the inner sides of both bases, and the tops of both guide columns fixedly connected to a connecting plate. Column sleeves are slidably connected to the outer sides of both guide columns, and the outer sides of both column sleeves are fixedly connected to the inner sides of a mounting base. This patent, by setting up a guide rail, slider, rack, cylinder, cylinder push rod, connector, rotating shaft, and gear, allows the valve to be flipped during welding simply by activating the cylinder. The cylinder push rod extends, the connector moves to the left, the slider slides to the left along the top of the guide rail, and the rack moves to the left. Because the rack and gear mesh, the gear rotates, causing the rotating shaft to rotate, thus flipping the valve. Compared to existing technologies, this eliminates the need for workers to repeatedly put on and take off gloves, accelerating valve production speed.

[0004] However, the device still has shortcomings: the device uses gear rotation to achieve valve flipping, thereby speeding up production. However, during the clamping and limiting process before valve welding, because the valves have various specifications, different specifications of valves require the staff to constantly observe the valve limiting situation and adjust the processing equipment during the limiting process to avoid large positional deviations of the valves. The frequent adjustment process can easily increase the complexity of production and aggravate the staff's energy consumption. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a welding flipping device for valve production, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a welding flipping device for valve production, comprising two bases, a flat plate disposed between the outer walls of the two bases, a driving mechanism disposed on the top of the bases, a connecting column fixedly mounted on the motor output end inside the driving mechanism, a flipping mechanism fixedly mounted on the side of the connecting column away from the driving mechanism, an anti-interference device for absorbing smoke disposed on the back of the flipping mechanism, an irradiation device for facilitating observation of the welding effect by workers disposed around the anti-interference device, sliding mechanisms disposed on both sides inside the flipping mechanism, a top pressure plate slidably mounted inside the sliding mechanism, a telescopic inclined plate hinged to the bottom edge of the top pressure plate by a torsion spring, an arc-shaped block hinged to the bottom of the telescopic end of the telescopic inclined plate, an elliptical plate fixedly mounted on the outer wall of the flipping mechanism, the elliptical plate movably penetrating through the outer wall of the connecting column, a T-shaped plate slidably mounted inside the flat plate by a spring, and an extension plate hinged inside the groove of the flat plate by a torsion spring.

[0007] According to the above technical solution, two grooves are symmetrically opened at the bottom of the flat plate, the drive mechanism has a built-in motor, the flipping mechanism is located above the flat plate, the bottom of the top pressure plate is made of elastic material, the telescopic inclined plate is elastically designed, the bottom of the arc block is slidably installed on the bottom of the inner wall of the flipping mechanism, the top of the T-shaped plate is in contact with the outer wall of the elliptical plate, and the extension plate is located on the movement trajectory of the bottom end of the T-shaped plate on the side close to the flat plate.

[0008] According to the above technical solution, the top pressure plate limits the top of the valve by sliding down through a sliding mechanism, the arc-shaped block limits the outer wall of the valve by telescopic inclined plate, and the extension plate increases the bearing area of ​​the flat plate when the flipping mechanism flips. The valve to be welded is placed at the bottom of the inner wall of the flipping mechanism. The sliding mechanism is activated, and the sliding mechanism drives the top pressure plate to move closer to the top of the valve. The elastic material at the bottom of the top pressure plate fully contacts the irregular top of the valve. At this time, the top pressure plate applies a vertical downward pressure to the valve. At the same time, when the top pressure plate descends, it drives the telescopic inclined plate to move synchronously. The bottom of the telescopic inclined plate is limited by the arc-shaped block, which causes the hinge shaft at the top of the telescopic inclined plate to generate a rotational force. At this time, the telescopic inclined plate moves in an arc trajectory and pushes the arc-shaped block along the flipping mechanism. The inner wall slides horizontally at the bottom. When the arc block contacts the valve, if the top pressure plate continues to move downward, the valve's contact will cause the telescopic inclined plate to begin to retract. After the limit is completed, welding is performed. If the welding position needs to be flipped, the motor output will drive the connecting column to rotate. The connecting column will drive the flipping mechanism to revolve for position adjustment. When the flipping mechanism flips, it will drive the elliptical plate to revolve. When the elliptical plate revolve, it will release the limit on the top of the T-shaped plate. The T-shaped plate will slide upward along the inside of the flat plate by the spring force, and the top of the T-shaped plate will contact the outer wall of the elliptical plate through the spring. At this time, the bottom two ends of the T-shaped plate will contact the extension plate, and the hinge shaft between the extension plate and the flat plate will begin to rotate. The extension plate will flip upward in an arc trajectory. When the T-shaped plate returns to its original position, the extension plate will return to its original position through the torsion spring.

[0009] According to the above technical solution, the anti-interference device includes a U-shaped telescopic column, which is fixedly installed on the back of the drive mechanism on the side near the flipping mechanism. An assist wheel is rotatably installed inside the mounting groove of the telescopic end of the U-shaped telescopic column, and a smoking machine is fixedly installed on the back of the telescopic end of the U-shaped telescopic column.

[0010] According to the above technical solution, the telescopic end of the U-shaped telescopic column is elastically designed, and an installation groove is provided at the telescopic end of the U-shaped telescopic column. The outer wall of the assist wheel contacts the outer wall of the elliptical plate. The assist wheel reduces the wear between the elliptical plate and the U-shaped telescopic column when the elliptical plate revolves. The smoke extraction machine directionally extracts the smoke generated during the welding of the workpiece. When the elliptical plate revolves, it rubs against and abuts the outer wall of the assist wheel. The assist wheel rotates inside the telescopic end of the U-shaped telescopic column through friction and pushes the U-shaped telescopic column to extend away from the drive mechanism. The telescopic end of the U-shaped telescopic column drives the smoke extraction machine to move synchronously, so that the smoke extraction machine can still extract the smoke that permeates the welding area when the flipping mechanism flips.

[0011] According to the above technical solution, a transmission rod is rotatably mounted on the telescopic end of the U-shaped telescopic column near the assist wheel. A non-self-locking spiral groove is formed on the outer wall of the transmission rod. A collar is movably mounted through the spiral groove. A pull plate is hinged to the outer wall of the collar via a torsion spring. The end of the pull plate away from the assist wheel is hinged to the outer wall of the fixed end of the U-shaped telescopic column via a torsion spring. Several filter plates are equidistantly and fixedly mounted on the outer wall of the transmission rod. The filter plates are located on the front of the smoking machine and intercept particulate matter carried in the smoke. When the telescopic column moves horizontally, it drives the transmission rod to move synchronously. The transmission rod drives the collar to move synchronously. When the collar moves horizontally, it is limited by the pull plate, and the pull plate is limited by the fixed end of the U-shaped telescopic column. At this time, the hinge shaft of the pull plate starts to rotate. Under the limitation of the pull plate, the collar is caused to slide horizontally along the outer wall of the non-self-locking spiral groove of the transmission rod. The limitation of the spiral groove causes the transmission rod to start to rotate. When the transmission rod rotates, the filter plate revolves around it. The transmission rod revolves in front of the smoke machine to intercept the particulate matter carried in the smoke.

[0012] According to the above technical solution, the irradiation device includes an L-shaped sliding plate, the top of which is fixedly installed at the bottom of the smoking machine, the bottom of which is slidably installed at the top of the flat plate, a semi-circular block fixedly installed on the top surface of the L-shaped sliding plate, and two vertical plates symmetrically and fixedly installed on the top of the flat plate. A mirror panel is slidably installed on one side of the two vertical plates close to each other by a spring.

[0013] According to the above technical solution, the bottom of the mirror panel is designed with an arc surface. When the mirror panel is flipped by the flipping mechanism, it reflects the blind area of ​​the workpiece. The arc surface at the bottom of the mirror panel is located on the movement trajectory of the semi-circular block. When the smoke extractor moves away from the flipping mechanism, the smoke extractor drives the L-shaped slide plate to slide synchronously along the top of the plate. The L-shaped slide plate drives the semi-circular block to move synchronously. When the semi-circular block moves horizontally, it will abut against the arc surface at the bottom of the mirror panel. With the abutment of the semi-circular block, the mirror panel is prompted to slide upward along the surface of the vertical plate. At this time, when the flipping mechanism flips to be parallel to the plate, the mirror panel reflects the surface of the valve located below the flipping mechanism at a closer distance.

[0014] According to the above technical solution, a straight plate is slidably installed inside the bottom end of the L-shaped sliding plate through a spring. A cover plate is fixedly installed inside the straight plate. The end of the cover plate near the vertical plate contacts the top of the mirror panel. A reset block is fixedly installed at the bottom of the straight plate. The reset block causes the straight plate to reset to the required height to match the top of the mirror panel through its own weight. When the L-shaped sliding plate moves the straight plate horizontally, the straight plate pulls the cover plate to move synchronously. At this time, the cover plate removes its obstruction of the mirror panel, making it easier for staff to observe through the mirror panel. At the same time, the cover plate generates an upward force under the push of the mirror panel. At this time, the cover plate causes the straight plate to slide upward along the inside of the L-shaped sliding plate. The straight plate drives the reset block to move synchronously. Then, with the help of the spring force and the gravity of the reset block, the straight plate is reset. That is, after the mirror panel is reset, the cover plate obstructs its top again.

[0015] This invention provides a welding flipping device for valve manufacturing. It has the following advantages:

[0016] (1) This invention uses a combination of a flipping mechanism, a sliding mechanism, a top pressure plate, a telescopic inclined plate, an arc block, an elliptical plate, a T-shaped plate, and an extension plate. Through the full contact and downward pressure of the elastic bottom of the top pressure plate, and the lateral limiting of the arc block and the adaptive contraction of the telescopic inclined plate, there is no need to focus on observing the limiting sliding situation of different specifications of valves before flipping. The stability of the valve during flipping is fully ensured by the longitudinal and lateral mechanical limiting, which simplifies the limiting process and reduces the energy consumption of the staff. By flipping the extension plate, the bearing area of ​​the plate on the flipping mechanism is increased, which avoids the reduction of the limiting effect on the valve when the equipment fails, so that the valve will fall off during the flipping process and directly collide with the ground, thus reducing the probability of valve damage due to collision.

[0017] (2) The present invention, through the setting of an anti-interference device, uses an elliptical plate, a U-shaped telescopic column, a booster wheel, a smoke extractor, a transmission rod, a collar, a pull plate and a filter plate to cooperate. The booster wheel rotates to reduce the wear between the elliptical plate and the U-shaped telescopic column. At the same time, the U-shaped telescopic column ensures that the smoke extractor will not block the flipping trajectory of the flipping mechanism and absorbs the smoke generated during welding, avoiding smoke from obstructing the view and contaminating the valve. The filter plate rotates evenly and effectively removes particulate matter carried in the smoke, preventing particulate matter from corroding the smoke extractor for a long time, causing internal blockage and reducing the smoke extraction effect. This further avoids smoke from obstructing the welding view of the workers or inhaling particulate matter and affecting their health.

[0018] (3) The present invention, through the setting of the irradiation device, uses a smoke extractor, an L-shaped slide plate, a semi-circular block, a vertical plate, a mirror plate, a straight plate, a cover plate and a reset block to illuminate the area below the valve after it is flipped. This allows the staff to directly observe the welding quality in the blind spot of the valve's position when changing the welding position. The flipping mechanism does not need to rotate the valve around once for observation and then adjust it to the required welding position, thus optimizing the welding process. The cover plate prevents the mirror plate from refracting the welding light source during the non-flipping welding stage, thus avoiding the glaring light source from affecting the staff's vision and causing welding defects. At the same time, the cover plate reduces the probability of dirt adhering to the mirror plate during non-use stages, ensuring the cleanliness of the mirror surface and avoiding affecting the staff's observation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the entire invention;

[0020] Figure 2 This is a cross-sectional schematic diagram of the entire invention;

[0021] Figure 3 This is a schematic diagram of the peripheral structure of the flipping mechanism of the present invention;

[0022] Figure 4 This is a schematic diagram of the bottom view of the peripheral structure of the flipping mechanism of the present invention;

[0023] Figure 5 This is a schematic diagram of the anti-interference device of the present invention from the rear view.

[0024] Figure 6 This is an enlarged schematic diagram of the overall structure of the anti-interference device of the present invention;

[0025] Figure 7 This is a schematic diagram of the irradiation device of the present invention;

[0026] Figure 8 This is a cross-sectional schematic diagram of the irradiation device of the present invention.

[0027] In the diagram: 1. Base; 2. Flat plate; 3. Drive mechanism; 4. Connecting column; 5. Tilting mechanism; 6. Sliding mechanism; 7. Top pressure plate; 8. Telescopic inclined plate; 9. Arc block; 10. Elliptical plate; 11. T-shaped plate; 12. Extension plate; 13. Anti-interference device; 131. U-shaped telescopic column; 132. Assist wheel; 133. Smoking machine; 134. Transmission rod; 135. Collar; 136. Pull plate; 137. Filter plate; 14. Irradiation device; 141. L-shaped sliding plate; 142. Semicircular block; 143. Vertical plate; 144. Mirror plate; 145. Straight plate; 146. Cover plate; 147. Reset block. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] Please see Figures 1-8 One embodiment of the present invention is as follows: a welding flipping device for valve production includes two bases 1, a flat plate 2 is provided between the outer walls of the two bases 1, a driving mechanism 3 is provided on the top of the bases 1, a connecting column 4 is fixedly installed at the motor output end inside the driving mechanism 3, a flipping mechanism 5 is fixedly installed on the side of the connecting column 4 away from the driving mechanism 3, an anti-interference device 13 for absorbing smoke is provided on the back of the flipping mechanism 5, an irradiation device 14 for easy observation of welding effect by workers is provided around the anti-interference device 13, sliding mechanisms 6 are provided on both sides inside the flipping mechanism 5, a top pressure plate 7 is slidably installed inside the sliding mechanism 6, a telescopic inclined plate 8 is hinged to the bottom edge of the top pressure plate 7 by a torsion spring, an arc surface block 9 is hinged to the bottom of the telescopic end of the telescopic inclined plate 8, an elliptical plate 10 is fixedly installed on the outer wall of the flipping mechanism 5, the elliptical plate 10 moves through the outer wall of the connecting column 4, a T-shaped plate 11 is slidably installed inside the flat plate 2 by a spring, and an extension plate 12 is hinged inside the groove of the flat plate 2 by a torsion spring.

[0030] Two grooves are symmetrically opened at the bottom of the flat plate 2. The drive mechanism 3 has a built-in motor. The flipping mechanism 5 is located above the flat plate 2. The bottom of the top pressure plate 7 is made of elastic material. The telescopic inclined plate 8 is designed with elasticity. The bottom of the arc block 9 is slidably installed on the bottom of the inner wall of the flipping mechanism 5. The top of the T-shaped plate 11 contacts the outer wall of the elliptical plate 10. The extension plate 12 is located on the movement trajectory of the bottom end of the T-shaped plate 11 near the side of the flat plate 2.

[0031] The top pressure plate 7 moves down through the sliding mechanism 6 to limit the top of the valve, the arc block 9 limits the outer wall of the valve through the telescopic inclined plate 8, and the extension plate 12 increases the bearing area of ​​the plate 2 when the flipping mechanism 5 flips.

[0032] With the full fit and downward pressure of the elastic bottom of the top pressure plate 7, and the lateral limiting of the arc block 9 and the adaptive contraction of the telescopic inclined plate 8, there is no need to focus on observing the limiting and sliding situation of valves of different specifications before flipping. The stability of the valve during flipping is fully ensured by the longitudinal and lateral mechanical limiting, which simplifies the limiting process and reduces the energy consumption of the staff. By flipping the extension plate 12, the bearing area of ​​the plate 2 on the flipping mechanism 5 is increased, which avoids the reduction of the limiting effect on the valve when the equipment fails, so that the valve will fall off during the flipping process and directly hit the ground, thus reducing the probability of valve damage due to impact.

[0033] In use, place the valve to be welded at the bottom of the inner wall of the flipping mechanism 5, and start the sliding mechanism 6. The sliding mechanism 6 drives the top pressure plate 7 to move closer to the top of the valve. The elastic material at the bottom of the top pressure plate 7 fully contacts the irregular top of the valve. At this time, the top pressure plate 7 applies vertical downward pressure to the valve. At the same time, as the top pressure plate 7 descends, it drives the telescopic inclined plate 8 to move synchronously. The bottom of the telescopic inclined plate 8 is limited by the arc surface block 9, which causes the hinge shaft at the top of the telescopic inclined plate 8 to generate a rotational force. At this time, the telescopic inclined plate 8 moves in an arc trajectory and pushes the arc surface block 9 to slide horizontally along the bottom of the inner wall of the flipping mechanism 5. When the arc surface block 9 touches the valve, if the top pressure plate 7 continues to move downward, the resistance of the valve will cause the telescopic inclined plate 8 to move horizontally. The telescopic end begins to retract, and welding is performed after the limit is completed. If the welding position needs to be flipped, the connecting column 4 is rotated through the motor output end. The connecting column 4 drives the flipping mechanism 5 to revolve for position adjustment. When the flipping mechanism 5 flips, it drives the elliptical plate 10 to revolve. When the elliptical plate 10 revolves, the limit on the top of the T-shaped plate 11 is released. The T-shaped plate 11 slides upward along the inside of the flat plate 2 by the spring force, and the top of the T-shaped plate 11 contacts the outer wall of the elliptical plate 10 through the spring. At this time, the bottom two ends of the T-shaped plate 11 abut against the extension plate 12. The hinge axis between the extension plate 12 and the flat plate 2 begins to rotate. The extension plate 12 flips upward in an arc trajectory. When the T-shaped plate 11 is reset, the extension plate 12 is reset by the torsion spring.

[0034] According to the above embodiments, through the full contact and downward pressure of the elastic bottom of the top pressure plate 7, and the lateral limiting of the arc block 9 and the adaptive contraction of the telescopic inclined plate 8, there is no need to focus on observing the limiting sliding situation of valves of different specifications before flipping. The stability of the valve during flipping is fully ensured by the longitudinal and lateral mechanical limiting, which simplifies the limiting process and reduces the energy consumption of the staff. By flipping the extension plate 12, the bearing area of ​​the plate 2 on the flipping mechanism 5 is increased, which avoids the reduction of the limiting effect on the valve when the equipment fails, so that the valve will fall off during the flipping process and directly collide with the ground, thus reducing the probability of valve damage due to collision.

[0035] Please see Figures 1-8 Based on the above embodiments, another embodiment of the present invention further includes an anti-interference device 13;

[0036] The anti-interference device 13 includes a U-shaped telescopic column 131, which is fixedly installed on the back of the drive mechanism 3 near the flipping mechanism 5. An auxiliary wheel 132 is rotatably installed inside the mounting groove of the telescopic end of the U-shaped telescopic column 131, and a smoking machine 133 is fixedly installed on the back of the telescopic end of the U-shaped telescopic column 131.

[0037] The telescopic end of the U-shaped telescopic column 131 is designed to be flexible, and the telescopic end of the U-shaped telescopic column 131 is provided with an installation groove. The outer wall of the assist wheel 132 contacts the outer wall of the elliptical plate 10. The assist wheel 132 reduces the wear between the elliptical plate 10 and the U-shaped telescopic column 131 when the elliptical plate 10 revolves. The smoke extraction machine 133 directionally extracts the smoke generated during the welding of the workpiece.

[0038] A transmission rod 134 is rotatably mounted on the telescopic end of the U-shaped telescopic column 131 near the side of the assist wheel 132. The outer wall of the transmission rod 134 has a non-self-locking spiral groove. A collar 135 is movably mounted through the outer wall of the spiral groove of the transmission rod 134. A pull plate 136 is hinged to the outer wall of the collar 135 by a torsion spring. The end of the pull plate 136 away from the assist wheel 132 is hinged to the outer wall of the fixed end of the U-shaped telescopic column 131 by a torsion spring. Several filter plates 137 are equidistantly and fixedly mounted on the outer wall of the transmission rod 134. The filter plates 137 are located on the front of the smoking machine 133 and intercept particulate matter carried in the smoke.

[0039] The rotation of the booster wheel 132 reduces wear between the elliptical plate 10 and the U-shaped telescopic column 131. At the same time, the U-shaped telescopic column 131 ensures that the smoke extraction machine 133 does not obstruct the flipping trajectory of the flipping mechanism 5 and absorbs the smoke generated during welding, preventing smoke from obstructing vision and contaminating the valve. The rotation of the filter plate 137 evenly and effectively removes particulate matter carried in the smoke, preventing particulate matter from corroding the smoke extraction machine 133 for a long time, causing internal blockage and reducing the smoke extraction effect. This further prevents smoke from obstructing the welding vision of the workers or causing them to inhale particulate matter that affects their health.

[0040] In use, when the elliptical plate 10 revolves, it rubs against and abuts the outer wall of the assist wheel 132. The assist wheel 132 rotates inside the telescopic end of the U-shaped telescopic column 131 through friction, and pushes the U-shaped telescopic column 131 to extend away from the drive mechanism 3. The telescopic end of the U-shaped telescopic column 131 drives the smoke extraction machine 133 to move synchronously, so that the smoke extraction machine 133 can still extract the smoke that permeates the welding area when the flipping mechanism 5 flips. When the telescopic end of the U-shaped telescopic column 131 moves horizontally, it drives the transmission rod 134 to move synchronously. The transmission rod 134 drives the collar 135. In synchronous motion, when the collar 135 moves horizontally, it is limited by the pull plate 136, and the pull plate 136 is limited by the fixed end of the U-shaped telescopic column 131. At this time, the hinge shaft of the pull plate 136 begins to rotate. Under the limitation of the pull plate 136, the collar 135 is caused to slide horizontally along the outer wall of the non-self-locking spiral groove of the transmission rod 134. The limitation of the spiral groove causes the transmission rod 134 to start to rotate. When the transmission rod 134 rotates, the filter plate 137 revolves around it. The transmission rod 134 revolves in front of the smoking machine 133 to intercept the particulate matter carried in the smoke.

[0041] The irradiation device 14 includes an L-shaped slide plate 141. The top of the L-shaped slide plate 141 is fixedly installed at the bottom of the smoking machine 133. The bottom of the L-shaped slide plate 141 is slidably installed on the top of the plate 2. A semi-circular block 142 is fixedly installed on the top surface of the L-shaped slide plate 141. Two vertical plates 143 are symmetrically and fixedly installed on the top of the plate 2. A mirror panel 144 is slidably installed on one side of the two vertical plates 143 close to each other by a spring.

[0042] The bottom of the mirror panel 144 is designed with an arc surface. When the flipping mechanism 5 flips the mirror panel 144, it reflects the blind area of ​​the workpiece. The arc surface at the bottom of the mirror panel 144 is located on the movement trajectory of the semi-circular block 142.

[0043] A straight plate 145 is slidably mounted inside the bottom of the L-shaped slide plate 141 through a spring. A cover plate 146 is fixedly mounted inside the straight plate 145. The end of the cover plate 146 near the vertical plate 143 contacts the top of the mirror panel 144. A reset block 147 is fixedly mounted at the bottom of the straight plate 145. The reset block 147 uses its own weight to push the straight plate 145 back to the required height to match the top of the mirror panel 144.

[0044] The mirror panel 144 reflects the bottom of the valve after it has been flipped, allowing staff to directly observe the welding quality in the blind spot of the valve's location when changing the welding position. The flipping mechanism 5 does not need to rotate the valve around once for observation and then adjust it to the required welding position, thus optimizing the welding process. The cover plate 146 prevents the mirror panel 144 from refracting the welding light source during the non-flipping welding stage, avoiding the glare from the refracted light source from affecting the staff's vision and causing welding defects. At the same time, the cover plate 146 reduces the probability of dirt adhering to the mirror panel 144 when it is not in use, ensuring the cleanliness of the mirror surface and avoiding affecting the staff's observation.

[0045] According to the above embodiment, the wear between the elliptical plate 10 and the U-shaped telescopic column 131 is reduced by the rotation of the assist wheel 132. At the same time, the U-shaped telescopic column 131 ensures that the smoke extraction machine 133 will not obstruct the flipping trajectory of the flipping mechanism 5, and absorbs the smoke generated during welding, preventing the smoke from obstructing the view and contaminating the valve. The filter plate 137 rotates evenly and effectively to remove particulate matter carried in the smoke, preventing particulate matter from corroding the smoke extraction machine 133 for a long time, causing internal blockage and reducing the smoke extraction effect. This further prevents the smoke from obstructing the welding view of the workers or causing them to inhale particulate matter that affects their health.

[0046] Please see Figures 1-8 Based on the above embodiments, another embodiment of the present invention further includes an irradiation device 14;

[0047] In use, when the smoking machine 133 moves away from the flipping mechanism 5, the smoking machine 133 drives the L-shaped slide plate 141 to slide synchronously along the top of the plate 2. The L-shaped slide plate 141 drives the semi-circular block 142 to move synchronously. When the semi-circular block 142 moves horizontally, it will abut against the bottom arc surface of the mirror panel 144. With the abutment of the semi-circular block 142, the mirror panel 144 is forced to slide upward along the surface of the vertical plate 143. At this time, when the flipping mechanism 5 flips to be parallel to the plate 2, the mirror panel 144 reflects the valve surface located below the flipping mechanism 5 at a closer distance. The L-shaped slide plate 141 drives the straight plate When the mirror panel 144 is horizontal, the straight plate 145 pulls the cover plate 146 to move synchronously. At this time, the cover plate 146 removes its obstruction of the mirror panel 144, making it easier for staff to observe through the mirror panel 144. Simultaneously, the cover plate 146 generates an upward force under the push of the mirror panel 144. At this time, the cover plate 146 causes the straight plate 145 to slide upward along the inside of the L-shaped slide plate 141. The straight plate 145 drives the reset block 147 to move synchronously. Then, with the help of the spring force and the gravity of the reset block 147, the straight plate 145 is reset. That is, after the mirror panel 144 is reset, the cover plate 146 obstructs its top again.

[0048] According to the above embodiments, the mirror panel 144 reflects the bottom of the valve after it is flipped, which makes it easier for the staff to directly observe the welding quality in the blind spot of the valve position when changing the welding position. The flipping mechanism 5 does not need to rotate the valve once to observe and then adjust it to the required welding position, thus optimizing the welding process. The cover plate 146 prevents the mirror panel 144 from refracting the welding light source during the non-flipping welding stage, thus avoiding the glare of the refracted light source from affecting the staff's vision and causing welding defects. At the same time, the cover plate 146 reduces the probability of dirt adhering to the mirror panel 144 when it is not in use, ensuring the cleanliness of the mirror surface and avoiding affecting the staff's observation.

[0049] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A welding flipping device for valve production, comprising two bases (1), characterized in that: A flat plate (2) is provided between the outer walls of the two bases (1). A drive mechanism (3) is provided on the top of the base (1). A connecting column (4) is fixedly installed at the motor output end inside the drive mechanism (3). A flipping mechanism (5) is fixedly installed on the side of the connecting column (4) away from the drive mechanism (3). An anti-interference device (13) for absorbing smoke is provided on the back of the flipping mechanism (5). An irradiation device (14) for easy observation of the welding effect by the workers is provided around the anti-interference device (13). Both sides inside the flipping mechanism (5) are provided with The sliding mechanism (6) has a top pressure plate (7) slidably installed inside. The bottom edge of the top pressure plate (7) is hinged to a telescopic inclined plate (8) by a torsion spring. The bottom of the telescopic inclined plate (8) is hinged to an arc-shaped block (9). The outer wall of the flipping mechanism (5) is fixedly installed with an elliptical plate (10). The elliptical plate (10) moves through the outer wall of the connecting column (4). The flat plate (2) has a T-shaped plate (11) slidably installed inside by a spring. The groove of the flat plate (2) is hinged to an extension plate (12) by a torsion spring.

2. The welding flipping device for valve production according to claim 1, characterized in that: The flat plate (2) has two symmetrical grooves at the bottom. The drive mechanism (3) has a built-in motor. The flipping mechanism (5) is located above the flat plate (2). The bottom of the top pressure plate (7) is made of elastic material. The telescopic inclined plate (8) is elastically designed. The bottom of the arc block (9) is slidably installed on the bottom of the inner wall of the flipping mechanism (5). The top of the T-shaped plate (11) is in contact with the outer wall of the elliptical plate (10). The extension plate (12) is located on the movement trajectory of the bottom end of the T-shaped plate (11) on the side closer to the flat plate (2).

3. The welding flipping device for valve production according to claim 2, characterized in that: The top pressure plate (7) moves down through the sliding mechanism (6) to limit the top of the valve, the arc block (9) limits the outer wall of the valve through the telescopic inclined plate (8), and the extension plate (12) increases the bearing area of ​​the plate (2) when the flipping mechanism (5) flips.

4. The welding flipping device for valve production according to claim 3, characterized in that: The anti-interference device (13) includes a U-shaped telescopic column (131), which is fixedly installed on the back of the drive mechanism (3) on the side near the flipping mechanism (5). An assist wheel (132) is rotatably installed inside the mounting groove of the telescopic end of the U-shaped telescopic column (131), and a smoking machine (133) is fixedly installed on the back of the telescopic end of the U-shaped telescopic column (131).

5. A welding flipping device for valve production according to claim 4, characterized in that: The telescopic end of the U-shaped telescopic column (131) is designed to be elastic, and the telescopic end of the U-shaped telescopic column (131) is provided with an installation groove. The outer wall of the assist wheel (132) contacts the outer wall of the elliptical plate (10). The assist wheel (132) reduces the wear between the elliptical plate (10) and the U-shaped telescopic column (131) when the elliptical plate (10) revolves. The smoke extraction machine (133) directionally extracts the smoke generated during the welding of the workpiece.

6. A welding flipping device for valve production according to claim 5, characterized in that: A transmission rod (134) is rotatably mounted on the telescopic end of the U-shaped telescopic column (131) near the side of the assist wheel (132). The outer wall of the transmission rod (134) has a non-self-locking spiral groove. A collar (135) is movably mounted through the outer wall of the spiral groove of the transmission rod (134). A pull plate (136) is hinged to the outer wall of the collar (135) by a torsion spring. The end of the pull plate (136) away from the assist wheel (132) is hinged to the outer wall of the fixed end of the U-shaped telescopic column (131) by a torsion spring. Several filter plates (137) are equidistantly and fixedly mounted on the outer wall of the transmission rod (134). The filter plates (137) are located in front of the smoking machine (133) and intercept the particulate matter carried in the smoke.

7. A welding flipping device for valve production according to claim 6, characterized in that: The irradiation device (14) includes an L-shaped slide plate (141), the top of which is fixedly installed at the bottom of the smoking machine (133), the bottom of which is slidably installed at the top of the plate (2), a semi-circular block (142) is fixedly installed on the top surface of the L-shaped slide plate (141), and two vertical plates (143) are symmetrically and fixedly installed on the top of the plate (2), and a mirror panel (144) is slidably installed on one side of the two vertical plates (143) close to each other by a spring.

8. A welding flipping device for valve production according to claim 7, characterized in that: The bottom of the mirror panel (144) is designed with an arc surface. When the flipping mechanism (5) flips the mirror panel (144), it reflects the blind area of ​​the workpiece. The bottom arc surface of the mirror panel (144) is located on the movement trajectory of the semicircular block (142).

9. A welding flipping device for valve production according to claim 8, characterized in that: A straight plate (145) is slidably mounted inside the bottom end of the L-shaped sliding plate (141) through a spring. A cover plate (146) is fixedly mounted inside the straight plate (145). The end of the cover plate (146) near the vertical plate (143) contacts the top of the mirror panel (144). A reset block (147) is fixedly mounted at the bottom of the straight plate (145). The reset block (147) causes the straight plate (145) to reset to the required height to match the top of the mirror panel (144) by its own weight.

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