Robot welding device for environment-friendly gas-insulated switchgear

Abstract

The invention discloses an environment-friendly inflatable cabinet robot welding device which comprises a skid speed reducer used for driving an environment-friendly inflatable cabinet to move and a welding robot used for welding the environment-friendly inflatable cabinet, and an input shaft and a first connecting rod used for being connected with external equipment are arranged on the skid speed reducer. The robot welding device comprises an input shaft and a first connecting rod, a spring coupling is arranged between the input shaft and the first connecting rod, one end of the spring coupling is connected with the input shaft, the other end of the spring coupling is connected with the first connecting rod, and the first connecting rod, the input shaft and the spring coupling are in mutual transmission. And the shafts are stably connected and are not easy to shake during rotation.

Description

Technical Field

[0001] The invention relates to a welding device, in particular to an environmentally friendly inflatable cabinet robot welding device. Background Art

[0002] In the manufacturing process of environmentally friendly inflatable cabinets, welding is a key process. Traditional welding methods often require manual operation, which is not only inefficient, but also the welding quality is easily affected by the workers' skill level and working status. With the development of science and technology, some factories have begun to use robots for welding. Robot welding is more expensive than manual welding, but in order to improve welding efficiency and quality, using robots for welding is a trend. However, in the robot welding device, the transmission connection method between the slide reducer and the external equipment has an important influence on the stability and reliability of the entire device. Traditional slide reducers and external equipment are generally connected through gears, chains, belts and other transmissions. These connection methods may have problems such as large vibration transmission and poor buffering performance, and cannot ensure that the input shaft of the slide reducer and the connection part of the external equipment cannot remain concentric, which is easily affected by eccentricity. The rotation efficiency is easily affected, and shaking is prone to occur during rotation, which can easily lead to a decrease in welding accuracy and even affect the service life of the equipment. Summary of the invention

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an environmentally friendly inflatable cabinet robot welding device to solve the problems mentioned in the above background technology that manual hand-cranking is difficult to control the angle, the operation is inconvenient, the rotation after docking with a positioner is prone to shaking, the stability is poor, and the connecting rod connection position is easily affected by eccentricity, affecting the rotation efficiency.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: it includes a sled reducer for driving the movement of the environmentally friendly inflatable cabinet and a welding robot for welding the environmentally friendly inflatable cabinet, the sled reducer is provided with an input shaft and a first connecting rod for connecting to an external device, a spring coupling is provided between the input shaft and the first connecting rod, one end of the spring coupling is connected to the input shaft, and the other end is connected to the first connecting rod, and the first connecting rod, the input shaft and the spring coupling transmit transmission to each other.

[0005] As a further improvement of the present invention, it includes a positioner, which is provided with a docking mechanism and a servo motor. One end of the docking mechanism is used to connect with the first connecting rod, and the other end is connected with the servo motor. The servo motor drives the docking mechanism to drive the first connecting rod to rotate, and the first connecting rod drives the slide reducer to rotate.

[0006] As a further improvement of the present invention, the docking mechanism includes a second connecting rod for connecting to the servo motor, and the second connecting rod is provided with a rotating tooth at one end corresponding to the first connecting rod, and the rotating tooth is connected to the first connecting rod to drive the first connecting rod to rotate.

[0007] As a further improvement of the present invention, the first connecting rod is provided with a cross bar for engaging with the rotating gear, the cross bar is provided with a plug-in end, and the rotating gear is provided with a slot. When the cross bar is engaged with the rotating gear, the plug-in end is plugged into the slot, and the plug-in end abuts against the slot. A spring and an anti-slip rod are provided between the rotating gear and the servo motor, one end of the anti-slip rod is connected to the servo motor, and the other end passes through the rotating gear and abuts against its inner wall. The spring abuts between the rotating gear and the servo motor, and the anti-slip rod limits the rotating gear axially.

[0008] As a further improvement of the present invention, the positioner is provided with a base, a sliding assembly is provided on the base, and the servo motor is connected to the sliding assembly and cooperates with the sliding assembly to slide linearly on the base toward or away from the first connecting rod.

[0009] As a further improvement of the present invention, the sliding assembly includes a rodless cylinder and an oil-free bushing, the oil-free bushing is slidably connected to the rodless cylinder, and the servo motor moves toward or away from the first connecting rod; and / or, the positioner is provided with a protective cover for covering the outside of the sliding assembly to protect it.

[0010] As a further improvement of the present invention, the spring coupling is a spiral spring coupling.

[0011] As a further improvement of the present invention, the input shaft and the first connecting rod both have abutment surfaces, and the two abutment surfaces are respectively used to abut against two ends of the spiral spring coupling.

[0012] As a further improvement of the present invention, a first key body and a second key body are arranged between the two abutting surfaces, the input shaft is provided with a first key groove for cooperating with the first key body key groove, and the first connecting rod is provided with a second key groove for cooperating with the second key body key groove.

[0013] As a further improvement of the present invention, it also includes a workstation base and a conveying seat for placing a sliding reducer. The welding robot is provided with a visual locator for observing the welding progress. The environmentally friendly inflatable cabinet is connected to the sliding reducer. The conveying seat is slidably connected to the workstation base, and the conveying seat can drive the sliding reducer to slide on the workstation base.

[0014] Compared with the prior art, the present invention provides an environmentally friendly inflatable cabinet robot welding device, which has the following beneficial effects: The present invention adopts a spring coupling between the input shaft and the first connecting rod. When the first connecting rod is connected to an external device or the external device rotates the first connecting rod, vibrations and torsional forces are generated when the external device contacts the first connecting rod, causing eccentricity between the first connecting rod and the input shaft. At this time, the spring coupling will deform and play a shock-absorbing role. At the same time, the spring coupling can allow angular deviation and axial displacement between the two shafts, thereby ensuring power transmission, making the connection more stable and the transmission effect better. When applied to the skid reducer structure of the environmentally friendly inflatable cabinet, it can achieve flexible, stable and buffered transmission between the input shaft and the first connecting rod, improving the overall performance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of the present invention; Figure 2 is a partial perspective view of the positioner in the present invention; Figure 3 is the attached drawing of the specification of the present invention Figure 2 and an enlarged view of the structure of part A in the figure; Figure 4 is a structural diagram of the first connecting rod part of the present invention; Figure 5 is the attached drawing of the specification of the present invention Figure 4 and a sectional view along the A-A section line in the figure; Figure 6 is an enlarged view of the structure of the cross bar of the present invention; Figure 7 is a partial structural sectional view of the butt joint mechanism of the present invention.

[0016] Reference numerals in the drawings: 1, skid reducer; 2, positioner; 3, station base; 4, conveying seat; 5, welding robot; 6, vision locator; 11, input shaft; 12, first connecting rod; 13, spring coupling; 14, abutting surface; 15, first key body; 16, second key body; 17, first key groove; 18, second key groove; 21, butt joint mechanism; 22, servo motor; 23, base; 24, sliding component; 25, spring; 26, anti-disengagement rod; 211, second connecting rod; 212, rotating gear; 121, cross bar; 1211, insertion end; 2121, slot; 241, rodless cylinder; 242, oil-free sleeve; 243, protective cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will further elaborate on the present invention in combination with the embodiments given in the attached drawings.

[0018] Referring to the figure shown, the environmental protection gas-insulated switchgear robot welding device of this embodiment includes a skid reducer 1 for driving the environmental protection gas-insulated switchgear to move and a welding robot 5 for welding the environmental protection gas-insulated switchgear. An input shaft 11 and a first connecting rod 12 for connecting with external equipment are arranged on the skid reducer 1. A spring coupling 13 is arranged between the input shaft 11 and the first connecting rod 12. One end of the spring coupling 13 is connected to the input shaft 11, and the other end is connected to the first connecting rod 12. The first connecting rod 12, the input shaft 11, and the spring coupling 13 are mutually driven.

[0019] When the first embodiment of the present invention is implemented, the skid reducer 1 is a key component in the environmental protection gas-insulated switchgear robot welding device for driving the environmental protection gas-insulated switchgear to move. The spring coupling 13 between the input shaft 11 and the first connecting rod 12 of the skid reducer 1 adopts a tightly fitting connection method. The spring coupling 13 is connected to the input shaft 11 through a high-precision key connection. This key connection can effectively transmit torque when the shafts, namely the input shaft 11 and the first connecting rod 12 in this solution, rotate or move axially, preventing slipping during the transmission process. The other end is firmly fixed to the first connecting rod 12 to ensure the reliability of the connection. When power is input to the first connecting rod 12, the rotation of the first connecting rod 12 is smoothly transmitted to the input shaft 11 through the spring coupling 13. The spring in the spring coupling 13 plays a role in buffering and damping, reducing the damage to the equipment caused by the impact and vibration during the power transmission process, ensuring the stability and accuracy of the transmission. The input shaft 11 then transmits the power to the skid reducer 1, thereby driving the movement of the environmental protection gas-insulated switchgear, enabling the environmental protection gas-insulated switchgear to accurately reach the welding position and providing a stable basis for the welding operation. Applying the spring coupling 13 at one end of the input shaft 11 of the skid reducer 1 of the environmental protection gas-insulated switchgear in this solution can effectively avoid affecting the working efficiency due to the non-concentricity between the shafts. In another embodiment of this solution, those skilled in the art can use a shrink disc to connect the spring coupling 13 and the input shaft 11. The shrink disc is convenient for disassembly and assembly, has a tight connection, and is flexible in transmission. In this solution, the spring coupling 13 can be a helical spring coupling 13, a serpentine spring coupling 13, a torsion spring coupling 13, etc., which can transmit torque and maintain concentricity when the shafts are driven. The mutual drive among the first connecting rod 12, the input shaft 11, and the spring coupling 13 in this solution means that external equipment transmits power or torque to the first connecting rod 12, and then the first connecting rod 12 transmits the power or torque to the input shaft 11 through the spring coupling 13, and finally the input shaft 11 processes and transmits it to the skid reducer 1. The welding robot 5 in this solution is used for welding the environmental protection gas-insulated switchgear.

[0020] As an improved specific embodiment, it includes a positioner 2, on which a docking mechanism 21 and a servo motor 22 are provided. One end of the docking mechanism 21 is used to connect with the first connecting rod 12, and the other end is connected with the servo motor 22. The servo motor 22 drives the docking mechanism 21 to drive the first connecting rod 12 to rotate, and the first connecting rod 12 drives the slide reducer 1 to rotate.

[0021] When the present scheme is implemented, a positioner 2 is provided, on which a servo motor 22 and a docking mechanism 21 are provided. The servo motor 22 transmits power to the first connecting rod 12 connected to the docking mechanism 21 through the docking mechanism 21. The docking mechanism 21 and the first connecting rod 12 are connected by means of plug-in, card-joint or other transmission connection methods and transmit power and torque. The first connecting rod 12 then transmits power and torque to the input end of the sled reducer 1 through the spring coupling 13. Finally, the sled reducer 1 cooperates with other components to drive the environmental protection inflatable cabinet to move and perform welding. The transmission method is simple and the operation is convenient.

[0022] As an improved specific implementation, the docking mechanism 21 includes a second connecting rod 211 for connecting to the servo motor 22. The second connecting rod 211 is provided with a rotating tooth 212 at one end corresponding to the first connecting rod 12. The rotating tooth 212 is connected to the first connecting rod 12 to drive the first connecting rod 12 to rotate.

[0023] When the present solution is implemented, a rotating tooth 212 is provided on the second connecting rod 211, and the rotating tooth 212 is connected to one end of the first connecting rod 12. The connection in the present solution can be a snap connection, a plug-in connection, etc., which can enable the rotating tooth 212 and the first connecting rod 12 to form a limiting connection structure, so that the torque and power are transmitted more smoothly.

[0024] As an improved specific embodiment, the first connecting rod 12 is provided with a cross bar 121 for engaging with the rotating tooth 212, and a plug-in end 1211 is provided on the cross bar 121, and a slot 2121 is provided on the rotating tooth 212. When the cross bar 121 is engaged with the rotating tooth 212, the plug-in end 1211 and the slot 2121 are plugged into and matched with each other, and the plug-in end 1211 and the slot 2121 are abutted against each other. A spring 25 and an anti-slip rod 26 are provided between the rotating tooth 212 and the servo motor 22, one end of the anti-slip rod 26 is connected to the servo motor 22, and the other end passes through the rotating tooth 212 and abuts against its inner wall, the spring 25 abuts between the rotating tooth 212 and the servo motor 22, and the anti-slip rod 26 axially limits the rotating tooth 212.

[0025] In this preferred solution, a cross bar 121 is provided on the first connecting rod 12, and a connection method of meshing the rotating gear 212 with the cross bar 121 is adopted. When the rotating gear 212 rotates, it can drive the cross bar 121 to rotate or move axially, thereby causing the first connecting rod 12 to rotate or move axially. In this solution, a slot 2121 is provided on the rotating gear 212, and a plug-in end 1211 is provided on the cross bar 121. When the two are connected, that is, when the cross bar 121 and the rotating gear 212 in this solution are in place of meshing, the plug-in end 1211 can partially insert into the slot 2121 so that the first connecting rod 12 and the second connecting rod 211 can be tightly connected, avoiding large shaking during operation. Moreover, the plug-in fit between the plug-in end 1211 and the slot 2121 can make the transmission efficiency higher. In other solutions, when those skilled in the art adopt a tight plug-in fit between the slot 2121 and the plug-in end 1211, after the two are connected, the plug-in end 1211 can abut against the opening of the slot 2121 to avoid excessive plugging and damage to the connection part, and it is convenient for disassembly and assembly. This solution also adopts a spring 25 and an anti-disengagement rod 26. The rotating gear 212 is sleeved on one end of the anti-disengagement rod 26. The anti-disengagement rod 26 passes through the rotating gear 212 and a structure abutting against the inner wall of the rotating gear 212 is provided at the end passing through the rotating gear 212. When the spring 25 is not compressed, it can abut between the rotating gear 212 and the servo motor 22. At this time, the spring 25 generates a thrust on the rotating gear 212. And due to the provision of the anti-disengagement rod 26, at this time, the anti-disengagement rod 26 can make the rotating gear 212 avoid being disengaged from the anti-disengagement rod 26 due to the thrust of the spring 25 by abutting against the inner wall of the rotating gear 212. When the rotating gear 212 contacts the cross bar 121, the vibration and pressure generated by the contact between the two can be buffered by the contraction of the spring 25, avoiding damage to components due to excessive impact force.

[0026] As a specific improvement embodiment, the positioner 2 is provided with a base 23, a sliding component 24 is provided on the base 23, and the servo motor 22 is connected to the sliding component 24 and cooperates with the sliding component 24 to linearly slide on the base 23 in the direction of approaching or departing from the first connecting rod 12.

[0027] The positioner 2 of this solution is provided with a base 23, and the base 23 can slide through the sliding component 24. When this solution is implemented, the sliding of the base 23 can drive the positioner 2 and the components on the positioner 2 to move, and the movement path is a linear slide in the direction of approaching or departing from the first connecting rod 12. When the base 23 moves in the direction of approaching the first connecting rod 12, the servo motor 22, the second connecting rod 211, and the rotating gear 212 can all move in the same direction until the rotating gear 212 is connected to the cross bar 121 on the first connecting rod 12, and the plug-in end 1211 can be plugged into the slot 2121 in place. At this time, the base 23 stops sliding. On the contrary, when the first connecting rod 12 and the second connecting rod 211 need to be separated, the base 23 slides in the direction of departing from the first connecting rod 12 until the two are separated and return to the original working position. The sliding method is simple and the operation is convenient.

[0028] As a specific embodiment of the improvement, the sliding assembly 24 includes a rodless cylinder 241 and an oil-free bushing 242. The oil-free bushing 242 is slidably connected to the rodless cylinder 241. The servo motor 22 moves in the direction of approaching or departing from the first connecting rod 12. A protective cover 243 for covering the outside of the sliding assembly 24 is provided on the turntable 2 for protection.

[0029] When implementing this solution, the sliding assembly 24 preferably adopts a rodless cylinder 241 and an oil-free bushing 242. The rodless cylinder 241 and the oil-free bushing 242 cooperate to drive the base 23 to move, thereby driving the servo motor 22 to move. The implementation manner of the cylinder is the prior art well-known to those skilled in the art. Those skilled in the art only need to connect the base 23 to the sliding assembly 24. This solution preferably adopts a protective cover 243 provided on the turntable 2 to protect the sliding assembly 24, improving the service life of the equipment. The cylinder drive method has high efficiency and good stability.

[0030] As a specific embodiment of the improvement, the spring coupling 13 is a spiral spring coupling 13.

[0031] This solution preferably adopts a spiral spring coupling 13. The spiral spring generates elastic deformation under the torsional force, and this process plays a role in buffering and vibration reduction. When there is impact or vibration, the spring can absorb energy to avoid the impact directly acting on the connected shaft. At the same time, it allows a certain angular deviation and axial displacement between the two shafts. Due to the flexibility of the spring in the spiral spring coupling 13, when the two shafts are not concentric or there is relative displacement, it can also continuously and smoothly transmit torque to ensure power transmission. For example, in the structure of the skid reducer 1 of the environmental protection gas-insulated switchgear, by virtue of this working principle, a flexible, stable and buffered transmission between the input shaft 11 and the first connecting rod 12 is achieved, improving the overall performance of the equipment.

[0032] As a specific embodiment of the improvement, both the input shaft 11 and the first connecting rod 12 have abutting surfaces 14. The two abutting surfaces 14 are respectively used to cooperate with the two ends of the spiral spring coupling 13 for abutting. A first key body 15 and a second key body 16 are arranged between the two abutting surfaces. The input shaft is provided with a first keyway 17 for keyway cooperation with the first key body 15, and the first connecting rod 12 is provided with a second keyway 18 for keyway cooperation with the second key body 16.

[0033] When this solution is implemented, an abutting surface 14 is provided between the input shaft 11 and the first connecting rod 12. Those skilled in the art need to place the input shaft 11 and the first connecting rod 12 correspondingly, and then install the spiral spring coupling 13 on the input shaft 11 and the first connecting rod 12. At this time, when vibrations are generated when the first connecting rod 12 is connected to external components or when external components transmit force through the first connecting rod 12, the first key body 15 and the second key body 16 can respectively correspond to the first key groove 17 and the second key groove 18 to form a current fit, avoiding excessive sway between the first connecting rod and the input shaft. This solution uses a spiral spring coupling 13, and its two ends are respectively abutted against the two abutting surfaces 14. When the input shaft and the first connecting rod 12 swing, the input shaft 11 and the first connecting rod 12 may be eccentric. At this time, the spiral spring coupling 13 can overcome this situation through its own torsion, and after the spiral spring coupling 13 is installed, its two ends are abutted against the abutting surface 14, not easily disengaging from the abutting surface 14, and not easily changing the positional relationship between the first connecting rod 12 and the input shaft 11, improving the connection stability.

[0034] As a specific improvement embodiment, it further includes a station base 3 and a conveying seat 4 for placing the skid reducer 1. The welding robot 5 is provided with a vision locator 6 for observing the welding progress. The environmental protection gas-filled cabinet is connected to the skid reducer 1. The conveying seat 4 is slidably connected to the station base 3, and the conveying seat 4 can drive the skid reducer 1 to slide on the station base 3.

[0035] The station base 3 can be welded by high-strength steel or integrally cast to ensure the support strength and stability of the station base 3. The station base 3 can be fixed or liftable. If a liftable station base 3 is used, those skilled in the art need to set up a foot structure with adjustable height. In this solution, preferably, the station base 3 is fixedly placed on the ground, and a conveying seat 4 is provided on the station base 3 to move and adjust the processing position of the skid reducer 1, and a welding robot 5 is provided. If the cost is limited, manual welding can also be used. In this solution, preferably, a welding robot 5 is used to weld the product to be processed corresponding to the processing station, and a vision locator 6 is provided on the welding robot 5. This vision locator 6 can accurately locate the welding position, avoiding errors during welding. The structures at each position can cooperate with each other to realize the welding processing of the environmental protection gas-filled cabinet, which is convenient to operate and does not consume much manpower.

[0036] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as within the protection scope of the present invention.

Claims

1. An environmentally friendly gas-insulated switchgear robot welding device, comprising a skid reducer for driving the environmentally friendly gas-insulated switchgear to move and a welding robot for welding the environmentally friendly gas-insulated switchgear. The skid reducer is provided with an input shaft and a first connecting rod for connecting with external equipment. It is characterized in that, A spring coupling is provided between the input shaft and the first connecting rod. One end of the spring coupling is connected to the input shaft, and the other end is connected to the first connecting rod. The first connecting rod, the input shaft and the spring coupling are mutually transmitted.

2. The environmentally friendly gas-insulated switchgear robot welding device according to claim 1, characterized in that, It includes a positioner, which is provided with a docking mechanism and a servo motor. One end of the docking mechanism is used to connect with the first connecting rod, and the other end is connected with the servo motor. The servo motor drives the docking mechanism to drive the first connecting rod to rotate, and the first connecting rod drives the slide reducer to rotate.

3. The environmentally friendly gas-insulated switchgear robot welding device according to claim 2, characterized in that, The docking mechanism includes a second connecting rod connected to the servo motor, and the second connecting rod is provided with a rotating tooth at one end corresponding to the first connecting rod, and the rotating tooth is connected to the first connecting rod to drive the first connecting rod to rotate.

4. The environmentally friendly gas-insulated switchgear robot welding device according to claim 3, characterized in that, The first connecting rod is provided with a cross bar for engaging with the rotating gear, the cross bar is provided with a plug-in end, and the rotating gear is provided with a slot. When the cross bar is engaged with the rotating gear, the plug-in end is plugged into the slot, and the plug-in end abuts against the slot. A spring and an anti-slip rod are provided between the rotating gear and the servo motor, one end of the anti-slip rod is connected to the servo motor, and the other end passes through the rotating gear and abuts against its inner wall. The spring abuts between the rotating gear and the servo motor, and the anti-slip rod limits the rotating gear axially.

5. The environmentally friendly gas-insulated switchgear robot welding device according to claim 2, characterized in that, The positioner is provided with a base, a sliding assembly is provided on the base, and the servo motor is connected to the sliding assembly and cooperates with the sliding assembly to slide linearly on the base toward or away from the first connecting rod.

6. The environmentally friendly gas-insulated switchgear robot welding device according to claim 5, characterized in that, The sliding assembly includes a rodless cylinder and an oil-free bushing, the oil-free bushing is slidably connected to the rodless cylinder, and the servo motor moves toward or away from the first connecting rod; and / or, the positioner is provided with a protective cover for covering the outside of the sliding assembly to protect it.

7. The environmentally friendly gas-insulated switchgear robot welding device according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that, The spring coupling is a spiral spring coupling.

8. The environmentally friendly gas-insulated switchgear robot welding device according to claim 7, characterized in that, The input shaft and the first connecting rod both have abutment surfaces, and the two abutment surfaces are respectively used to abut against two ends of the spiral spring coupling.

9. The environmentally friendly gas-insulated switchgear robot welding device according to claim 8, characterized in that, A first key body and a second key body are arranged between the two abutting surfaces, the input shaft is provided with a first key groove for cooperating with the key groove of the first key body, and the first connecting rod is provided with a second key groove for cooperating with the key groove of the second key body.

10. The environmentally friendly gas-insulated switchgear robot welding device according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that, It also includes a workstation base and a conveying seat for placing a sliding reducer. The welding robot is provided with a visual locator for observing the welding progress. The environmentally friendly inflatable cabinet is connected to the sliding reducer. The conveying seat is slidably connected to the workstation base, and the conveying seat can drive the sliding reducer to slide on the workstation base.

Images