An inverter end cap automatic welding device

Abstract

The application discloses an automatic welding equipment for an inverter end cover, and relates to the inverter welding technical field.The automatic welding equipment for the inverter end cover can complete the conveying operation of the shell and the end plate body through the cooperation of the conveying belt and the driving chain, until the welding end head is used to realize the welding treatment after the shell and the end plate body reach the inside of the machine body, and the cooperation of the stretchable push plate and the transverse adjusting roller and other components is used to realize the multidirectional position adjustment of the end plate body during the conveying process, so that the welding continuity can be maintained and the welding effect of the end plate body can be improved.

Description

Technical Field

[0001] This invention relates to the field of inverter welding technology, specifically to an automatic welding device for inverter end caps. Background Technology

[0002] The intelligent manufacturing equipment industry continues to upgrade and empower the development of the new energy field. As the core equipment for power conversion, inverters are experiencing steady growth in market demand. Relying on intelligent production lines to achieve automated production, inverters can be precisely processed, shaped, and assembled. During the production of inverters, the sealing plate at the end of the inverter housing needs to be welded. Referring to the Chinese patent, "An Automatic Welding Device for Photovoltaic Inverter Production" with publication number "CN119952393B", this patent points out that currently, when welding inverter housings and mounting plates, most of the time the mounting plates are manually attached to the outside of the inverter housing before welding. This processing method is inefficient and requires manual positioning of the mounting plates. The aforementioned application addresses the assembly of mounting plates by using a clamping structure to reset and swing, which is sufficient for pre-welding processing of plates in specific positions and of specific sizes. It is difficult to adjust the position of the transported plates, which can affect the welding process due to the transport and positional deviation of the housing. To address this issue, we propose an automatic welding device for inverter end caps. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an automatic welding device for inverter end caps, which solves the problems mentioned in the background section.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: an automatic welding equipment for inverter end caps, comprising a machine body, a conveyor belt rotatably connected inside the machine body for conveying the housing, drive shafts rotatably connected on both sides inside the machine body, a drive chain rotatably connected between the two drive shafts, and multiple concave connecting frames mounted on the outer side of the drive chain, with support frames installed at the ends of the multiple concave connecting frames. The support frame is rectangular in shape and has concave adjustment frames on both sides. The end plate body is supported on the top of the concave adjustment frames. A robotic arm is installed in the middle of the inner side of the machine body. The end of the robotic arm is connected to a welding end head for welding the end plate body and the shell. A fixed plate is fixedly installed on the outside of the concave adjustment frame. A telescopic push plate is slidably connected inside the fixed plate. Multiple spring bodies are connected between the telescopic push plate and the fixed plate. Multiple cylindrical magnets are rotatably connected to the side of the telescopic push plate near the end plate body. The concave adjustment frame has multiple transverse adjustment rollers rotatably connected inside, and multiple adjustment screw sleeves are fixedly sleeved at the ends of the transverse adjustment rollers. Both sides of the machine body are provided with transmission side plates and drive motors, which are used to drive the telescopic push plate and the transverse adjustment rollers to achieve multi-directional position adjustment of the placed end plate body.

[0005] Preferably, the transmission side plate is assembled in the middle of the machine body and is slidably connected to it. The side of the transmission side plate is opened into an arc surface so that the telescopic push plate can slide along the arc surface under force when it contacts the transmission side plate. Multiple return springs are fixedly installed between the two ends of the concave connecting frame and the two sides of the support frame. End limit frames are fixedly installed on both sides of the end of the machine body.

[0006] Preferably, the machine body is internally rotatably connected to an adjusting screw, and a connecting rod is assembled between the end of the adjusting screw and the transmission side plate to drive the transmission side plate to slide horizontally inside the machine body.

[0007] Preferably, a drive shaft is rotatably connected to the lower center of the concave adjustment frame, and a drive chain is connected between the drive shaft and the ends of multiple transverse adjustment rollers. The drive chain is triangular in shape, and a drive gear is fixedly sleeved on the output end of the drive motor. When the drive chain moves to contact the drive gear, the drive gear can drive the drive chain and multiple transverse adjustment rollers to rotate.

[0008] Preferably, the multiple transverse adjusting rollers are installed at the same height, and the tops of the multiple adjusting screw sleeves are always flush with the top surface of the concave adjusting frame.

[0009] Preferably, a connector is fixedly installed at the top center of the concave connector, and both ends of the connector are rotatably connected to the drive chain.

[0010] Preferably, the top surface of the support frame has slots on both sides, the concave adjustment frame is slidably connected inside the corresponding slots, and both ends of the concave adjustment frame are provided with locking bolts for locking the concave adjustment frame and the support frame.

[0011] Preferably, slide rods are fixedly installed at both ends of the concave adjustment frame, and the slide rods are slidably connected to the corresponding support frame.

[0012] Preferably, the concave adjusting frame has multiple negative pressure connecting pipes fixedly and slidably installed inside. The negative pressure connecting pipes are right-angled. The side of the negative pressure connecting pipe near the adjusting screw sleeve is flush with its top surface. The side of the negative pressure connecting pipe away from the adjusting screw sleeve passes through the fixed plate and the telescopic push plate and is fixedly connected to the telescopic push plate. The end of the transmission side plate is provided with a through hole that is compatible with the negative pressure connecting pipe.

[0013] Preferably, a conical seal is fixedly installed on the side of the negative pressure connecting pipe near the adjusting screw sleeve.

[0014] This invention provides an automatic welding device for inverter end caps. Compared with the prior art, it has the following advantages: (1) The automatic welding equipment for inverter end caps, through the cooperation of the support frame and the concave adjustment frame, can complete the conveying operation of the housing and end plate body through the cooperation of the conveyor belt and the drive chain, until it reaches the inside of the machine body and then the welding process is carried out through the welding end. During the conveying process, through the cooperation of components such as the telescopic push plate and the transverse adjustment roller, the position of the end plate body can be adjusted in multiple directions, which can maintain the welding continuity while improving the welding effect of the end plate body.

[0015] (2) The automatic welding equipment for the end cap of the inverter, through the cooperation of the transmission side plate and the negative pressure connecting pipe, when the negative pressure connecting pipe moves to the position of the transmission side plate with the telescopic push plate, the negative pressure equipment can perform negative pressure treatment on the negative pressure connecting pipe, and complete the adsorption and positioning of the end plate body through the cooperation of the conical seal, further ensuring the stability of the end plate body during the welding process and improving the welding accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the body of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 For the present invention Figure 2 Side view structural diagram; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point B; Figure 6 This is a schematic diagram of the drive chain, concave connecting frame, and support frame of the present invention; Figure 7 This is a schematic diagram of the concave connecting frame and support frame structure of the present invention; Figure 8 This is a schematic diagram of the concave adjustment frame structure of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point C.

[0017] In the diagram: 1. Machine body; 2. Conveyor belt; 3. Shell; 4. Drive shaft; 401. Drive chain; 5. Concave connecting frame; 501. Connecting part; 502. Return spring; 6. Support frame; 7. Concave adjusting frame; 701. Slide rod; 702. Locking bolt; 8. End plate body; 9. Robotic arm; 10. Welding end; 11. Adjusting screw; 1101. Connecting rod; 12. Transmission side plate; 1201. Arc surface; 13. Fixing plate; 14. Telescopic push plate; 1401. Spring body; 1402. Cylindrical magnet; 15. Transverse adjusting roller; 1501. Adjusting screw sleeve; 1502. Transmission shaft; 16. Transmission chain; 17. Drive motor; 1701. Drive gear; 18. Negative pressure connecting pipe; 1801. Conical seal; 19. End limit frame. Detailed Implementation

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

[0019] Please see Figures 1-9 The present invention provides two technical solutions, specifically including the following embodiments: Example

[0020] In this embodiment of the invention, an automatic welding device for inverter end caps includes a body 1. A conveyor belt 2 is rotatably connected inside the body 1 for conveying a housing 3. The conveyor belt 2 is driven by a separate motor to move the housing 3 within the body 1 for conveying. Drive shafts 4 are rotatably connected to both sides of the body 1. A drive chain 401 is rotatably connected between the two drive shafts 4. Multiple concave connecting frames 5 are mounted on the outer side of the drive chain 401, and support frames 6 are installed at the ends of the multiple concave connecting frames 5. The drive shafts 4 are driven by separate motors to drive the drive chain 401 to run within the body 1, so that the multiple concave connecting frames 5 and the support frames 6 can run with the drive chain 401 within the body 1. In this embodiment of the invention, the support frame 6 is rectangular in shape and is equipped with concave adjustment frames 7 on both sides. The end plate body 8 is supported on the concave adjustment frame 7. The mechanical arm 9 is installed in the middle of the inner side of the machine body 1. The end of the mechanical arm 9 is connected to a welding end head 10 for welding the end plate body 8 and the shell 3. The mechanical arm 9 and the welding end head 10 are existing devices and will not be described in detail here. Specifically, during operation, the housing 3 is transported to the top of the conveyor belt 2 by mechanical gripping or crawler conveyor. At this time, the support frame 6 is located on the outside of the housing 3. Then, by placing the end plate body 8 to be welded on the concave adjustment frame 7 on both sides of the support frame 6, the conveyor belt 2 and the drive chain 401 run simultaneously, which can drive the housing 3, the support frame 6 and the concave adjustment frame 7 to move into the machine body 1 at the same time, so that the end plate body 8 on both sides can move into the machine body 1 at the same time as the concave adjustment frame 7 until the housing 3 and the end plate body 8 move to the center position inside the machine body 1 and stop. Then, the welding end 10 is driven by the robotic arm 9 to complete the welding operation. Specifically, when placing the housing 3, if the housing 3 is transported by the track, the housing 3 should be fed into the machine body 1 near the end limit frame 19. During the feeding process, the drive chain 401 drives the two ends of the concave connecting frame 5 and the support frame 6 to run. This allows the support frame 6, which reaches the end of the machine body 1 and then moves downward, to contact the end limit frames 19 on both sides. This causes the return springs 502 on both sides to be compressed, thereby causing the support frame 6 to cover the outside of the housing 3 and simultaneously transport it into the machine body 1 until the housing 3 is transported above the running conveyor belt 2. At this time, the support frame 6 separates from the end limit frame 19 and moves horizontally into the machine body 1 along with the housing 3, completing the conveying operation of the housing 3. At the same time, when the support frame 6 moves above the end of the conveyor belt 2, the housing 3 can be placed into the support frame 6 by the gripping method of the robotic arm. The above-mentioned gripping method of the robotic arm and the conveying method of the track are existing feeding equipment and will not be described in detail here. Specifically, when conveying the end plate body 8, it can be done by either a robotic arm gripping method or a track conveying method. When using track conveying, after the housing 3 has been conveyed, the end plate body 8 is conveyed to the corresponding housing 3 via the track transport through both sides of the machine body 1 until it is conveyed to the top of the corresponding concave adjustment frame 7.

[0021] In this embodiment of the invention, a fixed plate 13 is fixedly installed on the outside of the concave adjustment frame 7, and a telescopic push plate 14 is slidably connected inside the fixed plate 13. Multiple spring bodies 1401 are connected between the telescopic push plate 14 and the fixed plate 13, and multiple cylindrical magnets 1402 are rotatably connected to the side of the telescopic push plate 14 near the end plate body 8. In this embodiment of the invention, a plurality of transverse adjustment rollers 15 are rotatably connected inside the concave adjustment frame 7, and a plurality of adjustment screw sleeves 1501 are fixedly sleeved at the ends of the transverse adjustment rollers 15. Both sides of the machine body 1 are provided with transmission side plates 12 and drive motors 17, which are used to drive the telescopic push plate 14 and the transverse adjustment rollers 15 to run, so as to realize multi-directional position adjustment of the placed end plate body 8.

[0022] In this embodiment of the invention, the assembly position of the transmission side plate 12 is located in the middle of the body 1 and is slidably connected to it. The side of the transmission side plate 12 is formed into an arc surface 1201, which is used to enable the telescopic push plate 14 to slide along the arc surface 1201 under force when it contacts the transmission side plate 12.

[0023] For details, please refer to Figure 4 , Figure 5 When the end plate body 8 is conveyed above the concave adjusting frame 7, it can be supported by the cooperation of multiple transverse adjusting rollers 15. At this time, as the housing 3 and the end plate body 8 are conveyed into the machine body 1, the telescopic push plate 14 can contact the arc-shaped surface 1201 on the side of the transmission side plate 12 and slide along the arc-shaped surface 1201 under force until the end of the telescopic push plate 14 passes the arc-shaped surface 1201 and contacts the end of the transmission side plate 12 and stops. At this time, the telescopic push plate 14 can slide inside the corresponding fixed plate 13, so that multiple cylindrical magnets 1402 contact the side of the end plate body 8, completing the pushing operation of the end plate body 8. The machine achieves lateral position adjustment. When the concave adjustment frame 7 moves to the middle position of the machine body 1, the transmission chain 16 can contact the drive gear 1701. At this time, the drive motor 17 runs, which can drive the transmission chain 16 to run, and then drive multiple lateral adjustment rollers 15 and adjustment screw sleeves 1501 to rotate, thereby achieving longitudinal position adjustment of the end plate body 8. When the end plate body 8 is longitudinally adjusted, it can simultaneously drive multiple cylindrical magnets 1402 to rotate inside the telescopic push plate 14 to achieve position guidance. Until the position adjustment is completed, the robotic arm 9 drives the welding end head 10 to complete the welding operation.

[0024] In this embodiment of the invention, an adjusting screw 11 is rotatably connected inside the body 1, and a connecting rod 1101 is assembled between the end of the adjusting screw 11 and the transmission side plate 12, which is used to drive the transmission side plate 12 to slide horizontally inside the body 1.

[0025] Specifically, the adjusting screw 11 is used to drive the transmission side plate 12 to slide inside the machine body 1 by manually turning it, and to adjust the extension length of the transmission side plate 12 according to the different specifications of the end plate body 8 and the different welding positions. Specifically, one end of the connecting rod 1101 is rotatably connected to the end of the adjusting screw 11 in a ring shape, and the other end is fixedly connected to the middle position of the transmission side plate 12; In this embodiment of the invention, a drive shaft 1502 is rotatably connected to the lower center of the concave adjustment frame 7. A drive chain 16 is connected between the drive shaft 1502 and the ends of the plurality of transverse adjustment rollers 15. The drive chain 16 is triangular in shape. A drive gear 1701 is fixedly sleeved on the output end of the drive motor 17. When the drive chain 16 moves to contact the drive gear 1701, the drive gear 1701 can drive the drive chain 16 and the plurality of transverse adjustment rollers 15 to rotate.

[0026] Specifically, the drive motor 17 is an existing forward and reverse motor, which can drive the drive gear 1701 at the end to rotate in the forward or reverse direction. In turn, through the cooperation of the transmission chain 16, it can drive multiple transverse adjusting rollers 15 and multiple adjusting screw sleeves 1501 to rotate in the forward or reverse direction, thereby realizing the position adjustment of the end plate body 8. In this embodiment of the invention, the installation height of the multiple transverse adjusting rollers 15 is the same, and the top of the multiple adjusting screw sleeves 1501 is always flush with the top surface of the concave adjusting frame 7.

[0027] In this embodiment of the invention, a connector 501 is fixedly installed at the top center of the concave connector 5, and both ends of the connector 501 are rotatably connected to the drive chain 401. Specifically, the two ends of the connector 501 are cylindrical and are rotatably connected to the drive chain 401. The concave connector 5 can run along the drive chain 401 at the same time as the drive chain 401 rotates. The interior of the connector 501 is arc-shaped to avoid motion interference when the concave connector 5 runs to the end of the drive chain 401.

[0028] In this embodiment of the invention, slots are provided on both sides of the top surface of the support frame 6, and the concave adjustment frame 7 is slidably connected inside the corresponding slot. Locking bolts 702 are provided at both ends of the concave adjustment frame 7 to lock the concave adjustment frame 7 and the support frame 6.

[0029] Specifically, the slot is not shown in the figure. The height of the concave adjustment bracket 7 is adjustable, which enables the equipment to be used for welding operations on housings 3 of different heights. Specifically, in this embodiment of the invention, slide rods 701 are fixedly installed at both ends of the side of the concave adjustment frame 7, and the slide rods 701 are slidably connected to the corresponding support frame 6; Specifically, the body 1 is equipped with a position monitoring module, which is used to monitor and transmit the position information of the shell 3 and the end plate body 8, which will not be elaborated here.

[0030] Example 2: Based on Example 1, multiple negative pressure connecting pipes 18 are fixedly and slidably installed inside the concave adjustment frame 7. The negative pressure connecting pipes 18 are right-angled. The side of the negative pressure connecting pipe 18 near the adjustment screw sleeve 1501 is flush with its top surface. The side of the negative pressure connecting pipe 18 away from the adjustment screw sleeve 1501 passes through the fixed plate 13 and the telescopic push plate 14 and is fixedly connected to the telescopic push plate 14. The end of the transmission side plate 12 is provided with a through hole that is compatible with the negative pressure connecting pipe 18.

[0031] In this embodiment of the invention, a conical sealing element 1801 is fixedly installed on the side of the negative pressure connecting pipe 18 near the adjusting screw sleeve 1501; Specifically, the transmission side plate 12 is externally connected to a negative pressure device, which is an existing device and is not shown in the figure. When the telescopic push plate 14 moves to the position of the transmission side plate 12, the multiple negative pressure connecting pipes 18 on both sides inside can fit and maintain communication with the corresponding through holes. At this time, by operating the negative pressure device, negative pressure can be drawn from the negative pressure connecting pipes 18. The end of the negative pressure connecting pipe 18 located at the bottom of the end plate body 8 can be adsorbed and positioned by the conical seal 1801 until the welding is completed and the negative pressure device stops. It can work with the cylindrical magnet 1402 to further complete the auxiliary positioning of the end plate body 8 and ensure the welding accuracy.

[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0033] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. An automatic welding device for inverter end caps, comprising a body (1), wherein a conveyor belt (2) is rotatably connected inside the body (1) for conveying the housing (3), characterized in that: The machine body (1) has drive shafts (4) rotatably connected to both sides inside. A drive chain (401) is rotatably connected between the two drive shafts (4). Multiple concave connecting frames (5) are mounted on the outside of the drive chain (401), and support frames (6) are installed at the ends of the multiple concave connecting frames (5). The support frame (6) is rectangular in shape and is equipped with concave adjustment frames (7) on both sides. The concave adjustment frames (7) support the end plate body (8) above. The inner middle of the body (1) is equipped with a mechanical arm (9). The end of the mechanical arm (9) is connected to a welding end (10) for welding the end plate body (8) and the shell (3). A fixed plate (13) is fixedly installed on the outside of the concave adjustment frame (7). A telescopic push plate (14) is slidably connected inside the fixed plate (13). Multiple spring bodies (1401) are connected between the telescopic push plate (14) and the fixed plate (13). Multiple cylindrical magnets (1402) are rotatably connected to the side of the telescopic push plate (14) near the end plate body (8). The concave adjustment frame (7) is rotatably connected with multiple transverse adjustment rollers (15), and the ends of the transverse adjustment rollers (15) are fixedly sleeved with multiple adjustment screw sleeves (1501). The machine body (1) is provided with transmission side plates (12) and drive motors (17) on both sides, which are used to drive the telescopic push plate (14) and the transverse adjustment rollers (15) to run, so as to realize multi-directional position adjustment of the placed end plate body (8).

2. The automatic welding equipment for inverter end caps according to claim 1, characterized in that: The assembly position of the transmission side plate (12) is located in the middle of the body (1) and is slidably connected to it. The side of the transmission side plate (12) is opened into an arc surface (1201) so that when the telescopic push plate (14) contacts the transmission side plate (12), it can slide along the arc surface (1201) under force. Multiple return springs (502) are fixedly installed between the two ends of the concave connecting frame (5) and the two sides of the support frame (6). End limit frames (19) are fixedly installed on both sides of the end of the body (1).

3. The automatic welding equipment for inverter end caps according to claim 2, characterized in that: An adjusting screw (11) is rotatably connected inside the body (1). A connecting rod (1101) is assembled between the end of the adjusting screw (11) and the transmission side plate (12) to drive the transmission side plate (12) to slide horizontally inside the body (1).

4. The automatic welding equipment for inverter end caps according to claim 1, characterized in that: A drive shaft (1502) is rotatably connected to the lower middle part of the concave adjustment frame (7). A drive chain (16) is connected between the drive shaft (1502) and the ends of multiple transverse adjustment rollers (15). The drive chain (16) is triangular in shape. A drive gear (1701) is fixedly sleeved on the output end of the drive motor (17). When the drive chain (16) moves to contact the drive gear (1701), the drive gear (1701) can drive the drive chain (16) and multiple transverse adjustment rollers (15) to rotate.

5. The automatic welding equipment for inverter end caps according to claim 4, characterized in that: The multiple transverse adjusting rollers (15) are installed at the same height, and the top of the multiple adjusting screw sleeves (1501) is always flush with the top surface of the concave adjusting frame (7).

6. The automatic welding equipment for inverter end caps according to claim 1, characterized in that: A connector (501) is fixedly installed at the top center of the concave connector (5), and both ends of the connector (501) are rotatably connected to the drive chain (401).

7. The automatic welding equipment for inverter end caps according to claim 1, characterized in that: The support frame (6) has slots on both sides of its top surface. The concave adjustment frame (7) is slidably connected inside the corresponding slot. Both ends of the concave adjustment frame (7) are provided with locking bolts (702) for locking the concave adjustment frame (7) and the support frame (6).

8. An automatic welding device for inverter end caps according to claim 7, characterized in that: The concave adjustment frame (7) has slide rods (701) fixedly installed at both ends of its side, and the slide rods (701) are slidably connected to the corresponding support frame (6).

9. An automatic welding device for inverter end caps according to claim 1, characterized in that: The concave adjustment frame (7) has multiple negative pressure connecting pipes (18) fixedly and slidably installed inside. The negative pressure connecting pipes (18) are right-angled. The side of the negative pressure connecting pipe (18) close to the adjustment screw sleeve (1501) is flush with its top surface. The side of the negative pressure connecting pipe (18) away from the adjustment screw sleeve (1501) passes through the fixed plate (13) and the telescopic push plate (14) and is fixedly connected to the telescopic push plate (14). The end of the transmission side plate (12) is provided with a through hole that is compatible with the negative pressure connecting pipe (18).

10. An automatic welding device for inverter end caps according to claim 9, characterized in that: A conical seal (1801) is fixedly installed on the side of the negative pressure connecting pipe (18) near the adjusting screw sleeve (1501).

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