Welding displacement device for air chamber of switch cabinet

Abstract

The invention relates to the technical field of metal processing, in particular to a switch cabinet air chamber welding displacement device which comprises a welding displacement machine base, a displacement motor, a worm, a worm gear ring and a welding device. A hydraulic clamping device; and a fixed control telescopic device. A displacement motor drives a worm to drive a worm gear ring to drive three sets of welding devices to displace, then the effect of automatic displacement welding of the three welding heads is achieved, a fixed control telescopic device regulates and controls the welding device at the vertical position of the top of the positioning platform, the welding heads on the welding device are controlled to move towards the switch cabinet, and the welding heads on the welding device are controlled to move towards the switch cabinet. The corresponding welding heads are aligned and welded to the air chamber of the switch cabinet, the other two sets of welding devices control the corresponding welding heads to be contracted to the top of the welding positioner base, the effect that the welding heads in welding work are not interfered is achieved, and therefore the effect that multi-station automatic displacement welding is conducted on the switch cabinet is achieved. The operation time of a traditional switch cabinet during welding is shortened, and the welding efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of metal processing, and specifically to a welding position-changing device for a switchgear gas chamber. Background Technique

[0002] The welding of switchgears is an important step in the manufacturing process of electrical equipment. By welding metal components together, the reliability of the electrical equipment connected in the switchgear and the structural stability are ensured. The welding quality directly affects the safe operation, durability, and overall performance of the switchgear. Welding is divided into three categories, including pressure welding, fusion welding, and special welding. Pressure welding only requires applying pressure to the connection part to combine two workpieces into one, such as cold welding, hot pressure welding, etc. Fusion welding uses high temperature to melt the surface of the workpiece into a liquid, and a connection is formed after the melts cool, such as arc welding, TIG argon arc welding, etc. Special welding is a welding method based on special phenomena and physical properties, such as laser welding, plasma welding, etc.

[0003] During the welding of the switchgear gas chamber, since different welding requires replacing different welding heads, the existing treatment method is to transfer the switchgear and set up different welding platforms to perform different types of welding on the switchgear, resulting in poor overall welding efficiency. Moreover, since the welding machine needs to perform position-changing welding inside the gas chamber of the switchgear, it generally uses a robotic arm or a two-axis linear motor platform to perform position-changing welding on the welding head, which leads to a large occupied area of the overall welding machine base. When using a combination of three groups of welding machine bases to weld the switchgear gas chamber, it is necessary to consider the problem of movement interference of each welding head. In view of this, we propose a welding position-changing device for a switchgear gas chamber. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a welding position-changing device for a switchgear gas chamber, which solves the problems raised in the above background technique. To achieve the above objectives, the present invention is realized through the following technical solutions: A welding position-changing device for a switchgear gas chamber, including a welding position-changing machine base, on one side of the welding position-changing machine base, a position-changing motor is installed. The output shaft of the position-changing motor is fixedly connected with a worm, and a worm gear ring is meshed on the surface of the worm. Three welding devices are fan-shaped arrayed on the worm gear ring, and three different welding heads are arranged on the three welding devices; a hydraulic clamping device, the hydraulic clamping device is arranged on the welding position-changing machine base; a fixed-control telescopic device, the fixed-control telescopic device is arranged on the welding position-changing machine base and is used to drive the welding device to control the welding head to perform telescopic movement; a positioning platform, the positioning platform is arranged on the welding position-changing machine base, and auxiliary rollers are movably connected on the positioning platform.

[0005] Preferably, the worm gear ring is set as a hollow ring type, and the end of the worm gear ring is rotatably connected to the welding position-changing machine base.

[0006] Preferably, the welding device includes a connecting rod, which is fixedly connected to the worm gear ring. A limiting top seat is fixedly connected to the connecting rod. A bidirectional threaded rod is rotatably connected inside the limiting top seat. Two symmetrical screw seats are threadedly connected to the bidirectional threaded rod. A telescopic connecting rod is rotatably connected to the screw seat. The two ends of the telescopic connecting rod are respectively slidably connected to a limiting rod through a sliding seat. A connecting seat is fixedly connected to the limiting rod. A double-shaft linear motor is fixedly connected to the connecting seat.

[0007] Preferably, the screw seat is slidably connected to the inner wall of the limiting top seat, and the output shaft of the double-shaft linear motor is fixedly connected to the welding head.

[0008] Preferably, the welding device further includes a cam clamping seat, which is slidably connected to the connecting rod. A clamping sleeve is rotatably connected inside the cam clamping seat. A meshing gear is fixedly connected to the clamping sleeve. A clamping shaft is slidably connected inside the clamping sleeve.

[0009] Preferably, a spring is fixedly connected between the surface of the cam clamping seat and the surface of the limiting top seat. The end of the clamping shaft penetrates through one side of the limiting top seat and is fixedly connected to the end of the bidirectional threaded rod.

[0010] Preferably, a cam ejector rod is fixedly connected to the welding positioner base, and the cam ejector rod is used to squeeze the cam clamping seat to achieve position change.

[0011] Preferably, the fixed control telescopic device includes a control motor, which is installed inside the welding positioner base. The output shaft of the control motor is fixedly connected to a driving gear. A transmission gear ring is engaged with the surface of the driving gear. A fixed ring seat is rotatably connected to one side of the transmission gear ring. The inner ring wall of the transmission gear ring is fixedly connected to a guiding ring seat, and the fixed ring seat is fixedly connected inside the welding positioner base.

[0012] Preferably, the hydraulic clamping device includes a hydraulic base, which is fixed inside the welding positioner base. A sliding rod is slidably connected to the top of the hydraulic base. One end of the sliding rod is fixedly connected to a sliding shaft rod, and the other end of the sliding rod is fixedly connected to a hydraulic plate. Flow pipes are fixedly connected to both sides of the hydraulic base. A hydraulic pipe is fixedly connected to the end of the flow pipe. A piston rod is piston-connected inside the hydraulic pipe, and a clamping plate is fixedly connected to the end of the piston rod.

[0013] Preferably, the hydraulic plate is piston-connected inside the hydraulic base. A spring is fixedly connected between the surface of the sliding shaft rod and the surface of the hydraulic base. The end of the sliding shaft rod is slidably connected to the inner wall of the guiding ring seat. The inside of the hydraulic base is communicated with the inside of the hydraulic pipe through the flow pipe.

[0014] As can be seen from the above technical solutions, a welding position-changing device for a switch cabinet air chamber provided by the embodiments of this specification has at least the following beneficial effects:

[0015] 1. By setting three different welding heads, the present invention realizes three different welding operations on the inside of the switch cabinet air chamber. The welding heads are centrally positioned in the top area of the welding position-changing machine base in a fan-shaped array distribution, reducing the occupied area. The position-changing motor drives the worm to drive the worm gear ring to drive the three groups of welding devices to change positions, and then realizes the effect of automatic position-changing welding of the three welding heads. The fixed-control telescopic device controls the welding device at the vertical position on the top of the positioning platform, and controls the welding head on the welding device to move towards the switch cabinet, so that the corresponding welding head aligns and welds the switch cabinet air chamber. The remaining two groups of welding devices control the corresponding welding heads to contract on the top of the welding position-changing machine base, achieving the effect of not interfering with the welding heads during the welding operation, thereby achieving the effect of multi-station automatic position-changing welding of the switch cabinet, reducing the operation time during the traditional switch cabinet welding, and improving the welding efficiency.

[0016] 2. The present invention drives two symmetrical screw seats to move closer by a bidirectional threaded rod, and the telescopic connecting rod extends. The telescopic connecting rod transmits the force to the connecting seat on the limit rod through the sliding seat, and the connecting seat drives the welding head to move towards the switch cabinet through the double-axis linear motor, achieving the effect of automatic alignment. The welding head with corresponding welding requirements is moved over a long distance for alignment welding. Combining the method of the remaining two welding heads contracting on the top of the welding position-changing machine base, while reducing the occupied area of the three welding heads, the effect of not interfering with the welding heads during the welding operation is achieved.

[0017] 3. The present invention realizes the extrusion and position change of the cam chuck through the cam ejector rod, so that the meshing gear on the cam chuck aligns with the transmission gear ring to maintain the transmission effect. At the same time, since the cam chucks at the other two places are in a state of being away from the limit top seat, the corresponding meshing gears on them are in a misaligned state with the transmission gear ring. On the one hand, the effect of not operating the two welding heads is achieved, and on the other hand, when the three welding heads rotate and change positions, the corresponding telescopic connecting rods do not perform ineffective movements.

[0018] 4. In the present invention, the motor is controlled to drive the driving gear to engage and transmit the ring gear. At the initial stage of rotation of the ring gear, the combined groove in the guide ring seat is used to extrude the sliding shaft rod to move. The sliding shaft rod is forced to extrude the spring on its surface, and the hydraulic plate is driven by the sliding rod to extrude the liquid in the hydraulic base. After being forced to extrude, the liquid uniformly flows out to the flow-through pipes on both sides. The flow-through pipes drive the clamping plates on the hydraulic drive hydraulic pipe to move. During the mutual approaching movement of the two symmetrical clamping plates, the effect of clamping and positioning the switch cabinet on the positioning platform is achieved. The power of controlling the welding head to be aligned with the switch cabinet for close welding is used to drive the two clamping plates to clamp the switch cabinet, achieving the effect of automatic clamping and positioning. At the same time, the utilization of power can reduce the setting of driving parts, and to a certain extent, reduce the equipment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and form a part of this application:

[0020] Figure 1 Schematic diagram of the overall structure of the present invention;

[0021] Figure 2 Schematic diagram of the structure of the welding device in the present invention;

[0022] Figure 3 Schematic diagram of the internal structure of the limit top seat in the present invention;

[0023] Figure 4 Schematic diagram of the structure at the cam clamping seat in the present invention;

[0024] Figure 5 Schematic diagram of the structure at the connecting rod in the present invention;

[0025] Figure 6 Schematic diagram of the structure of the fixed control telescopic device in the present invention;

[0026] Figure 7 Schematic diagram of the structure at the guide ring seat in the present invention;

[0027] Figure 8 Schematic diagram of the structure of the hydraulic clamping device in the present invention;

[0028] Figure 9 Schematic diagram of the structure at the plug rod in the present invention;

[0029] Figure 10 Schematic diagram of the structure of the welding positioner base in the present invention.

[0030] In the figure: 1, welding positioner base; 2, position-changing motor; 3, worm; 4, worm gear ring; 5, welding device; 51, connecting rod; 52, limit top seat; 53, bidirectional threaded rod; 54, screw seat; 55, telescopic connecting rod; 56, sliding seat; 57, limit rod; 58, connecting seat; 59, double-axis linear motor; 510, cam clamping seat; 511, ferrule; 512, meshing gear; 513, clamping shaft; 514, cam ejector rod; 6, welding head; 7, hydraulic clamping device; 71, hydraulic base; 72, sliding rod; 73, sliding shaft rod; 74, hydraulic plate; 75, flow pipe; 76, hydraulic pipe; 77, plug rod; 78, clamping plate; 8, fixed-control telescopic device; 81, control motor; 82, driving gear; 83, transmission gear ring; 84, fixed ring seat; 85, guiding ring seat; 9, positioning platform; 10, auxiliary roller. Specific embodiments

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figure 1 - Figure 10As shown in the figure, a welding position-changing device for a switchgear air chamber includes a welding position-changing machine base 1. On one side of the welding position-changing machine base 1, a position-changing motor 2 is fixedly installed. The output shaft of the position-changing motor 2 is fixedly connected to a worm 3. A worm gear ring 4 is meshed on the surface of the worm 3. Three welding devices 5 are distributed in a fan-shaped array on the worm gear ring 4. The structures inside the three welding devices 5 are the same, and three different welding heads 6 are arranged on the three welding devices 5. The three different welding heads 6 are used to perform three different welding operations on the switchgear air chamber. They are centrally positioned in the top area of the welding position-changing machine base 1 in a fan-shaped array distribution, reducing the occupied area. The position-changing motor 2 drives the worm 3 to drive the worm gear ring 4 to drive the three welding devices 5 to change positions, thereby achieving the effect of automatic position-changing welding of the three welding heads 6; a hydraulic clamping device 7 is arranged on the welding position-changing machine base 1 and is used to position and clamp both sides of the switchgear during welding to improve the stability of welding; a fixed-control telescopic device 8 is arranged on the welding position-changing machine base 1 and is used to drive the welding device 5 to control the welding head 6 to expand and contract; a positioning platform 9 is arranged on the welding position-changing machine base 1. An auxiliary roller 10 is movably connected to the positioning platform 9. The switchgear to be welded is placed flat on the positioning platform 9. The auxiliary roller 10 facilitates the position adjustment of the switchgear on the positioning platform 9. The air chamber cavity of the switchgear to be welded is placed upward. The fixed-control telescopic device 8 controls the welding device 5 at the vertical position above the positioning platform 9, and controls the welding head 6 on the welding device 5 to move towards the switchgear, so that the corresponding welding head 6 aligns and welds the switchgear air chamber. The remaining two welding devices 5 control the corresponding welding heads 6 to contract on the top of the welding position-changing machine base 1, achieving the effect of not interfering with the welding head 6 during the welding operation, thereby achieving the effect of multi-station automatic position-changing welding of the switchgear, reducing the operation time during the traditional switchgear welding, improving the welding efficiency. The worm gear ring 4 is set as a hollow ring type, and the end of the worm gear ring 4 is rotatably connected to the welding position-changing machine base 1. The connection method between the worm gear ring 4 and the worm 3 achieves self-locking while ensuring the transmission effect, improving the overall stability of the welding head 6.

[0033] In this embodiment, the welding device 5 includes a connecting rod 51, which is fixedly connected to the worm gear ring 4. A limiting top seat 52 is fixedly connected to the surface of the connecting rod 51. A bidirectional threaded rod 53 is rotatably connected inside the limiting top seat 52. Two symmetrical screw seats 54 are threadedly connected to the bidirectional threaded rod 53, and the screw seats 54 are slidably connected to the inner wall of the limiting top seat 52. When the bidirectional threaded rod 53 rotates, the two screw seats 54 move relatively, that is, move closer to each other or move away from each other. A telescopic connecting rod 55 is rotatably connected to the screw seat 54. The telescopic connecting rod 55 is composed of a plurality of cross connecting rods and shafts. The two ends of the first cross connecting rod in the telescopic connecting rod 55 are rotatably connected to the inside of the screw seat 54 through shafts. The two ends of the last cross connecting rod in the telescopic connecting rod 55 are respectively slidably connected to a limiting rod 57 through two symmetrical sliding seats 56. A connecting seat 58 is fixedly connected to the limiting rod 57. A double-axis linear motor 59 is fixedly connected to the connecting seat 58. The output shaft of the double-axis linear motor 59 is fixedly connected to the welding head 6. The double-axis linear motor 59 is composed of two perpendicular linear motors and is used to drive the welding head 6 to move in the x-axis and y-axis directions. When the bidirectional threaded rod 53 rotates to drive the two symmetrical screw seats 54 to move closer, the telescopic connecting rod 55 extends. The telescopic connecting rod 55 transmits the force to the connecting seat 58 on the limiting rod 57 through the sliding seat 56. The connecting seat 58 drives the welding head 6 to move towards the switch cabinet through the double-axis linear motor 59, achieving the effect of automatic alignment. The welding head 6 required for corresponding welding is moved a long distance for alignment welding. Combined with the way that the remaining two welding heads 6 are retracted on the top of the welding positioner base 1, while reducing the occupied area of the three welding heads 6, the effect of not interfering with the welding head 6 during the welding work is achieved.

[0034] Furthermore, the welding device 5 further includes a cam clamping seat 510. The cam clamping seat 510 is slidably connected to the connecting rod 51 through the chutes opened on both sides. A clamping sleeve 511 is rotatably connected inside the cam clamping seat 510. A meshing gear 512 is fixedly connected to the surface of the clamping sleeve 511. A clamping shaft 513 is slidably connected inside the clamping sleeve 511. A spring is fixedly connected between the surface of the cam clamping seat 510 and the surface of the limiting top seat 52. The end of the clamping shaft 513 penetrates through one side of the limiting top seat 52 and is fixedly connected to the end of the bidirectional threaded rod 53. The spring is used to limit the position of the cam clamping seat 510. The cam clamping seat 510 located directly above the positioning platform 9 is in a standby working state, and the spring at this cam clamping seat 510 is in a contracted state, and the cam clamping seat 510 is close to the limiting top seat 52. The remaining two cam clamping seats 510 are in a non-working state and are far from the limiting top seat 52.

[0035] Even further, a cam ejector rod 514 is fixedly connected to the welding positioner base 1 (as Figure 10As shown, the cam ejector rod 514 is used to extrude the cam socket 510 to achieve displacement. When the displacement motor 2 drives the worm 3 to drive the worm gear ring 4 to drive the three groups of welding devices 5 to displace, the entire cam socket 510 at the corresponding position rotates synchronously with the corresponding connecting rod 51. During the rotation, when it gradually contacts the cam ejector rod 514, the cam socket 510 contacts and extrudes the cam ejector rod 514 through the protruding arc surface at the top, and the whole cam socket 510 makes a passive yielding movement, so as to realize that the cam socket 510 at the cam ejector rod 514 approaches the limit top seat 52, achieving the effect of switching between the non-working state and the to-be-working state.

[0036] In addition, the fixed control telescopic device 8 includes a control motor 81 installed inside the welding displacement machine base 1. The output shaft of the control motor 81 is fixedly connected with a driving gear 82. The surface of the driving gear 82 is engaged with a transmission gear ring 83. One side of the transmission gear ring 83 is rotatably connected with a fixed ring seat 84. The inner ring wall of the transmission gear ring 83 is fixedly connected with a guiding ring seat 85. The fixed ring seat 84 is fixedly connected inside the welding displacement machine base 1. When the cam socket 510 at the cam ejector rod 514 approaches the limit top seat 52, at this time, the meshing gear 512 on the cam socket 510 and the transmission gear ring 83 are on the same horizontal plane. At this time, by starting the control motor 81, the output shaft of the control motor 81 drives the transmission gear ring 83 to rotate through the meshing of the driving gear 82. During the rotation, the transmission gear ring 83 drives the meshing gear 512 at the cam ejector rod 514 to rotate. The meshing gear 512 transmits the rotational force to the bidirectional threaded rod 53 through the clamping sleeve 511 and the clamping shaft 513, and then realizes the effect of regulating the telescopic connecting rod 55 at this place to eject the welding head 6, achieving the effect of automatically aligning and closely welding inside the gas chamber of the switch cabinet. At the same time, since the cam sockets 510 at the other two places are in a state of being far away from the limit top seat 52, the corresponding meshing gears 512 on them and the transmission gear ring 83 are in a misaligned state, so the other two welding heads 6 do not work. On the one hand, it realizes the effect that the two welding heads 6 do not work. On the other hand, it achieves the effect that when the three welding heads 6 rotate and displace, the corresponding telescopic connecting rods 55 at their positions do not make ineffective movements.

[0037] In addition, the hydraulic clamping device 7 includes a hydraulic base 71 which is fixed inside the welding positioner base 1. The inside of the hydraulic base 71 is filled with liquid. A sliding rod 72 is slidably connected to the top of the hydraulic base 71. One end of the sliding rod 72 is fixedly connected to a sliding shaft rod 73. A spring is fixedly connected between the surface of the sliding shaft rod 73 and the surface of the hydraulic base 71. The other end of the sliding rod 72 is fixedly connected to a hydraulic plate 74. The hydraulic plate 74 is piston-connected inside the hydraulic base 71. The end of the sliding shaft rod 73 is slidably connected to the inner wall of the guide ring seat 85. When the output shaft of the control motor 81 rotates through the meshing transmission of the driving gear 82 and the gear ring 83 (the rotation of the gear ring 83 does not exceed one circle), a combined groove is formed inside the guide ring seat 85. This combined groove is composed of an arc groove and a triangular convex groove (as Figure 7 shown). In the initial state, the sliding shaft rod 73 is located in the triangular convex groove. When the guide ring seat 85 rotates, it will squeeze the sliding shaft rod 73 downward through the inner wall of the triangular convex groove. During the initial rotation of the gear ring 83, it squeezes the sliding shaft rod 73 to move through the combined groove inside the guide ring seat 85. The sliding shaft rod 73 is forced to squeeze the spring on its surface and drives the hydraulic plate 74 to squeeze the liquid inside the hydraulic base 71 through the sliding rod 72. The rotation angle of the gear ring 83 is less than the angle distribution of the arc groove. After forward rotation, it can be reset and reversed by controlling the motor 81. Both sides of the hydraulic base 71 are fixedly connected with circulation pipes 75. The ends of the circulation pipes 75 are fixedly connected with hydraulic pipes 76. A piston rod 77 is piston-connected inside the hydraulic pipe 76. The end of the piston rod 77 is fixedly connected with a clamping plate 78. The inside of the hydraulic base 71 is communicated with the inside of the hydraulic pipe 76 through the circulation pipe 75. After being forced to squeeze, the liquid evenly flows out to both sides of the circulation pipes 75. The circulation pipes 75 drive the clamping plates 78 on the hydraulic pipes 76 to move through this hydraulic pressure. During the mutual approach movement of the two symmetric clamping plates 78, the effect of clamping and positioning the switch cabinet on the positioning platform 9 is achieved. The power of using the control welding head 6 to approach and weld the switch cabinet drives the two clamping plates 78 to clamp the switch cabinet, achieving the effect of automatic clamping and positioning. At the same time, the utilization of power can reduce the setting of driving parts, reduce the equipment cost to a certain extent, and further achieve the effect of stably clamping the switch cabinet during the welding work.

[0038] When the welding position-changing device for the switch cabinet air chamber of the present invention is in use, the switch cabinet to be welded is placed on the positioning platform 9. According to the welding requirements, the corresponding welding head 6 is selected to work. By starting the position-changing motor 2, the position-changing motor 2 drives the worm 3 to drive the three welding devices 5 on the worm gear ring 4 to change positions. Select the corresponding welding device 5 to be directly above the positioning platform 9. During the rotation of the worm gear ring 4, the entire cam clamping seat 510 at the corresponding position rotates synchronously with the connecting rod 51 at the corresponding position. When gradually contacting the cam ejector rod 514 during the rotation, the cam clamping seat 510 contacts and squeezes the protruding arc surface at the top of the cam ejector rod 514 through the protruding arc surface at the top. The entire cam clamping seat 510 performs a passive yielding movement, so as to realize the effect that the cam clamping seat 510 at the cam ejector rod 514 approaches the limit top seat 52, achieving the effect of switching between the non-working state and the to-be-working state. At this time, the meshing gear 512 on the cam clamping seat 510 and the transmission gear ring 83 are on the same horizontal plane. At this time, by starting the control motor 81, the output shaft of the control motor 81 drives the transmission gear ring 83 to rotate through the driving gear 82. The transmission gear ring 83 drives the meshing gear 512 at the cam ejector rod 514 to rotate during the rotation. The meshing gear 512 at this position transmits the rotational force to the bidirectional threaded rod 53 at this position through the bushing 511 via the card shaft 513. The bidirectional threaded rod 53 rotates to drive the two symmetrical screw seats 54 to move closer, and the telescopic connecting rod 55 extends to work. The telescopic connecting rod 55 transmits the force to the connecting seat 58 on the limiting rod 57 through the sliding seat 56. The connecting seat 58 drives the welding head 6 to move towards the switch cabinet through the double-axis linear motor 59, achieving the effect of automatic alignment. The welding head 6 corresponding to the welding requirements is moved over a long distance for alignment welding. Combining the way that the remaining two welding heads 6 are retracted on the top of the welding position-changing machine base 1, while reducing the occupied area of the three welding heads 6, the effect of not interfering with the welding head 6 during the welding work is achieved; when the output shaft of the control motor 81 drives the transmission gear ring 83 to rotate through the driving gear 82, the transmission gear ring 83 squeezes the sliding shaft rod 73 to move through the combined groove in the guiding ring seat 85 at the initial stage of rotation. The sliding shaft rod 73 is stressed to squeeze the spring on its surface, and drives the hydraulic plate 74 to squeeze the liquid in the hydraulic base 71 through the sliding rod 72. After being stressed and squeezed, the liquid flows out evenly to both sides of the flow-through pipe 75. The flow-through pipe 75 drives the clamping plate 78 on the hydraulic drive hydraulic pipe 76 to move through this hydraulic pressure. During the mutual approaching movement of the two symmetrical clamping plates 78, the effect of clamping and positioning the switch cabinet on the positioning platform 9 is achieved. Using the power of controlling the welding head 6 to align with the switch cabinet for close welding to drive the two clamping plates 78 to clamp the switch cabinet, achieving the effect of automatic clamping and positioning. At the same time, the utilization of power can reduce the setting of driving parts, and to a certain extent, reduce the equipment cost.

[0039] The above embodiments are only used to illustrate the embodiments of the present invention, rather than to limit the embodiments of the present invention. Those of ordinary skill in the relevant technical field can also make various changes and modifications without departing from the spirit and scope of the embodiments of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the embodiments of the present invention. The patent protection scope of the embodiments of the present invention shall be defined by the claims.

Claims

1. A welding position-changing device for the gas chamber of a switch cabinet, characterized in that Including: A welding positioner base (1), on one side of the welding positioner base (1), a position-changing motor (2) is installed. The output shaft of the position-changing motor (2) is fixedly connected with a worm (3). A worm gear ring (4) is meshed on the surface of the worm (3). Three welding devices (5) are distributed in a fan-shaped array on the worm gear ring (4), and three different welding heads (6) are arranged on the three welding devices (5); A hydraulic clamping device (7), which is arranged on the welding positioner base (1); A fixed-control telescopic device (8), which is arranged on the welding positioner base (1) and is used to drive the welding device (5) to control the welding head (6) to perform telescoping; A positioning platform (9), which is arranged on the welding positioner base (1). An auxiliary roller (10) is movably connected to the positioning platform (9).

2. The welding position-changing device for the switchgear air chamber according to claim 1, wherein: The worm gear ring (4) is arranged as a hollow circular ring, and the end of the worm gear ring (4) is rotatably connected to the welding positioner base (1).

3. A welding position-changing device for a switchgear air chamber according to claim 1, characterized in that: The welding device (5) includes a connecting rod (51), the connecting rod (51) is fixedly connected to the worm gear ring (4). A limiting top seat (52) is fixedly connected to the connecting rod (51). A bidirectional threaded rod (53) is rotatably connected inside the limiting top seat (52). Two symmetrical screw seats (54) are threadedly connected to the bidirectional threaded rod (53). A telescopic connecting rod (55) is rotatably connected to the screw seat (54). The two ends of the telescopic connecting rod (55) are respectively slidably connected with a limiting rod (57) through a sliding seat (56). A connecting seat (58) is fixedly connected to the limiting rod (57). A double-shaft linear motor (59) is fixedly connected to the connecting seat (58).

4. A welding position-changing device for a switchgear air chamber according to claim 3, characterized in that: The screw seat (54) is slidably connected to the inner wall of the limiting top seat (52), and the output shaft of the double-shaft linear motor (59) is fixedly connected to the welding head (6).

5. The welding position-changing device for the switchgear air chamber according to claim 3, wherein: The welding device (5) further includes a cam clamping seat (510), the cam clamping seat (510) is slidably connected to the connecting rod (51). A clamping sleeve (511) is rotatably connected inside the cam clamping seat (510). A meshing gear (512) is fixedly connected to the clamping sleeve (511). A clamping shaft (513) is slidably connected inside the clamping sleeve (511).

6. The welding position-changing device for the switch cabinet air chamber according to claim 5, wherein: A spring is fixedly connected between the surface of the cam clamping seat (510) and the surface of the limiting top seat (52). The end of the clamping shaft (513) penetrates through one side of the limiting top seat (52) and is fixedly connected to the end of the bidirectional threaded rod (53).

7. A welding position-changing device for a switchgear air chamber according to claim 5, characterized in that: A cam ejector rod (514) is fixedly connected to the welding positioner base (1), and the cam ejector rod (514) is used to squeeze the cam clamping seat (510) to achieve position change.

8. A welding position-changing device for a switchgear gas chamber according to claim 1, characterized in that: The fixed-control telescopic device (8) includes a control motor (81), the control motor (81) is installed inside the welding positioner base (1), the output shaft of the control motor (81) is fixedly connected with a driving gear (82), the surface of the driving gear (82) is engaged with a transmission gear ring (83), one side of the transmission gear ring (83) is rotatably connected with a fixed ring seat (84), the inner ring wall of the transmission gear ring (83) is fixedly connected with a guiding ring seat (85), and the fixed ring seat (84) is fixedly connected inside the welding positioner base (1).

9. A welding position-changing device for a switchgear gas chamber according to claim 8, characterized in that: The hydraulic clamping device (7) includes a hydraulic base (71), the hydraulic base (71) is fixed inside the welding positioner base (1), a sliding rod (72) is slidably connected to the top of the hydraulic base (71), one end of the sliding rod (72) is fixedly connected with a sliding shaft rod (73), the other end of the sliding rod (72) is fixedly connected with a hydraulic plate (74), two sides of the hydraulic base (71) are both fixedly connected with a flow pipe (75), the end of the flow pipe (75) is fixedly connected with a hydraulic pipe (76), a piston in the hydraulic pipe (76) is connected with a plug rod (77), and the end of the plug rod (77) is fixedly connected with a clamping plate (78).

10. The welding position-changing device for the switchgear air chamber according to claim 9, characterized in that: The hydraulic plate (74) is piston-connected inside the hydraulic base (71), a spring is fixedly connected between the surface of the sliding shaft rod (73) and the surface of the hydraulic base (71), the end of the sliding shaft rod (73) is slidably connected to the inner wall of the guiding ring seat (85), and the inside of the hydraulic base (71) is communicated with the inside of the hydraulic pipe (76) through the flow pipe (75).

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