CN209140106U - Gas tank liner welding equipment - Google Patents

Abstract

The utility model relates to the technical field of welding equipment, in particular to a welding equipment for gas tank inner liner. The gas tank liner welding equipment includes a pairing device and two welding devices. The pairing device includes a roller frame supporting the gas tank body, and a head transporting device for moving the gas tank head to pair the gas tank head with the gas tank body, and the two head transporting devices are respectively arranged in opposite sides of the roller frame. The two welding devices correspond to the positions of the two head transporting devices, so as to weld the corresponding gas tank heads to both ends of the gas tank body. The gas tank liner welding equipment can automatically perform two-step operations of assembling and welding the gas tank liner at one time, thereby reducing the number of transfers, reducing labor intensity, and greatly improving production efficiency.

Description

Gas tank liner welding equipment

technical field

The utility model relates to the technical field of welding equipment, in particular to a welding equipment for gas tank inner liner.

Background technique

Liquefied natural gas has attracted more and more attention as a clean energy source, and the tank liner for storing liquefied natural gas has therefore become a vital equipment for liquefied natural gas storage and transportation. The gas tank liner is generally composed of three parts: the gas tank body located in the middle, and the two gas tank heads located at the ends of the gas tank body.

In the production and manufacture of traditional LNG gas tank liner, the alignment and welding are separated, that is, the gas tank is aligned by the alignment device first, then the preliminary positioning is performed by manual spot welding, and finally the gas tank is assembled. The inner tank is transported to the welding device for full welding and fixing. The whole process requires at least three stations and three transfers. Therefore, this process requires more equipment and complicated operations, which greatly reduces the production efficiency of the gas tank liner, and the welding process of spot welding and then full welding has a great negative impact on the welding quality of the gas tank liner .

Utility model content

In view of this, the purpose of the embodiments of the present invention is to provide a gas tank liner welding equipment to solve the above problems.

The gas tank liner welding equipment provided by the embodiment of the present invention includes a pairing device and two welding devices.

The pairing device includes a roller frame supporting the gas tank body, and a head transporting device for moving the gas tank head to make the gas tank head and the gas tank body pair. There are two head transporting devices. The two head transporting devices are respectively arranged on opposite sides of the roller frame.

The two welding devices correspond to the positions of the two head transporting devices, so as to weld the corresponding air tank heads to both ends of the air tank body.

Further, the welding device includes a welding robot and a welding seam tracking device.

The operation side of the welding robot faces the head transporting device, and the welding seam tracking device is provided on the welding torch of the welding robot to monitor and adjust the welding position of the welding robot.

Further, the welding device further includes a traveling device, and the welding robot is arranged on the traveling device to move relative to the head transport device under the driving of the traveling device.

Further, the walking device includes a base, a first sliding rail and a first transmission mechanism.

The base is arranged on one side of the head transport device, the first slide rail includes a first rail and a second rail arranged in parallel on the base, and the first transmission mechanism is arranged on the Between the first track and the second track, and connected with the welding robot, the welding robot is arranged above the first track and the second track, and can move along the welding robot under the action of the first transmission mechanism. The first rail and the second rail move in the longitudinal direction.

Further, the first transmission mechanism includes a transmission rack, a transmission gear and a first motor.

The drive rack is arranged between the first track rail and the second track, and the length direction of the drive rack is consistent with the horizontal direction of the first track and the second track, and the drive gear is fixed The gear part of the transmission gear is engaged with the transmission rack, and the rotating shaft of the first motor is connected to the control part of the transmission gear to control the rotation of the transmission gear and drive the The welding robot moves.

Further, each of the two end transporting devices includes a sliding seat, a second sliding rail, a support table, a second transmission mechanism and a turning mechanism.

The sliding seat is arranged on the first side or the second side of the roller frame, the second sliding rail includes a third rail and a fourth rail arranged in parallel with the sliding seat, and the supporting platform is arranged on the Above the third track and the fourth track, the second transmission mechanism is arranged between the third track and the fourth track, and is connected with the support table, so as to control the support table to move along the third track and the fourth track. The length direction of the fourth rail moves to be close to or away from the roller frame. The turning mechanism is arranged on the support table and can be turned over relative to the support table to adjust the air tank seal clamped to the turning mechanism. The opening of the head is facing.

Further, the turning mechanism includes a turning plate, a clamping claw and a pneumatic assembly.

The flap is arranged above the support table, the jaws are arranged on the flap, and the pneumatic component is arranged in the accommodating cavity opened inside the support table, and is connected with the flap, so that the Turn over under the control of the pneumatic assembly, and adjust the opening direction of the jaws.

Further, the head transport device further includes a rotation control mechanism.

The rotation control mechanism includes a rotation gear and a second motor arranged on the side of the flip plate away from the support table, the rotation gear is connected with the claws, and the rotation shaft of the second motor is connected with the rotation The gear is connected to control the rotating gear to drive the claw to rotate.

Further, the roller frame includes a guide rod and a lifting bracket.

The guide rod includes a first bracket and a second bracket arranged oppositely, the first bracket is close to one of the head transporting devices, the second bracket is close to the other head transporting device, the lifting bracket It is arranged between the first bracket and the second bracket, and can be extended and retracted to change the height of the gas tank body resting on the upper part of the lifting bracket.

Further, the gas tank liner welding equipment further includes an operating table, and the pairing device and the welding equipment are arranged on the operating table.

The gas tank liner welding equipment provided by the embodiment of the present invention includes a pairing device and two welding devices. The pairing device includes a roller frame supporting the gas tank body, and a head transporting device for moving the gas tank head to make the gas tank head and the gas tank body pair. There are two head transporting devices. The two head transporting devices are respectively arranged on opposite sides of the roller frame. The two welding devices correspond to the positions of the two head transporting devices, so as to weld the corresponding air tank heads to both ends of the air tank body. Therefore, in the process of welding the gas tank liner using the gas tank liner welding equipment provided in the embodiment of the present invention, the gas tank liner can be assembled by the pairing device first, and then the gas tank can be directly assembled by the welding device. The inner tank of the tank is welded, and the two-step operation of grouping and welding is automatically performed at one time, which reduces the number of transfers, reduces labor intensity, and greatly improves production efficiency.

Further, the welding device of the gas tank liner welding equipment provided by the embodiment of the present invention includes a welding robot and a welding seam tracking device, the operation side of the welding robot faces the head transport device, and the welding seam tracking device is arranged at the welding position. The welding gun of the robot is used to monitor and adjust the welding position of the welding robot. Therefore, the welding process can be completely performed automatically by the welding device, without manual spot welding for preliminary positioning and then full welding, which not only further improves production efficiency, but also There is a greater guarantee for the welding quality of the gas tank liner.

The above description is only an overview of the technical solution of the present invention, in order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the contents of the description, and in order to make the above-mentioned and other purposes, features and advantages of the present invention better. It is obvious and easy to understand, and the specific embodiments of the present invention are given below.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings required in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, Other related figures can be obtained from these figures.

FIG. 1 is a schematic structural diagram of a gas tank liner welding equipment provided by an embodiment of the present invention.

FIG. 2 is an enlarged view of the part A of the welding equipment for the inner tank of the gas tank shown in FIG. 1 .

FIG. 3 is an enlarged view of the part B of the welding equipment for the gas tank liner shown in FIG. 1 .

FIG. 4 is an enlarged view of the part C of the welding equipment for the inner tank of the gas tank shown in FIG. 1 .

FIG. 5 is a schematic structural diagram of another state of the gas tank liner welding equipment shown in FIG. 1 .

FIG. 6 is an enlarged view of the part D of the welding equipment for the inner tank of the gas tank shown in FIG. 5 .

Icon: 10-Gas tank liner welding equipment; 100-Group pair device; 110-Roller frame; 111-Guide rod; 1111-First bracket; 1112-Second bracket; 112-Lifting bracket; 120-Head transportation device; 121- sliding seat; 122- second sliding rail; 1221- third track; 1222- fourth track; 123- supporting table; 124- second transmission mechanism; 125- turning mechanism; Claw; 12521-claw base plate; 12522-slide rail; 12523-clamping strip; 126-rotation control mechanism; 1261-rotation gear; 1262-second motor; 200-welding device; 210-welding robot; 220-welding 230-traveling device; 231-base; 232-first slide rail; 2321-first track; 2322-second track; 233-first transmission mechanism; 2331-transmission rack; 2332-transmission gear ; 2333 - the first motor; 300 - console.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below 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, but not all of the embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present invention.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

Referring to FIG. 1 , an embodiment of the present invention provides a gas tank liner welding equipment 10 , and the gas tank liner welding equipment 10 includes a pairing device 100 and two welding devices 200 .

The pairing device 100 includes a roller frame 110 for supporting the gas tank body, and a head transport device 120 for moving the gas tank head to align the gas tank head and the gas tank body. There are two end transporting devices 120, and the two end transporting devices 120 are respectively disposed on opposite sides of the roller frame 110. In this embodiment, for the convenience of description, the opposite sides may be defined as the first side and the second side of the roller frame 110 . The positions of the two welding devices 200 correspond to the two head transporting devices 120 , so as to weld the corresponding gas tank heads to both ends of the gas tank body.

In this embodiment, the gas tank liner welding equipment 10 may further include an operating table 300 , and both the assembling device 100 and the welding equipment are arranged on the operating table 300 .

In the process of welding the gas tank inner tank using the gas tank inner tank welding equipment 10 provided by the embodiment of the present invention, the gas tank inner tank can be assembled first by the grouping device 100, specifically, the gas tank body can be placed On the roller frame 110 , the two gas tank heads and the gas tank body are assembled and aligned by the two head transport devices 120 respectively, and then the gas tank inner tank is directly welded by the welding device 200 . Therefore, the gas tank liner welding equipment 10 can automatically perform the two-step operations of pairing and welding at one time, which reduces the number of transfers, reduces labor intensity, and greatly improves production efficiency.

In order to further improve the production efficiency and at the same time to ensure the welding quality of the gas tank liner, in this embodiment, the welding device 200 may include a welding seam tracking device 220 in addition to the welding robot 210 .

Further, in this embodiment, the operation side of the welding robot 210 faces the corresponding head transport device 120 for welding the head moved by the corresponding head transport device 120 to the end of the gas tank body. Optionally, in this embodiment, the welding robot 210 is a six-axis arc welding robot, which has 6 degrees of freedom and can move flexibly within an effective range to complete welding work in various postures. The welding seam tracking device 220 is disposed on the welding torch of the welding robot 210 to monitor and adjust the welding position of the welding robot 210 . In this embodiment, the welding seam tracking device 220 may include a sensor (not shown in the figure) and a controller (not shown in the figure). The sensor is arranged on the welding torch of the welding robot 210, and the controller is connected with the sensor and the welding robot 210, respectively. The sensor may be an arc sensor, which is used to obtain the relative position between the welding torch and the welding seam by detecting the change of the welding current, and send it to the controller, so that the controller can adjust the welding of the welding robot 210 according to the received relative position. Location.

In order to facilitate the adjustment of the position of the welding robot 210 to further improve the production efficiency, optionally, in this embodiment, the welding device 200 further includes a traveling device 230 , and the welding robot 210 is arranged on the traveling device 230 so that the welding robot 210 can be installed on the traveling device 230 Driven to move relative to the head transport device 120 . For the convenience of description, the direction from the first side to the second side of the roller frame 110 is defined as the movable direction. In this embodiment, the traveling device 230 is used to drive the welding robot 210 to move back and forth on a path parallel to the movable direction.

Referring to FIG. 2 , further, in this embodiment, the traveling device 230 includes a base 231 , a first sliding rail 232 and a first transmission mechanism 233 . The base 231 is disposed on one side of the head transport device 120 , and the longitudinal direction of the base 231 is parallel to the movable direction. The first sliding rail 232 includes a first rail 2321 and a second rail 2322 arranged in parallel on the base 231 , and the length directions of the first rail 2321 and the second rail 2322 are consistent with the length direction of the base 231 . The first transmission mechanism 233 is disposed between the first rail 2321 and the second rail 2322 and is connected to the welding robot 210 . The welding robot 210 is disposed above the first rail 2321 and the second rail 2322, and can move along the length direction of the first rail 2321 and the second rail 2322 under the action of the first transmission mechanism 233, that is, in parallel to the movable Move back and forth on the path in the direction.

The first transmission mechanism 233 may include a transmission rack 2331, a transmission gear 2332 and a first motor 2333. The transmission rack 2331 is disposed between the first rail 2321 and the second rail 2322 , and the longitudinal direction of the transmission rack 2331 is consistent with the horizontal direction of the first rail 2321 and the second rail 2322 . The fixed part of the transmission gear 2332 is disposed on the welding robot 210 , and the gear part of the transmission gear 2332 meshes with the transmission rack 2331 . The rotating shaft of the first motor 2333 is connected with the control part of the transmission gear 2332 to control the rotation of the transmission gear 2332 to drive the welding robot 210 to move. The basic working principle of the first transmission mechanism 233 is that when the first motor 2333 is started, the rotating shaft of the first motor 2333 controls the rotation of the transmission gear 2332. Since the gear part of the transmission gear 2332 is in mesh with the transmission rack 2331, The transmission gear 2332 is caused to move on the transmission rack 2331 under a reverse force. It can be understood that the moving direction of the transmission gear 2332 is related to the rotation direction of the rotating shaft of the first motor 2333 .

Through the above arrangement, after the gas tank liner is assembled by the head transport device 120, the gas tank liner can be directly welded by the welding device 200, and the welding process can be completely performed automatically by the welding device 200 without manual labor. After initial positioning of spot welding, full welding is carried out, which not only further improves the production efficiency, but also greatly guarantees the welding quality of the gas tank liner.

In addition, regarding the pairing device 100 , the roller frame 110 it includes may include a guide rod 111 and a lifting bracket 112 . The guide rod includes a first bracket 1111 and a second bracket 1112 arranged opposite to each other. The first bracket 1111 is close to one head transport device 120 , and the second bracket 1112 is close to another head transport device 120 . In this embodiment, a groove for positioning the gas tank body is provided above the first bracket 1111 and the second bracket 1112 , and the groove is an arc-shaped groove that can match the outer periphery of the gas tank body. The lift bracket 112 is disposed between the first bracket 1111 and the second bracket 1112 , and can be extended and retracted to change the height of the gas tank body supported above the lift bracket 112 .

Please refer to FIG. 3 and FIG. 4 , further, in this embodiment, each of the two head transporting devices 120 of the pairing device 100 may include a sliding seat 121 and a second sliding rail 122 . , a support table 123 , a second transmission mechanism 124 and a turning mechanism 125 .

From the above, in this embodiment, there are two head transport devices 120 , and the two head transport devices 120 are respectively disposed on the first side and the second side of the roller frame 110 , that is, the two head transport devices 120 The roller frame 110 is symmetrically arranged at the center. The structure of the head conveying device 120 will be described below by taking the head conveying device 120 disposed on the first side of the roller frame 110 as an example.

The sliding seat 121 of the head transporting device 120 is disposed on the first side of the roller frame 110 , and the length direction of the sliding seat 121 is consistent with the movable direction. The second slide rail 122 includes a third rail 1221 and a fourth rail 1222 that are parallel to the slide base 121 , and the length directions of the third rail 1221 and the fourth rail 1222 are consistent with the length direction of the slide base 121 . The support table 123 is disposed above the third rail 1221 and the fourth rail 1222 . The second transmission mechanism 124 is disposed between the third rail 1221 and the fourth rail 1222, and is connected to the support table 123, so as to control the support table 123 to move along the length direction of the third rail 1221 and the fourth rail 1222, and move closer or farther away Roller frame 110. The inversion mechanism 125 is disposed on the support table 123 and can be inverted relative to the support table 123 to adjust the opening direction of the head of the gas tank clamped to the inversion mechanism 125. Specifically, the air tank clamped to the inversion mechanism 125 can be sealed. The opening of the head is adjusted to face the roller frame 110 or upward.

Please refer to Fig. 5 and Fig. 6, further, in this embodiment, the turning mechanism 125 includes a turning plate 1251, a clamping claw 1252 and a pneumatic assembly (not shown in the figure). The flap 1251 is disposed above the support table 123 . Optionally, in this embodiment, the flap 1251 is hinged at a position above the support platform 123 away from the roller frame 110 . The claws 1252 are disposed on the turning plate 1251 , and when the turning plate 1251 is in a horizontal state, the claws 1252 are located above the turning plate 1251 . The pneumatic assembly is arranged in the accommodating cavity opened inside the support table 123, and is connected with the flap 1251, so as to be turned over under the control of the pneumatic assembly, and the opening direction of the claw 1252 can be adjusted. Specifically, the opening of the claw 1252 can be adjusted to face the roller. The shelf 110 (as shown in Figures 3 and 4) or facing upward (as shown in Figures 5 and 6).

In this embodiment, the clamping claw 1252 may include a clamping claw base plate 12521 , a sliding rail 12522 and a clamping bar 12523 . The claw base plate 12521 can be in the shape of a disc, one side of which is fixed to the turning plate 1251 through a connecting mechanism, and when the turning plate 1251 is in a horizontal state, the connecting mechanism is located above the turning plate 1251 . All multiple sliding rails 12522 are provided, and the multiple sliding rails 12522 can be arranged in a circular array on the side of the jaw base plate 12521 away from the connection mechanism, and for each sliding rail 12522, one end of the sliding rail 12522 It is close to the center of the claw base plate 12521 , and the other end is close to the edge of the claw base plate 12521 . There are also a plurality of clamping strips 12523, and the plurality of clamping strips 12523 are in one-to-one correspondence with the plurality of sliding rails 12522, and for each clamping strip 12523, one end of the clamping strip 12523 is set on the corresponding sliding rail 12522 and can move on the sliding rail 12522, and the other end extends away from the sliding rail 12522. Specifically, the length direction of the clamping strip 12523 can be perpendicular to the length direction of the sliding rail 12522. In this way, when the plurality of clamping bars 12523 are all moved on the corresponding sliding rails 12522 in a direction close to the center of the clamping claw base plate 12521, the clamping space enclosed by the plurality of clamping bars 12523 can be reduced. Correspondingly, when the plurality of snap bars 12523 move toward the edge of the claw base plate 12521 on their corresponding slide rails 12522, the snap connection formed by the plurality of snap bars 12523 can be increased. the size of the space. It is easy to understand that the clipping space is the space for accommodating or clipping the head of the gas tank.

In order to further improve the automation degree of the welding of the inner tank of the gas tank, optionally, in this embodiment, the head transport device 120 further includes a rotation control mechanism 126 . In this embodiment, one side of the claw base plate 12521 is fixed to the turning plate 1251 through the rotation control mechanism 126 , that is, the above-mentioned connection mechanism is the rotation control mechanism 126 . In this embodiment, the rotation control mechanism 126 may include a rotation gear 1261 and a second motor 1262 disposed on the side of the flap 1251 away from the support table 123 . The rotating gear 1261 is connected with the claws 1252 , and specifically connected with the side of the base plate 12521 of the claws far away from the sliding rail 12522 and the clamping bar 12523 . The rotating shaft of the second motor 1262 is connected with the rotating gear 1261 to control the rotating gear 1261 to drive the claw 1252 to rotate, thereby driving the inner tank of the gas tank that has been engaged with the claw 1252 to rotate.

In the process of assembling the gas tank liner by the gas tank liner welding equipment 10 provided by the embodiment of the present invention, first, for a head transport device 120, the pneumatic assembly of the turning mechanism 125 can be used to adjust the card The opening of the claw 1252 is oriented so that the opening of the claw 1252 is adjusted to face upward, and then a gas tank head is placed in the clamping space surrounded by the plurality of clamping strips 12523 of the clamping claw 1252, and more The clamping strips 12523 move toward the center of the clamping claw base plate 12521 on their corresponding sliding rails 12522 to reduce the size of the clamping space, so that the clamping strips 12523 are in close contact with the gas tank head. The air tank head is fixed, and then, through the pneumatic assembly of the turning mechanism 125 again, the opening direction of the jaw 1252 is adjusted, so that the opening of the jaw 1252 is adjusted to face the roller frame 110. For another head transport device 120, The other gas tank head is also fixed in the same way, and then, the gas tank body is placed on the drum frame, and the lifting bracket 112 is controlled to rise, so that the axis of the gas tank body is the same as the axis of the two gas tank heads. After that, through the second transmission mechanism 124 of each head transport device 120, the support table 123 is controlled to move, so that the two air tank heads move in the direction close to the roller frame 110 respectively, so as to realize the two air tank heads and the A pair of gas tank bodies.

In the process of welding the gas tank inner tank by the gas tank inner tank welding equipment 10 provided by the embodiment of the present invention, firstly, by controlling the rotation control mechanism 126 of the two head transport devices 120, the grouped pair is completed. The inner tank of the gas tank rotates, after that, the two welding robots 210 are moved to the preset working positions for welding by the traveling device 230 of the welding device 200 respectively. After the welding is completed, the traveling device 230 of the welding device 200 makes the two welding robots The welding robot 210 moves to a preset standby position. Then, the plurality of clamping bars 12523 are moved on the corresponding sliding rails 12522 in a direction close to the edge of the clamping claw base plate 12521, so as to increase the size of the clamping space, so that the plurality of clamping bars 12523 are connected to the gas tank head. To disengage, and finally, through the second transmission mechanism 124 of each head transporting device 120 , the supporting platform 123 can be controlled to move in a direction away from the roller frame 110 .

To sum up, the gas tank liner welding equipment 10 provided by the embodiment of the present invention includes a pairing device 100 and two welding devices 200 . The pairing device 100 includes a roller frame 110 for supporting the gas tank body, and a head transporting device 120 for moving the gas tank head and aligning the gas tank head and the gas tank body. There are two head transporting devices 120. The two head transporting devices 120 are respectively disposed on opposite sides of the roller frame 110 . The positions of the two welding devices 200 correspond to the two head transporting devices 120 , so as to weld the corresponding gas tank heads to both ends of the gas tank body. Therefore, in the process of using the gas tank liner welding equipment 10 provided by the embodiment of the present invention to weld the gas tank liner, the gas tank liner can be assembled by the pairing device 100 first, and then the welding device 200 can be used to assemble the gas tank liner. Directly weld the inner tank of the gas tank, and automatically perform the two-step operation of pairing and welding at one time, which reduces the number of transfers, reduces labor intensity, and greatly improves production efficiency.

Further, the welding device 200 of the gas tank liner welding equipment 10 provided by the embodiment of the present invention includes a welding robot 210 and a welding seam tracking device 220, the operation side of the welding robot 210 faces the head transport device 120, and the welding seam tracking device 220 The device 220 is arranged on the welding torch of the welding robot 210 to monitor and adjust the welding position of the welding robot 210. Therefore, the welding process can be completely performed automatically by the welding device 200, without manual spot welding for preliminary positioning and then full welding, not only further. Improve production efficiency, and also have a greater guarantee for the welding quality of the gas tank liner.

In the description of the present utility model, it should also be noted that, unless otherwise expressly specified and limited, the terms "arrangement" and "connection" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, or cooperate with each other. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In the description of the present utility model, it should also be noted that the orientation or positional relationship indicated by the terms "above", "one side", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or when the utility model product is used. The usual orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as Limitations of the present invention. Furthermore, the terms "first", "second", etc. are only used to differentiate the description and should not be construed to indicate or imply relative importance.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. a gas tank inner tank welding equipment, the gas tank inner tank comprises a gas tank body and two gas tank heads, it is characterized in that, the gas tank inner tank welding equipment comprises a pairing device and two welding devices ; The pairing device includes a roller frame supporting the gas tank body, and a head transporting device for moving the gas tank head to make the gas tank head and the gas tank body pair. There are two head transporting devices. Two of the head transporting devices are respectively arranged on opposite sides of the roller frame; The two welding devices correspond to the positions of the two head transporting devices, so as to weld the corresponding air tank heads to both ends of the air tank body. 2. The gas tank liner welding equipment according to claim 1, wherein the welding device comprises a welding robot and a welding seam tracking device; The operation side of the welding robot faces the head transporting device, and the welding seam tracking device is provided on the welding torch of the welding robot to monitor and adjust the welding position of the welding robot. 3 . The gas tank liner welding equipment according to claim 2 , wherein the welding device further comprises a traveling device, and the welding robot is arranged on the traveling device so as to be opposite to the traveling device under the driving of the traveling device. 4 . Move on the head transport device. 4. The gas tank liner welding equipment according to claim 3, wherein the traveling device comprises a base, a first sliding rail and a first transmission mechanism; The base is arranged on one side of the head transport device, the first slide rail includes a first rail and a second rail arranged in parallel on the base, and the first transmission mechanism is arranged on the Between the first track and the second track, and connected with the welding robot, the welding robot is arranged above the first track and the second track, and can act on the first transmission mechanism The bottom moves along the length direction of the first track and the second track. 5. The gas tank liner welding equipment according to claim 4, wherein the first transmission mechanism comprises a transmission rack, a transmission gear and a first motor; The transmission rack is arranged between the first rail and the second rail, and the length direction of the transmission rack is consistent with the horizontal direction of the first rail and the second rail. The fixed part of the gear is arranged on the welding robot, the gear part of the transmission gear meshes with the transmission rack, and the rotating shaft of the first motor is connected with the control part of the transmission gear to control the rotation of the transmission gear , and drive the welding robot to move. 6 . The gas tank liner welding equipment according to claim 1 , wherein each of the two head transporting devices comprises a sliding seat, a second sliding rail, a support table, The second transmission mechanism and the turning mechanism; The sliding seat is arranged on the first side or the second side of the roller frame, the second sliding rail includes a third rail and a fourth rail arranged in parallel with the sliding seat, and the supporting platform is arranged on the Above the third track and the fourth track, the second transmission mechanism is arranged between the third track and the fourth track, and is connected with the support table, so as to control the support table to move along the third track and the fourth track. The length direction of the fourth rail moves to be close to or away from the roller frame. The turning mechanism is arranged on the support table and can be turned over relative to the support table to adjust the air tank seal clamped to the turning mechanism. The opening of the head is facing. 7. The gas tank liner welding equipment according to claim 6, wherein the turning mechanism comprises a turning plate, a clamping claw and a pneumatic assembly; The flap is arranged above the support table, the jaws are arranged on the flap, and the pneumatic component is arranged in the accommodating cavity opened inside the support table, and is connected with the flap, so that the Turn over under the control of the pneumatic assembly, and adjust the opening direction of the jaws. 8. The gas tank liner welding equipment according to claim 7, wherein the head transport device further comprises a rotation control mechanism; The rotation control mechanism includes a rotation gear and a second motor arranged on the side of the flip plate away from the support table, the rotation gear is connected with the claws, and the rotation shaft of the second motor is connected with the rotation The gear is connected to control the rotating gear to drive the claw to rotate. 9. The gas tank liner welding equipment according to claim 1, wherein the roller frame comprises a guide rod and a lifting bracket; The guide rod includes a first bracket and a second bracket arranged oppositely, the first bracket is close to one of the head transporting devices, the second bracket is close to the other head transporting device, the lifting bracket It is arranged between the first bracket and the second bracket, and can be extended and retracted to change the height of the gas tank body resting on the upper part of the lifting bracket. 10 . The gas tank liner welding equipment according to claim 1 , wherein the gas tank liner welding equipment further comprises an operating table, and the pairing device and the welding equipment are arranged on the operating table. 11 .