CN219900749U - Door plank door beam welding mechanism - Google Patents

Abstract

The utility model discloses a door plate and door beam welding mechanism, and belongs to the field of container production. The door plate and door beam welding mechanism comprises a conveying supporting device and automatic welding devices fixedly arranged at two ends of the conveying supporting device; the conveying support device comprises a first frame, a conveying assembly, a z-direction positioning assembly, a clamping plate assembly and an x-direction limiting assembly, wherein the conveying assembly, the z-direction positioning assembly, the clamping plate assembly and the x-direction limiting assembly are arranged on the first frame; the conveying assembly conveys the door plate workpiece to the x-direction limiting assembly to block one end of the door plate workpiece for x-direction limiting, the clamping plate assembly supports and clamps the door plate workpiece along the y-direction, the door plate workpiece is separated from the conveying assembly, and the z-direction positioning assembly tightly pushes against two sides of the door plate workpiece along the z-direction.

Description

Door plank door beam welding mechanism

Technical Field

The utility model relates to the field of container production, in particular to a door plate and door beam welding mechanism.

Background

The container is a large-sized cargo container with certain strength, rigidity and specification and is specially used for turnover. As a storage and transportation device commonly used in modern logistics, containers are increasingly used. The container is a rectangular box-like member formed by welding door plates, and the door plate structure of the container is generally formed by welding two door cross beams, two door vertical beams and one door plate.

The conventional door panel assembly process sequentially includes assembly, pre-spot welding and welding of the door panels, followed by the finished door panels. In the welding process of door crossbeam and door plant, the door plant door crossbeam after spot welding is transported to the welding bench to the manual work or manipulator to the traditional technology often, has increased transportation cost greatly, and adopts low-cost gyro wheel or belt transportation can't carry out accurate location to the door plant door crossbeam after spot welding again and place, and door plant door crossbeam at welding process, and gyro wheel or belt transportation can make door plant door crossbeam remove, can't fixed welding, thereby has greatly influenced welded precision and has influenced the finished product quality.

Therefore, there is a need for a door panel door beam welding mechanism that combines low cost automated transportation and high precision automated welding.

Disclosure of Invention

In order to solve the existing technical problems. The utility model provides a door plate and door beam welding mechanism, which comprises a conveying supporting device and automatic welding devices fixedly arranged at two ends of the conveying supporting device; the conveying support device comprises a first frame, a conveying assembly, a z-direction positioning assembly, a clamping plate assembly and an x-direction limiting assembly, wherein the conveying assembly, the z-direction positioning assembly, the clamping plate assembly and the x-direction limiting assembly are arranged on the first frame; the conveying assembly conveys the door plate workpiece to the x-direction limiting assembly to block one end of the door plate workpiece for x-direction limiting, the clamping plate assembly supports and clamps the door plate workpiece along the y-direction, the door plate workpiece is separated from the conveying assembly, and the z-direction positioning assembly tightly pushes against two sides of the door plate workpiece along the z-direction.

Further, the clamping plate assembly comprises a first limiting unit fixedly installed on the first rack and a supporting unit arranged right below the first limiting unit; the supporting unit comprises a supporting plate and a lifting driving part; the second driving unit is fixedly arranged on the first frame below the conveying assembly; one end of the supporting plate is connected with the output end of the lifting driving part, and the lifting driving part drives the supporting plate to lift; during operation, conveying assembly carries the door plant work piece to the one end that x was blocked the door plant work piece to spacing subassembly along conveying direction carries out x to spacing, lift drive portion drive backup pad rises, make the door plant break away from conveying assembly, and continue to rise to the backup pad, lift drive portion presss from both sides tight door plant door crossbeam, z is spacing to the tight door plant door crossbeam both sides of z-direction locating component top, automatic welder welds the door plant door crossbeam afterwards, lift drive portion drive backup pad descends after the door plant door crossbeam welding finishes, make the door plant door crossbeam place on conveying assembly, conveying assembly carries the door plant to next station, device simple structure, convenient operation, full-automatic and the accurate welding of door plant door crossbeam transport and welding flow have been realized.

Further, the z-direction positioning assembly comprises a push plate unit fixedly arranged on one side of the first frame and a second limiting unit fixedly arranged on the other side of the first frame opposite to the push plate unit; the push plate unit comprises a push plate driving part fixedly arranged on the first rack and a push plate part connected with the output end of the push plate driving part, and the push plate driving part drives the push plate part to push the second limit unit to be close or away; during operation, the push plate driving part drives the push plate part to push away the second limiting unit, the z direction of the door plate and door beam is limited, the position of the door plate and door beam is more accurate, the accuracy of automatic welding is improved, and after welding is finished, the push plate driving part drives the push plate part to push away from the second limiting unit.

Further, the second limiting unit comprises a roller, the contact surface between the roller and the side surface of the door plate door beam is small, the friction force between the roller and the side surface of the door plate door beam is reduced, and the side surface of the door plate door beam is prevented from being damaged by friction in the transportation process.

Further, the x-direction limiting assembly comprises a limiting rod and a limiting driving assembly fixedly arranged on the first frame; an output shaft of the limit driving assembly is connected with one end of the limit rod to drive the limit rod to lift; during operation, spacing drive assembly drive gag lever post descends, and x is to spacing that spacing subassembly blocks the one end of the door plant work piece that conveying assembly carried and carries out x to spacing, and door plant work piece position is more accurate, has improved automatic weld's precision, and after the welding finishes, spacing drive assembly drive gag lever post rises, and convenient conveying assembly is sent the door plant door crossbeam and is carried strutting arrangement from carrying, realizes the automation that the door plant door crossbeam carried.

Further, the conveying assembly comprises a conveying unit and a conveying driving assembly; the conveying unit is rotatably arranged on the first rack; the conveying driving assembly is fixedly arranged on the first frame, an output shaft of the conveying driving assembly is in transmission connection with the conveying unit, and the conveying driving assembly drives the conveying unit to rotate, so that automatic transportation of the door plate and the door beam is realized.

Further, automatic welding device is including setting up at the second frame that carries strutting arrangement both sides, set up the z to the slip subassembly in the second frame, along z to the slip subassembly along z to sliding connection's connecting plate, the x that fixed mounting was on the connecting plate is to the slip subassembly and send the welding wire subassembly, along x to the slip subassembly along x to sliding connection's y to the slip subassembly, with y to the slip subassembly along y to sliding connection's welding subassembly, during operation, can follow z to, x is to, y to realizing respectively that the welding subassembly is along fore-and-aft, control, up-and-down slip come adjustment welding position, realize accurate welding.

Further, the z-direction sliding assembly comprises a first driving unit and a z-direction sliding rail horizontally arranged between the second frames; the first driving unit is fixedly arranged on the second rack, an output shaft of the first driving unit is in transmission connection with the connecting plate, and the first driving unit drives the connecting plate to slide forwards and backwards along z on the z-direction sliding rail.

Further, the x-direction sliding assembly comprises a second driving unit and an x-direction sliding rail fixedly arranged on the connecting plate; the second driving unit is fixedly connected with the x-direction sliding rail; the output end of the second driving unit is in transmission connection with the y-direction sliding component, and the second driving unit drives the y-direction sliding component to slide leftwards and rightwards along x on the x-direction sliding rail.

Further, the y-direction sliding component comprises a third driving unit and a y-direction sliding rail which is in sliding connection with the x-direction sliding component; the third driving unit is fixedly connected with the y-direction sliding rail; the output end of the third driving unit is in transmission connection with the welding assembly, and the third driving unit drives the welding assembly to slide up and down along y on the y-direction sliding rail.

Furthermore, the welding assembly comprises a sliding block which is in sliding connection with the y-direction sliding assembly and a welding head which is in rotary connection with the sliding block, so that the welding angle of the welding head can be conveniently adjusted.

The beneficial effects are that:

(1) The utility model provides a door plate and door beam welding mechanism, wherein a conveying assembly conveys a door plate workpiece to an x-direction limiting assembly to block one end of the door plate workpiece for x-direction limiting, a lifting driving part drives a supporting plate to lift so as to enable a door plate to separate from the conveying assembly and to continuously lift to the supporting plate, the lifting driving part clamps the door plate and door beams, a z-direction positioning assembly is used for propping up two sides of the door plate and door beams for z-direction limiting, then an automatic welding device is used for welding the door plate and door beams, after the door plate and door beams are welded, a push plate of the z-direction positioning assembly is retracted to loosen two sides of the door plate and door beams, the lifting driving part drives the supporting plate to descend so as to enable the door plate and door beams to be placed on the conveying assembly, a limiting rod of the x-direction limiting assembly is lifted, and the conveying assembly conveys the door plate to the next station.

(2) The z-direction positioning component is formed by combining a push plate unit and a second limiting unit; the push plate unit adopts a push plate driving part to drive the push plate part to push the second limit unit or push the push plate part to be away from the second limit unit; during operation, the push plate driving part drives the push plate part to push away the second limiting unit, the z direction of the door plate and door beam is limited, the position of the door plate and door beam is more accurate, the accuracy of automatic welding is improved, and after welding is finished, the push plate driving part drives the push plate part to push away from the second limiting unit.

(4) The X-direction limiting assembly comprises a limiting rod and a limiting driving assembly fixedly arranged on a first rack; an output shaft of the limit driving assembly is connected with one end of the limit rod to drive the limit rod to lift; when the device works, the limiting driving assembly drives the limiting rod to descend, and one end of the door plate workpiece conveyed by the conveying assembly (12) along the conveying direction is blocked to limit in the x direction; the door plate door beam position is more accurate, improves automatic welding's precision, and after the welding finishes, spacing drive assembly drive gag lever post rises, and convenient conveying assembly sends the door plate door beam away from carrying strutting arrangement, realizes the automation that the door plate door beam carried.

(5) The conveying assembly is formed by connecting an output shaft of the conveying driving assembly with the conveying unit in a transmission way, and the conveying driving assembly drives the conveying unit to rotate, so that automatic transportation of the door plate and the door beam is realized.

(6) The automatic welding device is formed by combining the second frame, the z-direction sliding component, the connecting plate, the x-direction sliding component, the welding wire feeding component, the y-direction sliding component and the welding component, and can respectively realize the front-back, left-right and up-down sliding of the welding component along the z-direction, the x-direction and the y-direction to adjust the welding position during operation, thereby realizing accurate welding.

(7) The z-direction sliding component adopts a first driving unit and a z-direction sliding rail combination; an output shaft of the first driving unit is in transmission connection with the connecting plate, and the first driving unit drives the connecting plate to slide forwards and backwards along z on the z-direction sliding rail.

(8) The X-direction sliding component adopts a second driving unit and an X-direction sliding rail combination; the output end of the second driving unit is in transmission connection with the y-direction sliding component, and the second driving unit drives the y-direction sliding component to slide leftwards and rightwards along x on the x-direction sliding rail.

(9) The y-direction sliding component adopts a third driving unit and a y-direction sliding rail; and the output end of the third driving unit is in transmission connection with the welding assembly, and the third driving unit drives the welding assembly to slide up and down along y on the y-direction sliding rail.

(10) The welding assembly adopts the sliding block which is in sliding connection with the x-direction sliding assembly and the welding head which is in rotating connection with the sliding block, so that the welding angle of the welding head is convenient to adjust.

Drawings

FIG. 1 is a perspective view of a door panel door beam welding mechanism of the present utility model;

FIG. 2 is a front view of a door panel door beam welding mechanism of the present utility model;

FIG. 3 is a left side view of a door panel door beam welding mechanism of the present utility model;

FIG. 4 is a cross-sectional view of the B-B plane of FIG. 6;

FIG. 5 is a right side view of a door panel door beam welding mechanism of the present utility model;

FIG. 6 is a top view of a door panel door beam welding mechanism of the present utility model;

the reference numerals are: the conveying support device 1, the first frame 11, the conveying assembly 12, the conveying unit 121, the conveying driving assembly 122, the z-direction positioning assembly 13, the push plate unit 131, the second limiting unit 132, the clamping plate assembly 14, the first limiting unit 141, the support unit 142, the lifting driving part 1421, the support plate 1422, the x-direction limiting assembly 15, the automatic welding device 2, the second frame 21, the z-direction sliding assembly 22, the z-direction sliding rail 221, the connecting plate 23, the x-direction sliding assembly 24, the second driving unit 241, the x-direction sliding rail 242, the welding wire feeding assembly 25, the y-direction sliding assembly 26, the third driving unit 261, the y-direction sliding rail 262, the welding assembly 27, the sliding block 271, and the welding head 272.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the embodiments of the present utility model, it should be understood that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate orientations or positional relationships based on those shown in the drawings, or those conventionally put in place when the inventive product is used, or those conventionally understood by those skilled in the art, merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Example 1

Referring to fig. 1 to 6, in the door plate and door beam welding mechanism of the present embodiment, the conveying and supporting device 1 includes a first frame 11, a conveying component 12, a z-directional positioning component 13, a clamping plate component 14, and an x-directional limiting component 15 mounted on the first frame 11; the conveying assembly 12 conveys the door plate workpiece to the x-direction limiting assembly 15 to block one end of the door plate workpiece for x-direction limiting, the clamping plate assembly 14 supports and clamps the door plate workpiece along the y-direction, the door plate workpiece is separated from the conveying assembly 12, and the z-direction positioning assembly 13 pushes against two sides of the door plate workpiece along the z-direction.

The clamping plate assembly 14 of the present embodiment includes a first limiting unit 141 fixedly installed on the first frame 11, and a supporting unit 142 disposed right under the first limiting unit 141; the supporting unit 142 includes a supporting plate 1422, a lifting driving part 1421; the second driving unit is fixedly arranged on the first frame 11 below the conveying assembly 12; one end of the supporting plate 1422 is connected with the output end of the lifting driving part 1421, and the lifting driving part 1421 drives the supporting plate 1422 to lift; during operation, the door plant enters into the transport strutting arrangement 1 automatically through conveying component 12, lift drive portion 1421 drive backup pad 1422 rises, make the door plant break away from conveying component 12, and it presss from both sides tight with the door plant door crossbeam to continue to rise to backup pad 1422, lift drive portion 1421, Z is to locating component 13, X carries out Z to spacing component 15 to door plant door crossbeam and X to spacing, automatic welder 2 welds to door plant door crossbeam afterwards, lift drive portion 1421 drive backup pad 1422 descends after the door plant door crossbeam welding finishes, make door plant door crossbeam place on conveying component 12, conveying component 12 carries the door plant to next station, device simple structure, convenient operation, full-automatic and the accurate welding of door plant door crossbeam transportation and welding process have been realized.

The lift driving unit 1421 of the present embodiment employs an air cylinder.

The z-directional positioning assembly 13 of the present embodiment includes a push plate unit 131 fixedly installed at one side of the first frame 14, and a second limiting unit 132 fixedly installed at the other side of the first frame 11 opposite to the push plate unit 131; the push plate unit 131 comprises a push plate driving part fixedly installed on the first frame 11 and a push plate part connected with the output end of the push plate driving part, and the push plate driving part drives the push plate part to push the second limiting unit 132 to be close to or away from the first limiting unit; during operation, the push plate driving part drives the push plate part to push the second limiting unit 132, the z direction of the door plate and door beam is limited, the position of the door plate and door beam is more accurate, the accuracy of automatic welding is improved, and after welding is finished, the push plate driving part drives the push plate part to push away from the second limiting unit 132.

The push plate driving part of the embodiment adopts an air cylinder; the push plate portion of the present embodiment includes a push rod.

The second limiting unit 132 of this embodiment includes a roller, and the contact surface of the roller and the door plank door beam side is small, so that the friction force between the roller and the door plank door beam side is reduced, and the door plank door beam side friction damage in the transportation process is avoided.

The x-direction limiting assembly 15 of the embodiment comprises a limiting rod and a limiting driving assembly fixedly arranged on the first frame 11; an output shaft of the limit driving assembly is connected with one end of the limit rod to drive the limit rod to lift; during operation, spacing drive assembly drive gag lever post descends, and x is to spacing assembly one end that blocks the door plant work piece that conveying assembly carried and carry out x to spacing, and after the welding was accomplished, spacing drive assembly drive gag lever post risees, makes things convenient for conveying assembly to send the door plant door crossbeam from carrying strutting arrangement, has improved automatic welded precision, realizes the automation that the door plant door crossbeam carried.

The spacing drive assembly of this embodiment includes a cylinder.

The conveying assembly 12 of the present embodiment includes a conveying unit 121 and a conveying drive assembly 122; the conveying unit 121 is rotatably installed on the first frame 11; the conveying driving assembly 122 is fixedly installed on the first frame 11, an output shaft of the conveying driving assembly 122 is in transmission connection with the conveying unit 121, and the conveying driving assembly 122 drives the conveying unit 121 to rotate, so that automatic transportation of the door plate and door beam is realized.

The conveying drive assembly 122 of the present embodiment employs a motor; the conveying unit 121 adopts a roller unit; the transmission connection structure of the output shaft of the conveying driving assembly 122 and the conveying unit 121 adopts a chain wheel and chain transmission connection structure.

The automatic welding device 2 of this embodiment includes the second frame 21 that sets up in carrying strutting arrangement 1 both sides, set up the z direction slip subassembly 22 on the second frame 21, with the connecting plate 23 of z direction slip connection along z direction slip subassembly 22, the x direction slip subassembly 24 and the welding wire feeding subassembly 25 of fixed mounting on connecting plate 23, with x direction slip subassembly 24 along the y direction slip subassembly 26 of x direction slip connection, with y direction slip subassembly 26 along the welding subassembly 27 of y direction slip connection, during operation, can realize respectively from z direction, x direction, y direction and follow the fore-and-aft, control, the upper and lower slip of welding subassembly 27 and adjust the welding position, realize accurate welding.

The z-direction sliding assembly 22 of the present embodiment includes a first driving unit and a z-direction sliding rail 221 horizontally disposed between the second frames 21; the first driving unit is fixedly installed on the second rack 21, an output shaft of the first driving unit is in transmission connection with the connecting plate 23, and the first driving unit drives the connecting plate 23 to slide forwards and backwards along z on the z-direction sliding rail 221.

The first driving unit of the embodiment adopts a motor; the output shaft of the first driving unit of this embodiment is in transmission connection with the connecting plate 23 by using a screw.

The x-direction sliding assembly 24 of the present embodiment includes a second driving unit 241 and an x-direction sliding rail 242 fixedly mounted on the connecting plate 23; the second driving unit 241 is fixedly connected with the x-direction sliding rail 242; the output end of the second driving unit 241 is in transmission connection with the y-direction sliding component 26, and the second driving unit 241 drives the y-direction sliding component 26 to slide left and right along x on the x-direction sliding rail 242.

The second driving unit 241 of the present embodiment employs a motor; the output end of the second driving unit 241 of the embodiment is in transmission connection with the y-direction sliding component 26 by adopting screw transmission.

The y-direction sliding assembly 26 of the present embodiment includes a third driving unit 261 and a y-direction sliding rail 262 slidably connected with the x-direction sliding assembly 24; the third driving unit 261 is fixedly connected with the y-direction sliding rail 262; the output end of the third driving unit 261 is in transmission connection with the welding assembly 27, and the third driving unit 261 drives the welding assembly 27 to slide up and down along y on the y-direction sliding rail 242.

The third driving unit 261 of the present embodiment employs a motor; the output end of the third driving unit 261 of this embodiment is in transmission connection with the welding assembly 27 by using a screw.

The welding assembly 27 of the present embodiment includes a slider 271 slidably connected with the x-direction sliding assembly 24, and a welding head 272 rotatably connected with the slider, so as to facilitate adjustment of the welding angle of the welding head 272.

When the door plate and door beam welding mechanism of the embodiment works, the conveying assembly conveys the door plate workpiece to the x-direction limiting assembly to stop one end of the door plate workpiece for x-direction limiting, the lifting driving part drives the supporting plate to lift, the door plate is separated from the conveying assembly and continuously ascends to the supporting plate, the lifting driving part clamps the door plate and door beam, the z-direction positioning assembly pushes against two sides of the door plate and door beam to carry out z-direction limiting, then the automatic welding device welds the door plate and door beam, after the welding of the door plate and door beam is finished, the push plate of the z-direction positioning assembly is retracted to loosen two sides of the door plate and door beam, the lifting driving part drives the supporting plate to descend, the door plate and door beam are placed on the conveying assembly, the limiting rod of the x-direction limiting assembly is lifted, the conveying assembly conveys the door plate to the next station, and the device has simple structure and convenient operation, and realizes full automation of the conveying and welding process of the door plate and the accurate welding of the door plate and the door beam

In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition.

Claims (10)

1. The door plate and door beam welding mechanism is characterized by comprising a conveying supporting device (1) and automatic welding devices (2) fixedly arranged at two ends of the conveying supporting device (1); the conveying support device (1) comprises a first frame (11), a conveying assembly (12), a z-direction positioning assembly (13), a clamping plate assembly (14) and an x-direction limiting assembly (15), wherein the conveying assembly (12), the z-direction positioning assembly (13), the clamping plate assembly (14) and the x-direction limiting assembly (15) are arranged on the first frame (11); the conveying assembly (12) conveys the door plate workpiece to the x-direction limiting assembly (15) along the conveying direction, one end of the door plate workpiece is blocked by the x-direction limiting assembly, the clamping plate assembly (14) supports and clamps the door plate workpiece along the y-direction, the door plate workpiece is separated from the conveying assembly (12), and the z-direction positioning assembly (13) tightly pushes against two sides of the door plate workpiece along the z-direction.

2. The door plate and door beam welding mechanism according to claim 1, wherein the z-direction positioning assembly (13) comprises a push plate unit (131) fixedly installed on one side of the first frame (11) and a second limiting unit (132) fixedly installed on the other side of the first frame (11) opposite to the push plate unit (131); the push plate unit (131) comprises a push plate driving part fixedly installed on the first frame (11) and a push plate part connected with the output end of the push plate driving part, and the push plate driving part drives the push plate part to push the second limiting unit (132) to be close or away.

3. A door panel door beam welding mechanism according to claim 2, characterized in that the second limiting unit (132) comprises a roller.

4. The door panel door beam welding mechanism according to claim 1, wherein the clamping plate assembly (14) comprises a first limiting unit (141) fixedly installed on the first frame (11) and a supporting unit (142) disposed right below the first limiting unit (141); the supporting unit (142) comprises a supporting plate (1422) and a lifting driving part (1421); the second driving unit is fixedly arranged on the first frame (11) below the conveying assembly (12); one end of the supporting plate (1422) is connected with the output end of the lifting driving part (1421), and the lifting driving part (1421) drives the supporting plate (1422) to lift.

5. The door plate and door beam welding mechanism according to claim 1, wherein the x-direction limiting component (15) comprises a limiting rod and a limiting driving component fixedly arranged on the first frame (11); the output shaft of the limit driving assembly is connected with one end of the limit rod to drive the limit rod to descend, and one end of the door plate workpiece conveyed by the conveying assembly (12) along the conveying direction is blocked.

6. A door panel door beam welding mechanism according to claim 1, characterized in that the conveying assembly (12) comprises a conveying unit (121), a conveying drive assembly (122); the conveying unit (121) is rotatably arranged on the first rack (11); the conveying driving assembly (122) is fixedly arranged on the first frame (11), an output shaft of the conveying driving assembly (122) is in transmission connection with the conveying unit (121), and the conveying driving assembly (122) drives the conveying unit (121) to rotate.

7. The door plate and door beam welding mechanism according to claim 1, wherein the automatic welding device (2) comprises a second rack (21) arranged on two sides of the conveying support device (1), a z-direction sliding assembly (22) arranged on the second rack (21), a connecting plate (23) connected with the z-direction sliding assembly (22) in a sliding manner along the z-direction, an x-direction sliding assembly (24) and a welding wire feeding assembly (25) fixedly arranged on the connecting plate (23), a y-direction sliding assembly (26) connected with the x-direction sliding assembly (24) in a sliding manner along the x-direction, and a welding assembly (27) connected with the y-direction sliding assembly (26) in a sliding manner along the y-direction.

8. A door panel door beam welding mechanism according to claim 7, characterized in that the z-direction sliding assembly (22) comprises a first drive unit and a z-direction sliding rail (221) arranged horizontally between the second frames (21); the first driving unit is fixedly arranged on the second frame (21), an output shaft of the first driving unit is in transmission connection with the connecting plate (23), and the first driving unit drives the connecting plate (23) to slide.

9. A door panel door beam welding mechanism according to claim 7, characterized in that the x-direction sliding assembly (24) comprises a second driving unit (241) and an x-direction sliding rail (242) fixedly mounted on the connecting plate (23); the second driving unit (241) is fixedly connected with the x-direction sliding rail (242); the output end of the second driving unit (241) is in transmission connection with the y-direction sliding component (26), and the second driving unit (241) drives the y-direction sliding component (26) to slide.

10. A door panel door beam welding mechanism according to claim 7, characterized in that the y-direction sliding assembly (26) comprises a third driving unit (261) and a y-direction sliding rail (262) in sliding connection with the x-direction sliding assembly (24); the third driving unit (261) is fixedly connected with the y-direction sliding rail (262); the output end of the third driving unit (261) is in transmission connection with the welding assembly (27), and the third driving unit (261) drives the welding assembly (27) to slide.