A main beam support welding feeding device

Abstract

The application discloses a main beam support welding feeding device, which comprises a base, a limiting block, a connecting rod and a connecting rod driving part. The limiting block is connected with the base. A limiting surface on the limiting block is in abutment with a push rod support on the main beam and is located below the push rod support, and is used for limiting rotation of the main beam around its own axis. The connecting rod is rotationally connected with the base, and a positioning driving mechanism is connected with an end of the connecting rod away from the base. The positioning driving mechanism is used for positioning and clamping of the main beam support and is also used for driving the main beam support to move. A fixed end of the connecting rod driving part is connected with the base, and an output end is connected with the connecting rod, and the connecting rod driving part is used for driving the connecting rod to rotate, so as to drive the positioning driving mechanism to move. During feeding, the connecting rod driving part drives the connecting rod to rotate by a preset angle, and the positioning driving mechanism drives the main beam support to be pressed on the main beam after being driven to move to a preset position under the driving of the connecting rod. The application has simple overall structure, small volume and low production cost.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of solar thermal power generation, and particularly relates to a main beam support welding feeding device. BACKGROUND

[0002] Tower type solar thermal power generation is a kind of solar concentrated thermal power generation technology, which needs to build a high central absorption tower on an open ground, a receiver is fixedly installed on the top of the tower, a certain number of heliostats are installed around the tower, sunlight is collected by the heliostats into the cavity of the receiver on the top of the tower to generate high temperature, then steam is generated through a heat exchanger, and the steam drives a steam engine to generate power.

[0003] It is a development trend to adopt automatic welding for mass welding of main beam welding parts, and how to simply and accurately position the main beam welding part to the surface of the main beam is a problem to be solved urgently when welding. SUMMARY

[0004] To solve the above problems, the application provides a main beam support welding feeding device, which comprises:

[0005] A base and a limiting block are connected, a limiting surface on the limiting block is in abutment with a push rod support on the main beam and is located below the push rod support, and is used to limit the rotation of the main beam around its own axis;

[0006] A connecting rod is rotationally connected with the base, one end away from the base is connected with a positioning driving mechanism, the positioning driving mechanism is used for positioning and clamping of the main beam support and is also used for driving the main beam support to move;

[0007] A connecting rod driving part is connected with the base at a fixed end and is connected with the connecting rod at an output end, and is used to drive the connecting rod to rotate to drive the positioning driving mechanism to move; in a feeding state, the connecting rod driving part drives the connecting rod to rotate by a preset angle, and the positioning driving mechanism is driven to move to a preset position toward the limiting block under the driving of the connecting rod, and then the main beam support is driven to be pressed on the main beam.

[0008] In an embodiment, a driven rod is further included, both ends of the driven rod are rotationally connected with the connecting rod and the limiting block respectively, the limiting block is slidingly connected with the base, and the connecting rod drives the limiting block to slide through the driven rod when the connecting rod rotates.

[0009] In an embodiment, a positioning surface is arranged on the main beam support, is in abutment with a support beam piece on the main beam, and is used to realize the axial positioning of the main beam.

[0010] In an embodiment, the connecting rod driving part is a connecting rod air cylinder, a fixed end of the connecting rod air cylinder is rotationally connected with the base, and an output end thereof is rotationally connected with the connecting rod.

[0011] The connecting rod cylinder is located between the driven rod and the base, and the connecting rod is connected with the output end of the connecting rod cylinder, the base, the driven rod and the positioning driving mechanism in sequence.

[0012] In an embodiment, the girder support is a girder positioning structure for positioning the girder.

[0013] In an embodiment, the positioning driving mechanism comprises:

[0014] The fixed seat is fixedly connected with the connecting rod;

[0015] The clamping assembly is used for positioning and clamping the girder support;

[0016] The support driving member is fixedly connected with the fixed seat, and the output end of the support driving member is connected with the clamping assembly for driving the clamping assembly to move.

[0017] In an embodiment, the girder support is installed on the girder for connecting the girder to other structures, wherein the connecting plate in the girder support is used for connecting with the other structures; and the clamping assembly comprises:

[0018] The positioning block is connected with the output end of the support driving member;

[0019] The clamping driving member is fixedly connected with the positioning block, and the output end of the clamping driving member is connected with two clamping members respectively, and the two connecting plates correspond to the two clamping members respectively; the positioning block has two clamping surfaces corresponding to the two clamping members respectively, and the connecting plate is located between the clamping surface and the corresponding clamping member; the clamping driving member is used for driving the clamping member to move towards the clamping surface to clamp the connecting plate.

[0020] The positioning member is connected with at least one of the clamping member and the clamping surface for positioning the connecting plate.

[0021] In an embodiment, the clamping member has a pressing surface on the side facing the clamping surface for clamping the connecting plate in cooperation with the corresponding clamping surface, and the two clamping surfaces and the two pressing surfaces are parallel to each other; and the clamping driving member is used for synchronously driving the two clamping members.

[0022] In an embodiment, the positioning member comprises a plurality of positioning pins, and the positioning pins are sequentially arranged in the corresponding clamping member, the connecting plate and the clamping surface.

[0023] In an embodiment, when the girder support is connected with the girder, the mounting surface on the girder support is attached to the side wall of the girder.

[0024] The elastic member is arranged between the fixed seat and the clamping assembly, and the elastic member is matched when the support driving member drives the clamping assembly to tightly attach the mounting surface to the side wall of the main beam.

[0025] The present application has the following advantages and positive effects compared with the prior art by adopting the above technical scheme:

[0026] (1) When the main beam enters the main beam support welding feeding device provided by the present application, the circumferential position (i.e. the rotation angle around the axis of the main beam) is not positioned, and the circumferential position of the main beam is positioned by abutting the push rod support on the limiting surface of the limiting block. When the connecting rod driving member drives the connecting rod to rotate and the main beam support is pressed on the side wall of the main beam, the relative position between the positioning driving mechanism and the limiting block is fixed, which means that the relative position of the main beam support (positioned by the positioning driving mechanism) and the push rod support is fixed, and thus the relative position (i.e. the included angle between the main beam support and the push rod support) between the main beam support and the push rod support can meet the requirements. Therefore, the main beam support welding feeding device provided by the present application can not only accurately position the main beam support on the side wall of the main beam for subsequent welding of the main beam support and the main beam, but also ensure the circumferential position of the main beam, i.e. ensure that the relative position of the push rod support and the main beam support meets the requirements. The entire main beam support welding feeding device has simple structure, small size and low production cost.

[0027] (2) In an embodiment of the present application, the connecting rod and the limiting block are linked through the driven rod. During the process of driving the connecting rod to rotate and pressing the main beam support on the side wall of the main beam, the connecting rod drives the limiting block to slide through the driven rod, and the limiting block drives the main beam to rotate through the interference with the push rod support (the push rod support abuts on the limiting surface). Therefore, the main beam support welding feeding device in this embodiment can also adjust the circumferential position of the main beam. BRIEF DESCRIPTION OF DRAWINGS

[0028] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The detailed description is made with reference to the accompanying drawings.

[0029] Figure 1 A use schematic view of a main beam support welding feeding device of the present application;

[0030] Figure 2 A use schematic view of a main beam support welding feeding device of the present application;

[0031] Figure 3 A schematic view of a main beam support welding feeding device of the present application;

[0032] Figure 4Figure 1 is a schematic view of a part of a main beam support welding feeding device according to the present application;

[0033] Figure 5 Figure 4 is a schematic view of a positioning driving mechanism according to the present application.

[0034] Legend of reference signs:

[0035] 1: main beam; 2: push rod support; 3: main beam support; 4: tool base; 5: feeding base; 6: main beam support piece; 7: positioning driving mechanism; 8: connecting rod; 9: driven rod; 10: connecting rod cylinder; 11: limiting block; 12: sliding block; 13: connecting rod support piece; 14: driving support piece; 15: sliding support piece; 16: cylinder adapter; 17: fixed seat; 18: positioning block; 19: clamping piece; 20: bidirectional clamping cylinder; 21: positioning pin; 22: support cylinder; 23: spring; 24: support beam piece. DETAILED DESCRIPTION

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, specific embodiments of the present application will be described below with reference to the drawings. Obviously, the drawings in the following description only represent some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings, and other embodiments can also be obtained.

[0037] In order to make the drawing simple, only the parts related to the present application are shown in each drawing, which do not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the parts with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one".

[0038] Reference Figures 1 to 5 The present embodiment provides a main beam support welding feeding device, which comprises a base, a limiting block 11, a connecting rod 8 and a connecting rod driving piece. The limiting block 11 is connected with the base. The limiting surface on the limiting block 11 abuts against the push rod support 2 on the main beam 1 and is located below the push rod support 2, which is used to limit the rotation of the main beam 1 around its own axis, so as to position the circumference of the main beam 1. The connecting rod 8 is rotationally connected with the base, and its end away from the base is connected with the positioning driving mechanism 7. The positioning driving mechanism 7 is used for positioning and clamping the main beam support 3, and is also used for driving the main beam support 3 to move. The fixed end of the connecting rod driving piece is connected with the base, and the output end is connected with the connecting rod 8, which is used to drive the connecting rod 8 to rotate, so as to drive the positioning driving mechanism 7 to move.

[0039] When loading, the connecting rod driving member drives the connecting rod 8 to rotate by a preset angle, and the positioning driving mechanism 7 is driven to move to a preset position under the driving of the connecting rod 8 and then to press the main beam support 3 on the main beam 1.

[0040] The whole main beam support welding loading device has simple overall structure, small volume and low production cost.

[0041] The structure of the embodiment will be described.

[0042] The main beam support welding loading device is used for positioning the main beam support 3 on the main beam 1, facilitating subsequent welding. The process of using the main beam support welding loading device is only one link in the heliostat (including a mirror surface, the main beam 1, a support and the like) assembly process, and the equipment used for completing the whole heliostat assembly is a heliostat assembly equipment, and the main beam support welding loading device is only a part of the structure of the heliostat assembly equipment. In addition, before entering the main beam support welding loading device, the push rod support 2 on the main beam 1 has been installed.

[0043] The base can include two parts, i.e. a tool base 4 and a loading base 5. The tool base 4 can be shared with other structures in the heliostat assembly equipment, and the loading base 5 is only used for the main beam support welding loading device. The structures such as the positioning block 18 and the connecting rod 8 in the main beam support welding loading device are connected with the loading base 5, and the loading base 5 is installed on the tool base 4.

[0044] The main beam support 6 is arranged to support the main beam 1, and the main beam 1 can rotate around its own axis on the main beam support 6. The main beam support 6 is placed on the tool base 4 and can move on the tool base 4. The main beam support 6 has many design modes, and thus its specific structure is not limited. In the embodiment, the main beam support 6 is provided with a U-shaped groove matching the circumferential shape of the main beam 1. The main beam 1 is placed on the U-shaped groove and can rotate around its own axis in the U-shaped groove. The main beam support 6 has a positioning surface, and the main beam 1 is axially positioned by abutting the beam piece 24 on the main beam 1 and the positioning surface. Specifically, the positioning surface can be a side surface of the main beam support 6, and the opening of one end of the U-shaped groove in the length direction is arranged on the side surface. The main beam 1 is placed in the U-shaped groove, and the side surface of the beam piece 24 and the side surface of the main beam support 6, i.e. the positioning surface, are tightly attached to axially position the main beam 1.

[0045] The connecting rod 8 is rotationally connected with the loading base 5 through a connecting rod support 13, as shown in Figure 3 The connecting rod support 13 is fixedly connected with the loading base 5, and the upper part of the connecting rod support 13 is rotationally connected with the connecting rod 8. Figure 4As shown, a drive support 14 is fixedly connected to the loading base 5. The connecting rod drive can be a connecting rod cylinder 10. The fixed end of the connecting rod cylinder 10 is rotatably connected to the drive support 14. The output end of the connecting rod cylinder 10 can be rotatably connected to the connecting rod 8 through the cylinder adapter 16.

[0046] The main beam 1 is placed onto the main beam support welding and feeding device from top to bottom. Typically, when the main beam 1 is placed onto the main beam support welding and feeding device, the angle of the push rod support 2 will be slightly downward compared to the angle during positioning. Thus, when the main beam 1 is fully supported by the main beam support 6, the push rod support 2 will inevitably abut against the limiting surface of the limiting block 11 (during the process, the limiting surface of the limiting block 11 may push the push rod support 2 to rotate upward as it descends, specifically achieved by the rotation of the main beam 1's circular tube within the U-shaped groove).

[0047] Furthermore, a driven rod 9 can be provided between the limiting block 11 and the connecting rod 8. The two ends of the driven rod 9 are rotatably connected to the connecting rod 8 and the limiting block 11, respectively. The limiting block 11 is slidably connected to the feeding base 5. When the connecting rod 8 rotates, it drives the limiting block 11 to slide through the driven rod 9. Thus, when the main beam 1 is stably supported by the main beam support 6, as... Figure 2 As shown, the limiting block 11 can slide away from the main beam 1, so that the limiting surface on the limiting block 11 can continue to push the push rod support 2 to rotate upward.

[0048] It should be noted that at this point, when the limiting block 11 slides to the designated position and its limiting surface abuts against the push rod support 2, the angle of the push rod support 2 is the angle required for positioning. Furthermore, when the main beam 1 is placed on the main beam support welding and feeding device, the angle of the push rod support 2 is slightly downward compared to the angle at which it abuts against the limiting surface of the unslidable limiting block 11. Thus, the push rod support 1 will be pushed upward by the limiting block 11 at a certain angle during the placement of the main beam 1 onto the main beam support 6, and will also be pushed upward by a certain angle during the sliding of the limiting block 11. This double protection ensures that the push rod support 2 can ultimately abut against the limiting surface of the limiting block 11, completing the positioning.

[0049] Specifically, such as Figure 3 As shown, a sliding support 15 can be fixedly connected to the feeding base 5. A groove is provided on the sliding support 15, and a slider 12 is connected below the limiting block 11, with the slider 12 slidably connected within the groove. (See reference...) Figure 4 The driven rod 9 can be rotatably connected to the slider 12, thereby achieving a rotatable connection with the limit block 11. The connecting rod cylinder 10 is located between the driven rod 9 and the loading base 5, and the connecting rod 8 is sequentially connected to the output end of the connecting rod cylinder 10, the connecting rod support 13, the driven rod 9, and the positioning drive mechanism 7.

[0050] Please refer to the following: Figure 5The positioning driving mechanism 7 comprises a fixed seat 17, a clamping assembly and a support driving member. The fixed seat 17 is fixedly connected with the connecting rod 8, and the clamping assembly is used for positioning and clamping the girder support 3. The fixed end of the support driving member is connected with the fixed seat 17, and the output end is connected with the clamping assembly, and is used for driving the clamping assembly to move.

[0051] The girder support 3 is installed on the girder 1 and is used for connecting the girder 1 to other structures, wherein the girder support 3 comprises a connecting plate and an arc-shaped plate, the arc-shaped plate is connected with the side wall of the girder 1, and the connecting plate is connected with the other structures.

[0052] The clamping assembly comprises a positioning block 18, a clamping driving member and a positioning member. The positioning block 18 is connected with the output end of the support driving member and is driven by the support driving member. The clamping driving member can adopt a bidirectional clamping cylinder 20, the bidirectional clamping cylinder 20 is fixed on the lower surface of the positioning block 18, two output ends are respectively connected with two clamping members 19, and the two clamping members 19 are respectively corresponding to the two connecting plates. The positioning block 18 has two clamping surfaces corresponding to the two clamping members 19 respectively, and the connecting plate is located between the clamping surface and the corresponding clamping member 19. The clamping member 19 has a pressing surface on the side facing the clamping surface, which is used for clamping the connecting plate in cooperation with the corresponding clamping surface, and the two clamping surfaces and the two pressing surfaces are parallel to each other. The bidirectional clamping cylinder 20 synchronously drives the two clamping members 19 to move towards the clamping surface so as to clamp the connecting plate.

[0053] The positioning member comprises a plurality of positioning pins 21, the positioning pins 21 are sequentially arranged through the corresponding clamping members 19, the connecting plates and the clamping surfaces, each connecting plate corresponds to a plurality of positioning pins 21, so that the positioning of the connecting plate is realized, and the positioning of the girder support 3 on the positioning driving mechanism 7 is realized. Further, the end portion of the positioning pin 21 extending from the side of the clamping member 19 can be provided with a protruding block, or the positioning pin 21 is directly fixedly connected with the clamping member 19, so that when the girder support 3 is welded to the girder 1, the bidirectional clamping cylinder 20 drives the clamping member 19 to move away from the clamping surface, and the positioning pin 21 can be taken away at the same time.

[0054] The support driving member can adopt a support cylinder 22, the support cylinder 22 is arranged on the side of the fixed seat 17 away from the positioning block 18, the fixed end of the support cylinder 22 is connected with the fixed seat 17, and the output end is connected with the positioning block 18 through the fixed seat 17.

[0055] When the support cylinder 22 drives the main beam support 3 to the position, the mounting surface on the main beam support 3 and the side wall of the main beam 1 can not be completely fitted, and there can be a small gap between the mounting surface and the side wall of the main beam 1. Therefore, an elastic member can be arranged between the fixing seat 17 and the positioning block 18 to eliminate the gap. Specifically, the elastic member can include a spring 23 and a spring guide column, the spring guide column is connected with the fixing seat 17, is axially slidingly connected with the positioning block 18 by penetrating the positioning block 18, and the spring 23 is sleeved on the spring guide column and located between the fixing seat 17 and the positioning block 18; in the embodiment, the spring guide column can be a bolt. Of course, in other embodiments, the elastic member can adopt other structures, such as an elastic column.

[0056] The working process of the main beam support welding feeding device provided in the embodiment includes:

[0057] Step one: feeding the main beam 1 on which the push rod support 2 has been welded, and the push rod support 2 abuts against the limiting surface of the limiting block 11;

[0058] Step two: feeding the main beam support 3 to the positioning and driving mechanism 7, preliminarily positioning the main beam support 3 by the positioning pin 21, and driving the clamping member 19 to move until the clamping surface is matched to realize the final positioning of the main beam support 3 on the positioning and driving mechanism 7 by the bidirectional clamping cylinder 20;

[0059] Step three: driving the connecting rod cylinder 10 to push the connecting rod 8 to rotate the connecting rod 8, so as to rotate the positioning and driving mechanism 7 until the arc-shaped plate on the main beam support 3 is aligned with the side wall of the circular tube of the main beam 1; at the same time, the rotation of the connecting rod 8 pushes the driven rod 9 to move, the driven rod 9 pushes the limiting block 11 to move through the sliding block 12, the limiting block 11 in turn drives the main beam 1 to rotate by pushing the push rod support 2, so that the relative position of the push rod support 2 and the main beam support 3 meets the preset requirement.

[0060] Step four: driving by the support cylinder 22 to push the clamping assembly to the main beam 1 direction until the mounting surface on the arc-shaped plate of the main beam support 3 is fitted with the surface of the circular tube of the main beam 1 (that is, the side wall of the main beam 1), and the four springs 23 between the fixing seat 17 and the positioning block 18 can ensure that the fitting is compact; in this process, if the movement of the limiting block 11 in the previous step makes the first limiting surface not abut against the side wall of the main beam 1, the main beam 1 is also pushed to abut against the first limiting surface of the side wall in this process;

[0061] Step five: spot welding the connection between the arc-shaped plate on the main beam support 3 and the circular tube of the main beam 1;

[0062] Step six: driving the clamping member 19 to loosen the connecting plate on the main beam support 3 by the bidirectional clamping cylinder 20, and returning the support cylinder 22 and the connecting rod cylinder 10 to the original position.

[0063] The main beam support welding feeding device provided by the embodiment has at least the following advantages.

[0064] ① Through the driving of the connecting rod cylinder 10, the product rotation positioning (rotation of the main beam 1) and the component feeding positioning (the center of the arc-shaped plate on the main beam support 3 is aligned with the center of the main beam 1) can be realized at the same time, and the angle positioning of the push rod support 2 and the main beam support 3 can be realized.

[0065] ② After the bidirectional clamping cylinder 20 clamps the main beam support 3, the spacing and parallelism positioning of the two main beam supports 3 can be realized. The whole positioning driving mechanism 7 can be connected to the automatic control program to complete the automatic operation, and the feeding operation efficiency is high.

[0066] ③ The spring 23 between the fixed seat 17 and the positioning block 18 can realize the compact fit of the mounting surface (a circular arc surface) on the arc-shaped plate of the main beam support 3 and the side wall (a circular arc surface) of the main beam 1, and ensure the welding quality.

[0067] The main beam support welding feeding device provided by the embodiment can effectively improve the feeding efficiency and positioning accuracy of the main beam support 3, thereby reducing the welding time of the main beam support 3 and improving the welding quality of the main beam support 3, and further improving the welding efficiency of the main beam support 3 and the welding efficiency of the whole main beam welding piece.

[0068] The main beam support welding feeding device provided by the embodiment saves the layout space of the site, saves the use amount of the spot welding robot, and thereby saves the welding processing cost of the main beam 1.

[0069] The embodiments of the application are described in detail above in combination with the drawings, but the application is not limited to the above embodiments. Even if various changes are made to the application, if the changes fall within the scope of the claims of the application and equivalent technologies thereof, they still fall within the protection scope of the application.

Claims

1. A main beam support welding and feeding device, characterized in that, Before the main beam enters the main beam support welding and feeding device, the push rod supports on the main beam have already been installed; the main beam support welding and feeding device includes: The base and the limiting block are connected to the base. The limiting surface on the limiting block abuts against the push rod support on the main beam and is located below the push rod support, which is used to limit the rotation of the main beam around its own axis. A connecting rod is rotatably connected to the base, and a positioning drive mechanism is connected to the end of the connecting rod away from the base. The positioning drive mechanism is used for positioning and clamping the main beam support, and also for driving the main beam support to move. The connecting rod drive component has a fixed end connected to the base and an output end connected to the connecting rod. It is used to drive the connecting rod to rotate, thereby moving the positioning drive mechanism. In the feeding state, the connecting rod drive component drives the connecting rod to rotate by a preset angle. Under the drive of the connecting rod, the positioning drive mechanism moves toward the limiting block to a preset position and then drives the main beam support to press against the side wall of the main beam.

2. The main beam support welding and feeding device according to claim 1, characterized in that, It also includes a driven rod, the two ends of which are rotatably connected to the connecting rod and the limiting block, respectively. The limiting block is slidably connected to the base. When the connecting rod rotates, it drives the limiting block to slide through the driven rod.

3. The main beam support welding and feeding device according to claim 2, characterized in that, The connecting rod drive component is a connecting rod cylinder, the fixed end of which is rotatably connected to the base, and its output end is rotatably connected to the connecting rod. The connecting rod cylinder is located between the driven rod and the base, and the connecting rod is sequentially connected to the output end of the connecting rod cylinder, the base, the driven rod and the positioning drive mechanism.

4. The main beam support welding and feeding device according to claim 2, characterized in that, It also includes a main beam support member, which supports the main beam and allows the main beam to rotate about its own axis.

5. The main beam support welding and feeding device according to claim 4, characterized in that, The main beam support is provided with a positioning surface for abutting against the support beam piece on the main beam to achieve axial positioning of the main beam.

6. The main beam support welding and feeding device according to claim 1, characterized in that, The positioning drive mechanism includes: The fixed base is fixedly connected to the connecting rod; Clamping assembly for positioning and clamping the main beam support; A support drive is fixedly connected to the fixed base, and the output end of the support drive is connected to the clamping assembly for driving the clamping assembly to move.

7. The main beam support welding and feeding device according to claim 6, characterized in that, The main beam support is installed on the main beam and is used to connect the main beam to other structures, wherein the connecting plate in the main beam support is used to connect with the other structures; the clamping assembly includes: The positioning block is connected to the output end of the support drive component; A clamping drive is fixedly connected to the positioning block. The output end of the clamping drive is connected to two clamping members, and the two connecting members correspond to the two connecting plates respectively. The positioning block has two clamping surfaces that correspond to the two clamping members respectively. The connecting plate is located between the clamping surfaces and the corresponding clamping members. The clamping drive is used to drive the clamping members to move toward the clamping surfaces to clamp the connecting plate. A positioning element, connected to at least one of the clamping element and the clamping surface, is used to position the connecting plate.

8. The main beam support welding and feeding device according to claim 7, characterized in that, The clamping member has a pressing surface on the side facing the clamping surface, which is used to clamp the connecting plate in conjunction with the corresponding clamping surface. The two clamping surfaces and the two pressing surfaces are parallel to each other. The clamping drive member is used to synchronously drive the two clamping members.

9. The main beam support welding and feeding device according to claim 7, characterized in that, The positioning element includes multiple positioning pins, which are sequentially inserted through the corresponding clamping element, the connecting plate, and the clamping surface.

10. The main beam support welding and feeding device according to claim 6, characterized in that, When the main beam support is connected to the main beam, the mounting surface on the main beam support is in contact with the side wall of the main beam. An elastic element is provided between the fixed base and the clamping assembly. When the support drive unit drives the clamping assembly, it cooperates with the elastic element to tightly press the mounting surface against the side wall of the main beam.

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