A truss base welding tool

Abstract

The utility model discloses a truss base welding frock, including operation platform, the top of operation platform is installed for the rotating component of bearing base, the top of rotating component is installed for the clamping assembly of fixed base, the top of operation platform still installs the compression assembly and the mobile assembly of control welding torch position, the rotating component includes the first motor of pegging in operation platform bottom, the utility model discloses through the setting of rotating component, starts the first motor rotation and drives the rotating lever to rotate in operation platform top, and the rotating lever rotates simultaneously and drives the rotation of carousel, and the carousel rotates indirectly and drives the clamping assembly, truss and base to rotate, and another weld of truss and base rotates to the direction of alignment welding torch and continues to carry out the welding work, and can complete the welding work of a plurality of welds just through the step of repeated rotation and welding, need not to hold fixedly to truss and base for many times, improves the welding efficiency of truss base welding frock.

Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, specifically to a welding fixture for a truss base. Background Technology

[0002] A truss is a geometrically invariant structural system composed of straight bars connected by hinged or rigid joints. In the production and processing of truss structures, the base serves as the supporting foundation of the truss, and its welding quality directly affects the overall structural stability and service life of the truss. Therefore, a special truss base welding fixture is required for welding.

[0003] Existing truss base welding fixtures typically use clamping components to fix the truss and base in a designated position, and then use a movable welding torch to weld the joint between the truss and base. However, the joint between the truss and base usually has four weld seams, and the angle of the truss and base needs to be adjusted after each weld seam is completed. The entire welding process requires manual clamping and fixing of the truss and base multiple times, resulting in low welding efficiency for the truss base. Therefore, we need to propose a truss base welding fixture. Utility Model Content

[0004] The purpose of this utility model is to provide a welding fixture for a truss base. Through the clamping assembly, the base is placed on top of a turntable and between two sets of clamping plates. Activating two sets of first electric actuators moves the two sets of clamping plates closer together or further apart, shortening the distance between them to achieve a clamping and fixing effect on the base. The truss is then placed at the welding point on top of the base, and a rotatable clamping assembly presses and fixes the truss to the top of the base. The position of the welding torch is adjusted by moving the assembly to align it with one weld seam for welding. After welding, the welding torch automatically resets. Then, through the rotation assembly, a first motor is activated, driving a rotating rod to rotate on top of the operating table. The rotation of the rotating rod simultaneously drives the turntable to rotate, indirectly causing the truss and base to rotate. This rotates the other weld seam of the truss and base to align with the welding torch for continued welding, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a truss base welding fixture, including an operating table, a rotating assembly for supporting the base mounted on the top of the operating table, a clamping assembly for fixing the base mounted on the top of the rotating assembly, and a pressing assembly and a moving assembly for controlling the position of the welding torch mounted on the top of the operating table; the rotating assembly includes a first motor bolted to the bottom of the operating table, a rotating rod keyed to the output shaft of the first motor, the rotating rod rotatably extending to the top of the operating table through a bearing, and a turntable fixedly mounted on the top of the rotating rod; the clamping assembly includes two sets of support plates symmetrically fixedly mounted on the top of the turntable, a set of first electric actuators bolted to the opposite sides of the two sets of support plates, and a set of clamping plates bolted to the output ends of the two sets of first electric actuators.

[0006] Preferably, the bottom of the two sets of clamping plates is movably fitted with the top of the turntable, and a set of rubber pads is fixedly installed on the clamping surface of each set of clamping plates.

[0007] Preferably, the clamping assembly includes a support frame, with a second electric push rod bolted to the top of the inner side of the support frame, and a pressure plate rotatably mounted on the output end of the second electric push rod.

[0008] Preferably, the movable component includes an electric slide table bolted to the top of the operating table, a lifting frame for adjusting the height of the welding torch is installed on one side of the electric slide table, a third electric push rod is bolted to the inside of the lifting frame, and a moving rod for adjusting the lateral position of the welding torch is installed at one end of the third electric push rod.

[0009] Preferably, one end of the moving rod extends through to the outside of the lifting frame, and a fixed frame is fixedly connected to one end of the moving rod. A lead screw is rotatably installed through the inner side wall of the fixed frame. A second motor is bolted to one end of the fixed frame through a mounting plate, and the output shaft of the second motor is keyed to one end of the lead screw.

[0010] Preferably, a movable block is threadedly connected to the middle of the lead screw, and an mounting plate is fixedly installed at the bottom of the movable block via a connecting rod, with the welding torch mounted at one end of the mounting plate.

[0011] Preferably, two sets of sliding rods are fixedly installed on the inner side wall of the fixed frame, and the two ends of the moving block are respectively slidably fitted onto the outer arc surface of the two sets of sliding rods.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes a rotating assembly to activate a first motor, which in turn rotates a rotating rod on the top of the worktable. Simultaneously, the rotating rod rotates a turntable, which in turn indirectly rotates the clamping assembly, truss, and base. This allows the other weld seam of the truss and base to be aligned with the welding torch for continued welding. Repeating this rotation and welding process completes the welding of multiple seams, eliminating the need for repeated clamping and fixing of the truss and base, thus improving the welding efficiency of the frame and base.

[0014] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the installation structure of the clamping assembly of this utility model;

[0017] Figure 3 This is a schematic diagram of the installation structure of the clamping assembly of this utility model;

[0018] Figure 4 This is an exploded view of the rotating component of this utility model;

[0019] Figure 5 This is an exploded view of the mobile component of this utility model.

[0020] In the diagram: 1. Operating table; 2. Rotating assembly; 21. First motor; 22. Rotating rod; 23. Turntable; 3. Clamping assembly; 31. Support plate; 32. First electric actuator; 33. Clamping plate; 4. Pressing assembly; 41. Support frame; 42. Second electric actuator; 43. Pressure plate; 5. Moving assembly; 51. Electric slide table; 52. Lifting frame; 53. Third electric actuator; 54. Moving rod; 55. Fixed frame; 56. Lead screw; 57. Second motor; 58. Moving block; 59. Slide rod; 6. Connecting rod; 7. Mounting plate; 8. Welding torch. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5 This utility model provides a welding fixture for a truss base, including an operating table 1. A rotating assembly 2 for supporting the base is installed on the top of the operating table 1. A clamping assembly 3 for fixing the base is installed on the top of the rotating assembly 2. A pressing assembly 4 and a moving assembly 5 for controlling the position of the welding torch 8 are also installed on the top of the operating table 1. The rotating assembly 2 includes a first motor 21 bolted to the bottom of the operating table 1. The output shaft of the first motor 21 is keyed to a rotating rod 22. The rotating rod 22 passes through the top of the operating table 1 through a bearing. A turntable 23 is fixedly installed on the top of the rotating rod 22. The clamping assembly 3 includes two sets of support plates 31 symmetrically fixedly installed on the top of the turntable 23. A set of first electric actuators 32 are bolted to the opposite sides of the two sets of support plates 31. A set of clamping plates 33 are bolted to the output ends of the two sets of first electric actuators 32.

[0023] In use, by setting the clamping component 3, the base is placed on top of the turntable 23 and between the two sets of clamping plates 33. Activating the two sets of first electric actuators 32 moves the two sets of clamping plates 33 closer together or further apart, shortening the distance between the two sets of clamping plates 33 to achieve the effect of clamping and fixing the base. Then, the truss is placed at the welding point on top of the base, and the rotatable clamping component 4 is used to press and fix the truss to the top of the base, thus achieving the fixing effect of the truss base before welding. The position of the welding gun 8 is adjusted by moving the component 5 to align it with one of the weld seams. After welding, the welding torch 8 automatically resets. Then, through the setting of the rotating component 2, the first motor 21 is started to rotate, driving the rotating rod 22 to rotate on the top of the operating table 1. The rotating rod 22 rotates at the same time, driving the turntable 23 to rotate. The rotation of the turntable 23 indirectly drives the truss and the base to rotate, so that the other weld seam of the truss and the base is rotated to be aligned with the direction of the welding torch 8 and the welding work can continue. By repeating the steps of rotation and welding, the welding work of multiple weld seams can be completed. There is no need to clamp and fix the truss and the base multiple times, which improves the welding efficiency of the truss and base welding fixture.

[0024] The bottom of the two sets of clamping plates 33 is in contact with the top of the turntable 23, and a set of rubber pads is fixedly installed on the clamping surface of the two sets of clamping plates 33. The bottom of the two sets of clamping plates 33 is in contact with the top of the turntable 23 to ensure the stability of the movement of the two sets of clamping plates 33 and to prevent the clamping plates 33 from tilting. The setting of the rubber pads not only enhances the clamping friction, but also avoids workpiece damage caused by rigid contact between the clamping plates 33 and the base.

[0025] The clamping assembly 4 includes a support frame 41. A second electric actuator 42 is bolted to the top of the inner side of the support frame 41. A pressure plate 43 is rotatably mounted on the output end of the second electric actuator 42. By utilizing the connection between the support frame, the second electric actuator 42, and the pressure plate 43, the second electric actuator 42 is activated to drive the pressure plate 43 to move downward, so that the bottom of the pressure plate 43 abuts against the top of the truss, thereby achieving the effect of clamping the truss to the top of the base. Through the horizontal rotatable connection between the pressure plate 43 and the output end of the second electric actuator 42, when the turntable 23 rotates, the pressure plate 43 can rotate accordingly, ensuring that the truss and the base can rotate under the condition of constant clamping.

[0026] The movable component 5 includes an electric slide 51 bolted to the top of the operating table 1. A lifting frame 52 for adjusting the height of the welding torch 8 is installed on one side of the electric slide 51. One end of a moving rod 54 extends through to the outside of the lifting frame 52, and a fixed frame 55 is fixedly connected to one end of the moving rod 54. A lead screw 56 is rotatably mounted through the inner wall of the fixed frame 55. A second motor 57 is bolted to one end of the fixed frame 55 via a mounting plate 7. The output shaft of the second motor 57 is keyed to one end of the lead screw 56. A moving block 58 is threaded to the middle of the lead screw 56. A mounting plate 7 is fixedly mounted to the bottom of the moving block 58 via a connecting rod 6. The welding torch 8 is mounted on one end of the mounting plate 7. The electric slide table 51 is a linear slide table, which is fixed to the top surface of the operating table 1 by bolts. Its sliding direction is consistent with the length direction of the operating table 1. When the electric slide table 51 is started, the lifting frame 52 moves up and down, which can indirectly drive the welding torch 8 to move up and down, thereby achieving the effect of adjusting the height of the welding torch 8. A third electric push rod 53 is bolted to the inside of the lifting frame 52. One end of the third electric push rod 53 is equipped with a moving rod 54 for adjusting the lateral position of the welding torch 8. When the third electric push rod 53 is started, the moving rod 54 moves left and right, which indirectly drives the welding torch 8 to move left and right in the horizontal direction. Through height adjustment and left and right adjustment, the welding end of the welding torch 8 is aligned with the weld.

[0027] The second motor 57 is started and rotated clockwise or counterclockwise, which drives the lead screw 56 to rotate inside the fixed frame 55. While the lead screw 56 is rotating, it drives the moving block 58 to move back and forth. As the moving block 58 moves, it drives the welding gun 8 to move along the weld seam through the connecting rod 6 and the mounting plate 7. The welding gun 8 is started to achieve the effect of welding one of the weld seams of the truss and the base. After the welding is completed, the welding gun 8 is reset to avoid the equipment being damaged by touching the welding gun 8 when the truss and the base are adjusted in angle.

[0028] Two sets of slide rods 59 are fixedly installed on the inner side wall of the fixed frame 55. The two ends of the moving block 58 are respectively slidably fitted onto the outer arc surface of the two sets of slide rods 59. With the setting of the two sets of slide rods 59, the moving block 58 moves only along the outer arc surface of the slide rods 59 when it moves, avoiding the moving block 58 from tilting and rotating, and indirectly improving the stability of the welding torch 8 when it moves and welds.

[0029] It is worth noting that the first motor 21 needs to be a servo motor with high rotational angle accuracy, the second motor 57 should be a stepper motor with high displacement accuracy, and the first electric actuator 32, the second electric actuator 42, and the third electric actuator 53 should be selected according to the specific usage parameters.

[0030] In practical use: Place the base to be welded on top of the turntable 23, start the first electric actuator 32, and the two sets of clamping plates 33 move towards each other until the rubber pads are in close contact with both sides of the base to complete the horizontal clamping. Place the truss at the welding point on top of the base, start the second electric actuator 42, and the pressure plate 43 moves downward to press the truss tightly against the top of the base to complete the vertical clamping. Adjust the height of the welding end of the welding gun 8 and its left and right position respectively by the electric slide 51 and the third electric actuator in the moving assembly 5 so that the welding end of the welding gun 8 is on the weld. Start the second motor 57 to indirectly drive the welding gun 8 to move along the weld. Start the welding gun 8 to achieve the welding effect. During the welding process, if it is necessary to adjust the welding position of the base and the truss, first reset the welding gun 8, start the first motor 21, drive the turntable 23 to rotate the base and the truss to the target angle, and continue welding. After welding is completed, turn off each motor and electric actuator in sequence, loosen the pressure plate 43 and the clamping plate 33, take out the welded truss base, clean the surface of the tooling, and then proceed to the next operation.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding fixture for a truss base, characterized in that: The system includes an operating table (1), a rotating assembly (2) for supporting the base is mounted on the top of the operating table (1), a clamping assembly (3) for fixing the base is mounted on the top of the rotating assembly (2), and a pressing assembly (4) and a moving assembly (5) for controlling the position of the welding torch (8) are also mounted on the top of the operating table (1). The rotating assembly (2) includes a first motor (21) bolted to the bottom of the operating table (1). The output shaft of the first motor (21) is keyed to a rotating rod (22). The rotating rod (22) is rotatably extended through the bearing to the top of the operating table (1), and a turntable (23) is fixedly installed on the top of the rotating rod (22). The clamping assembly (3) includes two sets of support plates (31) symmetrically fixedly installed on the top of the turntable (23). A set of first electric push rods (32) are bolted to the opposite sides of the two sets of support plates (31). A set of clamping plates (33) are bolted to the output ends of the two sets of first electric push rods (32).

2. The truss base welding fixture according to claim 1, characterized in that: The bottom of the two sets of clamping plates (33) is movably fitted with the top of the turntable (23), and a set of rubber pads is fixedly installed on the clamping surface of the two sets of clamping plates (33).

3. The truss base welding fixture according to claim 1, characterized in that: The clamping assembly (4) includes a support frame (41), a second electric push rod (42) is bolted to the top of the inner side of the support frame (41), and a pressure plate (43) is rotatably installed at the output end of the second electric push rod (42).

4. The truss base welding fixture according to claim 1, characterized in that: The moving component (5) includes an electric slide (51) bolted to the top of the operating table (1), a lifting frame (52) for adjusting the height of the welding torch (8) is installed on one side of the electric slide (51), a third electric push rod (53) is bolted to the inside of the lifting frame (52), and a moving rod (54) for adjusting the lateral position of the welding torch (8) is installed at one end of the third electric push rod (53).

5. The truss base welding fixture according to claim 4, characterized in that: One end of the moving rod (54) extends through to the outside of the lifting frame (52), and a fixed frame (55) is fixedly connected to one end of the moving rod (54). A lead screw (56) is rotatably installed through the inner side wall of the fixed frame (55). A second motor (57) is bolted to one end of the fixed frame (55) through a mounting plate. The output shaft of the second motor (57) is keyed to one end of the lead screw (56).

6. The truss base welding fixture according to claim 5, characterized in that: The middle part of the lead screw (56) is threaded with a moving block (58), and the bottom of the moving block (58) is fixedly mounted with a mounting plate (7) via a connecting rod (6). The welding gun (8) is mounted on one end of the mounting plate (7).

7. The truss base welding fixture according to claim 6, characterized in that: Two sets of slide rods (59) are fixedly installed on the inner side wall of the fixed frame (55), and the two ends of the moving block (58) are respectively slidably fitted onto the outer arc surface of the two sets of slide rods (59).

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