Welding equipment for assembling high-strength clamp

Abstract

The invention discloses welding equipment for assembling a high-strength clamp, and belongs to the technical field of welding, the welding equipment comprises a welding tail end seat mounted on a multi-degree-of-freedom mechanical arm, one end face of the welding tail end seat is provided with a plasma welding device, and the other end face of the welding tail end seat is provided with an angle steel arrangement material seat; side control rotating shafts are rotationally arranged on the two sides of the end of the angle steel arrangement material base, rocker arm bases are arranged on the side control rotating shafts, rocker arm control pieces for controlling the rocker arm bases to rotate are arranged in the welding tail end base, and spot welding devices for pre-fixing angle steel are arranged on the rocker arm bases. Through the integrated angle steel arrangement material base, the servo-driven conveying belt and the triangular pressing arrangement plate, automatic, neat and one-by-one conveying of angle steel is achieved, seamless connection with a welding robot is achieved, the two originally separated steps are integrated into a continuous automatic process, the production takt time is remarkably shortened, and the production efficiency is improved. And the comprehensive efficiency of the whole equipment is improved.

Description

Technical Field

[0001] This invention relates to the field of welding technology, and in particular to a welding device for assembling high-strength fixtures. Background Technology

[0002] The core of high-strength fixtures lies in providing enormous, stable, and reliable clamping force to cope with harsh scenarios such as heavy workpiece processing, high-precision assembly, and large-structure welding. They can generate clamping forces of several tons or even tens of tons, ensuring that the workpiece remains motionless during heavy cutting, stamping, or testing. This places extremely high demands on the clamping strength of the fixture. In this case, to ensure clamping strength, angle steel is often welded to the right-angle bends of the fixture to improve the connection strength. Currently, the welding method mainly involves technicians manually welding the angle steel to the fixture using a welding torch. This welding method places extremely high demands on the welding skills of technicians on fixtures that require connection strength. Therefore, welding robots are often used for operation. However, when welding robots are welding, the feeding of angle steel still requires manual feeding or auxiliary processing, which seriously restricts the welding efficiency of the robot. Based on this, a welding equipment for assembling high-strength fixtures is proposed. Summary of the Invention

[0003] The purpose of this invention is to solve the problem that in the existing technology, angle steel is manually welded to the fixture by technicians using a welding gun. This welding method requires extremely high welding skills from technicians, especially when the fixture needs to be connected to a high strength. Therefore, welding robots are often used for this purpose. However, in current welding robots, the angle steel still needs to be fed or processed manually, which seriously restricts the welding efficiency of the robot. Therefore, this invention proposes a welding device for assembling high-strength fixtures.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A welding device for assembling high-strength fixtures includes a welding end seat mounted on a multi-degree-of-freedom robotic arm. One end face of the welding end seat is provided with a plasma welding device, and the other end face of the welding end seat is provided with an angle steel arranging material seat. Side control shafts are rotatably provided on both sides of the end of the angle steel arranging material seat. Rocker arm seats are provided on the side control shafts. A rocker arm control component for controlling the rotation of the rocker arm seats is provided inside the welding end seat. A spot welding device for pre-fixing angle steel is provided on the rocker arm seats.

[0006] The angle steel arranging material seat is connected to a pressing and conveying flip cover by a rotating locking fastener. The pressing and conveying flip cover is connected to a conveyor belt by a servo control device. The conveyor belt is equipped with arranging conveyors that transport the angle steel one by one.

[0007] As a preferred embodiment, the arrangement conveyor includes triangular pressing arrangement plates evenly distributed on the conveyor belt. The triangular pressing arrangement plates are connected to the outer wall of the conveyor belt through elastic traction members on both sides. The outer wall of the conveyor belt is provided with a movable traction port adapted to the elastic traction member.

[0008] As a preferred embodiment, the servo control component includes a servo control motor mounted on the pressing and conveying flip cover, with pulleys at both ends of the conveyor belt. The pulleys are connected to the inner wall of the pressing and conveying flip cover via axles, and the output end of the servo control motor is fixedly connected to the axle on one side.

[0009] As a preferred embodiment, the rotating locking fastener includes a fixed ear plate disposed on the angle steel arranging material seat, the pressing conveying flip cover is connected to the fixed ear plate through connecting shafts at both ends, and the other end of the pressing conveying flip cover is locked to the side wall of the angle steel arranging material seat through a snap fastener.

[0010] As a preferred embodiment, the rocker arm control component includes a rocker arm gear fixedly mounted on the side control shaft, an electrically controlled cylinder is provided in the welding end seat, a U-shaped push rod is fixedly connected to the output end of the electrically controlled cylinder, and the end of the U-shaped push rod has a toothed groove that meshes with the rocker arm gear.

[0011] As a preferred embodiment, the spot welding device includes a spot welding gun, and a pneumatic push rod is inclinedly arranged on the rocker arm base. The spot welding gun is installed at the output end of the pneumatic push rod and is moved by the pneumatic push rod.

[0012] As a preferred embodiment, the angle steel arrangement seat is provided with a limiting slide bar for restricting the angle steel.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. This invention achieves automatic, neat, and sequential conveying of angle steel by integrating an angle steel arrangement base, a servo-driven conveyor belt, and a triangular pressing arrangement plate. It also seamlessly connects with a welding robot, integrating the originally separate two steps into a continuous automated process, significantly reducing production cycle time and improving the overall efficiency of the equipment.

[0015] 2. This invention employs a process of spot welding for pre-fixation and plasma welding for final welding. Spot welding quickly and precisely fixes the angle steel in place, preventing displacement during subsequent welding and laying a solid foundation for high-quality full-seam welding. The triangular pressing and arranging plate at the end of the conveying process can tightly press the angle steel onto the welding surface of the fixture, ensuring good fit between the workpieces. This is a key prerequisite for obtaining a strong weld and effectively avoids problems such as incomplete welding and weak welding caused by gaps. Attached Figure Description

[0016] Figure 1This is a three-dimensional structural diagram of a welding device for assembling high-strength fixtures proposed in this invention;

[0017] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0018] Figure 3 This is a schematic diagram of the combined structure of the angle steel arrangement material seat and the pressing and conveying flip cover in a high-strength fixture assembly welding equipment proposed in this invention;

[0019] Figure 4 This is a schematic diagram of the installation structure at the conveyor belt in a welding equipment for assembling high-strength fixtures proposed in this invention;

[0020] Figure 5 This is a schematic diagram of the rocker arm control component in a high-strength fixture assembly welding equipment proposed in this invention;

[0021] Figure 6 This is a schematic diagram of the cross-sectional structure of the conveyor belt in a high-strength fixture assembly welding device proposed in this invention;

[0022] Figure 7 This is a schematic diagram of the cross-sectional structure of the rocker arm seat in a high-strength fixture assembly welding device proposed in this invention;

[0023] Figure 8 This is a frame diagram of a welding device for assembling high-strength fixtures proposed in this invention.

[0024] In the diagram: 1. Welding end seat; 2. Plasma welding device; 3. Angle steel arrangement seat; 4. Side control shaft; 5. Rocker arm seat; 6. Pressing and conveying flip cover; 7. Conveyor belt; 8. Triangular pressing and arranging plate; 9. Elastic traction component; 10. Movable traction port; 11. Servo control motor; 12. Pulley; 13. Fixed ear plate; 14. Connecting shaft; 15. Rocker arm gear; 16. Electric control cylinder; 17. U-shaped push rod; 18. Spot welding gun; 19. Pneumatic push rod; 20. Limiting slide bar. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] Example, refer to Figures 1 to 8 A high-strength fixture assembly welding equipment includes a welding end seat 1 mounted on a multi-degree-of-freedom robotic arm. The multi-degree-of-freedom robotic arm can move and rotate with the cooperation of a robot, driving the welding end seat 1 to rotate. It can switch between a plasma welding device 2 and angle steel spot welding pre-fixation.

[0029] A plasma welding device 2 is provided on one end face of the welding end seat 1. The plasma welding device 2 is existing technology and will not be described in detail here. An angle steel arranging material seat 3 is provided on the other end face of the welding end seat 1. The angle steel arranging material seat 3 has a notch at its end to allow the angle steel to move forward and its bottom to contact the welding surface of the high-strength clamp. A limiting slide bar 20 is provided inside the angle steel arranging material seat 3 to limit the movement of the angle steel. The setting of the limiting slide bar 20 can ensure that the movement path of the angle steel is controlled according to the width of the angle steel.

[0030] Both sides of the angle steel arrangement material seat 3 are rotatably equipped with side control shafts 4, and rocker arm seats 5 are provided on the side control shafts 4. The welding end seat 1 is equipped with a rocker arm control component to control the rotation of the rocker arm seats 5. Further, the rocker arm control component includes a rocker arm gear 15 fixedly installed on the side control shafts 4. The welding end seat 1 is equipped with an electric control cylinder 16. The welding end seat 1 has a transmission cavity. The electric control cylinder 16 is installed inside the transmission cavity. The output end of the electric control cylinder 16 is fixedly connected to a U-shaped push rod 17. The end of the U-shaped push rod 17 has a tooth groove that meshes with the rocker arm gear 15.

[0031] Among them, the electric control cylinder 16 drives the U-shaped push rod 17 connected to its output end to retract inward, and the rocker arm gear 15 meshing with it will rotate, driving the rocker arm seat 5 connected to the side control shaft 4 to rotate, thereby controlling the rotation of the rocker arm seat 5 and achieving the effect of controlling the spot welding gun 18 to move to the welding point.

[0032] The rocker arm base 5 is equipped with a spot welding device for pre-fixing angle steel. The spot welding device is a type of resistance welding. It uses the resistance heat generated by the large current passing through the contact point of the workpiece to instantly melt the metal locally and form a weld point under pressure. It is existing technology and will not be described in detail here. The spot welding device includes a spot welding gun 18. A pneumatic push rod 19 is inclinedly arranged on the rocker arm base 5. The spot welding gun 18 is installed at the output end of the pneumatic push rod 19 and is moved by the pneumatic push rod 19.

[0033] The angle steel arranging material base 3 is connected to the pressing and conveying flip cover 6 by a rotating locking fastener. Furthermore, the rotating locking fastener includes a fixed ear plate 13 set on the angle steel arranging material base 3. The pressing and conveying flip cover 6 is connected to the fixed ear plate 13 by connecting shafts 14 at both ends. The other end of the pressing and conveying flip cover 6 is locked to the side wall of the angle steel arranging material base 3 by a buckle. The buckle can meet the needs of various feeding methods and maintenance.

[0034] A conveyor belt 7 is connected to the pressing and conveying flip cover 6 via a servo control component. Further, the servo control component includes a servo control motor 11 installed on the pressing and conveying flip cover 6. Both ends of the conveyor belt 7 are provided with pulleys 12, which are connected to the inner wall of the pressing and conveying flip cover 6 via axles. The output end of the servo control motor 11 is fixedly connected to the axle on one side. The servo control motor 11 drives the conveyor belt 7 to rotate, so that the triangular pressing and arranging plates 8 installed on the conveyor belt 7 convey the angle steel one by one and arrange them neatly one by one.

[0035] The conveyor belt 7 is equipped with an arrangement conveyor for conveying angle steel one by one. The arrangement conveyor includes a triangular pressing arrangement plate 8 evenly distributed on the conveyor belt 7. The triangular pressing arrangement plate 8 is connected to the outer wall of the conveyor belt 7 through elastic traction members 9 on both sides. The outer wall of the conveyor belt 7 is provided with a movable traction port 10 adapted to the elastic traction member 9.

[0036] It is worth noting that the ends of the triangular pressing plate 8 are curved and made of rubber. The elastic traction component 9 can meet the rotation adjustment at the pulley 12.

[0037] When reinforcing and welding high-strength fixtures with angle steel, the present invention places the angle steels one by one from the tail of the angle steel arrangement material seat 3, and controls the servo control motor 11 to drive the conveyor belt 7 to rotate, so that the triangular pressing arrangement plate 8 set on the conveyor belt 7 transports the angle steels one by one and arranges them neatly, ensuring the welding angle of the angle steel.

[0038] When welding angle steel, the end of the angle steel arrangement seat 3 is moved to the designated welding position by the multi-degree-of-freedom robotic arm. The conveyor belt 7 is driven by the servo control motor 11 to transport the angle steel. At this time, the triangular pressing plate 8 set on the conveyor belt 7 will push the angle steel on the angle steel arrangement seat 3 during the movement, thereby transporting the angle steel at the front to the outside. When the triangular pressing plate 8 bends at the pulley 12, it will squeeze the welding surface of the angle steel and the fixture, ensuring that the angle steel is tightly attached to the wall. At this time, the electric control cylinder 16 drives the U-shaped push rod 17 connected to its output end to retract inward. The rocker arm gear 15 meshing with it will rotate, driving the rocker arm seat 5 connected to the side control shaft 4 to rotate. At this time, the spot welding gun 18 set on the rocker arm seat 5 will move inward under the action of the pneumatic push rod 19, and spot welding will be achieved when it contacts the angle steel and the side wall of the fixture, thus achieving the pre-fixation of the angle steel.

[0039] After the angle steel is pre-fixed, the rotation of the multi-degree-of-freedom robotic arm drives the plasma welding device 2 on the other side to automatically weld the angle steel after spot welding. With the combined effect of welding and pre-fixing, the welding quality and welding efficiency can be significantly improved.

[0040] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A welding device for assembling high-strength fixtures, comprising a welding end-effector (1) mounted on a multi-degree-of-freedom robotic arm, wherein a plasma welding device (2) is provided on one end face of the welding end-effector (1), characterized in that, An angle steel arrangement material seat (3) is provided on the other end face of the welding end seat (1). A side control shaft (4) is rotatably provided on both sides of the end of the angle steel arrangement material seat (3). A rocker arm seat (5) is provided on the side control shaft (4). A rocker arm control component for controlling the rotation of the rocker arm seat (5) is provided inside the welding end seat (1). A spot welding device for pre-fixing angle steel is provided on the rocker arm seat (5). The angle steel arranging material seat (3) is connected to a pressing conveyor cover (6) by a rotating locking fastener. The pressing conveyor cover (6) is connected to a conveyor belt (7) by a servo control component. The conveyor belt (7) is equipped with an arranging conveyor component that conveys the angle steel one by one.

2. The welding equipment for assembling high-strength fixtures according to claim 1, characterized in that, The arrangement conveyor includes triangular pressing arrangement plates (8) evenly distributed on the conveyor belt (7). The triangular pressing arrangement plates (8) are connected to the outer wall of the conveyor belt (7) through elastic traction members (9) on both sides. The outer wall of the conveyor belt (7) is provided with a movable traction port (10) adapted to the elastic traction member (9).

3. The welding equipment for assembling high-strength fixtures according to claim 1, characterized in that, The servo control unit includes a servo control motor (11) mounted on the pressing conveyor flap (6), and pulleys (12) are mounted at both ends of the conveyor belt (7). The pulleys (12) are connected to the inner wall of the pressing conveyor flap (6) via axles. The output end of the servo control motor (11) is fixedly connected to the axle on one side.

4. The welding equipment for assembling high-strength fixtures according to claim 1, characterized in that, The rotating locking fastener includes a fixed ear plate (13) set on the angle steel arrangement material seat (3). The pressing conveying flip cover (6) is connected to the fixed ear plate (13) through the connecting shafts (14) at both ends. The other end of the pressing conveying flip cover (6) is locked to the side wall of the angle steel arrangement material seat (3) through a buckle.

5. The welding equipment for assembling high-strength fixtures according to claim 1, characterized in that, The rocker arm control component includes a rocker arm gear (15) fixedly mounted on the side control shaft (4), an electric control cylinder (16) is provided in the welding end seat (1), and a U-shaped push rod (17) is fixedly connected to the output end of the electric control cylinder (16). The end of the U-shaped push rod (17) is provided with a tooth groove that meshes with the rocker arm gear (15).

6. The welding equipment for assembling high-strength fixtures according to claim 1, characterized in that, The spot welding device includes a spot welding gun (18), and a pneumatic push rod (19) is inclinedly arranged on the rocker arm seat (5). The spot welding gun (18) is installed at the output end of the pneumatic push rod (19) and is driven to move by the pneumatic push rod (19).

7. The welding equipment for assembling high-strength fixtures according to claim 1, characterized in that, The angle steel arrangement material seat (3) is provided with a limiting slide bar (20) for limiting the angle steel.

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