Welding robot for new energy automobile machining

Abstract

The utility model provides a welding robot for new energy automobile machining, which belongs to the technical field of welding robots and comprises a workbench, a detection component and a clamping component. A welding table is mounted on the surface of the workbench, and a welding mechanical arm is mounted on one side of the surface of the workbench; during welding, an image collected by the visual welding seam tracker is transmitted to the controller through the wire interface, the position and the shape of a welding seam are recognized through a processing algorithm, and then position and posture data, needing to be adjusted, of the welding gun head are calculated according to preset programs and algorithms. The executing mechanism adjusts the position and the posture of the welding gun head according to the control signal sent by the controller, accurate tracking of a welding seam is achieved, it is ensured that the welding position is accurate, welding seam deviation caused by workpiece position deviation, assembly errors or thermal deformation in the welding process is avoided, and the welding quality is improved. Therefore, the welding quality problem caused by position deviation is effectively avoided, and the welding quality is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of welding robot technology, specifically a welding robot for new energy vehicle processing. Background Technology

[0002] Currently, automated welding robots are required for welding operations in the production and processing of automotive parts. Existing welding robots typically consist of an industrial robot with a welding gun or torch attached to its end flange, enabling it to weld on a worktable. However, since some products have multiple welding points scattered throughout the product, the workpiece angle usually needs to be manually adjusted during the welding process, or adjusted by a robotic arm, to ensure it moves to the next welding station in a predetermined position and orientation. This production method increases production costs and lengthens the waiting time for subsequent products to be welded, thus affecting production efficiency. One example is a welding robot for automotive workpiece production and processing, patent application number "CN202323416665.4". This robot uses a gripping mechanism to pick up the parts to be welded and place them on a worktable. The grippers on the worktable are used to fix the parts. A first rotating motor is started, driving a first rotating shaft to rotate. When the shaft rotates to the welding arm, a second rotating motor drives all the worktables to rotate together, rotating the points of the parts to be welded to one side of the welding arm for easier welding. However, the welding robot needs to overcome certain shortcomings in actual use: for larger automotive floor panels, the placement and clamping of the workpieces can easily cause deviations; the welding arm lacks weld seam inspection capabilities, leading to missed welds and weld misalignments, affecting the workpiece pass rate. Utility Model Content

[0003] The purpose of this utility model is to provide a welding robot for processing new energy vehicles, so as to solve the problem mentioned in the background art that when welding large individual workpieces such as automobile floor panels, certain deviations are easily caused by the placement and clamping of the workpieces, and the welding robot arm does not have the function of weld seam inspection, resulting in missed welds and weld deviations, which affects the workpiece qualification rate.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a welding robot for processing new energy vehicles, comprising a worktable, a detection component, and a clamping component;

[0005] Wherein: a welding table is installed on the surface of the workbench, a welding robot arm is installed on one side of the surface of the workbench, and a welding gun head is installed at the front end of the welding robot arm;

[0006] The detection assembly includes a mounting bracket fixedly installed on the surface of a welding gun head. A fixing plate is installed at the bottom of the mounting bracket, and a placement frame is installed on one side of the fixing plate. A visual weld seam tracker is placed inside the placement frame. A wire interface is installed on the top of the visual weld seam tracker. Mounting holes are opened on both sides of the placement frame, and fixing bolts are inserted into the mounting holes. The visual weld seam tracker is fixed inside the placement frame by fixing bolts.

[0007] A clamping assembly includes a cylinder fixedly installed around the bottom of a welding table. A through hole is provided around the surface of the welding table. A push rod is installed at the telescopic end of the cylinder. The top of the push rod is inserted into the through hole and hinged to a clamping block. A boss is installed around the surface of the welding table on one side of the through hole. A connecting rod is hinged to the top of the boss. One end of the connecting rod is hinged to the middle of the clamping block.

[0008] As a preferred embodiment of this utility model: a ball head is installed on the surface of the fixing plate, a hinge support is installed on the back of the placement frame, and an adjusting bolt is inserted at the hinge joint between the hinge support and the ball head.

[0009] As a preferred embodiment of this utility model: support frames are installed on both sides of the surface of the workbench, a bearing seat is fixedly installed at the top of the support frame, a flipping frame is rotatably installed inside the bearing seat, the welding table is fixed in the middle of the flipping frame, and a rotating motor is installed on one side of the top of the support frame, the output end of the rotating motor is connected to one end of the flipping frame.

[0010] As a preferred embodiment of this utility model, a plurality of rubber pads are fixedly installed on the surface of the welding station.

[0011] As a preferred embodiment of this utility model, a weight-reducing hole is provided in the middle of the surface of the welding station.

[0012] As a preferred embodiment of this utility model: a PLC controller is installed inside the workbench, and the welding robotic arm, visual weld seam tracker, cylinder and rotary motor are all connected to the PLC controller for control. The PLC controller is electrically connected to an external power supply.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) A mounting bracket is installed on the surface of the welding gun head, and a fixing plate is installed at the bottom of the mounting bracket. The visual weld tracker is installed through the placement frame installed on one side of the fixing plate. The visual weld tracker is fixed through the fixing bolts inside the mounting hole. During welding, the image collected by the visual weld tracker is transmitted to the controller through the wire interface. The processing algorithm identifies the position and shape of the weld. Then, according to the preset program and algorithm, the position and posture data that the welding gun head needs to be adjusted are calculated and converted into control signals. The actuator adjusts the position and posture of the welding gun head according to the control signals issued by the controller to achieve accurate tracking of the weld, ensure accurate welding position, avoid weld offset caused by workpiece position deviation, assembly error or thermal deformation during welding, thereby effectively avoiding welding quality problems caused by position deviation and significantly improving welding quality.

[0015] (2) A ball head is installed on the surface of the fixed plate, and a hinge support is installed on the back of the placement frame. The placement frame is hinged to the ball head on the surface of the fixed plate through the hinge support. The placement frame can be adjusted relative to the fixed plate by rotating the adjusting bolt, thereby adjusting the installation angle of the visual weld seam tracker. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the detection component structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the clamping component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the flipping frame of this utility model.

[0020] In the diagram: 1. Workbench; 2. Welding table; 3. Welding robotic arm; 4. Welding torch.

[0021] 5. Inspection components; 51. Mounting bracket; 52. Fixing plate; 53. Placement frame; 54. Visual weld seam tracker; 55. Wire interface; 56. Mounting hole; 57. Fixing bolt;

[0022] 6. Clamping assembly; 61. Cylinder; 62. Through hole; 63. Push rod; 64. Clamping block; 65. Boss; 66. Connecting rod;

[0023] 7. Ball head;

[0024] 8. Hinge support;

[0025] 9. Adjusting bolts;

[0026] 10. Support frame; 11. Bearing seat; 12. Tilting frame; 13. Rotating motor; 14. Rubber pad; 15. Weight reduction hole. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Please see Figure 1 - Figure 4 A welding robot for processing new energy vehicles includes: a workbench 1, a detection component 5, and a clamping component 6;

[0029] A welding table 2 is installed on the surface of the workbench 1, a welding robotic arm 3 is installed on one side of the surface of the workbench 1, and a welding gun head 4 is installed at the front end of the welding robotic arm 3.

[0030] Please see Figure 1 , Figure 2 The detection component 5 includes a mounting bracket 51 fixedly mounted on the surface of the welding gun head 4. A fixing plate 52 is mounted on the bottom of the mounting bracket 51. A placement frame 53 is mounted on one side of the fixing plate 52. A visual weld seam tracker 54 is placed inside the placement frame 53. A wire interface 55 is mounted on the top of the visual weld seam tracker 54. Mounting holes 56 are opened on both sides of the placement frame 53. Fixing bolts 57 are inserted into the mounting holes 56. The visual weld seam tracker 54 is fixed inside the placement frame 53 by the fixing bolts 57.

[0031] In practical use: A mounting bracket 51 is installed on the surface of the welding gun head 4, and a fixing plate 52 is installed at the bottom of the mounting bracket 51. The visual weld seam tracker 54 is installed through the placement frame 53 installed on one side of the fixing plate 52. The visual weld seam tracker 54 is fixed through the fixing bolts 57 inside the mounting hole 56. During welding, the image collected by the visual weld seam tracker 54 is transmitted to the controller through the wire interface 55. The processing algorithm identifies the position and shape of the weld seam. Then, according to the preset program and algorithm, the position and posture data that the welding gun head 4 needs to be adjusted are calculated, and these data are converted into control signals. The actuator then adjusts the position and posture of the welding gun head 4 according to the control signals issued by the controller, so as to achieve precise tracking of the weld seam, ensure accurate welding position, avoid weld seam offset caused by workpiece position deviation, assembly error or thermal deformation during welding, thereby effectively avoiding welding quality problems caused by position deviation and significantly improving welding quality.

[0032] Please see Figure 3 The clamping assembly 6 includes a cylinder 61 fixedly installed around the bottom of the welding table 2. A through hole 62 is opened around the surface of the welding table 2. A push rod 63 is installed at the telescopic end of the cylinder 61. The top of the push rod 63 is inserted into the through hole 62 and a clamping block 64 is hinged to it. A boss 65 is installed around the surface of the welding table 2 on one side of the through hole 62. A connecting rod 66 is hinged to the top of the boss 65. One end of the connecting rod 66 is hinged to the middle of the clamping block 64. A plurality of rubber pads 14 are fixedly installed on the surface of the welding table 2.

[0033] In practical use: Cylinders 61 are installed around the bottom of the welding table 2. A push rod 63 is installed at the telescopic end of the cylinder 61. The push rod 63 is inserted into the through hole 62. When the cylinder 61 drives the push rod 63 to move, the push rod 63 drives the clamping block 64 hinged at the top to move. The middle part of the clamping block 64 is hinged to the connecting rod 66 at the top of the boss 65, so that the clamping block 64 clamps and fixes the workpiece placed on the surface of the welding table 2 under the action of the push rod 63, ensuring the stability of the workpiece during the welding process. Multiple rubber pads 14 are fixedly installed on the surface of the welding table 2 to support the workpiece and prevent scratches on the workpiece surface.

[0034] Please see Figure 2 A ball head 7 is mounted on the surface of the fixing plate 52, and a hinge support 8 is mounted on the back of the placement frame 53. An adjusting bolt 9 is inserted at the hinge joint between the hinge support 8 and the ball head 7.

[0035] In practical use: a ball head 7 is installed on the surface of the fixing plate 52, and a hinge support 8 is installed on the back of the placement frame 53. The placement frame 53 is hinged to the ball head 7 on the surface of the fixing plate 52 through the hinge support 8. By rotating the adjusting bolt 9, the placement frame 53 can be adjusted relative to the fixing plate 52, thereby adjusting the installation angle of the visual weld seam tracker 54.

[0036] Please see Figure 4 Support frames 10 are installed on both sides of the surface of the workbench 1. A bearing seat 11 is fixedly installed on the top of the support frame 10. A rotating frame 12 is rotatably installed inside the bearing seat 11. The welding table 2 is fixed in the middle of the rotating frame 12. A rotating motor 13 is installed on one side of the top of one of the support frames 10. The output end of the rotating motor 13 is connected to one end of the rotating frame 12.

[0037] In practical use: Support frames 10 are installed on both sides of the surface of the workbench 1. The flipping frame 12 is rotatably installed inside the bearing seat 11 at the top of the support frame 10. When the rotating motor 13 rotates, it drives one end of the flipping frame 12 to rotate, thereby driving the welding table 2 to flip and adjust, which is convenient for welding the back or off-center corner of the workpiece.

[0038] Please see Figure 3 A weight-reducing hole 15 is provided in the middle of the surface of the welding table 2.

[0039] In practical use: The surface of the welding table 2 is provided with weight reduction holes 15, which reduces the structural weight while ensuring structural strength and reducing equipment costs.

[0040] Please see Figure 1 The workbench 1 is equipped with a PLC controller. The welding robot arm 3, the vision weld seam tracker 54, the cylinder 61 and the rotary motor 13 are all connected to the PLC controller. The PLC controller is electrically connected to an external power supply.

[0041] In practical use: When the PLC controller is connected to the external power supply, the welding robot arm 3, the visual weld seam tracker 54, the cylinder 61 and the rotating motor 13 are powered on and controlled to run. When the PLC controller is disconnected from the external power supply, the equipment stops running.

[0042] During welding, the image acquired by the visual weld seam tracker 54 is transmitted to the controller via the wire interface 55. The processing algorithm identifies the position and shape of the weld seam. Then, according to the preset program and algorithm, the position and posture data that the welding gun head 4 needs to be adjusted are calculated. These data are converted into control signals. The actuator then adjusts the position and posture of the welding gun head 4 according to the control signals issued by the controller, so as to achieve precise tracking of the weld seam, ensure accurate welding position, avoid weld seam offset caused by workpiece position deviation, assembly error or thermal deformation during welding, thereby effectively avoiding welding quality problems caused by position deviation and significantly improving welding quality.

[0043] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding robot for processing new energy vehicles, characterized in that, include: A workbench (1) is provided with a welding table (2) mounted on its surface. A welding robot arm (3) is mounted on one side of the surface of the workbench (1). A welding gun head (4) is mounted on the front end of the welding robot arm (3). The detection component (5) includes a mounting bracket (51) fixedly mounted on the surface of the welding gun head (4). A fixing plate (52) is mounted on the bottom of the mounting bracket (51). A placement frame (53) is mounted on one side of the fixing plate (52). A visual weld seam tracker (54) is placed inside the placement frame (53). A wire interface (55) is mounted on the top of the visual weld seam tracker (54). Mounting holes (56) are opened on both sides of the placement frame (53). Fixing bolts (57) are inserted inside the mounting holes (56). The visual weld seam tracker (54) is fixed inside the placement frame (53) by fixing bolts (57). The clamping assembly (6) includes a cylinder (61) fixedly installed around the bottom of the welding table (2). The welding table (2) has through holes (62) around its surface. A push rod (63) is installed at the telescopic end of the cylinder (61). The top of the push rod (63) is inserted into the through hole (62) and a clamping block (64) is hinged thereon. A boss (65) is installed around the surface of the welding table (2) on one side of the through hole (62). A connecting rod (66) is hinged to the top of the boss (65). One end of the connecting rod (66) is hinged to the middle of the clamping block (64).

2. The welding robot for new energy vehicle processing according to claim 1, characterized in that: A ball head (7) is installed on the surface of the fixing plate (52), and a hinge support (8) is installed on the back of the placement frame (53). An adjusting bolt (9) is inserted at the hinge joint between the hinge support (8) and the ball head (7).

3. The welding robot for new energy vehicle processing according to claim 1, characterized in that: Support frames (10) are installed on both sides of the surface of the workbench (1). A bearing seat (11) is fixedly installed at the top of the support frame (10). A rotating frame (12) is rotatably installed inside the bearing seat (11). The welding table (2) is fixed in the middle of the rotating frame (12). A rotating motor (13) is installed on one side of the top of the support frame (10). The output end of the rotating motor (13) is connected to one end of the rotating frame (12).

4. The welding robot for new energy vehicle processing according to claim 1, characterized in that: Multiple rubber pads (14) are fixedly installed on the surface of the welding table (2).

5. A welding robot for new energy vehicle processing according to claim 1, characterized in that: The welding table (2) has a weight-reducing hole (15) in the middle of its surface.

6. A welding robot for new energy vehicle processing according to claim 3, characterized in that: The workbench (1) is equipped with a PLC controller. The welding robot arm (3), the visual weld seam tracker (54), the cylinder (61) and the rotating motor (13) are all connected to the PLC controller. The PLC controller is electrically connected to an external power supply.

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