A mistake-proofing detection for a vertical nut projection welding machine

Abstract

The utility model discloses a kind of vertical nut projection welder mistake-proof detection, comprising: projection welder body;Mounting bracket, fixedly connected on the projection welder body;Lifting mechanism, set on the mounting bracket;Lifting rod, set on the lifting mechanism;Rotary frame, rotationally connected on the lifting rod;Telescopic cylinder, rotationally connected on the lifting rod, and the telescopic cylinder telescopic rod one end with the rotary frame one side rotationally connected.The utility model passes through opening drive arrangement, threaded rod moves in lifting frame with sliding frame, adjust the height of industrial camera on projection welder body, in opening telescopic cylinder, rotary frame rotates on lifting rod, adjust the pitch angle of industrial camera and projection welder body processing workpiece, this structure design can adjust industrial camera to suitable position, ensure that industrial camera image acquisition is clear, avoid that the precision detected by equipment is lower.

Description

Technical Field

[0001] This utility model relates to the technical field of error prevention and detection equipment for projection welding machines, specifically to an error prevention and detection system for vertical nut projection welding machines. Background Technology

[0002] Vertical nut projection welding machines are specialized equipment used to weld nuts onto workpieces. They are widely used in automotive parts, electronic device housings, and home appliances. Error prevention detection is required during the use of vertical nut projection welding machines to ensure welding quality and production safety. Error prevention detection methods for projection welding machines include displacement sensor detection devices and visual recognition detection devices.

[0003] Currently, most visual recognition and inspection devices for nut projection welding machines use industrial cameras to acquire images of the welding area and identify the position, size, and angle deviation of the nut through image processing algorithms to achieve error-proof detection. However, when inspecting bolts welded to workpieces with special tilt angles, the pitch angle between the equipment and the workpiece changes. Since some existing equipment is installed using bolts, the visual recognition and inspection device cannot be adjusted. This leads to problems such as image distortion, glare interference, and shadow occlusion when the equipment inspects bolts welded to workpieces with special tilt angles, resulting in low accuracy and reliability of the equipment and limitations in its use. Utility Model Content

[0004] The purpose of this invention is to provide a vertical nut projection welding machine error prevention detection system to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vertical nut projection welding machine error prevention detection system, comprising: a projection welding machine body; a mounting bracket fixedly connected to the projection welding machine body; a lifting mechanism disposed on the mounting bracket; a lifting rod disposed on the lifting mechanism; a rotating frame rotatably connected to the lifting rod; a telescopic cylinder rotatably connected to the lifting rod, and one end of the telescopic rod of the telescopic cylinder is rotatably connected to one side of the rotating frame; an industrial camera mounted on the rotating frame; the lifting mechanism and the telescopic cylinder are configured to cooperate to adjust the position of the industrial camera on the projection welding machine body.

[0006] As a further preferred embodiment of this technical solution, it further includes: a mounting platform, disposed on the mounting bracket; a T-shaped slider, slidably connected in the groove of the mounting platform; a fixing groove, formed on the T-shaped slider; and a screw, threadedly connected in the threaded hole of the mounting platform, with one end of the screw abutting against the inner wall of the fixing groove; the T-shaped slider and the screw are configured to cooperate in limiting the position of the industrial camera on the projection welding machine body.

[0007] As a further preferred embodiment of this technical solution, the lifting mechanism includes a lifting frame, fixedly connected to the T-shaped slider; a driving device, fixedly installed on the lifting frame; a threaded rod, rotatably connected inside the lifting frame, with one end of the threaded rod being drively connected to the output end of the driving device; and a sliding frame, slidably connected to the lifting frame, with the threaded hole of the sliding frame being threadedly connected to the outer surface of the threaded rod.

[0008] As a further preferred embodiment of this technical solution, it also includes: a limiting plate, which is fixedly connected to the sliding frame, and one side of the sliding frame is fixedly connected to one side of the lifting rod.

[0009] As a further preferred embodiment of this technical solution, it also includes: a plurality of fixing screws, all threadedly connected in the threaded grooves of the mounting platform, and one end of each fixing screw being threadedly connected to the threaded hole of the mounting bracket.

[0010] As a further preferred embodiment of this technical solution, it also includes: a control box, which is fixedly installed on the projection welding machine body.

[0011] As a further preferred embodiment of this technical solution, it also includes: a reinforcing rib, which is fixedly connected to the mounting bracket, and one side of the reinforcing rib is fixedly connected to one side of the projection welding machine body.

[0012] This utility model provides a fault-proof detection method for a vertical nut projection welding machine, which has the following beneficial effects:

[0013] (1) By opening the drive device, the threaded rod drives the sliding frame to move on the lifting frame, adjusting the height of the industrial camera on the projection welding machine body. When the telescopic cylinder is opened, the rotating frame rotates on the lifting rod, adjusting the pitch angle between the industrial camera and the workpiece processed by the projection welding machine body. This structural design can adjust the industrial camera to a suitable position, ensuring clear image acquisition by the industrial camera and avoiding low detection accuracy by the equipment.

[0014] (2) By turning the nut at one end of the screw, the screw moves in the threaded hole in the mounting platform, and the screw is moved out of the fixed groove, thus releasing the restriction of the T-shaped slider. Then the T-shaped slider is removed from the mounting platform, which makes it convenient to disassemble the lifting mechanism, telescopic cylinder or industrial camera for maintenance. Attached Figure Description

[0015] Figure 1 This is a first-view structural diagram of the entire utility model;

[0016] Figure 2 This is a second-view structural diagram of the entire utility model;

[0017] Figure 3This is a schematic diagram showing the connection relationship between the telescopic cylinder and the lifting mechanism in the overall structure of this utility model;

[0018] Figure 4 This is an exploded structural diagram of the lifting mechanism in the overall design of this utility model;

[0019] Figure 5 for Figure 4 A magnified view of a portion of region A in the middle.

[0020] In the diagram: 1. Projection welding machine body; 2. Control box; 3. Mounting bracket; 4. Industrial camera; 5. Lifting mechanism; 6. Lifting rod; 7. Rotating frame; 8. Telescopic cylinder; 9. Mounting platform; 10. Fixing screw; 11. Screw; 12. Lifting frame; 13. Drive device; 14. Threaded rod; 15. Sliding frame; 16. T-slider; 17. Limiting plate; 18. Fixing groove; 19. Reinforcing rib. Detailed Implementation

[0021] 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.

[0022] This utility model provides a technical solution: such as Figure 1 - Figure 5 As shown, in this embodiment, a vertical nut projection welding machine error prevention detection includes: a projection welding machine body 1; a mounting bracket 3, fixedly connected to the projection welding machine body 1; a lifting mechanism 5, mounted on the mounting bracket 3; a lifting rod 6, mounted on the lifting mechanism 5; a rotating frame 7, rotatably connected to the lifting rod 6; a telescopic cylinder 8, rotatably connected to the lifting rod 6, and one end of the telescopic rod of the telescopic cylinder 8 is rotatably connected to one side of the rotating frame 7; and an industrial camera 4, mounted on the rotating frame 7. The lifting mechanism 5 and the telescopic cylinder 8 are configured to cooperate to adjust the position of the industrial camera 4 on the projection welding machine body 1.

[0023] By activating the drive device 13, the threaded rod 14 drives the sliding frame 15 to move on the lifting frame 12, adjusting the height of the industrial camera 4 on the projection welding machine body 1. Then, by activating the telescopic cylinder 8, the rotating frame 7 rotates on the lifting rod 6, adjusting the pitch angle between the industrial camera 4 and the workpiece processed by the projection welding machine body 1. This structural design allows the industrial camera 4 to be adjusted to a suitable position, ensuring clear image acquisition by the industrial camera 4 and avoiding low detection accuracy by the equipment. The adjustment of height and pitch angle are controlled by the control box 2. During use, the equipment will input the data of each workpiece into the control box 2 to prevent the lifting mechanism 5 and the telescopic cylinder 8 from being adjusted too much or too little.

[0024] like Figure 3 - Figure 5As shown, it also includes: a mounting platform 9, which is set on the mounting bracket 3; a T-shaped slider 16, which is slidably connected in the groove of the mounting platform 9; a fixing groove 18, which is formed on the T-shaped slider 16; and a screw 11, which is threadedly connected in the threaded hole of the mounting platform 9, and one end of the screw 11 abuts against the inner wall of the fixing groove 18; the T-shaped slider 16 and the screw 11 are configured to cooperate to limit the position of the industrial camera 4 on the projection welding machine body 1.

[0025] By turning the nut at one end of the screw 11, the screw 11 moves in the threaded hole in the mounting platform 9, and one end of the screw 11 is moved out of the fixing groove 18, releasing the restriction of the T-shaped slider 16. Then the T-shaped slider 16 is removed from the mounting platform 9, which makes it convenient to disassemble the lifting mechanism 5, the telescopic cylinder 8 or the industrial camera 4 for maintenance.

[0026] like Figure 1 - Figure 4 As shown, the lifting mechanism 5 includes a lifting frame 12, which is fixedly connected to the T-shaped slider 16; a drive device 13, which is fixedly installed on the lifting frame 12; a threaded rod 14, which is rotatably connected inside the lifting frame 12, and one end of the threaded rod 14 is connected to the output end of the drive device 13; and a sliding frame 15, which is slidably connected to the lifting frame 12, and the threaded hole of the sliding frame 15 is threadedly connected to the outer surface of the threaded rod 14. When processing irregularly shaped workpieces, auxiliary tools are used, which may obstruct the image acquisition of the industrial camera 4. The lifting mechanism 5 is used to adjust the height of the industrial camera 4 to avoid obstruction during image acquisition.

[0027] like Figure 4 As shown, it also includes: a limiting plate 17, which is fixedly connected to the sliding frame 15, and one side of the sliding frame 15 is fixedly connected to one side of the lifting rod 6; the limiting plate 17 is used to limit the sliding direction of the sliding frame 15 and to strengthen the connection strength of the sliding frame 15 on the lifting frame 12.

[0028] like Figure 3 - Figure 5 As shown, it also includes: a number of fixing screws 10, all of which are threaded into the threaded grooves of the mounting platform 9, and one end of the fixing screw 10 is threaded into the threaded hole of the mounting bracket 3; the fixing screws 10 are used to fix the mounting platform 9 onto the mounting bracket 3.

[0029] like Figure 1 and Figure 2 As shown, it also includes: a control box 2, which is fixedly installed on the projection welding machine body 1. The control box 2 is used to control the drive device 13 and the telescopic cylinder 8. The control box 2 contains a processing module and an alarm device. The industrial camera 4 acquires and transmits images to the processing module. The processing module determines whether the bolt is misaligned when placed on the workpiece or whether there is any missing weld after welding.

[0030] like Figure 1As shown, it also includes: a reinforcing rib 19, which is fixedly connected to the mounting bracket 3, and one side of the reinforcing rib 19 is fixedly connected to one side of the projection welding machine body 1. The reinforcing rib 19 is used to strengthen the mounting bracket 3 on the projection welding machine body 1.

[0031] This utility model provides a fault-proof detection method for a vertical nut projection welding machine. The specific working principle is as follows:

[0032] When welding a vertical nut onto a workpiece, first place the workpiece on the projection welding machine, place the vertical nut, and turn on the industrial camera 4. The industrial camera 4 will capture the position of the vertical nut on the workpiece. If misalignment or tilting of the vertical nut occurs, an alarm will be triggered to alert the operator. If there are no problems, turn on the projection welding machine and weld the workpiece and the vertical nut. Repeat the above operation after welding is completed to check the welding condition and prevent missed welds. When welding different types of workpieces, locate the workpiece to be welded on the display screen of the control box 2, turn on the drive device 13, and the threaded rod 14 will drive the sliding frame 15 to move on the lifting frame 12. Adjust the height of the industrial camera 4 on the projection welding machine body 1, and then turn on the telescopic cylinder 8. The rotating frame 7 will rotate on the lifting rod 6. Adjust the pitch angle between the industrial camera 4 and the projection welding machine body 1 to adjust the industrial camera 4 to a suitable position, and then repeat the above operation to perform error prevention detection.

[0033] 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 fault-proofing detection method for a vertical nut projection welding machine, characterized in that, include: Projection welding machine body (1); Mounting bracket (3) is fixedly connected to the projection welding machine body (1); The lifting mechanism (5) is mounted on the mounting bracket (3); A lifting rod (6) is mounted on the lifting mechanism (5); The rotating frame (7) is rotatably connected to the lifting rod (6); Telescopic cylinder (8) is rotatably connected to the lifting rod (6), and one end of the telescopic rod of the telescopic cylinder (8) is rotatably connected to one side of the rotating frame (7); An industrial camera (4) is mounted on the rotating frame (7); The lifting mechanism (5) and the telescopic cylinder (8) are configured to work together to adjust the position of the industrial camera (4) on the projection welding machine body (1).

2. The error-proof detection method for a vertical nut projection welding machine according to claim 1, characterized in that, Also includes: Mounting platform (9) is mounted on the mounting bracket (3); T-shaped slider (16) is slidably connected in the groove of the mounting platform (9); A fixing groove (18) is formed on the T-shaped slider (16); The screw (11) is threaded into the threaded hole of the mounting platform (9), and one end of the screw (11) abuts against the inner wall of the fixing groove (18); The T-shaped slider (16) and the screw (11) are configured to cooperate in limiting the position of the industrial camera (4) on the projection welding machine body (1).

3. The error-proof detection method for a vertical nut projection welding machine according to claim 2, characterized in that, The lifting mechanism (5) includes a lifting frame (12), which is fixedly connected to the T-shaped slider (16); The drive unit (13) is fixedly installed on the lifting frame (12); A threaded rod (14) is rotatably connected inside the lifting frame (12), and one end of the threaded rod (14) is connected to the output end of the driving device (13). The sliding frame (15) is slidably connected to the lifting frame (12), and the threaded hole of the sliding frame (15) is threadedly connected to the outer surface of the threaded rod (14).

4. The error-proof detection method for a vertical nut projection welding machine according to claim 3, characterized in that, Also includes: The limiting plate (17) is fixedly connected to the sliding frame (15), and one side of the sliding frame (15) is fixedly connected to one side of the lifting rod (6).

5. The error-proofing detection method for a vertical nut projection welding machine according to claim 2, characterized in that, Also includes: Several fixing screws (10) are threaded into the threaded grooves of the mounting platform (9), and one end of the fixing screw (10) is threaded into the threaded hole of the mounting bracket (3).

6. The error-proof detection method for a vertical nut projection welding machine according to claim 4, characterized in that, Also includes: The control box (2) is fixedly installed on the projection welding machine body (1).

7. The error-proof detection method for a vertical nut projection welding machine according to claim 1, characterized in that, Also includes: A reinforcing rib (19) is fixedly connected to the mounting bracket (3), and one side of the reinforcing rib (19) is fixedly connected to one side of the projection welding machine body (1).

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