Projection welder with nut miss weld detection

Abstract

The utility model discloses a kind of projection welding machine with nut welding detection, comprising: projection welding machine body;Control cabinet, install on the projection welding machine body;Alarm device, install on the control cabinet;Mounting table, fixedly connected on the projection welding machine body;Conveying mechanism, set on the mounting table.The utility model is welded in nut after projection welding machine body to workpiece, while taking off workpiece from welding platform by staff, workpiece is placed on the conveying belt on conveying mechanism, opens drive arrangement, conveying belt drives workpiece to move to the detection position of visual inspection mechanism, opens visual inspection mechanism, visual inspection mechanism carries out photographing to welding position, the data transmission of photographing is in control cabinet, control cabinet analyzes welding effect, when defect occurs, alarm device issues alarm signal to remind staff, this structure design, prevent defective workpiece from on market, ensure workpiece product quality and reliability.

Description

Technical Field

[0001] This utility model relates to the field of projection welding machine technology, specifically a projection welding machine with nut leakage detection function. Background Technology

[0002] Nut projection welding machine is a professional equipment that uses resistance welding technology. By pre-setting projections on the surface of the nut or workpiece, electrode pressure and current are used to melt the projection area and form a weld point, thus achieving a firm connection between the nut and the workpiece.

[0003] Currently, most projection welding machines weld nuts onto workpieces by having workers place the nuts on the workpiece before welding. However, when placing the nuts, they may shift or tilt, failing to make effective contact with the workpiece and resulting in incomplete welding. Existing equipment lacks detection capabilities, leading to defective products entering the market. These products then experience problems such as loosening or falling off during use, severely impacting product quality and reliability, and rendering them inconvenient to use. Utility Model Content

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

[0005] To achieve the above objectives, this utility model provides the following technical solution: a projection welding machine with nut leakage detection, comprising: a projection welding machine body; a control box mounted on the projection welding machine body; an alarm device mounted on the control box; a mounting platform fixedly connected to the projection welding machine body; a conveying mechanism disposed on the mounting platform; a support frame fixedly connected to the mounting platform; an adjustment structure disposed on the support frame; and a plurality of vision inspection mechanisms, all disposed on the adjustment structure; the conveying mechanism is configured to drive and move the workpiece to the detection position of the vision inspection mechanism.

[0006] As a further preferred embodiment of this technical solution, the adjustment structure includes a gear disk rotatably mounted on the support frame; a motor mounted on the support frame, with the bevel gear of the motor meshing with the slot of the gear disk; a mounting frame fixedly connected to the gear disk, with a plurality of the vision inspection mechanisms respectively mounted in a plurality of mounting slots of the mounting frame; the motor and the gear disk are configured to cooperate to adjust the position of the vision inspection mechanism.

[0007] As a further preferred embodiment of this technical solution, it also includes: two mounting plates, both fixedly connected to the mounting platform; two cylinders, respectively fixedly mounted on the two mounting plates; and two movable plates, respectively fixedly connected to the output ends of the two cylinders; the cylinders and the movable plates are configured to cooperate to adjust the position of the workpiece on the conveying mechanism.

[0008] As a further preferred embodiment of this technical solution, it also includes: a guide rod, which is slidably disposed on the mounting plate, and one end of the guide rod is fixedly connected to one side of the movable plate.

[0009] As a further preferred embodiment of this technical solution, it also includes: a plurality of rollers, all rotatably connected within the movable plate.

[0010] As a further preferred embodiment of this technical solution, it also includes: a reinforcing rib, which is fixedly connected to the bottom of the mounting platform, and one side of the reinforcing rib is fixedly connected to one side of the projection welding machine body.

[0011] As a further preferred embodiment of this technical solution, the transmission mechanism includes a transmission belt, a drive wheel, and a drive device. The output end of the drive device is connected to the drive wheel, and the drive wheel is connected to the inner wall of the transmission belt.

[0012] This utility model provides a projection welding machine with nut incomplete weld detection, which has the following beneficial effects:

[0013] (1) After the nut is welded to the workpiece by the projection welding machine body, the worker takes the workpiece off the welding table and places it on the conveyor belt of the conveying mechanism. The drive device is turned on and the conveyor belt moves the workpiece to the detection position of the vision inspection mechanism. The vision inspection mechanism is turned on and takes pictures of the welding position. The data of the pictures is transmitted to the control box. The control box analyzes the welding effect. When a defect occurs, the alarm device sends an alarm signal to remind the worker. This structural design prevents defective workpieces from being put back on the market and ensures the quality and reliability of the workpiece products.

[0014] (2) Through the structural design of two cylinders, when the worker places the workpiece on the conveyor belt, the two cylinders are turned on and the rollers on the two moving plates adjust the position of the workpiece on the conveyor belt to ensure that the welding position is in the working position of the vision inspection mechanism. At the same time, when different welding positions are inspected, the extension length of the telescopic rods of the two cylinders can be adjusted to ensure that the welding position of the workpiece is in the working position of the vision inspection mechanism. This structural design can improve the versatility of the equipment. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram showing the connection relationship between the conveying mechanism, the visual inspection mechanism, and the moving plate in this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the adjustment structure in this utility model;

[0018] Figure 4 This is a schematic diagram showing the connection relationship between the cylinder, the moving plate, and the roller in this utility model.

[0019] In the diagram: 1. Projection welding machine body; 2. Control box; 3. Alarm device; 4. Mounting platform; 5. Conveying mechanism; 6. Support frame; 7. Visual inspection mechanism; 8. Reinforcing rib; 9. Mounting plate; 10. Cylinder; 11. Moving plate; 12. Guide rod; 13. Adjustment structure; 14. Motor; 15. Gear disk; 16. Mounting frame; 17. Roller. Detailed Implementation

[0020] 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.

[0021] This utility model provides a technical solution: such as Figure 1 - Figure 4 As shown, in this embodiment, a projection welding machine with nut leakage detection includes: a projection welding machine body 1; a control box 2, mounted on the projection welding machine body 1; an alarm device 3, mounted on the control box 2; a mounting platform 4, fixedly connected to the projection welding machine body 1; a conveying mechanism 5, disposed on the mounting platform 4; a support frame 6, fixedly connected to the mounting platform 4; an adjustment structure 13, disposed on the support frame 6; and several vision inspection mechanisms 7, all disposed on the adjustment structure 13. The conveying mechanism 5 is configured to drive and move the workpiece to the detection position of the vision inspection mechanism 7.

[0022] After the nut is welded to the workpiece by the projection welding machine body 1, the worker removes the workpiece from the welding table and places it on the conveyor belt of the conveying mechanism 5. The drive device is turned on, and the conveyor belt moves the workpiece to the inspection position of the vision inspection mechanism 7. The vision inspection mechanism 7 is then turned on, and it takes pictures of the welding position. The data of the pictures is transmitted to the control box 2, which analyzes the welding effect. When a defect is found, the alarm device 3 sends an alarm signal to remind the worker. This structural design prevents defective workpieces from being put back on the market, ensuring the quality and reliability of the workpiece products. An ultrasonic testing device can also be installed on the mounting frame 16. The vision inspection mechanism 7 and the ultrasonic testing device work together to improve the inspection effect. The conveying mechanism 5 needs to be turned off during inspection.

[0023] like Figure 2 and Figure 3As shown, the adjustment structure 13 includes a gear disk 15, which is rotatably mounted on the support frame 6; a motor 14, which is mounted on the support frame 6, and the bevel gear of the motor 14 meshes with the slot of the gear disk 15; a mounting frame 16, which is fixedly connected to the gear disk 15, and several vision inspection mechanisms 7 are respectively installed in multiple mounting slots of the mounting frame 16; the motor 14 and the gear disk 15 are configured to cooperate to adjust the position of the vision inspection mechanism 7.

[0024] By adjusting the structural design of structure 13, when the vision inspection mechanism 7 takes pictures of the welding position of the workpiece, if there is a blind spot, the motor 14 is turned on to drive the vision inspection mechanism 7 to rotate and adjust the position of the vision inspection mechanism 7 to avoid some parts of the nut welding position not being detected. The gear disk 15 rotates from 0 to 45 degrees, and after rotating to a certain angle, the motor 14 rotates in the opposite direction.

[0025] like Figure 2 and Figure 4 As shown, it also includes: two mounting plates 9, both fixedly connected to the mounting platform 4; two cylinders 10, respectively fixedly mounted on the two mounting plates 9; and two movable plates 11, respectively fixedly connected to the output ends of the two cylinders 10; the cylinders 10 and the movable plates 11 are configured to cooperate to adjust the position of the workpiece on the conveying mechanism 5.

[0026] With the structural design of two cylinders 10, when the worker places the workpiece on the conveyor belt, the two cylinders 10 are activated, and the rollers 17 on the two moving plates 11 adjust the position of the workpiece on the conveyor belt to ensure that the welding position is in the working position of the vision inspection mechanism 7. At the same time, when inspecting different welding positions, the extension length of the telescopic rods of the two cylinders 10 can be adjusted to ensure that the welding position of the workpiece is in the working position of the vision inspection mechanism 7. This structural design can improve the versatility of the equipment.

[0027] like Figure 2 and Figure 4 As shown, it also includes: a guide rod 12, which is slidably mounted on the mounting plate 9, and one end of the guide rod 12 is fixedly connected to one side of the movable plate 11; the guide rod 12 is used to guide the sliding direction of the movable plate 11.

[0028] like Figure 4 As shown, it also includes: several rollers 17, all rotatably connected inside the moving plate 11. The structure of the rollers 17 is designed so that when the two moving plates 11 clamp the two sides of the workpiece, the workpiece can also move on the conveyor belt.

[0029] like Figure 2 As shown, it also includes: a reinforcing rib 8, which is fixedly connected to the bottom of the mounting platform 4, and one side of the reinforcing rib 8 is fixedly connected to one side of the projection welding machine body 1. The structural design of the reinforcing rib 8 improves the strength of the mounting platform 4 on the projection welding machine body 1.

[0030] like Figure 1 and Figure 2 As shown, the conveying mechanism 5 includes a transmission belt, a drive wheel, and a drive device. The output end of the drive device is connected to the drive wheel, and the drive wheel is connected to the inner wall of the transmission belt. Through the structural design of the conveying mechanism 5, the workpiece can be easily moved to the detection position of the vision inspection mechanism 7 for inspection.

[0031] This utility model provides a projection welding machine with nut incomplete weld detection, and its specific working principle is as follows:

[0032] When welding nuts onto a workpiece, the workpiece is first placed on the projection welding machine body 1, with the nut positioned at the welding point. The projection welding machine body 1 is then turned on to weld the workpiece. After welding, the worker removes the workpiece from the welding table and places it on the conveyor belt of the conveyor mechanism 5. The drive device is then activated, and the conveyor belt moves the workpiece. When the workpiece moves between two moving plates 11, two cylinders 10 are activated, and the rollers 17 on the two moving plates 11 adjust the position of the workpiece on the conveyor belt. When the conveyor belt moves the workpiece to the inspection position of the vision inspection mechanism 7, the vision inspection mechanism 7 is activated. The vision inspection mechanism 7 takes a picture of the welding position, and the data is transmitted to the control box 2. The control box 2 analyzes the welding effect, and when a defect occurs, the alarm device 3 issues an alarm signal to remind the worker, thus ensuring that the produced products are free of defects.

[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 projection welding machine for detecting missing welds in nuts, characterized in that, include: Projection welding machine body (1); The control box (2) is installed on the projection welding machine body (1); An alarm device (3) is installed on the control box (2); The mounting platform (4) is fixedly connected to the projection welding machine body (1); A conveying mechanism (5) is provided on the mounting platform (4); The support frame (6) is fixedly connected to the mounting platform (4); An adjustment structure (13) is provided on the support frame (6); Several visual inspection mechanisms (7) are all mounted on the adjustment structure (13); The conveying mechanism (5) is configured to drive the workpiece to the detection position of the vision inspection mechanism (7).

2. The projection welding machine with nut leak detection according to claim 1, characterized in that: The adjustment structure (13) includes a gear disk (15), which is rotatably mounted on the support frame (6); A motor (14) is mounted on the support frame (6), and the bevel gear of the motor (14) meshes with the slot of the gear disk (15); Mounting bracket (16) is fixedly connected to the gear disk (15), and several vision inspection mechanisms (7) are respectively installed in multiple mounting slots of the mounting bracket (16); The motor (14) and the gear disk (15) are configured to cooperate to adjust the position of the vision inspection mechanism (7).

3. A projection welding machine for detecting missing welds in nuts according to claim 1, characterized in that, Also includes: Both mounting plates (9) are fixedly connected to the mounting platform (4); Two cylinders (10) are fixedly mounted on two mounting plates (9), respectively; Two movable plates (11) are fixedly connected to the output ends of two cylinders (10), respectively; The cylinder (10) and the moving plate (11) are configured to cooperate to adjust the position of the workpiece on the conveying mechanism (5).

4. A projection welding machine for detecting missing welds in nuts according to claim 3, characterized in that, Also includes: The guide rod (12) is slidably disposed on the mounting plate (9), and one end of the guide rod (12) is fixedly connected to one side of the movable plate (11).

5. A projection welding machine for detecting missing welds in nuts according to claim 4, characterized in that, Also includes: Several rollers (17) are rotatably connected inside the movable plate (11).

6. A projection welding machine for detecting missing welds in nuts according to claim 1, characterized in that, Also includes: A reinforcing rib (8) is fixedly connected to the bottom of the mounting platform (4), and one side of the reinforcing rib (8) is fixedly connected to one side of the projection welding machine body (1).

7. A projection welding machine for detecting missing welds in nuts according to claim 1, characterized in that: The transmission mechanism (5) includes a transmission belt, a drive wheel, and a drive device. The output end of the drive device is connected to the drive wheel, and the drive wheel is connected to the inner wall of the transmission belt.

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