Spot welding machine with automatic feeding device

Abstract

The utility model relates to the technical field of spot welding machines, and discloses a spot welding machine with an automatic feeding device, which comprises a conveying belt, an electric welding frame is fixedly mounted in the middle of one side of the conveying belt, an electric welding machine is fixedly mounted in the middle of the electric welding frame, and a positioning mechanism is mounted on the inner side of the electric welding frame; the positioning mechanism comprises a first electric push rod fixedly installed in the middle of one side of the electric welding frame. After accessories are conveyed to the position between the first electric push rod and the second electric push rod through the conveying belt, the second electric push rod in the positioning mechanism can be driven, a second push plate is pushed to extrude the accessories to the position between the two sets of flow guide positioning frames, and the accessories are continuously close to the first push plate; and a first pressure sensor on the inner side of the detection plate is extruded, the first pressure sensor under pressure can transmit a signal to a control processor, an electric welding machine on an electric welding frame is controlled to conduct electric welding on the accessories, automatic positioning is efficiently completed, and manual operators are not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of spot welders, in particular to a spot welder with an automatic feeding device. Background Technique

[0002] At present, a spot welder is a mechanical device that adopts the principle of double-sided double-point overcurrent welding. When working, two electrodes press the workpiece, so that a certain contact resistance is formed between the two layers of metal under the pressure of the two electrodes. When the welding current flows from one electrode to the other electrode, instantaneous hot melting connection is formed at the two contact resistance points, and the welding current instantaneously forms a loop from the other electrode along the two workpieces to this electrode, and the internal structure of the workpiece to be welded will not be damaged.

[0003] Among them, during the use of the spot welder, in most cases, the operator still needs to hold the workpiece and align the workpiece with the welding head on the spot welder. When driving the spot welder, electric welding is performed on the workpiece. Such an operation not only has low work efficiency, but also increases the risk of injury. Therefore, the spot welder will be installed on the conveyor belt in the market to replace the cumbersome manual feeding of workpieces.

[0004] However, when the workpiece is conveyed by the conveyor belt, it is not easy to accurately position the workpiece at the bottom of the spot welder, and manual assistance is required, which still increases the workload and the risk of injury. Therefore, new technical solutions need to be designed to solve this problem. Content of the Utility Model

[0005] The purpose of the utility model is to provide a spot welder with an automatic feeding device, which solves the problems mentioned in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A spot welder with an automatic feeding device, including a conveyor belt, a welding frame is fixedly installed in the middle of one side of the conveyor belt, a spot welder is fixedly installed in the middle of the welding frame, and a positioning mechanism is installed inside the welding frame;

[0007] The positioning mechanism includes a first electric push rod fixedly installed in the middle of one side of the welding frame, a first push plate fixedly installed at the other end of the first electric push rod, a limiting rod movably installed on both sides of the first push plate, a detection plate fixedly installed at the other end of the two groups of limiting rods, a first pressure sensor fixedly installed in the middle of the detection plate, a second electric push rod fixedly installed in the middle of the other side of the conveyor belt, and a second push rod fixedly installed at the other end of the second electric push rod.

[0008] As an optional solution of the technical solution of this application, the second electric push rod corresponds to the first electric push rod, and the first pressure sensor corresponds to the first push plate.

[0009] As an alternative embodiment of the technical solution of the present application, brackets are fixedly installed at both ends on the other side of the first push plate, and a detection ring is fixedly installed at the other ends of the two groups of brackets.

[0010] As an alternative embodiment of the technical solution of the present application, a second pressure sensor is fixedly installed in the middle of the side wall of the detection ring. The second pressure sensor corresponds to the side wall of the electric welding machine and can detect the detection ring.

[0011] As an alternative embodiment of the technical solution of the present application, flow guiding and positioning frames are fixedly installed at both ends of the side wall of the spot welding machine. One end of the two groups of flow guiding and positioning frames is arc-shaped, and the other ends of the two groups of flow guiding and positioning frames are both vertical, which can position and guide the fittings.

[0012] As an alternative embodiment of the technical solution of the present application, a fixing frame is fixedly installed at one end of the conveyor belt, and an ultrasonic sensor is obliquely installed in the middle of the fixing frame. The transmitting end of the ultrasonic sensor corresponds to the middle of the first electric push rod and the second electric push rod, which can detect whether the fittings are in place.

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

[0014] 1. After the fittings are conveyed between the first electric push rod and the second electric push rod by the conveyor belt in the technical solution of the present application, the second electric push rod in the positioning mechanism is driven to push the second push plate to squeeze the fittings to between the two groups of flow guiding and positioning frames. As the fittings continuously approach the first push plate and squeeze the first pressure sensor inside the detection plate, the first pressure sensor under pressure will transmit a signal to the control processor, and the electric welding machine on the welding frame will weld the fittings, efficiently completing automatic positioning without manual operation.

[0015] 2. In the technical solution of the present application, a fixing frame is fixedly installed at one end of the conveyor belt, and an ultrasonic sensor is obliquely installed in the middle of the fixing frame. When the fittings are conveyed on the conveyor belt and reach the middle position between the first electric push rod and the second electric push rod, the ultrasonic sensor will transmit the detected signal to the control processor, driving the second electric push rod to push the second push plate, squeezing the fittings to between the two groups of flow guiding and positioning frames for welding, and automatically pushing the fittings to the bottom of the electric welding machine without manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objects and advantages of the present utility model will become more obvious:

[0017] Figure 1 FIG. is a schematic diagram of the overall structure of a spot welding machine with an automatic feeding device of the present utility model;

[0018] Figure 2 Schematic diagram of the distribution structure of the first push plate and the second push plate of a spot welder with an automatic feeding device according to the present utility model;

[0019] Figure 3 Partial enlarged schematic view of part A of a spot welder with an automatic feeding device according to the present utility model.

[0020] In the figure: 1, conveyor belt; 11, spot welding frame; 12, spot welder; 2, first electric push rod; 21, first push plate; 22, limiting rod; 23, detection plate; 24, first pressure sensor; 25, second electric push rod; 26, second push plate; 3, bracket; 31, detection ring; 32, second pressure sensor; 33, diversion positioning frame; 34, fixing frame; 35, ultrasonic sensor. Specific implementation mode

[0021] Please refer to Figures 1-3 , the present utility model provides a technical solution: a spot welder with an automatic feeding device, including a conveyor belt 1, a spot welding frame is fixedly installed in the middle of one side of the conveyor belt 1, a spot welder is fixedly installed in the middle of the spot welding frame, and a positioning mechanism is installed inside the spot welding frame;

[0022] The positioning mechanism includes a first electric push rod 2 fixedly installed in the middle of one side of the spot welding frame, a first push plate 21 fixedly installed at the other end of the first electric push rod 2, limiting rods 22 movably installed on both sides of the first push plate 21, a detection plate 23 fixedly installed at the other ends of the two groups of limiting rods 22, a first pressure sensor 24 fixedly installed in the middle of the detection plate 23, a second electric push rod 25 fixedly installed in the middle of the other side of the conveyor belt 1, and a second push rod fixedly installed at the other end of the second electric push rod 25. The second electric push rod 25 corresponds to the first electric push rod 2, and the first pressure sensor 24 corresponds to the first push plate 21.

[0023] In this technical solution, after the accessories are conveyed between the first electric push rod 2 and the second electric push rod 25 by the conveyor belt 1, the second electric push rod 25 in the positioning mechanism will be driven to push the second push plate 26 to squeeze the accessories to between the two groups of diversion positioning frames 33. As the accessories continuously approach the first push plate 21 and squeeze the first pressure sensor 24 inside the detection plate 23, the first pressure sensor 24 under pressure will send a signal to the control processor, and the spot welder on the spot welding frame will weld the accessories, efficiently completing automatic positioning without manual operation.

[0024] In some technical solutions, a fixing frame 34 is fixedly installed at one end of the conveyor belt 1, and an ultrasonic sensor 35 is inclinedly installed in the middle of the fixing frame 34. The transmitting end of the ultrasonic sensor 35 corresponds to the middle of the first electric push rod 2 and the second electric push rod 25.

[0025] In this technical solution, when the fitting is conveyed on the conveyor belt 1 and reaches the middle positions of the first electric push rod 2 and the second electric push rod 25, the ultrasonic sensor 35 will transmit the detected signal to the control processor, driving the second electric push rod 25 to push the second push plate 26, squeezing the fitting between the two groups of diversion and positioning frames 33 for electric welding. Without manual operation, the fitting can be automatically pushed to the bottom of the electric welder.

[0026] In some technical solutions, diversion and positioning frames 33 are fixedly installed at both ends of the side wall of the spot welding. One end of the two groups of diversion and positioning frames 33 is arc-shaped, and the other end of the two groups of diversion and positioning frames 33 is vertical.

[0027] In this technical solution, after the fitting is pushed between the two groups of diversion and positioning frames 33 by the second electric push rod 25, the fitting can be limited by the vertical diversion and positioning frames 33. On the contrary, after the fitting is welded, it is convenient to divert the fitting onto the conveyor belt 1 in cooperation with the arc-shaped diversion and positioning frames 33.

[0028] In some technical solutions, brackets 3 are fixedly installed at both ends on the other side of the first push plate 21. The other ends of the two groups of brackets 3 are fixedly installed with a detection ring 31. A second pressure sensor 32 is fixedly installed in the middle of the side wall of the detection ring 31, and the second pressure sensor 32 corresponds to the side wall of the electric welder.

[0029] In this technical solution, after the first electric push rod 2 is reset, in cooperation with the second pressure sensor 32 on the detection ring 31, the extrusion force on the detection ring 31 can be detected to ensure that the first electric push rod 2 is positioned at the same position every time it is reset.

[0030] When a spot welder with an automatic feeding device is in use, it should be noted that the present invention is a spot welder with an automatic feeding device. Each component is a general standard component or a component known to those skilled in the art. Its structure and principle can be known by those skilled in the art through technical manuals or by conventional experimental methods.

[0031] During use, first place the fitting to be welded on the conveyor belt 1 and drive the conveyor belt 1 to convey the fitting. After the fitting is conveyed between the first electric push rod 2 and the second electric push rod 25, the second electric push rod 25 in the positioning mechanism is driven to push the second push plate 26 to squeeze the fitting to between the two sets of diversion positioning frames 33. As the fitting continuously approaches the first push plate 21 and squeezes the first pressure sensor 24 inside the detection plate 23, the first pressure sensor 24 under pressure will transmit a signal to the control processor, and the electric welder on the welding frame will weld the fitting, efficiently completing automatic positioning without the need for manual operators. At the same time, through the fixing frame 34 fixedly installed at one end of the conveyor belt 1, and an ultrasonic sensor 35 is inclinedly installed in the middle of the fixing frame 34. When the fitting is conveyed on the conveyor belt 1 and reaches the middle positions of the first electric push rod 2 and the second electric push rod 25, the ultrasonic sensor 35 will transmit the detected signal to the control processor, drive the second electric push rod 25 to push the second push plate 26, squeeze the fitting to between the two sets of diversion positioning frames 33 for welding, and can automatically push the fitting to the bottom of the electric welder without manual operation. Finally, after waiting for the electric welder to complete welding, the first electric push rod 2 can be driven to push the first push plate 21 to push the welded fitting to the middle of the conveyor belt 1 for conveying.

Claims

1. A spot welding machine with an automatic feeding device, comprising a conveyor belt (1), characterized in that: A welding frame (11) is fixedly installed in the middle of one side of the conveyor belt (1), a welding machine (12) is fixedly installed in the middle of the welding frame, and a positioning mechanism is installed inside the welding frame; The positioning mechanism comprises a first electric push rod (2) fixedly mounted in the middle of one side of the welding frame, a first push plate (21) fixedly mounted at the other end of the first electric push rod (2), limit rods (22) movably mounted on both sides of the first push plate (21), a detection plate (23) fixedly mounted at the other ends of two groups of limit rods (22), a first pressure sensor (24) fixedly mounted in the middle of the detection plate (23), a second electric push rod (25) fixedly mounted in the middle of the other side of the conveyor belt (1), and a second push rod fixedly mounted at the other end of the second electric push rod (25).

2. A spot welding machine with an automatic feeding device according to claim 1, characterized in that: The second electric push rod (25) corresponds to the first electric push rod (2), and the first pressure sensor (24) corresponds to the first push plate (21).

3. The spot welding machine with automatic feeding device according to claim 1, characterized in that: Brackets (3) are fixedly mounted at both ends of the other side of the first push plate (21), and detection rings (31) are fixedly mounted at the other ends of the two groups of brackets (3).

4. A spot welding machine with an automatic feeding device according to claim 3, characterized in that: A second pressure sensor (32) is fixedly mounted in the middle of the side wall of the detection ring (31), and the second pressure sensor (32) corresponds to the side wall of the electric welding machine.

5. The spot welding machine with automatic feeding device according to claim 1, characterized in that: Both ends of the spot-welded side walls are fixedly mounted with flow guide positioning frames (33); one end of the two groups of flow guide positioning frames (33) is in an arc shape, and the other ends of the two groups of flow guide positioning frames (33) are in a vertical shape.

6. The spot welding machine with automatic feeding device according to claim 1, characterized in that: A fixing frame (34) is fixedly mounted at one end of the conveyor belt (1), an ultrasonic sensor (35) is obliquely mounted in the middle of the fixing frame (34), and a transmitting end of the ultrasonic sensor (35) corresponds to the middle of the first electric push rod (2) and the second electric push rod (25).

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