Welding wire mistake proofing device

Abstract

The utility model relates to a welding wire mistake proofing device which comprises an identification module and a control module. The controller is electrically connected with the identification module and the welding equipment; a welding wire protection device; the wire feeding mechanism is used for conveying the welding wires in the welding wire protection device to welding equipment; the locking mechanism is arranged on the welding wire protection device; the identification module comprises identifications used for distinguishing welding wires of different types and an identification reading device used for identifying the identifications, and the identification reading device is electrically connected with the controller; the wire feeding mechanism and the locking mechanism are electrically connected with the controller, and the controller is configured to control whether the locking mechanism is unlocked or not according to the identification result of the identification reading device, correspondingly control the welding wire protection device to be opened after the locking mechanism is unlocked, and correspondingly control the welding wire protection device to be opened after the welding wire in the welding wire protection device is replaced with the welding wire which is correctly identified by the identification reading device. And the wire feeding action is performed through the wire feeding mechanism. According to the welding wire mistake proofing device, correct welding wire replacement can be achieved only through one time, correct welding wires do not need to be found repeatedly, and welding scrapping of workpieces is avoided.

Description

Technical Field

[0001] This utility model relates to the field of error prevention devices, and in particular to a welding wire error prevention device. Background Technology

[0002] When welding workpieces, it is necessary to select the appropriate welding wire according to the different types of workpieces. However, since the materials, thicknesses and types of various welding wires are very similar, it is difficult to make accurate distinctions by simply observing the appearance of the welding wire with the naked eye. This often results in the welding wire being mismatched with the workpiece, causing the workpiece to be poorly connected and thus scrapping the welding workpiece.

[0003] To address the aforementioned technical issues, Chinese utility model patent ZL201520050518.6 (authorization announcement number CN204430596U) discloses a welding wire error-proof sensing device for welding equipment. This device includes several positioning sockets and several positioning brackets. The positioning sockets form multiple welding wire stations corresponding to different models. Contact sensors are installed on the positioning sockets and connected to the welding equipment via circuitry. Welding wire tubes are installed on the upper part of the positioning brackets, and insertion rods are installed at the bottom of the positioning brackets. The top surface of the positioning sockets has an opening, and the openings of the positioning sockets and the insertion rods of the positioning brackets form a one-to-one corresponding mating connection.

[0004] Although the aforementioned welding wire error-proofing sensing device can transmit sensing signals to a PLC controller via a contact sensor, and the PLC controller displays the current welding wire model to determine if the welding wire replacement is correct, the PLC controller will control the welding equipment to perform the welding operation if the correct welding wire model is used, thereby preventing incorrect welding wire replacement and ensuring the correct use of the corresponding welding wire for the component. However, the aforementioned welding wire error-proofing sensing device has the following limitations: because this welding wire error-proofing sensing device requires manual insertion of the positioning bracket of the welding wire tube into the positioning socket and the transmission of sensing signals to the PLC controller via a contact sensor, if the incorrect welding wire model is used, the welding wire tube needs to be replaced again, and the correct welding wire needs to be found through repeated attempts. Therefore, this method is time-consuming, labor-intensive, has a low degree of automation, and low work efficiency. Therefore, further improvements to the existing technology are needed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a time-saving and labor-saving welding wire error prevention device in light of the above-mentioned prior art.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the welding wire error prevention device includes:

[0007] The identification module is used to identify the type of welding wire;

[0008] The controller, electrically connected to the identification module and the welding equipment, is used to control whether the welding equipment performs welding operations based on the identification result of the identification module.

[0009] Its features also include:

[0010] Welding wire protection device, used for storing welding wire;

[0011] The wire feeding mechanism is used to transport the welding wire from the wire protection device to the welding equipment.

[0012] A locking mechanism, located on the welding wire protection device, is used to lock the welding wire protection device;

[0013] The aforementioned identification module includes a marker for distinguishing different types of welding wire and a marker reading device for identifying the marker. The identification module is electrically connected to the controller via the marker reading device. The wire feeding mechanism and the locking mechanism are both electrically connected to the controller. The controller is configured to: control whether the locking mechanism unlocks based on the identification result of the marker reading device; after the locking mechanism unlocks, control the welding wire protection device to open accordingly; and after the welding wire in the welding wire protection device is replaced with the welding wire correctly identified by the marker reading device, the wire feeding mechanism finally performs the wire feeding action.

[0014] Preferably, the welding equipment is a welding robot with a robotic arm, and the end of the wire feeding mechanism is located on the front end of the robotic arm of the welding robot. Since the welding robot is a multi-axis robot, the front end of its robotic arm can rotate 360°, which allows for adjustment of posture to better perform welding actions.

[0015] In order to deliver the welding wire, the wire feeding mechanism is a wire feeding tube, which has an inlet end and an outlet end. The inlet end of the wire feeding tube can extend into the welding wire protection device and is used to place the welding wire in the corresponding welding wire protection device. The outlet end of the wire feeding tube is the end of the wire feeding mechanism.

[0016] In order to obtain the welding wire storage status in the welding wire protection device in a timely manner, the welding wire protection device has a welding wire outlet, and a sensor for detecting whether there is welding wire is provided near the welding wire outlet. The sensor is electrically connected to the controller.

[0017] Preferably, the locking mechanism is an electronically controlled lock. The automatic opening and closing of the electronically controlled lock serves two purposes: firstly, it prevents the welding wire from being protected; secondly, it automates the process by automatically opening the lock after the welding wire is correctly identified. This allows workers to replace the welding wire in the protective device with the correctly identified wire without manual intervention, ensuring the correct use of the welding wire and preventing workpiece welding failure.

[0018] To facilitate the differentiation of different types of welding wire, each marking is a different color.

[0019] Preferably, the identifier is a QR code or a barcode, and the identifier reading device is a barcode scanner capable of recognizing QR codes and barcodes.

[0020] To enable automated control, the controller is also electrically connected to a touch screen.

[0021] Compared with existing technologies, the advantages of this invention are as follows: By incorporating a welding wire protection device, a locking mechanism for locking the welding wire protection device, and a marking and reading device, and by using the marking and reading device to read the markings of various types of welding wires, this welding wire error prevention device can automatically control the locking mechanism to unlock after the marking and reading device identifies the correct welding wire. This allows workers to replace the welding wire in the welding wire protection device with the correct welding wire identified by the marking and reading device. Therefore, this welding wire error prevention device can achieve the correct welding wire replacement in just one step, eliminating the need to repeatedly search for the correct welding wire, effectively ensuring the correct use of welding wire and preventing workpiece welding failure. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the welding wire error prevention device in an embodiment of this utility model;

[0023] Figure 2 This is a schematic diagram of the welding wire error prevention device in the embodiments of this utility model. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] like Figure 1 and Figure 2 The diagram shows the preferred embodiment of this example. The wire error prevention device in this embodiment includes an identification module, a controller 2, a wire protection device 4, a wire feeding mechanism 5, and a locking mechanism 6. In this embodiment, the controller 2 is a PLC controller.

[0026] The identification module is used to identify the type of welding wire. The module includes a label 11 for distinguishing different types of welding wire and a label reading device 12 for identifying the label 11. In this embodiment, different types of welding wire are placed on different wire spools or inside different wire drums. The labels 11 are affixed to the outside of the wire spools or drums. In this embodiment, each label 11 is a different color, which facilitates the differentiation of different types of welding wire by the staff. The label 11 is a QR code or barcode, and the label reading device 12 is a barcode scanner capable of recognizing QR codes and barcodes. The technology of using a barcode scanner to read the label 11 is existing technology and will not be elaborated further here.

[0027] The welding wire protection device 4 is used to store welding wire; the wire feeding mechanism 5 is used to transport the welding wire in the welding wire protection device to the welding equipment 3; the locking mechanism 6 is provided on the welding wire protection device 4 and is used to lock the welding wire protection device 4; the above-mentioned identification reading device 12, wire feeding mechanism 5 and locking mechanism 6 are all electrically connected to the controller 2. Of course, the controller 2 is also electrically connected to the welding equipment 3. The controller 2 is configured to: control whether the locking mechanism 6 unlocks according to the identification result of the identification reading device 12; after the locking mechanism 6 unlocks, it controls the welding wire protection device 4 to open accordingly; and after the welding wire in the welding wire protection device 4 is replaced with the welding wire correctly identified by the identification reading device 12, the wire feeding action is then performed through the wire feeding mechanism 5, and finally the welding equipment 3 is controlled to perform welding operation.

[0028] like Figure 1 As shown, the welding equipment 3 in this embodiment is a welding robot with a robotic arm 31, and the end of the wire feeding mechanism 5 is located on the front end of the robotic arm 31 of the welding robot. The wire feeding mechanism 5 is a wire feeding tube with an inlet end 51 and an outlet end 52. The inlet end 51 of the wire feeding tube can extend into the welding wire protection device 4 and is used to house the welding wire in the corresponding welding wire protection device 4. The outlet end 52 of the wire feeding tube is the end of the wire feeding mechanism 5.

[0029] like Figure 1 As shown, in this embodiment, the welding wire protection device 4 is a fence, and the locking mechanism 6 is an electric lock. The welding wire protection device 4 has a welding wire outlet 41, and a sensor 7 for detecting whether there is welding wire is provided near the welding wire outlet 41. The sensor 7 is electrically connected to the controller 2. The sensor 7 in this embodiment is prior art and will not be described in detail here.

[0030] In addition, to achieve intelligent control, the controller 2 is also electrically connected to a touch screen 8. The touch screen 8 has a built-in welding wire replacement interface and welding station QR code. In this embodiment, there are two types of welding wire: welding wire A, which is marked with a yellow QR code, and welding wire B, which is marked with a black QR code.

[0031] Taking the example of replacing welding wire A with welding wire B, the working process of the welding wire error prevention device in this embodiment is as follows:

[0032] When you need to change the welding wire, open the welding wire replacement interface;

[0033] Use a barcode scanner to scan the welding station QR code on the welding wire replacement interface, and then click on

B Welding Wire Scan

[0034] Workers can find the corresponding wire spool or wire canister by the color (black) of the B-type welding wire mark, and use a barcode scanner to scan the mark on the wire spool or wire canister with the B-type welding wire mark. After successful identification, the controller 2 controls the locking mechanism 6 to unlock, and then the welding wire protection device 6 opens. Workers can then replace the welding wire that has entered the welding wire protection device 6 with the mark reading device 12 to identify the correct welding wire.

[0035] After the welding wire is replaced, click on the welding wire replacement interface and click B to complete the welding wire replacement. After the controller 2 recognizes the QR code and it matches, the wire feeding mechanism 5 can feed the wire and the welding equipment 3 can perform welding operations.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A welding wire error-proofing device, comprising: an identification module for identifying the type of welding wire; a controller (2) electrically connected with the identification module and a welding device (3) for controlling whether the welding device (3) performs a welding operation according to the identification result of the identification module; characterized in that it further comprises: a welding wire protection device (4) for storing welding wire; a wire feeding mechanism (5) for feeding the welding wire in the welding wire protection device to the welding device (3); a locking mechanism (6) provided on the welding wire protection device (4) for locking the welding wire protection device (4); the identification module comprises an identification (11) for distinguishing various types of welding wire and an identification reading device (12) for identifying the identification (11), and the identification module is electrically connected with the controller (2) through the identification reading device (12); the wire feeding mechanism (5) and the locking mechanism (6) are both electrically connected with the controller (2), and the controller (2) is configured to control whether the locking mechanism (6) is unlocked according to the identification result of the identification reading device (12), to correspondingly control the welding wire protection device (4) to be opened after the locking mechanism (6) is unlocked, and to finally perform a wire feeding action through the wire feeding mechanism (5) after the welding wire in the welding wire protection device (4) is replaced with a correct welding wire identified by the identification reading device (12).

2. The welding wire mistake proofing device of claim 1, wherein: The welding device (3) is a welding robot with a mechanical arm (31), and the end of the wire feeding mechanism (5) is provided on the front end of the mechanical arm (31) of the welding robot.

3. The welding wire mistake proofing device of claim 2, wherein: The wire feeding mechanism (5) is a wire feeding tube, which has a wire feeding end (51) and a wire outlet end (52), the wire feeding end (51) of the wire feeding tube can be inserted into the welding wire protection device (4) and the corresponding welding wire in the welding wire protection device (4) is arranged therein, and the wire outlet end (52) of the wire feeding tube is the end of the wire feeding mechanism (5).

4. The welding wire mistake proofing device of claim 3, wherein: The welding wire protection device (4) has a welding wire outlet (41), and a sensor (7) for detecting whether there is welding wire is provided at a position adjacent to the welding wire outlet (41), and the sensor (7) is electrically connected with the controller (2).

5. The welding wire mistake proofing device of any of claims 1-4, wherein: The locking mechanism (6) is an electrically controlled lock.

6. The welding wire mistake proofing device of claim 5, wherein: Each identification (11) has a different color.

7. The wire prevention device of claim 6, wherein: The identification (11) is a two-dimensional code or a bar code, and the identification reading device (12) is a code scanning gun capable of identifying two-dimensional codes and bar codes.

8. The welding wire mistake proofing device of claim 7, wherein: The controller (2) is further electrically connected with a touch screen (8).

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